NZ598984B - Door Accessory and Method of Use - Google Patents
Door Accessory and Method of Use Download PDFInfo
- Publication number
- NZ598984B NZ598984B NZ598984A NZ59898412A NZ598984B NZ 598984 B NZ598984 B NZ 598984B NZ 598984 A NZ598984 A NZ 598984A NZ 59898412 A NZ59898412 A NZ 59898412A NZ 598984 B NZ598984 B NZ 598984B
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- NZ
- New Zealand
- Prior art keywords
- door
- plate
- accessory
- received
- door frame
- Prior art date
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- 230000000875 corresponding Effects 0.000 claims abstract description 17
- 230000004048 modification Effects 0.000 description 3
- 238000006011 modification reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 230000004301 light adaptation Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
Patent 598984 Disclosed is an accessory for resisting door flexing or a hinge with protrusions to provide door stiffness and rigidity to reduce strain on the locking mechanism. The accessory comprises a first plate and a substantially flat second plate for attachment to a door or door frame respectively. The first plate having at least one projection adapted to be received in a corresponding recess in the second plate and the door or door frame to which the second plate is attached. pectively. The first plate having at least one projection adapted to be received in a corresponding recess in the second plate and the door or door frame to which the second plate is attached.
Description
Received at IPONZ 15 November 2012
Intellectual Property Office New Zealand
PO Box 9241 Marion Square
Wellington 6141
New Zealand
Office use only
IP Numbers:
Current Owner: Jacou Industry Zhongshan Limited
Your Reference: JACZ0PNZ04425
Patents Act 1953
Patent Form No. 5 – Complete Specification
No. 2011901111
Date: 25 March 2011
(a) Door Accessory and Method of Use
We Jacou Industry Zhongshan Limited hereby declare the invention, for which we pray that a patent may be granted
to us, and the method by which it is to be performed, to be particularly described in and by the following statement:
Dr Carolyn Rolls Date: 22 March 2012
Telephone: +613 9870 8200
Email: mail@smoorenburgpini.com.au
Street Address for Service: All Correspondence to:
Smoorenburg Pini Patent & Trade Mark Attorneys Smoorenburg Pini Patent & Trade Mark Attorneys
# 2046 PO Box 515
24B Moorefield Road Ringwood VIC 3134
Johnsonville Australia
Wellington 6037
New Zealand
Received at IPONZ 15 November 2012
DOOR ACCESSORY AND METHOD OF USE
FIELD OF INVENTION
The present invention relates to the field of door furniture or general hardware
for doors.
In one form, the invention relates to a device and method for alleviating or
avoiding problems caused by flexing of doors, particularly overheight doors.
It will be convenient to hereinafter describe the invention in relation to
overheight doors, however it should be appreciated that the present invention is not
limited to that application only and could be applied to a wide range of doors.
BACKGROUND ART
It is to be appreciated that any discussion of documents, devices, acts or
knowledge in this specification is included to explain the context of the present invention.
Further, the discussion throughout this specification comes about due to the realisation
of the inventor and/or the identification of certain related art problems by the inventor.
Moreover, any discussion of material such as documents, devices, acts or knowledge in
this specification is included to explain the context of the invention in terms of the
inventor’s knowledge and experience and, accordingly, any such discussion should not
be taken as an admission that any of the material forms part of the prior art base or the
common general knowledge in the relevant art in Australia, or elsewhere, on or before
the priority date of the disclosure and claims herein.
A relatively simple building feature such as a door requires adjunct fitting such
as hinges, handles, locks and soforth that are commonly referred to as ‘door furniture’ or
‘door accessories’.
Hinges are fundamental door accessories and most doors rely on hinges for
movement. A hinge is a type of bearing that connects two solid objects and allows
rotation of one relative to the other about an axis of rotation. Over the centuries myriad
Received at IPONZ 15 November 2012
different hinges have been developed for the building and furniture industries, amongst
others.
The choice of hinge(s) for a door is based on many factors such as the door
weight, angle of opening/swing, degree of security required and door dimensions.
For example a ‘pivot hinge’ is a hinge with a short fixed shaft or pin upon which
a door panel rotates or swings. Pivot hinges are often used for light doors, such as
furniture cabinet doors, and will close the door panel or hold it open 90 degrees in either
direction. Other types of hinges are typically used for heavier doors and include double-
action floor hinges (often used for swinging restaurant kitchen doors that need to swing
open to either side of the door frame), butt/mortise hinges which are inset (mortised) into
the door and frame, and barrel hinges which include a sectional barrel secured by a pivot
which takes the rotational bearing force.
Security is also a consideration because outward opening doors hung on butt
hinges can be forced open easily by removing the hinge pins and pushing out the door
from the hinge side. This is typically prevented by one of two methods – (i) locking the
hinge pin with a set screw that is accessible only when the door is open, or (ii) using a
hinge that has a security stud that prevents the hinge leaves from separating when the
door is closed, even with the pin removed.
Door dimensions are also important. The number and load bearing capacity of
the hinges should be sufficient to support the door panel for its lifetime. If the hinges are
not properly matched to the door dimensions, the opening and closing movement of the
door panel will eventually cause the hinges to come away from the frame so that the
panel ‘drops’ and does not fit properly within the door frame.
Another problem can arise with very tall, overheight doors. For aesthetic and
other reasons, overheight doors are often hung at the top and bottom with pivot hinges,
about which the door rotates. The large surface area of an overheight door and large
height to width ratio causes them to flex or bow under the pressure of strong air flow or
large air pressure differentials. This can occur for example, to exterior doors during a
storm. Flexing of a door puts enormous strain on the top and bottom pivot hinges,
Received at IPONZ 15 November 2012
potentially causing damage. IT also puts strain on the door latch or lock and if the strain
pushes it out of alignment with the frame, the door becomes difficult to open and close.
Furthermore, when a door flexes, it no longer provides an efficient seal against the
weather and can allow ingress of moisture and dust.
SUMMARY OF INVENTION
An object of the present invention is to provide a door accessory that resists
door flexing.
A further object of the present invention is to alleviate at least one
disadvantage associated with the related art.
It is an object of the embodiments described herein to overcome or alleviate at
least one of the above noted drawbacks of related art systems or to provide a useful
alternative to related art systems.
In a first aspect of embodiments described herein there is provided an
accessory for resisting door flexing, the accessory comprising,
- a first plate and a second plate for attachment to a door or door frame
respectively,
- the first plate having at least one projection adapted to be received in a
corresponding recess in the second plate and the door or door frame to which the
second plate is attached.
In a second aspect of embodiments described herein there is provided an
accessory for resisting door flexing, the accessory comprising,
- a first plate and a second plate for attachment to a door or door frame
respectively,
Received at IPONZ 15 November 2012
- the first plate having at least one projection adapted to cooperate with a
corresponding recess in the second plate and the door or door frame to which the
second plate is attached.
In variations of this embodiment the first plate may have two or more
projections adapted to be received in, or cooperate with, a corresponding recess in the
second plate. In another variation the second plate also includes a projection that is
received in, or cooperates with, a corresponding recess in the first plate.
Typically the projection or projections are elongate, pin-like structures.
However it will be readily apparent to the skilled person that the projections may be of
any convenient shape or cross section and could be generally square, triangle or circular
boss shaped. The corresponding recess in the second plate must be of appropriate size
and shape to receive at least part of the projection and allow sufficient latitude for
horizontal and vertical adjustment of the plates during installation. This is necessary
because door frames/door jambs and doors are never perfectly vertical, particularly with
respect to bifold doors. Doors must be adjusted relative to the door frame/jamb to allow
for misalignments and ensure optimal operation of the door. For example, when the
projections comprise pins, preferably they will be up to 10mm in length, thus allowing
about 6mm of sideways adjustment.
In a preferred embodiment, the first plate or the second plate of the accessory
may include another structure such as a hinge barrel, even though the accessory does
not function as a hinge. This makes the accessory look consistent and uniform with the
other hinges installed on the door. Optimally the first plate and second plate will be
affixed to the door or door frame by screws. The plates may be provided with the same
hole patterns as the hinges on the door thus allowing the installer to use the same hinge
jig to set up a new door, or retrofit the accessory to an existing door. Alternatively, if the
hinge jig cannot be used, the accessory can be installed and the door closed slowly to
allow the projections to score the frame slightly to indicate where the second plate should
be located.
One or more of the accessories according to the present invention can be
installed at any convenient position along the edge of a door.
Received at IPONZ 15 November 2012
Because the accessory can be quickly and easily installed, there is greater
accuracy and efficiency of installation. The first plate and second plate may be attached
to the door or door frame by any convenient means – typically metal screws.
In yet a further aspect of embodiments described herein there is provided a
method of installing the accessory comprising the steps of,
- attaching the first plate to a door or door frame,
- attaching the second plate to a corresponding door frame or door,
such that at least one projection on the first plate cooperates with, or is received in
a corresponding recess in the second plate and the door frame or door to which the
second plate is attached.
The present invention further provides a system for resisting door flexing, the
system comprising
- a first plate for attachment to a door or door frame,
- a second plate for attachment to a corresponding door frame or door,
wherein the first plate has at least one projection adapted to cooperate with, or be
received in a corresponding recess in the second plate and the door or door frame to
which the second plate is attached.
Other aspects and preferred forms are disclosed in the specification and/or
defined in the appended claims, forming a part of the description of the invention.
In essence, embodiments of the present invention stem from the realization
that the use of projections will counter flexing or bowing of the door by restricting its
forward movement once the pins hit the second plate.
Received at IPONZ 15 November 2012
Advantages provided by the present invention comprise the following:
Minimising or eliminating bowing or flexing of a door in response to air flow
or pressure differential,
Reduced mechanical stress on the hinges and other door accessories and
the door system as a whole,
Improves or maintains weather sealing by resisting door flexing and
therefore minimising weather ingress,
suitable for fitting to new doors or retrofitting to existing doors,
can be applied to many different types of doors.
Further scope of applicability of embodiments of the present invention will
become apparent from the detailed description given hereinafter. However, it should be
understood that the detailed description and specific examples, while indicating preferred
embodiments of the invention, are given by way of illustration only, since various
changes and modifications within the spirit and scope of the disclosure herein will
become apparent to those skilled in the art from this detailed description.
BRIEF DESCRIPTION OF THE DRAWINGS
Further disclosure, objects, advantages and aspects of preferred and other
embodiments of the present application may be better understood by those skilled in the
relevant art by reference to the following description of embodiments taken in conjunction
with the accompanying drawings, which are given by way of illustration only, and thus
are not limitative of the disclosure herein, and in which:
Figure 1 illustrates a perspective view of one embodiment of the accessory of
the present invention;
Received at IPONZ 15 November 2012
Figure 2 illustrates a front view (Figure 2a) and an end view (Figure 2b) of the
embodiment shown in Figure 1; and
Figure 3 illustrates a perspective view of a further embodiment of the
accessory of the present invention.
DETAILED DESCRIPTION
In a preferred embodiment of the invention as shown in Figure 1 the accessory
for resisting door flexing comprises a first plate (1) and a second plate (3) for attachment
to a door or door frame respectively. The first plate (1) having two projections (5a,5b)
adapted to be received in or cooperate with corresponding recesses (7a, 7b) in the
second plate (3) and the door or door frame to which the second plate is attached. In
this embodiment the recesses (7a,7b) comprise elongate U-shaped sections cut out of
the second plate (3) however it will be apparent to the skilled person that the recesses
could have other conformations such as channels or gutters.
The working relationship between the projections and the recesses is better
depicted in the embodiment of Figure 3, in which the first plate (1) forms part of a
bracket. In these embodiment the first plate (1) supports a hinge barrel (9) having three
sections or ‘knuckles’. The conformation or appearance of the hinge barrel would be
chosen to match the conformation or appearance of the other hinges on the door for
uniformity of appearance.
In this embodiment the first plate (1) and second plate (3) are intended to be
affixed to the door or door frame by screws. The plates (1,3) are provided with screw
holes (11a,b,c,d and 13a,b,c) having the same hole patterns as the hinges on the door
(not shown) thus allowing the installer to use the same hinge jig to set up a new door, or
retrofit the accessory to an existing door.
While this invention has been described in connection with specific
embodiments thereof, it will be understood that it is capable of further modification(s).
This application is intended to cover any variations uses or adaptations of the invention
following in general, the principles of the invention and including such departures from
Received at IPONZ 15 November 2012
the present disclosure as come within known or customary practice within the art to
which the invention pertains and as may be applied to the essential features
hereinbefore set forth.
As the present invention may be embodied in several forms without departing
from the spirit of the essential characteristics of the invention, it should be understood
that the above described embodiments are not to limit the present invention unless
otherwise specified, but rather should be construed broadly within the spirit and scope of
the invention as defined in the appended claims. The described embodiments are to be
considered in all respects as illustrative only and not restrictive.
Various modifications and equivalent arrangements are intended to be
included within the spirit and scope of the invention and appended claims. Therefore,
the specific embodiments are to be understood to be illustrative of the many ways in
which the principles of the present invention may be practiced. In the following claims,
means-plus-function clauses are intended to cover structures as performing the defined
function and not only structural equivalents, but also equivalent structures.
“Comprises/comprising” and “includes/including” when used in this
specification is taken to specify the presence of stated features, integers, steps or
components but does not preclude the presence or addition of one or more other
features, integers, steps, components or groups thereof. Thus, unless the context clearly
requires otherwise, throughout the description and the claims, the words ‘comprise’,
‘comprising’, ‘includes’, ‘including’ and the like are to be construed in an inclusive sense
as opposed to an exclusive or exhaustive sense; that is to say, in the sense of “including,
but not limited to”.
Received at IPONZ 15 November 2012
Claims (6)
1. An accessory for resisting door flexing, the accessory comprising: - a first plate and a substantially flat second plate for attachment to a door or door frame respectively, - the first plate having at least one projection adapted to cooperate with a corresponding recess in the second plate and the door or door frame to which the second plate is attached.
2. An accessory according to claim 1 wherein the projection is adapted to be received in the corresponding recess.
3. A method of installing the accessory of claim 1 or claim 2 comprising the steps of: - attaching the first plate to a door or door frame, - attaching the second plate to a door frame or door, such that at least one projection on the first plate cooperates with, or is received in a corresponding recess in the second plate and the door frame or door to which the second plate is attached.
4. A system for resisting door flexing, the system comprising an accessory according to claim 1 or claim 2.
5. A door assembly comprising: - a door and corresponding door jamb, - hinges for operatively connecting the door and door jamb, Received at IPONZ 15 November 2012 - an accessory according to claim 1 or claim 2 for resisting flexing of a door relative to the door jamb, and - a latch for attachment to a door and cooperation with a corresponding strike plate.
6. An accessory as claimed in claim 1 or claim 2 and as herein described with reference to the drawings.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2011901111 | 2011-03-25 | ||
AU2011901111A AU2011901111A0 (en) | 2011-03-25 | Door Accessory and Method of Use |
Publications (2)
Publication Number | Publication Date |
---|---|
NZ598984A NZ598984A (en) | 2013-02-22 |
NZ598984B true NZ598984B (en) | 2013-05-23 |
Family
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