DE102008043448A1 - Holder arrangement for air or spacecraft, has structural element of air or spacecraft which has fastening section, where holder has lower portion and upper portion, and lower and upper portions are formed to clamp each other - Google Patents

Abstract

The holder arrangement has a structural element (22) of an air or spacecraft which has a fastening section (23). A holder has a lower portion (2) and an upper portion (8). The lower and upper portions are formed to clamp each other for the force-fit attaching to the fastening section of the structural element. A fixing bar (20) is connected with the fastening section of the structural element, where a fixing profile (21) is provided for a form-fit fixing of the holder to the structural element in the longitudinal direction.

Description

The The present invention relates to a holder assembly of a Aircraft or spacecraft and an aircraft or spacecraft.

such Holder arrangements are used in aircraft or spacecraft in the form of used different holding systems. Here are the different ones Holder to structural elements, such as Spante, Stringer, Floor crossmembers, floor support systems, Flat profiles and the like, attached to as a holder for various installation elements of the aircraft or spacecraft concerned serve. These installation elements can be different Be kind, such as cable ducts for electrical Lines, conduits for fluids, and others.

The Structural elements are generally made of metal and connected with rivets and bolts, however, is a use of Fiber composite components in aircraft construction, for example for skin fields and their stiffening by Stringer widespread. you will be for example, by vacuum infusion method for introducing a Matrix, for example, an epoxy resin, in semi-finished fiber products and subsequently hardened.

The Previous holder systems are attached to the structural elements so, that mounting holes are required in the structural elements, for example for rivet and / or screw connections. there it is disadvantageous that holes on the one hand a weakening mean the structural elements and on the other hand manufacturing costs with appropriate tools, such as drills, deburring and Require screwing or riveting tools. Appropriate cleaning work add extra time.

Solutions have been proposed in which mounting holes omitted. Describes this DE 42 08 494 C1 a holder for fixing an insulating mat for thermal insulation of an aircraft cabin. The holder is designed as a two-piece clip which can be placed on a stringer. This holder has a lower part with a trough for the stringer and a latchable closing part in the form of an upper part. The upper part has a stringer facing the rounding and an integrally formed compensating spring, wherein the upper part is clipped onto a retaining pin which is connected to the lower part.

to Mounting of installation elements with higher weight as insulating mats, this holder is less suitable because its clamping force be adapted accordingly, which takes up more space.

It Therefore, the object of the present invention, an improved To provide holder assembly, which does not have the above disadvantages has more or reduced to a considerable extent and creates additional benefits.

According to the invention This object is achieved by a holder assembly having the features of the claim 1 and an aircraft or spacecraft with the features of the claim 10 solved.

Accordingly, becomes a holder assembly of an aircraft or spacecraft with a structural element and provided to a holder. The holder has at least one lower part and at least one upper part, which for force-locking Attachment to a mounting portion of the structural element are formed clamped together. The Befestigungsab section is between the at least one lower part and the at least one Upper part can be clamped. The holder assembly is characterized that at least one with the attachment portion of the structural element in the longitudinal direction connectable fixing strip with a Fixing profile for positive fixing of the holder on the structural element in the longitudinal direction of the structural element is provided.

A basic idea of the invention is that with a Structural element clampable connectable holder assembly a fuse against slipping in the longitudinal direction of the structural element by a fixing strip or a fixing profile, wherein the Position of the holder assembly is freely selectable.

Consequently shows the present invention over the beginning One of the advantages of these approaches is that the holder assembly secured against slipping by the fixing strip is and for mounting installation elements also higher Weight is suitable.

Farther the structural elements do not suffer weakening due to mounting holes and the expensive and annoying process of tubing, in particular in fiber composite plastic components, such as CFRP (with carbon fibers reinforced plastic), is unnecessary.

One Another advantage is that the mounting of the holder essential is simplified by merely clamping and plugging. This easy handling is also a Vorrüstung of systems later in an aircraft or spacecraft to be installed, also possible.

The holders can be attached to structural elements made of both metal or fiber-reinforced plastics exist, be attached. They are also suitable as so-called CFK-fair design, since they are made of thermoplastics, polyamide, etc. can be produced.

Under Fastening portion is preferably a portion of a structural element to understand which is at the upper free end of the structural element for example, with its other end on a shell component is attached. The attachment portion can be folded over, bent over, L-shaped or designed differently. Also a structural element as a flat profile with a straight mounting section is possible.

In One embodiment, the fixing strip with the attachment portion the structural element are connected by means of suitable adhesive. alternative It is also possible that they are using suitable potting material is attached. This may be, for example, an epoxy resin. at Fiber composite components, it is possible that the fixing strip is attached with a resin.

In an alternative embodiment, the fixing strip is in one piece with the fixing profile on the attachment portion by means of a Casting molded. This can be done, for example, by means of a castable resin, especially when the structural element is made of CFK or the like. For a structural element made of metal, the casting process could by means of a Mehrkomponentenharzes take place, which for the corresponding Metal is suitable.

The Fixing profile can also be used with the fixing strip in the manufacture of the structural element of a fiber composite material with integrated be, for example, by pouring. It is also possible that the fixing profile is created by pouring resin. Furthermore, it is conceivable that the required fixing profile later molded in appropriate places using a mold becomes.

It is preferred that the fixing profile formed as a tooth profile is. Of course, other forms, such as Example serrated profile or the like, possible.

In an embodiment is provided that the at least one Top part of a top part holder with a retaining cheek and a support cheek for at least partially embracing the attachment portion, wherein the upper part receiving substantially to the attachment portion adapted, and wherein the retaining cheek for abutment on one side the fastening portion is provided. Thus, for example in an L-shaped mounting portion, the fixing strip or the fixing profile are applied to the fastening section, this together with the fixing strip or the fixing profile surrounded by the top part. The shell pickup is preferably provided with at least one Fixierrippe, which to the fixing profile corresponds. By an engagement between the at least one Fixing rib and the fixing profile is achieved that the holder in the longitudinal direction of the structural element positively is fixed because the fixing profile firmly connected to the structural element is. The fixing strip or the fixing profile guaranteed Thus, that the holder along the structural element in the longitudinal direction can not slip.

to Clamping of the holder to the structural element is provided that the at least one lower part at least one clamping cheek with a Investment profile to the plant on the side of the attachment section, which the top part and the support cheek opposite is located, and with an investment profile to the plant on the side of the fixing section, which lies opposite the retaining cheek, has. In order to it is possible by simply squeezing of upper part and lower part a deadlock of upper and lower part to cause the attachment portion of the structural element between upper and lower part frictionally by clamping is held.

A Clamping of upper and lower part is in one embodiment achieved by the support cheek of at least one upper part forms a wedge together with a locking cheek, which for cooperation with a corresponding terminal receiving the at least one lower part is provided, wherein the terminal receiving a ramp and the Clamping cheek is formed. Here are the ramp of the at least a lower part and the locking cheek of the at least one upper part formed with corresponding locking elements.

On this way it allows for when squeezing of upper and lower part of a locking or locking this Parts produced, for example, by screws or clips or snap connections can be secured.

A Clamping action is generated by the wedges thus formed, wherein in an embodiment of a system profile of the clamping cheek against one side of the mounting portion presses, the other Side of the upper part, the support cheek and the retaining cheek is acted upon by the force due to the clamping action and elasticity of the holder is generated.

In the case of a flat profile, for example, this is provided on its upper side with the fixing strip or the fixing profile. The upper part receiving is with their fixing ribs with the fixing in engagement, wherein the retaining cheek on one side of the fastener abutting section. On the other hand, the clamping cheek is on the one hand with the investment profile on the inside of the support cheek and on the other hand with a further, opposite investment profile on the attachment portion. By squeezing the upper and lower part of the clamping cheek of the base between the support cheek of the upper part and the mounting portion is pressed, wherein the retaining cheek of the upper part is pulled from the other side against the mounting portion. In this way it is possible to advantageously extend the field of application of the holder assembly according to the invention.

In a further preferred embodiment, the at least a lower part and / or the at least one upper part with at least a holder head receptacle provided for a holder head. The holder head is used to attach and hold different Installation elements and is adaptable to these, wherein the holder assembly can remain unchanged. Of the Holder head can be easily inserted into the holder head receptacle be and locks with a locking element in a locking portion the holder head holder. Thus, a number of holder components reduced and a modular concept with low number of parts at the same time easy attachment without tools allows.

One Positioning of the holder assemblies can be essentially freely selectable be executed, a limitation exists only by a Slope of the fixing profile. This results in a special flexibility.

One Slipping of the holder assembly along the structural element is prevented due to the fixing strip and the fixing profile, so that larger loads of installation elements (smaller ones, of course) can be recorded, wherein the clamping force of the holder assembly does not prevent slippage must be increased.

machining Processing of the structural element is completely eliminated thereby weakening the structural elements as well completely avoided. There are also the associated works such as deburring and cleaning no longer required. Furthermore, can on a kitten of boreholes also be waived since these are no longer available.

One Air or spacecraft has at least one holder assembly described above on.

The Invention will be described below with reference to exemplary embodiments with reference to the accompanying figures of the drawing closer explained.

From show the figures:

1 an exploded perspective view of an embodiment of a holder assembly according to the invention;

2 the embodiment according to 1 in a position just before cultivation;

3 the embodiment according to 1 in the mounted state;

4 an enlarged perspective view of an upper part with a holder head of the holder assembly according to the invention 1 ; and

5 a perspective view of two inventive holder assemblies on a fuselage structure of an aircraft or spacecraft.

In In the figures, the same reference numerals designate the same or the same function Components, unless stated otherwise. Farther are in the figures coordinate systems x, y, z for better orientation specified.

1 illustrates an exploded perspective view of an embodiment of a holder assembly according to the invention.

The holder assembly consists of a structural element 22 a holder 1 with lower part 2 a shell 8th and a fixation bar 20 , The structural element 22 Here is a frame with a straight web, which is mounted in a manner not shown on a shell component of an aircraft or spacecraft (not shown) and is made for example of a fiber composite plastic, such as CFRP. In its upper part has the structural element 22 a mounting area 23 on, which is first bent at right angles from the web and then in turn bent a short distance obliquely downwards with a radius.

The lower part 2 of the owner 1 has a base body which is perpendicular to the structural element 22 runs and on its top a ramp 4 and a clamping cheek 5 carries, which between them a V-shaped clamping receptacle 3 form. The ramp 4 and clamping cheek 5 are connected on their underside via a cross member, which is the main body of the lower part 2 belongs. The clamping cheek 5 owns (in the 1 ) to the left side to the V-shaped or wedge-shaped clamping receptacle 3 a rounded cross-section, which is substantially the obliquely bent down short piece of the mounting portion 23 equivalent. The to clamp recording 3 facing surface of the clamping cheek 5 is parallel to the structural element 22 running ribs provided with half-round cross section, which a investment profile 6 form. To the web of the structural element 22 Turned has the clamping cheek 5 a straight surface, which runs obliquely from top to bottom and on its underside a support profile 6 ' having semicircular cross-section. The support profile 6 ' runs parallel to the structural element 22 ,

On the outside of the base 2 is a holder head holder 7 attached, which has a receiving section 26 and locking sections 27 whose function will be explained in more detail below.

Basic body, ramp 4 , Clamping cheek 5 and retainer head receptacle 7 of the lower part 2 Here are connected by reinforcing webs and stiffened. The lower part 2 For example, can be made of plastic, for example a thermoplastic, polyamide, manufactured.

The top 8th is provided with a base body, which is also perpendicular to the structural element 22 is arranged and a downward facing upper part 9 owns that in the 1 to the right side by a down-facing retaining cheek 10 and to the left side by an obliquely extending from top to bottom left support cheek 11 is formed and limited. The retaining cheek 10 and support cheek 11 extend in the longitudinal direction of the structural element 22 , The support cheek 11 goes on its underside via a connecting web in an obliquely to the left above extending locking cheek 13 above, the upper end of the main body of the shell 8th is appropriate. The main body is with a holder head receptacle 7 connected here parallel to the main body of the shell 8th runs.

The top part 9 has a cross-section, which in this example substantially the cross-section of the attachment area 23 of the structural element 22 equivalent. On its inside upper side has the top part 9 fixing ribs 12 on which to a fixing profile 21 a fixing strip 20 correspond. The fixation bar 20 is on the attachment section 23 in the longitudinal direction of the structural element 22 attached, being between the attachment portion 23 and the top 8th is arranged. Their function will be explained in more detail below.

The support cheek 11 and the locking cheek 13 form a wedge which is V-shaped and to the V- or wedge-shaped clamping receptacle 3 of the lower part 2 corresponds. The locking cheek 13 has in this example at its running from top to bottom sides guide webs which guide grooves of the latching ramp 4 of the lower part 2 correspond. Furthermore, on the outside of the locking cheek 13 parallel to the main body of the upper part 8th extending latching elements 14 attached, which to Ra stelementen on the inside of the latching ramp 4 correspond (not shown, but easily imaginable).

The top 8th For example, it can also be made of plastic, for example a thermoplastic, polyamide.

The holder assembly 1 is at the attachment portion 23 of the structural element 22 so attached, that the lower part 2 from below with the clamp cheek 5 under the attachment section 23 is brought, wherein the obliquely downwardly bent piece of the attachment portion 23 about the investment profile 6 the clamping cheek 5 in the clamp receptacle 3 protrudes. This situation is in 2 in a perspective view 1 shown. The fixation bar 20 is on the attachment section 23 applied and firmly connected to it, for example by means of a suitable adhesive. You can also already during production of the structural element 22 be integrated in this. It is also conceivable that the fixing profile 21 made of resin in the structural element 22 integrated, for example cast. Also during assembly it may be possible to fix the profile 21 To mold by means of mold resin. Other attachment methods are possible.

The top 8th Now go to the attachment section 23 so upset that he is grabbed, with the retaining cheek 10 from the right outside (in the 2 ) at the attachment portion 23 abuts and the fixing ribs 12 with the fixing profile 21 the fixation bar 20 get in touch. At the same time it is out of supporting cheek 11 and locking cheek 13 formed wedge in the clamp receptacle 3 of the lower part 2 introduced. The locking cheek presses 13 against the ramp 4 , where at the same time the support cheek 11 on the outside of the obliquely downwardly bent piece of the attachment portion 23 pushes which inside of the investment profile 6 the clamping cheek 5 is applied. Further squeezing of shell 8th and lower part 2 causes the locking elements 14 between locking cheek 13 and ramp 4 lock. A clamping force between upper part 8th , Be fastening section 23 and lower part 2 is thereby reinforced and generates a non-positive clamping connection. This is the clamping cheek 5 also with the investment profile 6 ' at the attachment section 23 of the structural element 22 at. This state shows 3 in a further perspective view.

2 further shows a holder head 15 , the one main body 16 with a foot section 17 , a locking element 18 and holding elements 19 having. The top of the 2 shown holder head 15 is not yet in the holder head receptacle 7 of the top 8th pushed in, with another holder head 19 in the holder head receptacle 7 of the lower part 2 with his foot section 17 in the recording section 26 (please refer 1 ) is inserted and over the locking element 18 in the locking sections 27 the holder head holder 7 locked, as is easy to imagine.

3 shows the embodiment according to 1 and 2 when mounted, the lower holder head is not used. The holder 1 is with the attachment section 23 of the structural element 22 non-positively connected via the above-described deadlock. The engagement of the fixing ribs 12 of the top 8th with the fixing profile 21 the fixation bar 20 , which are fixed to the structural element 20 connected, fixes the shell 8th and thus the holder 1 with its lower part 2 such that it is in the longitudinal direction of the structural element 22 is fixed and can not slip. lower part 2 is with the shell 8th over the clamping connection and additionally by means of the guide webs of the locking cheek 13 in guide grooves of the ramp 4 in the longitudinal direction of the structural element 22 locked. top 8th and lower part 2 can be additionally secured by fasteners, such as screws and / or Klips- / snap connections.

4 shows an enlarged view of the upper part 8th with applied holder head 15 , The fixing ribs 12 in the top section 9 that by holding cheek 10 and support cheek 11 is vice, for engagement in the fixing profile 21 the fixation bar 20 are clearly visible. The fixing ribs 12 and the fixation profile 21 For example, it may be a tooth profile. The locking cheek 13 with the locking elements 14 is provided with two-sided guide webs. The locking elements 14 For example, they are designed as ratchet teeth, wherein they are not shown locking elements of the latching ramp 4 of the lower part 2 correspond. The components of the shell 8th are also like those of the lower part 2 reinforced and connected by bridges. The fixation bar 20 with the fixing profile 21 can be made of plastic, but also made of metal.

5 illustrates a perspective view of two inventive holder assemblies on a fuselage structure 29 an aircraft or spacecraft. The hull structure 29 may be, for example, a shell component, which by structural elements, such as Spant 24 and stringer 25 is stiffened. rib 24 and stringer 25 have fixing profiles on their upper side 21 on fixing strips 20 on. On the frame 24 are two holders described above 1 attached and against slipping in the longitudinal direction of the frame 24 through the fixing strip 20 with fixing profile 21 secured. The holders 1 are without fixing holes in the bulkhead 24 in principle attached to any position by clamping. The position is only due to the slope of the fixing profile 21 restricted to a certain small pitch. The holding elements 19 the holder heads 15 are doubly formed here and carry installation elements 28 , for example, lines for different media (electricity, fluids).

The attachment of the holder 1 on the stringer 25 , which is a flat profile, will be described below.

The top part 8th is with her fixation ribs 12 with the fixing profile 20 engaged, with the retaining cheek 10 on one side on the attachment section 23 is applied. On the other side is the clamping cheek 5 of the lower part 2 on the one hand with the investment profile 6 on the inside of the supporting cheek 11 on the other hand with the other, opposite investment profile 6 ' at the attachment portion 23 at. By squeezing the upper and lower part 8th and 2 becomes the clamping cheek 5 of the lower part 2 between the support cheek 11 of the top 8th and the attachment section 23 pressed, with the retaining cheek 10 of the top 8th from the other side against the attachment section 23 is pulled. In this way it is possible to advantageously extend the field of application of the holder assembly according to the invention.

Even though the present invention with reference to preferred embodiments described herein, it is not limited thereto but in many ways combinable and modifiable.

For example, the lower part 2 and the top 8th between the outer end of the ramp 4 and locking cheek 13 be captively interconnected by a thin plastic connection (for example, film bearing), which connection is so flexible that folding and pressing of the lower part 2 and top 8th is possible.

In a holder assembly of an aircraft or spacecraft with a structural element 20 is a holder 1 with at least one lower part 2 and at least one top 8th , provided, which for non-positive attachment to a mounting portion 23 of the structural element 22 are formed clamped together. The attachment section 23 is between the base 2 and the top 8th received. Furthermore, at least one with the attachment portion 23 of the structural element 22 in the longitudinal direction connectable fixing strip 20 with a fixing profile 21 for the positive fixing of the holder 1 on the structural element 22 in the longitudinal direction of the structural element 22 intended. An aircraft or spacecraft has at least one such holder arrangement.

1

holder

2

lower part

3

terminal receiving

4

Rest ramp

5

clamping beam

6

investment profile

7

Holder head socket

8th

top

9

Top receiving

10

holding cheek

11

supporting side

12

fixing rib

13

Rest cheek

14

locking element

15

holder head

16

body

17

foot section

18

locking

19

retaining element

20

cleat

21

fixing profile

22

structural element

23

attachment section

24

rib

25

Stringer

26

receiving portion

27

locking section

28

installation element

29

hull structure

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 4208494 C1 [0005]

Claims (10)

Holder arrangement of an aircraft or spacecraft, comprising: a structural element ( 20 ) of an aircraft or spacecraft which has an attachment section ( 23 ) having; a holder ( 1 ) with at least one lower part ( 2 ) and at least one upper part ( 8th ), which for frictional attachment to the attachment portion ( 23 ) of the structural element ( 22 ) are clamped together so that the mounting portion ( 23 ) is clamped between these, characterized in that the holder assembly at least one with the attachment portion ( 23 ) of the structural element ( 22 ) in the longitudinal direction connectable fixing strip ( 20 ), which has a fixing profile ( 21 ) for the positive fixing of the holder ( 1 ) on the structural element ( 22 ) in the longitudinal direction of the structural element ( 22 ). Holder arrangement according to claim 1, characterized in that the fixing strip ( 20 ) with the fixing profile ( 21 ) with the attachment section ( 23 ) of the structural element ( 22 ) is connectable by means of suitable adhesive and / or potting material or is formed by means of a casting process. Holder arrangement according to at least one of the preceding claims, characterized in that the fixing profile ( 21 ) is designed as a tooth profile. Holder arrangement according to at least one of the preceding claims, characterized in that the at least one upper part ( 8th ) a top part ( 9 ) with a retaining cheek ( 10 ) and a supporting cheek ( 11 ) for at least partially embracing the attachment section ( 23 ), wherein the upper part receptacle ( 9 ) substantially to the attachment portion ( 23 ), and wherein the retaining cheek ( 10 ) for engagement with one side of the attachment section ( 23 ) is provided. Holder arrangement according to claim 4, characterized in that the upper part receiving ( 9 ) for at least partially embracing the attachment section ( 23 ) and the fixing profile ( 21 ) with at least one fixing rib ( 12 ), which leads to the fixing profile ( 21 ) corresponds. Holder arrangement according to claim 4 or 5, characterized in that the at least one lower part ( 2 ) at least one clamping cheek ( 5 ) with an investment profile ( 6 ) for engagement with the side of the attachment section ( 23 ), which is the top part ( 9 ) and the supporting cheek ( 11 ) or against the support cheek ( 11 ), and with an investment profile ( 6 ' ) for engagement with the side of the attachment section ( 23 ), which the retaining cheek ( 10 ) is opposite. Holder arrangement according to at least one of claims 4 to 6, characterized in that the supporting cheek ( 11 ) of the at least one upper part ( 8th ) together with a locking cheek ( 13 ) forms a wedge, which for cooperation with a corresponding terminal receiving ( 3 ) of the at least one lower part ( 2 ) is provided, wherein the clamping receptacle ( 3 ) from a ramp ( 4 ) and the clamping cheek ( 5 ), wherein the latching ramp ( 4 ) and the locking cheek ( 13 ) with corresponding locking elements ( 14 ) are formed. Holder arrangement according to at least one of the preceding claims, characterized in that the at least one lower part ( 2 ) and the at least one upper part ( 8th ) are connectable by means of a clip and / or snap connection. Holder arrangement according to at least one of the preceding claims, characterized in that the at least one lower part ( 2 ) and / or the at least one upper part ( 8th ) with at least one holder head receptacle ( 7 ) for a holder head ( 17 ) are provided. Air or spacecraft with at least one holder assembly according to at least one of the preceding claims.