FR2683579A1 - Arrangement for locking a movable member for closing an opening, such as a door - Google Patents

Abstract

The invention relates to an arrangement for locking a movable member for closing an opening, comprising a casing enclosing a mechanism for locking a device forming a lock bolt secured to the movable member, a remote-controlled locking device intended to lock the immobilising mechanism and a connecting device interposed between the locking device and the immobilisation mechanism. The arrangement is characterised in that the housing (5) is produced in the form of a housing of elongate shape in which the locking device (8), the connection device (9) and the immobilising mechanism (4) are arranged so as to be aligned along the axis of the housing, the locking element (62) can move parallel to the axis of the housing and the connection device (9) is produced in the form of a device which multiplies the locking force exerted by the locking device. The invention can be used for closing a door.

Description

 The invention relates to a locking arrangement of a movable member for closing an opening, such as a door, of the type comprising a housing preferably mounted on the fixed structure of the opening and enclosing a locking mechanism of a bolt device integral with the movable member and a remote control locking device intended to lock the locking mechanism in its locking position of said bolt device and comprising a locking element movable between locking and release positions of said mechanism , and a connecting device interposed between the locking device and the locking mechanism.

 Locking arrangements of this type are already known, but they have the major drawback that the force which the locking arrangement can resist is not high enough and that the housing is too bulky for certain applications.

 The object of the present invention is to propose a locking arrangement of the type described above which no longer has the drawbacks which have just been stated.

 To achieve this goal, the bolt bowl is made in the form of an elongated box in which the locking device, the connection device and the blocking mechanism are arranged so as to be aligned in the axis of the box, the element latch is movable parallel to the axis of the housing in a reciprocating rectilinear movement and the connection device is produced in the form of a device multiplying the locking force exerted by the latching device and comprises a plurality of levers with two arms, articulated to each other and mounted aligned between the locking device and the locking mechanism.

According to an advantageous characteristic of the invention, the housing comprises a profile in the form of a
U capable of being closed by a cover element also formed by a U-shaped profile, the locking mechanism comprises sliding means movable in the axis of the housing in a rectilinear movement back and forth between locking and release positions of the bolt device of the movable member, and guided by the walls of the housing.

 According to another advantageous characteristic of the invention, the slide means comprise, at the end situated on the side of the latch device, locking means comprising at least one pair of locking jaws each produced in the form of a lever with two pivoting arms around a fixed axis, the two jaw levers are laterally offset in the axis of the housing, articulated by an arm with sliding means while the end of the other arm is shaped to trap the bolt elements of the movable member in their locking positions, a window being formed in the housing to allow the passage of a bolt element in the housing.

 According to yet another advantageous characteristic of the invention, the sliding means comprise two U-shaped profiles axially engaged one inside the other and each articulated to a lever of said pair of jaw levers, the external profile forming the guide means of the internal profile while being guided itself by the walls of the housing.

 According to yet another characteristic of the invention, each slide section is articulated at each branch of its corresponding end at the end of an arm of a lever of the multiplier device, by an articulation axis carried by the lever and engaging in a light formed in each branch of the profile, this light comprising two portions inclined relative to the axis of the profile in opposite directions, one for retaining the locking mechanism in its locking position and the another to hold it in its release position, each time under the effect of a return spring acting on the lever, and tending to push back the hinge pin in the end zone of a portion of light.

 According to yet another characteristic of the invention, for an opening comprising two flaps, one of which bears on the other at their adjacent ends, in the closed position of the opening, the arrangement comprises a selector closing ensuring the closing of the two steering wheels in the predetermined order, this selector comprises a part produced in the form of a lever with two arms, one of which extends outside the housing in the path of movement for closing the shutter to be closed in first while the other arm is articulated to a rod which extends inside the housing towards a blocking device of a lever pivotally mounted in the housing and extending by its free end out of the housing in the path closing movement of the second flap, the blocking member being movable by said rod between a blocking position of said lever in its stop position and a release position of it allowing the closure of the second flap.

The invention will be better understood, and other objects, characteristics, details and advantages thereof will appear more clearly during the explanatory description which follows, made with reference to the appended schematic drawings given solely by way of example illustrating two embodiments of the invention, and in which
- Figure 1 is a sectional view along the line
II of Figure 3, of a first embodiment of a locking arrangement according to the present invention, the movable member being shown in its open position
- Figure 2 is a view similar to that of Figure 1 but shows the movable member in its closed position of the opening
- Figure 3 is a side view of the arrangement according to Figure 2, the bolt device being removed
- Figure 4 is a top view of a closing selector for a two-part closing device, and shows this selector in its open position of the two parts
- Figure 5 is a view similar to Figure 4, but shows the closure device in its closed position
- Figure 6 is a sectional view along the line
VI-VI of figure 5
- Figure 7 is a top view of the closing selector and shows it in a position for clearing the blocking body
- Figures 8 to 10 show the embodiment according to Figures 1 to 3 in similar views, but now equipped with a closing selector according to Figures 4 to 6
- Figures 11 to 12 are views similar to Figures 8 and 10 but show a second embodiment of the closure arrangement according to the invention
- Figures 13a and 13b are detail views of another version of a bolt element and a pair of locking jaws, in two different positions
- Figure 14 is a top view similar to the left portion of Figure 7, but also shows the locking device as a whole
- Figures 15 and 16 are sectional views with the cutaway, similar to those of Figures 1 and 2 but now equipped with an overlocking device
- Figure 17 is a sectional view along the line
XVII-XVII of figure 18
- Figure 18 is a line in section along the line XVIII-XVIII of Figure 14
- Figure 19 is an enlarged view of the part of the locking arrangement indicated by the arrow XIX in Figure 19; and
- Figure 20 is a view identical to Figure 19 but showing the arrangement in the release position of the bolt device.

 In the embodiment shown in the figures, the locking arrangement according to the invention is illustrated in its application to a door structure, the opening of the latter then forming the movable closure member. The opening and the frame of the door structure are indicated by reference numbers 1 and 2 respectively. The opening 1 carries a bolt device 3 secured to the opening and intended to cooperate with the locking mechanism 4 enclosed in a housing 5 which is fixed to the frame 2.

 The bolt-holder 5 is of elongated shape and is formed by a first U-shaped profile 6 intended to form the bottom of the case and a second U-shaped profile 7 which forms the cover of the case and covers the bottom profile 6.

In this profile are arranged aligned in the axis of the housing the locking mechanism 4 of the bolt device 3 when the door is closed, a locking device 8 adapted to lock the mechanism 4 in its locking position and a connecting device 9 arranged between the locking device 8 and the locking mechanism 4. This device 9 is configured to multiply the locking force produced by the locking device 8 at the locking mechanism 4.

 The locking mechanism 4 comprises, in the embodiment of the arrangement shown in FIGS. 1 to 3, two pairs 10 of locking jaws 12 and 13. The jaws have the shape of circular discs with a radial protrusion giving them the appearance of 'a cam. Each jaw is produced in the form of a lever pivotally mounted on a pivot 14 fixed at its ends in the bases of the bottom and cover sections 6 and 7. The two jaw levers 12 and 13 are laterally offset in the axis of the housing and have in the projection zone 15 which constitutes a lever arm a thickness reduced to half. The two levers overlap by this zone 15. The end of this arm has a notch 16 giving it the general shape of a U. As can be seen more clearly in FIGS. 19 and 20, the branches are of different shapes to be able to perform different functions. The branch 17 close to the side wall of the housing has the shape of a hook while the end of the other branch 18 has a substantially frustoconical profile. The two jaw levers 12 and 13 are arranged relative to each other in such a way that, when the door is open, the ends of the two hook branches 17 are separated from one another to allow the engagement in the space 18 delimited by the notches 16 of the two zones in mutual overlap, of a bolt element 20 in the form of a loop of the bolt device secured to the door, through a window 21 in the front wall of the boltier bottom profile at the two ends 17 of the jaw levers. As shown in FIG. 19, in this state of opening of the door, the two other branches 18 overlap each other and their internal front face forms a shaped bowl with a V opposite the bolt element 20. When the latter is pushed into the bowl, the levers 12 and 13 pivot in the direction of the arrows to the position shown in FIG. 20 in which the two hook branches overlap t mutually by passing through the loop of the bolt element 18. The latter is thus trapped by the two arms of the jaw levers.

 Each jaw lever 12, 13 carries at a location near its periphery and remote from its arm 15, a hinge pin 23 which extends parallel to the axis of the jaw and projects upwards and downwards. This axis engages in a slot 24 of oblong shape made in a branch of a U-shaped profile whose bases are oriented parallel to the side walls of the cover bottom profile 6. The profiles articulated to the levers 12 and 13 bear the references 25 and 26 respectively. The two sections are axially nested one inside the other, the section 26 being located outside. The two profiles are capable of sliding during the pivoting of the jaw levers in opposite directions. The external slide profile 26 comprises at its end adjacent to the multiplier effect connecting device 9 a portion 28 which has a height slightly less than the distance of the two branches of the housing bottom profile 6. Over the remainder of its length, the height of the branches is reduced so that the profile can pass between the side wall of the boltier bottom profile and the pivots 14 of the jaw levers. Thus the slide profile is guided during its axial movement in the cover bottom profile. The inner slide profile 25 is configured in a similar manner to the other profile so as to be guided between the internal face of the base of the latter and the internal face of the opposite side wall of the cover profile.

 The multiplier effect connecting device 9 essentially comprises a first lever with two arms 30 which is pivotally mounted on a pivot 31 implanted at its ends in the base walls of the two U-shaped profiles constituting the housing, and engages by its arm shorter b1 between the two portions 28 of the slide profiles 25 and 26. This is crossed parallel to the pivot 31 by a hinge pin 32 which engages in a slot 33 formed in the corresponding branch of the inner slide profile 26 and a light 34 in the branch of the outer slide profile 25. Each light comprises two portions 36, 37 inclined relative to the axis of the profile in opposite directions, one for retaining the locking mechanism in its locking position and the other to hold it in its release position, each time under the effect of a return spring 39 interposed between the other arm of the lever 30 and the front wall of the profile cover bottom 6. it should be noted that the light portion 37 has a relatively small inclination. It can also be seen that the two openings 33, 34 are oriented inversely so that these two superimposed openings constitute a V-shaped configuration. This allows the displacement of the two slides in opposite directions while being articulated to the lever 30. The second arm b2 of this lever 30 is crossed by a hinge pin 40 which extends parallel to the pivot 31 and engages in an oblong opening made at an angle in a plate in the shape of a right triangle 42. The two plates are pivotally mounted around a common pivot 43 located at its ends in the base walls of the two cover profiles and together constitute a second lever with two arms. The pivot 43 is arranged at the right angle of this lever. The lever 30 is articulated at the end of the shorter arm b3, while the ends of the longer arms b4 house a hinge pin 46 which constitutes a means of articulation to a rod 47 whose other end is articulated in 48 to the locking device 8.

 This locking device 8 comprises an electromagnet 50, the movable core 51 of which extends parallel to the axis of the housing and enters a locking mechanism 52 which is controlled by the electromagnet 50.

 The locking mechanism 52 comprises a sleeve of rectangular cross section 53 supported by a support block 54 fixed to the front wall of the housing. This sleeve which extends parallel to the axis of the housing receives the hollow end 55, also the rectangular cross section, of a rod 56 which is articulated by its other end at 48 to the rod 47.

The end 55 is axially displaceable in the sleeve 53. In the internal space of the hollow end 55 is housed a body 58. The latter is axially movable in its housing, against a return spring 59 which rests on the bottom of the cavity of the end 55. This body of substantially rectangular cross section comprises on the side of the electromagnet 50 a portion 60 of dimensions complementary to those of the internal space of the sleeve and a portion 61 located on the side of the spring 59 whose width is reduced relative to the width of the sleeve, symmetrically with respect to the median plane of the sleeve, which extends perpendicular to the bottom of the housing. The middle portion 62 has inclined surfaces which constitute ramps 63 each cooperating with a small roller 64. For each roller is formed in the wall of the end 55 a slot 67 through which the roller can partially penetrate into a triangular notch 65 made in the wall of the sleeve 53. Referring to FIG. 17, it is easily understood that the locking body 58 when it moves in the end 55 against the spring 59 pushes the rollers through the slots in the notches.

When the rollers are retained in this position, the end 55 and thus the rod 56 are locked axially in the sleeve. On the other hand, when the locking body 58 moves in the opposite direction, the rod 56 can move in the sleeve insofar as the rollers 64 will be pushed towards the inside of the end 55. To ensure the movement of the locking body 58, the movable core 51 of the electromagnet 50 engages in an axial bore made in the body 58.

 To complete the description of the locking mechanism, it can be seen that the sleeve 63 is formed by two U-shaped halves 69, 70 which are assembled by screwing.

 Figures 4 to 7 illustrate a closing selector for a double leaf door or flaps designated by 71 and 72. To close the door, the door flap 71 must first be closed and then the door flap 72 If the closing is done in reverse order, the locking cannot take place. It should be noted that the bolt device 3 is provided in this case on the door flap 72. The closing selector comprises a lever with two arms 73 which is rotatably mounted around an axis 74 fixedly mounted in the end of the housing, located on the side of the door flap 71. This lever projects by its arm 76 from the housing in the pivot path of the flap. It is pushed back into this position by a return spring, not shown. At the other arm 77, which is inside the housing, is articulated a rod 80 of flat shape which extends axially along the rear wall. from the enclosure to the area at the other end of the enclosure. This end houses a locking device 82 which is axially movable in the housing under the effect of the rod 80 connected to this device at 83. With this device cooperates a stop arm 84 which is pivotally mounted around a pivot 85 in the housing and is capable of pivoting between a position shown in FIG. 4, in which a protrusion 86 at its free end extends through a window made in the front wall of the bolt outward in the trajectory of the pivoting of the flap door 72 and a position withdrawn inward allowing the shutter 72 to close, as shown in FIG. 5. The locking device can be moved between a locking position of the arm 84 in the position shown in FIG. 4 preventing closing of the door flap 72 and a position allowing the clearing of the arm 54 towards the interior of the housing according to FIG. 5.

 The locking device comprises a sliding element 88 to which the rod 80 is articulated, in the shape of a U, the base of which extends parallel to the rear wall of the housing and which has a height corresponding to the distance from the front side walls and back. Thus the slide element is perfectly axially guided in the housing. In its front portion, the slider houses a pin 89 which extends between the two branches and is retained therein. This pin constitutes the blocking member of the arm 84 by engaging in a notch 90 provided in the free end of the arm behind the abutment protrusion 86. The arm 84 is released when the slide moves in the direction of the opposite end of the housing, which causes the pin 89 to be released from the notch 90.

 The locking device further comprises fuse-forming means for protecting the hinges of the door in the event of too great a force acting on the door flap 72 when the latter is blocked in its position shown in FIG. 4. These means comprise a body 92 which is pivotally mounted inside the slide 88 around an axis 95 located in the front part of the housing and fixed at its two ends in the lower and upper base walls of the two housing profiles.

The axis passes through the branches of the slide which are provided for this purpose with oblong slots 96 ensuring the axial movement of the slide.

 In the absence of an overload on the flap 72, the body 92 which functionally constitutes a lever with two arms occupies the position shown in FIGS. 4 and 5 in which it opposes any movement of the pin 89 other than in the axial direction of the bolt bolt. To this end it has in its portion adjacent to the arm 84 a notch 97 which extends parallel to the axis of the housing when the body 92 occupies the position according to FIG. 4. However the front face 98 of this end of the body 92 is shaped so that the stop arm 84 can pivot towards the inside of the housing when the body 92 occupies the position shown in FIG. 7, even when the slide is in its locked position. To this end, the face 98 has a concave curvature whose radius is slightly greater than the radius of the pivoting path of the free end of the arm 84. In order for this erasing pivoting of the lever 84 to take place, the branches of the profile in U shape of the slide each have a light 100 in the form of an arc of circle in which the pin 89 can move while remaining engaged in the notch 90.

 So that the body 92 cannot pivot until after the force has exceeded a threshold value, this body 92 is associated with a stop block 102 which is movable parallel to the axis of the housing against a spring. 103 bearing on a support block 104 fixedly mounted in the housing. The preload of the spring 103 is adjustable using a screw 105. The end of the second arm of the body 92 bears against an inclined surface 106 of the movable stop block 102. This surface is chosen so that the block of stop 102 can be pushed back by the body 92 after exceeding the threshold value of the force acting on the door flap 72 as shown in FIG. 7. It can also be seen by referring to this FIG. 7, that the end then cooperates with the stop block 102 has a surface 108 which is shaped so that the spring 103 can return the body 92 to its position shown in Figure 4 when the door flap 72 opens. It should also be noted that to allow pivoting of the arm 84 when the body 92 occupies the position shown in FIGS. 4 and 5, the adjacent end of this arm has in its front surface 98 a not shown recess allowing the passage of the end of arm 84.

 Figures 8 to 10 illustrate a complex locking arrangement comprising the arrangement of the type shown in Figures 1 to 3 and a closing selector according to Figures 4 to 7. It can be seen in particular that the two parts of the selector are housed on both sides and 'Other of the actual locking arrangement, the rod 80 then passing between the rear wall of the housing and the outer slide section 25 of the locking mechanism.

In this case, the rod contributes to guiding the slide profile.

 FIGS. 11 and 12 show a locking arrangement equipped with a closing selector, which uses a locking mechanism with a structure different from that shown in FIGS. 1 to 3. In the case of FIGS. 11 and 12, the jaw levers 11 and 12 are configured to be able to trap bolt elements comprising at their end a circular frustoconical head 110 comprising a circular shoulder 111 behind which hook-shaped elements 112 of the jaw levers can come into engagement, as shown in FIG. 11. The levers 12 of the two pairs of levers are now interconnected by a connecting rod 114. Such a rod is also provided for the levers 13 but is not shown. The slides are constituted in the case of FIGS. 11 and 12 by simple plates 115 whose width corresponds to the distance between the front and rear walls of the housing and which are applied laterally against the upper and lower base walls. The lever with two rectilinear arms 30 of the embodiment according to FIGS. 1 to 3 is replaced in FIGS. 11 and 12 by a lever in the shape of a right triangle 116 articulated to the plates 115 by a rod 117 without it being necessary to providing lights having the particular shape of the lights 33, 34 of the first embodiment. In comparison with this first embodiment, the lever 42 remains practically unchanged but the assembly of the two levers is subject to a return spring 117 tending to push the two levers in their most deployed configuration. In this second embodiment, the rod 80 of the closing selector extends as in the case of the first embodiment at the rear wall of the housing between the two sliding plates 115.

 Figures 15 and 16 show a locking arrangement equipped with an electromagnetic overlock device 120. In the case shown, the arrangement comprises only a single pair of jaw levers 12, 13 of the type shown in Figures 1 to 3, cooperating with a bolt element 20 while the other element 20 is associated with the overlocking device 120. The latter comprises an electromagnet 121 whose movable core 122 acts on an arm 123 mounted pivotally at one end and adapted to push by its free end a locking rod 124, against a return spring 125 in a position in which this rod traps the bolt element 20 in a receiving housing 126, as shown in FIG. 16. that the blocking and the release of the bolt element 20 are controlled by the opposing actions of the electromagnet 121 and of the return spring 125.

 To complete the description of the structure of the locking arrangement, the presence of microswitches 128, 129 will also be noted. The first gives information concerning the position of the door and, associated with the bolt device 3, can be actuated by a rod. command 130, (FIGS. 1 and 2) while the microswitch 129 provides information on the state of the locking device.

 The operation of the locking arrangement according to the invention is clear from the description of the structure of this arrangement, which has been made with reference to the figures. A specific description is therefore not necessary.

 The locking arrangement according to the invention has multiple advantages due in particular to the fact that it can be enclosed in an elongated box whose length is adaptable to the dimensions of the door. The arrangement according to the invention also has the advantage of a very small footprint while ensuring a very high blocking force due to the use of the multiplier effect connecting device 9.

This effect is due to the choice of the arm lengths of the two levers bî to b4, which are different for each lever.

Claims (14)

 1. Locking arrangement of a movable member for closing an opening, such as a door, of the type comprising a housing preferably mounted on the fixed structure of the opening and enclosing a blocking mechanism of a device forming bolt secured to the movable member, a remote control locking device intended to lock the locking mechanism in its locking position of the bolt-forming device and comprising a locking element movable between locking and release positions of said mechanism, and a connecting device interposed between the locking device and the locking mechanism, characterized in that the bolt bolt (5) is produced in the form of an elongated bolt bolt in which the locking device (8), the connecting device (9) and the locking mechanism (4) are arranged so as to be aligned in the axis of the housing, the locking element (62) is movable parallel to the axis of the housing in a reciprocating rectilinear movement and the connecting device (9) is produced in the form of a device multiplying the locking force exerted by the locking device and comprises a plurality of levers (30, 42; 116, 42) articulated to each other and mounted aligned between the locking device (8) and the locking mechanism (4).  2. Locking arrangement according to claim 1, characterized in that the housing comprises a U-shaped profile (6) forming the bottom of the housing and capable of being closed by a cover element also formed by a profiled U-shaped (7), the locking mechanism (4) comprises slide means (25, 26; 115) movable in the axis of the housing in a rectilinear reciprocating movement between locking positions and release of the bolt device (3) from the movable member (1), and guided by the walls of the housing (5).  3. Locking arrangement according to claim 2, characterized in that the slide means (25, 26; 115) comprise at the end situated on the side of the bolt device (3) locking means comprising at least one pair of jaws blocking (12, 13) each made in the form of a lever with two arms pivoting about a fixed axis (14), the two jaw levers (12, 13) are laterally offset in the axis of the housing, articulated by one arm by means of a slide (25, 26; 115) while the end of the other arm (15) is shaped to trap the bolt elements (20; 110) of the movable member (1) in their position blocking, a window (17) being formed in the front wall of the housing (5) to allow the passage of a bolt element in the housing.  4. Locking arrangement according to claim 3, characterized in that the slide means (25, 26) comprise two U-shaped sections axially engaged one inside the other and each articulated to a lever (12 or 13) of said pair jaw levers, the outer profile (25) forming the guide means of the inner profile (26) while being guided itself by the walls of the housing.  5. Locking arrangement according to claim 4, characterized in that each slide section (25, 26) is articulated at each branch from its corresponding end to the end of an arm (b1) of a lever with two arm (30) of the multiplier device by a hinge pin (32) carried by the lever and engaging in a slot (33, 34) formed in each profile branch, this slot comprising two inclined portions (36, 37) relative to the axis of the profile in opposite directions, one for retaining the locking mechanism (4) in its locking position and the other for retaining it in its release position, each time under the effect of 'a return spring (39) acting on the lever and tending to push the hinge pin in the end region of a portion of light.  6. Locking arrangement according to claim 3, characterized in that the slide means are formed by plates (115) to which the jaw levers (12, 13) are articulated and in that these plates are articulated at (117) to the end of an arm of a two-arm lever (116) of the connecting device (9).  7. Locking arrangement according to one of the preceding claims, characterized in that the connection device (9) comprises two levers with two arms (30, 42; 116, 42) of different lengths, which are articulated one to the other. the other at the ends of one arm and by the end of the other arm respectively to the locking device (8) and to the locking mechanism (4), the lengths of the arms (b1 to b4) being different and chosen so to obtain a multiplier effect of the force of the locking device, to the blocking mechanism.  8. Locking arrangement according to one of the preceding claims, characterized in that the locking device (8) comprises an electromagnet (50) whose movable core (51) controls the movement of the locking element (62) which comprises ramp means capable of pushing locking elements (64) into locking positions of a rod (56) articulated to the multiplier effect connecting device (9) in a member (53) which is mounted fixed in the housing (5).  9. Locking arrangement according to claim 7, characterized in that the fixed member (53) is formed by a sleeve in which axially engages the hollow end (55) of the rod (56) in which is mounted axially movable under the effect of the core (51) of the electro-element (50), against a return spring (59), the locking element (62), than the locking elements (64) are formed by bodies of revolution which are engaged in recesses (67) formed in the hollow end (55) and are capable of partially engaging in notches (67) formed in the inner face of the sleeve (53), under the effect of the ramps provided on the locking element (62).  10. Locking arrangement according to one of the preceding claims, characterized in that, for an opening comprising two closing flaps (71, 72) one of which (72) bears on the other (71) at the level of their adjacent ends, in the closed position of the opening, it comprises a closing selector ensuring the closing of the two flaps in the predetermined order, this selector comprises a part produced in the form of a lever with two arms (73 ) one of which (76) extends outside the housing in the pivoting path of the flap (71) to be closed first, while the other arm (77) is articulated to a rod (80) which s extends inside the housing towards a locking device (82) of a stop arm (84) pivotally mounted in the housing and extending by its free end (86) out of the housing in the pivoting path of the second flap (72), the locking member (42) being movable by said rod (80) between locking positions of said stop arm (84) in its stop position and a release position thereof allowing the closure of the second flap (72).  11. Locking arrangement according to claim 10, characterized in that the locking device (82) comprises means allowing the erasure of the stop arm (84) when the force acting on the flap (72) exceeds a threshold value predetermined, regardless of the position of the two-arm lever (73) associated with the flap (71).  12. Locking arrangement according to claim 10, characterized in that the two parts connected by the rod (80) of the closing selector are mounted in the housing (5) at the two ends thereof, on the one hand and on the other side of the assembly formed by the locking device (8), the multiplier effect connecting device (9) and the locking mechanism (4).  13. Locking arrangement according to one of the preceding claims, characterized in that it comprises, also mounted in the housing (5), an electromagnetic overlocking device, comprising a rod (124) for blocking a bolt element (20) inside the housing, under the effect of a pivoting lever (123) whose pivoting is controlled by the movable core (122) of an electromagnet (121).  14. Locking arrangement according to one of the preceding claims, characterized in that the length of the housing (5) is adaptable to the dimensions of the frame structure of the opening to be closed.