FR3121161A1 - Barrel of a motor vehicle door opening control - Google Patents

Abstract

The invention relates to a barrel (9) of a door opening control for a motor vehicle. The barrel (9) according to the invention comprises a cylindrical barrel (12) formed by an outer cylindrical bearing (20) and an inner cylindrical bearing (30) extending in the extension of the outer cylindrical bearing (20). The outer cylindrical bearing (20) and the inner cylindrical bearing (30) are coaxial. According to the invention, the outer cylindrical bearing (20) comprises a through opening (21) configured to allow a flow of a fluid from inside the outer cylindrical bearing (20) out of the barrel (9). Figure to be published with abstract: Fig. 3

Description

Barrel of a motor vehicle door opening control

The technical context of the present invention is that of motor vehicle doors, and more particularly doors fitted with locks as well as the systems associated with them. More particularly, the invention relates to a barrel of a door opening control for a motor vehicle.

In the state of the art, motor vehicle openings are known, such as doors, the opening of which is permitted by means of a mechanical system comprising a locking mechanism, such as a mechanical lock, and an exterior opening control. , also called “COE”. The exterior opening control is housed in a housing fitted in the opening, and its manipulation transmits a force to the mechanical lock to unlock it and allow the opening of the door.

The disadvantage of these mechanical door opening systems is that quality defects are observed following an accumulation of water in said system. Water accumulated in the mechanical system leads to its oxidation and results in blocking of the external opening control of said door. This lack of functionality creates a major safety risk for users of the motor vehicle. In addition, in the event of frost, water stagnating in the mechanical system also leads to blockage of the door opening.

The object of the present invention is to propose a new cylinder for a door opening control for a motor vehicle in order to respond at least in large part to the above problems and also to lead to other advantages.

Another object of the invention of the invention is to prevent the retention of water in such a barrel of a door opening control for a motor vehicle.

Another object of the invention is to provide a cylinder for a door opening control for a motor vehicle which is reliable in its operation, and as a cylinder.

Another object of the invention is to provide a cylinder for a door opening control for a simple motor vehicle, both from the point of view of its implementation and from the point of view of its manufacture.

Another object of the invention is to provide a barrel for a door opening control for a motor vehicle which is inexpensive, so as to limit the cost of such a barrel compared to the door opening control barrels of existing motor vehicle door.

Another object of the invention is to provide a cylinder for a door opening control for a motor vehicle which is universal and configured to adapt to different motor vehicles.

According to a first aspect of the invention, at least one of the aforementioned objectives is achieved with a barrel of a door opening control for a motor vehicle, the barrel comprising a cylindrical barrel formed by an external cylindrical bearing surface and a bearing surface internal cylindrical bearing coaxial with the external cylindrical bearing surface and extending in the extension of the external cylindrical bearing surface, the external cylindrical bearing bearing having a through opening configured to allow a flow of a fluid from the interior of the external cylindrical bearing surface out of the barrel .

In the barrel according to the first aspect of the invention, the outer cylindrical bearing surface is intended to be located on an exterior side of the motor vehicle door on which the opening control barrel is intended to be mounted, relative to a passenger compartment of said motor vehicle. The internal cylindrical bearing surface is intended to be located on an interior side of the motor vehicle door on which the opening control barrel is intended to be mounted, that is to say on the side of the passenger compartment of said vehicle automobile.

The barrel according to the invention is intended to equip a door opening control, advantageously a mechanical opening control.

The interior and exterior adjectives are, for the cylindrical bearing surfaces forming the barrel, considered relative to a central axis of the barrel. The adjective interior therefore designates a part of the barrel located in the direction of the central axis of the barrel, while the adjective exterior designates a part of the barrel located at a distance from the central axis.

Such a barrel, provided with a through opening extending into the outer cylindrical bearing surface, makes it possible to ensure evacuation of fluid, particularly in the liquid state, from the interior of the outer cylindrical bearing surface out of the barrel. Thus, this solution makes it possible to preserve the barrel from significant water stagnation, while being simple to implement. The cylinder according to the invention has the advantage of overcoming the drawbacks mentioned above, without having to make any significant modification to the door opening control that it equips.

The barrel of a door opening control for a motor vehicle in accordance with the first aspect of the invention advantageously comprises at least one of the improvements below, the technical characteristics forming these improvements being able to be taken alone or in combination:

- the through opening is located at an axial end of the outer cylindrical bearing surface. The cylindrical bearing includes two axial ends, a proximal axial end of the inner cylindrical bearing, and a distal axial end of the inner cylindrical bearing. Advantageously, the axial end is an axial end of the external cylindrical bearing surface which is fixed integrally to the internal cylindrical bearing surface in the cylindrical barrel. The axial end is opposite a distinct, free axial end, which is distal to the internal cylindrical bearing surface and is located on the exterior side of the motor vehicle door on which the opening control cylinder is intended to be mounted, relatively to a passenger compartment of said motor vehicle;

- the axial end of the external cylindrical bearing surface is proximal to the internal cylindrical bearing surface. Advantageously, the axial end, proximal to the internal cylindrical bearing surface, is the axial end of the external cylindrical bearing surface which is firmly fixed to the internal cylindrical bearing surface in the cylindrical barrel;

- the through opening is oriented in such a way that it forms a low point for the external cylindrical bearing surface, allowing fluid flow by simple gravity effect. It is understood that in such a barrel, a fluid contained by the external cylindrical bearing naturally flows, under the action of gravity, out of said external cylindrical bearing via the through opening. By forming a low point for the cylindrical seat, the through opening reduces the amount of stagnant fluid within the outer cylindrical seat;

- the through opening takes the form of a circumferential groove made in the outer cylindrical bearing surface. By circumferential groove is meant the fact that the through opening forms a hollow, long and narrow notch. A transverse profile of the circumferential groove is hollow and describes a curved line, so that a groove bottom is the deepest part of the groove;

- relative to a central axis of the barrel, the circumferential groove is delimited radially inwards by a longitudinal end of the internal cylindrical bearing surface forming a shoulder for the external cylindrical bearing surface. In other words, the circumferential groove extends from the axial end of the external cylindrical bearing and beyond the shoulder forming the longitudinal end of the internal cylindrical bearing;

- radially, the circumferential groove forming the through-opening is housed in a peripheral housing of the outer cylindrical bearing surface intended to receive the opening control locking members. Such a circumferential groove opens out behind and at a distance from the outer cylindrical bearing surface. By “remote” is meant that the circumferential groove opens beyond the external cylindrical bearing surface, at least at the level of the internal cylindrical bearing surface;

- an inner face of the external cylindrical bearing is, at the level of the through opening, parallel and coaxial with an outer face of the external cylindrical bearing. The inner face of the outer cylindrical bearing delimits a space inside said outer cylindrical bearing and is opposite an outer face of the outer cylindrical bearing. An inner face of the inner cylindrical bearing defines a space inside said inner cylindrical bearing and is opposite the outer face of the inner cylindrical bearing. Thus, the through opening forms a difference in level between the inner face of the outer cylindrical bearing and the inner face of the inner cylindrical bearing in favor of a flow out of the interior space of the outer cylindrical bearing;

- according to a longitudinal section of the barrel, an inner face of the outer cylindrical bearing surface forms a slope in the direction of the through opening. By forming a slope in the direction of the through opening, the inner face of the outer cylindrical bearing surface facilitates fluid flow by simple gravity effect outside the barrel according to the invention.

According to a second aspect of the invention, a motor vehicle door mechanical opening control is proposed, the opening control comprising a cylinder according to the first aspect of the invention or according to any one of its improvements, the barrel being housed and movable in rotation and in translation in a stator of the opening control.

The stator of the mechanical opening control is a fixed element of the mechanical opening control with respect to the barrel which is a mobile element of the mechanical opening control. In the mechanical opening control, the barrel is intended to be actuated in rotation and/or in translation in the stator, to unlock the mechanical opening control.

According to a third aspect of the invention, there is proposed a motor vehicle comprising a door equipped with a mechanical opening control according to the second aspect of the invention or according to any one of its improvements.

Various embodiments of the invention are provided, integrating according to all of their possible combinations the various optional characteristics set out here.

Other characteristics and advantages of the invention will become apparent through the description which follows on the one hand, and several embodiments given by way of indication and not limiting with reference to the appended diagrammatic drawings on the other hand, on which :

illustrates a schematic view of a motor vehicle according to the third aspect of the invention;

illustrates a schematic view of a motor vehicle door mechanical opening control according to the second aspect of the invention;

illustrates a cross-sectional view of a barrel of a motor vehicle door opening control according to the first aspect of the invention;

illustrates a transverse profile of the barrel in accordance with the first aspect of the invention shown in ;

illustrates a transverse profile of the opening control according to the second aspect of the invention shown in ;

illustrates an implementation of the opening control according to the second aspect of the invention shown in .

Of course, the characteristics, the variants and the different embodiments of the invention can be associated with each other, according to various combinations, insofar as they are not incompatible or exclusive of each other. In particular, variants of the invention may be imagined comprising only a selection of characteristics described below in isolation from the other characteristics described, if this selection of characteristics is sufficient to confer a technical advantage or to differentiate the invention from to the state of the prior art.

In particular, all the variants and all the embodiments described can be combined with each other if nothing prevents this combination from a technical point of view.

In the figures, the elements common to several figures retain the same reference.

The illustrates a schematic view of a motor vehicle 1 according to the third aspect of the invention. In the remainder of the description, a frame of reference is defined in which a longitudinal axis OX, a transverse axis OY and a vertical axis OZ are defined. The longitudinal axis OX corresponds to a trajectory of the motor vehicle 1 when it is in forward motion, in a straight line and on a flat road. The longitudinal axis OX corresponds to a direction running from the front to the rear of the motor vehicle 1, and it is oriented from the front to the rear of the motor vehicle 1. A longitudinal direction parallel to the longitudinal axis OX, the adjectives "front", "rear" or "frontal" refer to this reference direction, the term "length" also. The transverse axis OY corresponds to the axis around which wheels 2 of the motor vehicle 1 rotate, and the direction of the axis OY is oriented from a passenger side to a driver's side 6, in the non-Anglo-Saxon standard. A transverse direction parallel to the transverse axis OY is also defined, and the adjectives “lateral” or “transverse” refer to this reference direction, the term “width” also. The vertical axis OZ is an axis perpendicular simultaneously to the axis OX and to the axis OY, and which is oriented from a floor of the motor vehicle 1 towards a roof of said motor vehicle 1, the adjectives “upper” and “lower” refer to this reference direction, the term "height" also.

The shows that the motor vehicle 1 according to the third aspect of the invention comprises a door 3 equipped with a mechanical opening control 4 according to the second aspect of the invention. It is understood that the mechanical opening control 4 according to the second aspect of the invention is housed in a housing provided in the door 3 of the motor vehicle 1, said housing being not shown. In this case, the door 3 equipped with the mechanical opening control 4 is a front side door allowing access to a passenger compartment 5 of the motor vehicle 1, on the driver's side 6. In the following description, an exterior side 7 of the door 3 of the motor vehicle 1 and an interior side 8 of the door 3 of the motor vehicle 1 are defined relative to the passenger compartment 5 of said motor vehicle 1. The mechanical opening control 4 is accessible to a user from the exterior side 7 of door 3 of motor vehicle 1.

The illustrates a schematic view of the mechanical opening control 4 in accordance with the second aspect of the invention, intended to equip the door 3 of the motor vehicle 1.

The mechanical opening control 4 according to the second aspect of the invention illustrated in comprises a cylinder 9 in accordance with the first aspect of the invention. The barrel 9 cooperates with a stator 10 of the mechanical opening control 4, in which it is housed. Barrel 9 extends along a central axis 11, oriented along transverse axis OY. Barrel 9 is rotatable along central axis 11 of barrel 9 in stator 10 of opening control 4 mechanically. The barrel 9 is movable in translation along the central axis 11 of the barrel 9 in the stator 10 of the opening control 4 mechanical.

In the motor vehicle 1 equipped with the mechanical opening control 4 in accordance with the second aspect of the invention, this mobility in rotation and in translation of the barrel 9 relative to the stator 10, is induced by means of a key or by actuating a handle of the opening control 4, and allows a user to unlock the opening of the door 3 of the motor vehicle 1 by the mechanical opening control 4.

With reference to FIGURES 3 and 4, the cylinder 9 according to the first aspect of the invention is illustrated. The illustrates a cross-section AA shown in and passing through the central axis 11 of the barrel 9. The shows a transverse profile of the barrel 9, the transverse profile of the barrel 9 corresponding to the transverse section AA shown in .

The barrel 9 according to the invention illustrated in FIGURES 3 and 4 comprises a cylindrical barrel 12 formed by an outer cylindrical bearing surface 20 and an inner cylindrical bearing surface 30. In the barrel 9 according to the first aspect of the invention, the outer cylindrical bearing surface 20 is intended to be located on the exterior side 7 of the door 3 of the motor vehicle 1. The internal cylindrical bearing surface 30 is intended to be located on the interior side 8 of the door 3 of the motor vehicle 1.

FIGURES 3 and 4 show that the internal cylindrical bearing surface 30 of the barrel 9 in accordance with the first aspect of the invention extends in the extension of the external cylindrical bearing surface 20. The internal cylindrical bearing surface 30 and the external cylindrical bearing surface 20 are coaxial, both extending along the central axis 11 of the cylinder 9. A longitudinal end 31 of the internal cylindrical bearing 30 forms a shoulder 32 for the external cylindrical bearing 20 at the level of a lower part 13 of the cylinder 9 according to the invention .

FIGURES 3 and 4 show that the outer cylindrical bearing surface 20 of the cylinder 9 according to the first aspect of the invention comprises a through opening 21 located at the level of an axial end 22 of the outer cylindrical bearing surface 20. The axial end 22 of the external cylindrical bearing surface 20 is proximal to the internal cylindrical bearing surface 30 and opposite to another axial end 23 intended to be oriented on the exterior side 7 of the door 3 of the motor vehicle 1. The through opening 21 is provided at the level of the part bottom 13 of barrel 9 according to the invention and oriented in such a way that it forms a low point for the outer cylindrical bearing surface 20.

FIGURES 3 and 4 show that, in the cylinder 9 according to the first aspect of the invention, each cylindrical bearing surface 20, 30 of the cylindrical barrel 12 comprises an interior space 24, 34. An interior space 24 of the external cylindrical bearing surface 20 is capable of seeing a fluid, in particular water, infiltrate, for example from the outer side 7 of the door 3 of the motor vehicle 1. In accordance with the invention, the through opening 21 of the outer cylindrical bearing surface 20 allows this water to be evacuated by gravity effect, without stagnating in the interior space 24 of the outer cylindrical bearing 20. The through opening 21 of the outer cylindrical bearing 20 thus prevents deterioration and/or seizure of the barrel 9 according to the invention, induced by oxidation of barrel 9 caused by water or induced by the freezing of this water in cold conditions.

FIGURES 3 and 4 show that the through opening 21 of the outer cylindrical bearing surface 20 of the barrel 9 in accordance with the first aspect of the invention takes the form of a groove with a curved bottom 26, called the circumferential groove 25, made in the bearing surface. outer cylindrical 20. Relative to the central axis 11 of the barrel 9, the circumferential groove 25 is delimited radially inwards by the shoulder 32 of the inner cylindrical bearing surface 30.

The shows that the outer cylindrical bearing surface 20 of the barrel 9 in accordance with the first aspect of the invention is delimited by an inner face 27 opposite an outer face 28. The inner cylindrical bearing surface 30 is delimited by an inner face 37 opposite an outer face 38 The inner face 27 of the outer cylindrical bearing surface 20 is, at the level of the through opening 21, parallel and coaxial with the outer face 28 of the outer cylindrical bearing surface 20.

The shows that the outer cylindrical bearing surface 20 of the barrel 9 according to the first aspect of the invention comprises a peripheral housing 29 intended to receive locking members of the mechanical opening control 4.

FIGURES 5 and 6 show the transverse profile of the barrel 9 according to the invention cooperating with the stator 10 of the mechanical opening control 4. Radially, the circumferential groove 25 forming the through opening 21 is housed in the peripheral housing 29 of the outer cylindrical bearing 20 under the inner cylindrical bearing 30.

The illustrates an implementation of the mechanical opening control 4 in accordance with the second aspect of the invention shown in . An arrow 100 represents a flow of a fluid, for example liquid water. The through opening 21 of the outer cylindrical bearing surface 20 allows the flow of fluid by gravity effect, in other words from top to bottom, from the interior space 24 of the outer cylindrical bearing surface 20 out of the barrel 9. The fluid flows flows from the interior space 24 along the interior face 27 of the outer cylindrical surface 20, then through the through opening 21, in other words along the bottom 26 of the circumferential groove 25, and emerges beyond the internal cylindrical bearing surface 30, on the interior side 8 of the door 3 in the motor vehicle 1.

In summary, the invention relates to a barrel 9 of a door 3 opening control 4 for a motor vehicle 1. The barrel 9 according to the invention comprises a cylindrical barrel 12 formed by an external cylindrical bearing surface 20 and an internal cylindrical bearing surface 30 extending in the extension of the outer cylindrical bearing 20. The outer cylindrical bearing 20 and the inner cylindrical bearing 30 are coaxial. In accordance with the invention, the outer cylindrical bearing 20 comprises a through opening 21 configured to allow a flow of a fluid from inside the outer cylindrical bearing 20 out of the barrel 9.

Of course, the invention is not limited to the examples which have just been described and many adjustments can be made to these examples without departing from the scope of the invention. In particular, the different characteristics, forms, variants and embodiments of the invention may be associated with each other in various combinations insofar as they are not incompatible or exclusive of each other. In particular, all the variants and embodiments described above can be combined with each other.

Claims (9)

Barrel (9) of a door (3) opening control (4) for a motor vehicle (1), the barrel (9) comprising a cylindrical barrel (12) formed by an outer cylindrical bearing surface (20) and a inner cylindrical seat (30) coaxial with the outer cylindrical seat (20) and extending in the extension of the outer cylindrical seat (20), the outer cylindrical seat (20) comprising a through opening (21) configured to allow a flow of a fluid from inside the outer cylindrical bearing surface (20) out of the barrel (9). Barrel (9) according to the preceding claim, in which the through opening (21) is located at the level of an axial end (22) of the external cylindrical bearing surface (20). Barrel (9) according to the preceding claim, in which the axial end (22) of the external cylindrical bearing (20) is proximal to the internal cylindrical bearing (30). Barrel (9) according to any one of the preceding claims, in which the through-opening (21) is oriented in such a way that it forms a low point for the external cylindrical seat (20), allowing the flow of the fluid simply by gravity. Barrel (9) according to any one of the preceding claims, in which the through-opening (21) takes the form of a circumferential groove (25) made in the outer cylindrical bearing surface (20). Barrel (9) according to the preceding claim, in which, relative to a central axis (11) of the barrel (9), the circumferential groove (25) is delimited radially inwards by a longitudinal end (31) of the cylindrical surface internal (30) forming a shoulder (32) for the external cylindrical surface (20). Barrel (9) according to any one of the preceding claims, in which an inner face (27) of the outer cylindrical surface (20) is, at the level of the through opening (21), parallel and coaxial with an outer face ( 28) of the outer cylindrical bearing (20). Mechanical opening control (4) of the door (3) of the motor vehicle (1), the opening control (4) comprising a cylinder (9) according to any one of the preceding claims, the cylinder (9) being housed and movable in rotation and in translation in a stator (10) of the opening control (4). Motor vehicle (1) comprising a door (3) equipped with a mechanical opening control (4) according to the preceding claim.