FR3101096A1 - Window frame control device - Google Patents

Abstract

Window frame control device, French-style, Italian-style, sliding or tilt-and-turn, comprising a cremone bolt with nut controlled by a square-section control rod, and a control rod operating handle. The control rod (4) comprises a rear stop (8) resting on the rear face of the follower, and a notch (9) receiving a screw for fixing the operating handle (18). An autonomous indexing device (14) is placed on the control rod (4), between the window frame and the operating handle (18), consisting of a fixed ring (15), a ring of indexing (16) and a spring (17). Figure for the abstract: Fig. 7

Description

Control device for window frame

The invention relates to a control device for a window frame, opening in a French, Italian, sliding or tilt-and-turn fashion, the frame comprising a cremone bolt with a follower controlled by a control rod with a square section and an operating handle of the control rod.

Windows with a French-style, Italian-style, tilt-and-turn or sliding opening frame, in their most common form, have a system generally consisting of a locking rod, equipped with rollers or bolts, which moves in translation relative to the opening frame, and latches fixed to the fixed frame, these elements, rollers or bolts and latches cooperating with each other ensuring the locking and sealing of these windows.

Most frequently, the translational movement of this locking rod is ensured by means of a device called a cremone bolt consisting of an outer box fixed on the wall to the opening frame of the window and provided with a handle serving as an interface with the user.

In general, this cremone bolt consists of a pinion/rack mechanism, the pinion being integral with the operating handle while the rack is integral with the locking rod of the sash via a coupling system with this one. Such a cremone bolt therefore makes it possible, by rotating the handle, to actuate the locking rod in translation: a rotation of the handle is necessary for the unlocking/locking of the window opening on the French side, on the Italian side or sliding and a rotation an additional several degrees allows the tilt-and-turn opening of the window. The position of the handle is generally indexed every 90°. This indexing system is integrated into the casing of the cremone bolt.

The disadvantage of such a espagnolette is that because of the pinion/rack system and the indexing, it is relatively bulky and therefore unattractive and uneconomical.

There is an alternative by locking rod drive mechanisms mounted inside the sash of the window which makes them invisible when the window is closed and locked. These mechanisms include a casing fixed inside the sash of the window. Inside this case there is a pinion/rack system where the rack is integral in translation with the locking rod carrying the rollers or the bolts and the pinion called follower serving as a drive for the rack. The follower is generally guided in the housing of the mechanism and is provided with a square hole allowing it to be driven by means of a square rod attached to a handle serving as an interface with the user. Such hidden mechanisms are often operated by a handle mounted on a plate, equipped with a square rod driving the follower of the said cremone bolt. This handle on plate is fixed to the cremone bolt through the opening frame of the window by means of 2 screws with a fixing center distance of generally 43 mm. This device is more discreet because the handle plate simply serves to fix it to the cremone bolt and index the handle every 90°. Nevertheless, there remains a plate under the handle, relatively high and thick to hide the fixing screws to the locking mechanism and three machining operations are necessary for the passage of the 2 fixing screws and the square drive rod.

To eliminate some of the drawbacks linked to the size of the plate, similar handle systems have appeared on the market with a reduced plate without a 90° indexing system which is partially or partially transferred to the cremone bolt and with a Fixing center distance less than 43 mm, therefore more discreet, improving the aesthetics of the window. Despite everything, these handles on a reduced plate, given their specificities, must be associated with a cremone bolt from the same manufacturer.

The aim of the invention is to remedy all of these drawbacks by proposing a handle without a plate, indexed in rotation at 90° and which can be mounted indifferently on all the cremone bolts or interior mechanisms available on the market.

The subject of the invention is a control device for a window frame, French-style, Italian-style, sliding or tilt-turn window, the frame comprising a cremone bolt with follower controlled by a square-section control rod, and a operating handle of the operating rod, characterized in that the operating rod has a rear stop resting on the rear face of the follower, and a notch receiving a fixing screw of the operating handle, to ensure the connection between the operating handle and the cremone bolt follower.

According to one embodiment, an autonomous indexing device is placed on the control rod, between the frame of the window and the operating handle, consisting of a fixed ring, an indexing ring and a spring, to maintain by indexing the operating handle in its opening and closing positions of the window frame.

According to one embodiment, the fixed ring comprises a circular support plate on the face of the frame, carrying on one side a tubular element of square section that can be inserted into a square machining of the face of the frame, on the other side of the pads bordered by inclined ramps, and a cylindrical axial opening.

According to one embodiment, the studs are arranged at 90° to each other.

According to one embodiment, the indexing ring comprises a cylindrical crown having on one side a bearing surface for the spring, and on the other side a relief complementary to the studs of the fixed ring.

According to one embodiment, the indexing ring comprises a cylindrical central part having an axial passage of square section corresponding to the square section of the control rod.

According to one embodiment, the cylindrical central part of the indexing ring, on one side is inserted into the cylindrical axial opening of the fixed ring, and on the other side ensures the guiding of the spring.

According to one embodiment, the operating handle has successively and coaxially a first bore to receive the indexing ring, a second smaller bore to receive the spring, and a square section hole to receive the control rod.

According to one embodiment, the notch is V-shaped; the external face of the profile receiving the fixing screw of the operating handle on the control rod, the screwing ensuring the movement of the handle towards the face of the frame and a preload of the spring.

According to one embodiment, the square section control rod comprises, at its end bearing the rear stop, a side face, opposite to the rear stop, having an inclined ramp to ensure the insertion of said end in the axial passage of square section of the follower.

According to one embodiment, the square section control rod is made up of two juxtaposed parts, each of rectangular section and having its inclined face juxtaposed to the rear abutment of the other.

The invention is described with reference to the accompanying drawings in which:

is an exploded view of a window jamb with perspective view, left view and top view;

is a view of an exemplary embodiment of a square section control rod according to the invention;

shows in three views the positioning of the control rod of FIG. 2 in the cremone bolt follower;

is analogous to Fig. 3 with a control rod in two juxtaposed longitudinal parts to achieve the square section;

is an exploded view of the 90° indexing device in perspective view from the left;

is a perspective view from the right of the device of FIG. 5;

is an exploded view of the operating handle, the indexing device and the square-section control rod according to the invention;

is a view similar to FIG. 7 in the case of a two-part control rod;

is a cross-sectional view of the handle and of the 90° indexing device before installation on the control rod;

is a sectional view of the handle and the 90° indexing device after positioning on the control rod;

is an exploded view showing the positioning of the control rod in the window pillar before positioning the 90° indexing device and the handle;

is a view similar to FIG. 11 showing the positioning of the 90° indexing device on the control rod;

is a view of the window jamb after positioning the operating handle in the window open position;

is a view of the window jamb with the operating handle in the closed window lock position.

In Fig. 1, the frame 1, opening or sliding, of a window is symbolized by its amount, inside which is arranged a cremone bolt 3 to ensure the locking of the window in the closed position. The cremone bolt comprises a follower 3' with axial passage of square section to receive a square section control rod 4 ensuring the rotational drive of the follower for the operation of the espagnolette 3 with a view to closing, opening, or setting the window in tilt-and-turn position. The upright of the frame 1 has, on its face 23 accessible from the inside of the part, a machining 30 of square section for the passage of the control rod 4.

In Fig.2, the control rod 4 of follower 3' has a square section 40. It has a front stop 7 intended to be applied to the front face 20 of the follower 3', and a rear stop 8 intended to be applied to the rear face 21 of the follower 3'. To allow the insertion of the control rod 4 in the axial passage of the follower 3', the end 5 of the rod 4 has a particular shape. The side face of the rod 4 with a square section, opposite the rear stop 8, has, beyond the front stop 7, and up to its free end, a ramp 6 inclined so that the distance between the free edge of this inclined face and the outer edge of the rear stop 8 is at most equal to the side of the square of the section 40 of the control rod 4. The angle of inclination of the inclined ramp 6 is represented in β.

Near its other end, which will remain outside frame 1 of the window, control rod 4 has a V-shaped notch 9 with an axis perpendicular to two parallel faces of rod 4.

In Fig. 3, are shown in horizontal section the upright of the frame 1, the cremone bolt 3, the follower 3' and the control rod 4 passing through the square machining 30. At the top, the insertion of the rod 4 into the follower 3' is authorized by its inclined face 6 which slides on a face of the axial passage of the follower 3' when the axis x' of the rod 4 is inclined with respect to the axis x of the follower, the rear stop 8 then being able to pass in the axial passage of the follower. In the middle, the front stop 7 of the control rod 4 comes against the front face 20 of the follower 3'. The control rod 4 is then aligned with the axis of the axial passage of the follower 3 'and, at the bottom, the rear stop 8 of the control rod 4 bears on the rear face 21 of the follower 3' and the rod 4 of control is locked in the axial position.

In the alternative embodiment of FIG. 4, the control rod 4 is replaced by a control rod 10 in two juxtaposed parts 11, 12, each of rectangular section corresponding to approximately half the square section of the control rod 4. Each of the two parts 11, 12 has a profile similar to that of the control rod 4, with an inclined face and a rear stop, on the narrow faces. The two parts 11, 12 are juxtaposed on their wide faces and traversed by a pivot pin 13 which protrudes from the two outer wide faces to form a front abutment bearing on the front face 20 of the follower 3'. The two parts 11, 12 are oriented differently, each having its inclined face juxtaposed with the rear abutment of the other. Thus, the two parts 11, 12 of the control rod 10 are angularly offset relative to each other by pivoting on the axis 13 so that their ends 5 simultaneously penetrate into the axial passage of the follower 3 ', with the inclined face of one on one face of the axial passage and the inclined face of the other on the opposite face of the axial passage of the follower.

When the axis 13 comes to bear on the front face 20 of the follower 3', the two parts 11, 12 are brought together by pivoting on the axis 13 and their longitudinal geometric axis coincides with the axis of the axial passage of the follower 3' . The rear abutment 8 of part 11 of the control rod 10 then bears behind the rear face 21 of the follower 3', and the rear abutment 8' of the part 12 of the control rod 10 bears behind the rear face of the follower, but opposite the rear stop 8, i.e. at 21'. The control rod 10 thus has two rear stops which are applied to the rear face of the follower at two opposite edges of the axial passage of the follower.

Once the control rod 4 or 10 is in position in the follower 3', and before the installation of the operating handle 18 on the control rod, the indexing device 14 of Figs. 5 and 6 is placed on the control rod. The indexing device 14 is made up of a fixed ring 15, an indexing ring 16 and a spring 17.

The fixed ring 15 comprises a circular plate 24 bearing against the outer face 23 of the window frame 1.

On its face bearing against the face 23 of the window frame 1, the circular plate 24 carries a tubular element 22 of substantially square section, of shape corresponding to the square machining 30 of the upright of the frame 1. The complementarity of form between the square machining 30 and the tubular element 22 ensures the maintenance in position of the ring 15, qualified as fixed. On its other face, the fixed ring 15 carries four studs 25 arranged on two perpendicular axes. The studs 25 thus arranged at 90° to each other protrude with respect to the circular plate 24 and are bordered by inclined ramps connecting to the circular plate 24. The fixed ring 15 has a cylindrical axial opening of section circular.

The indexing ring 16 comprises a cylindrical central part, having an axial passage 29 of square section corresponding to the square section 40 of the control rod 4 or 10. This cylindrical central part, on one side, is inserted into the axial opening of the fixed ring 15 to ensure the guiding of the indexing ring 16, and on the other side ensures the guiding of a spiral spring 17.

Around this cylindrical central part, and substantially in its middle part, the indexing ring 16 comprises a thick cylindrical crown 27 having on one side a bearing face for the spring 17 and on the other side a complementary relief of the studs 25 of the fixed ring 15. The indexing ring thus comprises recesses 26 arranged along two perpendicular axes, corresponding to the studs 25, and bordered by inclined ramps.

When the cylindrical central part of the indexing ring 16 is inserted into the cylindrical axial opening of the fixed ring 15, the recesses 26 of the indexing ring 16 bear on the studs 25 of the fixed ring 15 and the inclined ramps of the two rings apply to each other. The two rings are then indexed (Figs. 7 and 8).

The operating handle 18 (Figs. 7 to 10) has a manual control stand 2 and a hollow head cooperating with the indexing device 14 and the control rod 4 or 10. From its opening facing the upright of the frame 1 , the head of the operating handle 18 presents successively and coaxially: a first cylindrical bore to receive the indexing ring 16 and the studs 25 of the fixed ring 15; a second bore of smaller diameter, to receive the spring 17, the bottom of the bore providing support for the spring; and a hole 18' of square section intended to receive the end of the control rod 4 or 10. Perpendicular to the axis of this hole 18', and hidden by the stand 2, a threaded hole is provided to receive a screw ensuring the connection between the operating handle 18 and the control rod 4 or 10. For this purpose, on the one hand the control rod 4 or 10 has a notch 9 with a V profile, on the other hand the screw 19 has a conical tip 19' to cooperate with the outer face 4' of the notch 9 to ensure the reciprocal connection of the handle 18 with the control rod 4 or 10 and a slight preload of the spring 17. Indeed, the control rod control 4 or 10 and the fixed ring 15 being in a fixed position relative to the upright of the frame 1, the screwing of the screw 19 ensures a movement of the operating handle 18 towards the face 23 of the frame 1, the operating handle 18 coming practically in contact with the circular plate 24 of the fixed ring 15, that is to say in the immediate vicinity of the outer face 23 of the frame 1 of the window.

The installation of the screw 19 and its screwing are ensured by means of a tool 31 (Fig. 10).

Figs. 11 to 13 show the operations for installing the operating handle according to a variant embodiment in which the indexing device 14 is placed on the control rod 4 or 10 before being covered by the operating handle 18 The operation is shown with the operating handle in the horizontal position corresponding to the open position of the window sash, which facilitates the insertion of the screw 19 and its tightening by means of the tool 31. The operating handle is shown vertically in Fig. 14, corresponding to the closed and locked position of the window.

Starting from the closed position of the window (Fig. 14), the maneuver of the maneuver handle 18 by a quarter turn, to arrive at the open position causes in the head of the maneuver handle: the progressive rotation the control rod 4 or 10, driven by the square section hole 18'; progressive rotation of indexing ring 16 and follower 3'; the gradual sliding of the ramps framing the recesses 26 of the indexing ring on the ramps framing the studs 25 of the fixed ring 15, accompanied by the compression of the spring 17; the crossing of the studs 25 by the relief of the indexing ring separating the hollows 26; the relaxation of the spring 17 ensuring the return to the initial relative position of the rings 15 and 16 (indexing) after rotation of a quarter turn. The correlative rotation of the follower 3' by a quarter turn ensured the release of the window frame by the espagnolette 3. The operating handle 18 is then in the horizontal position (Fig. 13) corresponding to the opening of the frame 1.

If the window frame 1 can be put in the tilt-and-turn position, the operation of the handle 18 on a new quarter turn, bringing it to the vertical position with the handle upwards, with a new indexing between the fixed rings and indexing, is possible.

The window frame control device according to the invention is suitable for a French, Italian, sliding or tilt-and-turn window.

It features a self-contained 90° indexing device; composed of a fixed ring relative to the window frame and a movable ring in rotation and in translation relative to the fixed ring, the two rings having shapes suitable for indexing at predefined angles of 90°; the displacement in translation being subjected to the reaction of a spring. The operating handle is integral with the operating rod of the follower of the window frame cremone bolt, and has a bearing surface for the spring.

The control rod 4 or 10 provides a connection function between the follower 3' of the espagnolette 3 and the operating handle 18. The espagnolette 3 is inside the frame 1 of the window (Fig. 1), which maintains the follower 3' in a fixed axial position. The rear stop 8 resting on the rear face 21 of the follower 3' ensures the retention of the control rod against an outward pulling force. The external inclined face 4' of the notch 9 serves as a support for the conical point 19' of the handle fixing screw 19 and, as the screwing progresses, brings the handle closer to the face 23 of the frame. 1, by compressing the spring 17 which pushes the fixed ring 15 against the face 23 of the frame 1.

The control rod 4 being held attached to the follower 3' by its rear stop 8, the operating handle 18 is held against the face 23 of the frame 1 without the need to be fixed by a plate.

Claims (11)

Control device for a window frame, opening in a French, Italian, sliding or tilt-and-turn fashion, the frame comprising a cremone bolt with a follower controlled by a control rod with a square section, and a handle for maneuvering the control, characterized in that the control rod (4) comprises a rear stop (8) resting on the rear face of the follower (3'), and a notch (9) receiving a screw (19) for fixing the handle handle (18), to ensure the connection between the handle (18) and the follower (3') of the espagnolette (3). Control device according to Claim 1, characterized in that an independent indexing device (14) is placed on the control rod (4), between the frame (1) of the window and the operating handle (18), consisting of a fixed ring (15), an indexing ring (16) and a spring (17), to maintain the operating handle (18) in its opening and closing positions of the window frame. Control device according to Claim 2, characterized in that:
- the fixed ring (15) comprises a circular support plate on the face (23) of the frame (1), carrying on one side a tubular element (22) of square section that can be inserted into a square machining (30) of the face (23) of the frame (1), on the other side of the studs (25) bordered by inclined ramps, and a cylindrical axial opening. Control device according to Claim 3, characterized in that the studs (25) are arranged at 90° to each other. Control device according to Claims 2 and 3, characterized in that the indexing ring (16) comprises a cylindrical crown (27) presenting on one side a bearing surface for the spring (17), and on the other side a complementary relief of the studs (25) of the fixed ring (15). Control device according to Claim 5, characterized in that the indexing ring (16) comprises a cylindrical central part having an axial passage of square section (29) corresponding to the square section of the control rod (4). Control device according to Claim 6, characterized in that the cylindrical central part of the indexing ring (16), on one side is inserted into the cylindrical axial opening of the fixed ring (15), and on the other side guides the spring (17). Control device according to Claims 1 and 2, characterized in that the operating handle (18) has successively and coaxially: a first bore to receive the indexing ring (16), a second smaller bore to receive the spring (17 ), and a square section hole (18') to receive the control rod (4). Control device according to Claim 1, characterized in that the notch (9) is V-shaped; the outer face (4') of the profile receiving the screw (19) for fixing the operating handle (18) to the control rod (4), the screwing ensuring the movement of the handle (18) towards the face (23 ) of the frame and a preload of the spring (17). Control device according to Claim 1, characterized in that the square-section control rod (4) comprises, at its end bearing the rear stop (8), a lateral face, opposite the rear stop (8), presenting a ramp inclined (6) to ensure the insertion of said end in the axial passage of square section of the follower (3 '). Control device according to Claim 10, characterized in that the square section control rod (4) is made up of two juxtaposed parts (11, 12), each of rectangular section, and having its inclined face juxtaposed to the rear stop of the 'other.