AU2010201658B2 - Adjustable hinge assembly and method of adjustment - Google Patents

Adjustable hinge assembly and method of adjustment Download PDF

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Publication number
AU2010201658B2
AU2010201658B2 AU2010201658A AU2010201658A AU2010201658B2 AU 2010201658 B2 AU2010201658 B2 AU 2010201658B2 AU 2010201658 A AU2010201658 A AU 2010201658A AU 2010201658 A AU2010201658 A AU 2010201658A AU 2010201658 B2 AU2010201658 B2 AU 2010201658B2
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Australia
Prior art keywords
leaf
door
assembly
hinge
adjustable
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AU2010201658A1 (en
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Nicholas Dean John Mantell
Duncan Mcgregor
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Assa Abloy New Zealand Ltd
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Assa Abloy New Zealand Ltd
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Abstract

An adjustable hinge assembly including: a first leaf element arranged for attachment to one of a door or door frame, a second leaf element arranged for 5 attachment to the other of the door and door frame, and a third intermediate leaf element arranged in between the first and second leaf elements, wherein the third leaf element includes a main body and opposing first and second side portions, wherein the first side portion is in pivotable communication with the first leaf element and the second side portion is in pivotable communication with the 10 second leaf element, the assembly further including: an adjustable movement limiting means arranged to limit pivotal movement in a first direction between the first and third leaf element, and an adjustable locking means arranged to lock the third leaf element against the movement limiting means. 207 1.07 .211 1595 123 \- 201

Description

P/000/11 Regulation 3.2 AUSTRALIA Patents Act 1990 COMPLETE SPECIFICATION STANDARD PATENT Application No.: Application Date: 26 April 2010 Priority Dates: 17 July 2009 (New Zealand Patent Application No. 578506) Applicants: ASSA ABLOY New Zealand Limited 6 Armstrong Road North Harbour Industrial Estate Albany AUCKLAND Address for Service: ELIS|ITERRY Cl- Cullen & Co Level 32, 239 George Street Brisbane, QLD 4000 AUSTRALIA Complete Specification for the invention entitled: "ADJUSTABLE HINGE ASSEMBLY AND METHOD OF ADJUSTMENT" The following statement is a full description of this invention, including the best method of performing it known to me: 1 ADJUSTABLE HINGE ASSEMBLY AND METHOD OF ADJUSTMENT FIELD OF THE INVENTION 5 The present invention relates to an adjustable hinge assembly and method of adjustment. In particular, the present invention relates to an adjustable hinge assembly and method of adjustment, wherein the hinge assembly includes three pivotal leaf elements, and the intermediate leaf element is adjustable. 10 BACKGROUND Adjustable hinge assemblies that are either horizontally or vertically adjustable, or both, are known. 15 Horizontal adjustable hinge assemblies enable the positioning of a door or window, for example, to be adjusted along a virtually horizontal axis so that the distance between the upright portion of the door or window that is nearest to the door or window frame can be adjusted. 20 Some known adjustable hinge assemblies use complex mechanisms to enable adjustment of the hinge in the horizontal direction. These mechanisms can be expensive to manufacture and complex to put together and adjust. Further, some known adjustable hinge assemblies do not provide sufficient 25 structural support for the hinge mechanism at the point of movement when in use, which can result in premature failure of the hinge mechanism- Further, the lack of structural support may result in sagging or movement of the doors or windows and cause damage to the doors or windows when they come into contact with the frame due to misalignment from the sagging or movement. 30 An adjustable hinge assembly by Hoppe et al is disclosed in US patent application US 200810104798. This disclosed hinge assembly is a complex mechanism that includes an adjustment portion that relies on a single adjustable screw for adjustment. The single grub screw used limits the accuracy of 2 adjustment. Further, the resultant hinge assembly does not structurally support the hinge leaf portions of the assembly thus providing excessive stress on the components of the hinge assembly. 5 Reference to any prior art in this specification does not constitute an admission that such prior art forms part of the common general knowledge. It would be desirable to provide an adjustable hinge assembly that is simple to operate, easy to assemble and cost effective to manufacture. 10 It would also be desirable to provide an adjustable hinge assembly that incorporates an accurate adjustment mechanism. It would also be desirable to provide an adjustable hinge assembly that 15 incorporates a leaf element arrangement that provides structural support for the hinge assembly. The present invention aims to overcome, or at least alleviate, some or all of the afore-mentioned problems, or at least to provide the public with a useful choice. 20 SUMMARY OF THE INVENTION According to one aspect, the present invention provides an adjustable hinge assembly including: a first leaf element arranged for attachment to one of a door 25 or door frame, a second leaf element arranged for attachment to the other of the door and door frame, and a third intermediate leaf element arranged in between the first and second leaf elements, wherein the third leaf element includes a main body and opposing first and second side portions, wherein the first side portion is in pivotable communication with the first leaf element and the second side portion 30 is in pivotable communication with the second leaf element, the assembly further including: an adjustable movement limiting means arranged to adjustably limit pivotal movement in a first direction between the first and third leaf element, and an adjustable locking means arranged to lock the third leaf element against the movement limiting means.

3 According to a further aspect, the present invention provides a method of adjusting a hinge assembly that includes a first leaf element arranged for attachment to one of a door or door frame, a second leaf element arranged for 5 attachment to the other of the door and door frame, and a third intermediate leaf element arranged in between the first and second leaf elements, wherein the third leaf element includes a main body and opposing first and second side portions, wherein the first side portion is in pivotable communication with the first leaf element and the second side portion is in pivotable communication with the 10 second leaf element, the method including the steps of: adjusting a movement limiting means to limit the pivotal movement in a first direction between the first and third leaf element, and adjusting a locking means to lock the third leaf element against the movement limiting means. 15 BRIEF DESCRIPTION OF THE DRAWINGS Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which: 20 Figure 1 shows an exploded view of an adjustable hinge assembly according to an embodiment of the present invention; Figure 2 shows an adjustable hinge as it could be installed according to an embodiment of the present invention; Figure 3 shows a plan view of a hinge adjusted to minimise seal gap according 25 to an embodiment of the present invention; Figure 4 shows a plan view of a hinge adjusted so the seal gap is nominal according to an embodiment of the present invention; Figure 5 shows a plan view of a hinge adjusted to maximise seal gap according to an embodiment of the present invention; 30 4 DETAILED DESCRIPTION OF THE INVENTION First Embodiment 5 According to this embodiment, a hinge is described that is adjustable in the horizontal direction to enable the seal gap on either side of a door, window (or other suitable elements that require hinges) to be adjusted. A method of adjusting the hinge is also disclosed. 10 The following embodiment is described with reference to the hinge being attached to a door and door frame. However, it will be understood that the hinge may be used with any other suitable element, such as a window for example, that requires a hinge assembly for use. 15 The adjustment mechanism and method of adjustment provide the means to service doors after installation to help address issues such as, for example, door sag or poorly blocked glazing. The hinge and method of adjustment is particularly relevant to full sized residential or commercial doors, but may equally be applied to other door types or sizes where horizontal adjustment is required during the 20 fitting of the hinge. As described more fully below with reference to the accompanying drawings, the hinge assembly according to this embodiment includes a set of hinge plates or leaf frames (elements) as follows. A frame leaf and door leaf are separated by 25 an intermediate leaf. The leaves are pivotally connected in such a way that they form a 'Z' shape to allow the frame and door leaves to remain substantially parallel to each other when the door is closed. The frame leaf is attached to the intermediate leaf along one edge by a rotating knuckle that is formed as an integral part of the casting of both components. Adjustment is achieved by 30 changing the angle of the intermediate leaf relative to the frame leaf and locking it in position between a jacking screw and a tension screw when the desired level of adjustment has been achieved. The scale of adjustment required is generally small (in the order of 4 - 5mm total maximum adjustment) so the arc made by the 5 intermediate leaf has negligible curvature over that distance (approximately 0.5mm). By adjusting the hinge at the bottom of the door with a larger or smaller seal gap 5 to the hinge at the top of the door, the door can be tilted slightly to overcome any spacing issues, such as door sag for example, on the latching edge. Further, to aid the overall strength of the hinge, the intermediate leaf is nested into the frame leaf so that the vertical load is transferred though the intermediate '10 leaf to the frame leaf across a substantial portion of the leaf, and not just through the intermediate knuckle The following portion of the description describes a single hinge assembly. It will be understood that one or more hinge assemblies may be used to support a 15 door. Figure 1 shows an exploded view of an adjustable hinge assembly 101. The hinge assembly includes three leaf elements, a first leaf element 103 for attachment to a frame, a second leaf element 105 for attachment to a door and a 20 third intermediate leaf element 107 that is pivotally positioned in between the first and second leaf elements. The first leaf element includes a back plate 109 upon which three raised portions are formed; an upper raised portion 111, a central raised portion 113 and a lower 25 raised portion 115. The upper raised portion 111 includes a first securing aperture 117 through which a securing screw (not shown) may pass to attach the first leaf element 103 to a frame (not shown). A corresponding aperture (not shown) is also formed in the 30 back plate 109. Along one side of the upper leaf portion 111 a first upper part 11 9A of a hinge pin receiving portion 119 is formed. That is, a first semicircular cavity is formed to receive a portion of a hinge pin as explained below.

6 Along the side of the central raised portion 113 is formed a second central part 11 9B of the hinge pin receiving portion 119. That is, a second semicircular cavity is formed to receive a portion of a hinge pin as explained below. Further, the central raised portion includes a jacking screw aperture 121 for receiving a 5 jacking screw 123, and a tension screw aperture 125. In this embodiment, the jacking screw aperture does not pass all the way through the central raised portion 113 and through the back plate 109, but stops short. Therefore, the jacking screw 123 can only be adjusted inwards to a maximum 10 depth before the distal end of the screw abuts the internal end surface of the jacking screw aperture. It will be understood however, that as an alternative, the jacking screw aperture may pass through the central raised portion 113 and through the back plate 109 so that the maximum distance the jacking screw can be inserted into the jacking screw aperture is limited by either the head of the 15 jacking screw abutting the jacking screw aperture, or the distal end of the jacking screw abutting the frame against which the first leaf element is attached. Finally, the central raised portion includes a second securing aperture 127 through which a securing screw (not shown) may pass to attach the first leaf 20 element 103 to a frame. The lower raised portion 115 includes a third securing aperture 129 through which a securing screw (not shown) may pass to attach the first leaf element 103 to a frame- A corresponding aperture (not shown) is also formed in the back 25 plate 109. Further, along the side of the lower raised portion, a third lower part 119C of the hinge pin receiving portion 119 is formed. That is, a third semicircular cavity is formed to receive a portion of a hinge pin as explained below. All of the three parts of the hinge receiving portion are aligned so as to be able to receive a straight hinge pin. 30 As can be seen in figure 1, an upper recess is formed in between the upper 111 and central 113 raised portions, and a lower recess is formed in between the central 113 and lower 115 raised portions. The upper and lower recesses are 7 aligned to receive upper and lower limbs of the third intermediate leaf element 107 as explained below. The second leaf element 105 includes a plate 130 formed with three securing 5 apertures 131A, 131B and 131C through which a securing screw (not shown) may pass to attach the second leaf element 105 to a door (not shown), An upper hinge pin receiving portion 133 and a lower hinge pin receiving portion 135 are formed along one side of the plate. Each of the hinge pin receiving portions is formed into a tubular shape for receiving columnar shaped hinge pins 137A and 10 137B. The intermediate leaf element 107 includes a hinge pin receiving portion 139 formed into a tubular shape along one side of the leaf element 107. The hinge pin receiving portion 139 is arranged to receive the hinge pins 137A and 137B via 15 hinge bushes 141A and 141B, Along the opposite side of the intermediate leaf element 107 is formed an integral hinge pin assembly 143 that corresponds to the hinge pin receiving portion 119 on the first leaf element 103. That is, the three semicircular cavities on each of 20 the upper, lower and central parts 119A, 119B and 119C of the hinge pin receiving portion 119 have a diameter that corresponds to (or is slightly larger than) the diameter of the integral hinge pin assembly 143. The integral hinge pin assembly 143 further includes two stop portions 145A and 145B that are arranged to locate within the recesses formed between the upper and central 25 parts of the hinge pin receiving portion 119, and the central and lower parts of the hinge pin receiving portion 119 respectively. Therefore, it can be seen that when the first leaf element 103 and the intermediate leaf element 107 are fitted together by interconnecting the integral hinge pin 143 with the hinge pin receiving portion 119 that the integral hinge pin 143 is free to pivotally move within the 30 cavities formed in between the hinge pin receiving portions 119A, 119B and 119C. Within a central portion of the intermediate leaf element 105 is formed an upper limb 147 that locates within the upper recess of the first leaf element when the 8 first and intermediate leaf elements are locked relative to each other, as explained below. Further, within the central portion of the intermediate leaf element 105 is formed a lower limb 149 that locates within the lower recess of the first leaf element when the first and intermediate leaf elements are locked relative 5 to each other, as explained below. Formed centrally within the central portion of the intermediate leaf element 105 is a tension body portion 151 which includes a tension screw cavity 153 arranged to receive a tension screw 155. The tension screw may pass through the cavity and 10 into the tension screw aperture 125 formed on the first leaf element 103- The tension screw head is formed having a larger diameter than the tension screw cavity 153, and so the tension screw head abuts the inside bevelled walls of the cavity 153 when it is screwed into the tension screw aperture 125. 15 In this embodiment, all of the components are made from stainless steel. It will be understood however that the various components may be made from any other suitable material including non-metals. Figure 2 shows the adjustable hinge as it could be installed for use between a 20 door 201 and a door frame or jamb 203, In this embodiment, the doorjamb 203 includes a cavity for receiving the first leaf element 103 therein. Securing screws (not shown) are then used to lock the first leaf element in position within the cavity by passing the screws through the 25 securing apertures (117, 127 & 129) such that the flat point of the securing screws pushes the first leaf element away from a front wall 207 of the cavity, and so up against a side wall 209 of the cavity to lock the first leaf element into position- That is, the securing apertures have an internal thread for the securing screws- Alternatively, the securing screws may be attached via the securing 30 apertures into corresponding threaded apertures formed within the door jamb. The second leaf element is attached to the door via securing screws passing through the securing apertures 131A, 131B and 131C into a corresponding aperture on the side of the door.

9 As can be seen, the upper and lower limbs of the central portion of the intermediate leaf element 105 are nested within the recesses formed in between the upper, central and lower raised portions of the first leaf element 103. This 5 provides a strong structural support for the hinge assembly as the weight of the door is supported by a substantial portion of the leaf elements when the first and intermediate leaf elements are locked together and the door is open or closed. Further, when the door is in a closed position, an upper limb 211 of the second 10 leaf element is arranged to locate within a recess formed above the upper limb 147 of the intermediate leaf element, and a lower limb 213 of the second leaf element is arranged to locate within a recess formed below the lower limb 149 of the intermediate leaf element. This provides further structural support for the hinge assembly when the door is closed. 15 Figure 2 shows the door in a position after adjustment. The hinge assembly may be adjusted once the first leaf element has been locked in position within the cavity of the door jamb. When the door is in an, at least partially, open position the tension screw 155 may be removed and the intermediate leaf element 107 20 may be pivotally moved via the integral pivot pin 143 and hinge pin receiving portion 109 to provide access to the jacking screw 103. That is, upon moving the intermediate leaf element 107 away from the first leaf element 103, the jacking screw 123 becomes visible- The jacking screw is adjusted to any desirable position in order to limit how close the intermediate leaf element 107 is located 25 relative to the first leaf element 103. This adjustment changes the seal gap, as explained below. Once the jacking screw is adjusted, the intermediate leaf element 107 is pivotally rotated so it abuts the jacking screw- The tension screw is then tightened to lock 30 the intermediate leaf element 107 against the jacking screw, and therefore the first and intermediate leaf elements are locked at a set distance relative to each other.

10 In other word, the jacking screw is arranged to limit pivotal movement in a first direction between the first and intermediate leaf elements, and the tension screw is arranged to lock the intermediate leaf element against the jacking screw and so limit pivotal movement of the intermediate leaf element in a second direction 5 opposite to the first. The adjustable tension screw and jacking screw effectively lock the intermediate leaf in one position by providing a stop on either side of the intermediate leaf. Figure 3 shows a plan view of a hinge as described above adjusted to minimise 10 the seal gap 301 between the door and frame to a distance of approximately 4mm. Figure 4 shows a plan view of the hinge adjusted so the seal gap 301 is nominal. That is, the distance between the door and frame has been adjusted to a 15 distance of approximately 6mm. Figure 5 shows a plan view of the hinge adjusted to maximise the seal gap 301 between the door and frame to a distance of approximately 8mm. 20 Therefore, the hinge assembly as described above provides leaf elements (hinge plates) that are held together rigidly without any backlash. Further, the leaf elements are not reliant on the accuracy of a single screw or grub screw for adjustment, thus providing increased adjustment accuracy. Also, 25 the leaf elements are nested together to significantly increase the strength of the hinge. Further Embodiments 30 It will be understood that the embodiments of the present invention described herein are by way of example only, and that various changes and modifications may be made without departing from the scope of invention.

Claims (15)

1. An adjustable hinge assembly including: a first leaf element arranged for attachment to one of a door or door 5 frame, a second leaf element arranged for attachment to the other of the door and door frame, and a third intermediate leaf element arranged in between the first and second leaf elements, wherein the third leaf element includes a main body and opposing 10 first and second side portions, wherein the first side portion is in pivotable communication with the first leaf element and the second side portion is in pivotable communication with the second leaf element, the assembly further including: an adjustable movement limiting means arranged to adjustably limit 15 pivotal movement in a first direction between the first and third leaf element, and an adjustable locking means arranged to lock the third leaf element against the movement limiting means.
2. The assembly of claim 1, wherein the first leaf element includes a plurality 20 of recesses arranged to receive the main body of the third leaf element therein when the third leaf element is locked with the locking means.
3. The assembly of claim 1, wherein the second leaf element includes a main body for attachment to the door or frame, and the first and third leaf 25 elements are formed such that further recesses are provided on either side of the third leaf element's main body when the third leaf element is in a locked position, wherein the second leaf element's body is arranged to be received within the further recesses when the door is closed. 30
4. The assembly of claim 1, wherein the first, second and third leaf elements are arranged to be nested together when the hinge assembly is attached to a door and the door is closed. 12 The assembly of claim 1, wherein the first and third leaf elements are arranged to be nested together when the hinge assembly is attached to a door and the door is either open or closed.
5
6. The assembly of claim 1, wherein the locking means is arranged to stop pivotal movement in a second direction opposite to the first.
7. The assembly of claim 1, wherein the movement limiting means is adjustably attached to the first leaf element to adjustably limit the pivotable 10 distance between the first leaf element and third leaf element.
8. The assembly of claim 1, wherein the third leaf element includes an aperture through which the locking means is arranged to pass, and the first leaf element includes a receiving means arranged to receive a first distal end of the 15 locking means.
9. The assembly of claim 8, wherein the width of the aperture is less than the width of a second distal end of the locking means to enable the first and third leaf elements to be locked relative to each other. 20
10. The assembly of claim 1, wherein the locking means and movement limiting means are accessible for adjustment when the assembly is attached to a door and the door is at least partially open. 25
11. The assembly of claim 1, wherein the second opposing side of the third leaf element includes a first hinge receiving portion for receiving a first hinge pin, and the second leaf element includes a second hinge receiving portion for receiving the first hinge pin. 30
12. The assembly of claim 1, wherein the first opposing side of the third leaf element includes an integral second hinge pin, and the first leaf element includes a third hinge receiving portion for receiving the second hinge pin. 13
13. A method of adjusting a hinge assembly that includes a first leaf element arranged for attachment to one of a door or door frame, a second leaf element arranged for attachment to the other of the door and door frame, and a third intermediate leaf element arranged in between the first and second leaf 5 elements, wherein the third leaf element includes a main body and opposing first and second side portions, wherein the first side portion is in pivotable communication with the first leaf element and the second side portion is in pivotable communication with the second leaf element, the method including the steps of: 10 adjusting a movement limiting means to limit the pivotal movement in a first direction between the first and third leaf element, and adjusting a locking means to lock the third leaf element against the movement limiting means. 15
14. An adjustable hinge assembly substantially as herein described with reference to any one of the embodiments shown in the accompanying drawings.
15. A method as claimed in claim 13 substantially as herein described with reference to the accompanying drawings. 20
AU2010201658A 2009-07-17 2010-04-26 Adjustable hinge assembly and method of adjustment Active AU2010201658B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NZ57850609A NZ578506A (en) 2009-07-17 2009-07-17 Adjustable hinge assembly and method of adjustment
NZ578506 2009-07-17

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AU2010201658A1 AU2010201658A1 (en) 2011-02-03
AU2010201658B2 true AU2010201658B2 (en) 2015-01-22

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB396889A (en) * 1932-05-11 1933-08-17 James Garth Mitchell Improvements relating to hinges
FR2613756A1 (en) * 1987-04-13 1988-10-14 Aerospatiale Hinge including a central leaf and two lateral leaves
GB2450676A (en) * 2007-04-17 2009-01-07 Heath Samuel & Sons Plc Hinge with selectively lockable intermediate leaf

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB396889A (en) * 1932-05-11 1933-08-17 James Garth Mitchell Improvements relating to hinges
FR2613756A1 (en) * 1987-04-13 1988-10-14 Aerospatiale Hinge including a central leaf and two lateral leaves
GB2450676A (en) * 2007-04-17 2009-01-07 Heath Samuel & Sons Plc Hinge with selectively lockable intermediate leaf

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Publication number Publication date
NZ578506A (en) 2010-08-27
AU2010201658A1 (en) 2011-02-03

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