EP0592259A1 - Haltebandvorrichtung zum zeitlich Umschliessen von Gegenständen - Google Patents

Haltebandvorrichtung zum zeitlich Umschliessen von Gegenständen Download PDF

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Publication number
EP0592259A1
EP0592259A1 EP93402146A EP93402146A EP0592259A1 EP 0592259 A1 EP0592259 A1 EP 0592259A1 EP 93402146 A EP93402146 A EP 93402146A EP 93402146 A EP93402146 A EP 93402146A EP 0592259 A1 EP0592259 A1 EP 0592259A1
Authority
EP
European Patent Office
Prior art keywords
strap
objects
vector
pulleys
pulley
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.)
Granted
Application number
EP93402146A
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English (en)
French (fr)
Other versions
EP0592259B1 (de
Inventor
Jean-Claude Pons
Jean-Yves Quetelard
Michel André Barriere
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Airbus Group SAS
Original Assignee
Airbus Group SAS
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Filing date
Publication date
Application filed by Airbus Group SAS filed Critical Airbus Group SAS
Publication of EP0592259A1 publication Critical patent/EP0592259A1/de
Application granted granted Critical
Publication of EP0592259B1 publication Critical patent/EP0592259B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41F—APPARATUS FOR LAUNCHING PROJECTILES OR MISSILES FROM BARRELS, e.g. CANNONS; LAUNCHERS FOR ROCKETS OR TORPEDOES; HARPOON GUNS
    • F41F3/00—Rocket or torpedo launchers
    • F41F3/04—Rocket or torpedo launchers for rockets
    • F41F3/073—Silos for rockets, e.g. mounting or sealing rockets therein

Definitions

  • the invention relates to the temporary holding by strap of a plurality of objects against each other and then the release of these objects without ejection of debris.
  • These objects can be of the same nature or be divided into a main object and at least one secondary object.
  • It relates in particular, but not exclusively, to the transverse maintenance of guide shoes around a vector stored in a container and then the release of these shoes during the ejection of the greenness in the axis of the container, after its exit from this one.
  • such a container is carried by a mobile carrier (for example a truck) intended to convey the container to a place from where it is desired to launch the vector in the direction of the objectives to be achieved.
  • a mobile carrier for example a truck
  • the mobile carrier can support several containers, for example configured as a battery, each containing a vector.
  • the role of the container is to ensure the protection and immobilization (maintenance) of the vector during its storage and its transport then its transverse maintenance and its guidance at the very start of the launch, for the time necessary for the vector to leave the container.
  • the container internally with fixed support ramps axially running along the body of the vector, but at a distance from the latter so as to leave a clear passage section sufficient for the rear part of this vector, and to interpose radially, between these support ramps and the body of the vector, movable pads (sometimes called ejection mat) suitable for firmly immobilizing the vector in the container, transversely to the axis , as long as the vector remains in place then, at the start of the launch of the vector, accompany it to the outside of the container and finally move away from it because of the boundary layers of air along the vector during acceleration.
  • movable pads sometimes called ejection mat
  • documents FR-2,638,227 and FR-2,641,858 relate to the fixing of ammunition, which can be released transversely from a vector, by pinching the longitudinal flanges of these ammunition between the jaws linked to the vector, which is allowed 'spacing at the time of the ejection of these munitions from the vector, transverse to the axis thereof, for example under the effect of an airbag ejection system.
  • Such a type of positive connection has the drawback in particular of requiring the fitting of flanges and jaws on the elements to be held together (which is not always possible, in particular when for example the elements are made of wound composites ); in addition, the cooperation of the flanges and the jaws induces sometimes high stress concentrations.
  • document FR-2,652,642 proposes, for the maintenance of submunitions in a container embarked in a vector or missile, straps fixing each submunition to the walls of the container or to other submunitions .
  • the release of the submunitions is obtained by inflating airbags pressing transversely on the submunitions until the straps rupture in zones a priori unknown.
  • This release mode by breaking a strap is poorly controlled and parasitic vibrations, even shocks, can be applied to the submunitions when the straps break.
  • a transverse thrust often accompanied by a torque since the circumferential support is broken in one place, is always applied to the submunitions at the time of the strap rupture.
  • the document FR-2,656,414 likewise relates to the retention by straps of submunitions in a vector, with ejection of the submunitions transverse to the axis of the vector.
  • Each submunition is attached to a longitudinal wall of the vector by a strap, one end of which is engaged in a barrel which becomes free to rotate when the tension of the strap, due to the ejection thrust applied transversely to the submunition, exceeds a predetermined threshold.
  • Such a mode of submunition / vector carrier proves to be quite bulky and its behavior quite random (as for document FR-2,652,642); in addition, the straps whip and then remain hanging after ejection. In any event, this solution is limited to the case of a transverse ejection sufficient to cross the voltage threshold.
  • the invention aims to allow in a simple, reliable and space-saving manner the temporary holding of several (at least two) objects together by means of a strap, which is easier to use and more easily adaptable and less expensive than other more realistic systems, and the controlled release of these objects, thanks in particular to a removal of the support by the strap in several places (at least two) using a single release top, this release being done without debris, (therefore preferably mechanically rather than pyrotechnically to avoid any pollution) preferably with a delay assembly after a reference event, the strap splitting into sections each remaining linked to one or other of the objects (the sections which can for example be retracted in some of the objects).
  • the objects can be skids around a central body following a trajectory, but also a cluster of space satellites, or bodies dropped into the atmosphere etc ...
  • the invention provides a device for temporarily holding together a plurality of at least two objects comprising a strap surrounding this plurality of objects over at least part of a circumference, characterized in that this strap is provided in each of its two ends of a hooking piece comprising a bent retaining piece faced in traction with an additional retaining lug, against an elastic spacer tending to spread this bent piece vis-à-vis this lug complementary retaining, this complementary retaining tab and this strap, in a fastening zone located, near this end, being linked, with a non-zero relative circumferential movement, to different objects, this device further comprising a controllable system separation disposed on this circumference between said attachment zones and adapted to dissociate this strap into two sections.
  • Figures 1 and 2 show in cross section, for example in a vertical plane, two containers marked 1 and 1 'mounted on a carrier 2, generally mobile (a vehicle for example), and containing respectively two vectors 3 and 3' of longitudinal axes XX and X'-X 'parallel.
  • the containers are internally provided with longitudinal support and guide ramps 4, fixed relative to the container, along the body of the vectors, over at least part of their length, radially spaced from these bodies so as to leave spaces suitable for guaranteeing for the rear of the vector (conventionally provided with empennages) a passage section sufficient to avoid any direct contact. These spaces have in practice a constant radial dimension.
  • the vector here comprises at least one circumferential groove 6 into which ribs 7 of the pads penetrate.
  • the containers are here rectangular (to accommodate the empennages of the vectors) and are provided with three ramps respectively right, left and lower (an upper ramp is not useful, because of gravity, and would be in fact inconvenient for the passage of back air intakes).
  • the pads 5, 5 '(or “mat") are held against the body of the vector by a temporary connection device by releasable strap with these pads, identified 8 as a whole and shown in more detail in the figure. 3.
  • FIG. 3 are partially represented the three pads respectively marked 5A, 5B, 5C, as well as a strap, marked 10 as a whole, extending circumferentially on at least the three pads and provided at its two ends with two pieces of 'hooking 11 and 12 each comprising a bent piece 13 or 14.
  • Each of these bent pieces (here in the shape of a T) is faced, when the strap is stretched (arrows T) against complementary retaining portions formed here at the bottom of the legs hook-shaped retainer 15 and 16, each hook being split here for the passage of the longitudinal bar of the bent pieces 13 and 14.
  • retaining lugs 15 and 16 are themselves connected to one another by a cable 17, for example directly engaged in the groove 6 in FIG. 2, which at least temporarily ensures the connection of this cable to the vector .
  • this cable or the retaining tabs are fixed by simple wedging in this groove 6.
  • the cable 17 can be omitted if the retaining tabs can resist traction of the strap.
  • each of the attachment pieces formed at the ends of the strap may constitute the retaining tab for the other attachment piece in which case the strap extends all around the body of the vector.
  • the strap is provided, at each end, with an elastic element 18 urging the end concerned, and therefore the hooking part concerned, in a direction suitable for freeing the bent part of this hooking part from the tab. hook-shaped retainer.
  • This elastic element is here linked at one end to the strap and at its other end to a support linked to the vector, preferably secured to a pad temporarily linked to the vector.
  • This elastic element is here a compressed spring, when the strap is under tension, between an enlarged head 19 of the attachment piece and a bearing 20 provided by means of an enlargement of a groove 21 of the shoe in which can slide the strap.
  • At least the strap is attached to the pads with a possible circumferential movement, for example by simple rings such as that marked 19A in FIGS. 3 and 4.
  • a separation system 22 is disposed between the ends of the strap and is adapted to dissociate the strap into two sections under the action of an operating element, here delayed, shown diagrammatically at 23.
  • the strap device when the attachment parts are directly coupled in traction to one another (case envisaged above), the strap device may comprise a single elastic element.
  • the separation system 22 is interposed between two successive but independent strap sections 10A and 10B as soon as it is assembled, having respective neighboring ends which are temporarily secured to one another by the system 22.
  • the slackening of the tension of the strap implies a suppression in at least three zones of the support by the strap of the pads against the body: at the ends of the strap and at the location of the system 22.
  • the system 22 is in practice linked to one of the pads, here to the left pad 5C.
  • the strap is formed of a plurality of more than two sections, so as to comprise for example one section per shoe.
  • the strap of FIG. 3 thus comprises three sections, namely the section 10A extending from the system 22 to the attachment piece 13, the aforementioned section 10B temporarily linked to the section 10A by the system 22, and a section 10C at one end of which the attachment piece 14 is fixed.
  • the sections 10B and 10C have respective respective ends, temporarily linked to each other by a reel pulley with two grooves shown diagrammatically in 24 free in rotation about an axis at least approximately parallel to X-X.
  • the end of the section 10C is advantageously independent of this pulley so that it can be released; thus, after the tension of the strap has been relaxed by the system 22, the elastic element acting on the upper end of the section 10C causes the pulley 24 to rotate (and therefore rewind the section 10B), which is rendered possible by releasing the left end of the section 10B, until releasing the lower end of the section 10C (see FIG. 5A).
  • the system 22 and the reel pulley 24 have here similar structures in the sense that they both comprise two coaxial pulleys 22A, 22B and 24A, 24B, of axes parallel to XX, having axially opposite faces provided with radial ridges (marked 25 in FIG. 5) which guarantees that, when the pulleys are firmly pressed against each other by their ridged faces, they are coupled in rotation , and conversely when they can deviate axially from one another, they become independent of one another in rotation.
  • this possible axial dissociation of the pulleys is used to release the tension at the right time.
  • this possibility of axial dissociation is taken advantage of (see FIG. 5) to tension the strap, at the time of its fitting or at any later moment before the ejection of the vector. . It then suffices to axially couple the two pulleys by cooperation of an axial screw 26 passing through one of the pulleys with a threaded hole which is not visible from the other pulley to secure the pulley 24 until after release.
  • tensioning can also be done within the system 22, in particular when no pulley of the type 24 is provided or when the latter is in one piece. Of course any other known means of tensioning can be used.
  • FIGS. 6A, 6B and 6C The principle of the cooperation of the system 22 and the pulley 24 with a view to dissociating the sections 10A, 10B and 10C is given by FIGS. 6A, 6B and 6C where, for readability, the pulleys 22A and 22B and 24A and 24B are shown with different diameters, and where the notches of the pulleys where are retained enlarged heads mounted at the ends of the sections are shown diagrammatically by hooks.
  • each end of the sections (except the ends provided with the hooking parts, not concerned here) is at least wound on a portion of a circle on the associated pulley and its enlarged head which is there fixed is retained by the notch of this pulley. It is in this configuration that the strap can be tensioned.
  • the two pulleys which constitute it become free to rotate relative to each other under the effect of the tension of the strap on the one hand, and under the action of (or ) elastic element (s): the enlarged heads of the sections 10A and 10B are released from the pulleys 22A and 22B.
  • the release of the enlarged head of the section 10B allows the pulley 24 to rotate as a whole under the effect of the traction of the section 10C (FIG. 6B) until this section 10C is released from this pulley 24 (see FIG. 6C).
  • the separation device 22 and its operating element 23 shown very schematically in Figure 3 comprise a housing 30 containing the two pulleys 22A and 22B, which are held axially facing one to the other by their faces striated by a bush 31 (see FIG.
  • This calibrated orifice 40 is advantageously provided in a nozzle. 41 mounted by screwing such that the communication between the two parts of the housing takes place through the orifice 40.
  • this housing is filled with a fluid, for example simply air.
  • the piston disc 38 is subjected to the action of an elastic element (such as a spring) 42 urging it in a proper direction to move the rod until driving the ring between the fingers 33, thanks to the disc 37, and the nozzle 41 is arranged so as to brake this movement.
  • the rod 36 has a narrowed portion formed between annular bearing surfaces and adapted to penetrate into a slot 44 formed in an arm 45 (see FIGS. 7 and 9) pivotally mounted around an axis YY disposed away from the rod and subject to a torsion bar 46 of the same axis YY.
  • This narrowed portion 43 enters the slot 44 of the arm 45 for a position of the rod 36 in which the spring 42 is compressed.
  • the torsion bar 46 biases the arm 45 in a proper direction to move the slot 44 away from the rod radially and therefore allows this rod to move.
  • this arm release movement is prohibited by a pin 47 now facing an orifice 48 of the arm and an orifice of the housing 30, and to which a trigger wire 49 is attached, for example fixed to the container. It will be appreciated that the axes of the piston or of the pin are parallel to the axis of the vector and therefore to its trajectory.
  • the enlarged heads of the sections 10A and 10B are in practice housed in cavities or notches 22C and 22D of greater width and greater depth than the rest of the groove of the pulleys 22A and 22B.
  • these pulleys are surrounded on a part of their circumference (thus leaving slots 22E and 22F remaining by a wall portion of the housing 30 thanks to which these heads can escape only for a precise angular position of the pulleys .
  • Figure 14 shows an alternative embodiment where the pin 47 and the trigger wire 49 of Figure 7 are removed and where the blocking of the arm 45, so as to keep the narrowed portion 43 of the rod in the slot 44, is obtained , as long as the vector has not started its ejection stroke, with a finger linked to this arm which, in the vector storage configuration, faces a longitudinal section of one of the longitudinal support ramps.
  • FIGS. 15 to 17 show in detail the reel pulley 24 shown diagrammatically in FIG. 3. It can be seen that, here too, the pulleys 24A and 24B maintained faced by the collaboration of the screw 26 with a threaded hole in the pulley 24A, are here also protected by a housing 60, comprising slots 61 and 62 to allow for precise angular positions of the pulleys, the escape of the enlarged heads of the sections 10B and 10C.
  • FIGs 18 to 21 show an alternative embodiment of the end of the section 10C; the elements similar to those of Figure 3 are designated by the same references, but with the index "prime”.
  • the elastic element 18 ' As for the elastic element 18 ', it is inside a sheath 70, compressed between the head 19' of the section 10C and the transverse bearing surfaces 20 'of the sheath. It will be appreciated that this sheath ensures a connection of the strap to the shoe, with possible circumferential movement.
  • the pads advantageously comprise elastic metal bands 80 by which the pads are resiliently supported in the grooves 6 of the vector, but preferably axially away from the narrow portion 6A.
  • all three pads and their holding device has a mass of about 2.8 kg.
  • the cables making up the strap sections made of stainless steel type Z 10 CNM 17-9, have a section of 1.11 mm2 and a modulus of elasticity of 107,900 N.
  • the tension of the cables is 620 N for resistance to the rupture of approximately 2000 N.
  • the striations are dihedrons of 60 °, and are 45 mm long.
  • the radius of the pulleys is 12 mm.
  • the volume of the chamber 39 is 20 cm 3 and the section of the calibrated orifice 40 is 0.25 mm, which corresponds to a time delay of 2.5 sec at atmospheric pressure on the ground.
  • the pads are made of a composite material of the honeycomb type and are provided with metal inserts forming the rib 7.
  • the pads are positioned, then the cable 7, then the retaining parts.
  • the springs are placed 18.
  • the sections 10A, 10B and 10C are then positioned relative to the respective pads, the pulleys and the time-controlled operating element 23 are put in place, then the ends are engaged in the various pulleys, then puts in tension.
  • Figures 22 to 26 schematically show pluralities of two, three or four objects A, B, D and D held together by a strap device according to the invention.
  • the strap 100 cooperates at its ends with two retaining tabs 101 and 102 linked to one A of objects while the strap is attached to its ends, by connecting elements shown diagrammatically by rings 103 and 104, to the other B of the objects to which the separation element 105 is likewise fixed diagrammed by a shear.
  • Two springs 106 and 107 act on the strap from the rings according to the arrows shown.
  • the two ends of the strap 110 are engaged with each other, each being linked, by the rings 113 and 114, to different objects.
  • the separating element 115 is fixed to one of these objects.
  • Each end has a specific elastic element 116 or 117 associated with it.
  • FIG. 24 there is an arrangement similar to that of FIG. 22, with a strap 120 extending over a part of the circumference only, between two legs 121 and 122 linked to one of the bodies; on the other hand, the strap is, near its ends urged by elastic elements 126 and 127, linked by rings 123 and 124 to different bodies.
  • FIG. 25 there is an arrangement similar to that of FIG. 23 (the strap 130 extends over a whole circumference, its ends are engaged), but also to that of FIG. 24 (rings 133 and 134 carried by different bodies, however, a single elastic member 136 is provided to separate the ends of the strap.
  • FIG. 26 proposes an arrangement similar to that of FIG. 3, with a strap 140 cooperating at its ends with lugs 141 and 142 linked to an object A, formed of a section linked to an object B by a ring 143 and a section made up of two sub-sections each connected to an object by a ring 144 or 148, and coupled to one another by a pulley with two grooves 149.
  • each section is formed of two such sub-sections.
  • one of the sections is formed of at least three sub-sections coupled by at least two double-grooved pulleys.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Clamps And Clips (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
EP19930402146 1992-09-10 1993-09-02 Haltebandvorrichtung zum zeitlich Umschliessen von Gegenständen Expired - Lifetime EP0592259B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9210799A FR2695378B1 (fr) 1992-09-10 1992-09-10 Dispositif à sangle pour le maintien temporaire d'objets ensemble.
FR9210799 1992-09-10

Publications (2)

Publication Number Publication Date
EP0592259A1 true EP0592259A1 (de) 1994-04-13
EP0592259B1 EP0592259B1 (de) 1997-04-23

Family

ID=9433374

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930402146 Expired - Lifetime EP0592259B1 (de) 1992-09-10 1993-09-02 Haltebandvorrichtung zum zeitlich Umschliessen von Gegenständen

Country Status (5)

Country Link
EP (1) EP0592259B1 (de)
DE (1) DE69310074T2 (de)
ES (1) ES2100489T3 (de)
FR (1) FR2695378B1 (de)
NO (1) NO933219L (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU723233B2 (en) * 1995-05-31 2000-08-24 Warner-Lambert Company Isothiazolones
CN109945749A (zh) * 2019-04-18 2019-06-28 永卓防务科技有限公司 一种约束分离装置
US20220009633A1 (en) * 2020-07-10 2022-01-13 Sky Launch Corporation System and method for carrying an aeronautical or launch vehicle to altitude for release to flight

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434162A (en) * 1942-09-09 1948-01-06 Bombs
GB1189112A (en) * 1966-05-10 1970-04-22 Clark Stacatruc Ltd Improvements in or relating to Clamps
US3516702A (en) * 1968-06-26 1970-06-23 Us Navy Instantaneous tension load release device
DE2903938A1 (de) * 1979-02-02 1980-08-14 Messerschmitt Boelkow Blohm Streumunition
US4426755A (en) * 1981-08-05 1984-01-24 Westinghouse Electric Corp. Quick release girth band
US4627327A (en) * 1985-06-03 1986-12-09 The United States Of America As Represented By The Secretary Of The Navy Hybrid unitized shock and vibration mitigation system
US4646617A (en) * 1985-08-30 1987-03-03 Westinghouse Electric Corp. Shock absorbing support pad system
FR2652642A1 (fr) * 1989-09-29 1991-04-05 Aerospatiale Missile de largage de sous-munitions equipe d'un conteneur modulable.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434162A (en) * 1942-09-09 1948-01-06 Bombs
GB1189112A (en) * 1966-05-10 1970-04-22 Clark Stacatruc Ltd Improvements in or relating to Clamps
US3516702A (en) * 1968-06-26 1970-06-23 Us Navy Instantaneous tension load release device
DE2903938A1 (de) * 1979-02-02 1980-08-14 Messerschmitt Boelkow Blohm Streumunition
US4426755A (en) * 1981-08-05 1984-01-24 Westinghouse Electric Corp. Quick release girth band
US4627327A (en) * 1985-06-03 1986-12-09 The United States Of America As Represented By The Secretary Of The Navy Hybrid unitized shock and vibration mitigation system
US4646617A (en) * 1985-08-30 1987-03-03 Westinghouse Electric Corp. Shock absorbing support pad system
FR2652642A1 (fr) * 1989-09-29 1991-04-05 Aerospatiale Missile de largage de sous-munitions equipe d'un conteneur modulable.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU723233B2 (en) * 1995-05-31 2000-08-24 Warner-Lambert Company Isothiazolones
CN109945749A (zh) * 2019-04-18 2019-06-28 永卓防务科技有限公司 一种约束分离装置
US20220009633A1 (en) * 2020-07-10 2022-01-13 Sky Launch Corporation System and method for carrying an aeronautical or launch vehicle to altitude for release to flight

Also Published As

Publication number Publication date
FR2695378A1 (fr) 1994-03-11
DE69310074D1 (de) 1997-05-28
NO933219L (no) 1994-03-11
ES2100489T3 (es) 1997-06-16
FR2695378B1 (fr) 1994-12-02
DE69310074T2 (de) 1997-09-25
NO933219D0 (no) 1993-09-09
EP0592259B1 (de) 1997-04-23

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