NZ763257A - Entry system - Google Patents

Abstract

The present invention relates to a system for entering and exiting a mobile unit, for example a demountable building, home or recreational vehicle, more particularly a system for entering and exiting the mobile unit including more than one door.

Description

Patent No. # - Complete Specification No. Date: 3 April 2020 ENTRY SYSTEM We, Camec Pty Ltd, of 47-63 Remington Drive, Dandenong South VIC 3175, Australia, 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 ENTRY SYSTEM Field of the Invention The present invention relates to a system for entering and exiting a mobile unit, for example a demountable building, home or recreational vehicle, more particularly a system for entering and exiting the mobile unit including more than one door.

Background of the Invention Demountable buildings, homes and recreational vehicles are becoming increasingly popular. This includes self-driven vehicles, such as motorhomes, as well as towed trailers (for example caravans and camper vans). At the same time, demountable buildings, homes and recreational vehicles are also being equipped with more features, so that people can travel with more of the comforts of traditional homes. However, the mobile nature of the unit poses some challenges.

In particular, for each part or parts that are used in the construction of such units, weight is an important consideration. The heavier the parts, the heavier the vehicle, the more difficult and less economical it is to move. Therefore, it is desirable to keep the weight of the unit to a minimum, despite the addition of more amenities and other equipment or accessories to the mobile unit.

Movable units are assembled/disassembled, located/re-located in a variety of locations and therefore required to be adapted for a variety of conditions and climates ranging from desert heat to snowfields and any more temperate conditions in-between. Those climates give rise to environments that may include dust, sand, snow, water or other undesirable contaminates for the interior of the movable unit. Therefore, it is desirable to have airtight and watertight sealing, especially doors and windows, to prevent or minimise the entry of such contaminates into the mobile unit when closed or locked.

Safety and security is also an important consideration. For security purposes, it is desirable to have good visibility from inside the mobile unit to the outside. Ventilation is also an important consideration to allow airflow into and out of the mobile unit, particularly when the mobile unit is closed or locked.

The present invention aims to at least ameliorate one or more of the disadvantages of conventional movable unit entry, or at least provide a commercial alternative to existing entry for movable units.

There exists a need to overcome, or at least alleviate, one or more of the difficulties or deficiencies associated with the prior art.

Summary of the Invention In one aspect, the present invention provides an entry system for a movable unit, including a frame that defines an opening into the unit, a first door assembly for opening and closing, a second door assembly for opening and closing, wherein: the first door assembly and the frame are configured to define a first seal when in selectively close contact; and the second door assembly is configured so as to rest within the first door assembly and define a second seal when in selectively close contact with the first door assembly such that the surface of the second door and a periphery of the first door assembly are essentially coplanar when the first door assembly and second door are in selectively close contact.

As used herein the ‘movable unit’ includes demountable buildings, homes, and recreational vehicles (RV) such as but not limited to a camper trailer, house trailer, camper, caravan, mobile-home or similar type of vehicle or trailer. The terms mobile unit and movable unit may be used interchangeably herein. Preferably, the movable unit is a recreational vehicle. More preferably, the recreational vehicle is a caravan.

As used herein the ‘frame’ is a trim frame profile by which the inner periphery of the frame defines an opening or entry into or exit out of the movable unit and for retaining the first door assembly. The depth of the frame may extend from the interior of the movable unit to an outer surface of the movable unit.

Preferably, the outer periphery of the first door assembly, the outer periphery of the second door assembly and the outer periphery of the frame are essentially coplanar when in selectively close contact.

The frame may be fixed to the mobile unit by a series of fasteners such as rivets, bolts or screws. Alternatively, the frame is integral to the movable unit. According to this aspect, the frame and each of its components are incorporated into the mobile unit’s body so as to allow the hanging of the first door assembly and second door from the integral frame.

The frame maybe of suitable size and shape to accommodate door(s), window(s) or other means of entry into or out of the movable unit. Preferably, the frame will accommodate more than one door.

The frame may include without limitation a series of recesses, rebates, ridges, or any other suitable means so as to accommodate the fixing or hanging of one or more doors.

A frame with two radiused corners is referred to as 2RC. A frame with 4 radiused corners is referred to as 4RC. A frame with all square corners is referred to as 4SQ. Therefore, the frame could be any combination of radiused and square corners. Common configurations include 2RC, 4RC or 4SQ shape.

The frame may be manufactured from lightweight non-flexible or robust materials, such as, aluminium or uPVC (plastic). Preferably, the frame is manufactured from aluminium.

The frame may be constructed in a single piece, such as moulded, extruded, bent, and/or formed into a single piece.

Alternatively, the frame maybe formed from multiple pieces then assembled. For example, the frame may consist of four radiused corner pieces, with two pairs of parallel sides that are then assembled. In another example, the frame may consist of two radiused corner pieces, with two pairs of parallel sides that are then assembled.

When assembled the pieces are connected together by any suitable means, for example by welding, adhesive, screws, rivets or snap-lock mechanism. Preferably, the pieces are connected using fasteners, such as rivets, bolts or screws.

The square corners of the frame may further include corner stakes affixed to the frame by fasteners, such as bolts, screws or rivets. The frame may include two corner stakes at bottom of the frame, two corner stakes at the top of the frame or four corner stakes in all corners. The corner stakes are preferably right angled so as to reinforce and/or tie the sides of the frame together. The corner stakes provide a continuous seal when the first door assembly is closed against the frame.

Preferably, the corner stakes are a triangular block with a protrusion, with one corner being at a suitable angle, preferably right angled, to fit snug into respective corner of the frame and with the inner side being curved to accommodate the respective radial corners of the second door assembly. This provides a flat sealing surface for the first assembly door to form a continuous seal when closed.

The frame may further include fixing points or recesses to allow for the fitting of a blind unit and/or accessory rail.

As used herein the ‘first door assembly’ is meant a selectively openable barrier so as to allow objects or people to enter into or exit out of the mobile unit.

The first door assembly may without limitation be a uniform construction, i.e., a single piece manufactured from, for example, aluminium, stainless steel fiberglass, laminate, timber, treated paper acrylic or other such common construction materials known to mobile unit manufacturers or mobile unit accessory manufacturers. The first door assembly may also include a window and/or vent.

Preferably, the first door assembly is shaped to fit the frame or trim.

In one embodiment, the first door assembly is a door frame with a panel insert(s) or infill(s).

The panel insert(s) or infill(s) may be such as a mesh or other lightweight material.

Preferably, the infill is a transparent or translucent to allow light to pass into and out of the mobile unit when the door is in the closed position. In addition or alternatively the infill or insert may be a mesh or similar material to allow airflow such as a mesh screen panel. The insert may act as a security screen to prevent intrusion and/or insect screen and/or allow airflow when in the first door assembly is in the closed position. Alternatively, the infill maybe suitable glazing material for use in a mobile unit, such as laminated acrylic or glass.

In a preferred embodiment, the first door assembly is a security door including a frame with a wire mesh panel, more preferably an aluminium security door with an Aluminium extrusion with a stainless steel mesh infill.

As used herein, a ‘second door assembly’ is a second selectively openable barrier so as to allow objects or people to enter into or exit the mobile unit.

The second door assembly may without limitation be a uniform construction that is in a single piece manufactured from, for example, aluminium, stainless steel, fiberglass, laminate, timber, treated paper acrylic or other such common construction materials known to movable unit manufacturers or movable unit accessory manufacturers. Preferably the second door assembly is a laminate or fiberglass. The material may be selected to match the exterior of the mobile unit.

Preferably the second door assembly incorporates a window or windows. The window(s) is manufactured from a suitable glazing material for use in a mobile unit, such as laminated acrylic or glass, more preferably acrylic. The window may be transparent, semi-transparent or tinted to allow light to pass into and out of the mobile unit when the door is in the closed position. The window maybe selectively openable. In one embodiment, the window may be of suitable size to be incorporated into the whole door assembly, ie a full-length window.

Preferably the second door assembly incorporates a vent or vents. The vent maybe formed from slats or a mesh or any other means to allow ventilation. The vent maybe selectively openable, such as but not limited to a louvre/shutter or hinge mechanism. More preferably, the vent is formed from a mesh.

More preferably, the second door assembly incorporates both a window and a vent.

Alternatively, the second door assembly incorporates a full-length window.

In a preferred embodiment, the second door assembly is smaller than the first door assembly such that it rests entirely within the first door assembly and is coplanar when the second door is selectively closed.

As used herein a seal or seals, seals the first door assembly to both the frame and second door assembly when the doors are selectively closed.

A seal is formed when a surface that abuts another surface so as to prevent or prohibit the entry into or exit of liquids, gasses or other undesirable contaminants, such as dust and/or water, into the mobile unit. Ideally, the seal provides air tightness and/or water tightness when the doors are selectively closed. The surface where the seal is formed is a sealing surface.

Preferably, the first door assembly incorporates a first sealing surface at its periphery.

More preferably, the first door assembly incorporates a second sealing surface at its periphery. More preferably, one or both sealing surfaces are defined as a single continuous seal on either side of the first door assembly.

Preferably, the seal or seals are located at a distance from the periphery of the first door assembly, so as when the first door assembly is in selectively close contact with the second door assembly and frame, the seal is not visible when facing the aspect of the second door assembly and/or frame. The seal or seals may be integral to second door assembly and/or frame.

The seal maybe formed by use of a physical seal or sealant or a combination of both.

Preferably the seal is a physical seal.

Such physical seals may be made of any flexible, semi-flexible or plastic material.

Preferably, the physical seal or seals may be made from rubber or a rubberised material or a brush/felt material. More preferably, the physical seal or seals is a rubberised pinch weld seal.

Preferably, the physical seal is a continuous seal such that it is formed from a single piece or minimal pieces i.e. with no or minimal joins, so as to provide a continuous seal. This is most preferably achieved by radial corners.

In this embodiment, the seal is a 4RC shape to avoid any right angled corners to achieve a continuous seal. So, for example when the trim frame has square corners, corner inserts are used to ensure that the radial corners of the seal in the first door assembly rests against a surface to ensure a suitable seal is formed.

In one embodiment of the invention the physical seal is at both the first and second sides of the first door assembly, though the skilled reader would note that the seal could readily be attached to the relevant surface of the second door assembly or frame so as to create a commensurate seal.

In one embodiment the physical seal is recessed into a channel in a metal substrate, preferably in the first door assembly, though the skilled reader would note that the channel could be formed in the frame.

As used herein a “hinge assembly” assembly includes multiple components, including a first connecting means, a second connecting means, a third connecting means and a rod or pin.

The hinge assembly attaches or hangs both the first door assembly and second door assembly to the frame.

In this specification, a pin and rod of the hinge assembly may be used interchangeably.

Preferably, the pin is unitary.

In a preferred embodiment, the first door assembly and second door assembly are each joined to the frame by a hinge assembly including a first connecting means, a second connecting means, third connecting means and a pin, wherein the first and second connecting means are both coupled to third connecting means by a pin. The pin allows the first door assembly and second door assembly to rotate about the pin in the same direction to open and close.

More preferably, the second connecting means has accommodation to straddle the first connecting means such that the first connecting means rests under the second connecting means when the first door assembly is in selectively close contact with the second door assembly.

More preferably the hinge assembly is a hinge within a hinge configured so as not to interrupt either or both the first seal or second seal when formed. The hinge(s) attached to the second door assembly having a recess for the hinge(s) of the first door assembly and the frame hinge affixed to either side of the other hinges to allow for a pin between all of the hinge parts so as to allow selective opening of each door with the application of torque.

To illustrate, when the second door assembly is resting in the first door assembly, the first door may be opened without interrupting the second seal formed when the second door assembly is resting within the first door assembly. Additionally, the second door assembly can be opened without interrupting the first seal formed between the first door assembly and the frame. In other words, one of the doors can be opened whilst the other remains closed. Additionally, both doors can be opened or closed at the same time.

Each component in the hinge assembly maybe formed from injection mould polymer or any other suitable material.

The entry for a mobile unit may further include a locking mechanism to secure one or more of the doors in a closed position.

The locking mechanism selectively accommodates separation of the first door assembly from the second door assembly and selective connection of the first door assembly and second door assembly to allow entry or exit from the movable unit by application of a rotational force to the second door only.

The locking mechanism may be a key lock. However, locking mechanisms without a key are contemplated, including for example a keypad or remote. The keypad may be a mechanical or electronic keypad.

The keypad is preferably affixed onto the first door assembly, but is accessible to the exterior of the mobile unit.

The entry for a mobile unit may also include a blind unit. Preferably, the blind unit is affixed to the entry system so that it is positioned internally within the mobile unit. The blind unit may optionally also include a pelmet or covering means.

The blind unit may be removably fixed to the entry system, preferably by a series of screws, bolts or rivets. Alternatively, the blind unit may be integral to the first door assembly. When integral to the entry system, the first door assembly may additionally include channels so as to track the blind up and down the door. This ensures the blind remains against the door when selectively opened and closed.

Preferably, the blind unit includes a single blind. However, additional blinds may also be included.

The blind included in the unit maybe any suitable blind, preferably a roller blind. Alternative blinds are also contemplated, including without limitation venetian or roman blinds.

Typically the blind will be manually operated by a side chain or rope, or other suitable mechanism. However, the blind unit may incorporate an electronic or battery operated system to enable the blind to be operated remotely.

The blind may be manufactured of any suitable material that is commonly used for blinds so as to be used for privacy and/or blockout of external heat and/or light as desired.

The entry for a movable unit may further include at least one accessory rail.

The accessory rail is formed of any other resilient and suitably lightweight materials, such as aluminium or plastic. The accessory rail may be lazer cut or moulded.

The accessory rail maybe affixed to the first door assembly by common fasteners, such as screws, bolts or rivets or other fixing means or adhesives. Preferably, the accessory rail is affixed horizontally to the first door assembly. Preferably, the accessory rail may be affixed by a series of screws, bolts or rivets.

Preferably, the accessory rail has a mating interface with a series of rebates so as to accept one or more accessory units with a corresponding protrusion. The rebates on the mating interface are spaced so as to minimise movement of the accessory units when attached to the rail(s). The accessory units may be an accessory that can be attached or hung directly to the rail, for example a tool or utensil (such as a broom or other cleaning tool) or a unit suitable for holding such tool, for example a vessel, cup, clamp, hook, clip etc that are able to receive, contain or hold weighted objects by cantilevering the weight of that object against the anchoring of the hanging rail.

In this specification, the term ‘comprises’ and its variants are not intended to exclude the presence of other integers, components or steps.

In this specification, reference to any prior art in the specification is not and should not be taken as an acknowledgement or any form of suggestion that this prior art forms part of the common general knowledge in Australia or any other jurisdiction or that this prior art could reasonably expected to be combined by a person skilled in the art.

For the purpose of example, numerous specific details are set forth in the following description in order to provide a thorough understanding of the present invention. The present invention may be practiced according to the claims without some or all of these specific details. For the purposes of clarity, technical material that is known in the technical fields related to the invention has not been described in detail so that the present invention is not unnecessarily obscured.

To provide a clear description of the present invention, terms such as “first”, “second”, “outer” and “inner”, “periphery” “within” or “coplanar” have been used to describe the entry for the movable unit. This terminology is used with respect to the orientation of the entry when installed. Typically, the entry will be installed such that the second door assembly is located on the outer side of the movable unit. This orientation will be understood not to limit the scope of the invention.

The present invention will now be more fully described with reference to the accompanying examples and drawings. It should be understood, however, that the description following is illustrative only and should not be taken in any way as a restriction on the generality of the invention described above.

Brief Description of the Drawings/Figures Figure 1 is an exploded orthographic view of an entry system for a movable unit including (from left to right) an accessory rail with accessory units, a blind/shade, trim frame, first door assembly, second door assembly with latch assembly and hinge assemblies according to an embodiment of the invention.

Figure 2 is an orthographic view of the 2RC trim door frame with seal according to an embodiment of the invention. A detailed view shows the fastening the square corners by a series of rivets and a right angled hold down bracket.

Figure 3 is a orthographic view of a 4RC trim frame of the door entry for a movable unit according to an embodiment of the invention. Cross-sections of the frame at points A-A and B-B are also shown.

Figure 4 shows details of different sections of the trim frame of Figure 3 according to an embodiment of the invention. The radiused corner is shown to be assembled from different pieces. Detail A shows holes in the trim frames for fixing to the entry system to the mobile unit. Detail B shows the recess in the trim frame to accommodate the hinge assembly.

Figure 5 is an orthographic view of trim door frame corner stakes when fitted into the trim frame according to an embodiment of the invention.

Figure 6 is an exploded orthographic view of first door assembly of the entry for a movable unit, including (from left to right) an outer door seal, security mesh, security frame assembly with 2 radius upper corners and 2 square lower corners, security door seal, and pinch weld according to an embodiment of the invention; Figure 7A shows the second door assembly according to an embodiment of the invention.

Figure 7B is an exploded view of second door assembly, including (from left to right) vent assembly, acrylic panel, window trim, and door according to an embodiment of the invention. Detailed view show catch pin and receiver fastened to the door by screws; and Figure 8 shows the hinge assembly according to an embodiment of the invention (A) shows an exploded view of the hinge assembly (from left to right) the third connecting means, first and second connecting means, pin and third connecting means; (B) shows the hinge assembly when fully assembled.

Figure 9 is an orthographic view of first connecting means of the hinge assembly according to an embodiment of the invention; Figure 10 is an orthographic view of second connecting means of the hinge assembly according to an embodiment of the invention.

Figure 11 is an orthographic view of third connecting means of the hinge assembly according to an embodiment of the invention; and Figure 12 is an orthographic view of hinge pin of the hinge assembly according to an embodiment of the invention; and Figure 13 is an orthographic view of the accessory rail according to an embodiment of the invention.

Detailed Description of the Embodiments Referring to Figure 1 there is shown an exploded view of the entry system including (from left to right) an accessory rail (01) with accessory units (02), a blind unit (03) both fitted rear of the frame (04) according to an embodiment of the invention. The first door assembly (05) is a security door with a mesh infill that fits within the frame (04) and second door assembly (06) is a 4RC exterior door that fits within the first door assembly (05). The first and second door assemblies are affixed to the frame with 3 hinge assemblies (07). The second door assembly (06) includes a laminate window (08), vent (09) and latch assembly (10). The second door assembly has a series of holes to accommodate the hinges (11) and holes for the latch assembly (12). When assembled, the outer periphery of the first door assembly (05), the outer periphery of the second door assembly (06) and the outer periphery of the frame (04) are essentially coplanar when in selectively close contact.

Referring to Figure 2 there is shown the frame (04). In this embodiment, the frame is designed to be fitted or integrated into a mobile unit at the time of construction/manufacture, however the frame could also be for after market fitting.

In this embodiment, the frame is a 2RC frame with rounded/radius upper corners (20), and 2 square corners though it could be constructed with lesser radiused or right angled (or squared) corners (eg 4SQ) or all radiused corners (eg 4RC). The frame in this embodiment may be manufactured from extruded aluminium, but may be manufactured from other materials.

The frame provides the structure and fixing points for the door assembly units into the mobile unit, preferably a caravan body.

In this embodiment, the frame is constructed in multiple parts. The frame has a right angled bracket (22) which fixes the frame body (24) to the frame base (23) by a series of screws or rivets (25). The frame has holes and rebates to allow for fitting of hinges. The frame has a lip (26) which provides a surface for which the first door assembly may seal against. An additional seal (not shown) may be affixed to this surface or, on an accommodating surface on the first door. An optional trim (27) or gap trim on the inner surface of the frame is also shown.

Referring to Figure 3 there is shown an alternative embodiment of the invention in which the trim frame is configured with four rounded corners (4RC). Figure 4 shows details view of Figure 3. Detail A shows a series of holes where the frame is affixed to the mobile unit.

Detail B shows a recess to accommodate the hinge assembly.

Referring to Figure 5 there is shown details a view of corner stakes (50) when affixed to the frame by two gauge screws (51). Each corner stake is a right angled triangular block with the inner side being curved (52). The right angle sits snug in the frame corner. The curved edge (52) accommodates a corresponding radial corner of the first door assembly. There is also a protrusion that this provides a flat sealing surface for the first door assembly to seal against.

Referring to Figure 6 there is shown an exploded view of the first door assembly (05) according to an embodiment of the invention. The first door assembly in this embodiment is a security door, having a mesh screen panel (60) fitted into the door frame (61). The door frame is constructed in 8 parts being 4 corner parts (62), with 4 edges (63) (two parallel pairs). The first door assembly is configured to snug fit into the frame (04), not shown in Figure 6.

The first door assembly has a continuous seal at its outer edge (or periphery) of the mesh (64) comprised of rubber facing the second door assembly and a sealing means by way of a rubberised continuous seal on the inner side of the frame (65).

The first door assembly additionally has a pinch weld rubberised seal on the inner side of the door assembly (67). The frame of the first door assembly contains a lip (66) between the mesh and the outside surface. The lip accommodates the second door assembly (06), such that the second door is able to be fitted entirely within this lip (66) and can sit flush with the frame. The frame of the first door assembly has holes to accommodate screws or rivets for the fitting of the hinge assemblies.

Referring to Figure 7 there is show the second door assembly (06). The second door assembly is an outer or exterior door (70) made of high pressure laminate, preferably the outer door is scratch impact and chemical resistant. The materials of the outer door are interchangeable and can be colour matched to the external material of the mobile unit. The outer door has a vent (09). The door also contains a laminated window (08) made from an acrylic panel. A rubberised seal surrounds the window (71). The door has holes (72) to accommodate screws or rivets for the fitting of hinges. The door also has a rebate (73) for the fitting of a lock, or in this embodiment a latch fitting.

Referring to Figure 8 there is shown a hinge assembly (07) according to an embodiment of the invention, including a first connecting means (80) of Figure 9, a second connecting means (81) of Figure 10, third connecting means of Figure 11 (82) and rod or pin of Figure 12 (83) in a deconstructed manner, but so as to demonstrate their relative position and size to one another in the hinge assembly.

Figure 9 shows the first connecting means (80) which is a component of a hinge assembly.

In this embodiment, the hinge part is made from injection mould polymer and has fixing points (90) so as to fix the hinge to the first door assembly (being a security door in this embodiment) by a series of screws or rivets. This fixing means is predominately flat, with an integral hinge knuckle (91) which runs the width of the hinge; the knuckle hole is slightly larger than the pin or rod (83) to allow the pin or rod to rotate within the knuckle when assembled with the other components of the hinge.

Figure 10 shows the second connecting means (81) which is a component of a hinge assembly. In this embodiment, the hinge part is made from injection mould polymer and has fixing points (100) in the hinge body (103) so as to fix the hinge to the outer door fixing points (72), by a series of screws. This fixing means has an integral pair of hinge knuckles (101) at side of one edge of the hinge. The knuckles sit below the body (103) on the end of the hinge, the knuckle hole is slightly larger than the rod (83) so as to allow the rod to rotate within the knuckles when assembled with the other components of the hinge. The hinge body (103) has an integral lip (104) which is slightly longer than the depth of the second connecting means such that when installed the hinge for the security door sits snugly underneath.

Figure 11 shows the third connecting means (82) which in this embodiment is a top and commensurate bottom component of a hinge. The hinge part is made in this embodiment from injection mould polymer and has fixing points (111) so as to fix the hinge assembly to the frame at the frame fixing point (72), by a series of screws or rivets. This fixing means has an opening at one end (110) slightly larger than the pin (83) to allow the pin to rotate within the opening when assembled with the other components of the hinge. The other end (112) is closed so as to hold the pin in a vertical orientation when fitted with the other components of the hinge.

Figure 12 shows the pin or rod (83) which is a component of the hinge assembly, in this embodiment; the pin is of unitary construction with deburred edges and tapered ends (120).

Referring to Figure 13 there is shown the accessory rail (01) according to an embodiment of the invention. The rail includes a mating interface (130) along the length of the top side of the rail. Each rebate (131) is sized to accommodate a suitable sized male member attached to an accessory or an accessory unit (not shown). The rail is manufactured from a lightweight material for example aluminium or plastic.

The accessory or accessory units have parts that protrude so as to engage and slot into the rebates on the mating interface (130). In this embodiment, the rail is affixed to the first door assembly or trim frame at the end of the rail (132) by two screws or rivets. The rail itself sits proud from the first door assembly (05) so as to allow a suitable gap for the blind (when attached) to be tracked behind it when down.

Finally, it is to be understood that various alterations, modifications and/or additions may be made without departing from the spirit of the present invention as outlined herein.

Claims (19)

THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS:

1. An entry for a movable unit, including a frame that defines an opening into the movable unit, a first door assembly for opening and closing, and a second door assembly 5 for opening and closing, wherein: the first door assembly and the frame are configured to define a first seal when in selectively close contact; and the second door assembly is configured so as to rest within the first door assembly and define a second seal when in selectively close contact with the first door assembly 10 such that the surface of the second door assembly and a periphery of the first door assembly are essentially coplanar when the first door assembly and second door assembly are in selectively close contact.

2. An entry according to claim 1, wherein the first door assembly incorporates a first 15 sealing surface at its periphery.

3. An entry according to claim 2, wherein the first door assembly incorporates a second sealing surface at its periphery. 20

4. An entry according to claims 2 or 3 wherein one or both sealing surfaces are defined as a single continuous seal on either side of the first door assembly.

5. An entry according to any of the preceding claims further including a hinge assembly including a first connecting means, second connecting means, a third connecting 25 means and a pin, wherein the first and second connecting means are both coupled to third connecting means by a pin such that the first door assembly and second door assembly rotate about the pin in the same direction to open and close.

6. An entry according to claim 5, wherein the second connecting means has 30 accommodation to straddle the first connecting means such that the first connecting means rests under the second connecting means when the first door assembly is in selectively close contact with the second door assembly.

7. An entry according to claim 5 or 6, wherein the hinge assembly is configured so as 35 not to interrupt either or both of the first sealing surface or the second sealing surface when either the first door assembly or second door assembly are in selectively close contact with the frame.

8. An entry according to any one of claims 5 to 7, wherein the pin is unitary.

9. An entry according to claim 1, wherein the depth of the frame extends from the interior of the movable unit to an outer surface of the movable unit.

10. An entry according to claim 9 wherein the outer periphery of the first door 10 assembly, the outer periphery of the second door assembly and the outer periphery of the frame are essentially coplanar when in selectively close contact.

11. An entry according to claim 9 or 10, wherein the frame is integral to the movable unit.

12. An entry according to any of the preceding claims wherein the first door assembly includes a mesh screen panel.

13. An entry according to any of the preceding claims further including an accessory 20 rail.

14. An entry according to claim 12, wherein the accessory rail includes a mating interface having one or more rebates to accept at least one removable accessory unit. 25

15. An entry according to claim 13, wherein the removable accessory unit has a protrusion sized to be selectively inserted to an opposing rebate in the accessory rail.

16. An entry according to any of the preceding claims further including a selectively openable or closable blind unit.

17. An entry according to any of the preceding claims wherein the second door assembly includes a laminated window and/or vent.

18. An entry system according to any of the proceeding claims further including a 35 locking mechanism.

19. An entry system according to claim 18, wherein the locking mechanism selectively accommodates separation of the first door assembly from the frame, the first door assembly from the second door assembly and selective connection of the first door assembly and second door assembly to allow entry or exit from the movable unit by application of 5 rotational force to the second door only.