WO2005111352A1

WO2005111352A1 - Motor vehicle with a two-way opening access panel, method for mounting same and hinge lock

Info

Publication number: WO2005111352A1
Application number: PCT/FR2005/000893
Authority: WO
Inventors: Gérard Queveau; Paul Queveau; Jean-Marc Guillez
Original assignee: Heuliez
Priority date: 2004-04-26
Filing date: 2005-04-13
Publication date: 2005-11-24

Abstract

A motor vehicle of the type including a body and at least one two-way opening access panel (1) having a first (2) and a second (2') access panel opening and closing axis, each arranged at one of the facing edges of said panel (1); a first and second means for coupling the panel (1) to the body, arranged respectively on the first (2) and second (2') axis, each of said coupling means including at least two hinges (5, 6, 5', 6') attached to the body, wherein the panel (1) is provided with a series of at least two hooks (7, 8, 7', 8') controlled in such a way that, once the panel (1) is mounted to the body, it can selectively open about the first axis (2) or the second axis (2'). The invention also relates to a method for assembling such a vehicle, and to a hinge lock fitted thereto.

Description

Motor vehicle comprising a two-way opening opening, mounting method and hinge lock

The invention relates to a motor vehicle of the type comprising one or more openings with a double opening direction, such as a side door or a rear door, as well as a method of assembling such a vehicle.

The invention also relates to a hinge lock fitted to such openings.

Are already known, in particular from document FR-A-2 777 241, in the name of the applicant, discoverable vehicles with a folding roof, comprising a rear trunk, the hood of which has a two-way opening direction, namely from the front towards back or back to front.

However, in such vehicles, each lock on the trunk cover is provided with its own control mechanism, which makes the application of such devices to vehicle doors relatively complex.

In addition, each hinge latch of the trunk cover includes a hinge and a hook directly in contact with each other, when the hook is in the closed position, which can, after a certain number of uses, pose problems in terms of wear of said hinge lock.

The present invention aims to improve such vehicles, by providing a vehicle comprising at least one opening, with a two-way opening, the opening / closing control of which is simple. In addition, this opening is simple in structure. Indeed, the vehicle locks which also form a hinge comprise a reduced number of parts, arranged to facilitate the opening, respectively the closing, of said opening window when assembled, as well as the assembly of the opening door on the vehicle body, during its assembly. In particular, such an arrangement makes it possible to facilitate the automation of the mounting of said opening on the body. Thus, the opening is easy to mount on the vehicle body during installation, and can also be easily operated by the user. Such an arrangement also has the advantage of said opening, compared to known opening.

The present invention also aims to propose a hinge lock designed to limit the friction between the hinge and the hook, when the latter are in contact with one another, and consequently to limit the wear due to uses. repeated. To this end, the invention provides a motor vehicle of the type comprising a body and at least one opening with a two-way opening, such as a side door, a boot lid or a rear door, said opening comprising:

- a first and a second opening, respectively closing axis of the opening, each disposed at one of the opposite edges of the door;

- a first and a second means of association of the opening with the body arranged respectively on the first and the second opening axis, respectively closing, said association means comprising at least two hinges spaced on the axis d opening, respectively closing, and fixed on the body, the opening being provided at each of said edges with a group of at least two hooks coming in a first position to lock on the hinges so as to constitute the axis d opening, respectively closing, corresponding, and in a second position unlocking and thus releasing the opening, each of the two groups of hooks having a common control mechanism, the two groups of hooks being controlled so that a once installed on the body, the opening can open as desired around the first axis or around the second axis by locking / unlocking the respective hooks, said vehicle being characterized in that the control of each of the hooks groups mechanism is constituted by a rod mounted in translation, the hooks being attached to said connecting rod so as to lock and unlock with respect to the hinge by translational movement of the connecting rod, said control mechanisms being connected by said connecting rod to the same actuator arranged in the opening.

According to a second aspect, the invention proposes a method of assembling such a motor vehicle, comprising the following successive steps: - fixing the hinges on the body of the vehicle so as to form the first and second axes;

- installation of groups of hooks and their control mechanism in the opening;

- unlocking of all hooks; - Presentation of the opening on the body so that the hooks are located substantially opposite the hinges;

- positioning of the sash on the vehicle;

- locking of a group of hooks, or of all the hooks on the hinges.

Finally, according to a third aspect, the invention provides a hinge lock for an opening, such as a door or a boot lid of a motor vehicle, comprising a hinge and a hook, said hook being mounted movably on a support and being arranged to pivot between a closed position allowing rotation of the hinge relative to the support, and an open position in which the hinge is released from the support, comprising:

- An intermediate element disposed between the hinge and the hook, said element being mounted to rotate freely around the hinge, and;

immobilization means for immobilizing the rotation of the intermediate element relative to the support when the hook is in the closed position.

Other objects and advantages of the invention will appear during the description which follows, given with reference to the appended drawings in which:

- Figure 1 is a schematic front view of a door associated with the body of a vehicle according to the invention; - Figure 2 is a schematic top view of the door shown in Figure 1, showing the door in a first and a second open position (positions A and B respectively), and in its closed position (position C);

- Figure 3 is an exploded view of a door showing its means of association with the vehicle body;

- Figure 4 is a sectional view of an association means along the line A- A of Figure 3;

- Figure 5 is a view showing the detail of a hinge lock comprising a hinge and a hook, according to a first embodiment, in the closed position;

- Figure 6 is a view similar to Figure 5, the hinge lock being in the open position;

- Figure 7 is a view showing the detail of a hinge lock according to a second embodiment, in the closed position. Figures 8a, 8b, 8c are operating diagrams of an actuator which controls all the hinge locks of a vehicle according to the invention, showing three different positions of the door relative to the vehicle body.

- Figures 9a to 9c are top views of a third embodiment of a hinge lock according to the invention, respectively showing said hinge lock in the closed position, operating as a hinge (Figure 9a), during opening or closing (Figure 9b) and in the open position (Figure 9c); A motor vehicle comprises a body 25 and at least one opening with a two-way opening. The opening may be a side door, a boot lid or a rear door.

By two-way opening is meant that said opening 1 is capable of being opened, for example in the case of a side door of a vehicle, from rear to front or from front to rear of said vehicle, according to the user's choice.

In the following description, the opening is a side door 1.

In the following description, the terms "front, rear, vertical, horizontal, longitudinal, transverse" are defined with respect to a vehicle in use.

Such a vehicle comprises a first 2 and a second 2 'opening, respectively closing axis of the door 1, these axes 2, 2' being each disposed at one of the opposite edges 3, 3 'of the door. On the embodiments shown, these are substantially vertical axes.

The vehicle also comprises first and second means for associating the door 1 with the body 25. These means are arranged respectively on the first 2 and the second 2 ′ axes of opening, respectively of closing, so as to be able to allow both opening door 1 from rear to front and from front to rear.

These association means comprise at least two hinges 5, 6, 5 ′, 6 ′ spaced apart with respect to each other on an axis 2, 2 ′ of opening, respectively of closing. Two hinges 5, 6 are provided on the front part of the body 25, and two hinges 5 ', 6' are provided on the rear part.

Each group of two hinges 5, 6, 5 ', 6' is fixed to the body 25 by means, in the embodiment shown in FIGS. 3 to 6, of a fixing plate 17. Each fixing plate 17 is substantially in the form of a U, the two parallel branches of which are each associated, at its end, with a hinge 5, 6, 5 ', 6'.

The door 1 is provided at each of its edges 3, 3 'front and rear with a group of at least two hooks 7, 8, 7', 8 ', each group of hooks 7, 8, 7', 8 ' , corresponding to the hinges 5, 6, 5 ', 6' located on the same axis 2, 2 '.

In a first position, the hooks 7, 8, 7 ', 8' are locked on the hinges 5, 6, 5 ', 6' so as to constitute the opening axis 2, 2 ', respectively of closing, corresponding, and come, in a second position, to unlock by moving away from the hinges 5, 6, 5 ', 6', which releases the door 1.

Each hook 7, 8, 7 ', 8' here comprises two arms 29 defining a substantially U-shaped, spaced from each other by a sufficient distance to be able to grip the corresponding hinge 5, 6, 5 ', 6 'when locking door 1.

Each of the two groups of hooks 7, 8, 7 ', 8' has a common control mechanism 4, 4 'connected to an actuator 9, 9', the two groups of hooks 7, 8, 7 ', 8' being controlled so that, once installed on the body 25 of the vehicle, the door 1 can, from its closed position (position C in Figure 2), open, as desired, around the first axis 2, c 'i.e. from rear to front of vehicle (position A in Figure 2), or around second axis 2', i.e. from front to rear of vehicle (position B in Figure 2), thanks to the locking / unlocking of the hooks 7, 8, 7 ', 8' respectively. Thus, each assembly formed by a hinge and the corresponding hook constitutes a hinge lock.

A hinge lock therefore comprises a hinge 5 and a hook 7, said hook 7 being movably mounted on a support 16 and being arranged to pivot between a closed position allowing rotation of the hinge 6 relative to the support 16 and an open position in which the hinge 6 is released from the support.

According to the embodiment of Figures 9, the hinge latch comprises an intermediate element 34 disposed between the hinge 6 and the hook 7, said intermediate element 34 being mounted to rotate freely around the hinge 6, as well as immobilization means for immobilize the rotation of the intermediate element 34 relative to the support 16 when the hook 7 is in the closed position.

According to a first embodiment, represented in FIGS. 3 to 6, the control mechanism 4, 4 ′ is constituted by a shaft 10, 10 ′ pivotally mounted around a pivot axis 33, 33 ′, hooks 7 , 8, 7 ', 8'. The hooks 7, 8, 7 ', 8' are fixed on this shaft 10, 10 ', said shaft being connected to a rod 30 mounted in translation relative to a housing 31. Thus, by translation of the rod 30 towards the outside the housing 31 and pivoting of the shaft 10, 10 ', the hooks 7, 8, 7', 8 'can be locked relative to the corresponding hinges 5, 6, 5', 6 '(Figure 5). And, by pivoting the shaft 10, 10 'and translating the rod 30 towards the interior of the housing 31, the hooks 7, 8, 7', 8 'can be unlocked relative to the hinges 5, 6, 5' , 6 'correspondents (figure 6).

According to another embodiment, shown in FIG. 7, the control mechanism 4, 4 'of each of the groups of hooks 7, 8, 7', 8 'is constituted by a connecting rod 11 mounted in translation relative to a housing 31. The hook of suitable shape 12 is fixed on this connecting rod 11 so as to be locked relative to the corresponding hinge 5, by translation of the connecting rod 11 towards the outside of the housing 31, and so as to be unlocked relative to the hinge 5 by translation of the connecting rod 11 towards the interior of the housing 31.

According to a particular embodiment, shown diagrammatically in FIG. 8, it can be provided that the two control mechanisms 4, 4 ′ are connected to the same actuator 9 disposed in the door 1, that is to say that the same actuator 9 controls all of the latches forming a hinge by means of a command link. In particular, according to the embodiment shown, each group of hinge locks is connected to the actuator by a link 32, 32 ′, so that the door can pass from the closed position (FIG. 8a) to a first open position, by rotation around the first axis 2 (Figure 8b), or at a second open position, by rotation of the door around the second axis 2 '(Figure 8c).

Such an embodiment is possible provided that the radius of curvature of the surface of the hook 7, 8, 7 ', 8' in contact with the corresponding hinge 5, 6, 5 ', 6' follows, during the pivoting of the door 1 , an arc centered on the pivot axis 33, 33 'of the hook.

As a variant, the hook can be straight and is then driven in a rectilinear movement when the door 1 is moving.

This embodiment comprising a single actuator common to all the latches forming a hinge has the advantage of simplifying the actuation of door 1, and of reducing the number of parts necessary for its manufacture, which contributes to lightening said door, and to reducing manufacturing costs. In addition, such an embodiment also has an advantage in terms of security, in that it ensures that at least one group of latches forming hinges is always locked.

The command to open / close door 1 can be of three types:

- it can be entirely manual; - Alternatively, it can be provided that the opening of the door is manual, and that the locking and unlocking are controlled;

- According to another variant, the opening and the locking and unlocking are controlled.

In addition, according to the embodiment shown in Figures 5 and 6, each hinge 5, 6, 5 ', 6' has an outer surface 22 which, when the door 1 is in the locked position, is taken between a first complementary surface 13 of the corresponding hook 7, 8, 7 ', 8', and a second complementary surface 14 integral with door 1, said second surface 14 being provided on a support element 16 fixed on door 1. The first 13 and the second surface 14 are slightly curved, and are, in the locked position, arranged facing one of the 'other, so as to form a housing for the hinge 5, 6, 5', 6 'corresponding. Such an arrangement thus allows the guiding as well as the free rotation of the hinge 5, 6, 5 ′, 6.

And, as it appears in FIG. 4, provision can be made for the body of the vehicle and the door to have, near the opening axes 2, 2 ′, respectively closing, axial abutment surfaces 18, 19, extending perpendicular to said axes 2, 2 ', these surfaces 18, 19 being intended to guide the door 1 vertically when it is mounted on the body 25 of the vehicle. In particular, these axial abutment surfaces 18, 19 comprise, at their free end, slopes 20, 21, intended to position the door 1 vertically when it is closed or when it is mounted on the body.

The positioning of the door 1 in the horizontal plane and in depth, that is to say perpendicular to the general plane of the door 1, is in turn ensured by the meeting between the second surfaces 14 of the door 1 and the surface outer 22 of the hinges 5, 6, 5 ′, 6, each hinge coming to bear against one of these second surfaces 14. This positioning is further facilitated by the fact that each of the second surfaces 14 is extended by slopes 23, 24 extending on either side of said second surface 14, so as to form a substantially V-shaped flared housing, these slopes 23, 24 making it possible to receive and guide the hinges 5, 6, 5 ', 6 when approaching door 1 on the vehicle.

According to one embodiment, and to further facilitate the guiding and the free rotation of a hinge 5, 6, 5 ', 6, provision may be made to apply hinges and / or to the first surface on one of the external surfaces 22 13 and / or on the second surface 14 an anti-friction coating.

Furthermore, the hinges 5, 6, 5 ′, 6 can be of different dimensions between them, their dimensions having to be adapted to the forces to be received. In addition, according to the embodiment shown in Figures 2 and 3, the door 1 is also connected to the body 25 by a rigid element 15 disposed substantially perpendicularly to the general plane of the door 1. This rigid element 15 is associated with a cylinder 26 secured to the body 25 of the vehicle. In particular, the external end of this element comprises a finger or roller 27 engaged in a groove 28 provided on the door 1. This element 15 is thus arranged to guide and / or assist the movement of the door 1. It can also serve to supply electrical, pneumatic or hydraulic energy to all of the door's equipment.

In the case of a vehicle side door, said rigid element 15 is arranged to come into abutment against the lower part 1a of the door 1 not provided with the window, and substantially in the center of the latter. And, for a rear door of a vehicle, or more generally for a relatively high door, said element 15 is provided in the upper part of the door, so as not to disturb the user.

The method of assembling the vehicle which has just been described will now be described in relation to the figures.

In a first step, the hinges 5, 6, 5 ', 6 are fixed to the body 25 of the vehicle so as to form the first and second axes 2, 2'.

Then the groups of hooks 7, 8, 7 ', 8' and their control mechanism 4, 4 'are installed in the door 1, and all the hooks 7, 8, 7', 8 are placed in the unlocked position.

The door 1 is then presented opposite the body 25 so that the hooks 7, 8, 7 ', 8 are located substantially opposite the corresponding hinges 5, 6, 5', 6 ', and the door 1 is roughly positioned on the vehicle, for example by an assembly robot.

The precise positioning of the door 1 on the body 25 occurs by pushing the door 1 towards the body 25, the second surfaces 14, the surfaces of axial stops 18, 19 of the door 1 and of the body 25 then coming into contact after having been guided by the slopes 23, 24 of the second surfaces 14, respectively by the slopes 20, 21 of the axial stops 18, 19.

Thus, the presence of these different guide surfaces facilitates the automated mounting of the door on the vehicle body, since the precise positioning of the door is ensured solely by the cooperation of said surfaces with one another.

We can then proceed to lock a group of hooks 7, 8, 7 ', 8', or all the hooks on the hinges 5, 6, 5 ', 6', so as to ensure the association of the door 1 on the body 25 of the vehicle.

Thus, such a structure has the advantage, when mounting the door 1 on the body 25 of the vehicle, to overcome the use of additional parts, such as hinge pins. In fact, the door 1 is in the form of a module ready to be assembled to the body 25, which is made possible by the respective arrangement of the hinges 5, 6, 5 ′, 6 ′ and the hooks 7, 8, 7 ', 8.

In addition, the positioning of the door 1, both during assembly and when it is closed, is facilitated by the presence of the different guide surfaces provided on the door 1 and on the body 25, the fixing then being carried out by a single operation, which consists in locking the hooks 7, 8, 7 ', 8.

The structure of the hinge lock according to the invention will now be described more particularly, as shown in FIGS. 1 to 4.

Each hook 7 of said hinge lock comprises a jaw 13 of concave shape intended to come in the closed position of the hook 7, substantially opposite a jaw 14 of the support 16 of concave shape, said support 16 being, like the hook 7, fixed to the opening 1, so that an intermediate element 34, which itself surrounds the hinge 5, is clamped between these two jaws 13, 14.

To immobilize the rotation of this intermediate element 34 relative to the support 16, when the hook 7 is in the closed position, it is possible to provide a roughness of the surfaces of the jaws 13 of the hook 7, of the support 16 and / or of the intermediate element 34 , said surfaces being intended to come into contact with each other when the hook 7 is in the closed position.

As a variant (see FIGS. 9a to 9c), said immobilization means consist of at least one bearing surface 37 disposed on the intermediate element 34, and intended to come into contact with a complementary surface 38 of the support 16.

The jaw 14 of the support 16 of concave shape is extended on either side of the intermediate element 34 by slopes 23, 24 arranged substantially in the form of a V, these slopes 23, 24 being able, by their shape, to guide the intermediate element 34 towards said concave shape of the support 16 when the opening 1 is closed.

Each hook 7 has an axis 41 around which it can pivot between the open and closed positions of the opening 1. The concave shape of each hook 7 extends along an axis of constant curvature R centered on the axis of pivot 41 of the hook 7. One end 42 of said hook 7 forming a lever extends beyond the pivot axis 41 so as to push the intermediate element 34 out of the jaw 14 of the support 16 during opening of the hook 7 (see in particular FIGS. 9b and 9c), which makes it possible to assist the opening of the hinge lock.

Each hook 7 further comprises a portion 43 which extends beyond its jaw, this portion 43 having a cam surface intended to progressively push on the intermediate element 34 during the closing of the hook 7. This arrangement has the advantage of allowing a progressive closing of the opening 1.

Claims

1. Motor vehicle of the type comprising a body (25) and at least one opening (1) with two directions of opening, such as a side door, a boot lid or a rear door, said opening (1) comprising:

- a first (2) and a second (2 ') opening, respectively closing axis of the opening (1) each arranged at one of the opposite edges (3, 3') of the opening (1) ;

- a first and a second means of association of the opening (1) with the body (25) disposed respectively on the first (2) and the second (2 ') opening, respectively closing axis, said means d 'association comprising at least two hinges (5, 6, 5', 6 ') spaced on the axis (2, 2') of opening, respectively closing, and fixed on the body (25), the opening being provided at each of said edges (3, 3 ') with a group of at least two hooks (7, 8, 7', 8 ') coming in a first position to lock on the hinges (5, 6, 5', 6 ') so as to constitute the axis (2, 2') of opening, respectively of closing, corresponding, and in a second position unlocking and thus releasing the opening (1), each of the two groups of hooks ( 7, 8, 7 ', 8') having a common control mechanism (4, 4 '), the two groups of hooks (7, 8, 7', 8 ') being controlled so that once installed on the body (25), the opening (1) can open as desired around of the first axis (2) or around the second axis (2 ') by locking / unlocking the respective hooks (7, 8, 7', 8 '), said vehicle being characterized in that the control mechanism (4, 4 ') of each group of hooks (7, 8, 7', 8 ') is constituted by a connecting rod (11, 32, 32') mounted in translation, the hooks (7, 8, 7 ', 8') being fixed on said connecting rod (11) so as to lock and unlock relative to the hinge (5, 6, 5 ', 6') by translation of the connecting rod (11), said control mechanisms (4, 4 ') being connected by said connecting rod (11) to the same actuator arranged in the opening (1).

2. Motor vehicle according to claim 1, characterized in that the control mechanism (4, 4 ') of each of the groups of hooks (7, 8, 7', 8 ') is constituted by a shaft (10, 10' ) pivotally mounted around a pivot pin (33, 33 ') of the hooks (7, 8, 7', 8 '), the hooks (7, 8, 7', 8 ') being fixed on this shaft (10, 10') so as to lock and unlock with respect to the hinge (5, 6, 5 ', 6') by rotation of the shaft (10, 10 ').

3. Motor vehicle according to claim 1 or 2, characterized in that each hinge (5, 6, 5 ', 6') has an outer surface (22) which, in the locked position, is taken between a first complementary surface (13 ) of the hook (7, 8, 7 ', 8') and a second complementary surface (14) integral with the door (1), thus allowing the guiding and the free rotation of the hinge (5, 6, 5 ', 6' ).

4. Motor vehicle according to claim 3, characterized in that an anti-friction coating is applied to the surfaces (22) of the hinges (5, 6, 5 ', 6') and / or the first (13) and / or the second (14) surface.

5. Motor vehicle according to any one of claims 1 to 4, characterized in that the actuator (9) is arranged to allow the positioning of the opening (1) in a closed position, or in a first open position, by rotation of the opening (1) around the first axis (2), or in a second open position, by rotation of the opening (1) around the second axis (2 ').

6. Motor vehicle according to any one of claims 1 to 5, characterized in that the opening (1) is connected to the body (25) by a rigid element (15) so as to guide and / or assist the movement of said opening (1), said element (15) serving to supply energy such as electric, pneumatic or hydraulic necessary for the equipment of the opening (1).

7. Motor vehicle according to any one of claims 1 to 6, characterized in that the body (25) and the opening (1) have, near the axes (2, 2 ') of opening, respectively of closing, axial abutment surfaces (18, 19) extending perpendicular to this axis (2, 2 '), said surfaces (18, 19) being intended to guide the opening (1) vertically when it is mounted on the body (25).

8. Motor vehicle according to claim 7, characterized in that the axial abutment surfaces (18, 19) have slopes (20, 21) intended to position the opening (1) vertically when it is closed or when it is assembled on the body (25), the horizontal and depth positioning being ensured by the meeting of the second surfaces (14) of the leaf (1) with the external surface (22) of the hinges (5, 6, 5 ', 6' ).

9. Motor vehicle according to claim 8, characterized in that the second surfaces (14) are extended by slopes (23, 24) extending substantially in V, said slopes (23, 24) receiving and guiding the hinges (5 , 6, 5 ', 6') when approaching the door (1) on the vehicle.

10. Motor vehicle according to any one of claims 1 to 9, characterized in that the hinges (5, 6, 5 ', 6') are between them of different dimensions, their dimensions being adapted to the forces to be received.

11. A method of assembling a motor vehicle according to any one of claims 1 to 10, characterized in that it comprises the following successive steps:

- fixing the hinges (5, 6, 5 ', 6') on the body (25) of the vehicle so as to form the first (2) and second (2 ') axes;

- installation of the hook groups (7, 8, 7 ', 8') and their control mechanism (4, 4 ') in the door (1);

- unlocking of all hooks (7, 8, 7 ', 8');

- Presentation of the door (1) on the body (25) so that the hooks (7, 8, 7 ', 8') are located substantially opposite the hinges (5, 6, 5 ', 6') ';

- positioning of the door (1) on the vehicle;

- locking of a group of hooks (7, 8, 7 ', 8'), or of all the hooks (7, 8, 7 ', 8') on the hinges (5, 6, 5 ', 6') .

12. A method of assembling a motor vehicle according to claim 11, characterized in that the positioning of the door (1) on the body (25) is carried out by pushing the door (1) towards the body (25), the second surfaces (14) and the axial abutment surfaces (18, 19) of the door (1) and of the body (25) then coming into contact after having been guided by the slopes (23, 24) of the second surfaces ( 14), respectively by the slopes (20, 21) of the axial stops (18, 19).

13. Hinge lock for opening (1), such as a door or a boot lid of a motor vehicle according to one of claims 1 to 10, comprising a hinge (5) and a hook (7), said hook ( 7) being movably mounted on a support (16) and being arranged to pivot between a closed position allowing rotation of the hinge (5) relative to the support (8), and an open position in which the hinge (5) is released from the support (8), characterized in that it comprises:

- an intermediate element (34) disposed between the hinge (5) and the hook (7), said element being mounted to rotate freely around the hinge (5), and;

- immobilization means for immobilizing the rotation of the intermediate element (34) relative to the support (16) when the hook (7) is in the closed position.

14. Hinge lock according to claim 13, characterized in that each hook (7) has a jaw (13) of concave shape intended to come, in the closed position of said hook (7), substantially opposite a jaw (14 ) of the support (16) of concave shape, so that the intermediate element (34) is sandwiched between the two jaws (13, 14).

15. Hinge lock according to claim 13 or 14, characterized in that the immobilization means consist of a roughness of the surfaces of the jaws (13, 14) and / or of the intermediate element (34), said surfaces coming in contact with each other when the hook (7) is in the closed position.

16. Hinge lock according to claim 13 or 14, characterized in that the immobilization means consist of at least one bearing surface (37) disposed on the intermediate element (34) and coming into contact with a surface ( 38) of the support (16).

17. Hinge lock according to claim 13 or 14, characterized in that the concave shape of the support (16) is extended on either side of the intermediate element (34) by slopes (23, 24) arranged in V, able to guide the intermediate element (34) towards said concave shape of the support (16) when the opening (1) is closed.

18. Hinge lock according to any one of claims 13 to 17, characterized in that each hook (7) has an axis (41) around which it can pivot between the open and closed positions, a lever (42) s' extending beyond this axis (41) so as to push the intermediate element (9) out of the jaw (14) of the support (16) when the hook (7) is opened.

19. Hinge lock according to claim 18, characterized in that the concave shape of each hook (7) extends along an axis of constant curvature R centered on the pivot axis (15) of said hook (7 ).

20. Hinge lock according to claim 13 or 14, characterized in that each hook (7) comprises a portion (43) which extends beyond its jaw (13), this portion (43) having a surface of cam intended to progressively push on the intermediate element (34) during the closing of the hook (7).

21. Hinge lock according to any one of claims 13 to 17, characterized in that the hook (7) is a finger which moves in translation relative to the support (16).