• 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 gas generator (2) for inflatable cushion (s) comprising: - at least one pyrotechnic charge (23) and means for igniting / activating (25) said charge (23) triggered during a predetermined condition, - a tank (21) containing a gas under pressure (211) and whose mouth is closed by a closure element (211), and - an evacuation opening (222) of gas communicating with at least one airbag (141, 142). According to the invention, the gas generator (2) further comprises a striker (24) located in a duct (221) in which opens the discharge opening (222) of the gases and which can be moved in a first step when the predetermined condition is satisfied, by the combustion gases (231) generated by the pyrotechnic charge (23) in the direction of the closure element (211), from an initial position to an open position, from in order to pierce the latter by means of drilling means (241) carried by said firing pin (24), said firing pin (24) being able to be brought back, once the closing element (211) has been pierced, by the gas under pressure (211) stored in the tank (21), to the initial position, the gas under pressure (211) escaping from the tank (21) being directed towards said exhaust opening (222) gases.
    公开号:FR3031946A1
    申请号:FR1550551
    申请日:2015-01-23
    公开日:2016-07-29
    发明作者:Nicolas Garnier；Haja Rabeony
    申请人:Dorel France SAS；
    IPC主号:
    专利说明:

    [0001] The field of the invention is that of childcare, and more specifically devices adapted to receive a child, especially in a seated position.
    [0002] The invention relates in particular to the car seats, intended to be secured to a seat or bench seat of a motor vehicle. It can also be implemented in devices such as strollers, nacelles, bicycle seats, etc. More specifically, the invention relates to the implementation of cushions, or balloons, or elements, inflatable security, commonly called "airbag", whose inflation is triggered automatically in case of impact (in an accident situation) , to protect the child installed in the childcare device. The use of airbags is well known, especially in the automotive field. More recently, many other applications have been considered, and in particular for child car seats.
    [0003] For example, the car seat may comprise two airbags, housed on or in the shoulder straps of a harness or on or in sleeves mounted on said shoulder straps, and secured by connecting means. Such an approach is described for example in the patent document FR2969055, in the name of the holder of the present patent application.
    [0004] In the event of an impact, each of the airbags is inflated with gas from a pressurized gas cylinder and transmitted via a pressurized gas flow passage. The documents describing airbags for car seats generally provide for the presence of shock detection means controlling the triggering of gas generating means for inflating the airbags, but provide no details on the operation of these gas generating means, and especially on how the gas is routed. This is a crucial problem. Indeed, it is essential that the airbags systematically trigger when necessary, and quickly enough to ensure the protection of the child.
    [0005] It is furthermore essential that these gas generating means are of simple design and have optimum compactness. Similar problems are found in other child care devices.
    [0006] The object of the invention is in particular to overcome at least some of these disadvantages. An object of the invention is to provide an inflation gas to one or more airbags reliably. More specifically, an object of the invention is to improve the known gas generating means 10 in order to simplify their structure and to optimize their compactness. Another object of the invention is to provide such gas generator means which are relatively inexpensive. Another object of the invention is to provide a child care device 15 improving the safety of the child in case of shock, in a simple and effective manner. Another object of the invention, at least according to some embodiments, is to provide a car seat ensuring a reliable trigger, safe and effective or airbags when an accident situation occurs. These and other objectives which will be apparent thereafter are achieved by an inflatable cushion gas generator (s) comprising: at least one pyrotechnic charge and ignition means; activating said triggered charge under a predetermined condition, a tank containing pressurized gas and having its mouth closed by a closure member, and a gas vent opening communicating with at least one airbag . According to the invention, the gas generator further comprises a firing pin located in a duct into which the gas discharge opening opens and which can be moved in a first step, when the predetermined condition is satisfied, by the gases generated by the pyrotechnic charge towards the closure member 3031946 3, from an initial position to an open position, so as to pierce the latter by means of drilling means carried by said striker, said striker that can be returned, once the closure element pierced by the pressurized gas stored in the tank, to the initial position, the pressurized gas escaping from the reservoir to said gas evacuation opening. It is thus possible to provide an inflation gas to one or more airbags reliably using a gas generator structure that is simple and compact. In addition, such a structure limits the time of deployment of the airbags. The pyrotechnic gas generator according to the invention uses a solid agent for producing combustion gases, as a source of movement of a firing pin towards a pressurized gas cylinder. A front end of the striker is used to pierce the closure cap of the pressurized gas cylinder.
    [0007] Once the bottle is pierced, the pressurized gas causes the firing pin to move in the opposite direction, the recoil of the striker allowing the pressurized gas to be directed to a gas evacuation port communicating with the airbag (s). . The gas stored under pressure in the bottle is thus released to inflate / deploy the cushion or cushions.
    [0008] Such a gas generator structure also has a reduced weight. According to a particular aspect of the invention, in the initial position, the firing pin is located on one side of the gas discharge opening, the mouth of the tank being located on the other side of the discharge opening gases in the duct. According to a particular aspect of the invention, the piercing means are surrounded by a shoulder intended to abut against the periphery of the mouth of the reservoir, the piercing means being dimensioned to penetrate at least partially into said mouth of the mouth. tank. According to a particular aspect of the invention, the pyrotechnic charge is disposed at least partly in a housing formed in said striker.
    [0009] According to a particular aspect of the invention, the housing opens on a rear face of the striker and the piercing means on the opposite front face of the striker. According to a particular aspect of the invention, when the shoulder abuts against the periphery of the mouth of the reservoir, the rear face of the firing pin is located facing the gas discharge opening so as to define a passage of the combustion gases to the gas evacuation opening. According to a particular aspect of the invention, the longitudinal axis of the gas evacuation opening is substantially inclined with respect to the axis perpendicular to the longitudinal axis of the duct.
    [0010] According to a particular aspect of the invention, the piercing means have an ogival shape or a beveled shape. The invention also relates to a childcare device adapted to receive a child comprising at least one gas generator as described above. According to a particular aspect of the invention, the childcare device comprises a harness having two straps intended to extend from the shoulders along the torso of a child, each of the straps carrying an inflatable safety element, suitable for inflate in case of shock greater than a predetermined threshold. The implementation of these inflatable elements associated with the straps is simple to implement and use.
    [0011] According to a particular aspect of the invention, the childcare device comprises a seat, said gas generator being housed in the backrest, in at least one of the side blanks, and / or in the base of said seat. Said inflatable security elements may be powered by at least one source of fluid, for example housed in the backrest of said seat, in the lateral blanks, in the base, etc. According to one particular aspect of the invention, the device is a car seat, a stroller, a carrycot, or a bicycle seat, for example. Other characteristics and advantages of the invention will emerge more clearly on reading the following description of a preferred embodiment of the invention, given as a simple illustrative and nonlimiting example, and appended drawings. among which: Figure 1 illustrates an example of a car seat using a pyrotechnic gas generator according to the invention for inflating inflatable elements carried by the harness of the car seat; Figure 2 shows the car seat of Figure 1, the inflatable elements having been deployed; Figure 3 shows the rear of the car seat of Figures 1 and 2, equipped with a pyrotechnic gas generator according to the invention for inflating the inflatable elements; Figures 4 to 9 illustrate the operation of the pyrotechnic gas generator according to the invention; FIG. 10 schematically illustrates an example of a striker tip used in the pyrotechnic gas generator according to the invention.
    [0012] The invention therefore proposes a pyrotechnic gas generator for inflating one or more airbag cushions intended to equip childcare devices. The embodiment described below relates to child car seats. However, it will be appreciated by those skilled in the art that the same approach can readily be adapted to other child care devices as long as they are equipped with one or more air bags. As seen in Figure 1, the child car seat 11 conventionally comprises a seat 111 and a backrest 112, here carrying a headrest 113, which can be movable in height, relative to the backrest 112.
    [0013] The child is held in this seat 11 by means of a harness 12, comprising two straps 121 and 122, intended to be placed each on one of the child's shoulders, and extending substantially vertically on the torso of the latter, and a leg crotch 123. When the harness is in place, the two shoulder straps 121 and 122 and the leg 30 of crotch 123 are secured by a locking loop 124. Each shoulder strap 3031946 6 121 and 122 carries a sheath 131, 132, coming to take position on the shoulders and / or upper body of the child, to improve comfort and safety. In the embodiment described, each of these sleeves 131 and 132 contains an inflatable safety element 141, 142 (only one end of which is visible in FIG. 1, and protrudes from the sleeves). The rest of the inflatable safety elements are folded and housed in the sleeves, so as to deploy effectively in case of impact. The ends of the inflatable security elements 141, 142 are connected by securing means 15, the solidarisant one to the other, comprising two flexible portions, or strips, 151 and 152 each equipped with a respectively male loop element and 10 female. In the event of a major shock, greater than a predetermined threshold, the two inflatable safety elements 141 and 142 deploy automatically and very quickly, from the sleeves 131 and 132, to protect in particular the head of the child, and limit his race towards the front, as shown in Figure 2.
    [0014] The two inflatable safety elements 141 and 142 are supplied by inflating means in the form of a pyrotechnic gas generator 2, the operation of which is described below in connection with FIGS. 4 to 9. As illustrated in FIG. 3, the gas generator 2 can be housed in the folder 114 of the seat 11 in a housing provided for this purpose. This housing can, depending on the 20 cases, be placed in the backrest, the seat or the base of the car seat, or at any convenient location. As illustrated in Figures 3 and 4, the gas generator 2 comprises a hollow body 22 comprising a cylindrical horizontal duct 221 into which opens a conduit, or opening, 222 gas evacuation. This duct 222 is here cylindrical but may have other shapes. FIG. 4 shows the longitudinal axis A of the horizontal duct 221 and the longitudinal axis B of the gas evacuation duct 222. These two axes A, B are here arranged at 90 °, but other inclination values of the duct 222 with respect to the duct 221 are possible. Thus, the gas evacuation conduit 222 may be disposed obliquely with respect to the longitudinal axis A of the horizontal duct 221.
    [0015] An open end of the horizontal duct 221, situated to the right of the duct 222 for exhausting gases, is intended to receive the neck of a cylinder 21 with a suitable fluid. The fluid contained in the bottle may in particular be a gas such as carbon dioxide (CO2), helium, nitrogen, or any other fluid adapted to allow the immediate swelling of the two inflatable safety elements 141, 142. The neck of the bottle can be screwed into the open end of the horizontal duct 221. A first end of a gas diffuser tube 26, which is here a flexible duct, is connected to the fluid supply inlet (no shown) inflatable safety elements 141, 142, its second end being connected to the gas evacuation conduit 222 10 of the gas generator 2. In addition to the gas supply (gas cylinder) 21, the gas generator 2 comprises a pyrotechnic assembly mounted in the other end of the horizontal duct 221, located to the left of the duct 222 for evacuation of gases. This pyrotechnic assembly consists of a pyrotechnic (or explosive) charge 23, ignition means 25 of the pyrotechnic charge 23 and a firing pin 24, shown in FIG. 4. The pyrotechnic charge 23 is in the form of a monolithic block of fuel (propellant for example) that produces gas while being lit and burning. The pyrotechnic charge 23 is located in a combustion chamber 242 formed inside the firing pin 24, which makes it possible to limit the size of the gas generator 2. The combustion chamber 242 opens into the rear plane surface 244 of the striker 24 which is, in the position of Figure 4, in contact with the ignition means 25. The striker 24 (also called "bullet") cylindrical is slidably movable in two opposite directions in the horizontal duct 221 and present, 25 in this example, at the front, a perforated beveled tip 241 (another shape may be envisaged, in particular an ogival shape) oriented towards the bottle 21. The bevelled tip 241 comprises a surface inclined with respect to the longitudinal axis A horizontal duct 221 and oriented towards the duct 222 for evacuation of gases. The piercing tip 241 is surrounded by an annular flange 243.
    [0016] In the initial position of FIG. 4, this perforating part 241 is situated opposite the gas evacuation conduit 222, away from the closing cap 211 of the cylinder 21. Although this is not illustrated in the figures, the gas generator 2 is controlled by a microcontroller / electronic control unit (ECU). If necessary (shock, accident, deceleration greater than a predetermined threshold, ...), the microcontroller is able to emit a triggering command of the gas generator 2, in the form of an electrical signal which is transmitted to ignition means 25, so as to ensure the swelling of the two inflatable safety elements 141 and 142. The triggering of the inflation during an impact must of course be made only in case of shock sufficiently important. A predetermined predetermined threshold is thus defined. If this predetermined threshold is exceeded, the ignition means 25 trigger the combustion of the pyrotechnic charge 23 in the combustion chamber 242. As illustrated by the arrow D1 of FIG. 5, once the combustion gas 231 completely occupies the the volume of the combustion chamber 242, it causes the displacement of the firing pin 24 in the horizontal duct 221 to the cylinder 21 (that is to say from left to right in FIG. 5). In the position illustrated in FIG. 5, the end of the piercing portion 241 of the striker 24 is in contact with the closing cap 211 of the bottle 21, and the combustion gas 231 is contained in the closed space situated between the ignition means 25 and the striker 24. In FIG. 6, the firing pin 24 has again moved towards the cylinder 21 under the effect of the combustion gas 231 and is in an open position. The rear surface 244 of the striker 24 is located opposite the conduit 222 for discharging gases. The combustion gas 231 has escaped into the gas evacuation conduit 222 communicating with the tube 26 and the airbags. The degassing of the pyrotechnic charge 23 is therefore to the airbags. The piercing portion 241 of the striker 24 has pierced the closing cap 211 of the bottle 21 and is located in the neck of the bottle 21. The flange 243 abuts against the neck of the bottle 21, thereby maintaining the body striker 24 out of the cylinder 21 and striker 24 of 30 back to direct the pressurized gas 211 to the airbags.
    [0017] 3031946 9 With the bottle 21 being open and the combustion gas 231 being purged, as illustrated in FIG. 7, the pressurized gas 211 stored in the bottle 21 applies a sufficient pressure P to the perforating part 241 of the firing pin 24 to push back this last in the horizontal duct 221 (that is to say to move it in the opposite direction, 5 of the cylinder 21 to the ignition means 25). As the striker 24 moves back to its initial position (as illustrated by the arrow D2 in FIG. 8), the pressurized gas coming from the cylinder 21 is directed into the conduit 222 for evacuation of the gases and ensures the inflation of the airbags. . Thus, under the effect of the pressurized gas 211, the firing pin 24 moves back towards a guiding position of the pressurized gas 211 to release the pressurized gas 211 into the gas discharge conduit 222 (FIG. 8). In FIG. 9, the striker 24 has moved back to its initial position and the pressurized gas 211 is directed in the gas evacuation conduit 222, the plane of the flange being at the angle formed by the duct 222 and the horizontal duct 221. It should be noted that the striker 24 can take an intermediate position between the initial position (Figure 4) and the open position of the cylinder 21 (Figures 6 and 7). ). Other Aspects and Variations In the embodiment described above, the striker 24 has a beveled tip 241. A striker having a tip-shaped or pyramid-shaped end can be implemented. However, although the skilled person would logically consider these forms to pierce a lid, the inventors have found that such forms do not allow optimal opening of the cap of the carboy. It has however been found by the inventors that an ogive shape allows an optimal opening of the lid 211 of the cylinder 21 and a better flow of gas around the tip of the warhead. A striker 24 'having a front end 241' in the form of a warhead is illustrated in FIG. 10. The angle a (alpha) of the two arcs of the circle 30 forming the ogival end may be greater or lesser than that illustrated. 10 is noted that the striker 24 is mounted "tight" in the rear part (that is to say on the side of the ignition means) to ensure a maintenance thereof for the life of the car seat. The remainder of the striker body 24 is mounted with play to facilitate its movement when triggering the load in particular. Furthermore, the invention does not apply only to the car seat, but can also be implemented in other childcare devices, such as strollers, nacelles, bicycle seats, etc.
    权利要求:
    Claims (12)
    [0001]
    REVENDICATIONS1. Gas generator (2) for inflatable cushion (s) comprising: at least one pyrotechnic charge (23) and means for igniting / activating (25) said charge (23) triggered during a condition predetermined, a reservoir (21) containing a gas under pressure (211) and whose mouth is closed by a shutter member (211), and an exhaust opening (222) of the gases communicating with at least one airbag (141, 142), characterized in that the gas generator (2) further comprises a striker (24) located in a duct (221) into which opens the exhaust opening (222) of the gases and which can be first displaced, when the predetermined condition is satisfied, by the combustion gases (231) generated by the pyrotechnic charge (23) in the direction of the closure element (211), from an initial position to a position opening, so as to pierce the latter by means of piercing means (241) carried by ledi striker (24), said firing pin (24) can be returned, once the shutter element (211) pierced by the pressurized gas (211) stored in the reservoir (21), to the initial position, the pressurized gas (211) escaping from the tank (21) directed towards said gas discharge opening (222).
    [0002]
    2. Gas generator (2) according to claim 1, characterized in that, in the initial position, the striker (24) is located on one side of the exhaust opening (222) of the gas, the mouth of the reservoir (21) being located on the other side of the gas discharge opening (222) in the conduit (221).
    [0003]
    3. Gas generator (2) according to claim 1 or 2, characterized in that the piercing means (241) are surrounded by a shoulder (243) intended to abut against the periphery of the mouth of the reservoir (21). ), the piercing means (241) being sized to penetrate at least partially into said mouth of the reservoir (21). 3031946 12
    [0004]
    4. Gas generator (2) according to one of claims 1 to 3, characterized in that the pyrotechnic charge (23) is disposed at least partly in a housing (242) formed in said striker (24).
    [0005]
    5. gas generator (2) according to claim 4, characterized in that the housing (242) opens on a rear face (244) of the striker (24) and the piercing means (241) on the opposite face before the striker (24).
    [0006]
    6. Gas generator (2) according to claim 5, characterized in that when the shoulder (243) abuts against the periphery of the mouth of the reservoir (21), the rear face (244) of the firing pin (24) ) is located opposite the gas discharge opening (222) so as to define a passage of the combustion gases (231) towards the exhaust opening (222) of the gases.
    [0007]
    7. gas generator (2) according to claim 5 or 6, characterized in that the longitudinal axis (B) of the discharge opening (222) of the gas is substantially inclined relative to the axis perpendicular to the longitudinal axis (A) of the duct (221). 15
    [0008]
    8. gas generator (2) according to one of claims 1 to 8, characterized in that the piercing means (241) have an ogival shape or beveled shape.
    [0009]
    9. Juvenile child-friendly device comprising at least one gas generator (2) according to one of claims 1 to 8.
    [0010]
    10. Childcare device according to claim 9, characterized in that it comprises a harness (12) having two straps (121, 122) intended to extend from the shoulders along the torso of a child, each straps (121, 122) carrying an inflatable security element (141, 142), able to inflate in the event of a shock greater than a predetermined threshold.
    [0011]
    11. Childcare device according to claim 9 or 10, characterized in that it comprises a seat, said gas generator (2) being housed in the backrest (114), in at least side blanks, and / or in the base of said seat.
    [0012]
    12. child care device according to one of claims 9 to 11, characterized in that it is a car seat, a stroller, a nacelle, or a seat for bicycle.30.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP3247594B1|2018-08-22|Pyrotechnic gas generator and respective childcare device
    EP0864470B1|2001-10-17|Pyrotechnic gas generator with adaptable flow and volume for a safety bag
    FR2902060A1|2007-12-14|"PYROTECHNIC GENERATOR OF GAS USED IN AUTOMOTIVE SAFETY"
    EP1053915B1|2003-08-06|Hybrid gas generator with a perforating stem
    EP1172261A1|2002-01-16|Venting means for an inflatable element and vehicle protection device provided with same
    FR2889830A1|2007-02-23|DEVICE FOR CONTROLLING THE CROSS-SECTIONAL OUTPUT OF AT LEAST ONE VENTILATION ORIFICE OF AN INFLATABLE SAFETY CUSHION MODULE, AND MODULE EQUIPPED WITH SUCH A DEVICE
    EP2809544B1|2017-03-08|Child car seat, intended to be joined to the seat of a motor vehicle
    FR2667831A1|1992-04-17|Device with inflatable bag for the safety of a vehicle passenger
    EP1086862A1|2001-03-28|Inflatable metallic structure with integrated pyrotechnic charge
    EP1304267B1|2010-11-03|Hybrid gas generator for airbag
    CA2404836C|2007-06-05|Hybrid gas generator for automotive lateral air-bag restraint system
    EP1276646A1|2003-01-22|Device for individual protection, comprising an airbag
    EP3766368A1|2021-01-20|Emergency protective helmet
    EP1304268A1|2003-04-23|Hybrid gas generator for airbag
    FR3055857A1|2018-03-16|PYROTECHNIC GAS DISPENSER AND CORRESPONDING PUERICULTURE DEVICE
    EP3459853B1|2019-12-04|Safety device for equipping a paraglider or aircraft seat, and seat equipped with such a device
    EP2671802B1|2016-05-25|Device for protecting a person sitting on a seat, seat and vehicle
    EP2481643B1|2013-07-10|Vehicule-occupant protection device, seat and vehicle, associated seat and vehicle
    FR3073499A1|2019-05-17|EMERGENCY PARACHUTE EJECTOR FOR PARAGLIDING OR AIRCRAFT ULTRALEGER
    EP0818366B1|2002-05-08|Arrangement of an airbag module in part of a seat in a motor vehicle
    JP2022020933A|2022-02-02|Airbag device
    JP2554134B2|1996-11-13|Gas generator for airbag deployment
    FR2938814A1|2010-05-28|Closed contour hollow body shell element e.g. door trim, for e.g. sub-abdominal retaining system in motor vehicle, has pyrotechnical initiator initiating combustion of gas mixture to generate temperature and pressure rise to deform wall
    FR3017081A1|2015-08-07|DEVICE FOR SUPPORTING A HEAD AND / OR NECK, WITH A COVER AND EXTENSIBLE SHOCK, FOR A SEAT BACK
    同族专利:
    公开号 | 公开日
    CN107206960A|2017-09-26|
    EP3247594B1|2018-08-22|
    CN107206960B|2019-04-30|
    US20180009406A1|2018-01-11|
    WO2016116308A1|2016-07-28|
    FR3031946B1|2018-07-13|
    EP3247594A1|2017-11-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2002094617A2|2001-05-18|2002-11-28|Fabio Giovanni Fedele Colombo|Inflator for inflating pneumatic protective articles or gears|
    US20090045612A1|2007-08-15|2009-02-19|Autoliv Asp, Inc.|Flameless method to open a cold gas inflator burst disk|
    FR2969055A1|2010-12-20|2012-06-22|Dorel France Sa|PUERICULTURE DEVICE COMPRISING INFLATABLE SAFETY ELEMENTS|
    EP0884224A1|1993-07-16|1998-12-16|New Lennox Industries Inc.,|Child safety and restraint system and alarm system therefor|
    US5782486A|1993-07-16|1998-07-21|New Lenox Industries, Inc.|Rapid gas-fill apparatus and method|
    JP2002347567A|2001-05-29|2002-12-04|Takata Corp|Inflator|
    JP3906910B2|2002-03-29|2007-04-18|トヨタ自動車株式会社|initiator|
    AT412559T|2005-12-20|2008-11-15|Key Safety Systems Inc|GAS GENERATOR WITH IMPROVED CONNECTION CAP|
    CN101574953A|2009-06-08|2009-11-11|王运韬|Active and passive airbag inflatable gas generator for environment-friendly automobile|
    JP6283252B2|2014-04-14|2018-02-21|株式会社ダイセル|Punch and gas discharge device|
    WO2016007364A1|2014-07-10|2016-01-14|Key Safety Systems, Inc.|Igniter assembly with retractable piston|
    DE102014018007A1|2014-12-05|2016-06-09|Trw Airbag Systems Gmbh|Combustion chamber with an opening device for a compressed gas container of a hybrid gas generator, hybrid gas generator, gas bag module, vehicle safety system, and method for flowing out a fluid from a gas generator|FR3055857A1|2016-09-14|2018-03-16|Dorel France|PYROTECHNIC GAS DISPENSER AND CORRESPONDING PUERICULTURE DEVICE|
    IT201700109554A1|2017-09-29|2019-03-29|Getters Spa|Air bag module|
    CN111750261A|2020-07-06|2020-10-09|湖北航天化学技术研究所|Emergency breathing gas source|
    法律状态:
    2016-01-26| PLFP| Fee payment|Year of fee payment: 2 |
    2016-07-29| PLSC| Publication of the preliminary search report|Effective date: 20160729 |
    2017-01-27| PLFP| Fee payment|Year of fee payment: 3 |
    2018-01-24| PLFP| Fee payment|Year of fee payment: 4 |
    2020-01-31| PLFP| Fee payment|Year of fee payment: 6 |
    2021-01-26| PLFP| Fee payment|Year of fee payment: 7 |
    2022-01-26| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1550551A|FR3031946B1|2015-01-23|2015-01-23|PYROTECHNIC GAS GENERATOR AND CORRESPONDING PUERICULTURE DEVICE|
    FR1550551|2015-01-23|FR1550551A| FR3031946B1|2015-01-23|2015-01-23|PYROTECHNIC GAS GENERATOR AND CORRESPONDING PUERICULTURE DEVICE|
    US15/544,897| US20180009406A1|2015-01-23|2016-01-11|Pyrotechnic gas generator and corresponding childcare device|
    CN201680006474.4A| CN107206960B|2015-01-23|2016-01-11|Firework type gas generator and corresponding WatchChild device|
    EP16700263.3A| EP3247594B1|2015-01-23|2016-01-11|Pyrotechnic gas generator and respective childcare device|
    PCT/EP2016/050335| WO2016116308A1|2015-01-23|2016-01-11|Pyrotechnic gas generator and corresponding childcare device|
    [返回顶部]