FR2882086A1 - OPENING-CLOSING MECHANISM OF A WINDOW DOOR OR DOOR COMPARTMENT, DOOR, GATE, ETC., AND SHUTTER, DOOR, GATE, ETC HAVING SUCH AN OPEN-CLOSING MECHANISM - Google Patents

Abstract

The invention relates to an opening-closing mechanism (4) for a shutter, door or gate flap comprising a first tooth sector (19) having a first axis (16) around which a driving spindle (15) can rotate. ), a second toothed sector (20) rotating about a second axis (18) and meshing with the first toothed sector (19), an actuating member (9) connected on the one hand to this second tooth sector (20) and on the other hand said shutter, door or gate flap, a driving device (8) for driving the driving spindle (15), and a support (7) by means of which the opening-closing mechanism ( 4) can be fixed in the vicinity of the window, door or gate (1). This opening-closing mechanism (4) is remarkable in that the first tooth sector (19) which is fixed, and the second tooth sector (20) are of the cylindrical type, that the driving shaft (15) has an eccentric (17) centered on the second geometric axis (18) parallel to the first geometric axis (16), and on which is guided in rotation the second toothed sector (20). The invention also relates to a shutter, a door or a gate provided with such an opening-closing mechanism.

Description

2882086 1

Description

  The present invention relates to the general technical field of building closures or fences, and in particular to the field of opening-closing mechanisms of shutters, doors or gates.

  Such opening-closing mechanisms are for example described in US 1,676,064, FR 2 435 588, FR 2 646 202, FR 2 717 216, FR 2 773 193 and EP 1 091 071.

  More specifically, the present invention relates to a closing mechanism closing a flap flap of a window or door, a door, a door, etc. comprising: - a first toothed sector having a first geometric axis, - a driving shaft rotating substantially around this first geometric axis, - a second toothed sector rotating about a second geometric axis and meshing with the first toothed sector, - an organ maneuvering directly or indirectly linked to the second toothed sector and connected to the flap flap, door, gate or the like, - a driving device for driving the driving shaft, and - a support through which the mechanism Closing is fixed in the vicinity of the window, door, gate, etc. Such an opening-closing mechanism is described in US 1,676,064.

  This known opening-closing mechanism has a first toothed sector in the form of a conical pinion, and a second toothed sector in the form of a conical crown. The bevel gear is fixed on a driving shaft which is guided in rotation in a support bearing so as to be rotatable about its longitudinal axis (first geometric axis). At its other end, this driving shaft is in driving connection with a motor via a flexible coupling and a worm and worm gear (drive device). The conical crown, meanwhile, rotates about a second geometric axis which is substantially perpendicular to said first geometric axis. A rotatable crank arm is attached indirectly to the conical rim so that the rotation of the rim causes the rotation of the corresponding crank arm about the second geometric axis. At its other end, the rotating crank arm is provided with a roller which is intended to roll in a groove fixed to the sash whose opening-closure must be controlled with said mechanism.

  This opening-closing mechanism has the disadvantage of being very bulky so that it is very difficult to implement, except to provide an important space to fix it. In addition, it requires some manufacturing precision for the tapered torque to function properly.

  The object of the present invention is to overcome this disadvantage and to provide a relatively compact opening-closing mechanism while allowing operation of a flap of a window or door flap, a door, a gate etc. without having to exert a very important effort.

  For this purpose, the opening-closing mechanism of a flap flap of a window or door, a door, a gate, etc. according to the present invention is characterized in that: - the first toothed sector and the second toothed sector are toothed sectors of the cylindrical type, the first toothed sector is fixed, - the driving axis has an eccentric substantially centered on the second axis geometrically and on which is guided in rotation the second toothed sector, and - this second geometric axis is substantially parallel to the first geometric axis.

  Thanks to the use of cylindrical toothed sectors, the opening-closing mechanism is very compact. In addition, since these cylindrical toothed sectors and the axis leading with its eccentric form a planetary reducer, the opening and closing of the shutter flap of window or door, the door, the gate, etc. does not require a major effort. Moreover, this planetary reducer is irreversible, that is to say that said flap of window shutter or door, said door, said gate, etc. may be pivoted by an action of the driver, but not by an action on said window or door flap, said door, said gate, etc. As a result, the window or door shutter door, door, gate, etc. remains exactly in the position in which the user leaves it (closed position, open position or any intermediate position).

  Other features of the invention, to be considered separately or in all their possible combinations, will become apparent in the following description of some nonlimiting exemplary embodiments of the invention shown in the accompanying drawings, in which: FIG. perspective view of a window portion with a flap leaf whose opening and closing are intended to be controlled by an opening-closing mechanism according to the present invention; FIG. 2 represents a schematic view of said opening-closing mechanism according to the invention; - Figure 3 shows a sectional view along the plane III-III (Figure 4) of a first embodiment of said opening-closing mechanism 15 according to the invention; FIG. 4 represents a bottom plan view of this first embodiment of an opening-closing mechanism; FIG. 5 represents an exploded perspective view of this first embodiment of an opening-closing mechanism; - Figure 6 shows said window with the shutter flap in the closed shutter position; - Figure 7 shows said window with the shutter flap in the open flap position; FIG. 8 represents a sectional view, similar to FIG. 3, of a second embodiment of an opening-closing mechanism according to the invention; FIG. 9 represents an exploded perspective view of this second embodiment of an opening-closing mechanism; FIG. 10 represents a sectional view, similar to FIG. 3, of a third embodiment of an opening-closing mechanism according to the invention; FIG. 11 represents an exploded perspective view of this third embodiment of an opening-closing mechanism.

  FIG. 1 represents, in perspective view, a window portion (1) of which only the door (2) is shown, as well as a flap door (3) and its opening-closing mechanism (4) according to FIG. the present invention, for controlling the opening and closing of said shutter flap (3). The shutter flap (3) is connected to the wall by means of hinges (5), while its opening-closing mechanism (4) is fixed here on the lintel (6) of the window (1) by means of fixing elements (30 ') known, such as screws for example.

  This opening-closing mechanism (4) is externally in the form of a housing (7) with on the one hand a driving device (8) and on the other hand an actuating member (9) of the leaf shutter (3). The driving device (8) here comprises in particular an endless drive member (10) which passes through the frame (2) of the window (1) so that it can be operated from inside the building. This endless drive member (10) will be described in more detail later. The operating member (9) of the flap flap (3) is in the form of a rotatable crank arm (11) which has at its free end a finger (12) intended to slide in a guide (13) ( a groove for example) fixed to the flap flap (3), preferably on the upper edge of said shutter flap (3). This finger (12) can also be a roller (not shown) which would roll in said guide (13). By operating the endless driving member (10) in one direction, the rotatable crank arm (11) is rotated in the direction of opening of the flap flap (3), and by operating said drive member. endlessly (10) in the other direction, said rotatable crank arm (11) is pivoted in the closing direction of said shutter flap (3).

  This opening-closing mechanism (4) also comprises a gear reducer (14) (Figure 2) for transmitting the movement of the endless drive member (10) to the rotating crank arm (11). This gear reducer (14) which will be described in more detail below, is dimensioned so that the shutter flap (3) can be opened and closed without having to exert too much tensile force on the body of endless training (10).

  2882086 5 In Figure 2, we see that gear reducer (14) comprises: - a driving shaft (15) guided in rotation in the housing (7) so as to be rotatable about a first geometric axis (16) said driving axis (15) having an eccentric (17) centered on a second geometric axis (18) substantially parallel to said first geometric axis (16); - a first gear (19) fixed relative to the housing (7) and centered on the first geometric axis (16); and - a second gear (20) meshing with the first gear (19) and guided in rotation on the eccentric (17) of the driving shaft (15) so as to be freely rotatable about the second geometric axis (18) .

  The driving shaft (15) is in driving connection with the driving device (8) which also comprises a driving wheel (21) on which the endless drive member (10) is wound so that the endless driving member (10) can drive said driving wheel (21) when said endless driving member (10) is operated by an operator inside the building. The second gear (20), meanwhile, is fixed to the actuating member (9) of the shutter flap (3), in this case here the rotating crank arm (11).

  The opening-closing mechanism (4) according to the invention which has just been described in the light of the diagram of FIG. 2, operates in the manner described hereinafter. For this, we look at the opening-closing mechanism (4) from above on the arrow (22).

  By operating the endless drive member (10) along the arrow (23), the drive wheel (21) and the drive shaft (15) and its eccentric (17) rotate clockwise about the first axis geometric (16). In doing so, the eccentric (17) moves the second gear (20) about said first geometric axis (16) also clockwise. As a result, the second gear (20) then rotates about the second geometric axis (18) counterclockwise as it meshes with the first gear (19) which is fixed. As the second gear (20) is fixed to the actuating member (9) of the flap flap (3), this actuating member (9) will also rotate counterclockwise which is the direction of closure (24) of said flap flap (3).

  2882086 6 By operating against the endless drive member (10) according to the arrow (25), the driving wheel (21) and the driving shaft (15) and its eccentric (17) rotate in the anti direction -clock around the first geometric axis (16). In doing so, the eccentric (17) moves the second gear (20) around said first geometric axis (16) also in a counter-clockwise direction. As a result, the second gear (20) then rotates about the second geometric axis (18) in a clockwise direction and will rotate the operating member (9) in the direction of the opening (26) of the shutter flap (3).

  This opening-closing mechanism (4) is intended to manipulate the flap flap (3) right (for an observer in the building and looking through the window (1)). It will be understood, of course, that for the flap flap (3) left, the corresponding opening-closing mechanism (4) will have a rotating crank arm (11) which will be mounted in the opposite direction and the arrow (24) will correspond in the sense of the opening of said shutter flap (3) left, while the arrow (26) will correspond to the closing direction of said shutter flap (3) left.

  Various embodiments of opening-closing mechanisms (4) according to the invention are described below.

  The various identical elements that constitute these exemplary embodiments of opening-closing mechanisms (4) will be described only once and will keep the same reference number throughout the description.

  These embodiments of opening-closing mechanisms (4) also include a number of similar elements with respect to their function (s). These similar elements will be assigned the same reference number followed by the letter A (Figures 8 and 9) and B (Figures 10 and 11).

  Figures 3 to 7 show a first embodiment of an opening-closing mechanism (4) of a shutter flap (3). The housing (7) of this opening-closing mechanism (4) comprises an upper plate (27), a lower plate (28) and a spacer plate (29) extending between said upper plate (27) and said plate lower (28). The upper plate (27), the lower plate (28) and the spacer plate (29) are fixed together by means of fasteners (not shown) so that the assembly is removable (screw for example) or non-removable ( crimping or riveting for example).

  The upper plate (27) has through-holes (30) (Fig. 5) for fastening elements (30 ') for attaching the opening-closing mechanism (4) to the lintel (6) of a window (1) if it is an opening-closing mechanism of a shutter flap (3) of a window (1). The upper plate (27) additionally has a pivot (31) defining the first geometric axis (16).

  The lower plate (28) has a toothed aperture (32) defining the first gear (19) centered on the first geometric axis (16) and thus constituting an internal tooth sector, of the cylindrical type, extending here on a full circle.

  With regard to the spacer plate (29), it is also intended to serve as a guide member (33) (FIG. 5) intended to keep the endless drive member (10) on the driving wheel (FIG. 21). For this purpose, the spacer plate (29) has a circular housing (34) in which is intended to extend the drive wheel (21) which is, moreover, guided in rotation on the pivot (31) of the upper plate (27). This drive wheel (21) is a toothed wheel, while the endless drive member (10) is in the form of a ball cord (35) (FIG. 5) which is wound on said drive wheel ( 21) so as to mesh with the latter. The circular housing (34) is sized to hold the ball cord (35) on the toothed drive wheel (21). The spacer plate (29) is also provided with two through holes (36) (Figure 5) through which the endless drive member (10) passes. This endless drive member (10) is additionally provided for sliding in a sheath (37) (FIG. 5), in particular at locations where this endless transmission member (10) passes through the frame (2) of the window ( 1).

  In this opening-closing mechanism (4), the driving shaft (15) which has an eccentric (17) is made here, but not limited to, in one piece with the driving wheel (21). This eccentric (17) is centered on the second geometric axis (18) parallel to the first geometric axis (16). The first geometric axis (16) and this second geometric axis (18) are moreover substantially parallel to the axis of pivoting of the shutter flap (3) defined by the hinges (5).

  2882086 8 The second gear (20) meshing with the first gear (19), is fixed on the rotating crank arm (11): here, it is even realized, but not limited to, in one piece with said crank arm turning (11). This rotating arm assembly (11) second gear (20) is guided in rotation on the eccentric (17) of the driving shaft (15) so as to rotate freely around the second geometric axis (18). The rotating crank arm (11) and / or the second gear (20) comprise for this purpose a bore (38) whose diameter corresponds to that of said eccentric (17). This second gear (20) thus constitutes an outer tooth sector, of the cylindrical type, also extending here also on a complete circle. It is, in addition, provided a holding member (39) having a first holding member (39 ') which axially links the rotating arm assembly (II) second gear (20) to the driving shaft assembly (15). driving wheel (21), and a second retaining member (39 ") axially linking the latter together with the pivot (31), of course, this axial retention is made with the necessary operating clearance to allow the rotation of the various members intended for turn inside the housing (7).

  In this embodiment, it is advantageously provided that the number of teeth of the second cylindrical gear (20) is slightly less than the number of teeth of the first cylindrical gear (19). In fact, this ratio between the number of teeth of the second gear (20) and the number of teeth of the first gear (19) is such that the transmission ratio is advantageously between 1 / 20th and 1 / 30th. Preferably, this ratio is about 1 / 24th. In this way, the shutter flap (3) can be opened and closed without having to exert too much traction force on the endless drive member (10), in this case the ball cord (35). , while conferring on the opening-closing mechanism (4) a relatively compact size.

  The operation of this first exemplary embodiment will not be redescribed since it corresponds exactly to the operation described above in the light of the schematic view shown in FIG. 2. On the other hand, it must be added that the gear reducer (14) ) of this opening-closing mechanism (4) is irreversible, that is to say that the shutter flap (3) can be pivoted by action on the ball cord (35), but not by an action on the shutter flap (3). Thus, the shutter flap (3) remains exactly in the position in which the user leaves it (closed (FIG. 6), open (FIG. 7) or any intermediate position (one of which is represented in dashed lines). in Figure 6)).

  Figures 8 and 9 show a second embodiment of an opening-closing mechanism (4A) of a shutter flap (3).

  In this embodiment, the lower plate (28A) has a bore (40) centered on the first geometric axis (16) and in which is guided in rotation the driving axis (15A) provided with its eccentric (17A). The lower plate (28A) further comprises an outer toothed sector also centered on the first geometric axis (16). This external toothed sector, of the cylindrical type, extends here also on a complete circle and projects in the direction of the rotating crank arm (11A) forming the operating member (9A). This outer toothed sector constitutes the first gear (19A).

  The angled arm turning (11A), as for. it has an inner toothed sector centered on the second geometric axis (18). This inner toothed sector, of the cylindrical type, also extends over a complete circle and projects towards the lower plate (28A). This inner toothed sector constitutes the second gear (20A).

  The rotating crank arm (11A) further has a bore (38) in which is centered the eccentric (17A) of the driving shaft (15A). This driving axis (15A), or more precisely the eccentric (17A) thereof, comprises, at its free end, a holding member (39A) axially connecting the bent arm (11A) to this driving shaft (15A). ). The axial retention of the driving shaft (15A) in the housing (17A) is instead achieved during the assembly of the lower plate (28A) on the spacer plate (29) and the upper plate (27A). axial being formed by the driving wheel (21 A) which has a diameter greater than the diameter of the bore (40) formed in the lower plate (28A). These axial restraints are, again, made with the necessary operating clearance to allow the rotation of the various members intended to rotate inside the housing (7A).

  In this embodiment, it is advantageously provided that the number of teeth of the second cylindrical gear (20A) is slightly greater than the number of teeth of the first cylindrical gear (19A). In fact, this ratio between the number of teeth of the first gear (19A) and the number of teeth of the second gear (20A) is such that the gear ratio is, again, advantageously between 1 / 20th and 1 / 30th. Preferably, this ratio is also about 1 / 24th. In this way, the shutter flap (3) can, here too, be opened and closed without having to exert too much tensile force on the endless drive member (10), in this case the cord. balls (35), while also conferring on this second embodiment of the opening-closing mechanism (4A) a relatively compact size.

  The operation of this second embodiment will also not be redescribed since it also corresponds exactly to the operation described above in the light of the schematic view shown in FIG. 2. In addition, this gear reducer (14A ) is also irreversible, that is to say that the shutter flap (3) can again be pivoted by an action on the ball cord (35), but not by an action on the shutter flap (3) .

  Figures 10 and 11 show a third embodiment of an opening-closing mechanism (4B) of a shutter flap (3).

  In this embodiment, the second gear (20B) meshing with the first gear (19), is not fixed on the rotating crank arm (11B), but is in driving connection with it by means of coaches (41). ) cooperating with complementary shapes (42) of the rotating crank arm (11B). These drivers (41) are formed here by pins (41 ') projecting from said second gear (20B) and penetrating into holes (42') formed in the rotating crank arm (11B). These holes (42 ') are substantially centered around the first geometric axis (16) and have a dimension greater than that of the pins (41') which are themselves substantially centered on the second geometric axis (18). The second gear (20B) is further guided in rotation on the eccentric (17) of the driving shaft (15) so as to rotate freely about the second geometric axis (18). This second gear (20B) comprises for this purpose a bore (43) whose diameter corresponds to that of said eccentric (17). This second gear (20B) thus also constitutes an outer toothed sector, of the cylindrical type, also extending here also on a complete circle.

  The turnable arm (11B) is guided in rotation on the pivot (31) of the upper plate (27) so as to be freely rotatable about the first geometric axis (16). The angled arm (11B) for this purpose has a bore (44) whose diameter corresponds to that of the pivot (31). In addition, there is provided a holding member (39) which axially links the bent arm (11B) to the pivot (31). Of course, this axial retention is made, again, with the necessary operating clearance to allow the rotation of the various members intended to rotate inside the housing (7B).

  In this embodiment, it is also advantageously provided that the number of teeth of the second cylindrical gear (20B) is slightly less than the number of teeth of the first cylindrical gear (19). In fact, this ratio between the number of teeth of the second gear (20B) and the number of teeth of the first gear (19) is, again, such that the transmission ratio is advantageously between 1 / 20th and 1 / 30th. Preferably, this ratio is about 1 / 24th. In this way, the shutter flap (3) can thus, here too, be opened and closed without having to exert too much tensile force on the endless drive member (10), in this case the cord with balls (35), while conferring on this third embodiment of the opening-closing mechanism (4B) a relatively compact size.

  The operation of this third embodiment will also not be redescribed since it also corresponds exactly to the operation described above in the light of the schematic view shown in FIG. 2. In addition, this gear reducer (14B ) is also irreversible, that is to say that the shutter flap (3) can also be pivoted by action on the ball cord (35), but not by an action on the shutter flap (3).

  In these three exemplary embodiments, it can be seen that the first gear (19; 19A) extends between the driving wheel (21; 21A) of the driving device (8; 8A) and the operating member (9; 9A). 9B).

  In these three embodiments, it is an opening-closing mechanism (4, 4A, 4B) of a shutter flap (3) of a window (1). Opening-closing mechanisms (4, 4A, 4B) of this type, however, can also be used for door flaps, door leaves, gates, etc. In addition, the drive device (8) intended to drive the driving shaft (15, 15A), instead of being manual as in the examples described, could very well, in the context of the invention, be electric or other type.

  The invention also relates to a shutter, a door, a gate, etc. provided with an opening-closing mechanism according to the invention.

  It is obvious that the invention is not at all limited to the embodiments described and shown in the accompanying drawings. Modifications remain possible, in particular as regards the constitution of the various elements or their combinations, as well as by substitution of technical equivalents, without leaving the field of protection.

2882086 13

Claims (17)

claims   1. Opening-closing mechanism (4; 4A; 4B) of a flap flap (3), door or gate comprising: - a first tooth sector (19; 19A) having a first geometric axis (16) a driving axis (15; 15A) substantially rotating about this first geometric axis (16), -a second tooth sector (20; 20A; 20B) rotating about a second geometric axis (18) and meshing with the first toothed sector (19; 19A), an actuator (9; 9A; 9B) connected directly or indirectly to this second tooth sector (20; 20A; 20B) and connected to the flap flap (3), door, gate or the like, - a driving device (8; 8A) for driving the driving shaft (15; 15A), and - a support (7; 7A; 7B) through which the opening-closing mechanism ( 4; 4A; 4B) is fixed in the vicinity of the window (1), door, gate, etc., characterized in that: - the first toothed sector (19; 19A) and the second toothed sector ( 20; 20A; 20B; ) are toothed sectors of the cylindrical type, - the first toothed sector (19; 19A) is fixed, - the driving axis (15; 15A) has an eccentric (17; 17A) substantially centered on the second geometric axis (18) and on which is guided in rotation the second toothed sector (20; 20A; 20B; ), and - this second geometric axis (18) is substantially parallel to the first geometric axis (16).   2. Opening-closing mechanism of a shutter leaf, door or gate according to claim 1, characterized in that the first toothed sector (19; 19A) extends between the driving device (8). 8A) and the operating member (9; 9A; 9B).   2882086 14 3. Opening-closing mechanism of a shutter leaf, door or gate according to claim 1 or 2, characterized in that the first toothed sector (19; 19A) is carried directly or indirectly by the support (7; 7A; 7B).   4. Opening-closing mechanism of a shutter leaf, door or gate according to claim 3, characterized in that the first sector gear (19; 19A) is carried by a plate (28; 28A) that has the support (7; 7A; 7B).   5. Opening-closing mechanism of a shutter leaf, door or gate according to claim 4, characterized in that the first toothed sector (19; 19A) is directly formed in this plate (28; 28A). .   6. Opening-closing mechanism of a shutter leaf, door or gate according to any one of claims 1 to 5, characterized in that the first toothed sector (19) is an inner toothed sector, while the second toothed sector (20; 20B) is an outer toothed sector.   7. Opening-closing mechanism of a shutter leaf, door or gate according to claim 6, characterized in that the number of teeth of the second toothed sector (20; 20B) is slightly smaller than the number of teeth the first toothed sector (19), the transmission ratio being advantageously between 1 / 20th and 1 / 30th. 8. Opening-closing mechanism of a shutter, door or gate leaf according to claim 7, characterized by the fact that the support (7; 7B) has a pivot (31) substantially centered on the first geometric axis (16) and on which is guided in rotation the driving shaft (15), said pivot (31) being fixed on the support (7; 7B) on the opposite side to that where the operating member (9; 9B) extends.   9. Opening-closing mechanism of a shutter leaf, door or gate according to claim 8, characterized in that the pivot (31) comprises, at its free end, a holding member (39). ) axially linking the operating member (9; 9B) and the driving axis (15) to the support (7; 7B).   10. Opening-closing mechanism of a shutter leaf, door or gate according to any one of claims 1 to 5, characterized in that the first toothed sector (19A) is an outer toothed sector, while the second toothed sector (20A) is an inner toothed sector.   11. Opening-closing mechanism of a shutter leaf, door or gate according to claim 10, characterized in that the number of teeth of the first toothed sector (19A) is slightly less than the number of teeth of the second sector gear (20A), the transmission ratio being advantageously between 1 / 20th and 1 / 30th.   12. Opening-closing mechanism of a shutter leaf, door or gate according to claim 10 or 11 and claim 4 or 5, characterized in that the driving axis (15A) is guided in rotation in the plate (28A) carrying the first toothed sector (19A).   13. Opening-closing mechanism of a shutter leaf, door or gate according to claim 12, characterized in that the driving shaft (15A) comprises, at its free end, a holding member (39A ) axially linking the actuating member (9A) to the driving shaft (15A).   14. Opening-closing mechanism of a shutter leaf, door or gate according to any one of claims 1 to 13, characterized in that the actuating member (9B) is connected to driving with the second gear sector (20B) by means of drive means (41-42).   15. Opening or closing mechanism of a shutter leaf, door or gate according to any one of claims 1 to 14, characterized in that the operating member (9; 9A) is fixed at the second toothed sector (20; 20A).   16. Opening-closing mechanism of a shutter leaf, door or gate according to any one of claims 1 to 15, characterized in that the driving device (8; 8A) comprises a driving wheel (21; 21A) fixed on the driving shaft (15; 15A), said driving wheel (21; 21A) and said driving shaft (15; 15A) being preferably made in one piece.   Opening or closing mechanism of a shutter leaf, door or gate according to claim 16 and claim 4 or 5, characterized in that the driving wheel (21; 21A) extends on the side of the plate (28; 28A) carrying the first toothed sector (19; 9A) opposite the one where the operating member (9; 9A; 9B) extends.   Opening or closing mechanism of a flap, door or gate flap according to claim 16 or 17, characterized in that the driving device (8; 8A) additionally comprises a drive member. endless (10) winding on the drive wheel (21; 21A) which is preferably toothed, said endless drive member (10) preferably being of the balloon type (35), chain or the like.   19. Opening-closing mechanism of a shutter leaf, door or gate according to claim 18, characterized in that the endless drive member (10) slides in a sheath (37) or the like , especially at the level where said endless drive member (10) is intended to pass through the frame (2) of the window (1), the door, the gate, etc. 20. Opening-closing mechanism of a shutter leaf, door or gate according to claim 18 or 19, characterized in that the support 2882086 17 (7; 7A; 7B) comprises a guide member (33 ) surrounding the drive wheel (21; 21A) and now the endless drive member (10) on this driving wheel (21; 21A).   21. Opening-closing mechanism of a shutter leaf, door or gate according to claim 20, characterized in that the guide member (33) completely surrounds the driving wheel (21; 21A) and presents two openings (36) for the passage of the endless drive member (10).   Opening-closing mechanism of a shutter leaf, door or gate according to any one of claims 1 to 21, characterized in that the support (7; 7A; 7B) is constituted by the housing of said mechanism.   23. Shutter, door, gate, etc. having at least one leaf (3) having an opening-closing mechanism (4; 4A; 4B) according to any one of claims 1 to 22.