DE102009028529B4 - DIN rail device for supporting a module of an aerospace vehicle - Google Patents

Abstract

Support rail device (1) for carrying a module, in particular a seat device, in an aircraft and spacecraft (2), comprising: a support rail element (5) having a fastening section (12); at least one connection element (6) for connection of the fastening section (12) of the support rail element (5) to the aircraft and spacecraft (2); and at least one coupling element (7) for coupling the fastening section (12) to the at least one connection element (6); wherein the support rail element (5) is designed as a hollow chamber profile with a hollow chamber (9) for at least partially receiving the at least one coupling element (7), characterized in that the at least one coupling element (7) has a cardan joint unit (8), the cardan joint unit ( 8) has a horizontal joint (31) and a vertical joint (32), the joint axes of the joints (31, 32) intersecting at a common point of intersection.

Description

The invention relates to a mounting rail device for supporting a module, in particular a seat device, in an aircraft and spacecraft according to the preamble of claim 1.

Such mounting rail devices are used, for example, in military aircraft for attaching particularly simple and lightweight, preferably folding seats in the longitudinal direction of the fuselage. The seats are often mounted on seat couplings and straps on the DIN rail device.

A module here is not only to be understood as seats, but also, for example, appliances, equipment, freight, installations and the like.

In 1 is a schematic perspective view of a DIN rail device 1 illustrated in the prior art. It is merely an example shown a section, wherein the mounting rail device 1 can extend over a greater length. The DIN rail device 1 here has a lower rail element 16 , a middle rail element 17 and an upper rail member 18 on. These rail elements 16 . 17 . 18 are vertical with supports 25 connected and on a fuselage section three an only indicated aircraft and spacecraft 2 with coupling devices 21 . 22 here on frames 4 attached and form a so-called Lininggerüst.

The lower rail element 16 serves as a seat rail with a seat coupling over it 24 attached seat 19 , The seat 19 is about supporting elements 20 For example, straps, with the upper rail element 18 via connection facilities 23 connected. The middle rail element 17 serves here, for example, to stiffen the mounting rail device 1 , The rail elements 16 . 17 . 18 are for attaching fastening components such as connecting devices 23 , Seat couplings 24 , u. Like. Provided. This is in 2 a partial cross section of a rail element 16 . 17 . 18 with a usual fastening component 33 shown.

The fastening component 33 has a foot 34 on, which is provided with a profile, which is a profile of a receiving section 10 of the rail element 16 . 17 . 18 corresponds. With the foot 34 is the fastening component 33 in the recording section 22 used.

By one on the fastening component 33 applied load, a force F (here in the y-direction or transverse direction) is introduced, which via a lever arm L generates an additional torsional moment about the x-axis (longitudinal direction), which of the rail element 16 . 17 . 18 must be recorded.

The publication DE 10 2007 011 620 A1 describes a lining framework for an airplane.

The very high operating loads in y- and z-direction (high direction) require a rigid connection of both axes. On the fuselage side, very high deformations can occur in both axles. The seat rails, ie here the lower rail elements are separated in the direction of flight (x-direction) at a certain distance to the different thermal expansions in the direction of flight between seat rail and outer skin, ie the body portion three , to compensate. This results in an expansion joint with a width, z. B. +/- 4 mm, which makes it much more difficult or impossible in the region of the separation point a seat attachment via a fastening component. Since the high offset torque must be transmitted via an open profile, very high deformations can occur.

The DE 10 2008 041 257 A1 discloses a load introduction structure, in particular a lining scaffolding for an aircraft with two side scaffolds, which are arranged opposite to both side regions of a fuselage cell structure of the aircraft and which connect to a continuous floor surface, wherein the load introduction structure of the fuselage cell structure of the aircraft is largely decoupled to load-induced and / or thermally induced deformations, in particular to compensate for changes in length of the fuselage cell structure.

The US 4 648 570 A discloses a support structure for supporting interior elements of an aircraft within a fuselage of the aircraft, having a plurality of longitudinal sections arranged end-to-end along a common longitudinal axis, a pull-in / pull-in connection which connects each such section and each adjacent section, to allow axial slippage of each of these sections relative to the other sections, connects a plurality of diagonal struts, each of which corresponds to each such connection, each of such struts having a first end which is contiguous to one another Position before and close to the corresponding connection non-translationally connected to one of these sections, and a second end which is non-translationally connected to the hull at a position behind the corresponding connection and means for reacting vertical and side loads, wherein ax ial loads on the sections cause the sections to slip axially relative to each other, and the axial loads from the sections to the diagonal struts are transferred and act through or on the hull.

Against this background, the object of the present invention is to provide a less expensive and improved mounting rail device, in particular for the aerospace industry.

According to the invention this object is achieved by a mounting rail device with the features of claim 1.

Accordingly, a mounting rail device of an aerospace vehicle is provided. It comprises: a mounting rail member having a mounting portion; at least one connection element for connecting the fastening section of the carrier rail element to the aircraft and spacecraft; and at least one coupling element for coupling the carrier rail element to the at least one connection element. The at least one coupling element has a universal joint unit

One of the ideas underlying the present invention is that the DIN rail element is coupled with coupling elements with universal joint with at least one connection element.

Thus, the present invention over the approaches mentioned above has the advantage that both different thermal expansion in the direction of flight between the seat rail and outer skin can be compensated, and joints with a small gap can be achieved.

Furthermore, fastening components can also be arranged in the region of joints.

The coupling element allows with the integrated universal joint decoupling by rotatability about two axes.

In the dependent claims are advantageous embodiments and improvements of the present invention.

The support rail element is designed as a hollow chamber profile with a hollow chamber for at least partially receiving the coupling elements. This results in a compact design.

The hollow chamber further allows a displacement of the mounting rail element in the longitudinal direction relative to the connecting element. In this case, the coupling element can be displaceable in the hollow chamber or in the connection element.

The coupling element has a mounting rail coupling section for coupling to the mounting rail element and in each case a connection coupling section for coupling to a coupling receptacle of the at least one connection element.

The cross section of the hollow chamber profile acts as a guide for the displaceable coupling element, which is guided by coated or self-lubricating guide elements displaceable in the x direction (flight direction). The result is a displacement in the y- and z-direction, which can compensate for the deformations of the hull. Due to the positive guidance, the torsion can be optimally transferred. Loads in y- and z-direction are transmitted from the support rail element in execution as a hollow chamber profile as a beam on two supports. Loads in the x-direction are transmitted positively after closing the parting line.

In one embodiment, the universal joint unit is integrated in the connection coupling section, in an alternative embodiment in the mounting rail coupling section. This results in a very compact construction.

The cardan joint unit has a vertical joint and a horizontal joint, one of which is fixed for locking the coupling element in the x direction on the coupling receptacle or alternatively on the mounting rail element. Additional fasteners and additional installation and installation effort is reduced.

It is particularly advantageous that the DIN rail element is designed as an extruded profile, which reduces assembly costs and a number of parts.

A mounting rail, which extends over several frames away, is divided by rail in mounting rail elements. Right and left of a connection piece on a frame, the coupling elements are first inserted and fixed. Then the DIN rail elements can be easily pushed onto the coupling elements. The segmentation produces, for example, 4.5 m 18 separation points with a gap of approximately 0.25 mm, which is no longer an obstacle to an arrangement of a fastening component. Each separation point has two hinge points, which can thus be referred to as articulated chain of sub-segments.

The invention will be explained in more detail with reference to the embodiments illustrated in the schematic figures of the drawing. It shows:

1 a schematic perspective view of a mounting rail device according to the prior art;

2 a cross section of a rail element with a conventional fastening component;

three a schematic, exploded perspective view of an embodiment of a DIN rail device according to the invention;

4 a cross-sectional view of a DIN rail element;

5 a front view of an exemplary connection element;

6 a schematic sectional view of an exemplary built-coupling element with a separation point;

7 a schematic sectional view taken along line AA 6 ; and

8th a schematic view from direction B to 6 ,

In all figures of the drawing are the same or functionally identical elements - unless otherwise indicated - have been provided with the same reference numerals.

Coordinates x, y and z are used to facilitate orientation. In this case, the x-coordinate extends in the longitudinal direction, the y-coordinate in a width direction and the z-coordinate in a height direction of an only indicated aircraft and spacecraft 2 ,

The 1 and 2 have already been described above.

three shows a schematic, exploded perspective view of an embodiment of a DIN rail device according to the invention 1 ,

Between two frames 4 a hull section three an only indicated aircraft and spacecraft 2 is the DIN rail device 1 with a DIN rail element 5 (eg lower rail element 16 in 1 ) arranged. The DIN rail element 5 is on frames 4 of the fuselage section three via connection elements 6 appropriate. The connection elements 6 are adapted to the respective frame contour and connected to it in a suitable manner (see also 5 ). Each end of the DIN rail element 5 is in each case via a coupling element 7 with a connection element 6 connected.

For this purpose, the DIN rail element 5 Attachment sections at each end 12 on, which with a cross section of a DIN rail coupling portion 11 of the respective coupling element 7 positively in the x direction are connected to each other. Every connection element 6 has similarly trained coupling receptacles 14 for a respective connection coupling section 13 of each coupling element 7 which are also positively connectable with each other.

In this example, the DIN rail coupling sections 11 and connecting couplers 13 the coupling elements 7 corresponding to the attachment sections 12 of the DIN rail element 5 and the coupling shots 14 the connection elements 6 essentially square cross-sections, which are telescopically.

Furthermore, the DIN rail coupling section 11 of the coupling element 7 with the respective connection coupling section 13 of the same coupling element 7 via a cardan joint unit 8th hingedly connected, which will be explained in more detail below.

The DIN rail element 5 is formed in this example as a hollow chamber profile, which is a hollow chamber 9 has, extending in the longitudinal direction (in the x direction) of the DIN rail element 5 extends. This hollow chamber 9 forms at the ends of the DIN rail element 5 each the attachment section 12 for the respective coupling element 7 , On top of the DIN rail element 5 is a recording section 10 for fastening components 33 (please refer 2 ) in the longitudinal direction of the carrier rail element 5 formed. Also the connection elements 6 have such a receiving section 10 on, thus the receiving section 10 of the DIN rail element 5 each continues.

Also the coupling shots 14 the connection elements 6 have corresponding hollow chamber 9 for receiving the coupling pieces 7 on.

This lower seat rail of the mounting rail device 1 is split over its entire course. Right and left of a connection element 6 on a frame 4 become the DIN rail elements 5 on the in the connection elements 6 used coupling pieces 7 postponed. The DIN rail elements 5 remain displaceable in the x-direction, whereby a longitudinal expansion is possible. In addition, the universal joint units allow 8th in the coupling pieces 7 one rotation about the y-axis and z-axis. Each coupling piece 7 forms with the cardan joint unit 8th thus a zweigelenkige separation point between mounting rail element 5 and attachment element 6 , These lower seat rail assembly may thus also be referred to as articulated chain of sub-segments.

4 shows a cross-sectional view of a DIN rail element 5 in training a hollow chamber profile. It is considered to be a symmetrical profile with two support sections extending here in the y-direction 26 formed, which each have at their outer ends a bend of short length in the z-direction. These bends have a thickness that is about twice as large as that of the support sections 26 , In a middle section between the support sections 26 is on one side of the receiving section 10 formed. On the opposite side is the DIN rail element 5 in its middle section with a hollow profile section 27 provided, which the hollow chamber 9 has, which is formed substantially rectangular.

The recording section 10 has an upside-down T-slot (see also 2 ) for receiving fastening components 33 (see also 2 ) on. The outsides of the receiving section 10 aligned in z-direction with the outer sides of the hollow section section 27 , The recording section 10 extends here over the entire length of the DIN rail element. But it is also possible that he only partially on the mounting rail element 5 is formed. He can also be left out.

The DIN rail element 5 is preferably an extruded profile, for example of a metallic material such as an aluminum and / or titanium alloy.

A front view of an exemplary attachment element 6 is in 5 shown. The attachment element has a body on the toward the Spants 4 extends and whose outer contour has (not shown, but easily imaginable). This body has a attachment attachment portion 29 on, with which the attachment element 6 on the frame 4 , for example by means of screws and / or rivets, is attached. Transverse to the body are extending in the x direction coupling seats 14 attached, which on its upper side with the receiving portion 10 are formed. The coupling receptacles each have a coupling attachment portion 28 in its interior, which as a hollow chamber 9 is formed.

6 shows a schematic sectional view of an exemplary built-in coupling element 7 with a separation point.

It is here only one side of the connection element 6 with his coupling pickup 14 shown. The other side to the right is constructed in the same way and therefore easy to imagine.

The coupling element 7 is with its mounting rail coupling section 11 in the hollow chamber 9 of the attachment section 12 of the DIN rail element 5 , of which only one end section is shown here, used. In this case, between the outer surfaces of the mounting rail coupling portion 11 and the inner surfaces of the hollow chamber 9 each guide elements 30 for guiding and supporting the DIN rail coupling section 11 in the hollow chamber 9 arranged (see also 8th ). They can be made of a suitable plain bearing material. The DIN rail coupling section 11 has here a cavity which extends in the direction of the support rail element 5 opens. This cavity can serve to save weight.

The connection coupling section 13 of the coupling element 7 is in which the coupling receptacle 14 of the connection element 6 added. The cardan joint unit 8th is between the connection coupling section 13 and the DIN rail coupling section 11 arranged such that they in this example in the coupling attachment section 28 of the connection element 6 is located and locked with this locked in the x direction. This is a vertical joint 32 in the form of a bolt through holes in the walls of the coupling receptacle 14 used and thus forms the locking of the coupling element 7 in the x-direction, while allowing a rotation about the z-axis. Right angle to this is a hollow shaft piece as a horizontal joint 32 arranged to allow rotation about the y-axis and as part of the gimbal unit 8th with the coupling piece 7 connected.

between the end of the DIN rail element 5 and the opposite end of the coupling receptacle 14 is the separation point between the DIN rail element 5 and the attachment element 6 formed with a distance D, which is a longitudinal extension of mounting rail element 5 and attachment element 6 in the x direction. This distance D is, for example, 0.25 mm and is thus of an order of magnitude that is an arrangement of a fastening component 33 allowed in this area.

6 further shows that the receiving section 10 of the DIN rail element 5 through the receiving section 10 of the coupling section 14 of the connection element 6 are close to each other and separated only by the distance D, whereby they are substantially continuous in the x direction.

A schematic sectional view taken along line AA 6 is in 7 shown and shows the Cardan joint unit in x-direction to the DIN rail element 5 seen out.

The horizontal joint 32 is rotatable as a pipe piece about the y-axis and about the z-axis, wherein the vertical joint 31 in the connection element 6 (please refer 6 ) is fixed.

Further shows 7 in that on all four outer surfaces of the DIN rail coupling section 11 guide elements 30 are arranged.

A view from the opposite direction B (off 6 ) finally shows 8th with view in x-direction to the connection element 6 out.

The cross section of the hollow chamber profile 27 acts as a guide for the sliding coupling element 7 , which by coated or self-lubricating guide elements 30 slidably guided in the x-direction (flight direction). The result is a displacement in the y- and z-direction, which can compensate for the deformations of the hull. Due to the positive guidance, the torsion can be optimally transferred. Loads in the y and z directions are from the DIN rail element 5 in execution as a hollow chamber profile as a beam on two supports transmitted. Loads in the x-direction are transmitted in a form-fitting manner after closing the gap (distance D).

The DIN rail device 1 is used for attaching seats 19 , But it can also be used to hold other items, such as cargo and / or equipment of the passengers.

The DIN rail device 1 can of course also the middle and / or upper rail element 17 . 18 include.

Instead of the hollow profile section 24 Of course, another profile section may be formed, such as a triangular or polygonal. Also stiffening ribs are possible. Of course, the support sections 26 have different configurations, such as hollow cross-sections in the longitudinal direction (x-direction) and / or stiffening ribs, etc.

It is also possible that the DIN rail element 5 only one-sided with the coupling element 7 with a connection element 6 is coupled, wherein the other end is attached or free in other ways.

Of course, instead of the connecting element 6 another component with the same coupling receptacle 14 to be available.

It is also conceivable that several mounting rail elements 5 with each other with the coupling elements 7 can be coupled.

The cardan joint unit 8th can also in the attachment section 12 of the DIN rail element 5 be arranged and fixed there.

It is also possible that the horizontal joint 32 instead of the vertical joint 31 for locking the coupling element 7 is fixed in the x direction.

The invention provides a DIN rail device 1 for carrying a module of an aerospace vehicle 2 and comprising: a mounting portion 12 having support rail element 5 ; at least one connection element 6 for connection of the fastening section 12 of the DIN rail element 5 to the aircraft and spacecraft 2 ; and at least one coupling element 7 for coupling the mounting rail element 5 to the at least one attachment element 6 , The at least one coupling element 7 has a cardan joint unit 8th on.

LIST OF REFERENCE NUMBERS

1

Support rail means

2

Aircraft and spacecraft

3

fuselage section

4

rib

5

Rail element

6

connecting element

7

coupling element

8th

Kardangelenkeinheit

9

hollow

10

receiving portion

11

Rail coupling section

12

attachment section

13

Connection coupling section

14

Koppel recording

15

Rail framework

16

Lower rail element

17

Middle rail element

18

Upper rail element

19

Seat

20

supporting member

21

Lower coupling device

22

Upper coupling device

23

connection device

24

seat coupling

25

support

26

support section

27

Hollow section

28

Coupling attachment section

29

Connection attachment section

30

guide element

31

Horizontal joint

32

vertical joint

D

distance

x, y, z

coordinates

Claims (10)

DIN rail device ( 1 ) for carrying a module, in particular a seat device, in an aircraft and spacecraft ( 2 ), comprising: a fixing section ( 12 ) has carrier rail element ( 5 ); at least one attachment element ( 6 ) for connecting the fastening section ( 12 ) of the DIN rail element ( 5 ) to the aircraft and spacecraft ( 2 ); and at least one coupling element ( 7 ) for coupling the attachment portion ( 12 ) to the at least one attachment element ( 6 ); wherein the DIN rail element ( 5 ) as a hollow chamber profile with a hollow chamber ( 9 ) for at least partially receiving the at least one coupling element ( 7 ), characterized in that the at least one coupling element ( 7 ) a universal joint unit ( 8th ), wherein the universal joint unit ( 8th ) a horizontal joint ( 31 ) and a vertical joint ( 32 ), wherein the joint axes of the joints ( 31 . 32 ) at a common intersection. DIN rail device ( 1 ) according to claim 1, characterized in that the DIN rail element ( 5 ) relative to the at least one attachment element ( 6 ) is displaceable in the longitudinal direction. DIN rail device ( 1 ) according to claim 2, characterized in that the DIN rail element ( 5 ) relative to the at least one coupling element ( 7 ) is displaceable in the longitudinal direction. DIN rail device ( 1 ) according to at least one of the preceding claims, characterized in that the at least one coupling element ( 7 ) a DIN rail coupling section ( 11 ) for coupling with the DIN rail element ( 5 ) and a connection coupling section ( 13 ) for coupling to a coupling receptacle ( 14 ) of the at least one attachment element ( 6 ) having. DIN rail device ( 1 ) according to claim 4, characterized in that the DIN rail coupling section ( 11 ) and / or the connection coupling section ( 13 ) Outer surfaces with applied or integrated guide elements ( 30 ) exhibit. DIN rail device ( 1 ) according to claim 4 or 5, characterized in that the gimbal unit ( 8th ) in the connection coupling section ( 13 ) is integrated. DIN rail device ( 1 ) according to claim 6, characterized in that the vertical joint ( 31 ) or the horizontal joint ( 32 ) for locking the at least one coupling element ( 7 ) in the longitudinal direction (x) of the DIN rail device ( 1 ) at the coupling receiver ( 14 ) is fixed. DIN rail device ( 1 ) according to claim 5, characterized in that the gimbal unit ( 8th ) in the DIN rail coupling section ( 11 ) is integrated. DIN rail device ( 1 ) according to claim 8, characterized in that the vertical joint ( 31 ) or the horizontal joint ( 32 ) for locking the at least one coupling element ( 7 ) in the longitudinal direction (x) of the DIN rail device to the DIN rail element ( 5 ) is fixed. DIN rail device ( 1 ) according to at least one of the preceding claims, characterized in that the carrier rail element ( 5 ) is designed as an extruded profile.

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