Fastening mechanism for suspending and mounting storage compartment in aircraft in particular
Patent Information
- Application Number
- JP2022088292
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2021-05-31
- Filing Date
- 2022-05-31
- Publication Date
- 2025-06-03
AI Technical Summary
Existing fastening mechanisms for overhead storage compartments in aircraft are expensive, heavy, require complex precision adjustments, and allow condensate water to enter the cabin, necessitating additional braces and prolonged installation times.
A fastening mechanism with a first fastening member and a connecting device that includes a continuous isolation layer, allowing for weight reduction and quick installation, while preventing condensate ingress by isolating the support structure from the fastening mechanism.
The mechanism reduces weight, saves time and money during installation, and effectively prevents condensate from entering the cabin, ensuring secure and efficient mounting of storage compartments.
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Abstract
Description
Technical Field
[0001] The present invention relates to a fastening mechanism for suspending and attaching a storage compartment, particularly in an aircraft.
Background Art
[0002] In passenger areas of means of transportation such as the cabin of a commercial aircraft, storage compartments that can be suspended and attached are usually provided. These mainly serve as luggage boxes for luggage, clothing, and other passenger-related items, and are called overhead stowage compartments (OHSCs) or hatracks. Fastening systems are used to fasten the storage compartments to the support structure of the aircraft, thereby enabling the storage compartments to be suspended and attached, and thus forming, for example, ceiling-mounted containers in the passenger cabin.
[0003] In many cases, the storage compartments are very large and need to have a high load-bearing capacity, for example, to accommodate the luggage of a large number of passengers. Nevertheless, the assembly and disassembly of the storage compartments need to be carried out as quickly as possible, with as few personnel as possible, and without using tools if possible. Furthermore, the fastening mechanism of the storage compartment or luggage rack needs to withstand the forces and related loads generated during flight with the luggage loaded, and thus needs to withstand high loads to ensure that the storage compartment is firmly fastened.
[0004] To suspend a storage compartment from a support structure, a fastening mechanism (fastening system) is typically used, which includes a pair of support eyelets (ring-forming portions for suspension) and a bolt inserted into the two support eyelets to connect them. For this purpose, for example, one support eyelet is positioned on the side of the fastening member, and the other support eyelet is positioned on the side of the storage compartment. The two support eyelets are aligned with each other in order to insert the bolt into the support eyelets of this pair.
[0005] EP2563659B1 describes a fastening mechanism for suspending a ceiling-mounted container to a support eyelet that can be attached to a support structure or to a ceiling-mounted container, comprising a pair of support eyelets and a removable main bolt. The main bolt is elastically prestressed toward the first support eyelet within a main bolt guide and is in its terminal position if the ceiling-mounted container has not yet been mounted. In this terminal position, the main bolt extends out of the main bolt guide. Due to the elastic prestress, the main bolt extends toward a receiving portion of the first support eyelet with the help of an inclined ramp formed in the first support eyelet as the ceiling-mounted container moves upward toward its mounted position, where the main bolt can be fitted and securely locked. Here, a stopper is configured as a centrally located pin, and the main bolt is provided with a complementary hole for accommodating this pin.
[0006] Figure 2 shows a known fastening mechanism for a ceiling-mounted container 120, which forms an overhead storage compartment (OHSC), overhead bin, or hat rack within an aircraft cabin. The known fastening mechanism is configured, for example, as described in detail in the above-mentioned patent publication. This fastening mechanism comprises a plate-shaped first fastening member 101 used for fastening to a support structure or an aircraft frame member 102. A second fastening member 103 is screw-connected to the first fastening member 101.
[0007] The second fastening member 103 is screw-connected to the third fastening member 106 using screws 107. The third fastening member 106 is equipped with a double support eyelet 108, with further support eyelets 109 and 110 positioned aligned with it on either side. Bolts are positioned in each of the support eyelets 109 and 110, and the bolts fasten the ceiling mounting container 120 to the third fastening member 106 by being inserted from both sides into the central double support eyelet 108. A clip-in and snap-fit system is provided for fastening. [Overview of the project] [Problems that the invention aims to solve]
[0008] Known fastening mechanisms are designed to allow for advantageous installation within a short installation time. However, disadvantages include, for example, that their components are relatively expensive to manufacture and relatively heavy. To enable the snap-fit function, the hat track or overhead storage compartment (OHSC) also needs to be moved during installation. Furthermore, additional equipment is required to avoid uncontrolled forces within the frame structure. Moreover, very complex precision adjustments are required, which can take, for example, 15 minutes or more for each fastening mechanism used.
[0009] A further problem is the large amount of condensation that forms on the support structures, especially when the aircraft passes through various altitudes. Condensation in the area of the fastening mechanism can reach the storage compartments and the interior of the cabin.
[0010] The present invention aims to overcome the above-mentioned disadvantages. In particular, it seeks to create a fastening mechanism for suspending and installing a storage compartment or overhead storage compartment, thereby effectively preventing the intrusion of condensed water formed on a support structure into the internal area. Furthermore, it seeks to enable weight reduction of the fastening mechanism. Moreover, it seeks to save time and cost, especially during installation, of the fastening mechanism. [Means for solving the problem]
[0011] This objective is achieved by the fastening mechanism described in claim 1. A favorable configuration is described in the dependent claim.
[0012] The present invention provides a fastening mechanism for suspending and mounting a storage compartment, particularly in an aircraft, and includes: a first fastening member configured to fasten to a support structure; a second fastening member configured to fasten to a storage compartment for storing articles; and a connecting device configured to be surface-fixed to the first fastening member. Here, the connecting device and the second fastening member each include a support eyelet for receiving fastening bolts for fastening the connecting device to the second fastening member. Furthermore, since the first fastening member and the connecting device each have fastening surfaces for mutual fastening, a continuous, uninterrupted isolation layer for isolating and separating the support structure can be placed between the fastening surfaces and / or between the support structure and the first fastening member. In this way, the connecting device can be completely isolated and separated from the support structure.
[0013] This makes it possible to install a layer to block and separate the primary structure (the original structure before installation; the supporting structure) without creating any cuts or openings in the blocking and separation layer. In this way, condensed water is prevented from entering the cabin.
[0014] According to the present invention, the support structure can be completely isolated from the connecting device, for example, together with the first fastening member. For example, for this purpose, the first fastening member and the connecting device are configured such that their interconnection can be made by screw connections. For example, the first fastening member is irremovably connected to the support structure, particularly by riveting.
[0015] However, the first fastening member may be advantageously configured to be screw-connected to the support structure. This screw-connection allows the isolation / separation layer to be sandwiched between the support structure or primary structure and the first fastening member.
[0016] Thus, the present invention improves the flexibility when installing the barrier / separation layer. This is because the barrier / separation layer can be positioned and installed according to the requirements of each component in the fastening mechanism area, preventing moisture from entering from the support structure to the storage compartment.
[0017] The connecting device preferably includes a first connecting member and at least one second connecting member, the positions of which can be adjusted and fixed relative to each other.
[0018] This allows the position of the first support eyelet to be quickly adjusted relative to the position of the second support eyelet.
[0019] Advantageously, each connecting member has a connecting surface equipped with teeth for mutual fastening.
[0020] As a result, when fastening the connecting members to each other, the connecting surfaces can mesh and interlock. This enables the mutual positions of the connecting members to be adjusted quickly and reliably, and also enables the position of the support eyelet of the connection device to be adjusted quickly. In this way, an adjustable connection that can particularly withstand loads is created.
[0021] The connection device is preferably made of plastic.
[0022] As a result, the weight of the fasteners of the storage box of the aircraft is significantly reduced.
[0023] Advantageously, the fastening mechanism includes a toothed plate with a toothed part made of plastic, and this toothed plate is made of plastic.
[0024] In particular, the toothed plate can be fastened to one toothed side surface of the connecting member. In this way, the connecting member between the toothed plate and the other connection device is fixed in a desired position and orientation by the mutual toothed parts.
[0025] The plastic is preferably carbon fiber reinforced plastic and / or glass fiber reinforced plastic.
[0026] In particular, the first fastening member is made of aluminum.
[0027] The fastening mechanism advantageously includes a vibration damper disposed on at least one of the support eyelets.
[0028] The connection configuration is preferably manufactured by injection molding and / or overmolding.
[0029] The toothed plate is preferably manufactured by injection molding and / or overmolding.
[0030] When the fastening mechanism is assembled, preferably, the connecting surface of the connecting member is oriented parallel to the fastening surface for fastening the first fastening member to the support structure.
[0031] When the fastening mechanism is assembled, preferably, the connecting surfaces of the connecting members are oriented parallel to the fastening surfaces between the first fastening member and the first connecting member.
[0032] Preferably, when the fastening mechanism is assembled, the connecting surfaces of the connecting members are also oriented perpendicular to the fastening surface between the first fastening member and the first connecting member.
[0033] The second connecting member is preferably configured in the form of a plate, at least in a partial area.
[0034] For example, the support eyelets for the connection arrangement are formed in a plate-shaped region of the second connecting member.
[0035] The second connecting member is preferably configured to be flat. For example, it gradually transitions from a relatively wide area of the connecting surface used for connecting to the first connecting member to a relatively narrow area where support eyelets for the connecting device are preferably formed.
[0036] It is preferable that markings such as notches or small holes be incorporated into individual parts, fasteners, or connecting members. This ensures pre-alignment when assembling the parts. When these markings align, the parts are optimally pre-aligned, making assembly easier. Subsequently, for example, when aligning storage compartments configured as a hat rack, they may deviate from the previous alignment as needed.
[0037] Preferred embodiments of the present invention are described in more detail below with reference to the accompanying drawings. [Brief explanation of the drawing]
[0038] [Figure 1] A schematic diagram showing a fastening mechanism according to a preferred embodiment of the present invention, viewed from the front and obliquely, is provided. [Figure 2] As explained in the introduction, a schematic diagram of a known fastening mechanism for ceiling-mounted containers is shown. [Figure 3] A fastening mechanism according to a particularly preferred embodiment of the present invention is shown as a schematic front view thereof. [Figure 4] Figure 3 shows a schematic exploded view of the fastening mechanism. [Figure 5] Figures 3 and 4 show schematic diagrams of the back of the fastening mechanism. [Figure 6] Figures 3-5 show schematic side views of the fastening mechanism used to connect to the support structure. [Figure 7] Figures 3-5 show the fastening mechanism and schematic side views of the fastening members for fastening to the storage compartment. [Figure 8] A schematic perspective view showing a fastening mechanism, which is fastened to a support structure according to another preferred embodiment of the present invention, is shown from an oblique angle to the front. [Modes for carrying out the invention]
[0039] Identical or mutually corresponding components in the figures are indicated by the same reference numerals and will not be described again unless appropriate. Disclosures contained throughout the specification can be transferred to the same parts having the same reference numerals or the same component numerals. Position and orientation information selected in the specification, such as top, bottom, and side, refers directly to the drawings shown or indicated, and if the position changes, it is necessary to transfer it to the new position and orientation to be similar. Furthermore, individual features or combinations of features from different exemplary embodiments shown and described may also independently constitute solutions of the present invention or solutions according to the present invention.
[0040] Figure 1 shows a three-dimensional schematic view of a fastening mechanism 10 according to a preferred embodiment of the present invention, viewed from a direction inclined with respect to its front. The fastening mechanism 10 is used to suspend and mount an aircraft storage compartment 11. The storage compartment 11 may be, for example, an overhead bin, ceiling-mounted containers, baggage compartments, baggage containers, or stowage containers, which are suspended and mounted, or can be mounted, within the cabin of an aircraft, and in particular constitute a so-called overhead storage compartment or hat rack.
[0041] The fastening mechanism 10 includes a first fastening member 12 configured to be fastened to a support structure 13. For this purpose, the first fastening member 12 has a fastening surface 25 into which it is fastened to the support structure 13. The support structure 13 is, for example, a frame member of an aircraft fuselage.
[0042] Furthermore, the fastening mechanism 10 includes a second fastening member 14 configured to fasten to a storage compartment 11 that is installed by suspension, a portion of which is shown in Figure 1. The connecting device 15 is provided between the first fastening member 12 and the second fastening member 14 and is configured to perform surface fastening onto the first fastening member 12.
[0043] The connecting device 15 includes a support eyelet 16, and the second fastening member 14 includes a support eyelet 17. These support eyelets 16 and 17 are configured to receive a fastening bolt 18. As a result, the connecting device 15 is fastened to the second fastening member 14 by the fastening bolt 18 being received by the support eyelets 16 and 17. This fastening occurs when the support eyelets 16 and 17 are aligned with each other.
[0044] In the example shown here, the support eyelets 17 of the second fastening member 14 are located on both sides of the support eyelets 16. However, it is also possible to place the support eyelets 17 of the second fastening member 14 on only one side.
[0045] The first fastening member 12 and the connecting device 15 each include a fastening surface 12a or 22a, through which the connecting device 15 can be fastened to or is fastened to the first fastening member 12. This fastening is performed with a screw 20.
[0046] Therefore, during installation, the following is possible: In order to isolate and separate the support structure 13, the continuous isolation / separation layer 21 shown in Figure 6 can be positioned and installed between the fastening surfaces 12a and 22a during installation. As a result, even without providing slots, openings, or cutouts in the isolation / separation layer 21, the support structure 13 and the first fastening member 12 fastened to the support structure 13 can be isolated and separated from the connection configuration 15 as a whole.
[0047] During installation, only the screws 20 are pushed through the barrier / separation layer 21. As a result, these screws 20 are surrounded in one plane by the barrier / separation layer 21 in the area between the first fastening member 12 and the connecting device 15, and are sealed against moisture. In this manner, it is impossible for condensed water, for example, which forms in large quantities on the support structure 13 at different flight altitudes, to penetrate the fastening area of the storage compartment and enter the passenger cabin area through gaps, cracks, or openings in the barrier / separation layer 21.
[0048] The connecting device 15 includes a first connecting member 22 and a second connecting member 23, and their positions and orientations can be adjusted and fixed relative to each other. Therefore, the fastening mechanism 10 comprises a first fastening member 12, a second fastening member 14, and a connecting device 15 equipped with the first connecting member 22 and the second connecting member 23.
[0049] The first fastening member 12 is configured as a so-called A bracket, that is, as a Class A holder, and can be fastened to the support structure of an aircraft, and is configured to be fastened to a so-called B bracket (i.e., a Class B holder).
[0050] The connecting device 15 or its first connecting member 22 is configured as a B-bracket. This B-bracket can be fastened to the A-bracket or the first fastening member 12 with a screw 20.
[0051] The second connecting member 23 of the connecting device 15 is similarly configured as a B-bracket. During installation, the second connecting member 23 is connected to the first connecting member 22 by a screw 24. The second connecting member 23 is attached to the first connecting member 22 so as to be movable in two directions. Here, the two directions of movement are oriented perpendicular to each other, and are indicated by double arrows in the figure.
[0052] In this way, the position and orientation of the support eyelet 16 relative to the first connecting member 22 and therefore to the support structure 13 can be set or adjusted in two degrees of freedom before being properly fastened using the fastening means 24. Such setting or adjustment allows the storage compartment 11 to be properly positioned and oriented. This results in a visually consistent and uniform line from the multiple storage compartments thus mounted, in addition to the resulting mechanical improvements.
[0053] In the connection area between the first connecting member 22 and the second connecting member 23, the first connecting member 22 and the second connecting member 23 each have a connecting surface 22b or 23a, which are positioned facing each other during installation and each is equipped with a toothed portion. This allows the position and orientation of the second connecting member 23 relative to the first connecting member 22 to be adjusted. Subsequently, the toothed portions of the connecting surfaces 22b and 23a are engaged by tightening the screw 24, thereby achieving connection between the connecting members 22 and 23 by pressing, friction, and interlocking. As a result, the connection is particularly stable, and the adjusted position and orientation are maintained even under particularly heavy loads.
[0054] The first fastening member 12 is made of aluminum and is fastened to the support structure 13 or the frame member of the aircraft fuselage, for example, by riveting. The connecting device 15 and its connecting members 22, 23 are made of plastic. Preferably, they are made of fiber-reinforced or carbon fiber-reinforced and / or glass fiber-reinforced plastic. In particular, the connecting members 22, 23 or the connecting device 15 may be manufactured by an injection molding process.
[0055] In the exemplary embodiment shown herein, the connecting surfaces 22b and 23a of the connecting members 22 and 23 are oriented perpendicular to the fastening surfaces 12a and 22a. This allows the connecting device 15 to be fastened to, or to, the first fastening member 12 through its first connecting member 22.
[0056] A fastening mechanism 10 according to another preferred embodiment of the present invention is described in detail below with reference to Figures 3-5. Figure 3 is a schematic front view of the fastening mechanism 10, and Figures 4 and 5 are schematic exploded views or rear views of the fastening mechanism 10. For simplicity, the second fastening member 14 is not shown in these figures. Except for a few differences, the fastening mechanism is configured to be identical or similar to that of Figure 1.
[0057] As described above with reference to Figure 1, the plate-shaped first fastening member 12 is used for surface fastening to the support structure 13. As can be seen in Figure 5, the back surface 25 of the fastening member 12, which constitutes the fastening surface, is fastened to the support structure 13. That is, for example, it is fastened to the side surface of the frame member.
[0058] As can be seen in Figure 3, the first connecting member 22 of the connecting device 15 is fastened with screws 20 located on the front surface 26 of the first fastening member 12. For this purpose, the front surface 26 of the first fastening member 12 forms a fastening surface 12a for fastening the first connecting member 22. Therefore, the fastening surface 22a is provided on the back surface 27 of the first connecting member 22 (see Figure 5). Correspondingly, this fastening surface 22a is positioned to face the fastening surface 12a of the first fastening member 12.
[0059] The second connecting member 23 of the connecting device 15 is fastened to the first connecting member 22 with a screw 24. For this purpose, a connecting surface 22b for connecting to the second connecting member 23 is formed on the back surface 27 of the first connecting member 22 (see Figure 5).
[0060] The connection between the first connecting member 22 and the second connecting member 23 is configured as follows: The two connecting members 22 and 23 are configured to move relative to each other in two directions that are perpendicular to each other, as indicated by the double arrows in Figure 4. As a result, the position of the second connecting member 23 can be adjusted relative to the first connecting member 22, and then it can be securely fixed in the appropriate position by tightening the screw 24.
[0061] To adjust and fix the second connecting member 23, which is movable relative to the first connecting member 22, to a desired position, the toothed portion formed on the back surface 27 of the first connecting member 22 is also used. Correspondingly, as can be seen in Figure 4, a toothed portion is also formed on the connecting surface 23a, which is positioned to face the second connecting member 23.
[0062] By tightening the fastening screws 20 and / or the nuts associated therewith, the second connecting member 23 is fastened to the first connecting member 22 in an appropriate or desired position and orientation. In this position and orientation, the toothed portions of the corresponding or complementary connecting surfaces 22b and 23a of these connecting members 22 and 23 interlock, thereby ensuring high stability.
[0063] Furthermore, on the opposite side of the first connecting member 22, i.e., on the front surface 28, an additional connecting surface is formed, and a toothed plate 29 is provided, as can be seen in Figures 3 and 4. The toothed plate 29 has a toothed portion on the side facing the first connecting member 22, which is not visible here. It is provided to engage with a corresponding or complementary toothed portion on the front surface 28 of the first connecting member 22.
[0064] Therefore, the first connecting member 22 is face-fastened on both sides through toothed portions between it and the second connecting member 23 and toothed portions between it and the toothed plate 29. This fastening is performed by adjusting the position and orientation of the second connecting member 23 and then tightening the fastening screw 24. The fastening screw 24 extends through the second connecting member 23, the first connecting member 22 and the toothed plate 29 and engages with the associated nut (see Figure 4).
[0065] The vibration damper 30 is mounted on the support eyelet 16 of the second connecting member 23 and secured by a tightening ring 31. As a result, the aircraft's storage compartment 11 and other internal components are isolated from noise and vibration.
[0066] As shown in the embodiment in Figure 1, the first fastening member 12 is an aluminum A-bracket or A-holder. As described above, the first connecting member 22 and the second connecting member 23 are configured as B-brackets or B-holders and are made of plastic, preferably carbon fiber reinforced or glass fiber reinforced plastic. These solutions and the structures shown herein achieve a fastening mechanism 10 that is particularly lightweight and has very high load-bearing capacity.
[0067] Figures 6 and 7 show the fastening mechanism 10, along with the support structure 13 to which it is fastened, in a side view. Furthermore, Figure 7 also shows the fastening of the support eyelet 16 in the connection arrangement 15 between the two support eyelets 17 of the second fastening member 14. The components of the storage compartment 11 are fastened to the second fastening member 14. This fastening mechanism 10 is configured as described above with reference to Figures 3 to 5.
[0068] As shown in Figure 6, the support structure 13 or the aircraft fuselage frame is surrounded by a shielding / separation layer 21 together with the first fastening member 12 attached thereto. In the areas of the fastening surfaces 12a, 22a and outside of these, the shielding / separation layer 21 extends continuously (without breaks or tears) between the first fastening member 12 and the first connecting member 22 in the connection configuration 15. In this way, the support structure 13 and the first fastening member 12 fastened thereto are completely and uninterruptedly shielded / separated from the connecting device 15 and the storage compartment 11 held therein. The shielding / separation layer 21 is configured to shield / separate heat and moisture.
[0069] In the embodiment of the fastening mechanism 10 shown in Figures 3 to 7, the connecting surfaces 22b and 23a for fastening the connecting members 22 and 23 to each other are oriented parallel to the fastening surfaces 12a and 22a between the first fastening member 12 and the first connecting member 22 in the assembled fastening mechanism 10.
[0070] Figure 8 shows a further embodiment of the fastening mechanism 10. Similar to the embodiments described above, the connection configuration 15 includes a first connecting member 22 and a second connecting member 23. These connecting members 22 and 23 can move relative to each other with two degrees of freedom, as shown in Figure 4 and described above. However, in the embodiment shown in Figure 8, the first connecting member 22 is in the form of a relatively thin plate that is mounted flat between the second connecting member 23 and the first fastening member 12.
[0071] There is a positional misalignment (offset) between the fastening surface 25 of the first fastening member 12 for fastening to the support structure 13 and the fastening surface 12a for fastening to the connecting device 15 or the first connecting member 22.
[0072] Here, as described above with reference to Figure 6, the isolation / separation layer 21 can be continuously positioned or installed between the first connecting member 22 and the first fastening member 12 in the connecting device 15. When installed, it can be positioned or installed to completely isolate / separate the first fastening member 12 and the support structure 13 fastened to it from the connecting device 15 in a continuous manner (without any breaks or tears).
[0073] Alternatively, the blocking / separation layer 21 shown in Figure 6 can be sandwiched between the support structure 13 and the first fastening member 12. For this purpose, the first fastening member 12 is screw-connected to the support structure 13.
[0074] The connecting surfaces for connecting the connecting members 22 and 23 to each other are formed by one side surface 22b of the first connecting member 22 and the opposite side surface 23a of the second connecting member 23. These connecting surfaces 22b and 23a are aligned parallel to the fastening surface 25 of the first fastening member 12 on the support structure 13. These connecting surfaces 22b and 23a are also formed parallel to the connecting surfaces 12a and 22a used to fasten the first connecting member 22 to the first fastening member 12.
[0075] In this embodiment as well, the first fastening member 12 is configured as an A-holder, and the second connecting member 23 is configured as a B-holder to be fastened to the storage compartment 11. The connecting members 22, 23, and the second fastening member 14 configured to be fastened to the storage compartment 11 are made of plastic, preferably fiber-reinforced, particularly carbon fiber-reinforced and / or glass fiber-reinforced plastic.
[0076] The present invention offers the following advantages in particular.
[0077] By dividing the fastening mechanism 10 into an A bracket and a B bracket, or an A holder and a B holder, it is possible to install a layer for blocking and separating the primary structure between the two brackets or holders while avoiding the formation of a gap in the blocking and separating layer. This prevents condensed water from entering the cabin.
[0078] The present invention also offers the further advantage that the fastening mechanism can be positioned and oriented in two directions, preferably perpendicular to each other. The opposing toothed portions allow for positional and oriented adjustment of the interface connecting to a ceiling-mounted container or overhead storage compartment (OHSC).
[0079] Furthermore, the internal components are isolated from noise and vibration. This is made possible by vibration dampers. The vibration dampers are preferably assembled to the B-holder or connecting member and secured to the B-holder by a simple snap-fit fastening ring. Such fastening makes it very easy to replace the vibration dampers after they have reached the end of their service life.
[0080] Standard, commercially available parts are used to mount the fastening mechanism 10 and its components. In other words, no special fastening means or specially developed bearings are required.
[0081] The present invention is based in particular on the concept of a bracket or fastener, each of which can be advantageously manufactured from fiber-reinforced plastic, particularly by an injection molding process.
[0082] To avoid the risk of corrosion that may arise from the combination of carbon fiber reinforced plastic and aluminum, the present invention proposes two possible solutions that can be combined with each other. On the one hand, a non-conductive material layer can be placed between the carbon fiber reinforced plastic and the aluminum to separate the materials. On the other hand, glass fiber reinforcement can be used instead of carbon fiber reinforcement.
[0083] To further enhance the load-bearing capacity and strength of fastening mechanisms, additional fiber inserts can be manufactured using overmolding technology. This overmolding technology further improves the load-bearing capacity of the holder or fastening mechanism components. Overmolding is an injection molding process in which one material is molded onto a second material. The second material is typically a rigid resin or plastic material. This allows the overmolded thermoplastic material to form a strong bond with the plastic, which can be maintained in the user environment.
[0084] Another advantage is that connection to the storage compartment or ceiling-mounted container can be done using simple, standard bolts. These bolts are preferably used to fasten two storage compartments or overhead storage compartments (OHSCs) to a bracket or holder. [Explanation of symbols]
[0085] 10 Fastening mechanism 11 storage compartments 12 First fastening member 12a Fastening surface to the connecting device 13 Support structures 14. Second fastening member 15 connected devices 16 Support eyelets 17 Support eyelets 18 fastening bolts 20 screws 21. Blocking / Separation Layer 22 First connecting member 22a Fastening surface for fastening to the first fastening member 22b Fastening surface to the second fastening member 23 Second fastening member 23a Fastening surface to the first fastening member 24 Fasteners or screws 25 Back surface or fastening surface of the first fastening member 26 Front view of the first connecting member 27 Rear view of the first connecting member 28 Front surface or connecting surface of the first connecting member 29 Toothed plate 120 Ceiling-mounted containers 101 First fastening member 102 Support structure or frame 103 Second fastening member 106 Third fastening member 107 Screws 108 Double Support Eyelet 109, 110 Further support eyelets 109, 110
Claims
1. A fastening mechanism for suspending and attaching a storage compartment in an aircraft or otherwise, comprising: a first fastening member (12) configured to be fastened to a support structure (13); a second fastening member (14) configured to be fastened to a storage compartment (11) for receiving articles; a connection device (15) configured to be surface-fastened to the first fastening member (12); and the connection device (15) and the second fastening member (14) each include support eyelets (16, 17) for receiving a fastening bolt (18) to fasten the connection device (15) to the second fastening member (14); the first fastening member (12) and the connection device (15) each have a fastening surface (12a, 22a) for mutual fastening, such that a continuous and extending blocking and separating layer (21) for blocking and separating the support structure (13) can be disposed between the fastening surfaces (12a, 22a) and / or between the support structure (13) and the first fastening member (12) to block and separate the support structure (13) from the connection device (15) over the entire surface. A fastening mechanism.
2. The connection device (15) includes a first connection member (22) and at least one second connection member (23), and these connection members (22, 23) are adjustable and fixable in their positions and postures relative to each other. The fastening mechanism according to claim 1.
3. The connection members (22, 23) each include a toothed connection surface (22b, 23a) for fastening to each other. The fastening mechanism according to claim 2.
4. The connection device (15) is made of plastic. The fastening mechanism according to claim 1.
5. Comprising a toothed plate (29) with a toothed portion; The toothed plate (29) is made of plastic and can be fastened to the toothed surface (28) of the toothed portion in the connection members (22, 23); In this way, the connection member (22) is fixed by the meshing of the toothed portions at a desired position and posture between the toothed plate (29) and the other connection member (23). The fastening mechanism according to claim 4.
6. The plastic is carbon fiber reinforced plastic and / or glass fiber reinforced plastic. The fastening mechanism according to claim 4.
7. The fastening mechanism according to any one of claims 1 to 4, characterized in that the first fastening member (12) is made of aluminum.
8. The fastening mechanism according to any one of claims 1 to 4, characterized by comprising a vibration damper (30) provided in at least one of the support eyelets (16, 17).
9. The fastening mechanism according to any one of claims 1 to 4, characterized in that the connection device (15) is manufactured by injection molding and / or overmolding.
10. The fastening mechanism according to claim 5, characterized in that the toothed plate (29) is manufactured by injection molding and / or overmolding.
11. The fastening mechanism according to claim 2 or 3, characterized in that, in a state where the fastening mechanism (10) is assembled, the connection surfaces (22b, 23a) between the connection members (22, 23) are oriented parallel to the fastening surface (25) for fastening the first fastening member (12) to the support structure (13).
12. The fastening mechanism according to claim 2 or 3, characterized in that, in a state where the fastening mechanism (10) is assembled, the connection surfaces (22b, 23a) between the connection members (22, 23) are oriented parallel to the fastening surfaces (12a, 22a) between the first fastening member (12) and the first connection member (22).
13. The fastening mechanism according to claim 2 or 3, characterized in that, in a state where the fastening mechanism (10) is assembled, the connection surfaces (22b, 23a) between the connection members (22, 23) are oriented perpendicular to the fastening surfaces (12a, 22a) between the first fastening member (12) and the first connection member (22).
14. The second connection member (23) is formed in a plate shape in at least a partial region, The fastening mechanism according to any one of claims 1 to 4, characterized in that the support eyelet (16) of the connection device (15) is formed in the plate-shaped region of the second connection member (23).
15. The second connection member (23) is formed flat, The fastening mechanism according to any one of claims 1 to 4, characterized in that it continuously narrows from a relatively wide portion within the region of the connection surface (23a) for connection to the first connection member (22) in the second connection member (23) to a relatively narrow portion where the support eyelet (16) of the connection device (15) is formed.