AU2009250990B2 - Captive Pivot System For Shower Door And Head Frame - Google Patents
Captive Pivot System For Shower Door And Head Frame Download PDFInfo
- Publication number
- AU2009250990B2 AU2009250990B2 AU2009250990A AU2009250990A AU2009250990B2 AU 2009250990 B2 AU2009250990 B2 AU 2009250990B2 AU 2009250990 A AU2009250990 A AU 2009250990A AU 2009250990 A AU2009250990 A AU 2009250990A AU 2009250990 B2 AU2009250990 B2 AU 2009250990B2
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- AU
- Australia
- Prior art keywords
- block
- upper pivot
- pivot pin
- base block
- door
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000011521 glass Substances 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims description 8
- 230000007797 corrosion Effects 0.000 claims description 8
- 229910001369 Brass Inorganic materials 0.000 claims description 6
- 239000010951 brass Substances 0.000 claims description 6
- 229920005123 Celcon® Polymers 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 230000000717 retained effect Effects 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000906 Bronze Inorganic materials 0.000 claims description 2
- 239000010974 bronze Substances 0.000 claims description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 abstract description 9
- 239000004033 plastic Substances 0.000 abstract description 9
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 239000012459 cleaning agent Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K3/00—Baths; Douches; Appurtenances therefor
- A47K3/28—Showers or bathing douches
- A47K3/30—Screens or collapsible cabinets for showers or baths
- A47K3/36—Articulated screens
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K3/00—Baths; Douches; Appurtenances therefor
- A47K3/28—Showers or bathing douches
- A47K3/283—Fixed showers
- A47K3/286—Emergency showers
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D5/00—Construction of single parts, e.g. the parts for attachment
- E05D5/02—Parts for attachment, e.g. flaps
- E05D5/0246—Parts for attachment, e.g. flaps for attachment to glass panels
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D7/00—Hinges or pivots of special construction
- E05D7/08—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions
- E05D7/081—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions the pivot axis of the wing being situated near one edge of the wing, especially at the top and bottom, e.g. trunnions
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D7/00—Hinges or pivots of special construction
- E05D7/04—Hinges adjustable relative to the wing or the frame
- E05D2007/0469—Hinges adjustable relative to the wing or the frame in an axial direction
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D7/00—Hinges or pivots of special construction
- E05D7/04—Hinges adjustable relative to the wing or the frame
- E05D2007/0484—Hinges adjustable relative to the wing or the frame in a radial direction
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D7/00—Hinges or pivots of special construction
- E05D7/0009—Adjustable hinges
- E05D7/0018—Adjustable hinges at the hinge axis
- E05D7/0027—Adjustable hinges at the hinge axis in an axial direction
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D7/00—Hinges or pivots of special construction
- E05D7/04—Hinges adjustable relative to the wing or the frame
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
- E05Y2800/67—Materials; Strength alteration thereof
- E05Y2800/672—Glass
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/114—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for showers
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hinges (AREA)
Abstract
A captive pivot system is provided for mounting a frameless glass-panelled pivot shower Joor onto a shower head of an extruded, aluminium-framed shower enclosure and has when in tailed, two plastic pivot blocks vertically-linked by a metal pivot pin, a first block is a rectang lar-shaped, upper pivot pin base block wjth a central hole which extends axially comple ely through the block which is internally stepped downwards from the top of a wide diamete r upper portion of the hole to the bottom of a narrow-diameter lower portion; the pin has a flang d top which, during installation, is positioned top-facing-upwards within the wide diameter upper portion of the central hole, the pin's shaft is designed to pass completely through the first block and project from its convex bottom surface; an exposed lower part of the pin is barbed for force-fitting into an upwardly-facing central hole in an upwardly-facing concave surface of a triangular second plastic block to extend partway into it; the second block is a combination door glass panel clamp, hinge and pivot block pre-mounted over a top edge of a glass l oor panel and fits below the first block and once the first block is fixed to the head channel the pin is held captive for rotational movements and limited vertical movements within the co fines of the first block (and head channel) and is fixed within the second (or lower) block and r tates with the second block and moves up and down when a door is opened or closed but is limited in its drop-down vertical travel to thereby prevent the top of the shower door from fallin out of the shower enclosure head fixed cross frame member when excessive force is appli d to an installed door. 14a 15a fA 15c
Description
IP Australia AUSTRALIA 17 DEC 2009 RECE 0 CM Patents Act 1990 -2001 ORIGINAL COMPLETE SPECIFICATION STANDARD PATENT The following statement is a full description of this invention including the best method of performance known to us: Inventio Title CAPTIVE PIVOT SYSTEM FOR SHOWER DOOR AND HEAD FRAME Name of Applicant DIAS ALUMINIUM PRODUCTS PTY.LTD.
-1 This invention relates generally to pivot shower doors for shower enclosures of the type wherein a shower door is mounted vertically within frame members via pivots at the corners using two sets of plastic blocks one block of each set being fixed to a respective upper or lower fixed frame member of a shower enclosure, the other block of each set being fixed to 5 a respective upper or lower edge of the door; a pair of blocks of each set is connected by a steel pin passed through pre-formed holes in the blocks and when a shower door swings to and fro on the pivot pins during opening and closing movements, upper and lower inner blocks mounted upon the door swing in unison with the door; blocks comprise an upper (and outer) pivot base block which is fixed within a channel of a shower head upper fixed-frame cross to member and a lower (and outer) pivot base block fixed within the channel of a bottom fixed frame cross member forming a door sill, an inner upper pivot door-clamping and hinge block is fixed to the top of the door and an inner lower pivot door-clamping and hinge block is fixed to the bottom of the door; In this system, all outer blocks have (in addition to fixing holes for fixing to fixed frame or door frame members and central pivot pin holes passing therethrough), I ~ correspondingly-profiled convex and concave contact surfaces respectively so that when a door is swung open each door pivot hinge/clamp block swings with the door away from its base block and moves with the door as a unit while unseating from and in non-alignment with the base block and when the door swings into a closed position a convex surface of the fixed pivot pin base block is seated within a concavity of the pivot door hinge/clamp block and in alignment 20 therewith parallel to fixed head and sill frame members. The invention is particularly applicable to the foregoing pivot shower door system wherein similar upper and lower pivot pin base blocks are adapted to be fixed within respective channels of head and sill cross frame members and each fixed pivot base block is connected by a metal pivot pin to a slotted plastic pivot/clamp block straddling and mounted over the edge of a frameless glass door panel and bolted to the panel, but wherein the upper pivot base block and its associated pivot pin are specially designed and function to loosely maintain the pin within its block when the block is fixed to the head frame to prevent the top of the shower door from falling out of the shower head cross frame member mounting block when excessive force is applied to an installed door . and to compensate for flexing of the frame and excessive play due to excessive tolerances in 3 ~ dimensions of fixed and movable glass panels of a shower enclosure. . Safety problems arise during or after installation of pivot shower doors within shower enclosures due to excessive play caused by too-wide variations in tolerances of glass panels. More specifically because Australian Standards for glass tolerances range from +/ 2.00mm , a shower screen pivot door glass panel manufactured by a glass merchant may be 2.00 mm smaller than the original size requested, while the fixed glass panel may be 2.0 mm -2 larger than that requested, These factors can create a problem by increasing the gap between the shower screen head and glass door panel by up to 4.00 mm further reducing the purchase of a pivot pin used to locate the glass door panel in position and increasing the risk of the door falling out from its mount should someone push or raise the head of a shower screen extrusion head frame member by flexing it out of alignment. It is an object of this invention to overcome or at least alleviate to foregoing problems and disadvantages by providing a pivot block with a captive pivot pin for use with a frameless glass-panelled pivot door mounted within a shower enclosure. The invention according to a general aspect provides a captive pivot system for for mounting an indexing pivot shower door to a head frame of a shower enclosure wherein an upper pivot pin base block and a lower pivot pin base block are adapted to be fixed respectively within a channel of a shower enclosure head or sill fixed cross frame member installed in a shower enclosure and wherein each fixed pivot base block is operatively connected by an associated door pivot pin to a frameless, glass-panelled, pivot shower door by a respective upper or lower door hinge/clamp pivot block mounted respectively over a bottom or top edge of the panel, and wherein the upper pivot base block has means formed therein associated with means formed on the upper pivot pin to permanently retain the upper pivot pin within the upper pivot base block and also within an associated upper pivot hinge/clamp pivot block wherein the shower door upper pivot base block is formed with a convexly-curved, and 6t when installed, downwardly-facing lower surface for engaging with and disengagement from a concavely-curved and when installed upwardly-facing surface of an associated shower door upper hinge/clamp block mounted upon the door panel, the upper pivot base block being formed with a flat and, when installed, outwardly and upwardly-facing surface for fixing the base block into a channel of a shower enclosure head cross frame member and being formed with a 25 central cylindrical hole which extends axially completely through the base block, the said hole being internally-stepped to provide a wide internal-diameter upper bore and a narrow, internal diameter lower bore, an upper pivot pin of non-uniform diameter being adapted to be placed within the upper pivot base block and housed within the bores thereof and, when installed within a shower recess, being adapted for angular movement within the wide-internal-diameter 30 upper bore and also within the narrow-intemal-diameter lower bore of the upper pivot base block but being adapted for only limited reciprocating vertical travel within the upper pivot block in correspondence with rising/opening and falling/closing indexing movements of a shower door during opening and closing thereof, to thereby prevent, when installed, the top of the shower door from falling out of the shower enclosure head fixed cross frame member when excessive 35- force is applied to an installed door and to compensate for flexing of the frame and excessive play due to excessive tolerances in dimensions of fixed frame members and a pivot shower door.
-3 In one form of the system according to the invention , the downwardly-facing, convexly-curved surface of the upper pivot base block and the upwardly-facing concavely curved surface of the upper hingelclamp block of the captive pivot system of the invention are correspondingly-shaped and the upper surface of the upper hinge/clamp block has a central hole extending partly thereinto and a lower end of the upper pivot pin is adapted to be passed completely through the hole of the pivot base block and a lower portion of the upper pivot pin is adapted to be permanently fixed into the said central recess of the of the upper hinge/clamp block by an interference fit and wherein , the lower portion of the upper pin is barbed and oversized with respect to the central hole or recess of the upper hinge/clamp block the central 1.0 hole or recess of which is correspondingly undersize with respect to the barbed lower-diameter portion of the upper pivot pin enabling the upper pivot pin to be irremovably force-fitted within the central hole or recess of the upper hinge/clamp block More particularly, the upper pivot pin has means projecting radially therefrom adjacent at or adjacent the upper end thereof so that when the pin is placed within the base block and the base block is fixed within a channel of the shower recess head frame, the upper pivot pin is loosely retained within the upper base block by engagement with an internal surface of the upper base block formed between junction of the narrow and wide diameter regions of the hole of the upper pivot base block to limit vertical movement of the upper pivot pin within the upper pivot base block. More particularly means are provided on or adjacent the downwardly-facing end, when installed, of the upper pivot pin which enable the pin to be non-removably fixed within the central upwardly-facing blind bore of the upper hinge/clamp block and an intermediate portion of the upper pivot pin is a shaft adapted for free rotational movement and vertical reciprocation whereby when a pivot door upon which the upper hinge/clamp block is mounted, is opened the door and upper hinge/clamp block move through an angle and rise up and freely rotate with the upper pin as a unit and separate from the overhead upper pivot pin base block and move at an angle thereto and, when the door is closed, the door and with it the upper hinge/clamp block counter-rotate and fall whereby both hinge/clamp block and pivot pin base block make contact in alignment for mounting an indexing pivot shower door to a head frame of a shower enclosure wherein an upper pivot pin base block and a lower pivot pin base block are adapted to be fixed respectively within a channel of a shower enclosure head or sill fixed cross frame door.to thereby prevent, when installed, the top of the shower door from falling out of the -4 shower fixed head frame member when installed in a shower enclosure and wherein each fixed pivot base block is operatively connected by an associated door pivot pin to a pivot shower door panel by a respective upper or lower door hinge/clamp pivot block mounted respectively over a bottom or top edge of the panel, and wherein the upper pivot base block has means formed therein associated with means formed on the upper pivot pin to permanently retain the upper pivot pin within the upper pivot base block and also within an associated upper pivot hinge/clamp pivot block to thereby prevent, when installed, the top of the shower door from falling out of the shower enclosure head fixed cross frame member when excessive force is applied to an installed door and to compensate for flexing of the frame and excessive play due 10 to excessive tolerances in dimensions of fixed frame members and a pivot shower door. More particularly in the captive pivot system according to the invention the pivot shower door upper pivot pin can be formed of rust and corrosion-resistant metal such as. bronze or brass and is preferably corrosion-resistant, nickel-plated brass.and the upper pivot pin base block and its associated glass door panel upper hinge/clamp block are formed of I synthetic polymeric material and the pivot blocks are preferably formed of CELCON or DURALON resin. In a preferred form of the system according to the invention, the upper pivot pin for the upper pivot pin base block has a flanged upper end which when installed with the upper pivot pin base block fixed within the channel of a shower head fixed cross frame member is 2 0 retained for limited vertical movements within the upper pivot base block by contact with a lower vertical motion stop surface or surfaces at the junction of wide and narrow internal diameter regions of the central hole of the upper pivot base block and by contact of the upper surface of the pin head with a horizontal surface of a shower enclosure, head channel cross frame member during opening and closing movements of a pivot shower door to counteract excessive drop-down movements of an installed shower enclosure swing door corresponding to excessive movement of a shower door. More particularly, in the system according to the invention, the diameter of the upper flanged end or head of the upper pivot pin is less than the internal diameter of a wide diameter upper region of the hole extending though the upper pivot base block but is greater jib than the internal diameter of the narrow-diameter lower region of the central hole of the upper pivot base block, and the upper pivot pin has a cylindrical portion intermediate its upper or flanged cap end and its lower end and a terminal or lower end of the upper pivot pin is of circular configuration and is adapted to sit against a circular upwardly-facing internal surface at the bottom of the recess of the upper hinge/clamp block. In a preferred form of the captive pivot system according to the invention, the upper pivot pin has a cylindrical portion intermediate its upper or flanged cap end and its lower end -5 and also in this form, a terminal or lower end of the upper pivot pin is of circular configuration and is adapted to sit against a circular upwardly-facing internal surface at the bottom of the recess of the upper hinge/clamp block. Also in a preferred form of the captive pivot system according to the invention a 5 lower portion of the upper pivot pin has radial extensions formed thereon which are oversize frictional and/or deformable means for force-fitting the lower end of the shaft of the upper pivot pin into the upper hinge/clamp block via an undersize central hole and blind bore formed in the upper surface of upper hinge/ clamp bock whereby the pin is non-removably embedded within the upper hinge/ clamp block and does not move independently with respect to the hinge/clamp block when the upper pivot base block, upper pivot pin and upper hinge/clamp block are installed in a frameless glass panel pivot door system within the framework of a shower enclosure. Furthermore in a preferred form of the captive pivot system according to te invention, the oversize frictional means of the upper pivot pin is an end portion which is formed with a plurality of axially-deformable, annularly-extending radial projections of greater external diameter than the shaft of the pin and the internal diameter of a central, closed-ended blind hole formed in the shower door pivot hinge/clamp block.and the oversize frictional means of the upper pivot pin is/re also undersize with respect to internal diameters of a hole or bore formed in the upper pivot base block to allow the shaft portion only of the upper pivot pin with deformable with deformable projecting therefrom to pass through the lower or narrower-diameter bore of the upper pivot base block to allow the shaft portion only of the upper pivot pin with deformable radial extensions thereon to pass through the base block. In the preferred form of the captive pivot system according to the invention, the oversize frictional means of the upper pivot pin are undersize with respect to the internal diameters of holes or bores formed in the upper pivot base block to allow the shaft portion only of the upper pivot pin with deformable radial extensions projecting therefrom to be passed through both bores of the upper pivot base block for assembly and installation. A non-limiting example of a preferred embodiment or practical arrangement of the invention will now be described with reference to the accompanying drawings in which: 3 6 Figure 1 is a bottom perspective view of an upper pivot base block for use with an upper pivot pin and a pivot door hinge/clamp block for a frameless.glass shower door panel of a shower enclosure according to the invention .. Figure 2 is a top view of the pivot pin base block of Figure 1 Figure 3 is an exploded view of an upper pivot pin, the upper pivot base block of Figures 1 and 2 and a frameless glass door panel hinge/clamp block Figure 4 is a side elevation of the upper pivot pin of Figure 3 assembled within the pivot pin base block of Figures 1 and 2, -6 Figure 5 is a side elevation of assembled components of Figures 1 to 4. Figure 6 is a perspective, fragmentary view of the assembled components of Figures 1 to 5 and part of a frameless glass door panel installed within a shower head and in door-open position. £ Figure 7 is a perspective, fragmentary view of the assembled components of Figures 1 to 6 installed within a shower head and in door-closed position. Referring to the drawings, there is shown both separately and then assembled and installed, three components of the invention used in the assembly and installation of a frameless, glass-panelled pivot door within a shower enclosure of extruded aluminium frame to members and in particular between fixed upper and lower cross frame members comprising respectively a shower head and a shower sill. There is firstly shown in Figures 1 and 2, a generally rectangular-shaped upper pivot pin base block 10 which when installed, has a flat outwardly and upwardly -facing planar top surface, end walls and flat side walls for fixing it into the downwardly-facing square channel of a shower head cross-frame member and as specifically shown in Figure 1, has a convexly-curved (downwardly facing when installed) bottom surface 11 which is provided with a central pivot pin-receiving hole and pair of longitudinally outermost internally-stepped fixing holes 11 a and 11 b each with a lower oval shaped adjustment slot used for positioning and then fixing the block onto and within the channel of a respective shower enclosure cross frame member such as a shower head (see Figures 6 and 7). The convex bottom surface 11 of the upper pivot base block 10 is formed with a pair of identical bevelled door-indexing ramps 12 and 13 formed thereon and extending around the bottom of a central hole forming the lower bore of the upper pivot base block 10 and which project downwardly from and below the convex surface of the block and extend partway along the length thereof. These two ramps 12 and 13 are located in line with and on either side of the central cylindrical pivot pin hole 14 formed within the upper pivot pin base block 10. The central hole 14 of the upper pivot base block 10 ( Figs 1 and 2) extends axially completely through the block but is axially of non-uniform diameter and cross section being internally stepped from above ( as viewed when installed) with a narrow-diameter lower portion forming a lower bore 14a and a wider-diameter upper portion forming an upper bore 14b. Each door 2 0 indexing ramp 12, 13 of the upper pivot base block 10 has a flat top, beveled side walls, inwardly and downwardly-sloping outer end walls and curved inner walls with a radius corresponding to, and as an upward extension of the central hole 14 of the upper pivot base block 10 and these extensions form both a bearing surface a housing for a metal upper pivot pin 15 ( shown in Figures 3 to 7) and the upper pivot base block 10 is preferably made of a synthetic polymeric material such as a resin sold under the registered trade mark CELCON or DURALON. A second upper pivot block 16 is of triangular shape, is formed and functions both as a hinge for a pivot glass door panel and is slotted for clamping it onto the top edge of a glass door panel as an upper hinge/clamp block 16 which also has a concavely-curved upper -7 surface with a central hole for mounting a pivot pin (already pre-mounted into the upper pivot pin base block 10). The upper pivot clamp/hinge block 16 can be made of the same plastic material as the upper pivot pin block or can be made of different material. The upper pivot pin 15 is made of metal and is preferably specially made of corrosion-resistant nickel-plated brass to resist corrosion caused by caustic cleaning agents ( which may also contain free chlorine) and the pin 15 is adapted to be loosely - that is to say slidably and partially- rotatably housed within the upper pivot pin base block 10 as shown in Figures 4 and 5 and is shown partly exposed but largely concealed within the assembled plastic components shown fully assembled in the views of Figures 6 and 7 of the annexed drawings as explained later on. . Referring again to Figures 1 and 2 of the drawings, the central hole 14 of the upper pivot pin base block 10 has a stepped internal cylindrical structure comprising an upper portion or bore 14a of wider diameter than a narrow-diameter lower portion or bore 14b. The upper region 14a of the upper pivot pin hole is designed to loosely house the smooth intermediate shaft portion 15a of the upper pivot pin 15 enabling loose fitting of this pin down into upper and lower open I5 ended and connected bores of the upper pivot block 10 from above and then downwards to project through the hole formed in the lower portion of the block 10 allowing relatively free arcuate movements of the pin to and fro in a limited arc within the upper pivot base block 10 corresponding to opening and closing movements of the door while simultaneously allowing position and a bottom or door-self- closed or indexed position are located in line with and on either side of the central cylindrical pivot pin hole 14 formed within the upper pivot pin base block 10. The central hole 14 of the upper base block 10 extends axially completely through the block and is axially of non-uniform diameter and cross section being internally stepped with a wider-diameter upper portion or bore and a narrow-diameter lower portion or lower bore. Each indexing ramp 12, 13 of the fixed pivot base block 10 has a flat top, beveled side walls, inwardly and downwardly-sloping outer end walls and curved inner walls with radius corresponding to, and as an upward extension of, the central pivot pin hole 14 of the upper pivot base block 10 and these extensions form both a bearing surface and a housing for a metal upper pivot pin 15 (shown in Figures 3 to 7). The upper pivot base block 10 is preferably made of a synthetic polymeric material such as a resin sold under the registered trade mark CELCON or DURALON. A second upper pivot block or pivot hinge/clamp block 16 is mounted over the top edge and adjacent a corner of a glass shower door panel, is of triangular shape and is formed and functions both as a hinge for a pivot glass shower door panel and is slotted for clamping the hinge block onto the glass door panel as the pivot hinge clamp block 16 the upper surface of which has a concavely-curved surface provided with a central hole extending partly thereinto to form a blind bore for non-removably mounting the upper pivot pin 15 therein by force-fitting in an interference fit. The shower door upper pivot clamp/hinge block 16 can be made of the same plastic material as the upper pivot pin (fixed) base block or can be made of different material. The upper pivot pin 15 is made of metal and is preferably specially made of -8- -. ' corrosion-resistant, nickel-plated brass to resist corrosion caused by caustic cleaning agents (which may also contain free chlorine), and the upper pivot pin 15 is adapted to be loosely that is to say slidably and rotatably housed within the upper pivot pin base block 10 as shown in Figures 4 and 5 and is shown partly exposed but largely concealed within the assembled plastic components shown fully assembled in the views of Figures 6 and 7 of the annexed drawings as explained later on. Referring again to Figures 1 and 2 of the drawings, the central hole 14 which extends completely through the upper pivot pin base block 10 has a stepped internal cylindrical structure comprising a lower portion 14a or bore of narrow diameter extending upwards into a wide-diameter upper portion or bore 14b (viewed when in an installed orientation). The upper bore 14b of the central hole of the upper pivot base block is designed to loosely house the wide cylindrical cap portion 15b of the pin 15. Between the cap and bottom end of the pin is a smooth, intermediate cylindrical shaft portion 15a enabling downward slidable fitting of the pin 15 into and through both open-ended and enjoined bores of the upper pivot base block 10 and further enabling the bottom of the pin to be passed further downwards through the bottom of the upper pivot base block 10 to protrude out of the lower bore and out of the bottom of the base block 10 and thence into the upper pivot/clamp block 16 enabling the barbed end of pin 15c to be force-fitted into a central blind bore of the clamp block 16 - which is undersized with respect to the pin - the central blind bore 16a (Fig. 4 ) being pre- formed within the upper surface of the pivot/clamp block 16. This arrangement allows 20 angular to and fro movements of the shower door upper pivot pin 15 within the upper pivot bae block 10 corresponding to opening/rising and closing/falling shower door movements but allowing only limited vertical travel of the pin 15 within the block corresponding to rising opening and falling self-closing movements of the pivot shower door. It will be understood that while the lower end of the captive pivot pin has been described as being barbed it may be formed in any configuration which will enable it to be permanently and non-independently--rotatably fixed within the central hole (blind bore) of the shower door upper pivot clamp block 16. The end portion of the pin may have any number or type of radial projections which are of greater diameter than the shaft of the pin and of greater radial dimensions than the internal diameter or width of the central hole or blind bore of the of the pivot clamp block to enable an interference fit of the pin within the central hole of the hinge/clamp and these projections are preferably made of material which is physically harder than the material of the pivot clamp block but either the projections or the material of the pivot clamp block may be deformable. The upper pivot base block 10 and upper pivot hinge/clamp block 16 may be manufactured of any suitable, durable industrial grade synthetic polymeric resin or plastics material by any suitable technique such as by injection moulding. During installation, any holes of the pivot blocks exposed to view may if desired be -9-.. protected by thin covers of ABS resin ( a synthetic terpolymer of acrylonitrile, butadiene and styrene) electro-chrome plated with a thin layer of chromium. Even though it is compulsory for a fabricator/manufacturer of shower screen to check that the shower screen is manufactured correctly and within the prescribed tolerances the invention provides an additional safety feature by preventing an installed pivotally mounted shower door from falling out of its mount within an overhead fixed frame member.
Claims (16)
1. A captive pivot system for mounting an indexing pivot shower door to a head frame of a shower enclosure wherein an upper pivot pin base block and a lower pivot pin base block are adapted to be fixed respectively within a channel of a shower enclosure head or sill fixed cross frame member installed in a shower enclosure and wherein each fixed pivot base block is operatively connected by an associated door pivot pin to a frameless, glass-panelled, pivot shower door by a respective upper or lower door hinge/clamp pivot block mounted respectively over a bottom or top edge of the panel, and wherein the upper pivot base block has means formed therein associated with means formed on the upper pivot pin to permanently retain the upper pivot pin within the upper pivot base block and also within an associated upper pivot hinge/clamp pivot block wherein the shower door upper pivot base block is formed with a convexly-curved, and when installed, downwardly-facing lower surface for engaging with and disengagement from a concavely-curved and when installed upwardly-facing surface of an associated shower door upper hinge/clamp block mounted upon the door panel, the upper pivot base block being formed with a flat and, when installed, outwardly and upwardly-facing surface for fixing the base block into a channel of a shower enclosure head cross frame member and being formed with a central cylindrical hole which extends axially completely through the base block, the said hole being internally-stepped to provide a wide internal diameter upper bore and a narrow, intemal-diameter lower bore, an upper pivot pin of non uniform diameter being adapted to be placed within the upper pivot base block and housed within the bores thereof and, when installed within a shower recess, being adapted for angular movement within the wide-internal-diameter upper bore and also within the narrow-internal diameter lower bore of the upper pivot base block but being adapted for only limited reciprocating vertical travel within the upper pivot block in correspondence with rising/opening and falling/closing indexing movements of a shower door during opening and closing thereof, to thereby prevent, when installed, the top of the shower door from falling out of the shower enclosure head fixed cross frame member when excessive force is applied to an installed door and to compensate for flexing of the frame and excessive play due to excessive tolerances in dimensions of fixed frame members and a pivot shower door.
2. The system according to claim 1 wherein the downwardly-facing, convexly-curved surface of the upper pivot base block and the upwardly-facing concavely-curved surface of the upper hinge/clamp block are correspondingly-shaped and the upper surface of the upper hinge/clamp block has a central hole extending partly thereinto and a lower end of the upper -11 pivot pin is adapted to be passed completely through the hole of the pivot base block and a lower portion of the upper pivot pin is adapted to be permanently fixed into the said central recess of the of the upper hinge/clamp block by an interference fit and wherein , the lower portion of the upper pin is barbed and oversized with respect to the central hole or recess of the upper hinge/clamp block the central hole or recess of which which is correspondingly undersize with respect to the barbed lower-diameter portion of the upper pivot pin enabling the upper pivot pin to be irremovably force-fitted within the central hole or recess of the upper hinge/clamp block.
3. The system according to claim I or 2, wherein the upper pivot pin has means projecting radially therefrom adjacent at or adjacent the upper end thereof so that when the pin is placed within the base block and the base block is fixed within a channel of the shower recess head frame, the upper pivot pin is loosely retained within the upper base block by engagement with an internal surface of the upper base block formed between junction of the narrow and wide diameter regions of the hole of the upper pivot base block to limit vertical movement of the upper pivot pin within the upper pivot base block.
4. The system according to any one claims 1 to 3, wherein means are provided on or adjacent the downwardly-facing end, when installed, of the upper pivot pin which enable the pin to be non-removably fixed within the central upwardly-facing blind bore of the upper hinge/clamp block and an intermediate portion of the upper pivot pin is a shaft adapted for free rotational movement and vertical reciprocation whereby when a pivot door upon which the upper hinge/clamp block is mounted, is opened the door and upper hinge/clamp block move through an angle and rise up and freely rotate with the upper pin as a unit and separate from the overhead upper pivot pin base block and move at an angle thereto and, when the door is closed, the door and with it the upper hinge/clamp block counter-rotate and fall whereby both hinge/clamp block and pivot pin base block make contact in alignment.
5. The system according to any preceding claim wherein the pivot shower door upper pivot pin is formed of rust and corrosion-resistant metal.
6. The system according to claim 4, wherein the upper pivot pin is formed of bronze or brass.
7. The system according to claim 4 wherein the upper pivot pin is formed of corrosion resistant, nickel-plated brass.
8. The system according to any one of claims 1 to 5 wherein the upper pivot pin base block and its associated glass door panel upper hinge/clamp block are formed of synthetic polymeric material.
9 The system according to claim 8 wherein the upper pivot pin base block and its associated glass door panel hinge/clamp block are formed of CELCON or DURALON resin. -12
10. The system according to any one of claims 1 to 9 wherein the upper pivot pin for the upper pivot pin base block has a flanged uppei end which when installed with the upper pivot pin base block fixed within the channel of a shower head fixed cross frame member is retained for limited vertical movements within the upper pivot base block by contact with a lower vertical motion stop surface or surfaces at the junction of wide and narrow internal diameter regions of the central hole of the upper pivot base block and by contact of the upper surface of the pin head with a horizontal surface of a shower enclosure, head channel cross frame member during opening and closing movements of a pivot shower door to counteract excessive drop-down movements of an installed shower enclosure swing door corresponding to excessive movement of a shower door.
11. The system according to claim 10 wherein the diameter of the upper flanged end or head of the upper pivot pin is less than the internal diameter of a wide-diameter upper region of the hole extending though the upper pivot base block but is greater than the internal diameter of the narrow-diameter lower region of the central hole of the upper pivot base block.
12. The system according to claim 11 wherein the upper pivot pin has a cylindrical portion intermediate its upper or flanged cap end and its lower end.
13. The system according to any one of claims 10 to 12, wherein a terminal or lower end of the upper pivot pin is of circular configuration and is adapted to sit against a circular upwardly-facing internal surface at the bottom of the recess of the upper hinge/clamp block..
14. The system according to any one of claims 10 to 13 wherein a lower portion of the upper pivot pin has radial extensions formed thereon which are oversize frictional and/or deformable means for force-fitting the lower end of the shaft of the upper pivot pin into the upper hinge/clamp block via an undersize central hole and blind bore formed in the upper surface of upper hinge/ clamp bock whereby the pin is non-removably embedded within the upper hinge/ clamp block and does not move independently with respect to the hinge/clamp block when the upper pivot base block, upper pivot pin and upper hinge/clamp block are installed in a frameless glass panel pivot door system within the framework of a shower enclosure.
15. The system according to claim 14 wherein the oversize frictional means of the upper pivot pin is an end portion which is formed with a plurality of axially-deformable, annularly-extending radial projections of greater external diameter than the shaft of the pin and the internal diameter of a central, closed-ended blind hole formed in the shower door pivot hinge/clamp block and the oversize frictional means of the upper pivot pin is/are also undersize with respect to internal diameters of a hole or bore formed in the upper pivot base block to allow the shaft portion only of the upper pivot pin with deformable means projecting therefrom to pass through the lower or narrower-diameter bore of the upper pivot base block to allow the shaft portion only of the upper pivot pin with deformable radial extensions thereon to pass through the base block. -13
16. The system according to claim 14 or 15 wherein the oversize frictional means of the upper pivot pin are undersize with respect to the internal diameters of holes or bores formed in the upper pivot base block to allow the shaft portion only of the upper pivot pin with deformable radial extensions projecting therefrom to be passed through both bores of the upper pivot base block for assembly and installation. Dated this 16th day of February 2016 DIAS ALUMINIUM PRODUCTS PTY.LTD By Our Patent Attorney John Loveluck Davies Of JOHN L. DAVIES *& CO
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2009250990A AU2009250990B2 (en) | 2009-01-12 | 2009-12-17 | Captive Pivot System For Shower Door And Head Frame |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2009900080A AU2009900080A0 (en) | 2009-01-12 | Captive pivot pin and block for shower door | |
| AU2009900080 | 2009-01-12 | ||
| AU2009250990A AU2009250990B2 (en) | 2009-01-12 | 2009-12-17 | Captive Pivot System For Shower Door And Head Frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2009250990A1 AU2009250990A1 (en) | 2010-07-29 |
| AU2009250990B2 true AU2009250990B2 (en) | 2016-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2009250990A Active AU2009250990B2 (en) | 2009-01-12 | 2009-12-17 | Captive Pivot System For Shower Door And Head Frame |
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| Country | Link |
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| AU (1) | AU2009250990B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201402928A (en) * | 2012-07-06 | 2014-01-16 | Leado Door Controls Ltd | Automatic return device for glass door |
| IT201700028857A1 (en) * | 2017-03-15 | 2018-09-15 | Evi S R L | HINGE FOR WINDOWS |
| CN119115260B (en) * | 2024-11-11 | 2025-11-11 | 江苏圣达建设集团有限公司 | Panel cutting device for construction |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5297313A (en) * | 1993-04-14 | 1994-03-29 | Lalique Hinge Co. Inc. | Pivot hinge assembly for glass structures |
| US5613276A (en) * | 1995-12-20 | 1997-03-25 | Franz; George W. | Glass shower door hinge system and method |
| US6161255A (en) * | 1998-08-06 | 2000-12-19 | Chmi | Pressure hinge device for glass door or panel |
| US6643898B1 (en) * | 2002-05-18 | 2003-11-11 | Southeastern Aluminum Products, Inc. | Self-centering pivot door hinge system |
-
2009
- 2009-12-17 AU AU2009250990A patent/AU2009250990B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5297313A (en) * | 1993-04-14 | 1994-03-29 | Lalique Hinge Co. Inc. | Pivot hinge assembly for glass structures |
| US5613276A (en) * | 1995-12-20 | 1997-03-25 | Franz; George W. | Glass shower door hinge system and method |
| US6161255A (en) * | 1998-08-06 | 2000-12-19 | Chmi | Pressure hinge device for glass door or panel |
| US6643898B1 (en) * | 2002-05-18 | 2003-11-11 | Southeastern Aluminum Products, Inc. | Self-centering pivot door hinge system |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2009250990A1 (en) | 2010-07-29 |
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