• 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 parachute device for a divisible grenade (1) comprising an action load (8) and a grenade bottom (4), the parachute device comprising two parachutes, a first main parachute (9) connected to the action load (8) via parachute lines (13) and a second parachute (10) connected to the grenade base (4) .Fig. 1
    公开号:SE1630075A1
    申请号:SE1630075
    申请日:2016-04-06
    公开日:2017-10-07
    发明作者:Hagberg Anders；Ekberg Anders；Hultgren Tomas；Lilja Jonas；Norrvi Olle
    申请人:Bae Systems Bofors Ab；
    IPC主号:
    专利说明:

    The present invention relates to a parachute device for a divisible grenade, for example for a grenade comprising an action load in the form of a sledgehammer which must be braked against the ground after separation from the grenade.
    BACKGROUND After firing a grenade comprising a light set, it is released from the grenade at a predetermined height, the fall of the light set towards the ground, bottom part, towards the ground. at the same time, the grenade-bearing grenade bottom is released, which is allowed to fall freely. The grenade bottom, which weighs about 0.8 kg, reaches a speed of more than 100 m / s, which entails a safety risk for people on the ground.
    OBJECT OF THE INVENTION AND ITS PARTICULAR PURPOSE OF THE PRESENT INVENTION, the varietal parachute device has been arranged so that both the chimney and the grenade base are braked in their cases against the ground.
    A further object of the present invention has been a parachute device with few components.
    Said object, is satisfied in a satisfactory manner and other purposes not listed here, by way of what is stated in the present independent patent claims.
    Embodiments of the invention are set out in the dependent claims. Thus, according to the present invention, there has been provided a parachute device for a divisible grenade comprising an action load and a grenade base.
    Characteristic of the invention is that the parachute device comprises two parachutes, a first main parachute connected to the grenade's action load via 1355 SE draft l (2016-03-17) _2_ parachute lines, and a second parachute connected to the grenade bottom of the grenade. For the parachute device According to the embodiment of the invention the other is a second parachute with the open part and a rear part called a screen, wherein the packing core 1 forms the main parachute, the second parachute comprises a front named base, the screen is connected to the grenade bottom via a mounting plate and a mounting screw arranged on the inside of the screen. inside the mounting screw so that the screen is clamped between the mounting plate and the grenade bottom.
    According to a third embodiment of the parachute device according to the invention, the base comprises a stretchable elastic rope sewn into a seam around the base screen comprising folds having an outer edge, wherein breaking seams dimensioned rupture at a given load, and the screen also comprising traction lines attached between the base outer edge and the inner screen. so that the base due to the air resistance after separation from the grenade is slowed down and expands at the same time as the grenade bottom through its inertia moves towards the screen so that the screen is turned in and out and forms the second parachute.
    ADVANTAGES AND EFFECTS OF THE INVENTION The invention. entails a number of benefits and effects, the most important of which are: A parachute device comprising two parachute steering wheels is both braked in their cases against the ground, involves the impact load and the grenade bottom, which means extra safety and that the risk area can be reduced. 1355 SE original to PRV (2016-04-04) 10 _3__ By using the second parachute as a single-package cover for the main parachute, a parachute device with few parts and low weight is obtained.
    Further advantages and effects of the invention will become apparent upon study and consideration of the following, detailed description of the invention while making reference to Figures 1 - 2 therein; 1 schematically shows a longitudinal section of a parachute device comprising two parachutes arranged in divisible grenade comprising a nose cone, a spark plug, a grenade casing, a single charge, a lighter with a delay set, and a listening set.
    Figs. 2a-2d schematically show a sequence of the disposal process in the development of the two parachutes after separation of the parachute device from the grenade.
    DETAILED DESCRIPTION OF THE DESCRIPTION Figure 1 shows a longitudinal section of a parachute device arranged in a divisible grenade 1. The grenade 1 comprises a grenade cover 2, a nose cone 3, 4, a spark plug 5, a grenade bottom igniter and an action load in the form of a dividing charge 7. , of a listening kit 8 and a parachute device comprising two parachutes; a first parachute 9 called a main parachute for the light set 8 and a second parachute 10 for the grenade base 4.
    In a second embodiment of the divisible grenade 1, not shown, the action load instead comprises a smoke-generating charge which is to be slowed down after separation from the grenade 1. 1355 SE original to PRV (2016-04-04) _4_ In a third embodiment of the divisible grenade 1, not shown, comprises the action load, instead an explosive charge to be braked after separation from the grenade 1.
    The light set 8 is preferably of the conventional pyrotechnic type and is not described in more detail in the continued text. Alternatively, other types of lighting devices 8 than pyrotechnic lighting kits can be used.
    The light set 8 with ignition device 7 is fixedly arranged in a single-cylinder-shaped sleeve 11 in the front part of the grenade 1 behind the Parachute device with the two parachutes 9,10, the spark plug 5 and the dividing charge 6 are arranged in a divisible tubular sleeve 12 11 with listening set 8. The divisible sleeve 12 divides and is separated from the parachute device after separation from the grenade 1. The main parachute 9 is packed in the second parachute 10, which thus constitutes the gasket or gasket of the main parachute 9. The main parachute 9 is connected to the cylindrical sleeve 11 with the parachute ropes main parachute 9. 13, packed inside The parachute ropes 13 are connected to the sleeve 11 and are intercepted 8 via a ball bearing controlled pivot 14 arranged on the rear end 15 of the sleeve 11.
    The grenade bottom 4 is mounted on the rear end of the grenade 1 via two or more breaker pins 16, which are dimensioned to burst at a given pressure load from the dividing charge 6. The second parachute 10 is connected to the grenade bottom 4 via a mounting plate 17 and mounting screw 18 which are arranged on the inside the parachute 10. The mounting plate 17 is centered on the inside with the mounting screw 18 so that the rear part of the mounting plate 17 and the grenade base 4. the second parachute of the grenade base 4 is clamped between 1355 SE original to PRV (2016-04-04) In connection with the launch of the grenade 1 When the grenade 1 is ignited, the grenade 1 is activated. acts on the divisible sleeve 12 comprising the parachute device, the divisible sleeve 12 finally acting on the grenade bottom 4 so that the breaking pins 16 between the grenade sleeve 2 and the grenade bottom 4 rupture, the cylindrical sleeve 11 with listening set 8, the divisible sleeve 12 with parachute device and the grenade bottom 4 being released the ignition device '7 of the light set 8 is also initiated with a delay set so that the light set 8, after separation from the grenade 1 and after a fixed time delay, is initiated.
    The second parachute 10, which constitutes the gasket of the main parachute 9. or housing, comprises a front open part, called base 19, and a rear part, called screen 20. The screen 20 enclosing the main parachute 9 is arranged in the divisible bar sleeve 12 and comprises folds. The shield 20 also comprises, preferably, breaking seams 21 which are dimensioned to rupture at a given load from ambient air currents upon separation from the main parachute 9. The base 19 comprises a stretchable elastic rope or wire, preferably an elastic rope, sewn into a seam around the base 19 outer edge, not shown.
    The screen 20 further comprises longitudinal tow lines 22 attached between the outer edge of the base 19 and the inside of the screen 20 so that the base 19 after the separation of the second parachute 10 from the main parachute 9, due to the 1355 SE original to PRV (2016-04-04) _6_ surrounding air resistance, is slowed down and expands due to its inertia, that at the same time as the grenade bottom 1, moves in the opposite direction to the screen 20 so that the screen 20, at least partially, is turned in and out and develops into the second parachute 10. See the sequence of dispositions, Figure 2a- d.
    The stretchable elastic rope and traction ropes 22 help the base 19 remain dimensionally stable during the process when the screen 20 is turned in and out and developed into the second parachute 10 in a predetermined manner.
    The invention is not limited to the embodiments shown but can be varied in various ways within the scope of the patent claims. 1355 SE Original for PRV (2016-04-04)
    权利要求:
    Claims (3)
    [1]
    A parachute device for a divisible grenade (1) comprising an action load (8) and a grenade bottom (4), the parachute device comprising two parachutes, a first main parachute (9) connected to the action load (8) via parachute lines (13) and a second parachute (10) connected to the grenade base (4).
    [2]
    A parachute device according to claim 1, wherein the main parachute (9) is packed in the second parachute (10), the second parachute (10) comprising a front open part called a base (19) and a rear part called a screen (20), the parachute (20) 20) is connected to the grenade base (4) via a mounting plate (17) and a mounting screw (18) arranged on the inside of the screen (20), the mounting plate (17) being fastened to the inside of the grenade base (4) with the mounting screw (18) so that the screen (20) is clamped between the mounting plate (17) and the grenade base (4).
    [3]
    A parachute device according to claim 2, wherein the base (19) comprises a stretchable elastic rope sewn in as around the outer edge of the base (19), the screen (20) comprising folds with break seams (21) dimensioned to rupture at a given load, and wherein the screen (20) comprises traction lines (22) attached between the outer edge of the base (19) and the inside of the screen (20) so that the base (19) brakes up due to the ambient air resistance after separation from the grenade (1) and expands simultaneously as the grenade bottom (4) through its inertial tube in the opposite direction to the screen (20) so that the return screen (20) is turned in and out and forms the second case screen (10). 1355 SE original for PRV (2016-04-04)
    类似技术:
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    US3014678A|1961-12-26|Parachute apparatus
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1630075A|SE540780C2|2016-04-06|2016-04-06|Divisible grenade with parachute|SE1630075A| SE540780C2|2016-04-06|2016-04-06|Divisible grenade with parachute|
    JP2019503895A| JP6937362B2|2016-04-06|2017-04-04|Parachute device for separable shells|
    KR1020187031978A| KR102296808B1|2016-04-06|2017-04-04|Parachute device for splittable shell|
    US16/091,784| US10458765B2|2016-04-06|2017-04-04|Parachute device for divisible shell|
    EP17717900.9A| EP3439956B1|2016-04-06|2017-04-04|Parachute device for a divisible shell|
    SG11201808853RA| SG11201808853RA|2016-04-06|2017-04-04|Parachute device for a divisible shell|
    PCT/SE2017/050336| WO2017176200A1|2016-04-06|2017-04-04|Parachute device for a divisible shell|
    IL262160A| IL262160A|2016-04-06|2018-10-07|Parachute device for a divisible shell|
    ZA2018/06820A| ZA201806820B|2016-04-06|2018-10-12|Parachute device for a divisible shell|
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