Handle assembly for opening leaves of the window or door type

A handle assembly, including at least: a first handle including at least one recess and a square spindle configured to be received at least partially within the recess of the first handle, in an initial configuration, the first handle is configured to slide freely along the longitudinal axis of the square spindle over a given distance, the first handle is configured to pass from the initial position to a securing configuration in which the first handle is immobilized in translation and in at least one direction of rotation with respect to the square spindle, by at least one displacement in rotation of the first handle about the longitudinal axis of the square spindle through an angle strictly less than 360°.

BACKGROUND

The invention relates to the technical field of handles for opening leaves of a building or dwelling. More particularly, the invention relates to the rapid mounting of at least one handle on an opening leaf mechanism of the window, door, French door type.

Document DE 949 275 C describes a fastening for a square spindle.

As a general rule, opening leaves of the window, door or French door type are marketed and delivered separately from their handles for reasons of storage, and particularly of stacking of the opening leaves, but also to allow customization of the opening leaves by means of the style of the handles chosen.

Several known types of handles exist, and in particular: levers on a backplate which are in the form of a plate shaped to be placed flat against a portion of the door and a handle called a lever, generally in the shape of an L, or knobs extending in a plane substantially perpendicular to the plate; and levers on a rose which are in the form of a lever around which a disk, called a rose, is arranged.

Regardless of the type of handle, the latter are conventionally intended to be arranged on an opening leaf by means of a square spindle itself mounted in a follower intended to actuate the latch or the locking mechanism of the opening leaf when it is rotated. The square spindle is a rod, generally metal, making it possible to pivot the handle with respect to the opening leaf. The square spindle can either be pass-through in the case of a handle set i.e. the assembly of two opposite handles on either side of an opening leaf or blind in the case of an assembly of a handle on a single side of the opening leaf. Once the handle or handles are fitted on the square spindle, they must be fastened so that they do not come away from the opening leaf when they are used.

Several types of assembly of the handle on the opening leaf are known, either the lever is fastened to the square spindle by a pin or a screw; or the lever is integral with the plate or the rose and is secured to the opening leaf by screwing, in this case the square spindle remains free in the levers and only ensures the operation of driving in rotation and not holding firm under traction, or the assembly results from a combination of the first types mentioned above.

Generally, the handles are fastened by means of the rose or by means of the plate directly onto the opening leaf by a pin system and/or by screwing. These conventional fastening systems require tools, leaving marks on the opening leaf in the case of removal and the fastening operation is not quick or simple in itself. Moreover, to assemble handles on an opening leaf, it is necessary to take into account the thickness of the opening leaf, the position of the intended location for the assembly of the handle and of the locking mechanism of the opening leaf. All these assembly and fastening constraints prevent rapid and easily assembly of handles on any opening leaf.

Several inventions propose systems for fastening or assembling a handle on the opening leaf called quick or simplified systems, taking into account for example the variation in the thickness of the opening leaf.

For example, from document EP2480739 B1 filed by URFIC-Industria de Ferragens S. A. an assembly mechanism is known for a handle set comprising two handles intended to be mounted on either side of a door of a predetermined thickness. These two handles are connected to one another via a square spindle also connecting a locking mechanism of the door to said two handles. The handle set described is a rose handle set which can also be applied to plate handle sets. The square spindle has an adjustable connector produced in the form of a rack. The cover rose or plate is connected to an adjustment device for adapting the position of the rose or the plate to the thickness of the door. The adjustment device comprises a coupling with a magnet or a threading for fastening the adjustment device on the locking chamber, an outer part intended to be fastened on the rose or the plate and an inner part with the magnet, the outer and inner parts being connected to one another in an adaptable manner by an intermediary. In addition, to fasten the handle onto the square spindle, an insert with teeth complementary to the rack is inserted into the handle during the translation of the handle onto the square spindle, the teeth of the insert cooperating with the teeth of the rack and becoming slightly deformed to facilitate the advance of the handle on the rack. When the handle is positioned, the teeth return to their undeformed shape and anchor the position of the handle on the square spindle with no return possible.

From document DE1912974 C3, filed by Westfaelisches Metallwerk a mechanism is also known for assembling a handle set on a door configured to allow the assembly of the two handles on either side of the door, regardless of the thickness of the door, if the latter is comprised in the adjustment zone provided by the teeth of the adjustment device. The mechanism described has teeth arranged on the square spindle, which is fastened in a first handle and which cooperates with an insert having complementary teeth, said insert being positioned in the second handle. The assembly is carried out by translation of the second handle on the square spindle. The positioning of the second handle on the square spindle is carried out by the cooperation of the square spindle teeth/insert. Adjustment of the assembly with respect to the thickness of the door is carried out by the advance of the translation of the second handle on the square spindle until said second handle abuts against the door. To lock the second handle on the square spindle, a headless screw is inserted into the collar of the handle which cooperates with a groove arranged in the insert of said second handle.

None of these inventions takes into account the ergonomics or the gestures of the final, non-trade user. In fact, the latter may find it necessary to mount their customized handles themselves on several different opening leaves with the aim of unifying a room, the assembly and especially the disassembly of said handles is complex and does not leave any possible margin for error. In addition, there are few or no handle designs which are equally compatible with a window as with a door or a French door and offer an assembly that is quick, requires no tools and can be adapted to any thickness of opening leaf. Moreover, these devices have risks with respect to reliability and durability associated with locking by screwing or by the use of spring to hold the teeth in position in the rack.

SUMMARY

An aim of the invention is to resolve all or some of the abovementioned drawbacks and in particular to allow a quick and ergonomic assembly of a handle set or a single handle offering a range of adjustment making it possible to adjust for the thickness of the opening leaf.

To this end, a subject of the invention is a handle assembly intended to be secured on an opening leaf, comprising at least:a first handle comprising at least one recess,a square spindle extending along a longitudinal axis and configured to be housed at least partially in the recess of the first handle,
the first handle being configured to slide freely along the longitudinal axis of the square spindle over a given distance selected when the handle assembly is installed in an initial configuration, said handle assembly being characterized in that the first handle is configured to pass from the initial configuration to a securing configuration in which the first handle is immobilized in translation and in at least one direction of rotation with respect to the square spindle, by at least one displacement in rotation of the first handle about the longitudinal axis of the square spindle by an angle strictly less than 360°.

The advantage of such a handle assembly resides in the ease of assembly and securing of the first handle on the square spindle and on the opening leaf. In fact, the assembly is quick since a translation of the first handle on and around the opening leaf is sufficient for the assembly of the first handle. Securing is then carried out intuitively by actuating the handle in rotation in a direction of rotation of the handle, preferably in the direction of actuation of the handle.

According to a characteristic of the invention, the first handle is preferably configured so that in the securing configuration, the square spindle is driven in rotation with respect to the opening leaf.

According to a characteristic of the invention, the displacement in rotation of the first handle around the longitudinal axis of the square spindle can preferably be by an angle of substantially 45° or of 90° or 135°.

Advantageously, a rotation of 45° preferably corresponds to an assembly of a handle assembly comprising a single handle on a window without depth adjustment.

Advantageously, a rotation of 90° preferably corresponds to an assembly of a handle assembly comprising a first handle and a second handle with depth adjustment.

Advantageously, a rotation of 135°20 preferably corresponds to an assembly of a single handle assembly on a window with a pawl catch device.

According to a characteristic of the invention, the relief of the square spindle preferably extends over a given distance, each point of the distance preferably corresponding to an insertion depth of the handle. Thus, the cooperation of the square spindle and the recess of the first handle at a point allows immobilization in translation at the chosen depth, which allows the easy use of such a handle assembly regardless of the thickness of the opening leaf. Advantageously, the handle assembly according to the invention preferably makes it possible to take up a variation in the thickness of the opening leaf of the order of substantially 10 mm.

According to a characteristic of the invention, the recess is preferably a through or blind recess.

According to a characteristic of the invention, the recess is preferably arranged in an end portion of the first handle.

According to a characteristic of the invention, the recess preferably comprises an inner wall delimiting an inner volume shaped to receive at least a portion of the square spindle.

According to a characteristic of the invention, the recess is preferably globally cylindrical in shape.

According to a characteristic of the invention, the recess preferably comprises at least one locking member configured to cooperate with a complementary locking member in securing configuration, the locking member preferably being directly or indirectly arranged in the recess.

According to a characteristic of the invention, the recess preferably comprises at least one complementary relief arranged in its inner volume, preferably configured to cooperate with a relief of the square spindle.

According to a characteristic of the invention, the complementary relief of the recess preferably comprises a rack or a succession of projecting spurs extending longitudinally over at least a portion of the inner volume of the recess.

According to a characteristic of the invention, the locking member can preferably have the form of a spur or a notch or a succession of ribs or grooves.

According to a characteristic of the invention, the locking member is preferably arranged in the inner volume of the recess.

According to a characteristic of the invention, the locking member is preferably a notch configured to cooperate with a complementary locking member in the form of a spur arranged directly or indirectly on the square spindle.

Alternatively, the locking member is preferably a spur configured to cooperate with a complementary locking member in the form of a notch arranged directly or indirectly on the square spindle.

According to a characteristic of the invention, the cooperation between the locking member and the complementary locking member is preferably a cooperation of the bayonet type.

According to a characteristic of the invention, the locking member and the complementary relief can be merged in one and the same member for immobilizing in rotation and in translation.

According to a characteristic of the invention, the recess preferably comprises an insert integrated in the inner volume of said recess.

According to a characteristic of the invention, the insert preferably has a shape which fits closely with the shape of the recess of the first handle and preferably more particularly the shape of the inner wall of the recess delimiting the inner volume of the recess.

According to a characteristic of the invention, the insert is preferably captive and immobilized in the inner volume of the recess. For example, the insert can be embedded, riveted, inserted by force, etc.

According to a characteristic of the invention, the insert is preferably globally cylindrical in shape.

According to a characteristic of the invention, the insert preferably comprises a through hollow delimited by an inner wall.

According to a characteristic of the invention, the insert preferably comprises an outer wall intended to be in contact with the inner wall of the recess.

Advantageously, the insert preferably comprises at least one angular guide element configured to cooperate with a complementary guide element arranged in the inner wall of the recess.

According to a characteristic of the invention, the guide element can be a pin or a hollow or a rib or a groove, and the complementary guide element can be respectively a hollow or a pin or a groove or a rib.

According to a characteristic of the invention, the locking member of the recess can be positioned on the insert preferentially on the inner wall of the insert.

According to a characteristic of the invention, the complementary relief of the recess can be arranged on the insert.

According to a characteristic of the invention, the thickness of the inner wall of the insert preferably has a radial variation forming a cylindrical ramp.

In other words, the inner wall of the insert preferably forms a radially progressive ramp. This geometry makes it possible to pass a movable part of an adaptor from a retracted position in which the complementary relief and the relief of the square spindle are not in contact, to an engaged position in which the complementary relief and the relief of the square spindle mate together and engage with one another.

Of course, the ramp can be directly arranged in the recess.

For example, if the ramp increases in an anticlockwise direction, the inner wall becomes thicker in this anticlockwise direction of rotation.

According to a characteristic of the invention, the ramp preferably comprises at least one stop on one end of said ramp in order to mark a first end position corresponding to the retracted position of the movable part.

According to a characteristic of the invention, the ramp can be symmetrical and have a first end and a second end convergent towards a central portion; from the first end towards the central portion the ramp descends and from the central portion to the second end the ramp ascends. This configuration allows a movement in rotation of the first handle and thus of the insert, either in the clockwise direction, or in the anticlockwise direction.

According to a characteristic of the invention, the recess preferably comprises an adapter shaped to be housed in the insert or directly in the recess, said adapter preferably comprises an inner cavity adapted to the shape of the square spindle.

According to a characteristic of the invention, the adapter preferably serves as an intermediary between the insert and the square spindle. And more particularly, the adapter preferably bares the complementary relief intended to cooperate with the relief of the square spindle.

According to a characteristic of the invention, the adapter preferably comprises a main body in which the inner cavity is arranged. Preferentially, the inner cavity is a through cavity.

According to a characteristic of the invention, the adapter is preferably free in rotation in the recess of the first handle.

According to a characteristic of the invention, the complementary locking member intended to cooperate complementarily with the locking member of the recess positioned on the insert or on the recess, is preferably arranged on the adapter.

According to a characteristic of the invention, the complementary locking member can be at least a projecting spur, a hollow or notch, a rib, a groove or a surface state equipped with relief(s), etc. as a function of the shape of the locking member.

According to a characteristic of the invention, the adapter preferably comprises an elastically deformable portion configured so as, in a first state, to be compressed by a portion of the insert pressing on said elastically deformable portion of the adapter, and in a second state, to be released so that it cooperates with a retaining hollow arranged in the insert.

According to a characteristic of the invention, the complementary relief of the recess can be arranged on the adapter directly or indirectly.

According to a characteristic of the invention, the adapter preferably comprises a movable part mounted in a removable manner on the main body of the adapter.

According to a characteristic of the invention, the movable part can be formed in a single piece with the main body of the adapter or separately.

When the movable part is formed in a single piece with the main body, the latter is preferably connected with at least one elastically deformable connection to the main body.

According to a characteristic of the invention, the movable part is preferably configured to be mobile between a retracted position and an engaged position with respect to the main body.

Preferentially, the complementary relief of the recess is preferably positioned on the movable part.

According to a characteristic of the invention, the main body of the adapter preferably comprises an opening though which the complementary relief is intended to project in the engaged position of the movable part.

According to a characteristic of the invention, the movable part preferably comprises a bearing surface opposite the complementary relief, the bearing surface being shaped to cooperate with the insert ramp, so that when the handle is in the securing configuration, the movable part is displaced in the main body into the engaged position, the displacement of the movable part being induced by the rotation of the handle and more particularly of the insert about the longitudinal axis of the square spindle, the ramp arranged in the insert forcing the displacement of the movable part by exerting a pressure on said movable part.

According to a characteristic of the invention, the square spindle preferably comprises at least one relief arranged directly or indirectly on the square spindle.

According to a characteristic of the invention, the square spindle preferably comprises at least a part having a square transverse section. The part having a square transverse section preferably being the part intended to pass through the follower of the opening leaf or to cooperate with a latch mechanism of the opening leaf.

According to a characteristic of the invention, the section of the square spindle can be of a shape other than square, for example, triangular, rectangular or polygonal or any other shape adapted to the opening leaf mechanism.

According to a characteristic of the invention, the square spindle preferably comprises a first end intended to cooperate with the first handle.

According to a characteristic of the invention, the square spindle preferably comprises a second end opposite the first end, the second end being intended to cooperate with a second handle or with an opening leaf follower.

According to a characteristic of the invention, the square spindle preferably comprises at least one relief arranged on at least a part of its length, and configured to cooperate with the relief equipping the recess or the insert or the adapter.

According to a characteristic of the invention, the relief of the square spindle can comprise a rack or a succession of grooves or depressions with respect to the surface of the square spindle, extending longitudinally along the longitudinal axis of the square spindle. Advantageously, the relief of the square spindle has the form of a rack or a succession of projecting spurs, making it possible to adjust the depth of the first handle on the square spindle and to immobilize it in translation on the longitudinal axis of the square spindle.

According to a characteristic of the invention, the square spindle preferably comprises a complementary locking member which can have the form of a spur or a notch, which participates in that which allows locking in rotation of the first handle on the square spindle. The relief of the square spindle can incorporate the complementary locking member.

According to a characteristic of the invention, the complementary locking member can be arranged directly or indirectly on the square spindle.

According to a characteristic of the invention, the complementary locking member can be arranged directly or indirectly on the adapter.

According to a characteristic of the invention, the complementary locking member is preferably a notch configured to cooperate with a locking member of the recess.

Alternatively, the complementary locking member is preferably a spur configured to cooperate with a locking member of the recess, for example a notch.

According to a characteristic of the invention, the handle assembly preferably comprises in addition a catch device configured to allow the first handle to catch to an opening leaf mechanism or a second handle of the handle assembly.

According to a characteristic of the invention, the catch device preferably comprises a pawl, a drive rod of the pawl and a drive pin of the drive rod.

According to a characteristic of the invention, the square spindle preferably comprises a through orifice extending longitudinally through the square spindle and shaped to at least partially house a drive rod.

According to a characteristic of the invention, the drive pin is preferably mounted on a first end of the drive rod and is shaped to be housed in the recess of the first handle.

According to a characteristic of the invention, the pawl is preferably mounted on a second end of the drive rod opposite the drive pin.

According to a characteristic of the invention, the pawl is preferably configured to be mobile between at least two positions:a passing position in which the pawl is aligned with the square spindle,a catching position in which the pawl is not aligned with the square spindle and has a projecting shape with respect to said square spindle.

Advantageously, in the passing position, the pawl is preferably in the extension of the square spindle, which allows to pass the opening leaf mechanism and more precisely the follower, the square spindle preferably being dimensioned to cooperate by complementarity of shape with the follower of the mechanism. While in the catching position, the pawl is preferably projecting with respect to the profile of the square spindle, which prevents the pawl from passing into the opening leaf mechanism and specifically through the follower.

According to a characteristic of the invention, the square spindle preferably comprises faces which in the passing position are coplanar with faces of the pawl and which in the catching position are secant to the faces of the pawl.

According to a characteristic of the invention, the pawl preferably passes from the passing position to the catching position by a rotation, by a given angle, preferentially by an angle of 45°, of the first handle.

According to a characteristic of the invention, the catch device preferably comprises an elastically deformable compressible member, for example a spring or an elastically deformable membrane, the compressible member being positioned around a part of the drive rod.

According to a characteristic of the invention, the pawl and the drive pin are preferably crimped on the drive pin. Preferentially the drive pin is housed in the first handle.

According to a characteristic of the invention, in an intermediate configuration of the first handle, between the initial configuration and the securing configuration, the pawl is preferably in the passing position, the recess portion of the first handle is placed flat against the base plate and the elastically deformable compressible member is compressed inside the recess portion of the first handle. According to a characteristic of the invention, in the securing configuration, the elastically deformable compressible member is released, the complementary locking member is housed in the locking member.

The base plates or roses used in the assembly of the handles on the opening leaves are preferably generally secured using screws. In the case of window handles, the base plate is preferably secured to the opening leaf by screwing two screws into the espagnolette mechanism.

Advantageously, the technical solution developed according to the invention preferably uses the aperture in the opening leaf aperture made in the doors or windows in order to allow passing of the square spindle through the follower of the latch. This aperture is preferably generally of a standardized diameter of 22 mm for doors.

According to the invention, it is possible to ensure securing of a base plate with the opening leaf by using the movement in rotation of the handle and the force which can be associated with it.

In the present invention, by “front portion” of an element, is preferably meant a portion which, in the assembly direction, is proximal to the first handle of the handle assembly.

In the present invention, by “back portion” of an element, is preferably meant a portion opposite to the front and distal part, in the assembly direction, and to the first handle of the handle assembly.

According to a characteristic of the invention, the handle assembly preferably comprises a device for additional securing of a base plate in the opening leaf, said device preferably comprising at least one base plate configured to be at least partially housed in an opening leaf aperture and at least one locking element configured to immobilize in translation and in rotation, directly or indirectly, the base plate in the opening leaf aperture, by rotation of the first handle in at least one direction of rotation.

This additional securing device is very advantageous because it is compact, makes it possible to ensure the reinforcement of the opening leaf aperture in a configuration and to ensure securing.

According to a characteristic of the invention, the base plate preferably comprises at least one receiving orifice intended to be positioned facing the mechanism of the opening and configured to receive a portion of the first handle.

According to a characteristic of the invention, the base plate can be an outer cover extending over the opening leaf, around the opening leaf aperture.

According to a characteristic of the invention, the base plate can comprise at least two parts, a first portion, for example U-shaped, intended to be slid from one side of the square spindle and a second portion, intended to slide from the other side of the square spindle so as to fit tightly with the first portion of the square spindle, the second portion cooperating in a fixed manner with the first portion.

In a variant, the base plate is preferably a part fitted on the end of the handle and more particularly at the level of the catch portion of the handle.

Preferentially, the base plate can be fixed to the opening leaf without screws and without assembly tools, either simply by the catch effect of the pawl, or by the combined effect of the pawl and of the locking element of the additional securing device.

According to a characteristic of the invention, the base plate is preferably an inner base plate comprising a first portion having a recess shaped to house the locking element.

Preferentially, the first portion is preferably oblong in shape and contains a lock that is oblong in shape and mobile in rotation about the axis of the square spindle so that during the rotation of the first handle, the lock is possibly driven in rotation until reaching an angle where it is partially protruding from the first portion of the base plate.

According to a characteristic of the invention, the first portion of the base plate is preferably intended to pass through the opening leaf and project on a side of the opening leaf opposite the side of the opening leaf where the first handle is positioned.

According to a characteristic of the invention, the base plate preferably comprises a second portion in which the receiving orifice of the first handle is arranged.

According to a characteristic of the invention, the base plate of the additional securing device can be an expansive base plate configured to extend in the opening leaf aperture.

According to a characteristic of the invention, the expansive base plate preferably is in the shape of a disk comprising a front portion turned towards the first handle and a back portion turned towards the second handle and/or the opening leaf.

According to a characteristic of the invention, the back portion of the base plate preferably comprises a plurality of elastically deformable blades arranged around a central orifice.

Preferentially, the expansive base plate preferably comprises three blades arranged regularly around the central orifice.

According to a characteristic of the invention, the blades preferably each have a folded end forming a hook or a point configured to penetrate into the material of the door.

According to the invention, the locking element is preferably configured to indirectly immobilize the base plate in translation and in rotation in the opening leaf aperture, when the locking element is an expansion cam configured to cooperate with the expansive base plate and preferably comprising at least one member configured to force the expansion at least of a part of the expansive base plate into the opening leaf aperture, by rotation of the first handle.

According to the invention, the locking element is preferably configured to directly immobilize the base plate in translation and in rotation in the opening leaf aperture, when the locking element is a lock equipped with a contact surface, the contact surface acting directly on the lock which directly immobilizes the base plate.

According to a characteristic of the invention, the locking element is preferably a lock equipped with a contact surface, in the case of an inner base plate.

According to a characteristic of the invention, preferably, the shape of the lock is preferentially oblong, comprising two diametrically opposite vanes, a clip which is in the form of an elastically deformable bracket and arranged on one side of the lock between the vanes.

According to a characteristic of the invention, the lock preferably comprises an inner lug intended to cooperate with a portion of the contact surface.

In addition, according to a characteristic of the invention, the contact surface is preferably shaped to be positioned in the lock and comprise a projecting stop spur configured to cooperate in particular with the clip in order to anchor the securing of the base plate in the opening leaf.

Advantageously, the contact surface is preferably firmly fixed to the square spindle.

According to a characteristic of the invention, the expansion cam is preferably shaped to be mobile in rotation between at least one position in which the cam does not exert a force on the expansive base plate and a position in which the expansion cam exerts a force on the expansive base plate by the rotation of the first handle.

Advantageously, when the square spindle is rotated by actuating the first handle, the square spindle can preferably drive the expansion cam in rotation, over all or part of its stroke.

According to a characteristic of the invention, the expansion cam preferably comprises a front portion on which a drive spur is positioned, the drive spur being intended to cooperate with the insert of the first handle.

According to a characteristic of the invention, the expansion cam preferably is in the shape of a ring or a cylinder.

According to a characteristic of the invention, the expansion cam preferably comprises a back portion on which a plurality of projections is arranged.

Preferentially, the back portion of the cam preferably comprises three projections.

According to a characteristic of the invention, the projections preferably have the shape of progressive ramps in one and the same direction of rotation about a longitudinal median axis A-A of the expansion cam.

According to a characteristic of the invention, the projections are preferably provided at one end with a stop, preferably rounded, which is shaped to cooperate with the blades.

According to a characteristic of the invention, the base plate preferably comprises an external lock mobile in translation and configured to immobilize the first handle.

According to a characteristic of the invention, the external lock preferably cooperates with the first handle and preferably the external lock abuts against the insert or on the adapter or the recess of the handle in order to avoid bringing the first handle towards the opening leaf and to prevent disengagement of the complementary locking member in the locking member.

A subject of the invention is also a system for returning the handle, preferably integrated with a handle assembly according to the invention but which can be applicable to any other handle assembly without a pre-existing return system.

In various situations, it is useful to integrate a spring return system in the handle assembly. This return system makes it possible for the handle to return to the resting position, i.e. oriented horizontally. In addition, this return system makes it possible to assist the spring integrated in the latch mechanism which is sometimes undersized and for this reason does not provide a satisfactory return of the handle.

In the existing return systems, the spring acts between the handle and the opening leaf. It is commonly mounted inside the rose or the plate for securing the handle on the opening leaf, for example a door. It is thus necessary for said roses or plates to be firmly fastened to the door to create the fixed bearing point of the spring, making it possible to counteract the rotation force when the handle is in use. This fastening is carried out by means of screws, either through screws, securing the first rose or plate by direct screwing into the second, opposite rose or plate through the thickness of the door, or by screwing roses or plates on either side of the door into the material of the door itself, generally wood screws.

Nevertheless, this assembly operation has drawbacks. In fact, this operation requires holes to be drilled for through screws, the positioning and the screwing of the wood screws, which is difficult because they are not very accessible, in particular on the rose assembly, due to the proximity of the handle. In addition, this operation poses a risk of operating error and damage to the door (screwdriver or power driver impact) and requires the use of tools (screwdriver, power driver).

An aim of the return system according to the invention is to overcome all or part of the abovementioned drawbacks and in particular to allow the quick assembly of a handle assembly integrating a return spring on a standard door, without tools (screwdriver, drill, etc.) and with minimum equipment.

To this end, a subject of the invention is a handle assembly comprising a handle assembly intended to be secured on an opening leaf, comprising at least:a first handle comprising at least one recess,a square spindle extending along a longitudinal axis and configured to be housed at least partially in the recess of the first handle,
characterized in that the handle assembly comprises in addition a return system of the first handle comprising a return spring configured so as, in one configuration, to force the return of the first handle to the initial position, the return spring comprising a first end arranged on a first member with respect to which the first handle is mobile in rotation and a second end arranged on a second member with respect to which the first handle is fixed in rotation.

Advantageously, when the first handle is in the initial or resting position, the return spring preferably exerts a first force greater than or equal to 0, and when the first handle is rotated, the spring preferably has a second force greater than the first pressure.

According to a characteristic of the invention, the return system can integrate an additional securing device according to the invention so that the first member with respect to which the first handle is mobile in rotation is an expansive base plate.

According to a characteristic of the invention, the second member with respect to which the first handle is fixed in rotation is preferably an insert of the first handle or the first handle itself.

Advantageously, during the rotation of the first handle, a drive spur arranged on the expansion cam preferably abuts against a portion of the insert, which immobilizes the return system in rotation and which prestresses the spring of the return system.

It is thus possible to produce, in one and the same action, the securing of the rose comprising the spring with the door and the handle with the square spindle.

According to a characteristic of the invention, the spring of the return system is preferably in the form of a spiral with at least one coil.

As these embodiments are in no way limitative, variants of the invention can in particular be considered comprising only a selection of the characteristics described or illustrated hereinafter, in isolation from the other characteristics described or illustrated (even if this selection is isolated within a phrase containing these other characteristics), if this selection of characteristics is sufficient to confer a technical advantage or to differentiate the invention with respect to the state of the prior art. This selection comprises at least one, preferably functional, characteristic without structural details, and/or with only a part of the structural details if this part alone is sufficient to confer a technical advantage or to differentiate the invention with respect to the state of the prior art.

DETAILED DESCRIPTION

Regardless of the embodiment of the handle assembly according to the invention, the handle assembly100is intended to be secured on an opening leaf200and comprises at least a first handle110which can be a lever or a button or have any other shape.

In the examples illustrated inFIGS.1to99, the first handle110of the handle assembly100is a lever comprising a grip portion and a recess portion114.

Regardless of the embodiment of the handle assembly according to the invention, the first handle110has a recess111.

In the embodiments illustrated inFIGS.1to99, the recess111of the first handle110is blind but, of course, it can be a through hole.

Regardless of the embodiment of the handle assembly according to the invention, the recess111is arranged in an end portion of the first handle110.

In addition and regardless of the embodiment, the recess111comprises an inner wall delimiting an inner volume shaped to receive at least a portion of the square spindle120.

Regardless of the embodiment of the handle assembly100according to the invention, the handle assembly100moreover comprises a square spindle120extending along a longitudinal axis X-X and configured to be housed at least partially in the recess111of the first handle110.

Regardless of the embodiment of the handle assembly100according to the invention, the square spindle120comprises at least one relief121arranged directly or indirectly on the square spindle120.

Regardless of the embodiment of the handle assembly100according to the invention, the square spindle120comprises at least a part having a square transverse section. The part having a transverse section being the part intended to pass through the follower202of the opening leaf200or to cooperate with a latch mechanism201of the opening leaf200.

Regardless of the embodiment of the handle assembly100according to the invention, the square spindle120comprises a first end intended to cooperate with the first handle110.

Regardless of the embodiment of the handle assembly100according to the invention, the square spindle120comprises a second end opposite the first end, the second end being intended to cooperate with a second handle101or with a follower202of the opening leaf200. In both cases, it also cooperates with a follower202to actuate a latch or an espagnolette, called locking mechanism201of the opening leaf200.

Regardless of the embodiment of the handle assembly100according to the invention, the handle assembly100can comprise an additional securing device configured to reinforce the opening leaf aperture203and to allow securing of a base plate156,171in the opening leaf200. The securing device comprises a base plate156,171.

The first embodiment will now be described with reference toFIGS.1to20.

According to the first embodiment, the handle assembly100can comprise a first single handle110, in this case the handle assembly100is mounted blind on an opening leaf200, or with a first handle110and a second handle101opposing the first handle110, the first handle110and the second handle101being positioned on either side of the opening leaf200.

FIGS.1to20illustrate the case in which the handle assembly100comprises a first handle110and a second handle101.

FIG.1illustrates the different components of the handle assembly100according to the first embodiment. The handle assembly100comprises a square spindle120, which in the case of a handle assembly100without a second handle101can already be fixed on the opening leaf. Moreover, the handle assembly100comprises an insert130and an adapter140comprising a main body141and a clamp142. In the variant of the first embodiment illustrated inFIG.6, the handle assembly100comprises the same components as the handle assembly100according to the first embodiment, and in addition comprises two roses102and two rose covers103.

According to the first embodiment, the square spindle120has a relief121arranged directly on at least a part of its length, and configured to cooperate with a complementary relief112. In the example illustrated inFIG.1according to the first embodiment, the relief121of the square spindle120is in the form of a rack extending longitudinally along the longitudinal axis X-X of the square spindle120. The ridges of the relief each correspond to a given distance at which the first handle can be immobilized in translation, in its securing configuration. Depending on the thickness of the opening leaf200and on the locking mechanism of the opening leaf200, the first handle110cooperates with the square spindle120over a given distance.

According to the first embodiment, the insert130, illustrated inFIG.2, is intended to be integrated in the inner volume of the recess111of the first handle110, as will be seen in the remainder of the description. In the first embodiment, the insert130comprises at least one guide element131configured to cooperate with a complementary guide element111barranged in the inner wall of the recess111as illustrated in particular in the figures in cross section of the handle assembly according to the first embodiment. In this example, the guide element131is a pin and the complementary guide element111bis a hollow shaped to receive said pin. Of course, the guide element131can take other forms such as a hollow or a rib or a groove and the complementary guide element111bcan complementarily have the shape of a pin or a groove, or a rib. Advantageously, the insert130is captive and immobilized in the inner volume of the recess111. For example, the insert130can be embedded, riveted, inserted by force, etc. Moreover, it should be noted that the guide element131and the complementary guide element111bare optional and may not be present.

In the first embodiment, the locking member150is arranged on the insert130, on the inner wall of the insert130. The locking member150is a notch intended to cooperate with a complementary locking member151of the spur type. The locking member150extends over a part of the circumference of the insert and forms with the complementary locking member151a bayonet fitting system. In addition, the inner wall of the insert130at least partially forms a progressive ramp132about an axis of revolution merged with the longitudinal axis Y-Y along which the insert130extends.

The adapter140illustrated inFIG.3comprises a main body141preferentially in the shape of a ring. The main body141comprises an inner cavity143adapted to the shape of the square spindle120. The inner cavity143is preferentially a though cavity along a longitudinal axis Z-Z of the adapter140. The complementary locking member151is positioned on the outer wall of the adapter and is in the shape of a projecting spur.

In the first embodiment, the complementary relief112of the recess111is arranged on the adapter140. More particularly, the adapter140comprises a movable part142mounted in a removable manner on the main body141of the adapter140, the complementary relief112being arranged on the movable part142. The movable part142is configured to be mobile between a retracted position and an engaged position with respect to the main body141. In the engaged position, the movable part142is under compression on the main body141, the movable part142being connected to the main body141by at least one elastically deformable member146, for example a spring.

The main body141of the adapter140comprises an opening144through which the complementary relief112is intended to project in an engaged position of the movable part142. In addition, the movable part142comprises a bearing surface142aopposite the complementary relief112, the bearing surface142abeing shaped to cooperate with the ramp132of the insert130.

According to the first embodiment, the adapter140comprises an elastically deformable portion145configured so as, in a first state, to be compressed by a portion of the insert as can be seen inFIGS.14,16,18,20, pressing on said elastically deformable portion145of the adapter140, and in a second state, to be released in the insert130as can be seen inFIG.20. In the first embodiment, the elastically deformable portion145comprises a spur. In a variant, the elastically deformable portion145can be a spring blade integrated in a groove147arranged in the adapter140as illustrated inFIG.4.

In the first embodiment, the second handle101is mounted on the square spindle120on a side of the opening leaf200as illustrated inFIG.9. This assembly can be permanent (crimping, pin, etc.) or removable (screwing, removable clip, etc.).

As shown inFIGS.9,13and14, on the other side of the opening leaf, the first handle110is pre-mounted by inserting into the recess111, the insert130and adapter140assembly. Of course, it is possible that the insert130is already mounted in the recess111. In this pre-mounted configuration, the movable part142of the adapter140is in retracted position with respect to the main body141of the adapter140, as can be seen inFIGS.9and13,14. In addition, in this configuration, the first handle110has a first orientation in which the grip portion113of the first handle110is vertical. The movable part142is positioned on an affine position of the ramp132as can be seen inFIG.13and inFIG.14.

InFIGS.10,15and16, the initial configuration of the first handle110is shown in which the first handle110can slide freely along the longitudinal axis X-X of the square spindle120over a distance determined by the relief121of the square spindle120and the complementary relief112arranged on the movable part142. In this embodiment, the first handle110is mounted on the square spindle120until it abuts the opening200, as can be seen inFIGS.10and15.

When the square spindle120enters the inner cavity143of the adapter140, the relief121and the complementary relief112are positioned facing one another without interlocking.

InFIGS.11,17and18, the first handle110is rotated in a direction of rotation, in this case in the clockwise direction. The movable part142moves on the ramp132and because of the shape of the ramp132, the movable part142tends towards the engagement position and is compressed little by little towards the main body141of the adapter140so that the relief121of the square spindle120and the complementary relief112of the movable part142mate, this pairing making it possible to immobilize the first handle110in translation with respect to the square spindle120.

InFIGS.12,19and20, the first handle is in the securing configuration: the first handle110is immobilized in translation with respect to the square spindle120and is immobilized in rotation with respect to the square spindle120. In this configuration, the relief121of the square spindle120mates with the complementary relief112, the movable part142being in an engagement position and compressed against the main body141so that the complementary relief112projects with respect to the opening144arranged in the main body of the adapter140. In addition, in this configuration, the locking member150cooperates with the complementary locking member151in order to immobilize the first handle in rotation with respect to the square spindle.

The set of steps detailed inFIGS.9to20are applicable to the variant of the first embodiment illustrated inFIGS.6to8, an additional step of positioning the rose102and its cover103being carried out before the assembly of the first handle110on the square spindle120, except in the case where the rose is secured with the handle110in particular by a resilient ring called a “circlip” upstream.

In a first variant of the first embodiment that is not shown, the movable part142can be in a single piece with the main body141, the stroke of the movable part142and the return to position are obtained by the degree of freedom allowed by the resilient connection with the main body of the adapter140.

In a second variant that is not shown, the insert130can be omitted and the shaped ramp132can be arranged directly in the recess111of the handle110and also the locking member150.

In the first embodiment and all the variants described above, the movement in rotation of the first handle110can only be operated in a clockwise direction. In a third variant that is not shown, the movement of the first handle110in rotation can be performed in a clockwise direction or in an anticlockwise direction as a function of the opening on the right or the left of the opening leaf. To this end, in the third variant that is not shown, the ramp132is symmetrical and has a first end and a second end convergent towards a central portion, from the first end to the central portion the ramp descends and from the central portion to the second end the ramp132ascends. Moreover, the locking member150, arranged on the insert130, is enlarged radially so that the complementary locking member151abuts one side or the other of the locking member150allowing either locking in the clockwise direction or locking in the anticlockwise direction. Furthermore, the square spindle120must have at least two faces equipped with reliefs121in order to allow the catching of the complementary relief112of the clamp142on one side or the other of the square spindle120according to the assembly position.

The second embodiment will now be described with reference toFIGS.44to55.

According to the second embodiment, the handle assembly100comprises a first single handle110mounted blind on an opening leaf200.

FIG.44illustrates the different components of the handle assembly100according to the second embodiment. The handle assembly100comprises a handle110, a square spindle120, an insert130, a pawl152, a drive rod153of the pawl152and drive pin154of the drive rod153.

According to the second embodiment, the square spindle120comprises a complementary locking member151directly arranged on its outer surface and intended to cooperate with a locking member150arranged on the insert130.

The square spindle120according to the second embodiment has a transverse section that is globally circular except at least one end part120awith a square or rectangular transverse section having a shape corresponding to the shape of the opening leaf mechanism200and more particularly to the follower of the opening leaf mechanism200.

The square spindle120according to the second embodiment comprises a through orifice122extending longitudinally through the square spindle120and shaped to partially house a drive rod153, as can be seen inFIG.46for example. The drive pin154is mounted to a first end of the drive rod153and is shaped to be housed in the first handle110. The pawl152is mounted on the other end of the drive rod153and is shaped to pass through the follower202of an opening leaf mechanism201. In this embodiment, the pawl152has a 45° angle in its locked position with respect to the square spindle of the follower202, which allows the fastening of the first handle110to the opening leaf200.

In addition, a spring155is arranged in the recess111of the first handle110and abuts against the drive pin154, itself housed in the recess111.

According to the second embodiment, the pawl152and the drive pin154are crimped on the drive rod153. The drive pin154cooperates with a counter-shape provided in the first handle110, but must remain free in translation to allow the engagement of the complementary locking member151in the locking member150.

According to the second embodiment, the insert130, illustrated inFIG.45, is intended to be integrated in the inner volume of the recess111of the first handle110, as will be seen in the remainder of the description. In the second embodiment, the insert130comprises at least one guide element131configured to cooperate with a complementary guide element (not shown) arranged in the inner wall of the recess111. In this example, the guide element131is a pin and the complementary guide element is a recess shaped to receive the pin. Of course, the guide element131can take other forms such as a hollow or a rib or a groove and the complementary guide element111bcan respectively have the shape of a pin or a groove, or a rib. In addition, it should be noted that the guide element and the complementary guide element are optional and may not be present.

In the second embodiment, the locking member150is arranged on the insert130, on the wall of the insert130. The locking member150is a notch intended to cooperate with a complementary locking member151of the spur type arranged on the square spindle120. The locking member150extends over a part of the circumference of the insert130and forms with the complementary locking member151a bayonet fitting system.

InFIGS.47and48the handle assembly according to the second embodiment is illustrated assembled.

The method for assembling the handle assembly100according to the second embodiment will now be described with reference toFIGS.49to55.

In a first step illustrated inFIG.49, a base plate156is mounted on the opening leaf200, the base plate156comprising at least one receiving orifice157of the first handle110and an outer lock158of the first handle110. Preferentially, the base plate156is fastened on the opening leaf200, the receiving orifice157being arranged opposite the follower202of the mechanism201of the opening leaf200and the outer lock158of the base plate156is in the unlocked position.

In a variant that is not shown, a spring is placed between the base plate156and the first handle110so as to maintain the locked position of the locking members150,151.

In a second step illustrated inFIG.50, the first handle110is brought towards the assembled base plate156. The pawl152, and optionally, a portion of the square spindle120pass through the follower202of the opening leaf200. The pawl being in a passing position i.e. the square spindle120having faces coplanar with those of the pawl152. In this second step, the grip portion113of the first handle110is oriented along an axis secant and non-perpendicular to an axis that is vertical and normal to the ground for example.

In a third step illustrated inFIG.51, the first handle110is inserted into the opening leaf200through the base plate156, so that: the pawl152passes through the follower202and beyond, the recess portion114of the handle110is placed flat against the opening leaf200, in the receiving orifice157, the spring155is compressed inside the recess portion114of the first handle110.

In a fourth step illustrated inFIGS.52and54, the first handle110is rotated about the axis of the square spindle120by an angle α, preferentially 45°, preferentially in an actuating direction of rotation of the handle, in this case in the clockwise direction. This rotation drives the rotation of the pawl152with respect to the follower202, which remains fixed, so that the latter is in the catching position in which the pawl152can no longer leave the follower202.

In a fifth step illustrated inFIG.53, the first handle110is released so that the spring155is no longer compressed. By releasing the compression, the complementary locking member151of the square spindle120is housed in the locking member150of the insert130. Following this release, the outer lock158of the base plate156is placed in the locked position. In this locked position, the outer lock158cooperates with a shoulder arranged on the insert130to immobilize the latter. In this locked position, the handle can no longer be placed flat against the opening leaf which has the effect of immobilizing the bayonet in its position and therefore of immobilizing the first handle110with respect to the opening leaf200as illustrated inFIG.55.

Once these steps have been carried out, the first handle110is ready to be used to actuate the opening leaf200which can for example be a window. By rotating the first handle110, the opening leaf mechanism200is driven and can allow the opening of the opening leaf200without coming away from the first handle110. It can also allow other manipulations such as positioning in the tilt and turn position.

In a first embodiment of the securing device shown inFIGS.56to76, the securing device includes the base plate156, a lock190, a contact surface193. More particularly, the base plate156comprises a first portion156ahaving a recess156cshaped to house the lock190as illustrated inFIGS.56,57and58. The first portion156aof the base plate156is intended to pass through the opening leaf200and project on a side of the opening leaf opposite the side of the opening leaf200where the first handle110is positioned, as can be seen in particular inFIG.63. The base plate156comprises a second portion156bin which the receiving orifice157of the first handle110is arranged.

In addition, the lock190is oblong in shape, comprising two diametrically opposed vanes191, a clip192which is in the form of an elastically deformable bracket and arranged on one side of the lock between the vanes191. The lock190comprises an inner lug195intended to cooperate with a portion of the contact surface193as can be seen in particular inFIGS.67,69,71,74and76.

In addition, the contact surface193, shaped to be positioned in the lock190comprises a projecting stop spur194configured to cooperate in particular with the clip192in order to anchor the securing of the base plate156in the opening leaf200. Advantageously, the contact surface193is secured to the square spindle120.

The assembly of such a securing device will now be described with reference toFIGS.59to76.

The base plate156can be inserted in two different ways illustrated inFIGS.59and60. Either the base plate156is inserted directly in the opening leaf aperture203as illustrated inFIG.59, or the base plate156is mounted on the first handle110and inserted in the opening leaf aperture203with said first handle110as illustrated inFIG.60. Regardless of the way of inserting the base plate156in the opening leaf aperture203, the first handle110must be oriented by an angle β with respect to a vertical line, the angle β being acute and preferentially approximately 45°, as illustrated inFIG.61.

Once the base plate156is inserted and the first handle110positioned as illustrated inFIGS.61,62and63, the first handle110is rotated with respect to the square spindle120, as illustrated inFIGS.64and65, to secure the first handle110with the square spindle120and the square spindle120with the follower201(not shown), in the case of a window handle. The square spindle120as well as the contact surface193remain immobile as can be seen inFIG.65. In this step, similar to the step shown inFIG.52, the grip portion113of the first handle110is oriented vertically downwards, i.e. the free end of the first handle points towards the ground.

Then, the first handle110is again rotated by an angle, preferentially approximately 45°, upwards, the rotation of the first handle110driving the square spindle120and the contact surface193in rotation as illustrated inFIGS.66and67. As can be seen inFIG.67, by this new rotation, the stop spur194opens the clip192of the lock190. Rotation in this direction continues, until the grip portion113of the first handle110is substantially horizontal as illustrated inFIG.68. This continuing rotation allows the stop spur194to pass beyond the clip192of the lock190as illustrated inFIG.69.

Then, the first handle110is rotated in the direction opposite to that previously used, so that the stop spur194drives the base plate lock190by means of the clip192until the vanes191abut respectively each against a portion of the base plate recess156cas illustrated inFIGS.73to75. The lock190then remains in place and secures the base plate156with the opening leaf200. Finally, in normal use of the first handle110of the handle assembly100, the lock190remains in place while opening and closing the opening leaf200as illustrated inFIGS.74and76.

The securing device can cover two other embodiments illustrated inFIGS.29to43. These two embodiments are described integrated in a return system170of the first handle but could be omitted from the return system.

In this case, the securing device according to these two embodiments would comprise and expansive base plate171and an expansion cam172as described with reference toFIGS.29to43.

The third embodiment will now be described with reference toFIGS.77to81.

The third embodiment differs from the first embodiment only in that the handle assembly100comprises a first handle110and a second handle101antagonist to the first handle110, the first handle110and the second handle101being positioned on either side of the opening leaf200. Thus, the catching of the first handle110by means of the pawl152no longer takes place behind the follower202as in the second embodiment but behind the square recess arranged in the opposite handle as illustrated inFIG.81.

The remainder of the characteristics and in particular the components of the handle assembly100and their functions are identical to those of the second embodiment.

InFIG.79, according to a first assembly step, the first handle110is placed against the opening leaf200, the pawl152being aligned with the square spindle120and projecting with respect to the opening leaf and the opening leaf mechanism201. The second handle101is placed opposite the pawl152, on the other side of the opening leaf200with respect to the first handle110. In this step, the first handle is raised by an angle preferentially equal to 45°.

InFIG.80, according to a second assembly step, the second handle101is introduced so as to be fitted on the square spindle120projecting with respect to the opening leaf200. The first handle110and the second handle101are brought to abut against the opening leaf200on either side of said opening leaf200, the first handle still being raised, unlike the second handle101, which has its grip portion horizontal, as illustrated inFIG.80.

Following this second step, the first handle110is rotated in order to be realigned with the second handle101, by an angle preferentially equal to −45°, so that the grip portion113of the first handle is horizontal as illustrated inFIG.81. This rotation drives the rotation of the pawl152in the second handle101so that the latter has an abutment configuration in which it can no longer leave the second handle101.

The fourth embodiment will now be described with reference toFIGS.82to99.

The fourth embodiment differs from the first embodiment in that it comprises a catch system. The catch system of the handle assembly100according to the fourth embodiment is similar to that of the second embodiment.

The fourth embodiment differs from the second embodiment in that it comprises a system for adjusting the depth of the first handle by cooperation of the relief. The system for adjusting the handle assembly according to the fourth embodiment is similar to that of the first embodiment.

In the fourth embodiment, the handle assembly100comprises a first single handle110mounted blind on an opening leaf200. Of course and according to a variant that is not shown, the handle assembly100according to the fourth embodiment can comprise a second handle101, reference will be made to the assembly of the variant of the second embodiment applicable in this case.

In the fourth embodiment and as can be seen inFIG.82, the handle assembly100comprises a first handle110, an insert130, a square spindle120, a drive pin154, a drive rod153, a pawl152and a spring155.

In the fourth embodiment, the square spindle120comprises a through orifice122as illustrated inFIG.82, in which the drive rod153is housed. The drive pin154is arranged on one end of the drive rod153and the pawl152is arranged on the other end. The spring155is mounted on a portion of the square spindle120behind the pawl152. In addition, the square spindle120according to the fourth embodiment comprises a relief121intended to cooperate with a complementary relief112positioned on the insert130.

The square spindle120comprises a notch161arranged on an end receiving the drive pin154.

The drive pin154comprises a spur160intended to be housed in the notch161in order to lock the square spindle mounted on the opening leaf200.

The drive pin154is mounted mobile in rotation with respect to the square spindle120.

In the fourth embodiment, the insert130comprises a receiving orifice133delimited by an inner wall134. The receiving orifice133is intended to partially accommodate the square spindle120and the drive pin154. The inner wall134of the insert130comprises two complementary reliefs112a,112bshaped to cooperate with the relief121arranged on the square spindle120. In the example illustrated inFIG.84, the two complementary reliefs112a,112bextend over a part of the circumference of the inner wall134of the insert130and over a part of the length of the insert130. The first complementary relief112aand the second complementary relief112bare spaced apart from one another by a space without a relief112c.

The insert130according to the fourth embodiment can comprise a guide element131cooperating with a complementary guide element111bpositioned in the recess111of the first handle110, when the insert130is housed in the first handle110.

The rotation of the handle on the square spindle120is limited by the stops112darranged on either side of the complementary relief or reliefs112,112a,112b.

In a variant that is not shown, the inner wall134of the insert130comprises a single complementary relief112shaped to cooperate with the relief121arranged on the square spindle120.

The method for assembling the handle assembly100according to the fourth embodiment will now be described with reference toFIGS.86to99.

In a first step illustrated inFIG.86, the base plate156is mounted on the opening leaf200. This base plate156can be fastened by screwing or other means.

In a second step illustrated inFIG.87, the mounted square spindle120is inserted in the opening leaf mechanism201, through the base plate156. In the present description, by “mounted square spindle” is meant the assembly of the square spindle120, the drive rod153, the drive pin154and the pawl152and the spring155.

In a third step and as can be seen inFIG.89, the spring155is compressed in order to cause the pawl152to project beyond the follower202. Advantageously, the positioning of the mounted square spindle is carried out without tools. In this step, the pawl152is in the passing position and is thus aligned with the square spindle120. A rotation of 45° of the drive pin154makes it possible to position the pawl152at 45° to the follower202and to allow the locking of the square spindle120mounted on the opening leaf200. The spur161is housed in the notch160in order to maintain the locked position on the opening leaf200.

FIGS.90and91illustrate the mounted square spindle120, inserted in the opening leaf mechanism201. The mounted square spindle120is configured to be adapted to any thickness of follower202.

In a fourth step, the first handle110is presented at a given angle (here 45°) with respect to the square spindle120. Then the first handle110is inserted on the mounted square spindle as illustrated inFIG.89. In this position, the first handle110slides freely on the square spindle120and can be brought to abut on the base plate156.

In a fifth step shown inFIGS.92,93, the first handle110is rotated which makes it possible to mate the relief112aor112bof the insert130to with the relief121of the square spindle120. This step corresponds to the securing configuration of the first handle110.

According to a characteristic of the invention, a latch system (not shown) makes it possible to lock the rotation of the first handle, so that it can be manipulated to control the opening leaf200and thus without ever leaving its engaged position. Moreover, it is possible to use a handle assembly100intended to be used on an opening leaf of the window type or an opening leaf of the door type. To this end, it is necessary to offset the orientation of the first handle110by an angle of 90° at the moment of its insertion on the door.

As illustrated inFIG.84, the two complementary reliefs112a,112bof the insert make it possible to assemble the same first handle in two opposite directions as required, and as a function of the direction of rotation of the first handle during the fifth step illustrated inFIGS.92,93. According to the invention, in the absence of one of the reliefs112aor112b, the locking phase of the first handle110only operates in one direction, but this does not thereby limit it in use.

FIGS.94to99illustrate the principle of two reliefs112a,112bof the insert130. InFIGS.94and95, the relief121of the square spindle120is engaged with the first complementary relief112a. InFIGS.96and97, the relief121of the square spindle120is positioned between the two reliefs112a,112bin a space without a relief112c. InFIGS.98and99, the relief121of the square spindle120is engaged with the second complementary relief112b.

Regardless of the embodiment of the handle assembly100according to the invention, said assembly can integrate a handle return system170as illustrated inFIGS.29to43. Advantageously, the return system170is applied on the first handle110of the handle assembly100.

In the first embodiment and in the second embodiment of the return system170, the latter comprises an expansive base plate171, an expansion cam172and a return spring173.

The parts common to the two first embodiments will now be described.

The expansive base plate171is in the shape of a disk comprising a front portion turned towards the first handle110and a back portion turned towards the second handle101and/or the opening leaf200in the case of a handle assembly100having a single handle. The back face of the base plate comprises a plurality of elastically deformable blades174arranged around a central orifice175. Preferably, the expansive base plate171comprises three blades174arranged regularly around the orifice175. The blades174each have a curved shape, for example in the shape of a wave one end of which is curved forming a hook like a spear176. The blades174extend over their thickness i.e. over the segment tangential to the central orifice175. The blades are configured to extend radially from the central orifice175when the latter are stressed.

The expansion cam172is in the shape of a ring or a cylinder. The expansion cam172comprises a front portion on which a drive spur177is positioned, the drive spur177being intended to cooperate with the insert130. More particularly, during the rotation of the first handle110, the stop spur139of the insert130abuts against the drive spur177so as to allow the driving of the cam. The expansion cam172is shaped to interlock in the expansive base plate171and more particularly to cooperate with the expansive base plate171. In addition, the expansion cam172comprises a back portion on which a plurality of projections178are arranged. Preferentially, the back portion of the cam comprises three projections178. The projections178are regularly distributed and arranged around a central through orifice179. The projections178are in the shape of progressive ramps in one and the same direction of rotation about a longitudinal median axis A-A of the expansion cam172. The projections178are provided at one end with a stop178a, preferentially rounded, which is shaped to cooperate with the blades174. During the assembly of the return system170, the centering orifice175of the expansive base plate171is substantially concentric with the central orifice179of the expansion cam172. Furthermore, at least the back portion of the expansion cam172is integrated between the blades174without stressing them.

The spring173of the return system170is preferably in the shape of a spiral with at least one coil. The spring173comprises a first end173ashaped to cooperate with the expansive base plate171. The expansive base plate171comprises a recess for receiving said first end173aof the spring173intended to ensure the secure support of the end173aof the spring with the expansive base plate171.

Of course, the spring can have any known shape making it possible to fulfil the same function, such as a tension or compression spring.

The spring173comprises a second end173bshaped to cooperate with the first handle110. In the embodiment shown inFIG.29, the adapter140comprises a recess141for receiving said end173b. Other embodiments are possible by arranging the recess for receiving the end173bof the spring173in elements of the handle assembly100that are mobile with respect to the expansive base plate, such as for example the insert130or the body of the handle110.

In order to mount the handle assembly100according to the invention equipped with a return system170according to any one from the first embodiment and the second embodiment, on an opening leaf200, the following steps illustrated byFIGS.21to28are followed.

InFIGS.21and22the positioning of the second handle101of the handle assembly100on the opening leaf200is illustrated. As can be seen, the square spindle120is already installed on the second handle101. The second handle101is mounted on the opening leaf200so that its grip portion is substantially horizontal. Several fastening systems can be used to fix the second handle101to the opening leaf, in the example illustrated inFIG.22, an adhesive arranged on a face of the rose equipping the second handle101is used.

InFIG.23, the first handle110of the handle assembly100is presented opposite the orifice of the opening leaf200and opposite the square spindle120projecting from the opening leaf200. The grip portion113of the first handle110is oriented along a substantially vertical axis.

InFIGS.24,32,33and34, the first handle110is positioned against the opening leaf200by being fitted on the projecting square spindle120. Preferably, the rose102of the first handle110comprises an adhesive on one face allowing the positioning of the first handle110on the opening leaf200. As can be seen inFIG.34, the projections178are abutted against the spear-shaped ends176, said ends being radially withdrawn with respect to the opening leaf aperture203.

InFIGS.25and35, the first handle110is rotated by a first angle of rotation (approximately 45°). This first rotation makes it possible to bring the stop spur139arranged on the insert130into contact with the drive spur177of the expansion cam172.

InFIGS.26,36and37, the rotation of the first handle110is continued by a second angle of rotation (approximately 45°) in the same direction of rotation as inFIG.25, so that the grip portion113is substantially horizontal. In this position, the clamp142is locked and the expansion cam172is driven so that the latter and in particular the projections178press against the spear-shaped ends176of the blades174which are partially deployed in the aperture203of the opening leaf200, penetrating the opening leaf200, as illustrated inFIG.37. Once the spears176are partially deployed, the first handle110is partially secured to the opening leaf200and the return system170is ready to be used.

During the first use of the handle110, the grip portion113is substantially inclined at 45° to the horizontal as illustrated inFIG.27. In this position, the expansion cam172is driven so that the latter and in particular the projections178press against the spear-shaped ends176of the blades174which are fully deployed in the aperture203of the opening leaf200, as illustrated inFIG.39. Once the spears176are fully deployed, the first handle110is fully secured to the opening leaf200.

During the return of the grip portion113to the horizontal position, the cam178is not driven and remains fixed in position, maintaining the spears176in anchoring position in the aperture203.

The first handle110is actuated downwards as illustrated inFIGS.27,38,39i.e. in the same direction of rotation as for the assembly and the deployment of the spears176. The return system170returns the first handle110to horizontal position as illustrated inFIG.28as illustrated inFIGS.28,40and41.

In the first embodiment, the expansive base plate171is made in a single piece. In addition, the latter171comprises an immobilizing pin171apositioned on a face opposite the face having blades174. The immobilizing pin171ais configured to abut against the drive spur177of the expansion cam during the rotation of the first handle110as can be seen inFIGS.38and40.

In the first embodiment, the spring173only comprises one coil.

In the first embodiment, the blades174of the expansive base plate171are oriented towards the second handle101.

In the first embodiment, the solutions implemented aim to make it possible to compensate any possible defects of concentricity between the aperture203arranged in the door and the latch mechanism201in which the square spindle120will be mounted. To this end, the diameter of the cavity179is substantially greater than the diameter in which the square spindle120lies so as to offer an assembly tolerance. In this first embodiment, the expansive base plate171is intended to receive the return spring173on an area situated outside the aperture203. The geometry of the drive pin177is provided to allow its actuation by the stop spur139in the whole of the permitted tolerance range, which is for example +/−1.6 mm.

In the second embodiment, the return spring function and a catch mechanically reinforcing the hold of the first handle110on the opening leaf200is directly integrated in the opening leaf aperture203.

In the second embodiment, the expansive base plate171is formed of two separate parts free in rotation one with respect to the other, and connected to one another by the spring173. Thus the expansive base plate171comprises an expanding ring180and an attachment hub of the spring181. The expanding ring180is positioned around the attachment hub of the spring181in assembled configuration.

In the second embodiment, the blades174of the expansive base plate171are oriented towards the first handle110.

In the second embodiment, the end173aof the spring173cooperates with a portion of the attachment hub of the spring181and the end173bcooperates with the expanding ring180.

Of course, the invention is not limited to the embodiments described and shown in the attached figures. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of equivalent techniques, without however exceeding the scope of protection of the invention.

In particular, other modes of securing the base plate with the opening leaf can be envisaged, in particular by making use of principles of the expansion bolt type (Molly bolt for example). In this case the movement of the handle in rotation about the square spindle would drive expansion by screwing compression.

Another mode would consist of carrying out direct screwing of the base plate by means of a suitable thread arranged on the outer body of the tubular portion of the base plate entering the aperture203in order to secure the base plate with the opening leaf during the movement in rotation for securing the handle to the square spindle.

Of course, the different characteristics, forms, variants and embodiments of the invention can be combined with one another in various combinations, provided that they are not incompatible or mutually exclusive.