Control device for a cremone bolt on a tilt-and-turn window sash

Abstract

Control device (1, 1') for a cremone bolt locking / unlocking mechanism of a tilt-and-turn leaf, comprising a base (10) and a rotating operating member (3, 3'), and a stepped pinion (11) having one end (110) housed in said base adapted to engage with the actuating shaft (5) of a cremone bolt, and a first wheel (112) and a second wheel (113) which are at least partially toothed, and two sectors (12, 13) comprising a first toothed part (121, 131) and a second toothed part (131, 132), the respective first toothed part (121) of one of the sectors (12) being able to engage with the teeth of said first wheel (112) to drive the stepped pinion in rotation in conjunction with a rotation of the operating member,and the respective first toothed portion (131) of the other sector (13) being able to engage with the teeth of said second wheel (113) to drive the stepped pinion in rotation, which is integral with a rotation of the operating member, and a selector member (20, 20') comprising a toothed shaft (22, 22') meshing with the second toothed portions (122, 132) of the two sectors (12, 13), to drive the two sectors (12, 13) in displacement and selectively engage the first toothed portion of one of the sectors with one of the wheels of the stepped pinion and disengage the first toothed portion of the other sector with the other wheel of the stepped pinion, for a rotation of the operating member along an angular stroke () of amplitude strictly less than 90 degrees. Figure to be published with the abbreviation: Fig. 2B,

Description

Title of the invention: Device for controlling a cremone bolt of a tilt-and-turn leaf

[0001] The invention relates to the field of tilt-and-turn joinery, in particular that of windows.

[0002] Particularly prized for its practical side, this type of joinery includes at least one tilt-and-turn leaf, i.e. one with two possible opening modes, thanks to a specific fitting system allowing the leaf to be positioned in relation to the frame along two different axes: - opening in strike mode, or so-called “French style”, in which the leaf can be opened completely by rotation around a vertical axis, - opening in ventilation mode, whereby the leaf can only be half-open, most often by a mechanism whereby the leaf pivots around a horizontal axis to open obliquely, generally towards the inside of the room containing the woodwork.

[0003] It is conventionally known in the field of strike openings to use control devices for acting on the locking and unlocking of cremone-type fittings, embedded in the upright of an opening, such devices comprising a rotating operating member. This operating member acts by means of an actuating shaft, generally a rod with a square section called an "actuating square", which is inserted into the cremone bolt follower, a through-hole and generally with a square section, so as to transform the rotational movement of said operating member into a translational movement of the locking / unlocking member on itself along an upright of the opening. The operating member is generally surface-mounted on an upright of the opening, so that its rotation is carried out by driving the actuating shaft mounted perpendicular to the plane of the opening. Typically, a 90-degree angular movement of the operating device allows the espagnolette to be operated a quarter turn, to unlock the joinery leaf by turning in one direction and to lock it by turning the handle in the opposite direction.

[0004] In the case of a tilt-and-turn leaf, the transition from the opening position in strike mode to the position in ventilation mode is done by means of the operating member acting on the actuating shaft of the cremone bolt, generally according to a configuration known per se in which by turning the operating member 90 degrees, the leaf pivots to open in strike mode, and by turning the operating member maneuver of 90 degrees more, so in total 180 degrees, the leaf tilts to open halfway in ventilation mode.

[0005] This mode of use imposes an ergonomic constraint on the user. Indeed, maneuvering the operating member through 180 degrees requires twisting the wrist and forearm which can be unpleasant, even painful for some people. Most of the time, the gesture is then broken down into two stages, the user changing his grip on the operating member during manipulation.

[0006] In order to overcome this constraint, some hardware manufacturers offer a variant on the market in their hardware, consisting of favoring the ventilation mode position in the first position, the operating member being turned 90 degrees. The complete opening of the leaf, which is then done by turning the operating member 180 degrees (in strike mode), is often linked to the need to open or close hinged shutters, this type of solution can then be suitable for joinery associated with roller shutters. However, not all joinery, particularly in renovation, is necessarily associated with roller shutters. In addition, this solution requires manufacturers of industrial joinery to be able to manage both types of hardware. In addition, although this solution makes the use of a tilt-and-turn system more pragmatic, the problem of ergonomic use remains unresolved.

[0007] There therefore remains a need to improve the ergonomics of use of the control device of a tilt-and-turn system.

[0008] The invention aims to resolve the drawbacks of the prior art, while proposing a control device compatible with conventional cremones and conventional mechanisms adapted to the tilt-and-turn system. It aims to propose a control device for a locking / unlocking system for an opening using a cremone bolt, and more particularly applying to a tilt-and-turn opening.

[0009] To this end, the invention provides a device for controlling a cremone bolt locking / unlocking mechanism of a tilt-and-turn leaf capable of rotating the actuating shaft of the cremone bolt to cause the locking / unlocking mechanism to switch reversibly from a position in striking opening mode to a position in ventilation opening mode of the leaf. According to the invention, said control device comprises a sole defining a mean plane and a movable operating member in rotation around a pivot axis perpendicular to said mean plane of the sole. Said control device further comprises: - a stepped pinion of axial direction defining a transverse direction, comprising an end housed in said sole capable of being secured to the actuating shaft of a cremone bolt to be driven in rotation, and a first wheel and a second wheel which are at least partially toothed, - two sectors, integral with the operating member, each having a face comprising a first notched part and a second notched part, one of the sectors being associated with the striking opening mode and the other sector being associated with the ventilation opening mode, the respective first notched part of one of the sectors being able to engage with the teeth of the first wheel of the stepped pinion to rotate the stepped pinion integrally with a rotation of the operating member, and the respective first notched part of the other sector being able to engage with the teeth of the second wheel of the stepped pinion to rotate the stepped pinion integrally with a rotation of the operating member, and - a selector member, comprising a movable handle capable of rotating a toothed shaft meshing with the respective second notched parts of the two sectors.The rotation of the toothed axis makes it possible to drive the two sectors in substantially transverse movement in opposite directions to selectively engage the first notched part of one of the sectors with one of the wheels of the stepped pinion and disengage the first notched part of the other sector with the other wheel of the stepped pinion, in order to switch from one mode of opening the leaf to the other mode for a rotation of the operating member following an angular travel of amplitude strictly less than 90 degrees.

[0010] The invention is remarkable for the presence of a selector member which cooperates with notched sectors cooperating with a stepped pinion, allowing a user to opt for one or other of the striking opening and ventilation opening modes of the joinery from the same angular operating stroke of the operating member, in this case an angular stroke of an amplitude strictly less than 90 degrees, which avoids unpleasant, or even painful, manipulations for a user of the operating member between these opening modes.

[0011] The stepped pinion forms with the toothed sectors two pinion-rack connections created selectively by the meshing connection of the selector and the toothed sectors.

[0012] The device makes it possible to rotate the stepped pinion through 90 degrees for a first rotation of the operating member in one direction and to rotate the pinion through a further 90 degrees for a rotation of the operating member in the opposite direction, which makes it possible to rotate the shaft of the cremone bolt through 90 degrees for a first opening mode and through another 90 degrees, therefore 180 degrees in total, for the other opening mode, the amplitude of rotation of the operating member remaining limited. The pivot axis of the operating member is oriented in a direction parallel to the axial direction of the stepped pinion, or in other words to the transverse direction.

[0013] Preferably the amplitude of the angular travel of the operating member is less than 45 degrees, and more preferably it is approximately 20 degrees.

[0014] Preferably, said at least partially toothed wheels of the stepped pinion are wheels of different diameters. Preferably they are arranged adjacent in order to provide a compact device.

[0015] According to a particular embodiment of the invention, the first notched part of the sector associated with the striking opening mode is capable of selectively meshing with the at least partially toothed wheel having the largest diameter, and the first notched part of the sector associated with the ventilation opening mode is capable of selectively meshing with the at least partially toothed wheel having the smallest diameter.

[0016] According to a preferred embodiment of the invention, the notched sectors are each constituted by an elongated part, one face of which carries the notches of the first notched part and of the second notched part, the notches of the second notched part being arranged at a respective longitudinal end of the sector and oriented in a direction substantially perpendicular to that of the notches of the first notched part. Said sectors are arranged in their generally longitudinal direction so that their respective first notched parts are on either side of the stepped pinion. Said elongated part constituting a sector has at least one curvature.

[0017] According to a preferred embodiment of the invention, the sector parts comprising the respective first notched parts of said notched sectors have a curvature, one concave and the other convex respectively to one of the sectors relative to the stepped pinion, in other words respectively to the face of the sector facing the stepped pinion. In particular, these curvatures are of large radius, the parts constituting the sectors being relatively flat. In particular, the respective second notched parts of the sectors have respective curvatures which are oriented towards the toothed axis of the selector.

[0018] Advantageously, the sectors have different moduli. In particular, one of the sectors has a modulus equal to 1 and the other sector has a modulus equal to 0.5.

[0019] According to a preferred embodiment of the invention, said device comprises means for preventing false operation of the selector member. In particular, these means are stops carried by the stepped pinion, and preferably these stops are each in the form of a solid part (without teeth) located on the respective periphery of the partially toothed wheels of the stepped pinion.

[0020] According to a particular embodiment, the operating member comprises a hollow body covering the front face of the sole. Preferably, it comprises a gripping element of elongated shape extending from said body. In particular, said hollow body houses the sectors and at least partially the toothed axis of the selector member. In particular, the sectors and the part of the toothed axis meshing with the sectors are housed in the body of the operating member.

[0021] Preferably, the lever of the selector member is located on the operating member, in particular it is housed in an external notch on the operating member.

[0022] In particular, said stepped pinion is movable relative to the sole according to a pivot connection guided by one end of the stepped pinion in a recess in the sole.

[0023] The invention also relates to joinery comprising at least one tilt-and-turn leaf, in particular a window, equipped with a locking / unlocking mechanism with a cremone bolt embedded in an upright of the leaf, said upright comprising a device for controlling said mechanism as described above, the base of said device being fixed to said upright, and said cremone bolt actuating shaft being mounted transversely to said upright and such that one of its ends is inserted into one end of the stepped pinion which said device comprises and its other end being inserted into the follower (actuating orifice) of the cremone bolt.

[0024] In particular, the sole defines a mean plane parallel to the mean plane defined by the front face of the leaf to which the rear face of the sole is fixed.

[0025] Other features and advantages of the invention will emerge from reading the description given below of particular embodiments of the invention, given for informational but non-limiting purposes, with reference to the appended figures and for which:

[0026] [Fig. 1A] is a perspective view of a cremone control device for a joinery comprising a tilt-and-turn leaf according to one embodiment of the invention, the device being mounted on an upright of the leaf, in locked closing mode, the operating member being “straight” (at 0 degrees), the joinery being locked.

[0027] [Fig. 1B] is a perspective view of the control device of [Fig. 1A], unlocked in striking mode, by rotating the operating member.

[0028] [Fig. IC] is a perspective view of the control device of [Fig. IB], the device selector being switched from striking mode to aeration mode.

[0029] [Fig.lD] is a perspective view of the control device of [Fig.lC], unlocked in ventilation mode, the operating member being returned to the straight position.

[0030] [Fig.2A] is a perspective and partially cutaway view of the cremone control device, in correspondence with [Fig.1B], unlocked for the leaf open in strike mode.

[0031] [Fig.2B] is a perspective and partially cutaway view of the cremone control device, in correspondence with [Fig.1C], the device selector being switched from striking mode to ventilation mode.

[0032] [Fig.3A] is a sectional view in the XZ plane and at the level of the “rear” stage of the stepped pinion of the cremone control device of a tilt-and-turn leaf, in locked closing mode, in correspondence with [Fig.1A].

[0033] [Fig.3B] is a sectional view in the XZ plane and at the level of the “rear” stage of the stepped pinion of the cremone control device, in correspondence with figures 1B and 2A, unlocked in striking mode, by rotational maneuver of the maneuvering member.

[0034] [Fig.3C] is a sectional view in the XZ plane and at the level of the “front” stage of the stepped pinion of the cremone control device, in correspondence with figures IC and 2B, the selector of the device being switched from striking mode to ventilation mode.

[0035] [Fig.3D] is a sectional view in the XZ plane and at the level of the “front” stage of the stepped pinion of the cremone control device, in correspondence with [Fig.1D], unlocked in ventilation mode, the operating member being returned to the straight position.

[0036] [Fig.4] represents a partial perspective and sectional view in the YZ plane of the cremone control device for a tilt-and-turn leaf shown in the previous figures.

[0037] [Fig.5] represents a perspective view of one of the notched sectors, from its face notched, of the cremone control device shown in the previous figures.

[0038] [Fig.6] represents a partial perspective view of the other of the notched sectors, from its notched face, of the cremone control device shown in the previous figures.

[0039] [Fig.7A] is a partial perspective view of a cremone control device for a tilt-and-turn leaf according to the invention comprising a selector according to an alternative embodiment.

[0040] [Fig.7B] is a perspective view of the control device according to [Fig.7A] with a partial sectional view in the YZ plane of the selector.

[0041] The orientations expressed in the description of the figures are given with reference to an orthonormal trihedron X, Y, Z, relative to a tilt-and-turn leaf of a vertically installed joinery, the control device being installed on the front face of an upright of the leaf, and in which X represents the longitudinal direction, Y represents the transverse direction oriented from front to rear, and Z represents the vertical direction oriented towards the top of the leaf. The direction of the Y axis also corresponds to the axial direction of the actuating shaft of the cremone bolt embedded in the leaf upright carrying the control device of the invention, said Y axis being transverse to said leaf upright.

[0042] In the present description, unless otherwise specified, the terms front, rear, upper, lower, refer to the directions of the leaf or of the device installed on the leaf upright, the front being oriented towards the face of the upright on which is mounted the control device, in particular the sole and the operating member, the rear is oriented opposite towards the other face of the upright.

[0043] Identical references or those augmented by the acronym prime may be used from one figure to another to designate identical or similar elements.

[0044] In the remainder of the description, the ventilation opening mode may be indicated by the abbreviation “OB mode” (OB for “tilting opening”), and the striking opening mode may be indicated by the abbreviation “OF mode” (OF for “striking opening”).

[0045] All of Figures 1A to 1D, 2A-2B and 3A to 3D illustrate all or part of a control device 1 for a cremone bolt of a tilt-and-turn leaf according to an embodiment of the invention, all of Figures 1A to 1D showing it mounted on an upright M of the leaf. Figures 4 to 6 show details of the device.

[0046] The control device 1 comprises a sole 10 fixed by its rear face to the upright M of the leaf. It also comprises the movable operating member 3, comprising a body 300 which covers the front face of the sole 10, and an elongated gripping tab 30 allowing the device to be operated by a user. It further comprises a selector member 20 for the opening mode of the leaf, the lever 21 of which appears on one side of the device.

[0047] The control device 1 also comprises internal members comprising two notched sectors 12, 13, generally longitudinal, included in the body 300 of the operating member 3, and a stepped pinion 11 whose axial direction is oriented transversely (direction Y), housed partly in the sole 10, the sectors 12, 13 and the pinion 11 being arranged to cooperate with each other according to pinion-rack connections, one of the sectors 12 being associated with the striking opening mode and the other sector 13 being associated with the ventilation opening mode.

[0048] Each sector 12, 13 comprises a face comprising a first notched part 121, 131 whose notches are configured to mesh selectively with one of the stages of the stepped pinion 11, the selector member 20 allowing the selective gears.

[0049] The stepped pinion 11 in fact comprises two toothed wheels 112, 113 which are arranged in stages, adjacent to each other, on a common axis of rotation oriented transversely (Y direction), in other words front-rear, and which have different diameters. The larger diameter gear wheel 112 forms the rear stage, and the other, smaller gear wheel 113 forms the front stage of the pinion 11. The first notched portion 121 of the sector 12 associated with the striking opening mode is capable of selectively meshing with the larger gear wheel 112, and the first notched portion 131 of the sector 13 associated with the ventilation opening mode is capable of selectively meshing with the smaller wheel 113. The wheels of the pinion can selectively mesh with the stepped pinion 11 to rotate said pinion 90 degrees a first time and 90 degrees a second time according to the desired opening mode, as explained in detail below.

[0050] Each sector 12, 13 is an elongated part which extends generally longitudinally in the hollow body 300 of the operating member 3, however these sectors have respective curvatures 1200, 1300 which are different in their parts comprising the first notched part ([Fig.5] and [Fig.6]). The sector 12 associated with the striking opening mode is such that the first notched part 121 of its notched face 120 has a concave shape, curved part 1200, relative to the pinion 11 ([Fig.5], [Fig.3D]). The sector 13 associated with the OB mode is such that the first notched part 131 of its notched face 130 has a convex shape relative to the stepped pinion, the curved part 1300 being of curvature turned towards the stepped pinion 11 ([Fig.6], [Fig.3D]). The notches of the respective first notched part 121, 131 of each sector have different sizes and shapes from one sector to another. The sectors 12, 13 have different modules.

[0051] With reference to [Fig.4] in particular, the stepped pinion 11 has two opposite ends, a rear end 110 and a free front end 111. It is rotatable by pivot connection in a recess with the sole. Its free cylindrical front end 111 arranged in a housing, serves to guide it when it is rotated by the pinion 11 - rack (sectors) 12, 13 connections under the action of the operating member 3. Its rear end 110 is configured to secure the actuating shaft 5 of the espagnolette therein in order to drive the latter 5 in rotation when the stepped pinion itself 11 is rotated. This rear end 110 is a hollow cylinder internally receiving the actuating shaft 5 which is a cylinder of square section, also usually called a “scout square”. The other end of this actuating shaft 5 is inserted into the cremone bolt (square-shaped orifice, not shown in the figures).

[0052] The respective notched face 120, 130 of each sector 12, 13 further comprises a second notched part 122, 132 which cooperate with the selector member 20. This selector member 21, 22 makes it possible to activate or deactivate the gearing of one and / or the other of said two sectors 11, 12 and of the stepped pinion 11 in order to switch from one mode of opening the leaf to the other mode for a rotation of the operating member 3 following an angular travel Q of amplitude of 20 degrees according to the example, following an operation detailed later. This selector member 20 comprises a rotating lever 21 to which a toothed shaft 22 is secured, the lever 21 being mounted at one end of said toothed shaft 22. When the selector 20 is not activated, its lever 21 is housed in a notch 310 of suitable shape and hollowed out on the external face of the operating member 3. Said toothed shaft 22 is located between the two sectors 12, 13 and meshes with said two second notched parts 122, 131 respective of the two sectors, and rotates integrally with the rotation of the lever 21 when the latter is manipulated in rotation by a user. The respective notches of said two second notched parts 122, 132 are oriented like those of said toothed axis 22, and perpendicular to the orientation of the notches of the first notched parts 121, 131 respective of the sectors 12, 13, so as to differentially move the sectors back and forward selectively relative to the toothed wheels 111, 112 of the stepped pinion 1.

[0053] Furthermore, the selector member must only be activated when the operating member 3 is in the rotated position, following an angular travel of 20 degrees according to the example. To avoid false operation of the selector 20, stops 1120, 1130 are carried on the stepped pinion 11 ([Fig.4]). These stops are in the form of a solid part (without teeth), on the periphery of each toothed wheel of the stepped pinion.

[0054] Figures 1A, 1B, 2A and 3A, 3B describe the operation of the control device 1 for opening in strike mode. The lever 21 of the selector 20 is in the folded position, in other words in the inactive position, a position associated with the strike opening mode, and the sector 12 associated with the strike opening mode is at the level of the largest wheel 112 of the stepped pinion 11. Starting from the locked position ([Fig. 1A]), the gripping tab 30 of the device is “at rest”, in a straight position following the upright of the leaf (angular amplitude at zero degrees relative to the sole 10). When a user maneuvers the maneuvering member 3 over an angular travel and amplitude of 20 degrees ([Fig. 1B], [Fig. 2A], [Fig. 3B] - arrow F), the notched sector 12 dedicated to the strike opening mode (arrow DF in Fig. 2, [Fig.3B]) and the larger wheel 112 of the stepped pinion 11 mesh, which will cause the stepped pinion 11 to rotate through an angular amplitude of 90 degrees (arrow RF in [Fig.2A], [Fig.3B]).

[0055] With reference to [Fig.4], said stepped pinion 11, containing, at its rear end 110, one end of the actuating square 5 of the cremone bolt, integrally drives said square 5 by a quarter turn (90 degrees) so that the locking / unlocking mechanism of the cremone bolt moves into the unlocked position, which can thus make it possible to open the leaf of the joinery in striking mode.

[0056] At this stage, if the user wishes to continue in ventilation opening mode, he actuates the selector member 20. Figures 1C, 1D, 2B, 3C and 3D describe the mode of action of the control device 1 for opening in ventilation mode.

[0057] For this purpose, the user operates the lever 21 of the selector member by raising it by an angle 0 of predetermined amplitude depending on the physical characteristics of the different components cooperating with each other (number and size of the notches of the stepped pinion, diameter of the toothed wheels of the pinion, number and size of the notches of the sectors, lengths of the sectors). According to the example, said angle 0 has an amplitude of 113 degrees. The toothed axis 22 of the selector 20 thus actuated and the respective second notched parts 122, 132 of the two notched sectors 12, 13 mesh. The selector member will drive the two notched sectors in opposite directions, substantially transversely, by means of a pinion-rack type connection relating to the stepped pinion 11 and to the two sectors 12, 13 located on either side of said stepped pinion 11, the selector having a toothed axis 22 common to the two pinion 11-rack connections (sectors 12, 13).

[0058] With respect to the stepped pinion 11, the rotation of the toothed axis 22 of the selector between the two sectors 12, 13 causes the notched sector 12 dedicated to the OF mode to “advance”, or in other words “raise” said sector 12 to the front of the large toothed wheel 112, which disengages the first notched part of said sector 12 from the large toothed wheel 112 of the stepped pinion 11, causing it to “disengage”, while this rotation causes the notched sector 13 dedicated to the OB mode to “move back” to bring it to the level of the small toothed wheel 113 of said stepped pinion, causing it to “engage”. The first notched part 131 of the sector 13 dedicated to the OB mode will thus engage on the teeth of the small toothed wheel 113 of the stepped pinion 11, specific to the operation of said OB mode.

[0059] When the lever 21 of the selector member 20 is thus completely raised, the user turns the operating member 3, by grasping the gripping tab 30, following an angular travel a with an amplitude of 20 degrees but this time in the opposite direction (dotted arrow B in [Fig.lC], [Fig.2B], [Fig.3C]) to that applied during opening in striking mode, that is to say that the gripping tab 30 of the operating member 3 is returned to the straight “zero degree” position ([Fig.lD], [Fig.3D]). When the user turned the operating member 3, the notched sector 13 dedicated to the OB mode was moved (arrow DB in [Fig.3D]) and by meshing its notches with the teeth of the small toothed wheel 113 driven in rotation (arrow RB - [Fig.3D]), the stepped pinion 11 rotates by an additional 90 degrees. Since the initial unlocking, the actuating square 5 of the cremone bolt has therefore traveled an angular travel with a total amplitude of 180 degrees (90°+90°), the tilt-and-turn leaf can then be opened in “ventilation” opening mode.

[0060] To return the leaf to the locked closing position (Fig.lA, Fig.3A), starting from its opening in OB mode (Fig.lD, Fig.3D), initially the user turns the gripping tab 30 of the operating member 3, which is at zero degrees, to the right by an angular travel ( “) having an amplitude of 20 degrees according to the example, then must return to striking mode. To do this, the lever 21 of the selector 20 is returned to its rest position by rotation through an angle “- 0” so that the sector 13 dedicated to the OB mode disengages from the small wheel 113 of the stepped pinion, while the sector 12 dedicated to the striking mode 12 engages on the stepped pinion, meshing with the large toothed wheel 112, so that the device returns to a configuration similar to that illustrated in Fig.3B. Then the user turns the gripping tab 30 of the operating member 3 in the opposite direction by an angular stroke a having an amplitude of 20 degrees to bring it back to zero degrees, so that the device returns to the configuration illustrated in [Fig.1A] and [Fig.3A].

[0061] The choice of an angular travel of the gripping tab 30 of the operating member limited to an amplitude of 20 degrees makes it possible to install the control device on a leaf having a (profiled) upright of relatively small width. The sole 10 of the device has a width of 30 millimeters. The dimensions of the notches of the respective first notched parts 121, 131 of the two sectors 12, 13 are adapted in particular to the amplitude of the angular travel of the gripping tab 30 of the operating member. The sectors have different modules. According to the example of the angular travel of the gripping tab with an amplitude of 20 degrees, the module of the sector 12 associated with the OF mode is 1 while the module of the sector 13 associated with the OB mode is 0.5.

[0062] Furthermore, according to the example, the center distance of the sole, in other words the distance in the vertical direction (Z) between the two fixing points on the leaf upright, is 43 mm, which is a common center distance.

[0063] [Fig.7A] and [Fig.7B] are views of another exemplary embodiment of the selector member of a control device according to the invention. The selector member 20' comprises a toothed shaft 22' identical to the shaft 22 of the selector described previously, and a lever 21' movable in translation, from top to bottom (double arrow SB-SF), comprising a through orifice 210', of oblong shape, provided with teeth 2100' on its external perimeter. Said toothed shaft 22' is engaged in this toothed orifice 210', and is thus driven by gearing with these teeth when manipulating the lever 21' from bottom to top, in order to also mesh with the second notched parts of the sectors 12, 13, and ultimately to selectively produce one of the stepped pinion 11-rack 12, 13 connections to switch to OB mode or return to striking mode similarly to the description of the previous example.

[0064] The arrangement of the mechanism allowing the leaf to open in strike mode and to switch to opening mode in ventilation mode is not described in detail because it does not relate to the subject of the invention strictly speaking. Any known mechanism, operating with a cremone controlled by an operating member for which the opening mode in strike mode is at 90 degrees and the opening mode in ventilation mode is at 180 degrees, is suitable.

[0065] The device according to the invention has been described in the context of a cremone bolt operating with the gripping tab 30 of the operating member for which the mode in strike is at 90 degrees and the “ventilation” mode is at 180 degrees, as indicated in the paragraph above, however the device may also be suitable for a known mechanism operating with a cremone controlled by a device having a rotating operating member for which the “ventilation” mode is at 90 degrees and the strike mode is at 180 degrees.

[0066] The invention thus proposes a device for controlling a espagnolette of a tilt-and-turn joinery allowing a leaf to move from an opening position in striking mode to an opening position in “ventilation” mode by only manipulating the rotating operating member over an angular travel strictly less than 90 degrees, in particular of the order of 20 degrees, thanks to a device comprising a stepped pinion configured to contain one end of the actuating shaft of the espagnolette and two notched sectors, mechanically “engageable / disengageable” via a selector, whatever the opening configuration in striking mode or in ventilation mode. The control device according to the invention is thus compatible on the one hand with any espagnolette on the market operating according to the two OF / OB opening modes, and on the other hand with any existing tilt-and-turn joinery allowing the replacement of the control device during renovation (known as “retrofit”).

[0067] The invention can be applied to any joinery comprising one or more leaves, including at least one tilt-and-turn leaf. The control device according to the invention is compatible with the conventional configurations of a casement opening joinery, particularly in renovation, which allows aesthetic harmony of the operating members of the joinery, for example of the same building, whatever the type of casement or tilt-and-turn joinery.

Claims

1. Claims Control device (1, 1') for a locking / unlocking mechanism with a cremone bolt for a tilt-and-turn leaf, capable of rotating the actuating shaft of the cremone bolt to cause the locking / unlocking mechanism to switch reversibly from a position in striking opening mode to a position in ventilation opening mode of the leaf, said control device comprising a base plate (10) defining a mid-plane and an operating member (3, 3') movable in rotation about a pivot axis perpendicular to said mid-plane of the base plate, and said device further comprising: - a stepped pinion (11) of axial direction defining a transverse direction (Y), comprising an end (110) housed in said sole capable of being secured to the actuating shaft (5) of a cremone bolt to be driven in rotation, and a first wheel (112) and a second wheel (113) which are at least partially toothed, - two sectors (12, 13), secured to the operating member (3, 3'), each having a face (120, 130) comprising a first notched part (121, 131) and a second notched part (122, 132), one of the sectors (12) being associated with the striking opening mode and the other sector (13) being associated with the ventilation opening mode, the respective first notched part (121) of one of the sectors (12) being capable of engaging with the teeth of the first wheel (112) of the pinion stepped to rotate the stepped pinion in solidarity with a rotation of the operating member,and the respective first notched part (131) of the other sector (13) being able to engage with the teeth of the second wheel (113) of the stepped pinion to drive the stepped pinion in rotation integrally with a rotation of the operating member, and, - a selector member (20, 20') comprising a movable lever (21, 21') capable of rotating a toothed shaft (22, 22') meshing with the two respective second notched parts (122, 132) of the two sectors (12, 13), the rotation of the toothed shaft (22, 22') making it possible to drive the two sectors (12, 13) in substantially transverse displacement in opposite directions to selectively engage the first notched part of one of the sectors with one of the wheels of the stepped pinion and disengage the first notched part of the other sector with the other wheel of the stepped pinion, in order to switch from one mode of opening the leaf to the other mode for a rotation of the operating member following an angular travel (ct) of amplitude strictly less than 90 degrees.

2. Control device according to claim 1, characterized in that the amplitude of the angular travel of the operating member (3) is less than 45 degrees.

3. Control device according to claim 2, characterized in that the amplitude of the angular travel of the operating member (3) is approximately 20 degrees.

4. Control device according to any one of claims 1 to 3, characterized in that the at least partially toothed wheels (112, 113) of the stepped pinion (11) are wheels of different diameters.

5. Control device according to claim 4, characterized in that the first notched part (121) of the sector (12) associated with the striking opening mode is capable of selectively meshing with the largest toothed wheel (112), and the first notched part (131) of the sector (13) associated with the ventilation opening mode is capable of selectively meshing with the smallest wheel (113).

6. Control device according to any one of claims 1 to 5, characterized in that the notched sectors (12, 13) are each constituted by an elongated part, one face (120, 130) of which carries the notches of the first notched part (121, 131) and of the second notched part (122, 132), the notches of the second notched part (122, 132) being arranged at a respective longitudinal end of the sector and oriented in a direction substantially perpendicular to that of the notches of the first notched part (121, 131).

7. Control device according to any one of claims 1 to 6, characterized in that the sector parts comprising the respective first notched parts (121, 131) of said notched sectors (12, 13) have a curvature (1200, 1300), one concave (1200) and the other convex (1300) respectively to one of the sectors relative to the stepped pinion (11).

8. Control device according to any one of claims 1 to 7, characterized in that it comprises anti-false maneuver means (1120, 1130) of the selector member (20).

9. Control device according to claim 8, characterized in that said anti-false maneuver means of the selector member are stops (1120, 1130) carried by the stepped pinion (11), and preferably these stops are each in the form of a solid part located on the respective periphery of the wheels of the stepped pinion.

10. Control device according to any one of claims 1 to 9, characterized in that the operating member (3, 3') comprises a hollow body (300, 300') covering the front face of the sole (10), and in that said body houses said notched sectors (11, 12) and at least partially the toothed axis (22, 22') of the selector member (20, 20'), and preferably in that said operating member comprises an elongated gripping element (30, 30') extending from said body (300, 300').

11. Joinery comprising at least one tilt-and-turn leaf, equipped with a locking / unlocking mechanism with a cremone bolt embedded in an upright (M) of the leaf, characterized in that it is equipped with a control device (1, 1') for said mechanism according to any one of claims 1 to 10, the base (10) of said device being fixed to the upright (M) of the leaf, and said cremone bolt actuating shaft (5) being mounted transversely to said upright and such that one of its ends is inserted into one end (110) of the stepped pinion that said device comprises and its other end is inserted into the actuating hole of the cremone bolt.