This International Patent application claims priority from Australian Patent Application No. 2019206038 entitled “A Hinge Joint” filed on 17 Jul. 2019, the contents of which are to be taken as incorporated herein by this reference.
The present disclosure broadly relates to a hinge joint. In a typical application, a hinge joint according to an embodiment of the disclosure may be used with a foldable structure, such as a foldable shelter for emergency accommodation.
Hinge joints are often used to join two or more members in a way which permits one member to move relative to the other member in a particular manner. As a result, hinge joints can be found in many everyday uses such as in building structures, containers, vehicles, and other systems.
One type of hinge joint is a “piano” type hinge joint including a first hinge component (such as a first leaf) fixedly attached to a first member, such as a door, and a second hinge component (such as a second leaf) fixedly attached to a second member, such as a door frame. In such a hinge, the first hinge component and the second hinge component often include one or more knuckles which are intermeshed to provide a channel for receiving a hinge pin therein about which the first hinge component and the second hinge component may rotate when in a connected arrangement.
Unfortunately, such pin based hinge joints may be susceptible to failure, such as by fracturing under certain circumstances. For example, if a deflecting force applied to one of the hinged members results in that member moving or deflecting relative to the other hinged member, a force or stress may be communicated or transferred to the hinge joint. Accordingly, as a result of the rigidity and construction of a pin based hinge joint it is possible that a deflecting force applied to the one of the hinged members may result in hinge joint fracturing. In the event of failure, and because of their complexity, pin based hinge joints may be difficult to replace and/or repair in the event of failure of one or more of the hinge components.
In addition, the configuration and limitations of pin based hinge joints means that they are not well suited to applications which require the hinge joint to provide a sealing effect between the movable members connected by the hinge joint as may be required in installations where the ingress of weather elements through the hinge joint is to be inhibited or reduced.
One approach for providing a hinge joint which allows for a connection between hinged members which allows one hinged member to move relative to the other hinged member in a particular manner, whilst also providing a sealing effect, involves locating and securing a one-piece continuous PVC extrusion between, for example, a door edge and a door frame to provide a sealing effect. One example of such a hinge is the “Centaflex” PVC hinge. In use, the PVC extrusion is screwed or otherwise affixed to the components to be joined as to form the joint therebetween thus making repair and or replacement difficult. Furthermore, such hinges do not address the problem caused by a deflecting force.
It would be desirable to provide an improved hinge joint which addresses at least some of the above deficiencies of current hinge joint arrangements.
A first aspect of an embodiment of the disclosure provides a hinge joint including:
a first hinge component;
a second hinge component; and
a flexible member linking the first and second hinge components to support relative movement of the first hinge component and the second hinge component between an abutting relationship and a non-abutting relationship.
In an embodiment, the flexible member is formed of an impermeable material.
In some embodiments, in the abutting relationship, the first hinge component and the second hinge component intermesh to form a desired alignment therebetween. In such an arrangement, the intermeshing of the first hinge component and the second hinge component resists independent deflection of the first hinge component or the second hinge component without communicating or transferring a load to the flexible member.
In an embodiment, the first hinge component may include a first region having a first profile and the second hinge component may include a second region having a second profile. In this embodiment, during movement of the first hinge component and the second hinge component to form the abutting relationship, the first profile and the second profile may progressively intermesh with each another. Preferably, the first region and the second region are shaped to progressively align the first hinge component and the second hinge component as they progressively intermesh to form the abutting relationship in the desired alignment.
In certain embodiments, one of the first or second profiles includes at least one projecting portion and the other of the first or second profiles includes at least one correspondingly shaped recess for receiving the at least one projecting portion to form the abutting relationship in which the first hinge component and the second hinge component are intermeshed.
In certain embodiments, the flexible member includes a strip including spaced apart and longitudinally extending first and second protuberant edges. The first hinge component may include a first channel for receiving the first protuberant edge and the second hinge component includes a second channel for receiving the second protuberant edge. Each channel may be shaped to retain a respective protuberant edge of the flexible member so as to support the flexible member to link the first hinge component and the second hinge component.
In an embodiment, the flexible member is slidably removable from the first and second hinge components lengthwise for replacement.
In certain embodiments, the hinge joint may further include a sealing member located to form a seal between the first region and the second region for inhibiting ingress of weather elements through the hinge when the first hinge component and the second hinge component are in the abutting relationship. In such an embodiment, when the first hinge component and the second hinge component are in the abutting relationship, the first hinge component and the second hinge component interoperate to substantially simultaneously compress the sealing member and the flexible member.
In an embodiment, the flexible member forms a first barrier for inhibiting ingress of weather elements through the hinge joint and the sealing member forms a second barrier for inhibiting ingress of weather elements through the hinged joint.
A hinge joint according to an embodiment may be used with a foldable sidewall of a foldable structure. Hence, another aspect of an embodiment of the disclosure provides a foldable sidewall including an upper wall member and a lower wall member which are joined using a hinge joint according to the above described first aspect.
Yet another aspect of an embodiment of the disclosure relates to a foldable structure including at least one pair of wall members which are joined using a hinge joint according to the above described first aspect. Examples of foldable structures include foldable transport containers, foldable shipping containers, or foldable accommodation, such as a foldable shelter.
Another aspect of the present disclosure provides a hinge joint including:
a first hinge component including a first region having a first profile;
a second hinge component including a second region having a second profile;
a flexible member linking the first and second hinge components to support relative movement of the first hinge component and the second hinge component between an abutting relationship and non-abutting relationship;
a sealing member located to form a seal between the first region and the second region, said sealing member for inhibiting ingress of weather elements through the hinge joint when the first hinge component and the second hinge component are in the abutting relationship;
wherein during movement of the first hinge component and the second hinge component to form the abutting relationship, the first profile and the second profile progressively intermesh with each another;
wherein the first profile and the second profile are shaped to progressively align the first hinge component and the second hinge component during movement to form the abutting relationship to form a desired alignment therebetween; and
wherein when the first hinge component and the second hinge component are in the abutting relationship, the first profile and the second profile interoperate to compress the sealing member.
Certain embodiments of the present disclosure thus provide a housing system including a shelter module including at least one rigid side wall hingedly connected to a rigid roof and/or a rigid floor using a hinge joint according to the first aspect described above, wherein the shelter modules are foldable to a substantially flat configuration.
Embodiments of the present invention will be discussed with reference to the accompanying drawings wherein:
In the illustrated embodiment, the flexible member 16 includes a single piece extrusion formed from an impermeable material such as Elastollan® thermoplastic polyurethane (TPU). However, it is to be appreciated that the flexible member 16 may be formed from other suitable materials or construction methods. In this respect, other suitable materials may include high density polyethylene (HDPE), natural rubber, synthetic rubber, waterproof fabric (such as a natural or synthetic fabric laminated to or coated with a waterproofing material), and other polymeric materials, such as polyvinyl chloride (PVC), linear low-density polyethylene (LLDPE), polytetrafluoroethylene (PTFE), synthetic fiber, and polypropylene (PP).
In the present case, the first hinge component 12 and the second hinge component 14 include extruded sections, such as extruded aluminium sections, which are affixed, retained, or otherwise secured to a respective structural element, shown here as panels P1, P2, such as a wall panel. However, it is possible that other arrangements and materials could be used. For example, it is possible that the first hinge component 12 and/or the second hinge component 14 could be an integrally formed structural element, such as a door, a frame, a wall, a desk, a shelf, a hatch, a shutter, a panel, a partition or a cover, as non-limiting examples.
As shown in
The first profile 20 includes a projecting portion 26 which, in the present case, continuously extends along the length of the first hinge component 12. However, in some embodiments, it is possible that plural spaced apart projecting portions are provided in the form of a discontinuous arrangement of projecting portions.
The projecting portion 26 shown here tapers inwardly (i.e. narrows) as it projects outwardly from the first region 18. A first shoulder 28 depends from a first edge of the projecting portion 24 in the direction of the flexible member 16. A second shoulder 29 depends from a second edge of the projecting portion 24 in a direction away from the flexible member 16.
As shown in
The recess 31 shown here widens as it depends outwardly from the first region 22. A pair of spaced apart edges 30 are disposed either side of the recess 31 for abutting with a respective shoulder 28, 29 when the first hinge component 12 and the second hinge component 14 are in abutting relationship.
Before continuing further, although the described embodiments involve a first profile 20 including one or more projecting portions 26 and a second profile 24 including one or more recesses 31, it is to be appreciated that other profile configurations arrangements may be possible. For example, in some embodiments, the first and second profiles 20, 24 include any suitable profile which, when the first hinge component 12 and the second hinge component 14 are in an abutting relationship, results in the first hinge component 12 and the second hinge component 14 intermeshing to form a designed alignment.
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Preferably, the channels 35 are sized and configured to allow an extent of positional movement of the respective protuberant edge 36, 38 within the channel 35 whilst retaining the respective protuberant edge 36, 38 therein. In the present case, this is achieved using a channel 35 having an inner diametric region 46 for receiving a respective protuberant edge 36, 38 and a mouth 48 (ref.
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In embodiments, a further improvement in the reduction or prevention of the ingress of weather elements through the hinge joint 10 is achieved by configuring the flexible member 10 so as to forcibly close a potential ingress path between outer surfaces (which, in this example, are surfaces 40, 42 and 44) of protuberant edges 36, 38 and the channel 35 by resiliently biasing the outer surfaces to bear against the channel 35. Such biasing may involve either compressing or tensioning the flexible member 10 between the first 20 and second profile 24 when the profiles 20, 24 are in abutting relationship. In
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During movement of the first hinge component 12 and the second hinge component 14 from a non-abutting (ref.
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In addition to the above, and continuing now with reference to
It is to be noted that although, in the present case, the sealing member 52 is located in a channel 50 extending along a floor region of the recess 31, it is not essential that a channel 50 be so provided as the sealing member 52 may be affixed, retained, or otherwise secured either at a different position on the second hinge component 14, or indeed on the first hinge component 12, to form a sealing arrangement between the first hinge component 12 and the second hinge component 14. That is, the sealing member 52 may be located at any location which permits compression of the sealing member 52 to be achieved and maintained between the first hinge component 12 and the second hinge component 14 when the first hinge component 12 and the second hinge component 14 are in an abutting relationship.
In the depicted arrangement, the hinge joints 10 are thus arranged to permit folding of the respective side walls 805 to or from a folded or collapsed configuration (ref.
Erecting the foldable structure 800 may be achieved by raising or lifting the roof 804 upwardly relative to the floor 802 so that the side walls 805 unfold outwardly. During this movement, the link between the upper wall panel 806 and the lower wall panel 808 provided by the flexible member 16 (ref.
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Throughout the specification and the claims that follow, unless the context requires otherwise, the words “include” and “include” and variations such as “including” and “including” will be understood to imply the inclusion of a stated integer or group of integers, but not the exclusion of any other integer or group of integers.
The reference to any prior art in this specification is not, and should not be taken as, an acknowledgement of any form of suggestion that such prior art forms part of the common general knowledge.
It will be appreciated by those skilled in the art that the invention is not restricted in its use to the particular application described. Neither is the present invention restricted in its preferred embodiment with regard to the particular elements and/or features described or depicted herein. It will be appreciated that the invention is not limited to the embodiment or embodiments disclosed, but is capable of numerous rearrangements, modifications and substitutions without departing from the scope of the invention as set forth and defined by the following claims.
Number | Date | Country | Kind |
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2019/206038 | Jul 2019 | AU | national |
Filing Document | Filing Date | Country | Kind |
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PCT/AU2020/000058 | 6/30/2020 | WO |