FR2569756A1 - Belly-door lock on a turbojet pod - Google Patents

Belly-door lock on a turbojet pod Download PDF

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Publication number
FR2569756A1
FR2569756A1 FR8413331A FR8413331A FR2569756A1 FR 2569756 A1 FR2569756 A1 FR 2569756A1 FR 8413331 A FR8413331 A FR 8413331A FR 8413331 A FR8413331 A FR 8413331A FR 2569756 A1 FR2569756 A1 FR 2569756A1
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FR
France
Prior art keywords
bolt
operating member
door
lock according
support member
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
FR8413331A
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French (fr)
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FR2569756B1 (en
Inventor
Jose Gracia
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.)
Safran Aircraft Engines SAS
Original Assignee
SNECMA SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SNECMA SAS filed Critical SNECMA SAS
Priority to FR8413331A priority Critical patent/FR2569756B1/en
Publication of FR2569756A1 publication Critical patent/FR2569756A1/en
Application granted granted Critical
Publication of FR2569756B1 publication Critical patent/FR2569756B1/en
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/02—Fastening devices with bolts moving pivotally or rotatively without latching action
    • E05C3/06—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member moving otherwise than rigidly with the bolt
    • E05C3/08—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member moving otherwise than rigidly with the bolt the handle or member moving essentially towards or away from the plane of the wing or frame

Abstract

Belly-door lock on a turbojet pod, comprising a supporting member which is fastened to the outer covering of the door and on which is articulated a pivoting operating member which is connected by means of a link to a bolt mounted pivotally on the supporting member and capable of being based in the closed position on a fixed mounting of the structure of the pod. The operating member 8 and the bolt 16 are arranged on either side of a plane passing through the pivot axes 9,17 of the operating member 8 and of the bolt 16, and the connecting link 13 between the operating member 8 and the bolt 16 has a means for adjusting its length. The invention is used on a turbojet pod.

Description

Verrou de porte Ventrale sur une nacelle de turbo-réacteur
La présente invention a pour objet un verrou de sécurité utilisé sur la porte de visite des aéronefs, en particulier sur une porte ventrale de la nacelle d'un moteur.Ventral door lock on a turbojet engine nacelle
The present invention relates to a security lock used on the inspection door of aircraft, in particular on a ventral door of the nacelle of an engine.

Dans un autre domaine on connalt par le brevet FR-A 1.527.02I un dispositif de verrouillage de crochet pour une remorque qui comprend un organe de déverrouillage monté pivotant sur le corps du crochet et relié par une biellette à un loquet de verrouillage articulé sur le corps du crochet. In another field, there is known by patent FR-A 1,527.02I a hook locking device for a trailer which comprises an unlocking member pivotally mounted on the hook body and connected by a connecting rod to a locking latch articulated on the hook body.

Dans ce dispositif l'organe de déverrouillage et le loquet de déverrouillage sont disposés d'un même côté du plan passant par leur axe de pivotement. Or, une telle disposition n'est pas facilement utilisable dans un verrou destiné la porte ventrale sur une nacelle de turbo-réacteur et il ne permet pas d'obtenir la sécurité souhaitable. In this device, the unlocking member and the unlocking latch are arranged on the same side of the plane passing through their pivot axis. However, such an arrangement is not easily usable in a lock intended for the front door on a turbo-engine nacelle and it does not make it possible to obtain the desirable security.

Conformément à la présente invention l'or- gane de manoeuvre et le pêne sont situés de part et d'autre d'un plan passant par les axes de pivotement de l'organe de manoeuvre et du pêne et la biellette de liaison entre l'organe de manoeuvre et le pêne comporte un moyen de réglage de sa longueur. In accordance with the present invention, the operating member and the bolt are located on either side of a plane passing through the pivot axes of the operating member and the bolt and the connecting rod between the operating member and the bolt comprises a means for adjusting its length.

Dans cette disposition suivant l'invention les axes d'articulation de l'organe de manoeuvre de la biellette et du pêne ne sont pas coplanaires et forment un angle obtu tourné vers l'axe d'articulation du pêne sur l'organe de support. Il en résulte que le dispositif présente une sécurité supplémentaire en cas de dégagement intempestif du crochet. In this arrangement according to the invention the axes of articulation of the operating member of the rod and of the bolt are not coplanar and form an obtuse angle turned towards the axis of articulation of the bolt on the support member. It follows that the device has additional security in the event of untimely release of the hook.

De plus, par un réglage de la longueur de la biellette on ajuste le pincement entre le pêne et l'organe de manoeuvre de façon obtenir un serrage optimum. In addition, by adjusting the length of the link, the nip is adjusted between the bolt and the operating member so as to obtain optimum tightening.

Suivant une autre caractéristique de l'invention, sur l'axe d'articulation du pêne est montE pivotant un taquet présentant un crochet s'étendant à l'exte- térieur de l'organe de manoeuvre par un orifice prévu dans ce dernier et qui est susceptible d'être engagé contre l'un des bords de l'orifice sous l'action d'un ressort agissant dans le sens de la fermeture du crochet. According to another characteristic of the invention, on the axis of articulation of the bolt is pivotally mounted a cleat having a hook extending outside the operating member by an orifice provided in the latter and which is likely to be engaged against one of the edges of the orifice under the action of a spring acting in the direction of closing the hook.

D'autres caractéristiques et avantages de l'invention seront mieux compris à la lecture de la description qui va suivre d'un mode de réalisation et en se référant aux dessins annexés sur lesquels:
- la figure 1 est une vue en plan de l'in térieur d'un mode de réalisation du Verrou de porte ventrale sur une nacelle suivant l'invention ;
- la figure 2 est une vue en coupe du verrou en position de fermeture suivant la ligne II-II de la figure I;
- la figure 3 est une vue en coupe suivant la ligne III-III de la figure 2 ;
- la figure 4 est une vue en coupe suivant la ligne IV-IV de la figure 2
- la figure 5 est une vue en coupe suivant la ligne V-V de la figure 2
- la figure 6 est une vue en coupe du verrou en position d'ouverture.Other characteristics and advantages of the invention will be better understood on reading the following description of an embodiment and with reference to the appended drawings in which:
- Figure 1 is a plan view of the interior of an embodiment of the ventral door lock on a nacelle according to the invention;
- Figure 2 is a sectional view of the lock in the closed position along line II-II of Figure I;
- Figure 3 is a sectional view along line III-III of Figure 2;
- Figure 4 is a sectional view along line IV-IV of Figure 2
- Figure 5 is a sectional view along line VV of Figure 2
- Figure 6 is a sectional view of the lock in the open position.

Le verrou suivant l'invention représenté aux figures 1 à 5 comprend un organe de support constitué d'une plaque 1 en U fixée par des rivets 2 sur un revetement externe de la porte 3 qui est montée pivotante par rapport à la structure de la nacelle dont une partie est représentée aux figures 1 et 2 par une ferrure fixe 4q
La plaque 1 porte sur sa face interne un pontet 5 dont les flancs 5a, 5b, sont percés de trous 6 et 7 pour le passage d'axes d'articulation.The lock according to the invention shown in Figures 1 to 5 comprises a support member consisting of a U-shaped plate 1 fixed by rivets 2 on an external covering of the door 3 which is pivotally mounted relative to the structure of the nacelle a part of which is represented in FIGS. 1 and 2 by a fixed fitting 4q
The plate 1 carries on its internal face a bridge 5 whose sides 5a, 5b, are pierced with holes 6 and 7 for the passage of articulation axes.

Sur la plaque 1 est monté un organe de manoeuvre constitué d'une languette 8 montée de façon articulée autour d'un axe 9 engagé dans les trous 6 du pontet 5 de la plaque de support 1, Cette languette 8 comporte un orifice 10 pour le passage d'un crochet qui sera décrit ultérieurement.  On the plate 1 is mounted an operating member consisting of a tongue 8 mounted in an articulated fashion about an axis 9 engaged in the holes 6 of the bridge 5 of the support plate 1, This tongue 8 has an orifice 10 for the passage of a hook which will be described later.

Sur la languette 8 est articulée autour d'un axe 11 une chape 12 prévue à l'une des extrémités d'une biellette 13 dont l'autre extrémité est articulée autour d'un axe 14 entre les branches d'une chape 15 d'un pêne 16. On the tongue 8 is articulated around an axis 11 a yoke 12 provided at one end of a link 13 whose other end is articulated around an axis 14 between the branches of a yoke 15 of a bolt 16.

La biellette 13 est constituée de deux parties dont l'une présente une tige filetée 13a, qui est vissée dans un trou taraudé 13b de l'autre partie. Cette disposition permet de faire varier la longueur de la biellette 13 en vissant plus ou moins la tige filetée 13a dans le trou taraudé 13b. The link 13 consists of two parts, one of which has a threaded rod 13a, which is screwed into a tapped hole 13b of the other part. This arrangement makes it possible to vary the length of the link 13 by screwing more or less the threaded rod 13a in the tapped hole 13b.

Le pêne 16 présente un bras 16a, qui est articulé autour d'un axe 17 dans les trous 7 du pontet 5 de la plaque de support 1. D'autre part, le pêne 16 présente également un pied 18 par lequel il s'arqueboute en position fermée sur la ferrure fixe 4 de la structure de la nacelle. The bolt 16 has an arm 16a, which is articulated around an axis 17 in the holes 7 of the bridge 5 of the support plate 1. On the other hand, the bolt 16 also has a foot 18 by which it arqueboute in the closed position on the fixed fitting 4 of the structure of the nacelle.

Sur le même axe 17 est montée pivotante une ferrure 19 en U d'un taquet 20 présentant un crochet 21 susceptible de s'engager dans l'orifice 10 de la languette 8 et de venir en appui contre l'un des bords 23 de cet orifice 10 de la languette lorsque le verrou est en position de fermeture. On the same axis 17 is pivotally mounted a fitting 19 in a U of a cleat 20 having a hook 21 capable of engaging in the orifice 10 of the tongue 8 and coming to bear against one of the edges 23 of this orifice 10 of the tongue when the lock is in the closed position.

Entre ferrure 19 et les flancs 5a, 5b, du pontet sont disposées les spires d'un ressort 22 qui repousse le taquet 20 dans le sens horaire et le crochet 21 en position de fermeture contre le bord 23 de l'orifice 10 de la languette 8. Between the fitting 19 and the sides 5a, 5b of the trigger guard are arranged the turns of a spring 22 which pushes the cleat 20 clockwise and the hook 21 in the closed position against the edge 23 of the orifice 10 of the tongue 8.

Le verrou fonctionne de la manière suivante:
- Pour procéder au verrouillage on fait pivoter la languette 8 (Fig. 6) dans le sens horaire autour de l'axe 9 de telle sorte que l'articulation de l'axe ll se déplace de A en B et que le pène 16 est repoussé contre la ferrure 4. Le pied 16b, yient s'arquebouter sur la ferrure 4 tandis que le bord de la languette 8 vient se plaquer sur la face externe 24 du revêtement de la nacelle, le crochet 21 est alors repoussé par le ressort 22 et vient en prise contre le bord 23 de l'orifice 10 ménagé dans la languette 8, (Fig. 2).The lock works as follows:
- To proceed with the locking, the tongue 8 is pivoted (Fig. 6) clockwise around the axis 9 so that the articulation of the axis ll moves from A to B and that the bolt 16 is pushed back against the fitting 4. The foot 16b, arises there on the fitting 4 while the edge of the tongue 8 is pressed against the external face 24 of the covering of the nacelle, the hook 21 is then pushed back by the spring 22 and engages against the edge 23 of the orifice 10 formed in the tongue 8, (Fig. 2).

11 faut noter que dans cette position les trois axes (9, 11, 14) ne sont pas coplanaires et forment un angle obtu tourné vers l'axe 17 de telle sorte qu'il en résulte une sécurité supplementaire en cas de dégagement intempestif du crochet 21. It should be noted that in this position the three axes (9, 11, 14) are not coplanar and form an obtuse angle facing the axis 17 so that this results in additional safety in the event of untimely release of the hook. 21.

De plus le réglage de la longueur de la biellette 13 permet d'ajuster le pincement entre le pêne 16 et la languette 8 de façon à obtenir un serrage optimum. In addition, the adjustment of the length of the link 13 makes it possible to adjust the nip between the bolt 16 and the tongue 8 so as to obtain optimum tightening.

Pour procéder au déverrouillage (Fig. 2) on repousse le crochet 21 yers l'arrière qui pivote autour de l'axe 17 dans le sens antihoraire et on tire la languette 8 vers l'arrière également qui pivote autour de l'axe 9. To proceed with unlocking (Fig. 2), push the hook 21 yers back which pivots around the axis 17 counterclockwise and pull the tab 8 backwards which also pivots around the axis 9.

Dans un premier temps, le pene 16 tourne dans le sens antihoraire jusqu'à ce que les trois axes (9, 11, 14) soient alignés ; passé ce point mort le pène 16 tourne dans le sens horaire jusqu'au dégagement complet comme représenté à la figure 6. Initially, the bolt 16 rotates counterclockwise until the three axes (9, 11, 14) are aligned; past this neutral point the bolt 16 rotates clockwise until complete release as shown in FIG. 6.

Bien entendu l'invention n'est pas limitative et l'homme de l'art pourra y apporter des modifications sans sortir du domaine de l'invention.  Of course, the invention is not limiting and those skilled in the art may make modifications to it without departing from the scope of the invention.

Claims (5)

REVEND I CT I.RESELL I CT I. 1. Verrou de porte ventrale sur une nacelle de turbo-réacteur comprenant un organe de support fixé sur le revêtement externe de la porte et aur lequel est axticulé un organe de manoeuvre pivotant qui est relié par une biellette à un pène monté pivotant sur l'organe de support et susceptible de venir s'arquebouter en position fermée sur une ferrure fixe de la structure de la nacelle caractérisé en ce que l'organe de manoeuvre (8) et le pène (16) sont situés de part et d'autre d'un plan passant par les axes de pivotement (9, 17) de l'organe de manoeuvre (8) et du pène (16) et en ce que la biellette de liaison (13) entre l'organe de manoeuvre (8) et le pène (16) comporte un moyen de réglage de sa longueur.1. Ventral door lock on a turbojet engine nacelle comprising a support member fixed to the external covering of the door and to which is attached a pivoting operating member which is connected by a link to a bolt pivotally mounted on the support member and capable of being arquebouter in closed position on a fixed fitting of the structure of the nacelle characterized in that the operating member (8) and the bolt (16) are located on either side of 'a plane passing through the pivot axes (9, 17) of the operating member (8) and of the bolt (16) and in that the connecting rod (13) between the operating member (8) and the bolt (16) has means for adjusting its length. 2. Verrou suivant la reyendication 1 caractérisé en ce que sur l'axe d'articulation (17) du pêne (16) est monté pivotant un taquet (20) présentant un crochet (21) s'étendant à l'extérieur de l'organe de manoeuvre par un orifice (10) prévu dans ce dernier et qui est susceptible d'être engagé contre l'un des bords (23) de l'orifice (10) sous l'action d'un ressort (22) agissant dans le sens de la fermeture du crochet (21).2. Lock according to reyendication 1 characterized in that on the articulation axis (17) of the bolt (16) is pivotally mounted a cleat (20) having a hook (21) extending outside of the actuator by an orifice (10) provided in the latter and which is capable of being engaged against one of the edges (23) of the orifice (10) under the action of a spring (22) acting in the direction of closure of the hook (21). 3. Verrou suivant la revendication 1, carac térisé en ce que la biellette de liaison (13) entre le pêne (16) et l'organe de verrouillage est constituée d'une tige en deux parties dont l'une présente une partie filetée (13a) qui est engagée dans un trou taraudé (13b) prévu sur l'autre partie de la tige.3. Lock according to claim 1, charac terized in that the connecting rod (13) between the bolt (16) and the locking member consists of a rod in two parts, one of which has a threaded part ( 13a) which is engaged in a tapped hole (13b) provided on the other part of the rod. 4. Verrou suivant la revendication 1, caractérisé en ce que le pêne (16) présente une chape (15) sur laquelle est articulée l'une des extrémités de la biellette (13) un bras (16a) qui est articulé sur l'axe (17) solidaire de l'organe de support (1) et un pied (16b) qui s'arqueboute en position fermée sur une ferrure fixe (42 de la structure de la nacelle.4. Lock according to claim 1, characterized in that the bolt (16) has a yoke (15) on which is articulated one of the ends of the link (13) an arm (16a) which is articulated on the axis (17) integral with the support member (1) and a foot (16b) which arqueboute in closed position on a fixed fitting (42 of the structure of the nacelle. 5. Verrou suivant la revendication 1, caractérisé en ce que l'organe de support (1) est constitué d'une plaque en U fixée sur le revêtement externe de la porte (3) et portant sur sa face interne un pontet (5) dont les flancs sont percés de trous pour le montage des axes d'articulation de l'organe de manoeuvre (8) et du pène (16? 5. Lock according to claim 1, characterized in that the support member (1) consists of a U-shaped plate fixed on the external covering of the door (3) and carrying on its internal face a trigger guard (5) whose sides are pierced with holes for mounting the hinge pins of the operating member (8) and the bolt (16?
FR8413331A 1984-08-29 1984-08-29 VENTRAL DOOR LOCK ON A TURBO-REACTOR BASKET Expired FR2569756B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8413331A FR2569756B1 (en) 1984-08-29 1984-08-29 VENTRAL DOOR LOCK ON A TURBO-REACTOR BASKET

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8413331A FR2569756B1 (en) 1984-08-29 1984-08-29 VENTRAL DOOR LOCK ON A TURBO-REACTOR BASKET

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FR2569756A1 true FR2569756A1 (en) 1986-03-07
FR2569756B1 FR2569756B1 (en) 1989-02-03

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5068946A (en) * 1989-06-07 1991-12-03 Societe Anonyme Dite Hispano-Suiza Locking hinge assembly for an aircraft cowling
US8740148B2 (en) * 2007-12-13 2014-06-03 Airbus Operations Gmbh Device for limiting the deflection of a door arranged in a fuselage cell of an aircraft
EP3150785A1 (en) * 2015-09-30 2017-04-05 BAE Systems PLC Locking devices for doors of aircraft
GB2543943A (en) * 2015-09-30 2017-05-03 Bae Systems Plc Locking devices for doors of aircraft

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR946531A (en) * 1946-06-06 1949-06-07 Fairey Aviat Co Ltd Improvements to angled lever fasteners
US2927812A (en) * 1957-06-14 1960-03-08 Clark Hartwell Pivotable bolt latch
GB1153635A (en) * 1965-12-11 1969-05-29 Cooke Howard S & Co Ltd Improvements relating to Fastening Devices
US4159137A (en) * 1977-12-05 1979-06-26 Tridair Industries Adjustable multipivot panel latch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR946531A (en) * 1946-06-06 1949-06-07 Fairey Aviat Co Ltd Improvements to angled lever fasteners
US2927812A (en) * 1957-06-14 1960-03-08 Clark Hartwell Pivotable bolt latch
GB1153635A (en) * 1965-12-11 1969-05-29 Cooke Howard S & Co Ltd Improvements relating to Fastening Devices
US4159137A (en) * 1977-12-05 1979-06-26 Tridair Industries Adjustable multipivot panel latch

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5068946A (en) * 1989-06-07 1991-12-03 Societe Anonyme Dite Hispano-Suiza Locking hinge assembly for an aircraft cowling
US8740148B2 (en) * 2007-12-13 2014-06-03 Airbus Operations Gmbh Device for limiting the deflection of a door arranged in a fuselage cell of an aircraft
US9409641B2 (en) 2007-12-13 2016-08-09 Airbus Operations Gmbh Device for limiting the deflection on a door arranged in a fuselage cell of an aircraft
EP3150785A1 (en) * 2015-09-30 2017-04-05 BAE Systems PLC Locking devices for doors of aircraft
GB2543943A (en) * 2015-09-30 2017-05-03 Bae Systems Plc Locking devices for doors of aircraft
GB2543943B (en) * 2015-09-30 2018-06-06 Bae Systems Plc Locking devices for doors of aircraft

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