WO2004104330A1

WO2004104330A1 - Door opening manoeuvring device

Info

Publication number: WO2004104330A1
Application number: PCT/FR2004/001257
Authority: WO
Inventors: Jean Badillet
Original assignee: Unitecnic
Priority date: 2003-05-22
Filing date: 2004-05-21
Publication date: 2004-12-02
Also published as: PL1636450T3; DE602004009927T2; FR2855202A1; DE602004009927D1; PT1636450E; ATE377687T1; DK1636450T3; EP1636450A1; ES2295884T3; FR2855202B1; EP1636450B1

Abstract

The invention relates to a device which is used to manoeuvre the opening of a door. The inventive device comprises two manoeuvring members (10, 12), a drive shaft (14) which is disposed in a hole in the door and which can be rotated by the aforementioned members, and an access-control mechanism (20) which is used to prevent or authorise the rotation of the shaft depending on an authorisation command. The device also comprises: two clamping plates (16, 18), the above-mentioned drive shaft (14) extending therebetween; means for connecting the drive shaft to the actuation members through each plate; and two clamping members (14, 44) which are aligned with the drive shaft (14) and which are supported in relation to each of the plates, said clamping members co-operating with each other by means of at least one of the plates in order to exert stresses that draw the plates towards one another. The device can be installed on a door without the need for any holes other than that mentioned above for the drive shaft.

Description

Operating device for opening a door

The present invention relates to a device for maneuvering the opening of a door, comprising a first and a second operating member, one for each side of the door, a drive shaft, adapted to be disposed in a hole of the door, door and to be rotated by said members to move a bolt, and an access control mechanism adapted to prevent or allow the drive in rotation of the drive shaft by at least one of the operating members based on an open authorization command.

Devices of this type, including an access control mechanism, are commonly used to prevent unauthorized persons from entering a room whose door is equipped with such a device. The access control mechanism can be of any known type and be triggered by various means such as entering a code on a keyboard, the use of a particular key, for example mechanical or magnetic, or the recognition of a signal corresponding, for example, to the detection of an authorization signal emitted by a transmitter carried by a person authorized to access the premises or to the detection of biometric characteristics of this person.

In general, the door to be equipped with such a device is pre-drilled to allow the arrangement of the drive shaft in this door. A bolt system that can be driven by this axis is also arranged in the thickness of the door or fixed on one of its faces by being integrated in a housing. The adaptation to the door of a known maneuvering device of the aforementioned type requires that the door is pierced to allow the attachment of this device, for example by screwing into the door.

These holes are sometimes difficult to achieve, especially when the door is an anti-intrusion security door, made of a particularly hard material, or even shielded or a fire safety door. On the other hand, it happens that a device of the aforementioned type is placed on a door instead of a pre-existing maneuvering device, for example a device without access control. It is then desirable to allow a mounting as simple as possible of the device and avoiding if possible to pierce the door which could harm its qualities aesthetic. For example, in prestigious premises, some doors are made of precious material and it is desirable to avoid degrading the appearance. This is all the more desirable that the new device that is mounted may be called to be deleted if the access control proves ultimately not necessary, or be replaced by another device at the end of its life.

The object of the invention is to propose a device for maneuvering the opening of a door comprising an access control mechanism whose assembly is as simple as possible and does not require the realization of another piercing than the one that it includes to allow the passage of the drive shaft.

This object is achieved by the fact that the device according to the invention comprises a first and a second clamping plate between which the drive shaft extends, first connection means for connecting the drive shaft to the first operating member through the first plate, second connecting means for connecting the drive shaft to the second operating member through the second plate, and a first and a second clamping member aligned with the axis and respectively retained relative to the first and the second plate, said clamping members cooperating with each other through at least one of the plates to exert on the plates of the stresses tending to bring them one of the other.

The clamping plates can simply be arranged against both sides of the door, being pressed against it by the actuation of the first and second clamping members. Thus, the door is sandwiched between these plates. These clamping members being aligned with the drive shaft, they use the hole initially provided for this axis, without it being even necessary to enlarge these holes. Indeed, these clamping members or at least the parts of these bodies which are arranged in the bore, are located in the bulk of the drive shaft, without exceeding radially relative thereto.

Depending on the level of actuation of the clamping members, the stresses exerted on the plates to bring them together may be sufficiently high for, under the effect of the forces of friction generated between these plates and the two faces of the door, prevent said plates from pivoting on the door.

When the device is put in place on a pre-existing door, it often has a lock initially allowing its opening with a key. This lock generally has protruding parts on both sides of the door, for example to guide the engagement of the key, and the plates can be easily cut to fit on these protruding elements to avoid any risk of pivoting this plate against the door. When no protruding element is available on the faces of the door, it is possible to further increase the aforementioned frictional forces, for example by using a double-sided adhesive or by slightly bonding between the plates and the door, or else interposing, between the plates and the door, plates intended to increase the resistance to sliding, for example plates of flexible material such as rubber or another elastomer.

In all the following, it will be considered that the inner sides of the plates are those which are intended to be arranged against the door. Thus, the inner sides of each of the two plates are facing each other. The first and second actuators are respectively disposed on the outer sides of the first and second platen, opposite their inner sides.

The access control mechanism is advantageously supported by one of the plates. Of course, one can provide two access control mechanisms supported by each of the two plates so that the door can be opened from each of these two sides, only by authorized persons. As will be seen in the following, this possibility can also be offered with a single access control mechanism, supported by one of the plates but operatively connected to the operating member located outside the other plate .

According to a first advantageous embodiment, the first clamping member is at least partly formed by the drive shaft. Advantageously, in this first embodiment the drive shaft has a first end and a second end which, respectively through the first plate and through the second platen, are respectively coupled with a driving member for the first operating member and with a driving member for the second operating member, said driving members being disposed outside the plates and retaining the drive shaft relative to the latter, the axial position of the drive shaft relative to at least one of said driving members being adjusted by the second clamping member.

The drive shaft is then arranged in the bore of the door provided for this purpose and it is by its ends which are coupled to the driving members, that it serves for clamping by cooperating with the second clamping member. For example, the first end of the drive shaft can be fixed, for example by screwing, snapping or welding to the first drive member, the drive shaft passing through the first plate and extending into the drilling of the door so that its second end passes through the second plate or is opposite an orifice of the second plate, to allow its cooperation with the second clamping member, which may be a screw, retained relative to the second drive member and accessible from the outside. Advantageously, the second driving member is formed by the second operating member.

Advantageously, the device comprises slip rings disposed between the plates and the driving members.

These slip rings constitute axial bearings which limit the friction between the driving members and the plates during the rotation of the drive shaft, and which therefore allow the easy maneuvering of the operating means to open the door, despite the fact that the drive shaft is tensioned between the two plates.

A second advantageous embodiment is defined by the fact that the drive shaft has a bore that passes through it over its entire length, that the first clamping member is formed by a clamping rod disposed in said bore and having a first end retained relative to the first plate and a second end located in the vicinity of an orifice of the second plate, and that the second clamping member is at least partly located outside the second plate being retained by report to the latter vis-à-vis a displacement towards the first plate and cooperates with said second end of the clamping rod through said orifice to move axially relative to this rod while being retained relative thereto. In this embodiment, it is the clamping rod, which passes through the inside of the drive shaft, which is tensioned to bring the two plates together to take them the door sandwiched between them. The drive shaft can simply be cut to a suitable length, corresponding to the thickness of the door, to extend between the two plates. It is not affected by the stresses that put the tensioning rod in tension and is easily rotated by manipulation of the operating members.

The device advantageously comprises, for each operating member, a drive system comprising a drive gear, a first driven gear engaged with the drive gear and a second driven gear engaged with the first driven gear and with the drive shaft. drive, the drive pinion and the first driven gear being disposed outside the plate outside which is the operating member considered, while the second driven gear is disposed within said platen, the latter having an orifice through which the first and second driven gears are engaged.

Advantageously, the device comprises a signal transport member, such as an electric cable or an optical fiber, which extends in the drilling of the drive shaft. This transport member, which can be arranged in the drilling of the drive shaft, next to the clamping rod or around the latter, allows the transmission of information between the two sides of the door. For example, it allows to disable the access control mechanism from inside the room closed by the door to allow access to this room. It also makes it possible to carry out the control of the opening of the door, not only, from the outside of this door, for the entry into the room closed by this door, but also from this room, on the side inside the door. It also allows to have the entire access control mechanism on the inside of the door which, on the one hand, limits the risk of forcing this mechanism from outside the room protected by this door and which, on the other hand, makes it possible to have a small size plate on the outside of the door so as to affect as little as possible its aesthetic appearance. Thus, the signal transport member can transfer a signal allowing the opening (activated signal by entering a code, recognizing a card or biometric feature ...) on one side of the door to an actuation system of this mechanism, which is located on the other side of the door. The signal transport member may also be constituted by the clamping rod if the latter is conductive.

The invention will be better understood and its advantages will appear better on reading the detailed description which follows, of embodiments shown by way of non-limiting examples. The description refers to the accompanying drawings, in which:

FIG. 1 is a perspective view of the device of the invention, according to a first embodiment, showing the access control mechanism in its engaged position, in which it authorizes the driving in rotation of the axis of rotation. training by maneuvering the two maneuvering organs;

FIG. 2 is a front view along the arrow II of FIG. 1, showing the access control mechanism in a disengaged situation; FIG. 3 is an exploded perspective view showing the various elements of the device of FIGS. 1 and 2;

- Figure 4 is a perspective view of the device of the invention according to a second embodiment, showing the access control mechanism in a disengaged situation; FIG. 5 is an exploded perspective view, showing the various constituent elements of the device of FIG. 4; and

- Figure 6 is a sectional view of the device of Figure 4, in the plane VI.

The device of FIGS. 1 to 3 comprises two operating members, respectively 10 and 12, arranged on either side of a door 1 (shown in FIG. 2 by hatching) and a drive shaft 14 which is arranged in a bore 2 of this door. Classically, this axis 14 is a control square. This hole has a diameter D which is small, for example of the order of 2 to 3 cm. This drilling is the same as those that are commonly practiced in a door to allow the passage, through the latter, an axis such as a conventional control square, whose diametrical dimensions are of the order of 1 to 2 cm. The bore 2 communicates with a housing 2A, made in the edge of the door and used to accommodate the thickness of the door bolt and its drive mechanism by the axis 14. This bolt and this mechanism can be of any known type and are not represented.

The device comprises a first and a second clamping plate 16, 18, respectively disposed against each of the two opposite faces of the door. It also comprises an access control mechanism 20, which is supported by the first plate 16.

In this case, this mechanism comprises a drive motor 22, for example an electric motor powered by a battery, which drives a driving pinion 24 itself driving the intermediate gears 26. One of these gears carries an eccentric cam 28 which, during the rotation of this pinion, moves a control spring 30 which cooperates with the arm 32 'of a control fork 32 to pivot the latter about its axis 33.

The ends of the fork comprise re-entrant lugs 32A which are engaged in the groove 34 of a jaw clutch 36. The actuation of the motor thus makes it possible to move this bell in translation along arrow F.

As can be seen better in FIGS. 2 and 3, the inner face facing the plate 16 of the bell 36 has a plurality of axial pins 38 which, depending on the position of the bell 36, are spaced apart from a driving member 40 or penetrate into clutch holes formed on the outer face 40A of this member 40, to engage the bell and the member 40. The bell 36 is integral in rotation with the operating member 10, in this case a conventional stand, via a square 42 integral in rotation with the stand 10. The drive member 40 is, in turn, integral in rotation with the drive shaft 14, being coupled to the first end 14A of the latter.

The bell 36 is a clutch member, integral in rotation with the first operating member 10 and adapted to be disengaged or engaged with the first drive member 40 according to the open authorization command. The drive shaft 14 passes through a hole 16A of the plate 16 and extends into the bore 2 of the door so that its second end 14B reaches the region of an orifice 18A of the plate 18. It is Note that, for ease of understanding, portions of the plates 16 and 18, marked with the references 16 'and 18' in Figure 3, were torn off the drawings of Figures 1 to 3.

In this first embodiment, the first clamping member is formed by the drive shaft 14.

On the side of the second plate 18, the second operating member 12 acts as a second driving member, being coupled with the end 14B of the drive shaft 14 which, when this axis is in place in the bore 2 of the door, protrudes from the outer side of the plate 18. However, a relay driving member between the axis 14 and the operating member 12, could be provided. The second clamping member is constituted by a screw 44 which, by its head 44A, is retained in a bore 46, which has the second drive member constituted by the operating member 12 and which is aligned with the drive shaft 14 when the device is mounted on the door. A tear is made on the stand 12 to better visualize the position of this piercing. The screw 44 can thus, by its threaded shaft 44B engaged in the bore 46, cooperate by screwing with the drive shaft 14 being retained in the operating member 12 by its head 44A. In this case, the screw 44 is male, and enters an axial thread 48 that has the second end 14B of the drive shaft 14. The head 44A of the screw 44 is accessible from the outside of the stand 12 by a recess 46A that presents this stand, and which is connected to the bore 46 by a shoulder 46B retaining the head of the screw. It is of course understood that the screwing of the screw 44 has the effect of biasing the displacement of the plate 18 to the plate 16 as indicated by the arrow F18. However, it could be expected that the end 14B of the axis 14 is provided with a threaded cylindrical end, while the screw 44 would take the form of a socket having a threaded cylindrical inner wall adapted to receive this endpiece inside. The axis 14 and the shaft 44B of the screw have lengths allowing the engagement of this shaft in the bore 48 when the plates are arranged against the door without being clamped, while maintaining, between the free end of the axis 14 and the head of the screw a sufficient distance to tighten the screw until the desired tightening torque is achieved.

The first end 14A of the drive shaft 14 is secured to the drive member 40 so as to avoid separation of these two elements by a relative axial movement parallel to the arrow F18. For example, a radial pin (not shown) can be engaged in aligned radial bores of the member 40 and the axis 14. This axial connection can also be obtained using a screw (not shown) retained in the member 40 as the screw 44 is retained in the operating member 12, and screwed into a hole that would present the end 14A of the axis 14. Generally, any suitable retaining means can be used, even a definitive fixation such as a weld. The drive member 40 is retained relative to the plate 16 vis-à-vis a displacement in the direction F 16, to the other plate 18, in that its radial dimensions are greater than those of the bore 16A.

To limit the friction between the driving members and the plates, a sliding ring 50 is disposed between the driving member 40 and the outer face of the plate 16, and a sliding ring 52 is disposed between the operating member 12 and the outer face of the plate 18. These sliding rings can be made of friction-limiting material, for example Teflon® or a suitable plastic material, or be formed by ball bearing rings. In this case, the sliding ring 52 is integral in rotation with the drive shaft 14 by having a square section bore adapted to the section of this axis. On the other hand, the ring 50 has a circular internal bore, adapted to a shoulder 40B of the driving member 40. The holes 16A and 18A of the plates 16 and 18 are bordered, on the outer faces of these plates, by annular extra thicknesses of dimension adapted to those of the rings 50, 52.

With reference to FIGS. 4 to 6, the second embodiment of the invention will now be described. In these figures, elements unchanged from the previous figures are assigned the same references. According to this second embodiment, the drive shaft 114, formed in this case by a drive square, has a bore 115 which passes through it over its entire length. The first clamping member is formed by a clamping rod 117, which is disposed in this bore and which has a first end 117A (Figure 6) retained relative to the first plate 116.

In this case, this first plate has an orifice 161 formed in a portion of tubular axis 160 whose inner periphery is threaded allowing screwing, in this portion of tubular axis, the threaded end 117A of the rod 117. Of course, the retention between the end 117A of the rod 117 and the plate 116 could be achieved by other means, for example by welding, clipping or other. One could also consider that the end 117A has, on its free end, a shoulder abutting against the free edge of the tubular axis portion 160 or an orifice of the plate, this rod then being engaged in this plate by being displaced relative to it in the direction F116. The second end 117B of the rod 117 is located in the vicinity of an orifice 163 of the plate 118. In this case, this end 117B extends inside a tubular axis portion 162 belonging to the second platinum 116 and hollow from side to side.

The second clamping member is formed by a bushing 144 whose inner wall has a tapping 144B cooperating by screwing with the threaded end 117B of the rod 117.

The sleeve 144 has a head 144A which is retained with respect to the plate 118, with respect to a displacement in the direction F118, towards the plate 116. In this case, this head forms a shoulder which is retained against the free end of the tubular axis portion 162. It is understood that the screwing of the sleeve 144 advances the end 117B of the rod 117 inside this sleeve and thus tends to bring the plate 118 of the plate 116 by moving it in the FI 18 direction.

The drive system for the first operating member 10, which makes it possible to connect the drive shaft 114 to this first drive member, comprises a drive gear 170, a first driven gear 172 meshing with the drive gear 170 , and a second driven gear 174, in engagement with the first driven gear 172 and with the drive shaft 114. This second driven gear has in this case a recess 174A adapted to receive, in complementary form, the first end. 114A of the drive shaft 114. The drive gear 170 and the first driven gear 172 are disposed outside the plate 116. The axis of rotation for the drive gear 170 is formed by the tubular axis portion. 160 previously mentioned. The axis of rotation for the first driven pinion 172 is formed by a stud 173 projecting on the outer face of the plate 116. The second driven pinion 174 is, for its part, disposed on the inner side of the plate 116.

The latter has an orifice 175 through which the teeth of the gears 172 and 174 engage. The plate 116 has, on its inner face, a recess 176 housing the second driven pinion which is disposed inside this plate. This ensures that, despite the presence of the second pinion led inside the plate, the inner face of the latter is located against the door. The orifice 175 previously mentioned is formed in the wall of this recess. In this case, the access control mechanism is similar to that of FIGS. 1 to 3. Thus, the bell 36 can be controlled to move along the arrow F so that its pins 38 can engage in bores 171A that presents the outer end face 170A of the drive gear 170. Insofar as during its drive by the operating members, the drive shaft 114 moves in general on an angular sector of the order of 90 ° it is not necessary that the teeth of the different gears extend over the entire circumference thereof. In this case, the toothing of the pinion 174 extends only about half of its circumference. For the connection of the drive shaft 114 to the second actuator 112, the device comprises a drive system, also comprising a drive gear 180, a first driven gear 182 which is engaged with the drive gear and a second gear. driven gear 184 which is engaged with the first driven gear and with the drive shaft 114. The drive gear 180 and the first driven gear 182 are disposed outside the plate 118 while the second driven gear 184 is disposed inside this plate. The latter has an orifice 185 through which the first and second driven gears 182 and 184 are engaged. More specifically, this plate has, on its inner face, a recess 186 which houses the second driven pinion 184 and the orifice 185 is formed in the wall of this recess. The axis of rotation of the drive pinion 180 is formed by the tubular axis portion 162 that the second plate 118 has and the inside of which the sleeve 144 cooperates with the clamping rod 117. In the example shown, the second operating member 112 is directly engaged with the drive gear 180. Indeed, the latter has an axial extension forming a drive square 190 which engages in a housing 192 of complementary shape that has the first operating member. These two elements are secured to axial translation by any appropriate means, for example by a pin.

It is noted that the housing 192 forms part of a bore 194 which passes through the second actuating member from one side to the other, so as to release access to the head of the sleeve 144 for its screwing, even when this operating member is in place. The drive pinion 180 is retained on its axis 162 by any appropriate means, for example by means of a housing 118 ', shown in broken lines in FIG. 6, fixed on the plate 118.

The axis of rotation for the first driven gear 182 is formed by a pin 183 projecting on the outer face of the plate 118. The second driven pinion 184 is, in turn, similar to the second driven gear 174 and is committed to complementarity of shape on the second end 114B of the drive shaft 114.

Like the housing 118 'which is fixed on the plate 118, housings 116', 16 'and 18' can be fixed on the plates 116, 16 or 18 for the sake of protection and aesthetic quality. For example, the housings 116 'and 16' can house the supply system, for example a battery, for the motor 22. They can also support means for reading or entering information permitting the opening the door, for example a coded keyboard 200, or an optical cell capable of receiving a signal, or even the cell of a biometric parameter detection camera.

Of course, the access control mechanism 20 that has been described can be replaced by other mechanisms of a type known per se, allowing controlled drive of the drive shaft 14 or 114. Rather than 'be driven by a motor of the motor type 22, the The pinions of such a mechanism can be driven by ratchets, themselves actuated by the depression of the keys of the keyboard.

Furthermore, the access control mechanism shown disengages the drive shaft 14 or 114 relative to the operating member 10 when access is not allowed. Thus, this mechanism is able to prevent or allow a coupling of this first operating member with the first drive member 40 of the embodiment of Figures 1 to 3 or with the drive gear 170 of the embodiment of Figures 4 to 6 according to the opening authorization command. Thus, when access is not allowed, the first operating member is operated unladen.

Instead, a mechanism could be used to block rotation of the drive shaft when access is not allowed.

One can take advantage of the presence of the bore 115 in the drive shaft 114 to have in this bore a signal transport member. For example, the rod 117 could itself be hollow by being pierced from side to side. It has thus been indicated the presence of a bore 119 in FIG. 6. The head of the bush 144 may also be pierced with a bore 145, aligned with the bore 119 to allow the signal transport member to come out on the opposite side. outside the plate 118. The drive gear 180 may have a bore 181, extending over an angular sector corresponding to its amplitude of rotation during the maneuver of the member 112, through which the signal transport member would pass to be connected to a suitable system disposed inside the housing 118 '. In the housing 116 ', the signal transport member would exit through the end of the bore 119, inside the square 42, and pass through a radial bore 181', extending over a sufficient angular sector, for be connected to any suitable system disposed inside the housing 116 '. If the transport of this signal is provided by electrical conduction, it can simply provide that the rod 117 is electrically conductive, being isolated from the drive shaft 114, for example by being coated with an insulating sheath. In this case, at both ends, this rod would be connected to appropriate electrical contacts.

Claims

1. A device for opening a door (1), comprising a first and a second operating member (10, 12; 112), one for each side of the door, a drive shaft (14; 114), adapted to be arranged in a bore (2) of the door and to be rotated by said members to move a bolt, and an access control mechanism (20) adapted to prevent or allow the driving in rotation of the drive shaft by at least one of the operating members according to an opening authorization command, characterized in that it comprises a first and a second clamping plate (16, 18 116, 118) between which the drive shaft (14; 114) extends, first connection means (14A, 40, 36; 114A, 174, 172, 170, 36) for connecting the axis driving the first operating member (10) through the first plate (16; 116), second connecting means (14B, 46; 114B, 184, 182, 180, 192) in ur connect the drive shaft to the second operating member (12; 112) through the second platen (18; 118), and a first and a second clamping member (14, 44; 117, 144) aligned with the drive shaft (14; 114) and retained respectively relative to the first and second plates (16, 18; 116, 118), said clamping members cooperating with each other through at least one of the plates to exert on the plates stresses tending to bring them closer together. the other.

2. Device according to claim 1, characterized in that the access control mechanism (20) is supported by one (16; 116) of the plates.

3. Device according to claim 1 or 2, characterized in that the first clamping member is at least partly formed by the drive shaft (14).

4. Device according to claim 3, characterized in that the drive shaft (14) has a first end (14A) and a second end (14B) which, respectively through the first plate (16) and through the second plate (18), are respectively coupled with a driving member (40) for the first operating member (10) and with a driving member (12) for the second operating member, said driving members being disposed outside the plates (16, 18) and holding the drive shaft (14) relative to the latter, the axial position of the drive shaft relative to at least one of said driving members being adjusted by the second clamping member (44).

5. Device according to claim 4, characterized in that the access control mechanism (20) is adapted to prevent or allow a coupling of the first operating member (10) with the first driving member according to the control of opening authorization.

6. Device according to claim 5, characterized in that the access control mechanism (20) comprises a clutch member (36) integral in rotation with the first actuating member (10) and adapted to be disengaged or engaged with the first driving member (40) according to the opening authorization command.

7. Device according to any one of claims 4 to 6, characterized in that the second drive member (12) has a bore (46), aligned with the drive shaft (14), for the second clamping member (44), the latter being adapted to cooperate by screwing with the drive shaft (14) being retained in said bore of the second drive member.

8 Device according to claim 7, characterized in that the drive shaft has an axial tapping (48), while the second clamping member (44) is formed by a screw cooperating with said tapping.

9. Device according to any one of claims 4 to 8, characterized in that the second drive member is formed by the second actuating member (12).

10. Device according to any one of claims 4 to 9, characterized in that it comprises sliding rings (50, 52) disposed between the plates (16, 18) and the driving members (40, 12).

11. Device according to claim 1 or 2, characterized in that the drive shaft (114) has a bore (115) which runs through its entire length, in that the first clamping member is formed by a rod clamping device (117) disposed in said bore and having a first end (117A) retained relative to the first plate (116) and a second end (117B) located adjacent an orifice (163) of the second plate (118), and in that the second clamping member (114) is at least partly located outside the second plate (116) while being retained with respect to the latter opposite moving to the first platen (116) and cooperates with said second end (117B) of the clamping rod through said orifice to move axially relative to the rod while being retained relative thereto.

12. Device according to claim 11, characterized in that the first and second clamping members (117, 144) cooperate with each other by screwing.

13. Device according to claim 12, characterized in that it comprises, for each operating member (10, 112), a drive system comprising a drive pinion (170, 180), a first driven gear (172, 182 ) engaged with the drive gear (170, 180) and a second driven gear (174, 184) engaged with the first driven gear (172, 182) and with the drive shaft (114), the drive gear ( 170, 180) and the first driven gear (172, 182) being disposed outside the plate (116, 118) outside of which is the operating member (10, 112) considered, while the second driven gear (174, 184) is disposed within said platen, the latter having an orifice (175, 185) through which the first and second driven gears engage.

14. Device according to claim 13, characterized in that each plate (116, 118) has, on its inner face, a recess (176, 186) housing the second driven gear (174, 184) disposed within said platinum, the orifice (175, 185) through which the second driven pinion is engaged with the first driven pinion disposed outside said plate being formed in the wall of this reinforcement.

15. Device according to claim 13 or 14, characterized in that the second plate (118) has a tubular axis portion (162), forming the axis of rotation for the drive pinion which is disposed outside of this second platen, the second clamping member (144) cooperating with the clamping rod (117) through the interior of said tubular axis portion (162).

16. Device according to any one of claims 13 to 15, characterized in that the access control mechanism (20) is adapted to preventing or allowing a coupling of the first operating member (10) with the drive gear (70) disposed outside the first platen (116) as a function of the open authorization command.

17. Device according to any one of claims 11 to 16, characterized in that it comprises a signal transport member, such as an electric cable or an optical fiber, which extends into the bore (115) of the drive shaft.