Abstract:
Modular configuration for an aircraft interior floor plan design is provided by an fuselage having starboard and port side attachment rails disposed longitudinally parallel to one another. Each of the starboard and port side attachment rails are comprised of outboard and inboard rails and a center rail positioned therebetween. A plurality of interior fixtures are provided with fixed attachment posts asymmetrically oriented relative to a longitudinal centerline plane of the fixture. Such fixtures can therefore be attached to predetermined pairs of the starboard and port side attachment rails to provide for a desired configuration of the fixtures within the fuselage.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
       [0001]    This application is related to and claims domestic priority benefits under 35 USC §119(e) from U.S. Provisional Application Ser. No. 60/897,493 filed on Jan. 26, 2007, the entire content of which is expressly incorporated hereinto by reference. 
     
    
     FIELD OF THE INVENTION 
       [0002]    This invention relates generally to aircraft and, more specifically, to passenger aircraft interior configurations and methods. In especially preferred embodiments, the present invention relates to aircraft interior fixtures (e.g., single and dual passenger seat assemblies, tables, sofas and the like) which may be positioned within the aircraft interior at various locations to achieve desired interior configurations. 
       BACKGROUND AND SUMMARY OF THE INVENTION 
       [0003]    Passenger interior floor plans conventionally allow a limited degree of customization if little structural rework is desired. Usually aircraft interior fixtures can be installed for smaller executive jets on areas defined exclusively for monuments and seat assemblies can be installed on areas defined for seat assemblies. If an area is defined to accommodate a wardrobe, for example, only a wardrobe or a similar monument can be installed in the same area. 
         [0004]    Larger executive jets typically allow more customized configurations, but structural rework is required in order to provide the necessary attachment points. Modules, in this case, are not clearly defined as monument and/or seat arrangements designed to be installed in a marked zone of the aircraft. Especially in the Executive Jets market, the possibility of floor plan customization is a very important requirement for the customer. A modular interior configuration greatly improves the possibility of customization since different aircraft interior fixtures can be arranged on the same position inside a defined zone. 
         [0005]    Flexible interior fixture placement within an aircraft becomes problematic for aircraft having symmetrically arranged pairs of longitudinal attachment tracks, wherein the tracks are separated by unequal dimensions. This particular arrangement of seat tracks has in the past necessitated dedicated seat assemblies and/or monuments for dedicated rail pairs in order to achieve a desired interior configuration. 
         [0006]    It would therefore be desirable if aircraft interior fixture arrangement could be provided having greater universal orientation capabilities which in turn could provide for greater flexibility of fixture placements within the aircraft interior to achieve different configurations. It is towards fulfilling such needs that the present invention is directed. 
         [0007]    Broadly, embodiments of the present invention generally provide for a modular configuration for the aircraft interior floor plan design. The modular configuration allows a higher level of interior customization for the owner, who can choose between a number of pre-defined aircraft interior fixture arrangements inside a limited zone of the aircraft. These zones have structural provisions that allow the installation of the different interior fixtures on different positions inside the aircraft fuselage. 
         [0008]    In especially preferred embodiments of the invention, aircraft are provided comprising a fuselage having starboard and port side attachment rails disposed longitudinally parallel to one another. Each of the starboard and port side attachment rails may be comprised of outboard and inboard rails and a center rail positioned therebetween. A plurality of interior fixtures may be provided with fixed attachment posts asymmetrically oriented relative to a longitudinal centerline plane of the fixture. Such fixtures can therefore be attached to predetermined pairs of the starboard and port side attachment rails to provide for a desired configuration of the fixtures within the fuselage. 
         [0009]    The fixtures may include at least one selected from the group consisting of single passenger seat assemblies, dual passenger seat assemblies, table assemblies and sofa assemblies. In some embodiments, the fixtures will include at least one fixture selected from the group consisting of single seat assemblies, dual seat assemblies and sofa assemblies, wherein each of the single seat assemblies, dual seat assemblies and sofa assemblies have fixed attachment posts which are asymmetrically off-set in an outboard direction relative to longitudinal centerline planes thereof. 
         [0010]    In other embodiments, the fixtures will include at least one of single and dual seat assemblies and at least one of single and dual seat table assemblies positioned symmetrically in front of a respective one of the single and dual seat assemblies, wherein each of the single and dual seat table assemblies have fixed attachment posts which are asymmetrically off-set in an inboard direction relative to centerline planes thereof to allow symmetrical positioning in front of the single and dual seat assemblies, respectively. 
         [0011]    The fixtures may also include a sofa assembly. In those embodiments having a sofa assembly, it will preferably be provided with fixed attachment posts which are asymmetrically off-set in an outboard direction relative to a longitudinal centerline plane thereof. 
         [0012]    Each of the outboard and center rails of the starboard and port rails is preferably separated by a dimension Do, and wherein the each of the inboard and center rails of the starboard and port rails is separated by a dimension Di which is greater dimension Do. In addition, it is preferred that each of the inboard rails of the starboard and port rails is separated by a dimension Dc which is greater than Di. Thus in some embodiments, Dc&gt;Di&gt;Do. 
         [0013]    These and other aspects and advantages will become more apparent after careful consideration is given to the following detailed description of the preferred exemplary embodiments thereof. 
     
    
     
       BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS 
         [0014]    Reference will hereinafter be made to the accompanying drawings, wherein like reference numerals throughout the various FIGURES denote like structural elements, and wherein; 
           [0015]      FIG. 1  is a top plan x-ray view of an aircraft fuselage which embodies configurable interior fixtures in accordance with the present invention; 
           [0016]      FIGS. 1A and 1B  are enlarged top plan x-ray views of the forward and aft sections of the aircraft fuselage depicted in  FIG. 1  showing one possible interior configuration of fixtures therein; 
           [0017]      FIGS. 2A and 2B  are aftward and forward looking cross-sectional elevations as taken along lines  2 A- 2 A and  2 B- 2 B in  FIGS. 1A and 1B , respectively; 
           [0018]      FIGS. 3A and 3B  are aftward and forward looking cross-sectional elevations as taken along lines  3 A- 3 A and  3 B- 3 B in  FIG. 1B ; and 
           [0019]      FIGS. 4A and 4B  are aftward and forward looking cross-sectional elevations as taken along lines  4 A- 4 A and  4 B- 4 B in  FIG. 1B . 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0020]    As used herein and in the accompanying claims, various terms of orientation are used in relation to an aircraft and have the following definitions. The terms “forward” and “aft” directionally mean towards the forward and aft portions, respectively, of an aircraft&#39;s fuselage as viewed in a forward facing position. Similarly, “starboard” and “port” directionally mean the right and left sides, respectively, of an aircraft as viewed in a forward facing position relative to the fuselage centerline of the aircraft. The terms “inboard” and “outboard” mean a direction toward and away from, respectively, the fuselage centerline of the aircraft. The term “longitudinal centerline plane” when referring to an aircraft interior fixture means a plane which bisects the aircraft fixture longitudinally parallel to the longitudinal centerline plane of the aircraft fuselage. 
         [0021]    Accompanying  FIGS. 1A and 1B  represent forward and aft fuselage sections  10 A,  10 B of an aircraft  10  showing a possible interior configuration therein, respectively. It will be understood that the interior configuration depicted in  FIGS. 1A and 1B  is exemplary only and is not limiting to the present invention. Thus, as will be understood from the discussion which follows, a variety of different interior configurations will be possible limited only perhaps by the imagination of the personnel designing a particular layout. 
         [0022]    The aircraft  10  is provided with starboard and port side track pairs  12 , 14 , respectively, running substantially the lengthwise extent of the fuselage sections  10 A and  10 B parallel to the centerline C L  of the aircraft  10 . Each of the track pairs is comprised of a central track  12   c ,  14   c  flanked by outboard and inboard (relative to the aircraft centerline C L ) tracks  12   o ,  14   o  and  12   i ,  14   i , respectively. Thus, track pairs are formed of tracks  12   o / 12   c ,  12   i / 12   c ,  14   o / 14   c  and  14   i ,  14   c , respectively. 
         [0023]    The separation distances between the various track pairs, while symmetrical relative to the aircraft centerline C L , is not however equal to one another. In this regard, the distances Do between the outboard starboard and port track pairs  12   o / 12   c  and  14   o / 14   c  are equal to one another but are less as compared to the distances Di between the inboard starboard and port track pairs  12   i / 12   c  and  14   i / 14   c , respectively. In addition the center distance Dc between the inboard pair of tracks  12   i / 14   i  is greater as compared to distances Di and Do. Thus, in preferred embodiments, Dc&gt;Di&gt;Do. 
         [0024]    As can also be seen from  FIGS. 1A and 1B , the interior of the aircraft may be comprised of one or more forward facing starboard and port side single passenger seat assemblies  20 A s  and  20 B p , respectively, and one or more rearward facing port and starboard side single passenger seat assemblies  20 A p ,  20 B s , respectively. Similarly one or more forward facing starboard and port side dual passenger seat assemblies  30 A s  and  30 B p , respectively, and one or more rearward facing port and starboard side dual passenger seat assemblies  30 A p  and  30 B s , respectively. For passenger convenience, starboard and port side dual tables  40   s ,  40   p , starboard and port side sofas  50   s ,  50   p  and starboard and port side single tables  60   s ,  60   p  may be provided. 
         [0025]    Due to the unequal spacing between the track pairs  12 , 14  as discussed previously the various seat assemblies, tables and monuments may be provided with fixed attachment points so as to be positionable on the starboard and port sides of the aircraft. Thus, as shown in  FIGS. 2A and 2B , the single passenger seat assemblies  20 A s  and  20 A p  are structurally identical to one another with respect to their respective fixed-position (i.e., non-adjustable) attachment posts being separated by the same distance as Do for attachment to the track pairs  12   o / 12   c  and  14   o / 14   c , respectively, but may be positioned mirror image to one another, i.e., in a forward facing orientation on the starboard side of the aircraft and a rearward facing orientation on the port side of the aircraft, respectively. This mirror image placement of the passenger seat assemblies  20 A s  and  20 A p  is permitted not only by the spacing of the attachment posts so as to be separated by the distance Do, but also due to the fact that the attachment posts are asymmetrically off-set relative to the longitudinal centerline planes of the seat assemblies  20 A s  and  20 A p  in an outboard direction. As such, the seat assemblies  20 A s  and  20 A p  may be positioned closely adjacent to the wall of the aircraft fuselage when fixed to the track pairs  12   o / 12   c  and  14   o / 14   c.    
         [0026]    In a similar manner, dual passenger seat assemblies  30 B p  and  30 B s  are structurally identical to one another with respect to their respective fixed-position (i.e., non-adjustable) attachment posts being separated by the same distances as Do and Di for attachment to the track pairs  12   o / 12   c ,  14   o / 14   c , and  12   i / 12   c ,  14   i ,  14   c , respectively, but may be positioned mirror image to one another, i.e., in a forward facing orientation on the port side of the aircraft and a rearward facing orientation on the starboard side of the aircraft, respectively. This mirror image placement of the passenger seat assemblies  30 B p  and  30 B s  is permitted not only by the spacing of the attachment posts so as to be separated by the distances Do and Di, but also due to the fact that the attachment posts are asymmetrically off-set relative to the longitudinal centerline planes of the seat assemblies  30 B p  and  30 B s  in an outboard direction. As such, the seat assemblies  30 B p  and  30 B s  may be positioned closely adjacent to the wall of the aircraft fuselage when fixed to the track seat assemblies  12   o ,  12   c  and  12   i  or  14   o ,  14   c  and  14   i.    
         [0027]    As shown in  FIGS. 3A and 3B , the single passenger seat assemblies  20 Bp and  20 B s  are structurally identical to one another with respect to their respective fixed-position (i.e., non-adjustable) attachment posts being separated by the same distance as Do for attachment to the track pairs  14   o / 14   c  and  12   o / 12   c , respectively, but may be positioned mirror image to one another, i.e., in a forward facing orientation on the port side of the aircraft and a rearward facing orientation on the starboard side of the aircraft, respectively. This mirror image placement of the passenger seat assemblies  20 Bp and  20 B s  is permitted not only by the spacing of the attachment posts so as to be separated by the distance Do, but also due to the fact that the attachment posts are asymmetrically off-set relative to the longitudinal centerline planes of the seat assemblies  20 Bp and  20 B s  in an outboard direction. As such, the seat assemblies  20 Bp and  20 B s  may be positioned closely adjacent to the wall of the aircraft fuselage when fixed to the track pairs  14   o / 14   c  and  12   o / 12   c.    
         [0028]    Similarly dual passenger seat assemblies  30 A s  and  30 A p  are structurally identical to one another with respect to their respective fixed-position (i.e., non-adjustable) attachment posts being separated by the same distances as Do and Di for attachment to the track pairs  12   o / 12   c ,  12   i / 12   c  and  14   o / 14   c ,  14   i ,  14   c , respectively, but may be positioned mirror image to one another, i.e., in a forward facing orientation on the starboard side of the aircraft and a rearward facing orientation on the port side of the aircraft, respectively. This mirror image placement of the passenger seat assemblies  30 A s  and  30 A p  is permitted not only by the spacing of the attachment posts so as to be separated by the distances Do and Di, but also due to the fact that the attachment posts are asymmetrically off-set relative to the longitudinal centerline planes of the seat assemblies  30 A s  and  30 A p  in an outboard direction. As such, the seat assemblies  30 A s  and  30 A p  may be positioned closely adjacent to the wall of the aircraft fuselage when fixed to the starboard and port track seat assemblies  12   o ,  12   c  and  12   i  or  14   o ,  14   c  and  14   i , respectively. 
         [0029]    It will also be observed in  FIGS. 3A and 3B  that starboard and port side table assemblies  40   s ,  40   p  are positioned in front of the dual passenger seat assemblies  30 A s ,  30 A p , respectively. The table assemblies  40   s ,  40   p  are structurally identical to one another but mirror images when positioned on the starboard and port sides of the fuselage of the aircraft  10 . Thus, it will be observed that the table assemblies  40   s ,  40   p  are provided with a pair of fixed (non-adjustable) attachment posts for attachment to the pair of rails  12   i / 12   c  and  14   i / 14   c , respectively, and that such attachment posts are asymmetrically oriented in an inboard direction with respect to the longitudinal centerline planes of the tables. In such a manner therefore the tables  40   s ,  40   p  may be positioned symmetrically in front of the seat assemblies  30 A s  and  30 A p , respectively. 
         [0030]      FIGS. 4A and 4B  show the placement of starboard and port side sofa assemblies  50   s  and  50   p  in the aircraft interior. Specifically, the sofa assemblies  50   s  and  50   p  are provided with fixed (non-adjustable) attachment posts for attachment to rail pairs  12 / 12   c  and  14   o / 14   c , respectively. These fixed attachment posts are oriented so as to be asymmetrical with respect to the longitudinal centerline plane of each sofa assembly  50   s ,  50   p  so as to be off-set in an outboard direction. As such, the sofa assemblies  50   s  and  50   p  may be positioned closely adjacent to the wall of the aircraft fuselage when fixed to the starboard and port track seat assemblies  12   o  and  12   c  or  14   o  and  14   c , respectively. 
         [0031]    The aircraft interior may also be provided with single seat starboard and port table assemblies  60   s ,  60   p  for attachment to the starboard and port rail pairs  12   o / 12   c  and  14   o / 14   c , respectively, as shown in  FIG. 1B . Like the dual seat table assemblies  40   s ,  40   p  discussed previously in connection with  FIGS. 3A and 3B , the table assemblies  60   s ,  60   p  are structurally identical to one another but mirror images when positioned on the starboard and port sides of the fuselage of the aircraft  10 . 
         [0032]    Due to the asymmetrical placement of the fixed (non-adjustable) attachment posts provided with the various aircraft interior fixtures (e.g., single passenger seat assemblies, dual passenger seat assemblies, table assemblies, and sofa assemblies), an aircraft&#39;s interior may be configured and reconfigured as may be desired. Thus, while the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.