FR2754009A1 - Control device and drive mechanism for automatic doors - Google Patents

Abstract

The door control device (1) is integrated with the drive mechanism (3) for the door (2) and consists of the motive system (10), which is mounted directly, or indirectly, on to the fixed frame and is designed to transmit a movement of rotation and/or translation to the opening part (4) of the system. The device is contained within a housing (12) and consists of a control circuit (13) and a transmission element (14). The motive system and the fixed frame are arranged with a damping device (11), fitted between them and which is designed to absorb part or all of the inertia forces, which are opposed by the opening part, whenever the movement is stopped or started. The motive system is formed by a jack (20), with an operating stem (15), which drives the transmission element.

Description

 The invention relates to a device for controlling the opening and closing of a door integrating a drive device for said door which comprises motor means mounted directly or indirectly on the dormant frame of this door and capable of transmitting a movement of rotation or translation to at least one opening.

 The present invention will find its application in the field of automatic doors and, in particular, industrial doors with large dimensions, in particular hinged doors, folding doors, or even doors with sliding doors.

 Already known, in particular from document FR-A2.710.943, a control device conforming to the description above. The latter makes it possible to control the opening and closing of a door, which comprises a leaf mounted to pivot about a vertical axis on each side of the opening which it closes.

 This control device takes position in a box secured to the door frame. I1 comprises a motorized drive device, as well as a drive mechanism in the form of a transmission device of the chain and / or belt type describing a looped circuit in an approximate shape of eight and coming to be wound, partially, around '' at least two pulleys or pinions with vertical axis of rotation. Each of these axes acts, directly or via appropriate control members, on a leaf in order to give it a rotation in opposite direction with respect to each other under the action of said drive device. motorized. This is arranged in the circuit of the transmission member and acts axially on the latter.

 This motorized drive device defines a housing inside which takes a control rod so that it is located in the circuit of this transmission member and acts axially on the latter by means of connecting means. disengageable. Furthermore, this motorized drive device comprises motor means capable of imparting to this control rod a rectilinear axial displacement in two directions. This rectilinear movement is transformed into a rotational movement communicated to the leaves of the door leading to its opening or closing.

 Said motor means are constituted by a hydraulic and / or pneumatic and / or electric jack and are fixed, by means of fixing supports, in a box mounted fixed on the sleeping frame more particularly on the upper crosspiece of the latter.

 This type of drive device provides satisfaction in terms of its operation when applied to small industrial doors. However, in the case of more substantial doors, there is a certain number of degradations occurring over time. These degradations result from the fact that the opening and closing of the opening elements require a significant torque due to their weight and their inertia. When the opening (s) arrive at the end of the opening and / or closing stroke, but also when an operation is interrupted, the drive device must, by itself, absorb the inertia of the moving opening . However, said drive device is rigidly mounted using appropriate fixing supports, inside the box disposed in the upper cross member of the frame. Also, the feedback due to the inertia exerted by the opening element (s) is transmitted directly to the box through the drive device and the fixing supports. The mechanical shock generated by this feedback has a particular impact on these fixing supports which undergo progressive deformation before tearing. This deformation has the effect of displacing the axis of the jack and means that the drive device is no longer located in alignment with the circuit of the transmission member. It is the same for the control rod which extends it. The latter will then have a tendency to twist, which causes a malfunction of the assembly of the door control device.

 I1 is also known in document DE-A-2,550,207, a device for controlling the automatic opening and closing of a door provided with motor means which are in the form of a double-acting cylinder and with thru control rod. Under the effect of hydraulic and / or pneumatic pressure in one of the chambers of the jack, the piston equipping the control rod moves to one side or the other, driving the transmission member. The latter communicates a rotational movement to intermediate means which will be passed on to the opening elements.

 If the use of a motor means in the form of a pneumatic or possibly oleopneumatic cylinder makes it possible, in certain configurations, to partially absorb the shocks due to a feedback from the opening elements on the drive device, this does not allow respond, generally, only in part to the problem posed.

It goes without taking into account that these drive means are of relatively complex design and require special care in their production. It is also necessary to surround yourself with special precautions during their use, in particular with regard to their maintenance, knowing that they operate under significant pressures. In addition, in order to produce their effects, these jacks require a unit for producing air and / or a pressurized liquid for their supply. All of these factors make a control device incorporating such motor means particularly expensive to purchase and maintain.

 The present invention has overcome all of the drawbacks set out above.

 To this end, the invention relates to a device for controlling the opening and closing of a door integrating a device for driving said door comprising motor means mounted directly or indirectly on a fixed frame and capable of transmitting a movement of rotation and / or translation to at least one opening characterized in that between said motor means and the sleeping frame are interposed damping means capable of absorbing all or part of the inertial force opposed by the opening or opening at each of the stop or start commands for this or these.

 The advantages of this invention consist in that the present control device comprises supports for fixing the drive device which, during a feedback, are no longer stressed in the same manner as in the prior art.

 Thus, the shocks resulting from the inertia opposed by the opening elements during the interruption of a maneuver are no longer absorbed by said fixing supports but by damping means interposed between said motor means and the sleeping frame.

 Another advantage of the present invention is that the use of a motorized drive device is no longer limited by the size of the opening elements as in the past. The presence of damping means now makes it possible to envisage extending its application to larger sashes.

 Other objects and advantages of the present invention will emerge during the description which follows, relating to an embodiment which is given only by way of indicative and nonlimiting example.

The understanding of this description will be facilitated by referring to the attached drawings and in which
- Figure 1 is a schematic plan view of the control device incorporating a drive device according to the invention;
- Figure 2 is a schematic view, in partial section of the drive device comprising the motor means and the damping means according to the invention.

 The present invention relates to a control device 1 for opening or closing a door 2 incorporating a drive device 3 for said door 2. The latter comprises at least one opening 4 pivotally or slidingly mounted on a sleeping frame 5.

 FIG. 1 of the attached drawings illustrates a control device 1 applied to a door 2, the opening 4 of which is formed by two leaves 6, 7, pivotally mounted, respectively, on one side 8 and on the other 9, of the opening closed by this door 2. Note that such a pivoting leaf 6, 7, can either be in one piece, or be subdivided into several flaps coming to fold, for example in accordion.

 In fact, the control device 1 for opening and closing a door 2 incorporating a drive device 3 for said door 2 comprises motor means 10 mounted directly or indirectly on the sleeping frame 5 and capable of transmitting a movement of rotation and / or translation to at least one opening 4. According to the invention, between said motor means 10 and the sleeping frame 5, there are interposed damping means capable of absorbing all or part of the inertial force opposed by the opening element (s) 4 to each of the controls for stopping or setting in motion this or these latter.

 It is specified that in the following description, reference will systematically be made to the embodiment illustrated in FIG. 1 concerning a pivoting casement door.

However, it is obvious to one skilled in the art that the control device which is the subject of the present invention will in no way be limited to such an application insofar as it will also find its usefulness in the case of opening doors. sliding.

 In fact, such a control device 1 is usually arranged in a box 12 attached to the upper crossmember or at the level of the threshold of the sleeping frame 5 of said door 2. Said control device 1 also incorporates a circuit 13 a transmission member 14 in which takes position the drive device 3 responsible for transmitting the leaves 6, 7 the movement it generates. Said drive device 3 is connected at its ends to the transmission member 14 which is in the form of a chain and / or a belt by a control rod 15.

 In the present case, the motor means 10 create a translational movement which is transmitted by transmission member 14 to pulleys or pinions 18, 19, lying substantially above the leaves 5, 6. Said pulleys or pinions 18, 19 , act on the latter, either directly or through appropriate control members, giving them a rotational movement.

 According to a preferred embodiment, the motor means 10 are constituted by a jack 20, preferably electric, but which can also be in the form of a pneumatic and / or hydraulic type jack. Said cylinder 20 is composed of a cylinder body 21 of tubular shape from which emerges and inside which engages the control rod 15 secured to a piston, not shown. Said control rod 15 is driven in a two-way translational movement which, in the case of an electric jack, is transmitted to it through drive means 22 by an electric motor 23.

 According to the invention, the drive means 10 are mounted indirectly on the sleeping frame 5 of the door 2, inside the box 12, by means of the damping means 11. The latter are in the form of a combination between sliding mounting means 24 and elastic means 25.

 Note, in passing that the presence of this box 12 is in no way essential to the implementation of the invention and that said motor means 10 can be attached directly to the frame 5 of said door 2. For the purpose of simplification , we will endeavor thereafter to describe the control device with respect to this preferred embodiment knowing that it is in no way limited to it.

 The sliding mounting means 24 allow the motor means 10 and more particularly to the cylinder body 21 to move relative to the box 12, in particular in the direction in which the feedback of the door is reflected on the drive device 3 .

 These sliding mounting means 24 are in the form of a fixed support 26 fixed on the box 12. According to the invention, this fixed support 26 takes the form of at least one guide flange 27 inside which the cylinder body 21 is slidably mounted.

 According to a preferred embodiment as shown in Figure 2, said guide flange 27 is in the form of a beam 28 inside which is provided, in the lengthwise direction, a bore adjusted to the section of the jack body 21. The use of such a beam 28 advantageously makes it possible to increase the range of the guiding of said jack body 21.

 The sliding mounting means 24 act in combination with elastic means 25 intended to absorb the energy which is released following a counter-reaction of the opening elements 4 and which results in an axial displacement of the jack 20 relative to the box 12. These these also make it possible to limit said axial movement of the jack 20 relative to the sliding mounting means 24.

 Thus the elastic means 25 connect said cylinder body 21 to a fixed element of the box 12, in particular to the guide flange 27.

 According to the invention, the elastic means 25 are constituted by elements of elastic material mounted on the cylinder body 21, on either side of the guide flange 27 coming to come between it and the stops of support 29 present on said cylinder body 21. These support stops 29 are defined, on the one hand, by a circlip 30 taking place at the bottom of a groove 31 formed in the cylinder body 21 at its end 32 and, on the other hand, by a shoulder 34 at the opposite end 33 of the latter.

 The elements made of elastic material may be in the form of silenblocks or helical springs. However, according to an advantageous embodiment, they consist of at least one ring 35 of elastic material, in particular rubber. The latter is sandwiched between two washers 36 of a more rigid material, in particular metallic material or, preferably, plastic. Said washers 36 come into contact, as the case may be, with the abutments 29 or with the guide flange 27 and contribute to the mechanical strength of said elements made of elastic material. Said ring 35 and the washers 36 then form a stack 37 which can easily be multiplied in order to optimize the damping.

 As has already been specified above, the motor means 10 are constituted by an electric type actuator 20 comprising an electric motor 23. This motor 23 is disposed at one of the ends 33 of the actuator body 21 and acts on the rod control 15 using appropriate drive means 22. The presence of this motor 23, disposed on the cylinder body 21 laterally, causes an overweight relative to a pneumatic, hydraulic or other cylinder. this overload will then have the effect of imposing an additional stress on the actuator body 21 which results in particular in a torque. This is aggravated by the fact that said motor 23 also undergoes the shock resulting from the feedback of the opening elements 4 and is, therefore, caused to move in the direction of the axis of the jack 20.

In order to remedy this drawback, the end 33 of the actuator body 21 comprises complementary sliding support means 38. These are in the form of a bracket 39, on the one hand, fixed to said end 33 of the body of cylinder 21 and, on the other hand, cooperating with a slide 40 mounted in the box 12. Said slide 40 is attached to the box 12 by suitable fixing means, in particular by welding or screwing.

 According to a preferred embodiment and as already known in document FR-A-2 710 943, the motor means 10 as well as the damping means 11 are arranged inside a casing 41 open on certain sides in order to allow relative movement of this casing 41 relative to the motor means 10 and dampers 11. In this case, said casing 41 is driven by the motor means 10, by means of disengageable connecting means 42. When these these are engaged, the translational movement generated by said motor means 10 is transmitted by the control rod 15 to the transmission member 14 in the direction of the door 2.

 The displacement of the casing 41 relative to the box 12 is strictly limited to a translational movement along the axis of the jack 20 by the installation of guide bearings 43 arranged on either side of said casing 41, preferably at proximity of the damping means 11. These bearings 43 are made of a material having a reduced coefficient of friction, in particular of synthetic material.

 If the use of such a casing 41 turns out to be essential in the case of an electric actuator 20 comprising a control rod 15 opening out only on one side of the actuator body 21, it will be noted that such is no longer the case when using a cylinder of another type in which the control rod 15 is through. The transmission of the translational movement to one transmission member is then done directly by fixing the latter to the ends of the control rod.

 It should be noted that the opening device 1 can advantageously be completed by a rigid plate 44. The latter serves as a template during the installation of the drive device 3, in particular of the guide flange 26 and, where appropriate, of the slide 40 of the sliding support means 38.

All of the elements can then be pre-assembled on this template before being placed inside the box 12.

 Although the present invention makes particular reference to motor means of the electric type, it is the attributions of one skilled in the art to replace these, pneumatic or hydraulic means. Also, the invention as it has been presented is in no way limited to an electric drive device, but can also be applied to a device integrating both a pneumatic, hydraulic and pneumopneumatic cylinder.

 In conclusion, the present invention represents, through these advantages and, in particular, the simplicity of design which it allows to achieve, a clear progress in the technical field considered.

 Although the invention has been described in connection with a particular embodiment, it is understood that it is in no way limited thereto and that it is possible to make various modifications to it in form, in materials and in combinations of these. various elements, without departing from the scope and spirit of the invention.

Claims (11)

Claims  1. Control device (1) for opening and closing a door (2) integrating a drive device (3) for said door (2) comprising motor means (10) mounted directly or indirectly on a frame frame (5) and capable of transmitting a rotational and / or translational movement to at least one opening (4), characterized in that between said motor means (10) and the frame (5) are interposed means shock absorbers (11) able to absorb all or part of the inertial force opposed by the opening element (s) (4) to each of the controls for stopping or setting in motion this or these (these).  2. Control device (1) for opening and closing a door (2), the motor means (10) of which are integrated in a circuit (13) of a transmission member (14), this control device (1) taking position in a box (12) integral with the sleeping frame (5), according to claim 1, characterized in that said motor means (10) are mounted using said damping means (11) at the inside of the box (12).  3. Control device (1) for opening and closing the door (2) comprising motor means (10) constituted either by a hydraulic, pneumatic and / or electric actuator (20) comprising an actuator body (21) and a control rod (15) cooperating with the transmission member (14) of the drive device (3), according to claim 2, characterized in that the damping means (11) are formed in combination by means of sliding mounting (24) of the jack body (21) in the box (12) and by elastic means (25) connecting said jack body (21) sliding to a fixed support (26) inside said box (12 ).  4. control device (1) for opening and closing the door (2) according to claim 3, characterized in that said sliding mounting means (24) are constituted by at least one guide flange (27) fixed in the box (12) inside which the cylinder body (21) is slidably mounted.  5. control device (1) for opening and closing the door (2) according to claim 4, characterized in that said guide flange (27) is in the form of a beam (28) comprising a bore adjusted to the section of the cylinder body (21) in order to increase the guide range of the latter.  6. control device (1) for opening and closing the door (2) according to any one of claims 4 or 5, characterized in that the elastic means (25) connect the cylinder body (21) to the guide flange (27).  7. <1> control device (1) for opening and closing the door (2) according to claim 6, characterized in that the elastic means (25) consist of elements made of elastic material, in particular rubber or in the form of springs, mounted on the cylinder body (21) on either side of the guide flange (27) coming to be interposed between the latter and bearing stops (29) present on said cylinder body (21).  8. control device (1) for opening and closing the door (2) according to claim 7, characterized in that the elements of elastic material constituting the elastic means (25) are in the form of one or several stacks (37) constituted by a rubber ring (35) sandwiched between washers (36) of a more rigid material, in particular PVC.  9. Control device (1) for opening and closing the door (2), the motor means (10) of which consist of an electric actuator (20) comprising an electric motor (23) disposed at one end of said cylinder body (21) and acting on the control rod (15) by means of suitable drive means (22), according to any one of claims 2 to 8, characterized in that it comprises support means complementary slides (38) of said cylinder body (21) at its end (33) provided with the electric motor (23).  10. Control device (1) for opening and closing the door (2) according to claim 9, characterized in that the complementary sliding support means (38) are in the form of a square (39) of a part fixed to said end (33) of the jack body (21) and on the other hand cooperating with a slide (40) mounted in the box (12).  11. Control device (1) for opening and closing the door (2) according to any one of claims 2 to 10, characterized in that the drive device (3) and, in particular the guide flange (27) and, if necessary, the slide (40) of the complementary sliding support means (38) are pre-assembled on a rigid plate (44) located inside the box (12).