EP2125521A1 - Dispositif unique de deploiement et reploiement d'appendices spatiaux - Google Patents
Dispositif unique de deploiement et reploiement d'appendices spatiauxInfo
- Publication number
- EP2125521A1 EP2125521A1 EP08718204A EP08718204A EP2125521A1 EP 2125521 A1 EP2125521 A1 EP 2125521A1 EP 08718204 A EP08718204 A EP 08718204A EP 08718204 A EP08718204 A EP 08718204A EP 2125521 A1 EP2125521 A1 EP 2125521A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- rotation
- coupling means
- stop
- deployment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/222—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles for deploying structures between a stowed and deployed state
- B64G1/2229—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles for deploying structures between a stowed and deployed state characterised by the deployment actuating mechanism
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/66—Arrangements or adaptations of apparatus or instruments, not otherwise provided for
Definitions
- the field of the present invention is that of equipment for space applications, such as for example that of the manufacture of satellites, and in particular devices for deployment in rotation of spatial appendages.
- reflectors In space applications it is necessary to be able to orient certain elements of a satellite or spacecraft referred to here as reflectors, such as an antenna, a mast, etc., in a predetermined direction in order, for example, to direct them towards a fixed star, to keep a pointing towards a point on the surface of the earth, or even to sweep a particular zone on the surface of the earth or of any star.
- These reflectors are placed in the folded position during the launch of the satellite to occupy less space and integrate into the general shape of the launcher. Once in orbit, these reflectors are deployed to perform their function.
- a known solution consists in the use of a mechanism dedicated to each reflector. This solution is not optimal from the point of view of cost, mass and size, but also from the point of view of the complexity of the deployment and repositioning operations of the different reflectors.
- the present invention aims to overcome these disadvantages by providing a unique mechanism for the deployment and folding reflectors.
- the subject of the invention is a device for deploying and deploying appendices of space systems comprising at least one support carrying an appendix to be deployed, mobile about an axis of rotation, and an actuator equipped with a fitting causing said support in rotation through a coupling means characterized in that said coupling means is adapted in a rotational direction to cooperate with at least one support for driving said causing said support to rotate and not to cooperate with said supports in the opposite direction of rotation.
- the coupling means is a movable stop having a face oriented radially with respect to the axis of rotation and a face inclined with respect to said radial orientation and in which the support carries a ratchet extending radially under the action of an elastic means so as to interfere with the stroke of the movable stop.
- the support carries a stop and the coupling means is a pawl having a face oriented radially with respect to the axis of rotation and a face inclined with respect to said radial orientation and extending radially under the action of an elastic means so as to interfere with the stroke of said stop.
- the at least one support is permanently urged in rotation towards a fixed abutment in a direction opposite to that of driving by the coupling means. This configuration avoids having to provide a command for the return of an appendage to its storage position.
- the fixed stops and the supports do not move in the same planes so as not to achieve mechanical interference between the various elements.
- the appendages or their supports carry at least one association abutment fixed to a first appendix or support and capable of interfering with the stroke of a second appendix or support so as to cause this second appendix or support when driving said first appendix or support by the coupling means.
- association abutment is retractable on command of the operator so as to be able to engage an appendix placed downstream of the selected appendix or not to engage it and leave it in the storage position.
- the actuator is disengageable so as to be able to isolate it from the fitting of the actuator, and in which the device comprises a second disengageable actuator for providing redundancy to the space system.
- the invention also relates to a device for deploying and folding a spatial system appendix comprising at least one support (2) carrying an appendix (1) to be deployed, mobile about an axis of rotation (4), and an actuator provided with a fitting (10) driving said support in rotation through a coupling means (9) characterized in that said coupling means is adapted in a direction of rotation to cooperate with the support ( 2.1, 2.2, 2.3) for driving said support in rotation and for not cooperating with said support in the opposite direction of rotation and in which the coupling means is a movable stop (9) having a face oriented radially relative to the axis of rotation and a face inclined with respect to said radial orientation and in which each support (2) carries a pawl (7) extending radially under the action of an elastic means (8) so as to interfere with the travel of the movable stop (9); or in which each support (2) carries a stop and in which the coupling means (9) is a pawl (7) having a face oriented radially with respect to the
- FIG. 1 is a schematic view of a deployment device / folding according to one embodiment of the invention
- FIG. 2 is a schematic three-step view of the deployment of a reflector using a deployment / folding device according to the invention
- FIG. 3 is a schematic three-step view of the folding of a deployed reflector and the deployment of three reflectors with the aid of a deployment / folding device according to the invention
- a deployment and folding device with three deployable appendages 1, such as reflectors (referenced 1.1, 1.2 and 1.3 in FIG. 1), folded in their storage position for the start.
- These reflectors are carried by three supports 2, able to be driven in rotation about an axis of rotation 4 and carrying a ratchet device 7.
- these supports 2 are held in abutment against stops 3 fixed in relation to the wall of the satellite 5.
- These supports are respectively held in abutment against their abutment by means of return mechanisms, of the torsion spring type (not shown) which constantly tend to return the reflectors 1 to their storage position. .
- Each support 2 consists of a body serving as a stop against the fixed stop 3 and an arm carrying an axis of rotation 6 around which a pawl 7 rotates.
- the pawl is held in extension by an elastic means such that a spring 8 which tends to move it away from the body of the support 2, so that it interferes with the travel of an abutment 9, itself mobile in rotation about the axis of rotation 4.
- the pawl 7 presents a face oriented radially with respect to the axis of rotation 4 in order to provide, in one direction of rotation, a bearing face for the movable stop 9 and, in the opposite direction of rotation, an inclined face on which the movable stop the actuator can slide to compress the spring 8 and push the pawl 7 out of its way.
- the movable stop 9 is carried by a fitting 10 of a rotary actuator, not shown, rotating about the axis of rotation 4, and acts as a coupling means between the fitting 10 and the support 2. It is capable of rotating in both directions of rotation and perform a complete turn to get into any position that the operator may wish.
- the selection phase of the reflector 1 and its deployment from its storage position to the deployed position is seen with the aid of the movable stop 9 and the pawl 7 associated with the reflector 1.1, which will be hereinafter referred to 7.1.
- FIG. 3 we see the phases of folding of the reflector 1 and simultaneous deployment of the three reflectors 1.1, 1.2 and 1.3 by the movable stop 9 and its action on the three pawls 7.1, 7.2 and 7.3.
- the invention provides that the fixed stops 3 and the supports 2 do not move in the same planes.
- the reflectors are further provided with interreflector association stops (not shown in the figures) positioned on the reflectors or on the supports which drive them.
- the association abutment fixed on a first reflector driven by the movable stop makes it possible to drive in rotation, either directly or via second association stops, second reflectors, not selected by the movable stop but which is located downstream of the selected reflector, in the driving direction by the movable stop 9.
- the three reflectors 1.1, 1.2 and 1.3 have such sizes that they interfere mechanically with each other. It is then possible to deploy the reflector 1.3 while also deploying the reflectors 1.1 and 1.2.
- the invention can also be implemented with reflectors that do not interfere mechanically with each other. It is then possible to deploy and selectively fold the various reflectors.
- the interreflector association stops are retractable on command of the operator, so as to be able to engage a reflector placed downstream of the selected reflector or not to engage it and leave it in the storage position.
- a combination on the positions of activation or deactivation of the interreflector association stops is within the reach of a person skilled in the art to find the configuration where only the interesting reflectors will be actuated by the movable stop 9.
- the operator triggers the folding of the reflector as described above by rotating the fitting 10 in the counterclockwise direction and passes the movable stop 9 through the pawls of the two supports 2.2 and 2.3. It then reverses the direction of rotation of the fitting 10 until the movable stop 9 comes to bear on the face radial ratchet 7.3.
- Continued rotation of the fitting then causes rotation of the reflector 1.3 towards its deployed position, in which it will remain, held in place by the opposite actions of the movable stop 9 and the return mechanism of the reflector 1.3. Due to the interreflector association stops that exist between the reflector 1.3 and the two reflectors 1.1 and 1.2, the rotation of the support 2.3 causes that of the supports 2.1 and 2.2 and therefore the deployment of the reflectors 1.1 and 1.2.
- the device presented makes it possible to deploy the reflectors 1.1 alone, 1.1 in combination with 1.2, or 1.1 in combination with 1.2 and 1.3, that is to say a reflector with all those located downstream, by a simple command on the angle of rotation of the fitting 10.
- the operator has the ability to control the introduction or retraction of interreflector association stops it becomes possible to deploy with the stop mobile 9 as the combination of the desired reflectors.
- the movable stop 9 is replaced by a pawl fixed on the fitting 10 of the actuator.
- the movable pawls 7 of the supports 2 are in this case replaced by abutments linked to the support 2. It is then the pawl on the fitting which is able to fade when the fitting is rotated to pass under the abutments. related to the reflector supports.
- the actuator is disengageable so as to isolate it from the fitting of the actuator.
- a second actuator, also disengageable, is then introduced to provide redundancy to this space system.
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0754049A FR2914277B1 (fr) | 2007-03-27 | 2007-03-27 | Dispositif unique de deploiement et reploiement d'appendices spatiaux. |
| PCT/EP2008/053525 WO2008125439A1 (fr) | 2007-03-27 | 2008-03-26 | Dispositif unique de deploiement et reploiement d'appendices spatiaux |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2125521A1 true EP2125521A1 (fr) | 2009-12-02 |
Family
ID=38663020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08718204A Withdrawn EP2125521A1 (fr) | 2007-03-27 | 2008-03-26 | Dispositif unique de deploiement et reploiement d'appendices spatiaux |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20100282915A1 (fr) |
| EP (1) | EP2125521A1 (fr) |
| FR (1) | FR2914277B1 (fr) |
| WO (1) | WO2008125439A1 (fr) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4133502A (en) * | 1977-03-28 | 1979-01-09 | Rca Corporation | Plural panels deployed effectively as a single panel |
| GB2099788B (en) * | 1981-06-10 | 1985-04-24 | British Aerospace | Improvements in or relating to telescopic mechanisms |
| US4635773A (en) * | 1985-04-22 | 1987-01-13 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Non-backdriveable free wheeling coupling |
| IT1222756B (it) * | 1987-09-29 | 1990-09-12 | Contraves Italiana Spa | Meccanismo di articolazione piana a moto diretto e inverso privo di attuatori di movimento elettrici,per applicazioni spaziali |
| US5356095A (en) * | 1992-08-04 | 1994-10-18 | Fairchild Space And Defense Corporation | Attenuating linged deployment apparatus |
| US5810296A (en) * | 1996-08-29 | 1998-09-22 | Trw Inc. | Integrated restraint/release/deployment initiation device |
| US6484972B1 (en) * | 1999-11-04 | 2002-11-26 | Alcatel | Articulated set of sequentially opened solar generator panels |
| US6308919B1 (en) * | 2000-04-25 | 2001-10-30 | Space Systems/Loral, Inc. | Spacecraft having a dual reflector holddown for deploying multiple reflectors in a single release event |
| ES2188331B1 (es) * | 2000-09-20 | 2004-06-16 | Sener, Ingenieria Y Sistemas, S.A. | Mecanismo de amarre y liberacion de equipos con actuacion remota. |
| EP1386838B1 (fr) * | 2002-07-31 | 2006-05-17 | EADS Astrium GmbH | Réflecteur d'antenne déployable |
| FR2857169B1 (fr) * | 2003-07-01 | 2006-02-24 | Cit Alcatel | Procede de fabrication d'elements electriquement conducteurs isoles de collecteur tournant et collecteur tournant comportant ces elements electriquement conducteurs |
| US7644890B2 (en) * | 2006-06-01 | 2010-01-12 | Utah State University | Low-energy locking hinge mechanism for deployable devices |
-
2007
- 2007-03-27 FR FR0754049A patent/FR2914277B1/fr not_active Expired - Fee Related
-
2008
- 2008-03-26 WO PCT/EP2008/053525 patent/WO2008125439A1/fr not_active Ceased
- 2008-03-26 US US12/527,361 patent/US20100282915A1/en not_active Abandoned
- 2008-03-26 EP EP08718204A patent/EP2125521A1/fr not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2008125439A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2914277A1 (fr) | 2008-10-03 |
| US20100282915A1 (en) | 2010-11-11 |
| WO2008125439A1 (fr) | 2008-10-23 |
| FR2914277B1 (fr) | 2009-09-18 |
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Inventor name: LE QUINTREC, CYRILLE Inventor name: BARBET, VINCENT Inventor name: BROSSIER, JEROME |
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| DAX | Request for extension of the european patent (deleted) | ||
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| 18D | Application deemed to be withdrawn |
Effective date: 20131001 |