BE1018429A5 - DEVICE FOR OPENING AND CLOSING A VA-AND-VIENT DOOR VANTAIL. - Google Patents

Abstract

Device for opening and closing a leaf in both directions characterized in that it consists of a pivot axis (2) carrying two cams (4,5), namely: - a first cam (4) cooperating with elastic actuating means for storing energy when opening the leaf (1) and returning it to allow automatic closing thereof, and - a second cam (5) cooperating with means for damping of the movement of the leaf (1), - the pivot axis (2), the two cams (4,5), as well as the actuating means and the damping means being integrated in the thickness of the leaf (1 ).

Description

"Device for opening and closing a door leaf of type back and forth"

The present invention relates to a device for opening and closing a door leaf type back and forth.

Such a device allows on the one hand manual opening of the leaf in both directions from a closed position andthe other its elastic return to the closed position in the absence of any stress exerted on him.

Various devices of this type have already been proposed.

These devices generally have the disadvantage of being bulky, sophisticated and expensive and require to make reservations in the floor or in a lintel specific to the door.

The object of the present invention is to propose a door-door device that makes it possible to remedy these disadvantages.

According to the invention, such a device is characterized in that it consists of a substantially vertical pivot axis carrying two cams of different shape integrally mounted one above the other oncelui-ci, namely: - a first cam cooperating with elastic actuating means for storing energy during the manual opening of the leaf and returning it to allow automatic closing thereof, and - a second cam cooperating with hydraulic damping means of the movement of the leaf between its opening position and its closed position.

The essential characteristic of this door-closing device is related to the fact that it is of very small width, and that consequently the two cams that the actuating means and the damping means can be integrated in the thickness of the leaf.

According to a preferred characteristic of the invention, the actuating means are constituted by a mobile actuating rod in translation in a substantially horizontal axis receiving housing opening facing the first cam and subjected to the action of a return spring mounted to the inner part of this housing, as well as a first roller fixed at the end of the tiged'emtionnntent and kept in permanent contact with the first campar the return spring.

In view of this configuration, the first roller rolls constantly around the periphery of the first cam during the movements of leaf opening and closing.

The geometry of the two cams which is different must be understood to be chosen to facilitate the opening and closing movements of the leaf.

In particular, it is advantageous for the first camecompound on its periphery a concave part forming a recess corresponding to the closing position of the leaf.

The presence of this recess not only makes it possible to dematerialize the closed position but also to guarantee a good maintenance of the leaf in this position.

According to another characteristic of the invention, the end of the return spring opposite the actuating rod is supported on a barb whose position can be modified by means of a set screw.

It is thus possible to adjust the energy restored during the automatic closing of the leaf.

According to another preferred feature of the invention, the damping means consist of a hydraulic cylinder comprising a cylinder of substantially horizontal axis in which hermetically sits a piston separating two chambers connected by connecting channels, namely a working chamber and a reaction chamber.

The working chamber contains a section of the pivot pin on which is mounted the first cam and a second rolling roller fixed to the piston and held in permanent contact with the second cam.

The reaction chamber contains a spring of action that tends to recall the piston to the working chamber.

According to this characteristic of the invention, the geometry of the second cam is chosen so that it moves the piston towards the reaction chamber during the displacement of the leaf from the open position to the closed position.

This second cam also cooperates with damping members to produce a resistive torque on the axepivot during this movement and consequently to slow the closing movement of the leaf.

According to another characteristic of the invention, the connecting channels of the working chamber and the reaction chambercomprise a direct connection channel passing through the piston and equipped with a unidirectional discharge valve allowing the hydraulic fluid to pass only working chamber to the reaction chamber.

This discharge valve thus opens automatically during the manual opening movement of the leaf to allow the flow of hydraulic fluid from the working chamber to the reaction chamber, but remains closed during the automatic closing movement of the leaf.

However, to allow the hydraulic fluid to pass from the reaction chamber to the working chamber during this movement, there is provided an indirect connecting channel pierced in the cylinder of the hydraulic cylinder.

This indirect connection channel comprises a throttle thatdefines the damping members to produce a couplerésistant on the pivot axis.

A needle screw may advantageously make it possible to adjust the strangulation of this indirect connecting channel and by following the damping.

The connecting channels of the working chamber and the reaction chamber may also advantageously comprise an indirect safety connection channel also pierced in the hydraulic cylinder and having a calibrated safety valve for suppressing the damping effect when the device is subjected to an accidental overload caused for example by a user voluntarily quiférement the leaf by imposing a faster movement than the one programmed.

It is also advantageous to provide the pivot axis of an actuator which is positioned in a crapaudine adjustable in rotation to adjust the angular position of the leaf.

The door-closing device according to the invention can be mounted in the upper position or in the lower position of the leaf, a false pivotétantant placed on the opposite side.

The characteristics of the door closer device which is the subject of the invention will be described in more detail with reference to the accompanying nonlimiting drawings in which: - Figure 1 is a sectional view of the device; - Figure 2 is a view of schematic top of the actuating means in the closed position, - Figure 3 is a schematic top view of the damping means in the closed position, - Figure 4 is a front view of the damping means, - the figure 5 is a cross-section of FIG. 4 along the axis VV; FIG. 6 is a cross-section of FIG. 4 along the axis VI-VI.

According to Figure 1, the leaf 1 is articulated to its lower part about a vertical pivot axis 2 provided with a centralizer which is positioned in a thrust 3 rotationally adjustable to adjust the angular position of the leaf.

A first cam 4 and a second cam 5 of differentdifferent respectively are integrally rotatably mounted on axepivot 2.

According to FIGS. 1 and 2, the first cam 4 is positioned facing a receiving housing 6 of horizontal axis XX 'pierced in the thickness of the leaf 1 and in which an actuating rod 7 subjected to translation moves in translation. action of a return spring 8 mounted to the internal part of the housing 6 so as to constantly recall the actuator 7 in the direction of the first cam 4.

The actuating rod 7 is equipped at its opposite end with the return spring 8 of a first roller 9.

This first roller 9 is kept in permanent contact with the first cam 4 by the return spring 8.

The end of the return spring 8 opposite to the first roller 9 bears on a washer 10 whose position can beemodified by means of a set screw 11 so as to adjust the stress that can be exerted by the return spring 8 on the operating system 7.

According to Figure 2, the first cam 4 comprises a concave part 12 defining a recess materializing the closing position of the leaf 1.

In this position, which is shown in FIG. 2, the first rolling roller 9 comes to lock in this recess 12 to hold the leaf 1.

According to FIGS. 1 and 3, the device is also equipped with damping means consisting of a horizontal axeyy hydraulic cylinder 13 mounted above the receiving housing 6.

This hydraulic jack 13 comprises a cylinder 14 inwhich a piston 15 separating a working chamber 16 and a reaction chamber 17 hermetically moves.

The working chamber 16 encloses a section of the pivot axis 12 on which the second cam 5 is mounted.

This working chamber 16 also contains a second tread 18 fixed to the piston 15.

The reaction chamber 17 includes a reaction spring 19 which tends to return the piston 15 to the working chamber 16.

The working chamber 16 and the reaction chamber 17 are connected by a direct connection channel 20 shown in FIGS. 1 and 3 as well as by an indirect connection channel 21 shown in FIG. 5 and by an indirect safety connection channel 22 shown on FIG. Figure 6.

According to FIGS. 1 and 3, the direct connection channel passes through the piston 15 of the cylinder 13 and is equipped with a unidirectional discharge valve 23 which allows the passage of the hydraulic fluid only from the working chamber 16 to the reaction chamber 17 and not in reverse direction from the reaction chamber 17 to the working chamber 16.

According to FIG. 5, the indirect connecting channel 21 is pierced in the cylinder 14 of the jack 13 and comprises a throat 24 which can be regulated by a set screw 25.

According to Figure 6, the indirect safety connection channel 22 is also pierced in the cylinder 14 of the cylinder 13; it comprises a calibrated safety valve 26 whose function will be specified in the following thisexposé.

Given the aforementioned configuration, when from the closed position shown in Figures 1 and 3, the user manually opens the leaf 1, the first roller 9 rolls roll on the first cam by driving the positioning axis 7 against the force of the return spring 8 which is also prestressing.

This preload can be adjusted by means of the adjusting screw 11.

At the same time, the second roller 18 rolls on the camper 5 by moving the piston 15 towards the working chamber 15, following the thrust exerted by the reaction spring 19.

Simultaneously, the unidirectional discharge valve 23 opens to allow the hydraulic fluid to flow from the working chamber 16 to the reaction chamber 17.

From the open position, the automatic closing of the leaf 1 is as follows:

The return spring 8 restores the prestressing energy stored during the opening of the leaf 1 and the first roller 9 rolls on the first cam4 until it comes to fit into the recess 12 of the cam 4 in the position shown in Figure 2.

Simultaneously, the second cam 5 whose shape is different from that of the first cam 4 moves the second rolling roller 18 and consequently the piston 15 in the direction of the reaction chamber 17.

During this movement, the unidirectional discharge valve 23 is closed and the hydraulic fluid can pass from the reaction chamber 17 to the working chamber 16 only through the indirect deli channel 21 having the constriction 24.

The presence of this constriction 24 produces a couplerésistant on the pivot axis 2 which has the function of damping the closing movement of the leaf 1.

This damping effect can be suppressed following the opening of the calibrated valve 26 mounted in the indirect safety connection channel 22 when the device is subjected to an accidental overload caused for example by a user deliberately closing levantail 1 by imposing a faster movement than the one programmed.

Claims (9)

1 °) Door leaf type back and forth can be opened manually¬ement in both directions from a closed position and rap¬pelé elastically to the closed position in the absence of any constraint acting on it, characterized in that it is equipped with an opening and closing device, fully integrated in its thickness, this opening and closing device being cons¬titué by a pivot axis (2) essentially vertical bearing two cams (4,5) of different shape integrally mounted one above the otherur thereof, namely: - firstly a first cam (4) cooperating with elastic actuating means for store energy during the manual opening of the leaf (1) and return it to allow the automatic closing thereof, and - secondly a second cam (5) cooperating with hydraulic damping means of the movement of the v antail (1) between opening saposition and its closed position. 2 °) leaf according to claim 1, characterized in that the damping means are constituted by a hydraulic cylinder (13) having a cylinder (14) of substantially horizontal axis in which hermetically moves a piston (15) separating two chambers (16,17) connected by connecting channels (20, 21, 22), namely: - firstly a working chamber (16) enclosing a section of the axepivot (2) on which is mounted the second cam (5) and a second bearing gland (18) fixed to the piston (15) and kept in permanent contact with the second cam (5), and - secondly, a reaction chamber (17) enclosing a action spring (19) tending to bias the piston (15) towards the working chamber (16), - the second cam (5) moving the piston (15) towards the reaction chamber (17) during the movement of the piston leaf (1) from the open position to the closed position, and - damping members (21, 24) as provided for producing uncouple resistant to the pivot axis (2) during this movement and thus ralen¬tir the leaf of the closing movement (1). 3 °) leaf according to claim 2, characterized in that the connecting channels of the working chamber (16) and the reaction chamber (17) comprise a direct connection channel (20) passing through the piston tra¬vers ( 15) and equipped with a unidirectional discharge valve (23) allowing the passage of the hydraulic fluid that the working chamber (16) to the reaction chamber (17). 4 °) leaf according to any one of claims 2 and 3, characterized in that the connecting channels of the working chamber (16) and the reaction chamber (17) comprise an indirect connecting channel (21) drilled in the cylinder (14) of the hydraulic cylinder (13) and having a constriction (24) defining the damping members. 5 °) leaf according to claim 4, characterized in that it comprises a set screw (25) for adjusting the constriction (24) of the indirect connecting channel (21) and hence the damping. 6 °) leaf according to any one of claims 2 to 4, characterized in that the connecting channels of the working chamber (16) and the reaction chamber (17) comprise an indirect safety connection channel (22) pierced in the cylinder (14) of the hydraulic cylinder (13) and having a calibrated safety valve (26) for suppressing the damping effect in the presence of an accidental overload. 7 °) leaf according to any one of claims 1 to 6, characterized in that the actuating means are constituted by an actuating rod (7) movable in translation in a receiving housing (6) axis essen ¬ horizontally opening facing the first cam (4) andsubject to the action of a return spring (8) mounted to the inner part of housing, and by a first roller (9) fixed at the end of the actuating rod (7) and kept in permanent contact with the first cam (4) by the return spring (8). 8 °) leaf according to any one of claims 1 to 7, characterized in that the first cam (4) has a concave portion (12) defining a évi¬dement corresponding to the closing position of the leaf (1). 9 °) leaf according to any one of claims 1 to 8, characterized in that the end of the return spring (8) opposite the actuating rod (7) issupported on a washer (10) whose position can be modified by means of an adjusting screw (11) to adjust the energy restored during the automatic closing of the leaf (1).