• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a device for ejecting a drone parachute by pyrotechnic cutter. It consists of a container (1) in which the parachute is introduced. This will be expelled by a piston (2) compressed by a spring (3) maintained by a textile strand (4) which will be cut by a pyrotechnic cutter (5) fed by a low power electrical signal. The ejection support (6) is integral and vents allow the decompression of the piston and the ejection of the pyrotechnic gases (7). The device according to the invention is particularly intended to equip lightweight flying machines requiring a safety device ensuring a return to earth with low energy through rapid ejection of a parachute.
    公开号:FR3038884A1
    申请号:FR1502409
    申请日:2015-11-16
    公开日:2017-01-20
    发明作者:Jean Philippe Gallat
    申请人:Jean Philippe Gallat；
    IPC主号:
    专利说明:

    The present invention relates to a device for ejecting a parachute for a drone characterized by decompressing a spring by means of a pyrotechnic cutter.
    In an increasing number of countries, legislation requires drone operators to equip the drone with a parachute that returns to shore with a defined energy.
    The ejection device must ensure fast ejection, thus providing sufficient energy while consuming the lowest possible electrical energy.
    Such a device must therefore meet the following characteristics: - reduced weight; dissociation of the ejection force from the power required for triggering; - reliability; - no impact on the textile of the parachute and its lines; - modularity (folded parachute in container, pod).
    The parachute is inserted in an ejection container. This will be ejected by a piston compressing a spring held by a textile strand of high strength and easily severable.
    The textile strand passes through the severing hole of a pyrotechnic cutter (ignition trigger cut shear). The triggering of the pyrotechnic cutter is ensured a signal of very low power.
    The accompanying drawings illustrate the invention:
    Figure 1 shows, in isometric view, the overall appearance of the device of invention.
    Figure 2 shows, in section, the device of the invention.
    With reference to these drawings, the device comprises a container (1) in which a movable piston (2) is compressed by a spring (3) at the bottom thereof. In this container is placed the parachute. Maintaining the compression is provided by a textile strand (4) stretched between a pin secured to the base and a pin secured to the piston. The ejection of the parachute is triggered by the cutting of the hanger by a pyrotechnic knife (5) inserted into an ejection device (6) consisting of a single molded or machined part ensuring its reliability and lightness and a cost reduced manufacturing.
    The pyrotechnic knife is connected to a radio-controlled device or on a map analyzing flight conditions.
    Vents (7) allow the decompression of the container during the rise of the piston as well as the ejection of the gases emitted by the pyrotechnic device. As a non-limiting example, the device shown, adapted to a drone with a weight between 2 and 4 kg, will have dimensions of 170 mm in height and 100 mm in diameter.
    The device according to the invention is particularly suited to the equipment of drones or flying objects, in particular of low weight, for its simplicity, reliability and low manufacturing cost.
    权利要求:
    Claims (4)
    [1" id="c-fr-0001]
    1. Device for ejection of a parachute for drone or light flying vehicles characterized in that it operates by decompression of a spring by means of a pyrotechnic cutter and comprising a container (1) in which is introduced the parachute which will be expelled by a piston (2) compressed by a spring (3) held by a textile strand (4) which will be cut the pyrotechnic cutter (5) inserted into an ejection carrier (6).
    [2" id="c-fr-0002]
    2. Device according to claim 1 in that the compression of the spring (3) is provided by a textile strand (4) easily sectionable allowing the use of a high stiffness spring.
    [3" id="c-fr-0003]
    3. Device according to claim 1 in that the textile strand (4) is cut by a pyrotechnic cutter (5).
    [4" id="c-fr-0004]
    4. Device according to claim 1 in that the ejection carrier (6) has only one molded or machined part.
    类似技术:
    公开号 | 公开日 | 专利标题
    FR3038884A1|2017-01-20|PARACHUTE EJECTION DEVICE FOR DRONE
    EP0645275B1|1998-11-25|Safety cutoff device, particularly for vehicles
    US10136722B1|2018-11-27|Impact-absorbing tethering attachment
    EP1645799A1|2006-04-12|Energy absorbing headlamp for vehicles and process for absorbing energy caused by an impact with a pedestrian
    FR2968276A1|2012-06-08|METHOD AND DEVICE FOR AIDING THE LOCALIZATION OF A IMMERED AIRCRAFT EPAVE IN A SEAWATER EXTEND.
    FR2492317A1|1982-04-23|HYDRAULIC SHOCK ABSORBER DEVICE FOR CUTTING PRESS
    EP1138957A1|2001-10-04|Re-armable separation screw with low induced shock
    FR2857421A1|2005-01-14|PYROTECHNIC ACTUATOR WITH VARIABLE PUSH EFFECT
    US9296470B1|2016-03-29|Deployable apparatus for use with air vehicles
    EP2705937A8|2014-11-19|Wooden logs sawing machine
    FR3073664A1|2019-05-17|PYROTECHNIC CUTTING DEVICE
    EP2995558B1|2018-12-05|Aircraft comprising at least one rescue beacon
    FR3072550B1|2021-01-01|KNIFE HOLDER WITH SHARPENING SYSTEM
    WO2018220607A1|2018-12-06|Device for protecting the connection between a detachable wired drone and the wire thereof
    FR3060530A1|2018-06-22|DEVICE FOR EJECTING A PROPULSE PARACHUTE BY BREAKING A CONTAINER FILLED WITH GAS UNDER PRESSURE AND EQUIPPING AN AIRCRAFT WITHOUT PILOT
    US3320669A|1967-05-23|Line cutter
    FR2777251A1|1999-10-15|Shock absorber for buffer of rail vehicles,
    CA2002936A1|1990-05-15|Lacking and unlocking device for two elements of a projectile, especially of a cargo device for submunitions
    FR2965044B1|2012-08-24|SAFETY AND ARMING DEVICE FOR GYROSTABILIZED EXPLOSIVE PROJECTILE AND STARTING DEVICE USING SUCH A SAFETY AND ARMING DEVICE
    FR2519784A1|1983-07-18|Multichannel transmission assembly for pyrotechnic firing signal - uses shock generator to detonate explosive to force metal strips against multiple output relay elements
    WO2012045929A1|2012-04-12|Securing/releasing device, and related airdrop device
    FR2965795A1|2012-04-13|Elements integration/disintegration device for use in releasing device for releasing missile from aircraft, has units fixed on support of element, where units include sensor adapted to control unlocking of position of moving part of hook
    US5484243A|1996-01-16|Carriage and release mechanism for airborne store
    FR2486489A1|1982-01-15|PYROTECHNIC DEVICE AND METHOD FOR CUTTING AND EJECTING A TRANSPARENT ELEMENT OF AIRCRAFT GLASS
    EP3023669A1|2016-05-25|Device for absorbing kinetic energy and aircraft comprising such a device
    同族专利:
    公开号 | 公开日
    FR3038883A1|2017-01-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20030057327A1|2001-09-27|2003-03-27|Carroll Ernest A.|Miniature, unmanned aircraft with automatically deployed parachute|
    WO2009112875A1|2008-03-14|2009-09-17|Stanislav Ivanov Djorov|A system for ejection of a safety parachute from a paraplane seat|
    EP2404827A2|2010-07-09|2012-01-11|Aerazur|A pilot chute device|
    WO2014080409A1|2012-11-26|2014-05-30|Wisec Ltd.|Safety apparatus for a multi-blade aircraft|WO2020192808A1|2019-03-28|2020-10-01|Milan Babovka|Emergency parachute system for rescue of persons, or of manned or unmanned aerial vehicles|
    CN112977843A|2021-05-07|2021-06-18|北京三快在线科技有限公司|Parachute device and unmanned aerial vehicle|
    EP3708497A4|2017-11-10|2021-07-28|Nippon Kayaku Kabushiki Kaisha|Flying object safety device and flying object|
    法律状态:
    2017-01-20| PLSC| Search report ready|Effective date: 20170120 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1501532A|FR3038883A1|2015-07-17|2015-07-17|PARACHUTE EJECTION FOR DRONE|
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