EP3012388B1 - Control device for door-locking mechanism - Google Patents

Description

FIELD OF THE INVENTION

The present disclosure relates to a control device for a door lock mechanism; it also relates to a locking device and a door equipped with such a control device.

Such a control device can be used to manually control, quickly and easily, a locking mechanism of different types of doors, whether indoors or outdoors, in a private setting, in business, or in public places , including when the locking mechanism is a multi-point mechanism reinforced against burglary.

STATE OF THE PRIOR ART

Due to the evolution of legislation, more and more locks combine on the same axis a key lock cylinder provided on one side of the door and a manual actuation button provided on the other side of the door.

However, the vast majority of cylinders, and especially safety cylinders, allow only one angular position to insert or remove the key: this implies that the locking mechanisms must be driven over at least one complete turn, sometimes two full turns, to be completely locked.

Therefore, the opening of a lock by a button placed in the axis of such a cylinder and mechanically linked to that, possibly via a clutch, is also done on a complete turn, or on a whole number of turns.

However, performing a full turn with a manual actuation button is not a natural movement and can be complicated for some categories of people with impaired or reduced mobility, such as the elderly or people with disabilities. Indeed, such a complete turn is not feasible in a single movement of the hand: it is then necessary to grasp, turn and release the button several times, usually three or four times, to bring the button to perform this complete turn.

So we understand that such a maneuver is long and tedious and is not suitable for certain environments, including hospitals in which patients demand simple and limited movements. More generally, the lack of comfort of such buttons is also likely to compromise the commercial interest of these mechanisms for businesses and individuals.

In addition, because of this actuation in several successive movements, there is a risk that a user does not complete the actuation and leaves the button halfway its course, which could block or damage the lock and / or the locking mechanism.

There is therefore a real need for a control device for a door locking mechanism which is devoid, at least in part, of the drawbacks inherent in the aforementioned known systems.

PRESENTATION OF THE INVENTION

The present disclosure relates to a control device for a door locking mechanism, comprising a control shaft, adapted to drive an axial rotary input of a locking mechanism, a manual actuating button, configured to be manipulated between two positions. angular extremes defining a button stroke of less than or equal to 180 °, and a transmission device coupled between the manual actuating button and the control shaft, configured so that the actuation of the button from one to the other Another of its extreme angular positions drives the control shaft over at least one revolution. According to the invention, the transmission device comprises an epicyclic gear train. Such epicyclic train ensures the desired multiplication in a particularly compact volume compatible with the size of a door knob.

According to the invention, the ring gear of the planetary gear train comprises at least one satellite stop configured to oppose the movement of at least one planet pinion. Such a stop thus makes it possible to prevent the rotation of the sun gear outside an authorized range. The risk of overtravel potentially damaging the locking mechanism is thus reduced. This also provides a stop for the first and second extreme positions of the button which are thus better defined, which reduces the risk of jamming of the adaptation mechanism and increases the ease of use of the button. With such a control device, it is possible to easily and quickly control the manual locking or unlocking of the locking mechanism of a door. Indeed, it is sufficient to rotate at most 180 ° of the button to lock or unlock the system.

Such a movement can be performed in a single movement without causing too much flexion of the wrist. We can easy and quick control of the door locking mechanism: the comfort of use of the door and its locking mechanism is then increased compared to systems requiring a complete turn of the button. The unlocking time of the door as well equipped is also reduced which allows to quickly evacuate a room in case of emergency and reduces the risk of panic likely to occur in such a case in front of a door does not unlock easily.

In addition, because of this reduced stroke of the button, it is possible to easily and quickly detect, in a single movement of the hand, the stroke stops of the button and thus to easily know the locking state of the mechanism. This avoids a floating impression of the button and thus confirm to the user that the button works properly. It also reduces the risk that a user does not leave the button in the middle of the race, inadvertently or misunderstanding of the mechanism, potentially blocking the latter for a user seeking to maneuver on the other side of the door.

In this presentation, the term "door" means any type of door or gate that may close or obstruct at least part of a passage or space: it may be a door for individuals, animals or vehicles , a window sash, a window door, furniture or any other object, to name only these examples.

In addition, in the present description, unless more precise description relating to a given embodiment, the term "manual actuation button any type of button or handle capable of being actuated in rotation manually by a user: it can thus be a simple cylindrical button, with or without gripping projections, ergonomically shaped buttons, or handles with one or more gripping rods, to name just these examples.

In some embodiments, the manual actuation button is constrained to move between its two extreme angular positions.

In some embodiments, the maximum stroke of the manual actuation button is less than or equal to a quarter turn or even less than or equal to one sixth of a turn. It is preferably a quarter turn, or 90 °, or a sixth of a turn, or 60 °. Such particularly reduced strokes make it possible to perform a gesture of very small amplitude, requiring very little wrist. The actuation of such a button is even more comfortable, especially for people who are weak or have certain disabilities.

In some embodiments, actuating the knob toward each other from its extreme angular positions drives the control shaft one revolution or two turns exactly. This makes it possible to adapt the control device to certain locking mechanisms requiring continuous drive on a lathe, or sometimes two, and in particular to the cremone locking mechanism described by the applicant in the French patent application. FR 2 930 582 .

In certain embodiments, the transmission device is a multiplication device having a transmission factor of at least 4, preferably equal to 4, or at least 6, preferably equal to 6. Such a multiplication device is then able to completely drive the locking mechanism despite a reduced stroke of the manual actuation button.

In some embodiments, the epicyclic gear train comprises a fixed ring gear, a sun gear coupled to the control shaft, two planet gears rotating between the sun gear and the crown gear, and a planet carrier bearing the axes of the planet and solid gears. the manual actuation button. Such a configuration makes it possible to obtain a high transmission ratio, of the order of 4 for example.

In some embodiments, the epicyclic gear ring comprises two diametrically opposed satellite stops.

In some embodiments, the control device further comprises a support plate to which the transmission device is attached, and the manual actuation button comprises a front plate and a cylindrical sleeve, the cylindrical sleeve surrounding the transmission device. and flush with the support plate. This gives a highly integrated button, reduced in size, and aesthetic. This face plate may in some cases be provided with gripping projections or a conventional handle.

In some embodiments, the ring gear of the planetary gear train is mounted on the support plate, and the faceplate of the manual operation button is attached to, or integrally formed with, the planet carrier of the epicyclic gear train. In particular, the configuration in which the front panel of the button constitutes the carrier is particularly compact.

In some embodiments, the controller further includes a second controller coupled to a second end of the drive shaft. It may in particular be a cylinder, in particular a safety cylinder, a second manual actuating button or any other type of drive member such as a square lock or triangle. It is thus possible to control the locking mechanism on either side of the door. In addition, thanks to the transmission device, the second member may be of the type drivable over a complete revolution without affecting the stroke of the manual actuation button.

In some embodiments, the control device is part of a cylindrical volume whose radius is less than or equal to 50 mm, preferably less than or equal to 40 mm.

The present disclosure also relates to a locking device for a door, comprising a locking mechanism of the espagnolette type comprising an input pinion, and a control device according to any one of the preceding embodiments of which the control shaft is coupled to the input gear of the locking mechanism.

This locking mechanism can in particular be a multi-point mechanism reinforced against burglary, and in particular a mechanism of the type described by the applicant in the French patent application FR 2 930 582 .

The present disclosure also relates to a door comprising a door panel, a hollow tubular-type handle, extending over the entire height of the door panel and mounted on the panel with spacers, a locking mechanism the cremone type housed in the handle, and a control device according to any one of the preceding embodiments, housed in a lock spacer connecting the handle to the door panel.

In some embodiments, the door panel is a glass panel.

In some embodiments, the diameter of the lock spacer is less than or equal to 50 mm, preferably less than or equal to 40 mm.

The above-mentioned characteristics and advantages, as well as others, will appear on reading the following detailed description of embodiments of the device and the method proposed. This detailed description refers to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are schematic and are intended primarily to illustrate the principles of the invention.

• La FIG 1 est un plan en coupe d'un dispositif de commande selon l'invention.
• La FIG 2 est une vue en coupe transversale du dispositif de transmission de la FIG 1.

In these drawings, from one figure (FIG) to the other, identical elements (or element parts) are identified by the same reference signs.

• The FIG 1 is a sectional plane of a control device according to the invention.
• The FIG 2 is a cross-sectional view of the transmission device of the FIG 1 .

DETAILED DESCRIPTION OF EXAMPLE (S) OF REALIZATION

In order to make the invention more concrete, an exemplary control device is described in detail hereinafter with reference to the accompanying drawings. It is recalled that the invention is not limited to this example.

The FIG 1 partially illustrates a door 1 equipped with a locking mechanism 10 and a control device 20 thereof. The door 1 comprises a door panel 2, preferably made of glass, on which are mounted on each side of the panel 2, handles 3a, 3b. Each of these handles 3a, 3b is tubular, hollow, and extends vertically over the entire length of the door panel 2; they are fixed on the panel 2 by means of suitable fixing spacer. In particular, the handles 3a, 3b are fixed to the panel 2 in the middle of the door by means of a lock spacer 4 40 mm in diameter.

The locking mechanism 10, housed in the first handle 3a, is for example a cremone mechanism of the type described in the French patent application. FR 2 930 582 filed by the plaintiff. Such a locking mechanism 10 comprises an input gear 11, centered on the axis A of the lock spacer 4, driving, via a mechanism not shown for simplification purposes, upper and lower cremone rods 12 13 provided with each at their end of a bolt extending, when the door is closed, facing a strike provided on the ground, the ceiling, or on the door frame. The central portion of the input gear 11 is recessed, this recess forming a multilobular coupling cavity. This locking mechanism moves from an unlocked state, in which the bolts are retracted into the thickness of the handle 3a, to a locked state, in which the bolts are fully deployed, and vice versa, driving the input pinion. 11 on a complete turn in one direction or the other.

This locking mechanism 10 is controlled by means of a control device 20 housed essentially in the lock spacer 4 or in its extension. This control device 20 comprises a control shaft 21, extending along the axis A of the lock spacer 4, engaged in the multilobular coupling cavity of the input gear 11. This cavity shape, presenting lobes projecting circumferentially inside the cavity, is known to allow the transmission of a high torque.

The control device also comprises a safety cylinder 22 with axial output mounted in the thickness of the second handle 3b in the axis of the lock spacer 4. Such a safety cylinder 22, known elsewhere, makes it possible to rotating a cylinder shaft 23 when a corresponding key is introduced and rotated in the cylinder 22: conventionally, the rotation of the key and the cylinder shaft are then synchronized.

A transmission shaft 24 extends within the lock spacer 4 on either side of the panel 2 through a hole 5 formed in the panel 2 and optionally equipped with a sleeve 6 forming a bearing. This transmission shaft 24, coupled to the cylinder shaft 23 on the one hand and to the control shaft 21 on the other hand makes it possible to transmit the rotation of the key from the cylinder 22 to the control shaft 21: the key engaged in the cylinder 22 is thus capable of driving the locking mechanism 10.

On the other side of the door, on the side of the handle 3a housing the locking mechanism 10, the control device comprises a manual actuating button 28 in the form of a cylindrical sleeve 28a closed at the front by a front plate 28b and thus forming a cavity 28c.

An epicyclic gear train 30 is fixed on a support plate 29 which is here an end wall of the lock spacer 4; it is further housed within the cavity 28c formed by the button 28, the end of the cylindrical sleeve 28a then flush with the support plate 29.

As is best seen on the FIG 2 , this epicyclic gear train 30 comprises a sun gear 31, rotating about the axis A, a fixed ring gear 32 and two planet gears 33, diametrically opposite each other with respect to the sun gear 31 and rotating between the pinion solar 31 and the crown 32.

The role of the planet carrier of this planetary gear train 30 is played by the button 28 whose inner face of the front plate 28b is provided with two diametrically opposed rockets 35 on which are mounted the planet pinions 33. The solar pinion 31 is it is coupled to the control shaft 21 while the ring 32 is fixed to the support plate 29 and can not rotate. The ring 32 also comprises, on its outer peripheral surface, spring-mounted pins 32a, preferably curved resilient blades, engaging during assembly in a groove on the inner surface of the cylindrical sleeve 28a in order to hold the button 28 while allowing its rotation.

The ring 32 further comprises two diametrically opposed stops 34 of satellites projecting towards the sun gear 31: these stops of the satellites 34 thus constitute abutments the planet gears 33 around the sun gear 31. They are dimensioned so that the planet gears 33 can circulate only 90 ° around the sun gear 31. In addition, since the button 28 is integral with the planet gears 33, these stops 34 also constitute stops for the button 28 whose stroke is then restricted to 90 °.

In this embodiment, the solar gears 31 and satellites 33 have the same pitch diameter, the epicyclic gear train 30 therefore provides a multiplication of ratio 4 between the planet carrier 28b and the sun gear 31, therefore between the button 28 and the control shaft 21.

Thus, when a user turns the knob 28 from its extreme unlocking position, in which the planet gears 33 are in abutment against a first face of the satellite stops 34, towards its extreme locking position, in which the planet gears 33 are in abutment against the opposite face of the satellite stops 34, the planet gears 33 travel in a 90 ° stroke and drive the sun gear 31 through 360 °: the control shaft 21, and thus the input pinion 11, thus perform one complete revolution, which allows to fully operate the locking mechanism 10 and thus to completely lock the door 1. In a symmetrical manner, the reverse movement from the locking position of the button 28 to its unlocked position causes the control shaft 21 and the input gear 11 on a complete revolution in the opposite direction, thus completely unlocking the door 1.

The modes or examples of embodiment described in the present description are given for illustrative and not limiting, a person skilled in the art can easily, in view of this presentation, modify these modes or embodiments, or consider others, while remaining within the scope of the invention.

In particular, in the example described above, the pitch diameter of the solar gears 31 and satellites 33 were equal and the multiplication ratio was then 4. However, in other examples, these gears 31 and 33 could have different primitive diameters to obtain other multiplication ratios. In particular, it can be shown that the multiplication ratio is equal to 3 + (Rp / Rs) with Rp, the pitch radius of the planet wheels 33, and Rs, pitch radius of the pinion 31. Therefore, a pitch diameter increased by 80% for the sun gear 31 and reduced by 40% for the planet gears 33 would, in the same size, to obtain a multiplication ratio of 6. In such a case, the size and / or disposition of the satellite stops 34 should be modified to restrict the stroke of the button 28 to 60 °.

In addition, in the example above, the button 28 is placed on the side of the handle 3a housing the locking mechanism 10; however, it goes without saying that such a button could also be provided on the other side of the door and that a cylinder could be provided on the side of the locking mechanism.

Claims (9)

1. A control device for a door-locking mechanism, comprising
   a control shaft (21) capable of driving an axial rotary input (11) of a locking mechanism (10),
   a manual actuation button (28), configured for being able to be manipulated between two extreme angular positions defining a travel of the button of less than or equal to 180°, and
   a transmission device (30) coupled between the manual actuation button (28) and the control shaft (21), configured so that the actuation of the button (28) from one to the other of its extreme angular positions drives the control shaft (21) on at least one turn,
   wherein the transmission device comprises a planetary gear set (30), and
   wherein the crown (32) of the planetary gear set (30) comprises at least one satellite abutment (34) configured to oppose the displacement of at least one satellite sprocket (33).
2. The control device according to claim 1, wherein the maximum travel of the manual actuation button (28) is less than or equal to a quarter of a turn.
3. The control device according to claim 1 or 2, wherein the transmission device is a multiplying device (30) having a tranmission factor at least equal to 4, preferably at least equal to 6.
4. The control device according to any of claims 1 to 3, wherein the planetary gear set (30) includes a fixed crown (32), a solar sprocket (31) coupled with the control shaft (21), two satellite sprockets (33) rotating between the solar sprocket (31) and the crown (32), and a planetary carrier (28b) bearing the axes (35) of the satellite sprockets (33) and secured to the manual actuation button (28).
5. The control device according to claim 4, further comprising a supporting plate (29) on which is attached the crown (32) of the planetary gear set (30),
   wherein the manual actuation button (28) comprises a front plate (28b) and a cylindrical bushing (28a),
   wherein the front plate (28b) is attached on, or formed as a single block with, the planetary carrier of the planetary gear set (30), and
   wherein the cylindrical bushing (28a) surrounds the planetary gear set (30) and is flush with the supporting plate (29).
6. The control device according to any of claims 1 to 5, further comprising a second control device (22) coupled with a second end of the control shaft (21).
7. The control device according to any of claims 1 to 6, included in a cylindrical volume, the radius of which is less than or equal to 50 mm, preferably less than or equal to 40 mm.
8. A locking device for a door, comprising
   a locking mechanism (10) of the cremone bolt type including an input sprocket (11), and
   a control device (20) according to any of the preceding claims, the control shaft (21) of which is coupled with the input sprocket (11) of the locking mechanism (10).
9. A door, comprising
   a door panel (2),
   a handle (3a) of the hollow, tubular type, extending over the whole height of the door panel (2) and mounted on the panel by means of spacers (4),
   a locking mechanism (10) of the type with an accommodated cremone bolt in the handle (3a), and
   a control device (20) according to any of claims 1 to 7, accommodated in a lock spacer (4) connecting the handle (3a) to the door panel (2).

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