FR2847288A1 - Barrel bolt for door is housed in casing subdivided into fixed volume and variable volume parts, one grouping together drive mechanism controls and other receiving transmission parts - Google Patents

Abstract

The barrel bolt is housed in a casing composed of a case and a cover. There is a driving mechanism composed of a control part (3A) subjected to a return spring (25) able to act on the half-turn bolt (4). Transmission parts (3B) re-transmit the control part actions to an operating rod in the rear of a faceplate. The casing is subdivided into two parts (2A,2B) one of which (2A) groups together the drive mechanism control parts and the other variable volume part receives the transmission parts.

Description

The invention relates to a cylinder lock for a door, window or the like

  comprising, housed in a housing composed of a trunk and a cover, a drive mechanism composed, on the one hand, of control parts, such as a nut subjected to elastic return means in a position of reference and defined capable of acting on a half-turn bolt and, on the other hand, of planned transmission parts capable of retransmitting the action of the control parts at least on an operating rod extending in front above and / or below said housing, at the rear of a headrest which is defined capable of being joined to the latter, this cremonebarillet also comprising, as an operating part, a key barrel passing through said housing to ensure locking in position locking at least the rod (s) of

maneuver.

  The present invention relates to the field of building hardware and relates, in particular, to cremone bolts, the locking of which is done by means of barrel key cylinders, more

  commonly known as barrel cremones.

  There are already known a number of cremone bolsters corresponding to the above description which, if they

  provide satisfaction with the locking function they provide, have the drawback of integrating a complex control mechanism composed of a multitude of

  moving parts with a significant operating clearance.

  This results in an action on the locking members, such as operating rods, the stroke of which is difficult to control finely, which is moreover unequal from one rod relative to another, so that, in addition to the dimensional constraints of the window manufacturers, many adaptations are necessary for a good integration of such a barrel cremone bolt at a joinery, of the type

door, window or other.

  In particular, through this clearance of the control mechanism, variations may exist at the level of the stroke communicated to these operating rods between the unlocked position and the locked position. However, due to current developments which try to reduce the backlash between the opening frame and the sleeping frame of a door or window, these strokes are communicated to the operating rods.

  must be perfectly mastered.

  If, in addition, a large functional clearance can be the cause of a locking problem of the cremone-barrel, it also poses the problem of the stability of the parts, relative to each other, in a reference position to guarantee an assembly as well as a suitable mounting of such a barrel cremone bolt in the factory, on the one hand, and, on the other hand, on a joinery, taking into account that during this mounting this barrel cremone bolt can be brought to cooperate with complementary locking elements contributing, by

  example, to a perimeter locking of an opening.

  In fact, to ensure that these parts of a cremone-barrel control mechanism maintain this reference position during these assembly operations in the factory and assembly at a user, it is usual to immobilize them by means of temporary blocking means, susceptible

  to be removed or destroyed at the end of assembly.

  It is however common for such temporary blocking means to be retracted prematurely, so that the previously mentioned problems persist. Note, in this regard, that such temporary blocking means, often in the form of breakable plastic studs, are usually for single use. In short, they cannot be made active again, after their effects have been

  annihilated through, for example, wrong manipulation.

  Thus, a barrel cremone bolt is known comprising, housed in a housing, a drive mechanism consisting, in particular, of a follower provided in its center with an opening for the reception of an operating square on which is capable of act on the user via a handle

control.

  By means of an appropriate toothing, this follower is able to act on an easel connected to an operating rod, knowing that in the case of a barrel cremone bolt with bidirectional rods a transmission mechanism with reverser reflects the movement in a opposite direction on a second operating rod. Thanks to a control finger, this nut is further defined capable of acting on the tail of a spring return latch bolt in the locked position, taking into account that this nut is itself subjected to the action of return means. elastic to bring it systematically into a reference position and, consequently, the

  handle through which it is driven.

  Using the barrel, and therefore a key, that such a cremonebarillet comes to act on a locking bolt whose first function is to ensure the locking of the operating rods in the locked position. In certain configurations, it can also define a deadbolt by extending beyond the front face of a headrest to which the casing of this cremone barrel is secured and at the rear of which the said movement moves operating rods. Finally, it will be observed that this drive mechanism made complex by the multiplicity of the parts which compose it, is brought to take a position in a box whose size must be defined as small as possible to be able to be integrated in uprights structure, door type

  or window, of particularly reduced section.

  Added to this is the additional constraint that these cremones-barrels must respect well-defined dimensions at the level of the distance separating the axis of the follower and the front face of the headrest housing the rods

maneuver.

  In fact, it is easy to understand that by moving the follower towards the inside of the housing to allow it to comply with an imposed dimension, this inevitably has repercussions,

  on all parts of the drive mechanism.

  Also, the problem posed by the multiplicity of parts that make up the drive mechanism abounds that of the multiplicity of mechanisms to allow these cremonesbarillets to suit sections of various amounts of frames and openings. To this we must add that these different constraints very often make it necessary to extract and deport relative to the housing of the drive mechanism certain functions such as, for example, the movement reversal which allows a single directional cremone bolt to ensure a bidirectional displacement to

operating rods.

  In order to be able to respect the follower rating in the case of joinery with profiles of very small section, it is also usually necessary to come to occupy, in part, the backlash between opening and frame, or even another adjacent opening, in order to be able to place all the parts of the drive mechanism in the housing. It is then necessary to conform the headrest accordingly.

  arching it up to said housing.

  It is also very difficult, to satisfy all these requirements, to design barrel cremones capable of

  be suitable for both left and right application.

  In addition to meet this heavy specification, it is so far useful to use multiple manufacturing techniques, such as stamping, foundry, cutting, but it is also necessary to carry out an assembly by stage, with prior assembly of pennies and

  execution of various riveting, screwing operations, etc.

  Finally, by reconsidering a barrel cremone bolt and in particular its operation, the present invention was able to respond to the aforementioned problems. First of all through a housing subdivided into two parts, including a first part, located in the immediate vicinity of the headrest, which is of variable volume and, therefore, only accommodates parts coming to reflect transmission functions, in particular on the operating rod or rods located at the rear of said headrest, but also various functions such as braking, indexing, etc. on control parts which, in a second part, achieve a constant volume located in

  rear part of the case, ie beyond the variable volume.

  This allows, therefore, a very easy adaptation of these cremonesbarillet to a determined follower rating. More precisely, the separate parts according to this follower rating are reduced to a minimum. The invention also leads to a simplification of the drive mechanism of such a barrel cremone bolt, a simplification having the consequence of reducing,

  sensibly, functional games.

  Under these conditions, it is also conceivable to ensure, in the locking position, a direct blocking of the follower by means of the key cylinder, insofar as this blocking is passed on, with a minimum clearance, to said rods, then perfectly immobilized in this locked position. Furthermore, through parts of the drive mechanism taking position in the box trunk by successive stacking, the invention has also been able to respond to assembly constraints encountered so far. To this end, the invention relates to a barrel cremone bolt for door, window or the like comprising, housed in a housing composed of a box and a cover, a mechanism composed, on the one hand, of control parts, such as that a follower subjected to elastic return means in a reference position and defined capable of acting on a latch bolt and, on the other hand, provided transmission parts capable of retransmitting the action of the control parts to less on an operating rod extending from above above and / or below said housing, at the rear of a headrest of which is defined capable of being secured to the latter, this cremonebarillet also comprising, as control part , a key cylinder passing through said housing to ensure locking in the locked position of at least the operating rod or rods, characterized in that the housing is subdivided into two parts, the first of which is substantially co nstantly bringing together the control parts of the mechanism, the second part, of variable volume and interposed between the first part and the headrest to which the housing is made integral, accommodating the transmission parts and defining

  means for guiding the latter.

  It should be noted that the name supplements used to identify the parts taking position in this first and second part of the housing, namely control and transmission, have the sole purpose of distinguishing these parts according to their arrangement in the housing and have no limiting character from the point of view of the very function of these parts. According to another feature of the present invention, the control parts include a movement reversal wheel on which the follower meshes and which engages with transmission parts in the form of a first bridge connected to a first rod of maneuver extending over the housing and a second bridge engaged with a second rod extending in opposite direction. In the end the follower no longer directly attacks the rods, while the functional play in relation to each

of these is identical.

  According to the invention, on this reversing wheel being provided capable of acting a locking wheel disposed in said first part of the housing and capable of occupying, under the impulse of the barrel, a first position for locking in rotation of the wheel d 'inversion and a second release position. This lock wheel, on which the barrel acts, provides a

locking the follower with the key.

  According to another feature of the invention, in said second part of the housing, the trunk comprises braking means provided capable of cooperating with at least one bridge corresponding to a transmission part to ensure the maintenance of said operating rods in the locked position and / or unlocking in the absence of a pulse

on the follower.

  According to another feature of the invention, in said second part the housing, in particular the trunk, includes indexing means provided capable of cooperating with complementary indexing means at the level of the lock wheel so as to index the positions blocking and unblocking

  the latter. This results in indexing, of the clicclac type, directly felt by the user through the key.

  According to another feature of the invention, the tail of the latch bolt comprises hooking means provided capable of cooperating, with complementary hooking means housed in said trunk and designed to be retractable against the action of means of elastic recalls, to allow the latching and extraction of said latch bolt from the housing in order to ensure its reversal for a left application or

right side of the cylinder lock.

  Advantageously, the housing has an opening allowing access, through a control member such as a screwdriver, to said complementary hooking means in order to retract the latter against the action of said means of

elastic reminders.

  Advantageously, the easel (s) comprise two defined drive branches capable of cooperating with an operating rod symmetrically in the median plane

longitudinal of the latter.

  In particular, the parts making up the mechanism are designed capable of being stacked in the

box trunk.

  Furthermore, this box is itself produced by injection molding in synthetic material or in zinc alloy and comprises: - a socket for receiving the spring corresponding to the elastic return means; receptacles for receiving screws for fixing to the headrest; - An elastic tongue corresponding to the defined indexing means capable of cooperating with a toothing corresponding to the complementary indexing means that the lock wheel has at the periphery; - a housing for receiving the spring acting on the pusher corresponding to the elastic return means of the follower in its reference position; - A pivot provided with clipping means on which is provided capable of engaging the lock wheel; - means for holding and guiding the reversing wheel; an opening for receiving one of the ends of a central hub corresponding to the follower; - the means for guiding the easel (s); the elastic blade as well as the support wall (87) defining the braking means provided able to cooperate with

an easel.

  In fact, the housing not only has active walls, but, moreover, is defined without pillar or spacer,

nor hold.

  Other features of the present invention

  will appear during the description which follows

  relating to an embodiment given as an indication and

not limiting.

  Understanding this description will be facilitated by

  referring to the attached drawings in which: - Figure 1 is a schematic representation of a cremone bolt according to the invention; - Figure 2 is a schematic and exploded representation of this cremone bolt, being more particularly visible the parts of the drive mechanism and the housing; - Figure 3 is a schematic and plan view of the box trunk; - Figure 4 is a representation similar to Figure 3, the trunk of the housing accommodating, in this case, all of the components of the drive mechanism; - Figure 5 is a schematic and plan view of the follower; - Figures 6 and 7 show, schematically, the locking and unlocking positions of the lock wheel cooperating with the reversing wheel, being still visible the indexing means associated with this lock wheel and intended to cooperate with additional indexing means that the box has; Figure 8 is a schematic and perspective illustration of the control lever on which is provided capable of acting the follower to provide the reverse control of the latch turn, this control lever substantially defining additional retractable hooking means defined able to cooperate with the hooking means that the tail of the latch bolt comprises; - Figure 9 is a schematic and plan view of the housing cover having the opening allowing, through a control member such as a screwdriver, to push the additional retractable hooking means defined by the control lever of Figure 8 in a position for detaching the latch bolt; - Figure 10 is a schematic and plan view of the latch bolt; - Figure 11 is a partial perspective view of the drive mechanism, in particular the follower and its elastic return means in the form of a pusher; - Figure 12 is a view similar to the previous figure illustrating the cooperation through an idle stroke between the reversing wheel and the follower; FIG. 13 illustrates, in the form of a partial and perspective view, the part of the drive mechanism incorporating the control lever defining the complementary retractable hooking means capable of cooperating with the hooking means that the tail of the half turn bolt; As visible in the figures of the attached drawings, the present invention relates to a locking cylinder 1 for door, window or the like. It comprises, housed in a housing 2, a drive mechanism 3 making it possible to act on at least one half-turn bolt 4 and, bi-directionally, on operating rods 5, 6 extending, respectively, above

and below the housing 2.

  Ultimately these operating rods 5, 6 come to move behind a headrest 7 which is defined capable of being secured to the housing 2 designed by a trunk 8 whose bottom 9 defines one of the side walls of the box 2, knowing that this box 8 is closed by a cover 10 corresponding to the other side wall and extending, therefore, parallel to the plane of the opening of the door or window,

  is equipped with said barrel cremone bolt 1.

  The trunk 8 has a peripheral rim It defining the upper face 12, the lower face 13 and the rear face 14 of the housing 2 knowing that in the front part 15 it is closed through the headrest 7. In this regard at this level front part 15, the boot 8 includes housings 16 for receiving fixing screws 17 passing through appropriate openings 18

in said headrest 7.

  In fact and according to the invention, the box 2 is subdivided into a first part 2A of substantially constant volume accommodating the control parts 3A of the mechanism 3 and a second part 2B interposed between the previous one and the headrest 7 and which is, it, of adjustable volume and receives the

  3B transmission parts of this mechanism 3.

  It is specified once again that the name supplements used to identify the parts taking position in this first and second part of the housing, namely control and transmission, have the sole purpose of distinguishing these parts according to their arrangement in the housing and have no limiting character from the point of view of the very function of these parts. This comprises a follower 19 having in its center a passage 20 for the reception of a maneuvering square corresponding to a handle by means of which a

  user can rotate this follower 19.

  More specifically, it has a central hub 21, the ends of which are kept in rotation through openings of adjusted section 22, 23 in the side walls of the housing 2, ie at the bottom 9 corresponding to the boot 8 and in the cover 10, especially in

part 2A of the housing 2.

  If, as will be explained further in the

  description, this follower 19 is designed to act on the bolt

  U-turn 4 through a control finger 24, it is moreover subjected to elastic return means 25 in a reference position 26 corresponding to a position

  determined from the handle accessible to the user.

  More particularly, under the action of these elastic return means 25 and whatever the direction of rotation communicated to the follower 19, therefore to the handle, the latter is systematically returned to its initial position, often horizontal. According to the invention, these elastic return means 25, commonly called crutch return spring, are defined by a pusher 27 subjected to the action of a return spring 28 provided capable, in cooperation with drive fingers 29 , associated with said follower 19, to exert on the latter a return torque in said reference position 26, as soon as this follower 19 departs from the latter, by

  rotation in one direction or another.

  More precisely and as visible in FIG. 11, the pusher 27, under the action of the spring 28, is defined capable of exerting its thrust in a radial direction 31 to the follower 19, while the drive fingers 29, 30 with which it cooperates are, them, arranged symmetrically on either side of this radial direction 31 and at a distance

  determined from axis 32 of follower 19.

  Thus, during a rotation of the latter in one direction or another these drive fingers 29, 30 act on the

  push-button 27 against the action of spring 28.

  Advantageously, the pusher 27 comprises, opposite the drive fingers 29, 30 inclined planes 33, 34 giving it a defined V-shaped structure capable of ensuring a substantially constant compression of the spring 28 under the action of the fingers of drive 29, 30 during this rotation of the

  follower 19, they define the reference position 26.

  Finally, as can be seen in this figure II in this rest position, called reference 26, of the follower 19, the pusher 27 exerts an equal pressure on these drive fingers 29, 30, therefore opposing couples ensuring

the immobility of said follower 19.

  It should be observed that it is there again in part 2A of constant volume that the pusher 27 and its spring 28 take position, where they are moreover maintained and guided by appropriate means 27A which more particularly defines the

bottom 9 of trunk 8.

  Furthermore and as has been shown in more detail in FIG. 12, on the follower 19 meshes, with a determined idle stroke 35, a reversing wheel 36 corresponding to a control part 3A of the mechanism 3 and to which are connected, diametrically opposite, two easels 37, 38 capable of ensuring the retransmission of its rotation in linear form to the operating rods 5, 6. These easels 37, 38 are part of the transmission parts 3B of the mechanism 3, so that they pass through the adjustable part 2B of the housing and as such are themselves adjustable in particular according to the dimension of the follower 19, distance separating the axis of the latter from the

headrest 7.

  More particularly, this reversing wheel 36 comprises, substantially diametrically opposite, drive pins 39, 40 on which oblong slots 41, 42 are engaged which are formed in these easels, respectively 37, 38. In made these oblong slots 41, 42 extend substantially transversely relative to the

displacement of these.

  Advantageously, the easels 37, 38 are defined capable of reflecting their movement and therefore their efforts, symmetrically on the operating rods 5, 6

  considering the longitudinal median plane of the latter.

  More specifically, these easels 37, 38 comprise two drive branches shaped as "U" 45, 46 each provided with at least one connecting tongue 47, 48 on one of the walls of the "U" defined suitable to cooperate with a cutout 49 adjusted accordingly and symmetrically to the median plane

  longitudinal at said rods 5, 6.

  Advantageously, the part 2B of the housing 2 defines, through the walls 9, 10 which delimit it, means for guiding these easels 37, 38. More particularly, the spacing of the two drive branches 45, 46 corresponding to these easels is adjusted to that of said

walls 9, 10.

  This guidance function can be supplemented by part 2A of this housing 2. In particular, the easel 38, on which the reversing wheel 36 acts via its drive pin 40 furthest from the axis of the operating rods 5, 6, comprises a guide tongue 43 defined able to cooperate with a guide light 44

  formed in the rear face 14 of the housing 2.

  This arrangement makes it possible, in particular, to counteract the efforts with transverse components exerted on this bridge 38 due to this distance between the lug

  drive 40 and the axis of the operating rods 5, 6.

  To return to the idle stroke 35 to which reference was made above, it is defined with an amplitude corresponding, substantially, to the angular stroke capable of being imparted to the follower 19, for example to ensure its return to the position of reference from that which is given to it to obtain the locking of the operating rods 5, 6. Obviously, this idle stroke 35 still enters

force in other situations.

  It follows, substantially, from a cutout 51 produced on a sector 52 at the periphery of the follower 19, a cutout into which a control finger 53 corresponding to the reversing wheel 36 is inserted. Consequently, the idle stroke 35 corresponds to the movement capable of being communicated to the follower 19 in order to bring said control finger 53 of the reversing wheel 36 in cooperation with a stop plane 54, 55 laterally delimiting said cutout 51 in the follower 19,

  this starting from the opposite abutment plane, respectively 55, 54.

  Advantageously, again, under the effect of the control of a barrel 57, a lock wheel 56 forming part of the control parts 3A is provided capable of cooperating with the reversing wheel 36 to ensure its locking in rotation and, by way of consequently prevent the unlocking of the rods from

  operation 5, 6 at the instigation of the follower 19.

  Conventionally, the bolt of the barrel, under the effect of the rotation of a key, fits into a cutout 58 of this latch wheel 56 mounted in rotation under the reversing wheel 36 around an axis parallel to the axis of this latter therefore of the follower 19. It follows that this lock wheel 56 is provided capable of occupying a first locking position 59 and an unlocking position 59A. In the blocking position 59, it comprises a blocking tooth 60 coming to fit into a recess 61 of conjugate shape at the level of the reversing wheel 36. This blocking tooth 60 thus offers a stop plane 62 cooperating with a corresponding abutment plane 63 at the level of this recess 61 of the reversing wheel 36 preventing

  the latter to be pivoted in the unlocking direction.

  Advantageously, the follower 19, the reversing wheel 36 and the latch wheel 56 are located, in the part 2A of the housing 2,

  substantially in the same alignment parallel to the headrest 7.

  In addition, this part 2A of the housing 2, in particular the trunk 9, includes indexing means 64 provided capable of cooperating with complementary indexing means 65 at the latch wheel 56 so as to index the positions

  blocking 59 and 59A unlocking thereof.

  Preferably, the intervention of the control finger 24 corresponding to the follower 19 on the latch bolt 4 or, more particularly, the tail 66 of the latter, is not done directly, but by means of a lever control 67 advantageously defining retractable hooking means 68 able to cooperate with hooking means 69 associating with said tail 66 of the

U-bolt 4.

  In particular, the housing 2, for example the cover 10, has an opening 70 designed so as to allow access to a suitable tool, such as a screwdriver or the like, to these additional fastening means 68 to push them back, against the action of elastic return means 71, in a retracted position relative to the attachment means 69 of the tail 66 of the latch bolt, authorizing the withdrawal of the latter from the housing 2 and its reversal for an application of the cremone bolt- barrel as appropriate on the right or on the left. It should be noted, in this regard, that this tail 66 of the U-bolt 4 is designed symmetrical with respect to its axis

longitudinal 72.

  Thus, whatever the direction of the U-bolt 4, the tail 66 has, at its rear end 73 and at its upper edge 74, a cutout 75 defining, substantially, the attachment means 69 and in which can to accommodate a drive lug 76 which comprises the control lever 67 corresponding to the additional latching means 68. Note that the free end proper of this tail 66 of the latch bolt 4 is defined in a tapered shape. apt manner, during the establishment of this latch 4 in the housing 2, to push the control lever 67 against the action of the elastic return means 71 to allow the engagement of the drive lug 76 in

cutting 75.

  To return to this control lever 67, visible in FIGS. 4, 8 and 13, if the latter cooperates with the control finger 24 of the follower 19 through an end 77 located on one side of the transverse median plane 78 at the U-bolt 4, it is articulated, at its opposite end 79, on the other side of this transverse median plane 78, on a pivot 80 extending

from the bottom 9 of the trunk 8.

  In fact, at this end 79 the control lever 67 has an oblong slot 81 giving it relative mobility relative to said pivot 80 and allowing it to occupy an active position corresponding to the engagement of the drive lug 76 in the cutout 75 of the tail 66 of the latch bolt 4, as well as a retracted position o this lug

  drive 76 is released from this cutout 75.

  In the end and as indicated above, it is through a tool, such as a screwdriver, that this control lever 67 can be pushed back into this retracted position, knowing that through the opening 70 in the housing 2 this tool can come to engage in a corresponding opening

  For this purpose has been provided in this control lever 67.

  Furthermore, this position can only be reached

  acting against the action of elastic return means 71.

  Advantageously, these are the same elastic return means acting on the tail 66 of the U-bolt 4 to return the latter systematically to the advanced locking position. Thus, said elastic return means 71 are defined by a stressed spring 82, one end 83 of which is provided capable of acting on the control lever 67 and / or on the end 73 of the tail of the latch bolt 4 to push back the latter in its advanced locking position. Furthermore, the other end 84 of this spring 82 is defined capable of coming to bear on the control lever 67 so as to impart thereto an axial thrust having the consequence of keeping it in its active position, that is to say that the additional attachment means 68 which it defines cooperate with the attachment means 69 corresponding to the tail 66 of the bolt

U-turn 4.

  The control lever 67 and the elastic return means 71 are considered to be part of the control parts 3A and take position in the part 2A of constant volume of the housing 2 According to another feature of the present invention, the housing 2 comprises in its part 2A of the defined braking means 85 capable of maintaining the operating rods 5, 6 in a determined position. In fact, these braking means have the function of preventing, brought, for example, into the locking position and before the blocking takes place with the key, these operating rods 5, 6 fall back into position

unlocked.

  If it is true that this would prevent locking with the key, this braking function is also important when mounting the cylinder lock on a carpentry. Indeed, they guarantee that during this mounting said operating rods 5, 6 maintain a determined position on which come to depend, usually the conditions of assembly of members complementary to the locking fitting. In fact, during this assembly, the barrel is removed and cannot perform the blocking function which is normally assigned to it, so that very frequent use was made of temporary blocking pads which ensured relative immobility of the rods. compared to the headrest. As such studs are provided for breaking, a first maneuver has the consequence of annihilating

their function.

  Through the present invention, such studs are not only unnecessary, but, moreover, the braking means implemented here remain functional throughout the life of the cremone bolt and thus ensure better

  operation of the latter over time.

  In particular, said braking means 85 are in the form of an elastic blade 86 associated with said

  housing 2 and defined capable of cooperating with an easel 37.

  This elastic blade 86, in collaboration with a support wall 87 extending parallel to the plane of the rods 5, 6 in the trunk 8 of the housing 2, acts in the manner of a clamp in which is defined capable of coming s engage a connecting wall 88 corresponding to the easel 37 and connecting the two

drive branches 45, 46.

  According to another feature of the invention, the cremonebarillet 1 comprises means for indexing the unlocked and / or locked position of the said operating rod or rods 5, 6. Advantageously, these indexing means are defined, with firstly, by a boss 86A which comprises the elastic blade 86 at its end and, secondly, one or more openings 89 and / or cavities in said connecting wall 88 of the bridge 37. Thus, depending on whether the latter occupies the one and / or the other position corresponding to the unlocked and / or locked of said operating rod or rods 5, 6, the boss 86A comes to register in such an opening or cavity 89. It is specified that the two branches of drive 45, 46 of the easels 37, 43 have a length defined in

function of the follower rating 19.

  Advantageously, the trunk 8 of the housing 2 is produced by injection molding in plastic material or in a zinc alloy, this trunk grouping together all the functionalities necessary for positioning and maintaining

  parts of the drive mechanism 3.

  In particular, this box 8 comprises, in particular at its bottom 9: - a socket 90 for receiving the spring 82 corresponding to the elastic return means 71; - The housings 16 for receiving the fixing screws 17; - An elastic tongue 91 corresponding to the defined indexing means 64 capable of cooperating with a toothing 92 corresponding to the complementary indexing means 65 which the latch wheel 56 has at the periphery; - The guide means 27A, more particularly a housing 93 for receiving the spring 28 acting on the pusher 27 corresponding to the elastic return means 25 of the follower 19 in its reference position 26; - A pivot 94 advantageously provided with clipping means 95 and on which the lock wheel 56 can be engaged; - Means for holding and guiding 96 of the reversing wheel 36; the opening 22 for receiving one of the ends of the central hub 21 corresponding to the follower 19; - The means for holding and guiding the easel (s) 37, 38; - And the elastic blade 86 and the support wall 87 defining the braking means 85 provided capable of cooperating

with said easel 37.

  Preferably, the follower 19, the reversing wheel 36 and the latch wheel 56 are themselves obtained as the pusher 17, by injection molding, by

stamping or machining.

  As for the transmission members and in particular the easels 37, 38 or even the control lever 67 through which the follower 19 acts on the latch bolt 4, they are preferably designed by cutting and stamping a

metallic dish.

  The cover 10, which closes the trunk 8 once all the parts of the drive mechanism 3 placed inside of the latter, advantageously comprises means of connection by clipping onto this trunk 8 allowing the latter to be closed. ci in a secure manner, that is to say without a part of the drive mechanism 3 being able to leave the place which has been allocated to it inside this housing 2 before the final fixing takes place, either by screwing ,

  either by riveting the cover 10 on the trunk 8.

  Another particularity of this cremone bolt 1 resides in the fact that the parts making up the mechanism 3 are designed capable of being arranged by stacking in the boot 8 of the housing 2. Advantageously, these parts are indexed in position in the housing, whether in relation to the cover 10 or the trunk 8 constituting the latter or between them. In this regard, the invention also relates to a protocol for

  mounting the drive mechanism 3 in said housing 2.

  Thus, according to this protocol: the spring 81 defining the elastic return means 71 is introduced into the boot 8, more particularly on the socket 90; - In the bottom 9 of this box 8, more particularly the housing 93 is engaged the return spring 28; knowing that in a next step the fitting of the pusher 27 takes place; then, thanks to said indexing means 86A, 89, the upper easel 37 is positioned in the trunk 8 of the housing 2; - Before the lock wheel 56 defined capable of constituting an indexing for mounting the following parts; - followed by the reversing wheel 36; - The follower 19 is then put in place capable of carrying out a final indexing for a self-checking of the correct mounting of said parts of the mechanism 3; - before fitting the lower bridge 38 taking into account that the drive pins 39, 40 through which the reversing wheel 36 cooperates with this bridge 38 and that 37 placed in the initial assembly phase, extend, respectively, from on either side of the plane of this reversing wheel 36; - Then introduced into the trunk 8, more particularly on the pivot 80, the control lever 67 with which is made to cooperate, simultaneously, the end 84 of the spring 82 already positioned in the housing 2; - On this assembly thus positioned comes close the cover 10 through the connecting means for clipping 97; - Fixing screws 99 again securing the cover 10 to the trunk 8 of the housing 2 consolidates and secures the assembly; - In a last step, after hooking the operating rods 5, 6 on the tongues 47, 48 of the drive branches 45, 46 corresponding to the easels 37, 38 and the screwing of the housing 2 on the headrest 7, the following is introduced at through a suitable light in the latter, the tail 66 of the latch bolt 4 in the housing 2 to bring the hooking means 69 that comprises this tail 66 of the latch bolt 4 in cooperation with the hooking means complementary 68 defined by the control lever 67. It is recalled that this introduction of the latch bolt is facilitated

  thanks to the tapered shape of the free end its tail 66.

  The advantages of a cremone bolt 1 according to the invention consist, not only, of a simplified design resulting in a reduction of the functional clearances and, therefore, an increased longevity of its drive mechanism, but, moreover, by very easy adaptability

with different ratings of the follower.

  Indeed, the only parts that change according to this rating are: the trunk 8 and the cover 10 of the housing 2, the easels 37 and 38 and the latch bolt 4, the tail 66

must be of suitable length.

  Finally, as appears from the description which

  precedes, the invention makes it possible to respond to the various drawbacks of the state of the art, namely: * Simplification of the mechanism of the barrel cremone bolt; * Reduction of functional games; * Adaptability to different follower dimensions with replacement of a minimum of parts involved in a variable case volume; * Preservation of a rectilinear headrest whatever this follower rating; * Precision in the races communicated to the maneuvering rods; * Definition of a box with active walls; * Easy assembly and assembly of parts of the mechanism by simple stacking; * Indexing of the parts together or in relation to the walls of the housing, * No assembly of the sub-assembly; * Barrel action on the follower is the rods; * Removal of locking faults; * Respect of a space requirement in correspondence with a reduced section of carpentry profiles, despite the integration of all essential functions; * Postage of temporary blocking means, of the breakable stud type, usually essential before or in progress

installation on a carpentry.

  Although the invention has been described with reference to a particular embodiment, it is understood that it is in no way limited thereto and that it is possible to make various modifications to the forms, materials and combinations of these. various elements without departing from the framework and

the spirit of the invention.

Claims (20)

claims   1. Cremone bolt for door, window or the like comprising, housed in a housing (2) composed of a trunk (8) and a cover (10), a drive mechanism (3) composed of a part, control parts (3A) such as a follower (19) subjected to elastic return means (25) in a reference position (26) and defined capable of acting on a latch bolt (4) and , on the other hand, of transmission parts (3B) provided capable of retransmitting the action of the control parts (3A) at least on an operating rod (5, 6) extending in front above and / or below said casing (2), at the rear of a headrest (7) which is defined capable of being secured to the latter, this cremone bolt also comprising, as control parts (3A) a key barrel passing through said housing (2) for blocking in the locked position at least one or more operating rods (5, 6), characterized in that the housing (2) is subd ivized in two parts (2A, 2B) including one (2A), of substantially constant volume grouping the control parts (3A) of the drive mechanism (3), the other part (2B) of variable volume and interposed between the preceding part (2A) and the headrest (7) of which the housing (2) is made integral, accommodating the transmission parts (3B) and   defining means for guiding the latter.   2. Cremone barrel comprising two operating rods (5, 6) extending above and below said housing (2) and moving in opposition, according to claim 1, characterized in that the follower (19) engages on a reversing wheel (36) engaged with a first bridge (37) connected to a first operating rod (5) extending above the housing (2) and a second bridge (38) engaged with a second operating rod (6) extending in opposite direction, on this reversing wheel (36) being provided capable of acting a locking wheel (56) capable of occupying, under the impulse of the barrel (57), a first position (59) of t 24.L rotation lock of the reversing wheel (36) and a second release position (59A).   3. Cremone barrel according to claim 2, characterized in that in the locking position (59) the latch wheel (56) has a locking tooth (60) provided capable of fitting into a recess (61) of combined form at the level of the reversing wheel (36) so as to offer a stop plane (62) cooperating with a corresponding stop plane (63) at this recess (61) to prevent the reversing wheel ( 36) of   rotate in the unlocking direction.   4. Barrel cremone bolt according to any one of   previous claims, characterized in that the   housing (2), in particular the trunk (9), includes indexing means (64) provided capable of cooperating with complementary indexing means (65) associated with the lock wheel (56) so as to index the positions blocking (59) and   release (59A) of the latter.   5. Barrel cremone bolt according to claim 4, characterized in that the indexing means (64) at the level of the boot (8) corresponding to the housing (2) are defined by an elastic tongue (91) provided capable of cooperating with a toothing (92) corresponding to the complementary indexing means (65) that the lock wheel (56) has at the periphery. 6. Barrel cremone bolt according to any one of   previous claims, characterized in that the   U-bolt (4) comprises a tail (66) inserted into the housing (2) and provided with hooking means (69) provided capable of cooperating with complementary hooking means (68) housed in said housing (2 ) and designed retractably against the action of elastic return means (71) to allow the latching and turning of the latch bolt   (2) for a left or right application of the cremonebarillet (1).   7. Cremone barrel according to claim 6, characterized in that the housing (2) has an opening (70) allowing access, through a control member, such as a screwdriver, to said means of additional attachment (68) to retract the latter against the action of said elastic return means (71).   8. Barrel cremone bolt according to claims 6 or 7,   characterized by the fact that the complementary hooking means (68) are defined by a control lever (67) capable of cooperating with a control finger (24) corresponding to the follower (19), said control lever (67) being provided with a drive pin (76) provided capable of being housed in a cutout (75) formed in the tail (66) of the latch bolt (4) and defining the hooking means (69) of the latter, said control lever (67) comprising, at its end (79) opposite that (77) cooperating with said follower (19), an oblong opening (81) for the passage of a pivot (80) s' extending from the bottom (9) of the boot (8) so as to be able to occupy an active position corresponding to the engagement of the drive pin (76) in the cutout (75) of the tail (66) of the bolt U-turn (4) and a retracted position where this lug (76) is released from said cutout (75).   9. Cremone barrel according to claim 7 or 8, characterized in that the elastic return means (71) acting on said complementary hooking means (68) defined by the control lever (67) also constitute the means elastic return acting on the tail (66) of the latch bolt (4) to bring the latter into position advanced locking.   10. Barrel cremone bolt according to claim 9, characterized in that the elastic return means (71) are defined by a stressed spring (82), one end (83) of which is designed to act on the control lever ( 67) so as to impart thereto a rotation having the effect of pushing the latch bolt (4) into its advanced locking position, the other end (84) of this spring (82) being defined capable of coming s '' press the control lever 26 + (67) so as to impart an axial thrust to it to maintain it in its active position ensuring the cooperation of the additional attachment means (68) which it defines with the attachment means ( 69) corresponding to the tail (66) of said U-bolt (4). 11. Cremonebarillet according to any one of   previous claims, characterized in that it   comprises defined braking means (85) able to maintain the operating rod or rods (5, 6) in a   determined locking and / or unlocking position.   12. Barrel cremone bolt according to claim 11, characterized in that the said braking means (85) are defined by an elastic blade (86) associated with the housing (2) and designed capable of cooperating with an easel (37) connected to an operating rod (5), said elastic blade (86) being provided capable of acting in the manner of a clamp in collaboration with a bearing wall (87) extending parallel to the plane of said rods (5, 6) in the trunk (8) of the housing (2), clamp in which is provided capable of engaging a wall of   link (88) corresponding to said easel (37).   13. Cremone barrel according to any one of   previous claims, characterized in that it   comprises means for indexing (86A, 89) the unlocked and / or locked position of the said rod or rods operation (5, 6).   14. Barrel cremone bolt according to claim II or 12 and claim 13, characterized in that the indexing means (86A, 89) are constituted by said means of braking (85).   15. Cremone barrel according to any one of   previous claims, characterized in that the or   the easels (37, 38) comprise two drive branches (45, 46) each provided with at least one drive tongue (47, 48) defined capable of cooperating with a cutout (49) adjusted as a result of symmetrical to the 27t longitudinal median plane at the level of an operating rod (5, 6).   16. Barrel cremone bolt according to any one of   previous claims, characterized in that the   elastic return means (25) cooperating with the follower (19) are defined by a pusher (27) subjected to the action of a return spring (28) and provided capable, in cooperation with drive fingers (29 , 30) associated with said follower (19), to exert on the latter a return torque in said position reference (26).   17. Barrel cremone bolt according to claim 16, characterized in that the pusher (27), under the action of the spring (28), is defined capable of exerting its thrust in a radial direction to the follower (19), while the drive fingers (29, 30) with which it cooperates are arranged symmetrically on either side of this radial direction (31) at a determined distance from the axis (32) of said follower (19). 18. Barrel cremone bolt according to claim 17, characterized in that the pusher (27) comprises, opposite the drive fingers (29, 30), inclined planes (33, 34) giving it a defined V-structure able to guarantee a substantially constant compression of the spring (28) under the action of said drive fingers (29, 30) during rotation of the follower (19) starting from said position of reference (26).   19. Barrel cremone bolt according to the preceding claims   taken as a whole, characterized in that the supply (8) of the housing (2) is produced by injection molding of synthetic material or of zinc alloy and comprising: - a bush (90) for receiving the spring (82 ) corresponding to the elastic return means (71); - Housing (16) for receiving fixing screws (17) to the headrest (7); an elastic tongue (91) corresponding to the indexing means (64) defined able to cooperate with a toothing 28 2847288   (92) corresponding to the complementary indexing means (65) that the lock wheel (56) has at the periphery; - A housing (13) for receiving the spring (28) acting on the pusher (27) corresponding to the elastic return means (25) of the follower (19) in its reference position (26); - A pivot (94) provided with clipping means (95) on which is provided capable of engaging the lock wheel (56); - means for holding and guiding (96) the reversing wheel (36); - An opening for receiving one of the ends of a central hub (21) corresponding to the follower (19); - the means for guiding the easel (s) (37, 38); - The elastic blade (86) and the bearing wall (87) defining the braking means (85) provided capable of cooperate with an easel (37).   20. Barrel cremone bolt according to any one of   previous claims, characterized in that the   control (3A) and transmission (3B) parts of the drive mechanism (3) are designed to be arranged by   stacking in the trunk (8) of the housing (2).