EP3724432A1

EP3724432A1 - Door-stopping device with infinite holding positions

Info

Publication number: EP3724432A1
Application number: EP18833100.3A
Authority: EP
Inventors: Andre Prieur
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-12-13
Filing date: 2018-12-13
Publication date: 2020-10-21
Anticipated expiration: 2038-12-13
Also published as: WO2019115957A1; JP2021507147A; CN111601940A; US11236535B2; JP7285576B2; FR3074829A1; US20210172223A1; EP3724432B1

Abstract

The invention relates to a door-stopping device, including a linking arm (1) and a locking mechanism (2), one being rigidly connected to the leaf of the door and the other to the frame, said linking arm (1) including at least one face (11) intended for engaging with a braking element (21) resting on said face (11) of the linking arm (1), said braking element (21) being controlled by a blocking element (23) resting in a notch (211) provided on the braking element (21), said blocking element (23) engaging with resilient return means (24) intended for exerting a pressure of the blocking element (23) on the braking element (21), thus allowing the relative holding of the door in open position in any given position between the closed and fully-open positions. The device according to the invention is particularly applicable to motor vehicle doors.

Description

DEVICE FOR STOPPING DOOR WITH INFINITE HOLDING POSITIONS

The present invention relates to a door stop device, comprising a locking mechanism and a connecting arm, one being intended to be secured to the opening of the door, the other of the frame, said arm link comprising at least one face intended to cooperate with a braking element bearing on said face of the link arm, said braking element being controlled by a locking element bearing in a notch provided on the braking element said locking member cooperating with resilient biasing means for exerting a pressure of the locking member on the braking member thereby permitting the relative retention of the door in the open position in any position between the closed position and the full opening.

The invention relates to the field of door stop devices and will find a particular application in the areas of openings for automotive, building and household appliances.

Already known from the document FR 3,046,193, filed by the applicant, a door stop device for stopping and maintaining a swing door or sliding in one of the multiple positions defined by holding notches located on the link arm, when it ceases to exert the effort required for the opening or closing maneuver, with in particular possible applications to the openings of motor vehicles.

Thus, the door stop device with multiple holding positions described in document FR 3,046,193 is constituted, substantially:

- A link arm provided with multiple notches in each of which can be housed a locking element, thus ensuring the locking of the door stop device in multiple positions;

a mobile carriage which slides along the connecting arm on which it is mounted while offering a certain resistance to displacement, thus making it possible to keep the locking element in the unlocked position on inclined ramps that comprise said mobile carriage, when a relative movement appears between the link arm and the locking mechanism, the door stop device being in this case in unlocked mode. The relative sliding resistance between the link arm and the moving carriage can be obtained by simple friction between two contacting surfaces belonging respectively to each of these two elements, but also by the addition of a braking device that can be constituted by a brake shoe secured to the movable carriage and pushed by elastic means in contact with a surface belonging to the link arm;

- A locking member bearing in any of the notches that comprises the connecting arm under the effect of resilient biasing means, said locking member being itself movably mounted on the locking mechanism, following a direction comprising a component generally perpendicular to the connecting arm, so that it can be spaced from the notches of said link arm, in order to release the latter;

resilient return means integral with the locking mechanism and acting directly or indirectly on the locking element in a direction comprising a component generally perpendicular to the connecting arm. The elastic return means may consist of a metal or plastic assembly, or consist of a mixture of these materials, for example an assembly comprising a helical spring or resilient blades, or a deformable element, such as a elastomer block.

However, this door stop device is known to impose multiple but still predefined stop positions, so that the door can not be held in any position, but in one of the predefined positions, thus limiting the use of the entire travel actually available for the opening and maintenance of said door.

The present invention proposes a solution to remedy this drawback, while making the design of the door stop device substantially more robust: the present invention provides that the blocking element acts indirectly via a braking element. abutting with friction on at least one side of the connecting arm provided for this purpose, while a carriage movable in longitudinal translation relative to the connecting arm on which it is mounted, and with a limited movement relative to the body of said locking mechanism, is provided with inclined ramps provided to ensure the maintenance of said blocking element when the door stop device is in the unlocked position, said blocking element then no longer acting on said braking element.

For this purpose, the invention relates to a door stop device, comprising a locking mechanism and a connecting arm, one being provided to be secured to the opening of the door, the other of the frame, the connections with the frame and the opening being preferably articulated. Said connecting arm comprising at least one face intended to cooperate with said locking mechanism which comprises for this purpose a braking element bearing on said face of the link arm, said braking element being controlled by a movably mounted locking element on said locking mechanism, in a direction generally perpendicular to the link arm and said locking member bearing in a notch provided on said braking member, while said locking member cooperates with elastic return means which act directly or indirectly on said locking member, for exerting a pressure through said locking member on the braking member, thereby allowing the relative retention of the door opening in any position between the closed position and the full opening, remarkable by the fact that :

said connecting arm comprises at least one face intended to cooperate with the braking element described hereinafter and bearing on said face of the link arm, which face of the link arm has a surface state whose characteristics make it possible to a good frictional adhesion between said braking element and said face of the connecting arm, thereby ensuring the locking of the door stop device in any position between the closed position and the full opening of the door;

said locking mechanism comprises:

at least one braking element having a face that can come into abutment with good adhesion to one face of said link arm situated opposite said face of the braking element, while said braking element comprises at least one notch for receiving a locking member described hereinafter and which exerts pressure on said braking member when the door stop device is in locked mode, while said braking member is mounted movable relative to the locking mechanism, in a direction parallel to said connecting arm and in a limited movement by elastic return means which cooperate with the locking mechanism to return said braking member in the position where said notch of the the braking element is opposite said locking element, provided that said locking element no longer exerts pressure on said braking element when the door stop device is in unlocked mode;

at least one blocking element which controls said braking element while bearing, under the effect of resilient return means described hereinafter, in the notch provided for this purpose which comprises said braking element, while said locking element is itself mounted to move on the locking mechanism, in a direction generally perpendicular to said connecting arm, so that said locking element can be removed from the notch that comprises said braking element, to release this latest ;

- Elastic return means integral with the locking mechanism or the locking element, which act directly or indirectly between said locking mechanism and said locking member in a direction generally perpendicular to said connecting arm. The elastic return means may consist of a metal or plastic assembly, or consist of a mixture of these materials, for example an assembly comprising a helical spring or resilient blades, or a deformable element, such as a elastomeric block;

a movable carriage which slides along said linking arm on which it is mounted and with a limited movement relative to the body of said locking mechanism, while offering a certain resistance to displacement, thus making it possible to keep said locking element out of position; of said notch that comprises the braking element, by a bearing on inclined ramps that comprises said movable carriage, when a relative movement appears between the connecting arm and the locking mechanism, the door stop device then being in unlocked mode. The relative sliding resistance between said link arm and said movable carriage can be obtained by simple friction between two contacting surfaces belonging respectively to each of these two elements, but also by the addition of a braking device that can be constituted by a brake shoe secured to said carriage movable and pushed by elastic means in contact with a surface belonging to said connecting arm.

Variant of the braking element and the moving carriage: in a preferred embodiment, the braking element and the movable carriage can be made integral so as to form one and the same piece. The notch that comprises the braking element and which is intended to receive the locking element will then be extended on each side by inclined ramps, whose inclination will preferably be smaller than the inclination of the walls of said notch that includes the braking element. Said inclined ramps will bear on a surface belonging to said connecting arm to resume the force exerted by said locking element when the door stop device is in unlocked mode. The assembly thus constituted by the braking element and the movable carriage together, can slide along said connecting arm on which it is mounted and with a limited movement relative to the body of said locking mechanism, while offering some resistance to the displacement, thus making it possible to maintain said locking element outside the notch that comprises said assembly constituted by the braking element and the movable carriage together, by a bearing on the inclined ramps that comprises said assembly constituted by the element braking device and the movable carriage together, when a relative movement appears between the link arm and the locking mechanism, the door stop device then being in unlocked mode. The relative sliding resistance between the link arm and said assembly consisting of the braking element and the movable carriage together, can be obtained by simple friction between two contacting surfaces respectively belonging to each of these two elements.

Variant of the elastic return means: in a preferred embodiment, a variant of the elastic return means may be constituted by the addition of a transmission means provided between the elastic return means on the one hand, and the element blocking device or the locking mechanism, on the other hand, said transmission means being constituted by at least two surface elements, at least one of which is of curved shape, said surface elements cooperating with each other in a relative motion in two directions generally perpendicular to each other. Said surface elements cooperate to transmit the force provided by the elastic return means and so that the direction of the bearing force transmitted to the point of contact between said surface elements, evolves as the elastic return means are compressed. Thus, when the angle defined by the direction of the force transmitted to the point of contact with respect to the compression direction of the elastic return means is small, the perpendicular component acting on said locking element is weak, which presents a advantage in unlocked mode. Conversely, when the angle defined by the direction of the force transmitted to the point of contact with respect to the compression direction of the elastic return means is close to 90 °, the perpendicular component acting on the locking element is high, which has an advantage in locked mode. The purpose sought is to obtain a high holding force in locked mode, and to reduce the support force of said locking element against the inclined ramps of the mobile carriage, when the door stop device is in unlocked mode, thus making it possible to reduce the relative sliding resistance between the link arm and the movable carriage, necessary for the balance of forces experienced by the mobile carriage in said unlocked mode. Maneuvering the door in unlocked mode requires less effort.

Another variant of the elastic return means: according to the invention, the elastic return means are integral with the locking mechanism or the locking element and act directly or indirectly between said locking mechanism and said locking element, in a direction generally perpendicular to the link arm. According to one of the embodiments of the elastic return means, the invention proposes to modulate the value of the force provided by said elastic return means, according to the inclination of the locking mechanism, so as to allow the holding force to be modulated. in locked mode, depending on the inclination of said locking mechanism. For this purpose, the invention proposes to provide the elastic return means by superposition of the effects of at least two separate elastic return means, arranged so that the forces they provide can accumulate in the same direction, when a mechanical connection means described below is interposed between said separate elastic return means, or between one of the separate elastic return means and the locking mechanism, under the simple effect of gravity. The mechanical connection means acting under the simple effect of gravity can advantageously be formed of a spherical ball housed in a resistant conical surface, said resistant conical surface being integral with one of the elastic return means which are distinct or integral with the mechanism of rotation. locking, said resistant conical surface which is furthermore centered in relation to a rigid surface situated on one of the other resilient return means or centered in relation to a rigid surface situated on the locking mechanism, said rigid surface having in its center a cavity for accommodating the spherical ball when the conical resistant surface and the rigid surface described above approach one another as a result of the movement of the locking element described above. before, while the spherical ball remained in the center of the conical surface resistant under the effect of gravity, the door stop device is not then inclined. In this case, those elastic return means that are not biased during the movement of the locking element, are not put in compression and therefore do not participate in the force inflicted on the locking element. Conversely, when the spherical ball leaves the center of said conical surface resistant under the effect of gravity, due to an inclination beyond a predetermined threshold of the door stop device, said spherical ball is interposed between said resistant conical surface and said rigid surface described above, thus constituting a mechanical link allowing the corresponding elastic return means to be put in compression by the movement of said locking element, thereby causing a combination of efforts provided by each of the separate elastic return means. Thus, when the inclination of the door stop device remains below a certain predetermined threshold, one of the elastic return means is not biased by the displacement of the locking element and the effort resultant on said locking element is lower. Conversely, when the inclination of the door stop device exceeds a certain predetermined threshold, the separate elastic return means are actuated simultaneously by the displacement of the locking element and the resulting force on said locking element. is more important.

Other objects and advantages of the present invention will appear in the description which follows, referring to an embodiment of the device proposed by the invention, having non-limiting example value and whose understanding will be facilitated by referring to attached drawings, which constitute schematic representations of the device proposed by the invention:

- Fig. 1: representation of the door stop device comprising a connecting arm (1) and a locking mechanism (2), when the door stop device is in locked mode. - Fig. 2: representation of the door stop device comprising a link arm (1) and a locking mechanism (2), when the door stop device is in unlocked mode.

- Fig. 3: connecting arm (1), locking mechanism (2) and movable carriage (3), when the door stop device is in locked mode.

- Fig. 4: connecting arm (1), locking mechanism (2) and movable carriage (3) when the door stop device is being unlocked.

- Fig. 5: connecting arm (1), locking mechanism (2) and movable carriage (3), when the door stop device is in unlocked mode.

- Fig. 6: variant elastic return means (24) in locked mode.

- Fig. 7: variant elastic return means (24) in unlocked mode.

- Fig. 8: another variant of the elastic return means (24), showing two resilient return means (24) and (29) separate door locking device in locked mode.

- Fig. 9: another variant of the elastic return means (24), showing two resilient return means (24) and (29) separate door unlock device in unlocked mode, in a non-inclined position, without cumulative efforts.

- Fig. 10: another variant of the elastic return means (24), showing two resilient return means (24) and (29) separate door unlock device in unlocked mode, in an inclined position, with cumulative efforts.

- Fig. 1 1: another variant of the elastic return means (24), showing two separate elastic return means (24) and (29), with the conical resistant surface (292) integral with the locking mechanism (2), stop device locked door.

- Fig. 12: another variant of the elastic return means (24), showing two elastic return means (24) and (29) distinct, with the conical surface resistant (292) integral with the locking mechanism (2), stop device door in unlocked mode, in non-inclined position, without accumulation of forces.

- Fig. 13: another variant of the elastic return means (24), showing two elastic return means (24) and (29) distinct, with the conical surface resistant (292) integral with the locking mechanism (2), stop device door in unlocked mode, in inclined position, with cumulative efforts.

- Fig. 14: variant of the link arm (1) comprising a cylindrical portion (15).

- Fig. 15: variant of the braking element (21) and the movable carriage (3) grouped in one piece. The example of an embodiment of the door stop device proposed by the present invention consists of (Fig. 1):

- A connecting arm (1), preferably articulated at one of its ends, which can be made integral with the frame of the door or the opening, advantageously formed of an elongated bar and preferably rectilinear, made in a resistant material such as metal or a plastic used in the design of mechanical parts, which can offer at least one face (1 1) intended to cooperate with a braking element (21) described below and bearing on said face ( 1 1) of the connecting arm (1), which face (1 1) of the connecting arm (1) has a surface state whose characteristics allow good frictional adhesion between the braking element (21) and said face (1 1) of the connecting arm (1), thereby ensuring the locking of the door stop device in any position between the closed position and the full opening of said door. The connecting arm (1) may comprise at least one, or even preferably two grooves (12) (FIG 3), on one or more of its faces, in order to accommodate at least one or even preferably two ribs (33). ) belonging to the carriage (3) described below, so as to allow the maintenance of said movable carriage (3) relative to the connecting arm (1) while allowing longitudinal sliding of said movable carriage (3) relative to the link arm (1). The invention will not be modified if we reverse the arrangement of the grooves and ribs between the link arm (1) and the movable carriage (3), which one skilled in the art will understand as evidence. Finally, the invention provides that the connecting arm (1), movable relative to the locking mechanism (2) described below, may, according to a preferred embodiment, slide in contact with a bearing zone ( 34), integral with said movable carriage (3) (Fig. 4), to take up the forces indirectly applied by the locking element (23) described below, on the link arm (1). Said bearing zone (34) may consist of a flat-shaped elastomer part whose surface state of the zone in contact with the connecting arm (1) will allow relative frictional braking between said arm of link (1) and said movable carriage (3), when a bearing force intervenes because of the force transmitted indirectly by said locking element (23) on the connecting arm (1). The invention further provides that the connecting arm (1) can slide in contact with at least one bearing zone (25) integral with the locking mechanism (2), preferably of flat and rectilinear shape (FIG. , in order to take up the forces applied indirectly by the locking element (23) on said link arm (1), in the locked or unlocked modes of the locking mechanism (2), while allowing relative guidance of said link arm (1) relative to the locking mechanism (2). Said bearing zone (25) may simply consist of one or more ribs integral with the walls of the locking mechanism (2), which the skilled person can achieve without difficulty;

- A locking mechanism (2) (FIG 1) movable relative to the link arm (1) and adapted to be secured to the opening of the door or the frame by means of a preferably axially articulated connection perpendicular to the longitudinal axis of the linkage arm (1), schematized here by means of a fixing lug (28) (FIG 1), said locking mechanism (2) being provided to cooperate with said linkage arm ( 1) so as to keep locked the link arm (1) in any position, as long as it does not apply to the door a force greater than the predefined unlocking force.

Said locking mechanism (2) comprises (Fig. 3):

- A braking element (21), which has a face (21 1) which can bear with good adhesion to a face (1 1) of the connecting arm (1), located vis-à-vis the face (21 1) of the braking element (21), while said braking element (21) has a notch (212) (Fig. 5) for receiving the locking element (23) described hereinafter which presses on said braking element (21) when the door stop device is in locked mode. Said braking element (21) is also mounted to move relative to the locking mechanism (2) in a direction parallel to the connecting arm (1) and in a limited movement by elastic return means (22) which cooperate with the locking mechanism (2) for returning said braking element (21) to a central position where the notch (212) of said braking element (21) is opposite the locking element (23), since said locking element (23) no longer exerts pressure on the braking element (21), which occurs when the door stop device is in unlocked mode (Fig. 5). ). The braking element (21) may be constituted by an elastomeric block of shape for example parallelepipedal, rigid enough to be able to make the notch (212) which will be provided with a V-shaped in the embodiment shown in this non-limiting example. Moreover, the elastomer material of the braking element (21) has good adhesion with respect to the material constituent of the connecting arm (1) which will be provided in metal or plastic in this example. Furthermore, the adhesion between the link arm (1) and the braking element (21) can also be obtained by any arrangements well known to those skilled in the art, such as adding pins, notches , grooves or grooves on the surfaces in contact, by way of non-limiting examples, without this modifying the invention. Finally, the resilient return means (22) will, in this example, consist of simple coil springs bearing on the walls of the locking mechanism (2) and arranged symmetrically on either side of the braking element (21). (Fig. 3)

a locking element (23) (FIG 3), which under the effect of the elastic return means (24) described below, can bear in the notch (212) that comprises the braking element; (21), said locking element (23) being itself movably mounted on the locking mechanism (2), in a direction generally perpendicular to the connecting arm (1), so that said locking element (23) can be separated from said notch (212) that includes the braking element (21), in order to release the latter (Figure 4). In the present example of an embodiment of the invention, the locking element (23) will be provided with an end (231) of triangular section intended to fit the V-shaped section of the notch (212). ) that includes the braking element (21) (Figure 5);

- Elastic return means (24) which are secured to the locking mechanism (2) or the locking element (23), by support or anchoring on a fixed part of the body of the locking mechanism (2) or by support or anchoring on the locking element (23), as summarily shown in the form of a simple coil spring schematically in Figure 1, which can easily be made by those skilled in the art. The invention provides that said elastic return means (24) act directly or indirectly between said locking mechanism (2) and said locking element (23), in a direction generally perpendicular to the connecting arm (1);

- a movable carriage (3) (FIG 3), slidable along the link arm (1) on which it is mounted and with a limited clearance relative to the body of the locking mechanism (2), the translational guide longitudinal of said movable carriage (3) obtainable by means of at least one, but preferably two ribs (33) adapted to slide in at least one, but preferably two grooves (12) belonging to the connecting arm (1), while offering a certain resistance to the relative displacement between said movable carriage (3) and the connecting arm (1), thus making it possible to maintain the locking element ( 23) apart from the notch (212) that comprises the braking element (21), by a support of said locking element (23) on inclined ramps (32) described below, that comprises said movable carriage ( 3), (Fig. 4), when a relative movement occurs between the link arm (1) and the locking mechanism (2), the door stop device then being in unlocked mode. The relative sliding resistance between the connecting arm (1) and the movable carriage (3) can be obtained by simple friction between two contacting surfaces belonging respectively to each of these two elements, but also by the addition of a device braking system not described here, which may be constituted by at least one brake shoe secured to the movable carriage (3) and pushed by elastic means in contact with a surface belonging to the link arm (1), that the man of the art can achieve without difficulty. Again, the relative sliding resistance between the connecting arm (1) and the movable carriage (3) can be obtained by deformation of a deformable part not described here, located on one of the surfaces of the connecting arm (1). contacting a boss belonging to the mobile carriage (3), or coming into contact with a cylindrical roller, free to rotate and positioned in a semi-cylindrical housing located on a portion of the movable carriage (3) located in view of said deformable portion. Said deformable part may, for example, be made from elastomeric materials. The methods for obtaining the relative slip resistance between the link arm (1) and the mobile carriage (3) described above are not limiting and the skilled person can use other solutions available in the state of the art, without this modifying the invention. Also, the mobile carriage (3) is provided, according to the invention, with at least one, or even preferably two notches (31), whose shape is in all or in part similar to the notch (212) that includes the braking element (21), as well as at least two inclined ramps (32) located on either side of each of said notches (31). (Fig. 4). The invention further provides that said inclined ramps (32) that comprises the movable carriage (3) have an inclination with respect to the longitudinal axis of the connecting arm (1), which will be preferentially lower than the inclination of the walls notches (31) of said movable carriage (3), in order to limit the amplitude of the component parallel to the longitudinal axis of the link arm (1), of the force transmitted by the locking element (23) on said inclined ramps (32). According to the invention, the notches (31) of the mobile carriage (3) are designed to receive a portion of the end (231) of the element blocking means (23) and said notches (31) for this purpose are preferentially positioned laterally to the notch (212) of the braking element (21), so that when the locking element (23) is at bottom of said notch (212) in the locked position, the notches (31) of the movable carriage (3) will be juxtaposed and aligned relative to the notch (212), under the effect of the force exerted by the element of locking (23) simultaneously on the notch (212) of the braking element (21) and on the notches (31) of the movable carriage (3).

When in the locked position, a force greater than a predefined threshold appears on the connecting arm (1), the locking element (23) is pushed outwardly of the assembly constituted by the notches (212). and (31), to the point where the locking element (23) is no longer in contact with the notch (212) of the braking element (21), said locking element (23) does not being therefore maintained more than by the parts of the end (231) of said locking element (23), which were opposite the notches (31) of the movable carriage (3) and which are now support on the inclined ramps (32) of the mobile carriage (3) (Fig. 4 and 5). In this position, the link arm (1) is no longer blocked in translation by the braking element (21) and the door stop device is in unlocked mode. In this phase, the movable carriage (3) is subjected mainly to two opposing forces located in a direction parallel to the longitudinal axis of the connecting arm (1) and which are balanced. One of these forces corresponds to the force exerted by the locking element (23) on the inclined ramps (32) of the movable carriage (3), a force whose component parallel to the longitudinal axis of the linkage arm ( 1) opposes a sliding resistance force, which appears between the movable carriage (3) and the linkage arm (1), said sliding resistance force being due to the frictional forces experienced by the movable carriage (3). ) due to the relative movement thereof relative to the link arm (1). As soon as the movement of the connecting arm (1) ceases with respect to the locking mechanism (2), when the door is left in any open position, said sliding resistance force disappears, thereby breaking the balance of forces , and the locking element (23), under the effect of the elastic return means (24), causes the notches (31) of the movable carriage (3) to be aligned with the notch (212) of the braking element (21), the end (231) of the locking element (23) then being at the bottom of said notch (212). The door stop device is then again in the locked position. It should be noted that the notches (31) of the movable carriage (3) may not be positioned just laterally to the notch (212) of the braking element (21), but in a position slightly shifted for reasons of congestion for example, without this modifying the invention. In this case it would then be necessary to adapt the locking element (23) accordingly, by providing an element which replaces the end (231) of the locking element (23) and which would cooperate with the notches (31) of the movable carriage (3). Finally, the invention provides that in a preferred embodiment, the mobile carriage (3) can bear or slide in contact with at least one support zone (26), integral with the locking mechanism

(2), of preferentially flat and rectilinear shape (FIG 2), in order to take up the forces applied directly or indirectly by the locking element (23), on said movable carriage (3), in the locked or unlocked modes of the locking mechanism (2). Said support zone (26) may simply consist of one or more ribs integral with the walls of the locking mechanism (2), which the skilled person can achieve without difficulty.

Variant of the braking element (21) and the movable carriage (3) (Fig. 15): in a preferred embodiment, the braking element (21) and the movable carriage (3) can be secured so that to form one and the same room. The notch (212) that comprises the braking element (21) and which is intended to receive the locking element (23) will then be extended on each side by inclined ramps (32), the inclination of which will preferably be lower than the inclination of the walls of said notch (212) that comprises the braking element (21). Said inclined ramps (32) will bear on a surface (1 1 1) belonging to said connecting arm (1), in order to take up the force exerted by said locking element (23) when the door stop device is in position. unlocked mode. The assembly thus constituted by the braking element (21) and the movable carriage (3) together, can slide along said connecting arm (1) on which it is mounted and with a limited movement relative to the body of said mechanism locking member (2), while offering a certain resistance to displacement, thus making it possible to maintain said locking element (23) outside the notch (212) that comprises said assembly constituted by the braking element (21) and the mobile cart

(3) joined, by a support on the inclined ramps (32) that comprises said assembly constituted by the braking element (21) and the movable carriage (3) together, when a relative movement appears between the connecting arm ( 1) and the locking mechanism (2), the door stop device then being in unlocked mode. The relative sliding resistance between the link arm (1) and said assembly constituted by the braking element (21) and the movable carriage (3) together can be obtained by simple friction between two contacting surfaces respectively belonging to each of these two elements. In the nonlimiting example presented here, the surfaces (211 1) belonging to the assembly constituted by the braking element (21) and the movable carriage (3) together, which are advantageously situated under the inclined ramps (32). , come into contact with the surface portions (1 1 1) reserved for this purpose on the connecting arm (1), thereby producing a displacement resistance caused by the friction forces generated between the surfaces (21 1 1) and ( 1 1 1). The assembly constituted by the braking element (21) and the movable carriage (3) together, may be made of a sufficiently rigid elastomeric material to be able to achieve the notch (212) and the inclined ramps (32). Moreover, the selected elastomeric material will have good adhesion with respect to the material constituting the connecting arm (1) which will be provided in metal or plastic, for example.

Variant of the elastic return means (24) - (FIG 6 and 7): in a preferred embodiment, a variant of the elastic return means (24) may be constituted by the addition of a transmission means (241) provided between the elastic return means (24) on the one hand and the locking element (23) or the locking mechanism (2) on the other hand, said transmission means (241) consisting of at least two surface elements (241 1) and (2412), at least one of which is curved, said surface elements (241 1) and (2412) cooperating with each other in a relative motion in two directions generally perpendicular to each other, one of said surface elements (241 1) and (2412) being integral with the locking element (23), the other of said surface elements ( 241 1) or (2412) being secured to the locking mechanism (2) through the elastic return means (24) to which it is subjected. Said surface elements (241 1) and (2412) cooperate to transmit the force provided by the elastic return means (24) and so that the direction of the bearing force F (a) illustrated in FIG. Figures 6 and 7, transmitted to the point of contact between said surface elements (241 1) and (2412), evolves as the elastic return means (24) are compressed. Thus, when the angle defined by the direction of the force F (a) transmitted to the point of contact between said surface elements (241 1) and (2412), with respect to the compression direction of the elastic return means ( 24), is small, then the perpendicular component F (p) shown in Figures 6 and 7 acting on said locking member (23) is small, which has an advantage in unlocked mode (Fig. 7). Conversely, when the angle defined by the direction of the force F (a) transmitted to the contact point defined above, relative to the compression direction of the elastic return means (24) is close to 90 °, the perpendicular component F (p) acting on the locking element (23) is high , which has an advantage in locked mode (Fig.6). The purpose is to reduce the support force of said locking element (23) against the inclined ramps (32) of the movable carriage (3), when the door stop device is in unlocked mode, thereby reducing relative slip resistance between the link arm (1) and the movable carriage (3), necessary for the balance of forces experienced by the movable carriage (3) in said unlocked mode. Maneuvering the door in unlocked mode requires less effort. It will be noted that in a preferred embodiment and without modifying the invention, the surface elements (241 1) and (2412) can be integrated respectively in the locking element (23), in the form of a boss for the surface element (241 1), and integrated with the elastic return means (24) for the surface element (2412), for example when making the elastic return means (24) from blades resilient having a curved end, well known in the state of the art.

Another variant of the elastic return means (24) - (FIG 8 to 13):

According to the invention, the elastic return means (24) are integral with the locking mechanism (2) or the locking element (23) and act directly or indirectly between said locking mechanism (2) and said locking element (23) in a direction generally perpendicular to the link arm (1). According to one of the embodiments of the elastic return means (24), the invention proposes to modulate the value of the force supplied by said elastic return means (24), according to the inclination of the locking mechanism (2), this to enable the holding force to be modulated in locked mode, depending on the inclination of said locking mechanism (2). For this purpose, the invention proposes to replace the elastic return means (24) by a superposition of the effects of at least two distinct elastic return means (24) and (29) (FIG. so that the efforts they provide can accumulate in the same direction, when a mechanical connection means (291) described below, is interposed under the simple effect of gravity, between said separate elastic return means (24) and (29), or between one of the separate elastic return means (24) or (29) and the locking mechanism (2). In the present example of an embodiment of the invention, we will choose to interpose a mechanical connection means (291) between the elastic return means (29) made according to the invention. first variant exposed above and the locking mechanism (2). The mechanical connecting means (291) acting under the simple effect of gravity can advantageously be formed of a spherical ball (291), housed in a resistant conical surface (292) (FIG 8), said conical resistant surface (292). ) being mechanically connected to the elastic return means (29) (FIG.8), by any means known in the state of the art, or without this having any effect on the invention, said conical resistant surface ( 292) being integral with the locking mechanism (2) (Fig. 1 1), with in this case a mounting of the door stop device in an inverted position ("upside-down") with respect to the illustration shown in FIG. Figure 8. Said resistant conical surface (292) is further centered with respect to a rigid surface (293) which is located on the locking mechanism (2) (Fig. 8), or which is located on an integral part of the elastic return means (29) (Fig. 1 1), when the conical surface resembles istante (292) is itself secured to the locking mechanism (2). Said rigid surface (293) has in its center a cavity (2931), to accommodate the spherical ball (291) when the conical surface resistant (292) and the rigid surface (293) are close to one another (Fig. 9 and Fig. 12) as a result of the movement of the locking element (23), while the spherical ball (291) has remained in the center of the conical resistant surface (292), under the effect of the gravity. In this case, the elastic return means (29) are not put in compression during the movement of the locking element (23), and therefore do not participate in the force inflicted on the locking element (23). ). Conversely, when the spherical ball (291) leaves the center of the conical surface (292) under the effect of gravity, due to an inclination of the door stop device beyond a predetermined threshold by the angle of the cone that forms the conical surface resistant (292), said spherical ball (291) is interposed between the conical surface resistant (292) and the rigid surface (293), thus constituting a mechanical link allowing the elastic return means (29) being brought into compression by the movement of the locking element (23), thus causing an accumulation of the forces provided by the separate elastic return means (24) and (29) (FIG. 10 and 13). Thus, when the inclination of the door stop device remains below a certain predetermined threshold, the elastic return means (29) are not stressed by the displacement of the locking element (23) and the the resultant force on said locking element (23) is lower. Conversely, when the inclination of the door stop device exceeds a certain predetermined threshold, the elastic return means (29) are actuated at the same time as the means of rotation. elastic return (24) by the displacement of the locking element (23) and the resulting force on said locking element (23) is greater.

Variation of the connecting arm (1) (Fig. 14):

The connecting arm (1), described above, provides the connection between the frame of the door and the locking mechanism (2) when the latter is secured to the opening. Conversely, if the locking mechanism (2) has been provided to be secured to the frame of the door, then the connecting arm (1) provides the connection between the opening and the locking mechanism (2).

In either case, during opening or closing maneuvers of the opening, the connecting arm (1) transmits the forces resulting from the relative movement of the opening, the locking mechanism (2) then being in unlocked mode. Furthermore, the connecting arm (1) transmits the forces associated with maintaining the opening in a fixed open position when the locking mechanism (2) is in the locked position. Also, when the door arrives in its fully open position, it may be interesting, as is the case on most door stop devices known in the state of the art, to provide a so-called device "End of race", intended to ensure that the link arm (1) will ensure the shutter is stopped so that the latter can not go beyond its full opening point, which could damage the opening or the bodywork of the motor vehicle. The end-of-travel devices known in the state of the art generally consist of rigid stops, sometimes provided with buffers of elastic materials in order to limit the shocks during too abrupt openings of the opening. Also, the invention provides that the connecting arm (1) may comprise at its free end, a cylindrical portion (15), juxtaposed to said connecting arm (1), preferably opposite the face (1 1) intended it, to cooperate with the braking element (21), the axis of said cylindrical portion (15) being preferably parallel to the longitudinal axis of the connecting arm (1). Said cylindrical part (15) will be designed to penetrate into a cylindrical cavity (27) integral with the locking mechanism (2), said cylindrical cavity (27) itself being provided so that the dimensions of its cross-section are hardly greater than the dimensions of the cross section of the cylindrical portion (15), so that the penetration of this cylindrical portion (15) into the cylindrical cavity (27) is done with a reduced clearance between the walls of these two elements during the full opening the door. The purpose is to trap a volume of compressed air inside the cylindrical cavity (27) under the effect of the penetration of the cylindrical portion (15) which then acts as a piston, which will have the effect of damping the end of travel of the connecting arm (1). Also, just after immobilization of the connecting arm (1) in its end position, the possible leakage flow between the walls of the cylindrical portion (15) and the cylindrical cavity (27) will quickly drop the air pressure trapped in the cylindrical cavity (27). The invention further provides that the cylindrical cavity (27) may be made from an elastomeric material, such that the dimensions of the cross section of said cylindrical cavity (27) are slightly smaller than the dimensions of the cross-section of the cylindrical cavity (27). the cylindrical part (15), so that the penetration of said cylindrical part (15) inside said cylindrical cavity (27) operates with a braking effect, due to the deformation of the elastomeric material constituting the cavity cylindrical (27) during the penetration of the cylindrical portion (15). Finally, the invention provides that an elastic element (271) can be placed in the cylindrical cavity (27), in order to contribute to damping the end of travel of the connecting arm (1), due to the compression of the elastic member (271) by the cylindrical portion (15) during the penetration thereof into the cylindrical cavity (27). The elastic element (271) will not be described here, but may be constituted by way of non-limiting example, by a helical spring, an elastomeric block or any other elastically deformable element, known in the state of the art.

Claims

1 / Door stop device, comprising a connecting arm (1) and a locking mechanism (2), one being secured to the opening of the door, the other of the frame, said link arm (1) comprising at least one face (1 1) intended to cooperate with said locking mechanism (2) which comprises for this purpose a braking element (21) bearing on said face (1 1) of the connecting arm (1), said braking element (21) being controlled by a locking element (23) movably mounted on the locking mechanism (2), in a direction generally perpendicular to the connecting arm (1), said locking element ( 23) bearing in a notch (212) provided on the braking element (21), and said locking element (23) cooperating with elastic return means (24) acting directly or indirectly on said locking element (23), to exert pressure through said element of locking (23) on the braking element (21), thus allowing the door to be held in relative open position in any position between the closed position and the full opening, characterized in that:

said face (1 1) of the connecting arm (1) has a surface state whose characteristics allow a frictional adhesion between the braking element

(21) and the face (1 1) of the connecting arm (1);

- said braking element (21) has a face (21 1) which can bear with adhesion on said face (1 1) of the connecting arm (1);

said braking element (21) is mounted movably with respect to the locking mechanism (2), in a direction parallel to said connecting arm (1) and in a limited movement by elastic return means (22) which cooperate with the locking mechanism (2) for returning said braking element (21) to the position where said notch (212) of the braking element (21) is opposite the locking element ( 23), since said locking element (23) no longer exerts pressure on said braking element (21) when the door stop device is in unlocked mode; said locking element (23) can be moved away from the notch (212) that the braking element (21) has in order to release said braking element (21); the elastic return means (24) integral with the locking mechanism (2) or the locking element (23) act directly or indirectly between said locking mechanism (2) and said locking element (23), in a direction generally perpendicular to the link arm (1);

- a movable carriage (3) slides along the connecting arm (1) on which it is mounted and with a limited movement relative to the body of the locking mechanism (2), while offering resistance to relative movement between said mobile carriage (3) and the connecting arm (1);

said movable carriage (3) is provided with at least one notch (31), the shape of which is wholly or partly similar to the notch (212) that comprises the braking element (21), as well as at least two inclined ramps (32) located on either side of said notch (31) of the movable carriage (3) and provided to maintain the locking element (23) when the stop device of door is in the unlocked position, while said notch (31) of the movable carriage (3) is adapted to receive a portion of the end (231) of the locking element (23) and said notch (31) of the carriage mobile (3) is preferably positioned laterally to the notch (212) of the braking element (21), so that when the locking element (23) is at the bottom of said notch (212) in the locked position , the notch (31) of the movable carriage (3) is juxtaposed and aligned with respect to the notch (212) of the element brake (21), under the effect of the force exerted by the locking element (23);

- when a force greater than a predefined threshold appears on the link arm (1), the locking element (23) is pushed outwardly of the assembly constituted by the notches (212) and (31). ), to the point where the locking element (23) is no longer in contact with the notch (212) of the braking element (21), the said locking element (23) not being more maintained than by the portions of the end (231) of said locking element (23) which were opposite the notches (31) of the movable carriage (3) and which are now supported on the ramps inclined (32) of the movable carriage (3), the link arm (1) is then no longer locked in translation by the braking element (21) and the door stop device is then in unlocked mode. Door shut-off device according to claim 1, characterized in that the elastic return means (24) consist of the addition of a transmission means (241) provided between the elastic return means (24). on the one hand, and the locking element (23) or the locking mechanism (2) on the other hand, said transmission means (241) consisting of at least two surface elements (2411) and (2412), at least one of which is curved in shape, said surface elements (241 1) and (2412) cooperating with each other in a relative motion in two directions generally perpendicular to each other , while said surface elements (241 1) and (2412) cooperate to transmit the force provided by the elastic return means (24), so that the direction of the bearing force transmitted to the contact between said surface elements (241 1) and (2412), evolves as the means of rap Elastic pel (24) are compressed.

3 / A door stop device according to claim 1, characterized in that a superposition of the effects of at least two separate elastic return means (24) and (29), allows to cumulate the efforts they provide in the same direction, when a mechanical connection means advantageously formed of a spherical ball (291) is interposed by the simple effect of gravity, between said separate elastic return means (24) and (29), or again between the elastic return means (29) and the locking mechanism (2), while said spherical ball (291) is housed in a resistant conical surface (292) mechanically connected to the elastic return means (29) or to the locking mechanism (2), said conical resistant surface (292) being furthermore centered in relation to a rigid surface (293) located on the locking mechanism (2) or integral with the elastic return means ( 29), said rigid surface (293) comprises in its center a cavity (2931) for receiving the spherical ball (291) when the conical resistant surface (292) and the rigid surface (293) approach one another, following the movement of the locking element (23), while the spherical ball (291) has remained in the center of the conical surface (292), under the effect of gravity, the elastic return means (29) then not being put in compression during the movement of the locking element (23), while conversely, when the spherical ball (291) leaves the center of the conical resistant surface (292) due to an inclination of the device gate stop, said spherical ball (291) is interposed between the conical resistant surface (292) and the rigid surface (293), allowing the return means elastic (29) to be put in compression by the movement of the locking element (23), thereby causing an accumulation of efforts provided by the separate elastic return means (24) and (29).

4 / Door stop device according to one of claims 1 to 3, characterized in that the braking element (21) and the movable carriage (3) are made integral so as to form a single piece, while the notch (212) which the braking element (21) comprises is extended on each side by inclined ramps (32) which bear on a surface (1 1 1) belonging to said connecting arm (1), to take up the force exerted by the locking element (23) when the door stop device is in unlocked mode; the assembly thus constituted by the braking element (21) and the movable carriage (3) together, can slide along said connecting arm (1) on which it is mounted and with a limited movement relative to the body of said mechanism locking member (2), while providing resistance to movement, thereby maintaining said locking member (23) out of the notch (212) by pressing on said inclined ramps (32) when a movement relative movement occurs between the link arm (1) and the locking mechanism (2), the door stop device then being in the unlocked mode, while the relative sliding resistance between the link arm (1) and said set formed by the braking element (21) and the movable carriage (3) together, can be obtained by simple friction between two surfaces in contact respectively belonging to each of these two elements.

5 / device for stopping door according to one of claims 1 to 4, characterized in that the connecting arm (1) comprises at its free end, a cylindrical portion (15), juxtaposed to said connecting arm (1 ) and designed to penetrate a cylindrical cavity (27), integral with the locking mechanism (2), while the dimensions of the cross-section of said cylindrical cavity (27) are greater than the dimensions of the cross-section of the cylindrical portion ( 15), so that the penetration of this cylindrical portion (15) in the cylindrical cavity (27) is done with a reduced clearance between the walls of these two elements during the full opening of the door, while an elastic member ( 271), can be placed in the cylindrical cavity (27), in order to contribute to damping the end of travel of the connecting arm (1), due to the compression of the elastic element (271) by the cylindrical part (15). ), during its penetration into the cavity c ylindrique (27). 6 / Door stop device according to claim 5, characterized in that the cylindrical cavity (27) is made from an elastomeric material, such that the dimensions of the cross section of said cylindrical cavity (27) are smaller than the cross-sectional dimensions of the cylindrical portion (15), so that the penetration of said cylindrical portion (15) into said cylindrical cavity (27) occurs with a braking effect, due to the deformation of the constituent elastomeric material of the cylindrical cavity (27) during the penetration of the cylindrical portion (15). 7 / automobile door, characterized in that it comprises a door stop device according to one of claims 1 to 6;

8 / Building door, characterized in that it comprises a door stop device according to one of claims 1 to 6.