Abstract:
A fastening system for overhead storage bins on a supporting structure, having at least one pair of suspension eye lugs attached to a supporting structure or the overhead storage bins. The suspension eye lugs are detachably interconnected by a main pin, with receivers for the main pin being in alignment in a mounting position of the overhead storage bin. The main pin is spring-loaded in a main pin guide toward the other suspension eye lug and has, with the overhead storage bin not yet mounted, an end position in which the main pin is deployed from the main pin guide. A portion of the suspension eye lugs has a sloping ramp that allows the main pin to be deployed in the receiver of the other suspension eye lug by action of preload during upward movement of the overhead storage bin and its suspension eye lug into the mounting position.

Description:
BACKGROUND 
       [0001]    The invention relates to a fastening system for overhead storage bins that can be mounted on a supporting structure in a suspended manner, with at least one pair of suspension eye lugs that can be attached to the supporting structure or to one of the overhead storage bins, with a main pin for the detachable interconnection of the suspension eye lugs, and with receivers that are attached to the suspension eye lugs for the main pin and that align with each other in an installation position of the overhead storage bin, wherein a part of one of the suspension eye lugs is constructed like an inclined ramp, wherein a main pin guide is provided in the receiver of one of the suspension eye lugs, wherein the main pin is spring-loaded in the main pin guide in the direction of the other suspension eye lug and assumes, when the overhead storage bin has not yet been mounted, an end position in which the main pin is extended out of the main pin guide, and wherein the main pin can be extended by the spring bias loading into the receiver of the other suspension eye lug by the part of one of the suspension eye lugs formed like an inclined ramp during the upward movement of the overhead storage bin and its suspension eye lug into the installation position. 
         [0002]    Below, such a fastening system is indeed described in its use for the mounting of overhead storage bins, such as luggage containers, on the supporting structure of an aircraft. Such a fastening system, however, can be used anywhere it is applicable to mount overhead storage bins in a suspended manner. The suspension eye lug provided with the main pin guide is indeed advantageously mounted on the supporting structure, but the suspension eye lugs of a pair could be exchanged one for the other. In the development of new cabins for new models of aircraft, such as the Airbus A350, the goal is to design elements to be mounted on the fuselage, such as toilets, galley kitchens, passenger seats, cabin power networks, cabin lighting and air nozzles, overhead storage bins, and parcel shelves each as a complete cabin module, wherein, however, all connecting points are to be constructed as flexible standardized interfaces and wherein simplified fastening designs are to be used that allow installation and removal without the use of tools (cf. the article “Cabin development—a new approach for the A350—cabin customization,” Zeitschrift One, German edition, Dec. 18, 2006, p. 23). 
         [0003]    In a known fastening, which is used for the suspended mounting of luggage containers in an aircraft, more than three people are required for mounting each luggage container. At least three people lift the luggage container into an installation position. A pin (loose part) connects the suspension eye lugs of each pair to each other. For mounting these pins, special tools are required, such as hammers, pliers, etc. Moreover, the known fastening system does indeed make possible a secure fastening of the luggage containers on the supporting structure, wherein the fastening system distinguishes itself through its light weight, good force absorption, low price per part, and a small number of components, but opposing these features are relatively long installation and removal times, the relatively large number of people required for installing and removing a luggage container, and the need for tools. The loose pins could also be lost. These limitations have the result that attention must be paid in the cabin configuration of aircraft to manage with as few variants as possible. This is associated with loss of flexibility in the cabin configuration. It is also disadvantageous that the removal is complicated, because the pins can be removed again only with difficulty and typically only with special tools. 
         [0004]    An older proposal of the applicant (corresponding to the document DE 10 2009 026 250 A1 that was not yet published on the priority date of the present application) involves constructing a fastening system so that it makes possible a faster and simpler installation and removal of overhead storage bins, such as luggage containers, on a supporting structure, in particular, in wide-body aircraft, wherein installation and removal should be possible with two people, without special tools, and without loose parts. 
         [0005]    For this purpose, according to the older proposal, a pin guide is provided in one supporting sleeve in alignment with its receiver sleeve, wherein the pin is retracted into this pin guide but it can be locked in a spring-loaded manner in the direction of a receiver sleeve of the receiver of one of the suspension eye lugs and can be unlocked by at least approximately aligning the receivers of the suspension eye lug pair and can be extended at least into a receiver sleeve of the receiver of the other suspension eye lug in which a suspension eye lug is formed in a suspension sleeve. 
         [0006]    In the fastening system according to the older proposal, the non-extended pin is located in the pin guide under spring bias loading. The pin is thus not a loose part, but instead mounted captively from the beginning on one of the suspension eye lugs of the pair. This allows the installation of an overhead storage bin by fewer people than in the prior art, because the overhead storage bins must be lifted only until the receiver sleeves attached to the suspension eye lugs are essentially aligned with each other. In this way, the pin is released and is then extended by the existing spring bias loading into the receiver sleeve of the other suspension eye lug. Thus, the overhead storage bin is already locked onto one suspension eye lug. The pin can then be completely extended by hand if necessary at a later time and inserted into the receiver sleeve of the suspension eye lug. Removal is just as easy in the reverse sequence, without the need for a special tool for extending and retracting the pin. One of the people who have lifted the overhead storage bin up into the installation position is free after the first locking of the other suspension eye lug on the first suspension eye lug and can work on the final extension of the pin. The fastening system according to the older proposal thus allows easier installation and removal of overhead storage bins, such as luggage containers, that can be mounted in a suspended manner in aircraft with lower personnel costs. The safety is also increased, because there are no loose parts that could be lost and could cause interruptions. At the same time, more flexibility is achieved in the cabin equipment. The simple fastening system according to the older proposal allows many more variants than in the prior art. 
         [0007]    From US 2010/0 074 673 A1, a fastening system is known for overhead storage bins that can be mounted in a suspended manner on a supporting structure, wherein this system comprises a preliminary locking device and a main locking device. The preliminary locking device is used during installation for the automatic, temporary fixing of the overhead storage bin on the supporting structure. The main locking device is then activated, in order to finally fix the overhead storage bin. The preliminary locking device is arranged below a main pin of the main locking device when viewed in the insertion direction. During the installation of the overhead storage bin, the main pin remains in its unlocked position, while a pressure part of the preliminary locking device is spring-loaded in the locking position. The main pin of the main locking device has thicker dimensions in comparison with the pressure part of the preliminary locking device, in order to absorb the static and dynamic forces during operation. The provision of a main locking device and a preliminary locking device makes the known fastening system complicated. 
         [0008]    A fastening system of the type noted above is known from the document DE 10 2006 016 509 A1. This fastening system requires installation in two phases. In the first phase, the overhead storage bin is suspended with catch elements constructed as hooks in bearing elements. In the second phase, the overhead storage bin is then pivoted into the installation position. Here, two bolts are inserted into two locking elements and locked by engaging and setting a spring bias load. The locking can be released again through manual activation, in which a catch piece is shifted against the spring bias loading. 
         [0009]    A similar fastening system is known from the document DE 10 2008 025 232 A1. It comprises a locking mechanism for mounting an aircraft interior equipment component to an aircraft structure, comprising a guide groove with an opening, a bolt that can be brought into engagement with the guide groove, and a spring-loaded closing element that frees the opening of the guide groove in a first position and closes the opening of the guide groove in a second position. The closing element is designed to be automatically returned into the second position due to the effect of its spring loading and to close the guide groove. The locking position is then maintained by the spring loading of the closing element. 
         [0010]    From the document WO 2009/130268 A1, a fastening system for fastening an aircraft interior equipment element is known in which the interior equipment element is first suspended on a first fastening device, in order to then be pivoted into its actual installation position in which it is then locked by a second fastening device using a second locking device under spring bias loading. 
       SUMMARY 
       [0011]    The objective of the invention is to disclose a fastening system of the type noted above with a safer design. 
         [0012]    Starting with a fastening system of the type named above, this task is achieved according to the invention in that the receiver of the other suspension eye lug has a stop on which the main pin can be brought into contact due to the spring bias loading when it is being extended, and the main pin can be locked with a positive-fit connection to the stop by manual activation, wherein the stop is a peg arranged centrally in the receiver of the other suspension eye lug and the main pin has a complementarily shaped hole in which the peg can be held. 
         [0013]    Due to the positive-fit locking of the main pin with the stop, the main pin reaches a position in which the overhead storage bin is securely attached to the supporting structure. The fastening is released again only through manual detachment of the positive-fit locking between the main pin and the peg. Then the main pin can be pulled out from the receiver again, a process preferably performed with the help of a tool. 
         [0014]    The fastening system according to the invention is equipped, in contrast to the fastening system according to US 2010/0 074 673 A1 already mentioned above, with only one locking device that is simultaneously the preliminary and main locking device and has a main pin that is constructed essentially just like the pressure part of the preliminary locking device of this known fastening system. The fastening system according to the invention thus makes one of the two locking devices of the known fastening system, namely the preliminary locking device, unnecessary and consequently has a significantly less complicated construction than the known fastening system. 
         [0015]    The fastening system according to the invention has the same advantages as the fastening system according to the older proposal mentioned above. The fastening system according to the invention, however, is simpler than the fastening system according to the older proposal, because the main pin does not have to be unlocked during the upward movement of the overhead storage bin and its suspension eye lug, because the main pin is already extended and only has to be pushed back until it can be automatically extended into the receiver of the other suspension eye lug under the existing spring bias loading. Therefore, in the fastening system according to the invention, the other suspension eye lug manages with one receiver and the locking element moving perpendicular to the pin and provided in the fastening system according to the older proposal for locking the pin inserted there and its release support are eliminated. In addition, in the fastening system according to the invention, a lever hinged on the main pin guide is also eliminated for the manual retraction of the main pin into the pin guide and for extending the pin into the receiver sleeve of the suspension eye lug. Therefore, an even simpler and faster installation and removal with even fewer aids is possible with the fastening system according to the invention. For removing an overhead storage bin provided with the fastening system according to the invention, only the main pin locked in the receiver has to be released, which is easily possible with the help of a tool that engages on one end of the main pin, in order to release the main pin and push it backward. 
         [0016]    In the fastening system according to the invention, the main pin is thus brought into a position that simplifies its later locking in the receiver of the other suspension eye lug. 
         [0017]    The positive-fit locking of the main pin to the stop can be realized with the help of a tool that is the sole tool that is absolutely necessary for the use of the fastening system according to the invention. 
         [0018]    The lever used in the older proposal for the manual extension of the pin until its free end is located in the receiver sleeve of the suspension eye lug provided with the pin guide is eliminated in the fastening system according to the invention. 
         [0019]    Advantageous constructions of the fastening system according to the invention form the subject matter of the dependent claims. 
         [0020]    In one construction of the fastening system according to the invention, the other suspension eye lug has funnel-shaped contours at least in its area surrounding the ramp-like part. This construction allows a simple and targeted insertion of the main pin into the receiver of the other suspension eye lug. 
         [0021]    In another construction of the fastening system according to the invention, the main pin and the peg can be locked with each other by means of a screw-thread connection. In this construction, the peg has to be constructed as a threaded shaft and the main pin has to be provided with a corresponding threaded hole, in order to allow the mutual locking of the main pin and peg by rotating the main pin. 
         [0022]    In another construction of the fastening system according to the invention, the main pin and the peg can be locked with each other by means of a bayonet mount. Such a connection makes a thread on the peg and on the main pin unnecessary and reduces the locking movement to a rotational movement of the main pin of, for example, 90° or 180°. 
         [0023]    In another construction of the fastening system according to the invention, the main pin has a force transmission contact for a tool on the side facing away from the other suspension eye lug. This construction simplifies the rotation of the main pin for locking this pin with the peg and also for unlocking this pin. 
         [0024]    In another construction of the fastening system according to the invention, the main pin has an inner longitudinal hole in which a helical spring is arranged for generating the spring bias loading. This helical spring is supported on one end on the main pin and on the other end on a transverse shaft that is anchored in the receiver and is held in two diametrically opposite elongated holes of the main pin. This construction of the invention allows, in a simple way, the displacement and rotation of the main pin required for the engaging of the main pin in the receiver of the other suspension eye lug or for the locking therein. 
         [0025]    In another construction of the fastening system according to the invention, a first pair of suspension eye lugs and a second pair of suspension eye lugs can be attached one next to the other to two adjacent suspension points of two adjacent overhead storage bins. The arrangement is made here as in the older proposal so that when the overhead storage bins are mounted, for example, one overhead storage bin with the first suspension eye lug pair prevents movement in the X, Y, and Z directions and the other overhead storage bin with the second suspension eye lug prevents movement in the Y and Z directions. 
         [0026]    In another construction of the fastening system according to the invention, the two other suspension eye lugs of the two pairs in which the main pins can be extended into the installation position are constructed as a multiple suspension eye lug in which multiple receivers are arranged. The multiple suspension eye lug provided in this construction of the invention has less spatial requirements than multiple individual suspension eye lugs, so that adjacent overhead storage bins or the like can be arranged at a closer distance. 
         [0027]    In another construction of the fastening system according to the invention, the previously mentioned multiple suspension eye lug is constructed as a double suspension eye lug in which two receivers are arranged back to back. The double suspension eye lug provided in this construction of the invention has less spatial requirements than two individual suspension eye lugs that are arranged one next to the other and would otherwise be used when two overhead storage bins are to be mounted adjacent to each other. With the help of the double suspension eye lug, the adjacent overhead storage bins can be arranged at a closer distance. 
         [0028]    In another construction of the fastening system according to the invention, the overhead storage bins that can be mounted on the supporting structure in a suspended manner are luggage containers in an aircraft. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0029]    Embodiments of the invention will be described in more detail below with reference to the drawings. Shown are: 
           [0030]      FIGS. 1-4  are views showing four phases of installing an overhead storage bin (shown only in  FIG. 1 ) on a supporting structure (shown only in  FIG. 1 ), wherein  FIG. 1  shows the non-installed state of the overhead storage bin,  FIG. 2  shows the upward movement of the overhead storage bin with respect to the supporting structure,  FIG. 3  shows when the installation position is reached, and  FIG. 4  shows a secured installation position, and wherein, in  FIG. 2 , half of an upper suspension eye lug is shown in section, in order to make visible the inner construction of a receiver for a main pin attached to a suspension eye lug of the overhead storage bin, 
           [0031]      FIG. 5  is a sectional view along the line V-V in  FIG. 3 , 
           [0032]      FIG. 6  is a section view along the line VI-VI in  FIG. 4 , 
           [0033]      FIG. 7  is a detail of the upper suspension eye lug in  FIG. 2  taken in the direction of an arrow VII in  FIG. 2 , 
           [0034]      FIG. 8  is a detail of a main pin guide in a side view, 
           [0035]      FIG. 9  is the main pin guide in a longitudinal section view along the line IX-IX in  FIG. 8 , 
           [0036]      FIG. 10  is a view of the fastening system according to  FIG. 3  or  4  in a pulled-apart representation, and 
           [0037]      FIG. 11  is a side view showing the use of a double suspension eye lug in the fastening system according to the invention. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0038]      FIGS. 1-4  show a preferred embodiment of a fastening system designated overall with  10  according to the invention, wherein the mounting of an overhead storage bin  12  shown only in  FIG. 1  on a supporting structure  14 , e.g., of an aircraft, shown only in  FIG. 1  is shown in four phases. The overhead storage bin  12  could be a luggage container or the like in an aircraft. The fastening system  10  comprises a pair of suspension eye lugs (called brackets in aeronautical engineering) that are designated overall with  20  or  22 . The suspension eye lug  20  (called C-bracket in aeronautical engineering) is attached to the overhead storage bin  12 . The suspension eye lug  22  is constructed for fastening to the supporting structure  14 . This fastening is indicated in  FIG. 1  by two screws with nuts that are guided through holes  24  in a fastening tab  23  of the suspension eye lug  22  (more clearly visible in  FIG. 7 ) and through corresponding holes in the supporting structure  14 . In  FIG. 2 , the right half of the suspension eye lug  22  is also shown in section, in order to make visible a receiver designated overall with  30  for a main pin  40  attached to the suspension eye lug  20 . A suspension eye lug that has only the right part of the suspension eye lug  22  shown in section in  FIG. 2  would be sufficient for the purpose described here. Such a suspension eye lug and the suspension eye lug  20  could be interchanged. In  FIGS. 1-4 , however, the suspension eye lug  22  is constructed as a double suspension eye lug (called B-bracket in aeronautical engineering) that is used in the mounting of two adjacent overhead storage bins  12  as shown in the embodiment shown in  FIG. 11  and described in more detail farther below. The fastening system  10  is shown in  FIG. 1  for a non-installed overhead storage bin, i.e., the suspension eye lugs  20 ,  22  are not connected to each other by the main pin  40 , as shown in  FIGS. 3 and 4  for the mounted state, but instead are still separated from each other. The suspension eye lugs  20 ,  22  can be connected to each other detachably by the main pin  40  and in this way the overhead storage bin  12  can be mounted on the supporting structure  14  in a suspended manner. Below, the two suspension eye lugs  20 ,  22  will now be described first individually. 
         [0039]    According to the representation in  FIGS. 1-6 , the suspension eye lug  20  comprises an eye  42  as a receiver  32  for a main pin guide designated overall with  50 . The main pin  40  is supported so that it can move in a bearing bushing  52 . The bearing bushing  52  is supported on its side so that it can rotate in a sliding bushing  54 . The sliding bushing  54  is fixed on its side in the eye  42 . The main pin  40  has an inner elongated hole  56  in which a helical spring  58  is arranged for generating a spring bias loading. This helical spring is supported on its end on the left in  FIG. 9  on the main pin  40  and on its other end on a transverse shaft  60 . The transverse shaft  60  extends through the elongated hole  56  and through two adjacent elongated holes  62  of the main pin  40  and also through two holes in the bearing bushing  52 , so that it projects from the bearing bushing  52  with its two ends and is supported on a collar of the sliding bushing  54 , as can be seen from the representation in  FIGS. 8 and 9 . In this way, a rotational movement of the main pin  40  together with the bearing bushing  52  in the sliding bushing  54  is possible and moreover the displacement of the main pin  40  on the transverse shaft  60  within the limits allowed by elongated holes  62 . The bearing bushing  52  is supported with a collar  53  on the end of the sliding bushing  54  shown on the left in  FIGS. 8 and 9 . The bushings  52  and  54  are supported with the collars  53  and  55  and thus the pin guide  50  is supported in the axial direction on a wall  64  of the eye  42 , as can be seen in  FIGS. 5 and 6 . On its side facing away from the suspension eye lug  22 , that is, on its right side in  FIG. 9 , the main pin  50  has a force transmission contact  66  for a not-shown tool. On the left side of the main pin  40  in  FIG. 9 , its longitudinal hole  56  has a part that forms a threaded hole  57  of smaller diameter whose thread is designated with  59 . 
         [0040]    The suspension eye lug  22  is a component that can be fixed detachably to the fastening tab  23  on the supporting structure  14 , as already mentioned above. An impact damping bushing  46  that carries a centrally arranged bushing  48  is arranged in an eye  44  of the suspension eye lug  22  as a receiver  30  for the main pin  40 . The bushing  48  contains a receiver hole  49  in which the main pin  40  can be inserted. The receiver  30  of the suspension eye lug  22  has a stop  70  for the main pin  40 . The stop  70  is formed by a screw  72  in the shown embodiment. The screw  72  is anchored locked in rotation in the bushing  48 . The thread of the screw  72  corresponds to the thread  59  of the threaded hole  57  of the main pin  40 , so that the screw  72  can be screwed into the threaded hole  57  by turning the main pin  40 . Until then, the screw  72  forms the stop  70  on which the main pin  40  comes into contact in its movement out from the main pin guide  50  due to the bias loading of the spring  58 , as shown in  FIG. 5 . 
         [0041]    For the understanding of the invention described up to this point, only the right half of the suspension eye lug  22  shown in section in  FIGS. 5 and 6  is of interest. The opposing left half has an identical, mirror-symmetric design when the suspension eye lug  22 , as shown, is constructed as a double suspension eye lug for use as shown in  FIG. 11 . 
         [0042]    According to the representation in  FIG. 2 , a part  25  of the suspension eye lug  22  is constructed like an inclined ramp. During the upward movement of the overhead storage bin  12  from the position shown in  FIG. 1 , the main pin  40  is pushed to the right in  FIG. 2  by the ramp-like part  25 , while the suspension eye lug  20  allocated to it is moved upward into the installation position shown in  FIGS. 3 and 4 . As soon as the main pin  40  reaches this position in which its axis coincides with the axis of the receiver  30 , it is extended from the suspension eye lug  20  by the bias loading of the helical spring  58  into the receiver  30  of the suspension eye lug  22 , into the position according to  FIGS. 3 and 5  in which the main pin contacts the stop  70 . 
         [0043]    The suspension eye lug  22  has a funnel-shaped contour  68  at least in its area surrounding the ramp-like part  25 , wherein, in the embodiment shown here, the funnel-shaped contour  68  is also present in additional areas of the suspension eye lug  22 , as can be seen in  FIGS. 7 and 10 . The funnel-shaped contour  68  leads the main pin  40  to the stop  70  on which it is first brought into contact and then fixed. The suspension eye lug  22  is also provided with grooves  47  that are used for the torque support of the impact damping bushing  46 , that is, as torsion protection. A securing ring  45  prevents the impact damping bushing  46  from falling out from the eye  44 . An inner ring  75  continues the contours of the suspension eye lug  22 , in order to allow a simple and targeted introduction of the main pin  40 . The inner ring  75  has pegs  77  that sit in the grooves  47  of the suspension eye lug  22  and are used for torque support of the impact damping bushing  46 , that is, as torsion protection. 
         [0044]    Through manual activation of a tool inserted into the force transmission contact  66 , the main pin  40  can be locked with a positive-fit connection to the stop  70 . In the embodiment described here, the main pin  40  and the peg  70  can be locked to each other by a screw-thread connection. Instead, the main pin and the peg could also be locked with each other by a bayonet mount (not shown). Through the production of the thread connection or bayonet catch between the peg  70  and the main pin  40 , the main pin reaches the position shown in  FIGS. 4 and 6  in which the overhead storage bin  12  is fixed securely on the supporting structure  14 . Only by detaching the thread connection or bayonet mount between the main pin  40  and the peg  70  is the fastening released again. As soon as the main pin has reached the position shown in  FIG. 5  again, it can be pulled out from the receiver  30 . This procedure is preferably performed with the help of a tool used for this purpose on its right end. 
         [0045]    In the embodiment according to  FIG. 11 , instead of two suspension eye lugs arranged one next to the other, only one suspension eye lug  22  is provided that is constructed as a double suspension eye lug and has the structure already described above. In the eyes  44  of the double suspension eye lug, the two receivers  30  are arranged back to back, as can be seen in  FIGS. 5 and 6 . 
         [0046]    The installation and removal of the overhead storage bin  12  will now be described in summary with reference to the representation in  FIGS. 1-11 . 
         [0047]      FIG. 1  shows the starting positions of the suspension eye lugs  20  and  22 . In the starting position of the suspension eye lug  20 , the main pin  40  is extended out from the main pin guide  50  into an end position shown in  FIG. 1 . In this position, the main pin  40  is biased in the extension direction by the helical spring  58 . At least three people (or one person operating a lifting device) now lift the overhead storage bin  12  until the main pin  40  reaches the ramp-like part  25  and is pushed increasingly to the right in  FIG. 2  with increasing upward movement of the overhead storage bin  12 . As soon as the suspension eye lug  20  reaches the installation position shown in  FIG. 3  in which the longitudinal axis of the main pin  40  and the longitudinal axis of the receiver  30  of the suspension eye lug  22  are in a line, the helical spring  58  that has been increasingly set in tension up to reaching this position pushes the main pin  40  entering into the receiver  30  against the stop  70 , so that the main pin  40  assumes the position shown in  FIG. 5 . By rotating the main pin  40  about its longitudinal axis, it is screwed onto the screw  72  forming the stop  70 , wherein the main pin  40  finally reaches the position shown in  FIG. 6  in which the fastening system  10  is secured. As soon as the main pin  40  reaches the position shown in  FIGS. 3 and 5 , the overhead storage bin  12  is already temporarily locked on the suspension eye lug  22 , so that at least one of the persons lifting the overhead storage bin  12  into the installation position is free to turn the main pin  40  with the help of a tool inserted into the force transmission contact  66  until the main pin  40  and thus the overhead storage bin  12  is finally secured in the installation position according to  FIGS. 4 and 6 . 
         [0048]    For removing the overhead storage bin  12 , the main pin  40  is turned in the reverse direction until it has again reached the position according to that in  FIGS. 3 and 5  in which the fastening system  10  is unlocked. The main pin  40  can now be pushed out by hand from the receiver  30  of the suspension eye lug  22  and the overhead storage bin  12  can be lowered again. 
         [0049]    In the representation in  FIG. 11 , a right suspension eye lug  20  and a left suspension eye lug  20 ′ are attached one next to the other on two adjacent overhead storage bins  12  on a double suspension eye lug  22  attached to the supporting structure  14 , wherein the mounted and secured state as in  FIGS. 4 and 6  is shown in  FIG. 11 . 
         [0050]    Another impact damping bushing that is also shown in the figures and is designated with  80  in  FIG. 10  and is attached in another eye  82  of the suspension eye lug  20  is not part of the invention. For the sake of completeness, it shall be mentioned only that the impact damping bushing  80  absorbs forces occurring in the X-direction and transmits these, for example, by means of a not-shown tension bar that is connected directly to the supporting structure  14 . 
         [0051]    Finally it should be stated that not only the suspension eye lugs  20 ,  20 ′,  22 , but also all parts of these suspension eye lugs are interchangeable from one suspension eye lug to another, so that, e.g., the main pin guide  50  could be attached to the suspension eye lug  22  instead of the suspension eye lug  20  and the receiver  30  for the main pin  40  and the ramp-like part  25  could be attached to the suspension eye lug  20  instead of the suspension eye lug  22 . 
       REFERENCE SYMBOLS 
       [0000]    
       
           10  Fastening system 
           12  Overhead storage bin 
           14  Supporting structure 
           20  Suspension eye lug 
           22  Suspension eye lug 
           23  Fastening tab 
           24  Hole 
           25  Ramp-like part 
           30  Receiver 
           32  Receiver 
           40  Main pin 
           42  Eye 
           44  Eye 
           45  Securing ring 
           46  Impact damping bushing 
           47  Groove 
           48  Bushing 
           49  Receiver hole 
           50  Main pin guide 
           52  Bearing bushing 
           53  Collar 
           54  Slide bushing 
           56  Longitudinal hole 
           57  Threaded hole 
           58  Helical spring 
           59  Thread 
           60  Transverse pin 
           62  Elongated hole 
           64  Wall 
           66  Force transmitting drive 
           68  Funnel-shaped contours 
           70  Stop 
           72  Screw 
           75  Inner ring 
           77  Peg 
           80  Impact damping bushing 
           82  Eye