FR2609492A1 - Anti-panic lock - Google Patents

Abstract

The lock S is capable of being opened permanently from inside, and may be combined with a lateral middle lock bolt 1 and/or two top and bottom lock bolts. It includes a U-shaped box 2 housing the mechanism with two parallel wings 6 which exhibit, in a zone 13, a greater height H; the end of this zone which is remote from the web 12 serves to support an articulation pin 14 which is orthogonal to the mean plane of the wings, for a control lever 15 intended to be actuated by the abovementioned suitable device B. This lever is fitted with a snout 21 interacting with return means R housed in the concavity of the U and arranged to convert the rotational movement of the snout 21 about the pin 14 into a second rotational movement about a pin 22 parallel to the web 12 of the U and orthogonal to the articulation pin 14; this second rotational movement may be imparted to a middle lock bolt 1 of the lock which moves laterally, substantially orthogonally to the mean plane of the wings of the U.

Description

ANTI-PANIC LOCK
The invention relates to an anti-panic lock of the kind which is intended to be mounted on a door frame, and which are capable of being permanently opened from the inside, by action on an appropriate device, in particular a bar. anti-panic, this lock can be combined with a lateral median bolt and / or two upper and lower pins.

 We know that such locks constitute security devices whose operation must be safe, so as to allow, in all cases, a rapid opening of a door, from the inside, in the event of panic, in particular in the event of 'fire.

The mechanisms of such locks should therefore be particularly robust in order to be able to operate continuously. To meet such a requirement of robustness, we are generally led to provide oversized parts capable of withstanding mechanical stresses much greater than those to which they will normally be subjected. As a result, this requirement for robustness leads to relatively large dimensions of the mechanisms and of the locks, in particular in the width direction. In general, the width of the lock corresponds to the dimension of this lock in a substantially horizontal direction parallel to the plan of the door on which the lock is mounted
This requirement for robustness is in conflict with contradictory requirements, notably linked to the evolution of the door structure, and to aesthetic concerns.

 The doors on which such locks are to be installed generally comprise a rigid peripheral frame inside which a filling material is provided. The lock is intended to be mounted and fixed on part of the frame. It is therefore appropriate that the width of the lock is not greater than the width of the elements, generally profiled elements such as tubes of rectangular or square section, constituting the frame. The tendency is to decrease the width of the profiled elements constituting the frame.

 This reduction in the width of the elements of the frame is only possible insofar as the panic lock, intended to be mounted on such a frame, is sufficiently narrow.

 This reduction in width is also sought for the sake of aesthetics.

 It is desirable, moreover, that the conditions for fitting the lock be facilitated, not only to allow time to be saved during assembly, but also to avoid improper assembly of such a security article.

 The object of the invention is, above all, to provide a panic lock, of the type defined above, which meets better than hitherto the various requirements of practice, in particular the requirements mentioned above, that is å -to say a relatively narrow lock, but one which remains robust, safe and easy to assemble.

 According to the invention, a panic lock of the kind defined above is characterized in that it comprises a chest with a U-shaped cross section in which the mechanism of the lock is mounted, this chest having two substantially parallel wings which have, in a zone, a greater height, the end of this zone remote from the core of the U serving to support an axis of articulation orthogonal to the mean plane of the wings, for a control lever intended to be actuated by the above-mentioned device suitable, this control lever being provided with a clean spout to cooperate with return means housed in the concavity of the U and agencies for transforming the rotational movement of the spout, about an axis orthogonal to the mean plane of the wings of the U , in a second rotational movement around an axis parallel to the U-axis and orthogonal to the axis of articulation of the lever, this second rotational movement being able to be communicated to a median bolt of the lock which can move laté generally, orthogonally to the mean plane of the wings of the U.

 Such a structure makes it possible to reduce the width of the mechanism as well as the overall width of the lock, while retaining a robust construction.

 Generally, an opening is provided in one of the wings of the U for the passage of the lateral median bolt.

 Preferably, the deflection means comprise a cam mounted rotatably about an axis parallel to the axis of articulation of the lever, this cam comprising a means of support suitable for cooperating with a stop integral with the median pin, which is mounted rotatable around said axis parallel to the ase of the U and orthogonal to the axis of rotation of the lever.

 The stop is advantageously constituted by a roller mounted to rotate about an axis parallel to the axis of rotation of the bolt, while the bearing means of the cam is formed by a spout having a dimension, in the direction orthogonal to the wings of the U, sufficient to remain in contact with the stop during the rotation movement of the bolt.

 The cam may include a drive means capable of cooperating with complementary means provided on a drive piece guided in translation against the internal face of a wing of the ccffre, in the longitudinal direction of this wing, this piece being suitable for drive a control rod with a high bolt and a low bolt. The cam drive means is advantageously con located by a pin, parallel to its axis of rotation, while the complementary means of the drive part is constituted by a notch, provided in this part, suitable for receiving the pin .

 The lock can be fitted with a handle handle; the lock then comprises a clean rod of rod coming into unilateral abutment against one end of the said drive part, this rod of rod being adapted to be moved by a nut control comprising a part articulated around an orthogonal axis å the core of the U, said follower control being rotated by a follower controlled by the stand, so that the movement of the stand produces a translation of the island rod, which pushes the drive piece which thus ensures control of the bolt (s) associated with the lock.

 The follower rod is mounted so as to be able to move in translation in abutment against the internal face of a wing of the U-shaped trunk, the drive piece constituting a main rod which is in abutment against the internal face of the other trunk wing.

 The lock may include a mechanism allowing control from the outside by a key, this mechanism comprising a profiled cylinder intended to be mounted in an opening in the axis of the support with its axis perpendicular to the plane of this core, this profile cylinder comprising a rotary bit inside the U; according to the invention, the panic lock mechanism comprises, ai ors, a rocker rotatably mounted about an axis orthogonal to the plane of the wings of the U. this rocker comprising an arm adapted to cooperate with the main rod to drive it in translation, and another clean arm coming to bear against a rocker control part, this control part being slidably mounted, between the wings of the U-shaped support, parallel to the plane of the web, the translational movement of the control part being obtained by the rotation of the bit which cooperates with an extension forming a pusher of the rocker control part.

 This rocker control part has a projecting part, parallel to the plane of the wings of the U, which forms a clean horn to come into abutment against the arm of the rocker away from the soul of the U.

 The panic lock can include a mechanism for locking the exterior by key; this mechanism comprises a locking pin suitable for being moved parallel to the web of the U, in a direction orthogonal to the plane of the wings of the U, by the bit of the profiled cylinder, when it rotates in the opposite direction to the direction intended to control the opening of the lock, a device with an inclined ramp and a pin being provided for controlling, during said rotation in the reverse direction of the bit, a sufficient translational movement of the rocker control so that the bit can perform more one complete turn without interfering with the rocker control pusher.

 The locking pin is suitable for coming to engage in openings facing a wing of the U of the trunk and the rod of the follower so that the latter can no longer be controlled, from the outside, Far the crutch and can no longer drive the main rod, the control of this main rod remaining possible from the inside by action on the lever.

 Thus, despite the condemnation from the outside, it is still possible to open the panic lock from the inside.

 The locking pin comprises a beard comprising two housings separated by a projection, for a pin secured to a groove capable of being moved against an elastic return means, by the bit, the displacement of the groove making it possible to remove the pin from a housing and unlocking the locking pin in the transverse direction orthogonal to the wings of the U, the bit then driving in translation the locking pin after its unlocking, the locking of the locking pin in its locking position being ensured by the return of the pin carried by the groove, in the other housing of the beard under the effect of the elastic return means.

 A lock according to the invention may have a total overall width equal to or less than thirty-six millimeters (36 mm).

 The lock box and the mechanism are advantageously enclosed in a two-part cover that can be letter in place after having placed the lock on the door.

 The control lever of the lock may have a width substantially equal to the interior width of the trunk. This lever preferably comprises, at its end remote from its articulation, a bulge comprising a passage hole for a bar for controlling the lock. This through hole may have an oval shape, the major axis of which, when the lock is in place on the door, is inclined relative to the vertical direction. The control bar is advantageously formed by a tube with an oval cross section similar to the cross section of the lever passage hole.

 The mechanical connection between the mechanism of the lock and the top and bottom pins preferably comprises a tubular control rod, which is connected, at its end remote from the lock, by a device with adjustable length, comprising a dowel expansion housed at the end of the rod and a threaded rod fitted with suitable nuts.

 According to an advantageous embodiment, the middle bolt is equipped with a safety counter bolt comprising retractable stop means capable of opposing a rotation of the bolt under the effect of a stress such as a picking force, other than that of normal opening means.

 The retractable stop means comprise on the side opposite to the keeper a tongue articulated on the bolt, on the side opposite to the axis of rotation of the bolt, this tongue being subjected to the action of a spring which tends to separate it from the pene, said tongue, in the separated position, being able to come to engage, on the opposite side to the keeper, against a stop secured to a control rod when this rod is not actuated by the opening means.

 The retractable stop means comprise on the side of the keeper a support piece, articulated on the bolt and subjected to the action of a spring more powerful than that acting on the tongue, this support piece being able to erase the tongue, when said support piece is released from external actions such as that of the keeper or that of an edge of the passage opening of the bolt.

 The tongue and, where appropriate, the support piece are mounted in a recess in the bolt comprised between two lateral flanges which carry the articulation axis common to the tongue and to the support piece.

 The invention consists, apart from the arrangements set out above, in a certain number of other arrangements which will be more explicitly discussed below in connection with specific embodiments with reference to the attached drawings, but which are not in no way limiting.

 Figure 1 of these drawings is a summary diagram of a door with a single leaf, equipped with a panic lock with a single lateral median bolt, and therefore with a single closing point.

 Figure 2 is a diagram of a door with a single leaf, equipped with a panic lock with two closing points.

 Figure 3 is a diagram of a single leaf door equipped with a panic lock with three closing points.

 Figure 4 is a diagram of a door with two leaves fitted with panic locks.

 FIG. 5 is a simplified view, in elevation, of a panic lock according to the invention, the trunk being cut along the line V-V, FIG. 6.

 Figure 6 is a left view with respect to Figure 5, the wings of the trunk being cut along VI-VI, Figure 5, and the lever being removed.

 Figure 7 shows, similarly to Figure 5, the lock in the open position, the lever being depressed.

Figure 8 is a section along the line Vlll-
VIII figure 7.

 Figure 9 is a section along IX-IX Figure 5.

 FIG. 1 is a section along line X-X in FIG. 5.

 Figure II is a vertical sectional view along the line Xl-Xl, Figure 12, and with parts broken away, of a lock according to the invention equipped with a handle-lever, the lever being withdrawn.

 Figure 12 is a view along the line Xll-Xll Figure 11, with parts broken away.

 Figure 13 shows, similarly to Figure 11, the lock in a position corresponding to the handle stand lowered.

 Figure 14 is a view along the line XlV-XlV Figure 13.

 Figure 15 similarly shows in Figures 5 and there a lock according to the invention equipped with a profile cylinder mechanism allowing the external locking of the lock using a key, the lever being removed.

 FIG. 16 is a view on the left with respect to FIG. 15.

 Figure 17 shows the lock of the figure. 15 in the open position.

 FIG. 18 is a view on the left with respect to FIG. 17.

 Figures 19 to 21 show the relative positions of certain parts of the lock, equipped with an external locking control using a key.

 Figure 22 similarly shows in Figure 5 the entire mechanism of a lock according to the invention, equipped with a stand and a key control using a profiled cylinder, the lever being in square.

 Figure 23 is a view on the left with respect to Figure 22, with parts broken away.

 FIG. 24 illustrates in elevation, with cut parts, the device for controlling, mounting and connecting an upper bolt with the lock.

 Figure 25 illustrates, on a larger scale, a detail of Figure 24 at the connection of the upper end of the control rod.

 Figure 26 is a bottom view with respect to Figure 25, with cut parts, on an enlarged scale.

 Figure 27 shows the mounting of the control bar and its connection with the lever of a lock.

 FIG. 28 is a view of a detail along arrow XXVIII in FIG. 27.

 Figure 29 is a perspective view of the two parts of the cover covering the lock after its installation on the door.

 Figure 3 is a view partly in horizontal section, partly in top view, of a lock whose lateral median bolt is equipped with a safety counter bolt, the lock being in the closed position.

 Figure 31 is a view along arrow XXXI, Figure 3, that is to say a top view, relative to Figure 3, along the line XXXI-XXXI, the bolt being cut.

 Figure 32 shows, similarly to Figure 3, the lock at the start of opening.

 FIG. 33 is a top view with respect to FIG. 32.

 Figure 34 shows, similarly to Figure 32, the lock open, the action of the user on the bolt having stopped, the door being removed from the frame.

 FIG. 35 is a top view with respect to FIG. 34.

 Figure 36 shows, similarly to Figure 3, the beginning of the closure.

 Figure 37 is a top view with respect to Figure 36.

 Figure 38 shows, similarly to Figure 36, a more advanced phase of the closing of the lock.

 Figure 39 is a top view with respect to Figure 38.

 Figure 4 shows, similarly to Figure 36, the lock almost closed, the bolt having started to enter the strike.

 FIG. 41, finally, is a top view with respect to FIG. 4.

Referring to Figures 1 to 4 of the drawings we can see, schematically represented various embodiments of panic locks. It is known that such locks are intended to be mounted on the interior face of a door in particular in places open to the public. The door opening control must always be possible from the inside. Generally, this control is provided by means of a transverse bar B pivotally mounted around a horizontal axis
AT.

 In the case of FIG. 1, the lock Sa comprises a single lateral median pin 1 which corresponds to a single closing point. The lock box 2a is fixed on an upright 3 of the door frame 4. This frame is generally made using metal profiles. It therefore appears that the minimum width I of the amount 3 of the frame cannot be less than the width IL of the boot of the lock Sa which must be fixed on this amount 3. A filling panel 5 is provided inside the frame 4 An articulation is provided for the bar B on the trunk 2. A second articulation is provided for the other end of the bar B on a support 6 fixed on the upright 7 of the door frame parallel to the upright 3. The bar B thus extends over the entire width of the door.

 FIG. 2 illustrates the mounting of a panic lock Sa with two upper and lower peninsulas 8 and 9 respectively, without lateral median pin. The action on bar B allows the simultaneous withdrawal of pins 8 and 9.

 FIG. 3 corresponds to an assembly with three closing points, with a lateral median pin 1 and two upper and lower pins 8, 9. The action on the bar B must on the one hand cause the withdrawal of the pin 1 in a direction horizontal transverse and, on the other hand, the withdrawal of the pins 8 and 9 in the vertical direction.

 While FIGS. 1 to 3 illustrate assemblies on a door with a single leaf, FIG. 4 illustrates an assembly of two anti-panic locks on a door with two leaves. On the left door leaf, the panic lock is with a single lateral median pin, similar to the diagram in Figure 1, while on the right door leaf, the lock is of two penes up and down, similar to the diagram of Figure 2. Other arrangements would be possible. For example, in the case of the door with two leaves of FIG. 4, one could provide on the left leaf two top and bottom closing points, as on the right leaf.

Regarding the opening from the outside of the building several cases can be considered
- no opening possible from the outside
- opening from the outside possible by action on a stand
- opening from the outside possible by action on a key;
- opening from the outside possible by action on a stand and locking with a key.

 Reference will now be made to FIGS. 5 and following which illustrate a panic lock S according to the invention.

 The lock S comprises a trunk 2 with a U-shaped cross section having two wings it, substantially parallel secured to a flat core 12. The lock mechanism is mounted in the concavity of the trunk 2.

 To facilitate the explanations, and simplify the drawings, FIGS. 5 to 18, which we now consider, show only the parts of the lock which are involved in controlling the opening from the inside, by action on a lever.

The wings Ie and II of the trunk have, as can be seen in FIG. 5, a substantially triangular contour, the base of which is parallel to the longitudinal direction of the core 12. In the area 13 of the apex of this triangle opposite the base, the wings 1, 11 have a greater height H. This zone 13 serves to support an articulation axis 14 orthogonal to the mean plane of the wings for a control lever 15 which extends downwards, when the lock is placed. The zone 13 is located towards the upper part of the wings 18 and 11, when the lock is placed. The axis 14 crosses the space between the wings 10 and it and is housed, at each of its ends, in a hole provided in these wings. The width d (FIGS. 8 to 11 of the lever 15 is preferably substantially equal to the distance between the faces
Internal wings 18 and 11.

 The lever 15 has a bent shape, at an obtuse angle, as visible in Figure 5; the upper part 16 of this lever has a bore crossed by the axis 14, while the lower part 17, of greater length than the part 16, is substantially vertical when the lever 15 is in the rest position on the mounted lock .

The lower end of the part 17 has a bulge 18 in which is provided a hole 19 of oval or substantially elliptical shape, intended to receive the control bar (not shown in FIG. 5) of the lock S, for opening from the inside. The major axis 2 of this hole 19 is inclined at an angle c with respect to the vertical direction, when the lever 15 is in the rest position (case of FIG. 5) the lock being correctly mounted.

Preferably, this inclination is provided in the direction which allows the upper end of the axis 2 to be closer to the friend 12 than the lower end of this same axis 2.

 The part 16 of the lever is provided, at its end remote from the part 17 with a spout 21 situated beyond the axis 14, with respect to the part 17. This spout 21 is suitable for cooperating with return means Boxes in the concavite of the U formed by the trunk 2.

 These return means R are arranged to transform the movement of rotation of the spout 21 around the axis 14, orthogonal to the mean plane of the wings Ie, 11, in a second movement of rotation around an axis 22 parallel to the core. 12 of the U, this axis 22 being also orthogonal to the axis 14 of articulation of the lever 15. This second rotation movement is communicated to the median pin 1 of the lock S; this pin 1 can thus move laterally substantially orthogonally to the mean plane of the wings ile, Il du U (see in particular FIGS. 8 to 1). An opening 23. in the form of a rectangular window, is formed in the wing ile to allow passage a spout 24 of the bolt 1 (see FIGS. 9 and the), suitable for hanging in a keeper fixed on a dormant part (not shown) so as to close the door. The axis 22 is carried by fixed bearings on the internal face of the wing.

 The return means R comprise a cam 25 (Figure 5) rotatably mounted about an axis 26 parallel to the hinge axis 14 of the lever. This axis 26 extends between the two wings Ie and II and is received at each of its ends, in a hole made in the corresponding wing. The axis 26 is closer to the core 12 than the axis 14.

Advantageously, the distance from the geometric axis of the axis 26 to the internal surface of the core 12 is substantially equal to half the distance from the geometric axis of the axis 14 to this same internal surface of the core 12. When the lock S is mounted, the axis 26, in the embodiment shown, is at a level higher than that of the axis 14.

 The cam 25, seen in elevation as in FIG. 5, has a shape reminiscent of that of a star with three branches, two branches 27, 28 of which are in the extension of one another, and the third branch 29 of which is substantially orthogonal to these first two branches. The axis 26 crosses the cam 25 substantially at the center of the star, the center from which the three branches 27, 28, 29 radiate.

 The branch 27 extends, from the axis 26, in the direction of the lever 15. The spout 21 of this lever is engaged below this branch 27. As can be seen in FIGS. 8 and 9, the branch 27 comprises two extreme lateral parts 3, 31 delimiting between them a space 32. A roller 33 is rotatably mounted, in this space 32 on an axis 34, parallel to the axis 26, extending between parts 3 and 31, and carried by these last. The spout 21 of the lever has a width less than the width d of the lever so as to be able to engage in the space 32.

 The branch 29 of the cam 25 comprises a support means formed by a spout 35 with a rounded end, suitable for cooperating with a stop 36 soidary of the pin 1. This stop 36 is advantageously constituted by a roller rotatably mounted on an axis 36a integral of the bolt 1 and parallel to the axis of rotation 22 of this bolt. The bolt 1 is located below the cam 25, in the position of the assembled lock S, and the stop 36 projects upwards in the direction of the cam.

This stop 36 is arranged on the bolt 1 so that its geometric axis (see FIGS. 8 to 1) is separated from the axis 22, in a direction orthogonal to the wings 1e and 11. Under these conditions, when the spout 35, following the rotation of the cam 25, exerts on the stop 36 a force in a direction parallel to the plane of the wings 1B and II and orthogonal to the axis 26, a couple biases the pin 1 in rotation about the axis 22 , in the opening direction, against a torsion spring 37 (Figure 18). This spring 37 is mounted around the axis 22 and urges the bolt 1 in the closing direction, that is to say so that the spout 24 projects outwards.

 The support means or spout 35 of the cam 25 has a dimension e (FIG. 6) in the direction orthogonal to the wings Ie and 11, sufficient to remain in contact with the stop 36 during the rotational movement. In practice, this dimension e of the nozzle 35 is substantially equal to the distance between the internal faces of the wings 1e and 11.

 The branch 28 of the cam 25 extends from the side of the axis 26 opposite the roller 33. This branch 28 has a narrower width at its end remote from the axis 26 and is provided with a side, a drive means, advantageously constituted by a pin 38 projecting transversely, parallel to the axis of rotation 26, and adapted to cooperate with a complementary means, advantageously formed by a notch 39. This notch is provided in a piece of drive 4 guided in translation against the inner face of the wing 11 of the trunk, in the longitudinal direction of the me 12, that is to say in the vertical direction when the lock is mounted.

 The guiding of the part 4 is ensured by means of a support 41 of a mechanism which will be discussed below, formed by a sort of rectangular parallelepiped-like block, fixed inside the U, against the internal face. of the core 12. The part 40 is constituted by a kind of flat rod arranged on edge against the core 12. The space delimited between the internal face of the wing 11 and the opposite face of the block 41 has a width equal, apart from the sliding clearance, to the transverse thickness of the part 4, which ensures the guiding of the latter.

 It should be noted that the mechanism support may include, on each of its lateral faces parallel to the wings Ie, 11, bosses such as 42, 42a (FIG. 5) which are in contact with the edge of the piece 4 opposite the soul 12.

These bosses 42, 42a as well as the friend 12, maintain the part 4 in a direction orthogonal to the plane of the core 12.

 The upper end 43 and the lower end 44 of the part 4e are bent at right angles, in the direction of the other wing ie. These ends 43, 44 extend perpendicular to the plane of the wings 1 and 11 and to the plane of the core 12, from the internal face of the wing 11 to the vicinity of the internal face of the wing. Each end 43, 44 has a notch 45 into which is clean to engage a lug 46 fixed to the lower end of the upper connecting rod 47 with the top bolt (not shown) and to the upper end of the rod lower link 48 with the low pene (not shown).

 Each head 46 comprises a part of smaller width (as explained in more detail with reference to FIGS. 24 and 26), suitable for being introduced into the notch 45, this part being between two discs of diameters greater than the width of l '' notch 45. Thus, when the narrow part is engaged in the notch 45, the discs located on either side of this part ensure the connection with the end 43 or 44 in the two directions of movement parallel to the longitudinal direction of the me 12. The head 4e is integral with a cylindrical extension 49 whose diameter is less than that of the discs described above. The diameter of this extension 49 is equal or slightly less than the internal diameter of the rods 47, 48 formed by cylindrical tubes. The extension 49 is engaged in the corresponding end of the associated rod and is fixed in this rod by a pin p (see Figures 24 and 26) forming a pin. The upper rod 47 is linked directly to the control of the high bolt, while the lower rod 48 is linked by means of a movement reversal mechanism (not shown) to the low bolt.

 A compression spring 58 (Figure 5) is provided to return the part 4 to the closed position, that is to say, in the embodiment shown, to the high position. This spring can be arranged between the upper end 43 and a stop 51 (FIG. 5) secured to the boot 2.

 This being the case, the operation of the mechanism for controlling the lock, from the inside, by action on the lever 15 is as follows (FIGS. 5 to 18).

 In the closed position, the lever 15 occupies the position shown in FIG. 5.

 For this position, the lateral median bolt I protrudes through the opening 23 (see FIGS. 9 and the) and therefore establishes a first point of closure by cooperating with a keeper (not shown). In addition. the part 4 occupies a high position; the upper rod 47 is pushed up as far as possible, which also corresponds to a closed position of the top pin. The lower rod 48 also occupies a high position; due to the movement reversing device (not shown), already mentioned above, the bottom pin (not shown) also occupies a closed position.

To control the opening, a push is exerted on the lever 15, for example through the bar
B, to bring this lever into the position of FIG. 7 which corresponds, according to the representation of the drawings, to a rotation of the lever around the axis 14 in the counterclockwise direction
The spout 21 of the lever, during this movement, lifts the roller 33 and rotates the cam 25 clockwise around the axis 26.

 On the one hand, the spout 35 of the cam by its push on the roller 36 rotates the bolt 1 around the axis 22 counterclockwise as shown in Figures 9 and island. The bolt 1 disappears towards the inside of the U, as shown in FIG. 8, so that its beak 24 no longer projects relative to the wing of the boot 2.

The opening is thus obtained.

 On the other hand, the rotation of the cam 25 in the clockwise direction (according to the representation of FIGS. 5 and 7) causes the workpiece 4 to be driven downwards, in the vertical direction, by the pin 38. The upper rod 47 therefore exerts a pull down on the top lug and causes the opening of the high point. The lower rod 48 moves downward and exerts a thrust on the movement reversal device (not shown) which causes the opening of the bottom bolt.

 This gives the simultaneous opening of the three possible closing points.

 The return mechanism R involving the cam 25 and the stop 36, allows the transformation of the rotational movement around the axis 14, orthogonal to the plane of the wings, in a rotary movement of the bolt 1 around the parallel axis 22 to the web 12 and to the wings le and 11. This mechanism allows a compact construction of the lock in the width direction, that is to say in the direction orthogonal to the wings îe and 11. The overall width g (see Figure 6) of the lock can be equal to or less than thirty-six millimeters (36 mm). The mechanism is mounted in the concavity of the trunk 2 formed by a U-profile which ensures a robust and relatively simple construction.

 it is clear, from the foregoing explanations, that the lock of FIGS. 5 to the shown and described for the most complex case of three closing points, can be suitable for a single median closing point, with the single bolt i (removal in this case of the connecting rods 47 and 48) or with only two closing points respectively top and bottom (removal in this case of the middle pin 1).

 Reference will now be made to FIGS. 11 to 14 which show a lock similar to that of FIGS. 5 to 5, but which is also equipped with a device for controlling the opening, from the outside, by a crutch handle 52. To simplify the drawings, the lever 15 of Figures 5 and 7 has not been shown.

 We find, in these figures Il 9 14, many elements already described in connection with FIGS. 5 to 11. These elements are designated by the same reference numerals, and their description will not be repeated.

 The mechanism support 41 comprises, on its face facing the core 12, a housing 53 in which is mounted, rotatable about an axis orthogonal to the core 12, a kind of arm 54, called "follower" by the after. This follower 54 comprises a sort of cylindrical base 55 provided on its two opposite faces with cylindrical extensions such as 56 of smaller diameter. These extensions 56 are suitable for engaging in guide bores formed, respectively, by a blind hole 57 provided in the support 41 and by a hole 58 passing through the core 12. The cylindrical base 55 is integral with an extension radial 59, directed downwards according to the embodiment of FIGS. 11 to 14, when the lock is mounted.

 The base 55 and the extensions 56 are crossed by a square hole se (FIG. 12) centered on the geometrical axis of rotation of the follower 54. This square hole is intended to receive a square axis 61 integral with the stand 52 whose control handle extends substantially at right angles to this axis 61.

 The lower end of the extension 59 has a rounded spout 62 turned on the side opposite the wing 11 and adapted to cooperate with a part 63 (FIG. 12) in the form of a circular sector, articulated around a geometric axis 64 orthogonal to the friend 12 of the U. The articulation of the part 63 is carried out in a manner similar to that of the base 55 by means of two cylindrical parts 65 projecting on either side of the part and received respectively in a blind cylindrical bore of the support 41, and in a hole provided in the core 12. The part 63 extends, radially, from the geometric axis 64, in the direction of the base 55.

The spout 62 thus cooperates with the upper zone of this part 63, the axis 64 being located below the spout 62, according to the representation of the drawings.

 The part 63, which belongs to the batch film control, is suitable for cooperating with a rod of the follower 66 (FIGS. 12 and 14) capable of being moved in translation against the internal face of the wing, in the vertical direction. according to the representation of the drawings.

 This rod 66 is provided with edge against the bottom of the friend 12 and slides in a space delimited by the internal face of the wing and the opposite face of the block 41.

This space is in a way the counterpart of that which guides the rod 4e located on the other side of the block 41. The latter comprises, on the side of the wing 1, one of the projections 42 42a similar to those described previously opposite the wing 11, and having the same rolls vis-à-vis the rod 66 as in the case of the rod 4. The end 67 of the rod 66 adjacent to the part 63 is bent at right angles towards wing II over a reduced but sufficient distance to allow the part 63, provided with a protruding rim, to exert a thrust on the rod 66, when this part 63 is rotated counterclockwise (according to the representation of FIG. 12) around the geometric axis 64.

 The other end 68, of the rod 66, or lower end according to the representation of the drawings, is also bent at right angles inwards. This end 68 abuts unilaterally against the lower end 44 of the rod 4, as visible in FIG. 12, when the lock is in the closed position.

The end 68 is located above the end 44, that is to say on the same side of this end 44 as the part 63. In the closed position, shown in FIG. 12, the part 63 is in contact with the upper end 67 while the lower end 68 is in contact with the end 44.

 Elastic return means (not shown) are provided to return the follower 54 and the stand 52 to the closed position corresponding to that shown in Figures II and 12 (stand 52 in the horizontal position).

 That said, the operation of the control of the lock, from the outside, by the stand 52 is as follows.

 In the rest position (stand 52 horizontal), the lock is in the closed position both for the central bolt 1 and for the top and bottom bolts.

 When a user presses on the stand 52 so as to rotate it, as shown in Figures 12 and 14, clockwise, the follower 54 is rotated clockwise.

 The piece 63, pushed by the spout 62 of the follower, rotates counterclockwise around the geometric axis 64, to arrive in the extreme position shown in FIG. 14.

 The part 63, during its rotation, exerts a thrust on the end 67 of the rod 66 which moves downwards. The end 68 of the rod 66 also pushes down the end 44 and therefore the rod 40.

 This downward movement of the rod 4 causes the opening of the top and bottom bolts, as well as the rotational movement of the cam 25 clockwise around the axis 26, due to the cooperation of the notch 39 and pin 38. The command to open the median bolt 1 is also obtained.

 it should be noted that the stand control device 52 does not interfere with the control of the opening from the inside by the lever 15.

 In fact, a push on the lever 15, as described above, always makes it possible to obtain the downward displacement of the rod 4. This displacement takes place without the rod 66 being entrained, the end 44 s 'then moving away from the end 68, the stand 52 remaining horizontal.

 Reference will now be made to FIGS. 15 to 18 which represent a lock similar to that of FIGS. 5 to 14 and which comprises a mechanism allowing control of the opening from the outside by a key, this mechanism comprising a profiled cylinder 69 (Figure 15) intended to be mounted in an opening of the core 12 of the support with its axis perpendicular to the plane of this EMS.

 The elements of the lock, shown in Figures 15 to 18, identical or similar to elements already described in connection with the previous figures will be designated by the same references, without their description being repeated.

 The mechanism support block 41 has an opening 7 (FIG. 16) extending that of the core 12, so as to be crossed by the profiled cylinder 69. This opening 7 is provided towards the end of the block 41 remote from the bolt 1, in the vicinity of the upper end of the lower rod 48.

 The cylinder 69 comprises a bit 71 rotatably mounted around the geometric axis 72 of the cylinder. The rotation of the bit 71 can be controlled by a key (not shown) inserted into the opening of the cylinder.

When the cylinder 69 is mounted in the opening 7, the bit 71 is located, in the direction of the axis A, inwards beyond the face of the neighboring part of the support 41, so as to be able to rotate compared to this support.

 The bit 71 has a radial extension 73.

 The lock mechanism of FIGS. 15 to 18 comprises a rocker 74 (FIG. 15) rotatably mounted about an axis 75 orthogonal to the plane of the wings Ie and II and carried by the support block 41. The rocker 74 is located between the face wing II and the opposite face of the support 41.

 The rocker 74 comprises an arm 76 provided, at its end remote from the axis 75, with a rounded part 77, suitable for cooperating with the main drive rod 4. More precisely, the rounded part 77 is received in a notch 78 of the rod 4 and bears against an edge of this notch 78 orthogonal to the web 12.

 The rocker 74 comprises another arm 79, substantially diametrically opposite the first arm 76 relative to the axis 75. This arm 79 is capable of coming to bear against a horn 8 secured to a part 81 for controlling the rocker.

 This part 81 comprises a sort of plate 82, parallel to the plane of the friend 12, (see FIGS. 15 and 16) mounted slidingly between the wings Ie and II of the trunk 2, parallel to the plane of the friend 12, against the face of the support block 41 located on the side opposite the core 12. The part 81 is retained against said face of the support block 41 by a cover 63 whose ends such as 84, which are thicker, are fixed, in particular by screws, against the support block 41. The part of the cover 83 located between the ends 84 determines, between its internal face and the opposite face of the support block 41 a free space of width i (FIG. 15) in which the plate 82 can slide, the thickness of which is equal to i to the nearest sliding clearance.

 The horn 8 is provided on the longitudinal edge of the plate 82 located in the vicinity of the wing 11, this horn 8 being located in a plane orthogonal to that of the plate 82. The base of the horn 82 is integral with the end of the edge of the plate 82 located on the side of the axis 75. This horn 8 has an extension, in the longitudinal direction, which deviates from the plane of the plate 82, in the direction of the rocker 74.

 At its other end, on the edge opposite to that provided with the horn 8, the plate 82 is provided with an extension 85 (see FIG. 16) whose lower end 86 (see FIG. 15) is bent at right angles towards of the core 12 so as to be able to cooperate with the extension 73 of the bit 71 which is situated, in the direction of the axis 72 (FIG. 15), on the side of the core 12 relative to the plate 82, against the plane of the internal face of this plate.

 The edge of the plate 82 adjacent to the cylinder 69 has a concave circular notch 87 (see FIG. 16) allowing the extension 73 to rotate.

 The lock S may include a mechanism for locking the exterior by a key. This mechanism will be described in more detail with reference to FIGS. 21 9 23. it should however be mentioned, as of now, that this mechanism comprises a locking pin 88 which appears in FIGS. 15 to 18. This pin is formed by a plate substantially rectangular outline, suitable for being moved parallel to the SME 12 in a direction orthogonal to the plane of the wings 18 and 11 by the bit 71 of the profiled cylinder, when this bit turns in the opposite direction to the direction intended to control the opening of the According to the representation of FIGS. 16 and 18, the direction of rotation of the bit 71 controlling the opening corresponds to the clockwise direction; the control of the locking bolt 88 is obtained when the bit 71 rotates counterclockwise.

 The plate forming the bolt 88 is slidably mounted in a recess of the support block 41, against the internal face of the plate 82 belonging to the part 81. The translational guiding of the bolt 88 is provided by a transverse rib 69 provided on the wall of the recess of the support 41, this rib having a rectangular cross section. Said rib 89 is capable of cooperating with a conjugate groove 9 provided in the bolt 88.

 The face of the bolt 88 located on the side of the plate 82 carries a pin 91 (FIGS. 15 and 16) which is engaged in a light 92 provided in the plate 82.

 This light 92 has the shape of an obtuse angle, of which a branch 93, directed downwards as shown in FIGS. 15 and 16, is parallel to the longitudinal edges of the plate 82, and to the wings 1 and 11, while the the other branch 94, rectilinear, is inclined relative to the longitudinal direction. The inclination of this branch 94 is such that said branch approaches the wing as and as one moves away from the branch 93. This branch 94 constitutes an inclined ramp which will be discussed later.

 The bolt 88 has, on each side, on its edge facing the cylinder 69, an extension such as 95, with a cross-section 96, determining a notch 97 which will be discussed in more detail with reference to FIGS. 19 to 21.

 That said, the control of the opening of the lock shown in Figures 15 to 18, from the outside, by a key, takes place as follows.

 When the key is removed from the profiled cylinder 69, the bit 71 occupies the position shown in FIGS. 15 and 16 and the radial extension 73 is directed downwards. The lever 74, biased by the part 4 which is returned to the closed position by the spring 50.

pushes back the 8th horn and the part 81 so that the pin 91 comes to bear against the start of the inclined branch 94.

The curved end 86 of the extension 85 is located in the vicinity of the extension 73.

 When a user, from the outside, wants to order the opening with the aid of a key (not shown), he introduces this key into the profile cylinder 69 and rotates it in a direction such as the bit 71 rotates clockwise according to the representation in FIG. 16.

The radial extension 73 moves angularly to the position shown in Figure 18.-
During this movement, the radial extension 73 pushes the extension 85 upwards (according to the representation of the drawings). The horn is growing (figure 17)
I arm 79 so that the rocker 74 rotates clockwise around the axis 75.

 The other arm 76 of this rocker 74 moves the control rod 4 downwards. Such displacement of the rod 4e controls the opening of the lock as explained above.

 It should be noted that the control of the interior from the lever 15 (not shown in FIGS. 15 to 18) is still possible, as is the control of the exterior by the crutch handle 52 (not shown in the Figures 15 to 18).

 it should also be noted that during this movement of the control piece 81, the pin 91 moves in the branch 93 and comes, at the end of the race, against the end of this branch as shown in FIG. 18.

 As already mentioned above, the lock S may include a mechanism for locking the outside by key. This mechanism will be described in more detail with reference to Figures 19 to 21, which show only the parts of the lock necessary for explanations of this condemnation from the outside.

 The locking bolt 88 is capable of coming to engage, by a transverse displacement in the direction of the arrow T in FIG. 2 in facing openings 98, cg provided respectively in the wing of the boot 2 and in the rod of follower 66 described above (see Figures 12 and 14). When the bolt 88 is engaged in these openings 98, 99, the follower rod 66 is blocked relative to the wing ie and can no longer be controlled, from the outside, by the stand 52 (see Figures II to 14) .

 The bolt 88 comprises, on the side of its end opposite to the notch 87, a window îee of substantially rectangular shape, the edge closest to the notch 87 comprises, at mid-length, a protruding protrusion and on the other, two housing 1e2, 103.

Such a window is generally called a "beard", this term being used subsequently to designate said window.

 A part 14 of substantially rectangular shape is slidably mounted, in a longitudinal direction parallel to the wings 1 and 11, in a housing 15 provided in the support 41. This part 104 is located against the locking pin 88 on the side opposite to the part 81 shown in Figures 15 to 18. The part 14 is also located above the profiled cylinder 69, that is to say between this cylinder and the rocker 74. A compression spring 186 is provided between the bottom of the housing 185 and the part 1e4 to push the latter towards the bit 71. The lower edge 1e7 of the part 14 has the shape of an obtuse angle turning its convexity towards the outside, this edge being symmetrical with respect to the longitudinal center line of said part 14. The two sides of the obtuse angle constitute inclined ramps capable of cooperating with the radial extension 73 of the bit 71.

 The part 14 further carries a pin 1e8, located on its longitudinal center line, and protruding into the window îee. When the part 14 is not subjected to the action of the bit 71, it is pushed back by the spring 16, and the pin 188 comes to be placed either in the housing 1e2 (FIG. 19), or in the housing 1e3 (FIG. 21 ) so as to lock the bolt 88 in the transverse direction, either in the open position (figure 19) or in the locking position (figure 21).

 The part 14 is generally called a term groove which will be used in the following description to designate this part 14.

 it should be noted that an opening 19 is provided in the wing II to allow receiving an edge of the locking bolt 88, in its open position (FIG. 19), what. makes it possible to give this pene 88 sufficient dimensions for good mechanical resistance, while having a minimum overall width IL for the lock S.

 This being so, the operation of the mechanism of condemnation from the outside, by a key, is as follows.

 In the open position corresponding to Figure 19, the locking pin 89 occupies the open or cleared position, allowing free sliding.

in the longitudinal direction, the rod rod 66. The control of the opening of the lock, from the outside, is possible by action on the stand 52 (Figures 11 å 14).

 To condemn this possibility of opening from the outside, the bit 71 is made to rotate anti-clockwise (FIGS. 19 to 21), using a key (not shown) engaged in the profile cylinder 69.

 The extension 73 of the bit 71 enters the notch 97 of the bolt 88 (Figure 19) passing near the cutaway 96 of the extension 95 adjacent to the wing 11, but without interfering with this extension.

 The extension 73 of the bit 71 then cooperates with an inclined edge of the end 17 of the groove 1e4.

 Continuing the rotation movement of the bit 71 in the counterclockwise direction causes the recess of the groove 14, with compression of the spring 16, as shown in FIG. 2. The pin leaves the housing 12 and therefore releases the bolt 88 according to the direction T.

 Continuing its counterclockwise rotation movement (see FIG. 21) the bit 71 Far its end 73 acts if the extension 95 located on the side of the wing ive. The locking bolt 88 is moved in translation and enters the openings 99 and 98 of the rod of rod 66 and the island wing. Simultaneously, due to the fact that the extension 73 has released the end 17 of the groove 14, the latter, under the action of the spring 186, descends and the pin 18 enters the housing 13 so as to lock the bolt 88 in the closed position.

 The follower rod 66 is now locked relative to the wing wing and the control, from the outside, of the opening of the lock by action on the stand 52 in order to move the rod 66 is no longer possible.

 By cons, the control of the opening from the inside, by displacement of the rod 4, which is located on the side of the block 41 opposite the rod 66, is still possible.

 The bit 71 can cross the angular position shown in Figure 21 and return to the rest position for which the radial extension 73 is directed downward, without interfering with the curved end 86 (see Figures 15 to 18) of the extension 85 of the part 81 thanks to the cooperation of the pin 91, carried by the bolt 88, and of the inclined ramp 94.

 Indeed, during the translational movement of the bolt 88, in the direction of the arrow T in Figure 2, the pin 91 (see Figure 16) moves in the same direction, from the position corresponding to the top of the obtuse angle formed by light 92.

 Such a transverse movement of the pin 91, by cooperation of the pin with the inclined branch 94, causes the part 81 to move in the direction of the longitudinal direction of the core 12, on the side opposite to the bolt 1.

 At the end of the transverse translational movement of the pin 88, the pin 91 will have arrived at the end of the branch 94 closest to the wing. The bent end 86 of the extension 85 will have moved, with the part 81, downwards as shown in FIG. 16 so that the passage of the radial extension 73 of the bit 71 is possible, in the anti-direction clockwise, for the return of this extension to the rest position (extension 73 directed towards the rod 48).

 Figures 22 and 23 show, similarly to Figures 5 and 6, the panic lock equipped with all the mechanisms described above. The elements are designated by the same reference numbers as those already used and their description is not repeated.

 The lock of FIGS. 22 and 23 makes it possible to simultaneously control three points (a midpoint, a high point and a low point).

 Control by lever 15 is still possible from the inside.

 From the outside, it is possible to open the lock either by the stand 52, or by a key inserted in the profiled cylinder 69.

 It is also possible to lock the opening using the stand 52, by the action of a key in the profiled cylinder 69 and displacement of the locking bolt 88.

We now refer to Figures 24 to 26 representing details of the mechanical connection between the
Decanism of the lock itself and the top bolt. Identical elements or playing roles analogous to elements already described in connection with the preceding figures are designated by the same reference numerals without their description being repeated.

 The upper connecting rod 47 is formed by a tube in which is engaged, at the upper end, an expansion plug 11 (FIG. 25) comprising, in a conventional manner, at its lower end a frustoconical nut 111 comprising a tapped hole 112 into which the end of a threaded rod 113 is screwed which protrudes longitudinally beyond the end of the rod 47.

The upper end of the peg is in abutment axis ale, by means of a support washer 114, against a nut 115 screwed onto the rod 113. The support washer 114 has two diametrically opposite flats, on its outline, to allow it to be grasped using a key.

The upper end of the rod 113 passes through a hole 116 provided in the base of a yoke 117 with a cross section in
U (see Figure 24) secured to the top bolt not shown. A centering nut 118 and a flange lock nut 119 are screwed onto the rod 113 so as to clamp the base of the yoke 117 together. It can be seen that it is thus possible to adjust the useful length of the rod 47 between the bent end 43 (FIG. 24) of the control rod 4 and the base of the yoke 117, using the threaded rod 113 and nuts 118, 119 which, according to their axial position, make it possible to adjust the distance h (figure 25).

 The centering nut 118 comprises, on the side of the yoke 117, a centering flange 116a. The diameter of the hole 116 is equal to that of this lîSa flange, and is greater than the diameter of the rod 113. A slot (not visible in the drawings) with a width less than the diameter of the hole 116, but equal or slightly greater than the diameter of the rod 113, communicates, in a radial direction, the hole 116 and an edge of the yoke. It is thus possible to bring the rod 113 transversely into the hole 116, in a manner similar to the entry of the part 125 of the head 46 into the opening 126 (see FIG. 26).

 The blocking of the pin 11 in the tube 47 is obtained by screwing the nut 115 while preventing the rod 47 from rotating. The nut 115 being in axial abutment against the washer 114 itself in abutment against the rod 47 and the upper end of the peg, the rotation in the proper direction of the nut 115 generates an axial traction on the nut 111 which causes expansion of the plug and its blocking inside the tube 47. It should be noted that the washer 114 allows the assembly to be held in place using a key or pliers, without having to tighten the tube 47. The top bolt (not shown) is mounted tascAlant in a box 12 whose longitudinal walls serve as guide walls for the yoke 117 linked to the bolt (not shown). The bottom of the housing 12e has two upper holes 121 extended upwards by a buttonhole 122 of smaller width.

 Two other holes 123 are provided in the lower part of the bottom of the case. The holes 121 have a diameter greater than that of the head of the fixing screws 124 while the width of the buttonholes 122 is less than the above diameters of the screw heads.

 The connection between the tube constituting the lower rod 48 and the low bolt can be carried out in a manner similar to that described for the rod 47.

 To install the lock S, we operate as follows.

 Laying templates are put in place for the trunk 2. The trunk 2 of the lock S is fixed and the bar support block such as 6 (FIG. 1).

 Then put the top boot 12 (and the bottom boot similar) in the following manner.

 The holes are made in the door frame for the screws 124 located on the side of the bolt (high screws in the case of the high bolt in FIG. 24), and a pre-tightening of these screws 124 is carried out.

 The casing 128 is put in place by inserting the heads of the screws 124 into the holes 121, and the casing 12 is adjusted by virtue of the possibility of the screws 124 sliding in the buttonholes 122.

 When the position of the housing 120 is correct, the two screws 124. The holes corresponding to the holes 123 of the housing 12e are then drilled in the frame of the door, then the housing 12 is definitively fixed by means of screws engaged in the holes 123.

 The head 46 provided at the lower end of the rod 47 is advantageously provided for locking the rod 47 in rotation relative to the end 43. For this, this head 46 comprises, between two disks of larger diameter, a flat part 125 (see Figures 24 and 26) of only rectangular section sen and reduced width e.

 The end 43 has an opening 126 whose internal wall is formed substantially by three-quarters of a circle whose diameter is equal to or slightly greater than the length L of the cross section of the part 125. This opening 126 opens out towards outside, by the slot 45 whose width f is equal to or greater than the width e of the flat part 125.

 Because the opening 126 does not extend along a whole circumference, a portion 127 substantially at right angles, forms a stop.

 The rod 47 comprises, in the vicinity of its end equipped with the head 46, two diametrically opposite holes t.

The head 46 is integral with the cylindrical end piece 49 engaged in the rod 46, this end piece 49 being traversed by a clean diameter bore to come into alignment with the holes t. A pin g is engaged in the holes t so as to pass through said end piece 46a and to ensure the connection between the rod 47 and the end piece 46a. The pin g has a length greater than the diameter of the rod 47 so as to project radially outward. The axis of the bore of the end piece 49 is parallel to the flats (see Figure 26) of the head 46, so that the projecting part of the pin g. also parallel to these flats, constitutes an orientation mark for the rod 47.

 To achieve the connection of the rod 47 and the end 43, this rod 47 is oriented so that the small dimension e of the part 125 is introduced into the slot 45 until it abuts against the wall of the opening 126. The rod 47 is then rotated counterclockwise according to the representation in FIG. 26, so that the part 125 is oriented transversely relative to the direction of the slot 45, and comes to bear against the stop 127. The rod 47 is then locked in rotation in an anti-clockwise direction relative to the end 43.

 The installation of the lock is facilitated by the method of connection of the upper end of the rod 47 with the high bolt.

 The positioning of the control rods or rods is carried out as follows.

We cut the rods 47, 48 (top and bottom case side) to the desired length, the fastener (head 46) on the lock side
S already fixed on the rods.

 The expansion pin connection system 11 is mounted at the other end of the tube constituting the rod 47 or 48.

 The centering nut 118 is removed as far as possible from the flange lock nut 119.

 The rod 47 is put in place, for example, by engaging the flat part 125 of the head 46 in the slot 45.

 The rod is turned a quarter turn around its longitudinal axis to lock the head 46 against the stop 127 (see Figure 26), then screw the centering nut 118 against the yoke 117 and tighten the lock nut 119 with flange. The rod can then neither rotate nor go outside.

 Figures 27 and 28 illustrate the connecting means between the transverse bar B and the lever 15 for controlling the lock.

 The crossbar B is formed by a tube with an oval cross section similar to that of the hole 19 of the lever 15 (FIG. 5). The end of this bar is engaged in the hole 19 and is provided with a device 127 with expansion plug 128 and screw 129, introduced into the end of the tube B. Tightening of the screw 129 causes the expansion of the pin 128 and the blocking of the tubular end of the bar B in the hole 19. It should be noted that due to the relatively large width k of the lever 15, it is possible to obtain the blocking of the end of bar B on a relatively wide driving range, which makes it possible to compensate for an inaccuracy in the cutting of bar B on the site.

 An intermediate lever 15a which is not associated with a lock, can be provided at mid-width of the door to serve as support for the bar B. This lever 15a has an opening 19a similar to the opening 19 freely traversed by the bar B. At its other end, this bar B is fixed in the opening 19b of a third support lever 15b, by an expansion device 127. This lever 15b serves as an end support and is not associated with a lock.

 FIG. 28 illustrates the lower end of the lever 15 fitted with the device 127.

Figure 29 illustrates, in perspective, the lock
S posed, on which a cover 13 covering is being put in place. This cover 13 is made up of two parts 131, 132 which cover the wings Ie and II of the trunk respectively and which admit, as a joint plane, the median longitudinal plane of the trunk 2, this plane being equidistant from the wings Ie and II and parallel to these. The parts 131, 132 have at their upper end and at their lower end semi-circular notches such as the 133 adapted to come to surround the rods 47 and 48 respectively.

 Another notch 134 with a substantially rectangular outline is provided in each part 131, 132 to allow passage of the lever 15. The two parts 131, 132 are assembled using screws 135 carried by the part 131 and suitable for being screwed into a threaded sleeve such as 136 integral with the internal wall of the part 132. Holes such as 137 are provided in the island wings, It of the trunk for the passage of the screws 135 and the sleeves 136.

 Advantageously, the screws 135 are carried captively by the part 131. For this, each screw 135 has a threaded end 138 having a diameter greater than the smooth rod 139 connecting the threaded end 138 to the head 14e of larger diameter. A threaded sleeve 141 is integral with the internal face of the part 131 and is intended to be crossed by the screw 135. The threading of this sleeve 141 corresponds to the thread of the end 138.

Thus, to engage the screw 135 in the part 131, it is necessary to screw the end 138 over the entire length of the sleeve 141. When this end 138 leaves the sleeve 141, towards the inside, the rod 139, of smaller diameter, can slide freely inside this sleeve 141.

 However, the screw 135 is trapped in said sleeve 141 and cannot be extracted therefrom by a simple axial displacement. To release the screw 135 again from this sleeve 141, the threaded end 138 must be engaged in said sleeve and the unscrewing operation performed over the entire length of this sleeve.

 The installation work is facilitated because the trunk 2 and the lock mechanism S are free from the cover 138 during installation. When the adjustments are complete, the cover 13 is quickly mounted on the trunk 2.

 This cover 138 can be made of aluminum or of light alloy die-cast. It should be noted that most parts of the mechanism of the lock S form a sub-assembly mounted in the support 41 which easily fits into the concavity of the boot 2.

 We consider. now, FIGS. 3e to 41 which show a variant embodiment Sd of the panic lock in which the central bolt lb is equipped with a safety bolt 142.

 The elements of the lock Sb identical or playing rtles analogous to elements described in connection with the Frequent Figures are designated by the same reference numbers, possibly followed by the letter b, without their description being repeated.

 The safety counter bolt 142 comprises retractable stop means 143 adapted to oppose a rotation of the bolt lb under the effect of a stress other than that of normal opening means, namely the rod or rod. control 4b combined with a cam (not shown) similar to the cam 25 of FIG. 5 intended to act on the stop 36b of the bolt lb, to rotate the latter around the axis 22b.

 According to the representation in FIG. 3e, the opening of the bolt lb corresponds to a rotation in the counterclockwise direction around the axis 22b.

We have represented, in figure 38, by an arrow
C a force developed by such a stress, for example, during an attempt to pick the lock in order to escape the bolt lb to the keeper 144 fixed in the frame 145. A part of the frame of the door 146 bearing the lock Sb is shown in Figure 3, in the closed position of this door.

 The face of the bolt lb facing the keeper 144 has a central recess 147, in the form of a groove, limited by two lateral flanges 148, 149, on the side of the bolt lb opposite the axis 22b.

 The retractable stop means 143 comprise, on the side opposite to the keeper, a tongue 15B articulated on the bolt lb. This tongue 150 has a curved shape substantially at a right angle, having a heel 151 facing the core 12b of the boot 2b. The articulation axis 152 of the tongue 158 is carried, in a tight manner, at its two ends, by bores provided in the lateral flanges 148, 149. This axis 152 is parallel to the core 12b and to the wings 10b, 11b, and is therefore orthogonal to the flanges 148 and 149.

 The tongue 150 is subjected to the action of elastic means constituted by a spring 153 which tends to spread the tongue of the bolt lb. More precisely. the spring 153 tends to rotate the tongue 150 around the axis 152 clockwise according to the representation in FIG. 3e. This spring 153, partially engages in a housing provided in the bolt lb. is supported, on one side against the bolt lb and. on the other side, against the tongue 15.

 Said tongue 150, in the remote position shown in FIG. 3, is capable of engaging, on the side opposite to the keeper 144, against a stop 154 formed by a tab cut from the rod 4b and bent at a right angle (see Figure 31) towards the inside of the boot 2b, perpendicular to the wings îeb, 11b. In the rest position of the rod 4eb, the stop 154 is located substantially in the same mean plane orthogonal to the wings îeb, llb as the tongue 15.

 On the other hand, when the user actuates the normal mechanism for controlling the lock, the rod 4b moves and the stop 154 (see FIG. 33) is offset by comparison with the tongue 158 which no longer engages against this stop.

 The retractable stop means 143 further comprise a support piece 155, located on the side of the keeper 144. This support piece 155 is articulated on the bolt lb, on the same axis 152 as the tongue 158. Said piece d 'support 155 is subjected to the action of a spring 156 which bears, on one side, against the bolt lb and, on the other, against the part 155. According to the representation of FIG. 3, the action the spring 156 tends to rotate the part 155 counterclockwise around the axis 152. The part 155, for its articulation, may have two ears extending on either side of the tongue 150, oriel in which are provided through holes for the axis 152. Said part 155 comprises, at its opposite end & the keeper 144, an extension 157 bearing against the tongue 15, on the side of this tongue opposite the spring 153.

 When the piece 155 is free to rotate around the axis 152, the action of the spring 156 is predominant over that of the spring 153 so that the extension 157 pushes the tongue 150 counterclockwise against the bottom of the recess 147 as shown in FIG. 34.

 The face of the support piece 155 turned towards the keeper 144 has a convex shape provided so as to allow the bolt 1b to perform the rotational movements necessary for its opening and closing.

 That said, the operation of the central bolt 1b, equipped with the safety bolt 142 is as follows.

 When the door 146 is closed, as shown in FIG. 3, the bolt 1b is engaged in the keeper 144 against which the convex face of the part 155 bears.

 The opening of the door 146 which would correspond, according to the representation of FIG. 3, to a displacement of the part 146 downward relative to the frame 145, is prevented by the cooperation of the bolt 1b and the keeper 144.

 If the bolt lb is subjected to a hooking force represented by the arrow C, exerts on the beak of this bolt in order to release it from the keeper 144, the bolt lb begins to rotate anti-clockwise around the axis 22b.

 However, after an angular displacement rela strongly weak, bringing the bolt in the position shown in broken lines in Figure 3, the heel 151 of the tongue 15 abuts against the stop 154 and blocks any subsequent rotation of the bolt lb in the direction anti-clockwise. Any possible rotation of the tongue 15 clockwise around the axis 152 is blocked by the extension 157 of the part 155 which is itself in abutment against the bolt lb.

 The safety function is therefore fulfilled by the latch 142.

 If, now, a user orders the opening of the lock Sb by normal means, the rod 4b, as explained above, moves in the trunk 2b and the stop 154 (see FIG. 33) deviates from the trajectory of the tongue 15B.

 The rotation of the bolt lb, anti-clockwise, in order to obtain the opening of the door, rotation obtained as explained previously by the cooperation of a cam (not shown in Figures 3e to 41) and the stop 36b is possible.

 During this rotation, the convex surface of the part 155 remains tangent to the keeper 144 or to the edge of the passage opening 23b of the bolt provided in the wing leb (FIG. 32). In practice, the spring 156 remains compressed and the part 155 remains applied against the bolt lb.

 FIGS. 32 and 33 illustrate this start of opening obtained with the normal control means, without any interference between the tongue 15 and the stop 154.

 The opening being initiated, and the bolt having escaped from the frame 145, which has been represented diagrammatically in FIG. 34 by a cutaway of the frame to reduce the space occupied by the drawing, the user can cease his action on the opening means and on the rod 4eb.

 The bolt lb substantially resumes the angular position of Figure 3, but the spring 156 rotates the part 155 counterclockwise around the axis 152 as shown in Figure 34, pushing the tongue is against the bolt lb .

 When closing the door. as shown in FIG. 36, the bolt lb is pushed back by the edge of the frame 145 with which it comes into contact. The bolt lb, according to the representation of FIG. 36, will rotate in the counterclockwise direction around the axis 22b. The external convex surface of the part 155 cooperates with the edge of the opening 23b of the wing lb closest to the door 146. This cooperation will cause the progressive closing of the part 155, that is to say the spring compression 156.

 However, at the beginning of the cooperation of the bolt lb and the edge of the frame 145, the part 155 is still moved away from the bolt lb (see FIG. 36), so that the tongue 158 is kept close to the bolt lb. The heel 151 can cross the stop 154 without interfering with it.

 The door continues to close. as shown in FIG. 38, the part 155 comes practically into contact with the bolt 1b, while the tongue 158 moves further from this bolt under the action of the spring 153.

 When the bolt lb arrives at the strike 144, the elastic means (not shown) for returning the bolt lb rotate the latter clockwise around the axis 22b, so as to cause it to enter the strike 44.

 During this rotational movement, the heel 151 of the piece 158 will meet the stop 154. The action of the plastic return means of the bolt lb being stronger than that of the spring 153, the latter will be compressed which allows the erasure of the tongue 158 and the crossing of the stop 154 to return to the closed position of FIG. 3.

Claims (20)

 1. Panic lock intended to be mounted on a door frame and which is capable of being permanently open from the inside, by action on an appropriate device, in particular a panic bar, this lock being able to be combined with a lateral median bolt and / or two upper and lower pins, characterized in that it comprises a chest (2) with a U-shaped cross section in which the lock mechanism is mounted, this chest having two wings (le, 11 ) substantially parallel which have, in a zone (13), a greater height (H), the end of this zone remote from the Sme (12) of the U serving to support a hinge pin (14) orthogonal to the mean plane of the wings, for a lever (15) for controlling the tines to be actuated by the aforesaid appropriate device (B), this control lever being provided with a spout (21) suitable for cooperating with return means (R ) housed in the concavite of the U and arranged to transform the rotational movement of the spout (21), around an axis (14) orthogonal to the mean plane of the wings of the U, in a second rotational movement around an axis (22) parallel to the core (12) of the U and orthogonal to the axis of articulation (14) of the lever, this second rotation movement which can be communicated to a median bolt (1) of the lock which can move laterally, substantially orthogonally to the mean plane of the ai of the U.  2. Lock according to claim 1, characterized in that the deflection means (R) comprise a cam (25) rotatably mounted around an axis (26) parallel to the articulation axis (14) of the lever, this cam (25) comprising a support means (35) capable of cooperating with a stop (36) integral with the median bolt (1), which is rotatably mounted around said axis (22) parallel to the friend (12) of the U and orthogonal to the axis of rotation of the lever.  3. Lock according to claim 2, characterized in that the stop (36) is constituted by a roller (36) rotatably mounted about an axis (36a) parallel to the axis of rotation (22) of the bolt (1 ), while the support means of the caze is formed by a spout (35) having a dimension, in the direction orthogonal to the wings (le, 11) of the U, sufficient to remain in contact with the stop (36) at during the rotary movement of the bolt.  4. Lock according to any one of the preceding claims, characterized in that the cam (25) comprises a drive means (38) capable of cooperating with a complementary dean (39) provided on a drive piece (4th ) guided in translation against the internal face of a wing (l1) of the trunk (2), in the longitudinal direction of this wing, this part (40) being suitable for driving a control rod (47, 48) of a high bolt and a low bolt.  5. Lock according to claim 4, characterized in that the means for driving the cam (25) is constituted by a pin (38), parallel to its axis of rotation (26), while the complementary means of the drive part (4) is constituted by a notch (39), provided in this part, suitable for receiving the pin (38).  6. Lock according to claim 4 or 5, equipped with a handle-handle control, characterized in that it comprises a rod rod (66) adapted to come into unilateral abutment against one end (44) of the above drive part (40), this follower rod (66) being able to be moved by a follower control comprising a part (63) articulated around an axis (64) orthogonal to the core of the U, said control of follower being driven in rotation by a follower (54) controlled by the stand (52), so that the movement of the stand (52) produces a translation of the follower rod (66), which pushes the driving part (4) which thus controls the bolt (s) (1) associated with the lock (S).  7. Lock according to claim 6, characterized in that the follower rod (66) is mounted so that it can move in translation in abutment against the internal face of a wing (1) of the trunk (2) in U , the drive part constituting a main rod (4e) which bears against the internal face of the other wing (11) of the trunk (2).  8. Lock according to any one of claims 4 to 7, characterized in that it comprises a mechanism allowing control from the outside by a key, this mechanism comprising a profiled cylinder (69) intended to be mounted in a opening of the core (12) of the support (2) with its axis perpendicular to the plane of this core, this profiled cylinder comprising a bit (71) rotatable inside the U and that a rocker (74) is rotatably mounted around an axis (75) orthogonal to the plane of the wings (le, 11) of the U, this rocker (74) comprising an arm (76) suitable for cooperating with the main rod (4) to drive it in translation, and another arm (79) capable of coming to bear against a control part (81) of the rocker, this control part (81) being slidably mounted, between the wings (le, 11) of the U-shaped support, parallel to the plane of the core (12), the translational movement of the control part (81) being obtained by the rotation of the bit (71) which cooperates with a prol ongement (85) forming a push-button on the rocker control part (81).  9. Lock according to claim 8, characterized in that the control part (81) rocker (74) has a projecting part, parallel to the plane of the wings (iB, 11) of the U, which forms a horn (8 ) suitable for coming into abutment against the arm (79) of the rocker (74) distant from the core (12) of the U.  18. Lock according to claim 8 or 9 comprising a locking mechanism from the outside by key, characterized in that this mechanism comprises a locking bolt (88) suitable for engaging in openings (98, 99) opposite a wing (1) of the U of the trunk (2) and the rod (66) of the follower so that the latter can no longer be controlled from the outside by the stand (52) and does not can more entralner the main rod (4th), the control of this main rod (4th) remaining possible from the inside by action on the lever (15).  ll. Lock according to claim Island, characterized in that the locking bolt (88) is adapted to be moved parallel to the web (12) of the U, in a direction orthogonal to the plane of the wings 11) of the U, by the bit (71) of the profiled cylinder, when it rotates in the opposite direction to the direction intended to control the opening of the lock, and that an inclined ramp device (94) and pin (91) is provided to control, when of said reverse rotation of the bit (71), sufficient translational movement of the rocker control (81) so that the bit (71) can perform more than one complete turn without interfering with the pusher (85) of the rocker control part (81).  12. Lock according to claim îe or 11, characterized in that the locking bolt (88) comprises a beard (island) comprising two housings (1e2, 13) separated by a projection (101), for a pin (leS) integral with a groove (14) suitable for being moved against an elastic return means (leS) by the bit (71), the displacement of the groove (14) allowing the pin (188) to come out of a housing and unlock the latch pin (88) in the transverse direction (T) orthogonal to the wings of the U, the bit (71) then driving in translation the latch pin (88) after unlocking, locking the latch bolt (88 ) in its blocking position being ensured by the return of the pin (leS) carried by the groove (1e4), in the other housing (13) of the beard under the effect of the elastic return means (les).  13. Lock according to any one of the preceding claims, characterized in that the trunk (2) of the lock and the mechanism (41) are enclosed in a cover (13) in two parts (131, 132) that the can be put in place after having put the lock (S) on the door.  14. Lock according to claim 13, characterized in that the two parts (131, 132) of the cover are assembled using screws (135) carried captively by one of the parts (131) and clean å be screwed into a threaded sleeve (136) integral with the internal wall of the other part (132).  15. Lock according to any one of the preceding claims, characterized in that the control lever (15) has a width (d) substantially equal to the interior width of the trunk (2).  16. Lock according to any one of the preceding claims, characterized in that the control lever (15) comprises, at its end remote from its articulation (14) a bulge (18) comprising a passage hole (19) for a lock control bar (B).  17. Lock according to claim 16. characterized in that the control bar (B) is formed by a tube with an oval cross section similar to the section of the passage hole (19) of the lever, the long axis (2) of this hole (19) being inclined by relative to the vertical direction, when the lock is in place on the door.  18. Lock according to any one of the preceding claims. characterized by the fact that the mechanical connection between the mechanism of the lock and the top and bottom pins comprises a tubular control rod (47, 48) which is connected, at its end remote from the lock, by a device with adjustable length, comprising an expansion plug (11) housed at the end of the rod and a threaded rod (113) provided with suitable nuts (118, 119).  19. Lock according to any one of the preceding claims, characterized in that the central bolt (ld) is equipped with a safety bolt (142) comprising retractable stop means (143) capable of opposing å a rotation of the bolt under the effect of a stress such as a hooking force (C), other than that of normal opening means.  2. Lock according to claim 19, characterized in that the retractable stop means (143) comprise on the side opposite the striker a tongue (15) articulated on the bolt (read), on the side opposite the axis of rotation (22b) of the bolt, this tongue (150) being subjected to the action of a spring (153) which tends to move it away from the bolt. said tongue (15) in the separated position, being capable of coming to engage, on the opposite side to the keeper (144), against a stop (154) secured to a control rod (4b) when this rod (4b) n is not activated by the opening means.  21. Lock according to claim 19 or 2e, characterized in that the retractable stop means (142) comprise on the side of the keeper (144) a support piece (155), articulated on the bolt and subjected to action of a spring (156) more powerful than that acting on the tongue (15e), this support piece (155) being able to erase the tongue (15) when said support piece (155) is released from external actions such as that of the keeper or that of an edge of the passage opening of the bolt.  22. Lock according to claim 21, characterized in that the tongue (15e) and the support piece (155) are mounted in a recess (147) of the bolt (lb), comprised between two lateral flanges which carry the hinge pin (152) common to the tongue (15e) and to the support piece (155).  23. Lock according to any one of the preceding claims, characterized in that its total overall width (g) is equal to or less than thirty six millimeters (36 mm).