ES2197394T3 - AUTOMOBILE VEHICLE LOCK UNDERSTANDING A PERFECTED BAR FOR RETAINING FADORES. - Google Patents

Abstract

THE INVENTION REFERS TO A LOCK FOR A MOTOR VEHICLE THAT CONSISTS OF A ROTOR (10) THAT TURNS AROUND ITS AXIS WITHIN A CAP. THE LAMINILLAS (12) ARE SLIDING ON THE ROTOR (10), AND THE EXTREME OUTSTANDING POSITION OF THESE IS DETERMINED BY A PLASTIC MATERIAL CLAMP (32) THAT IS PROXONALLY PROLONGED ON THE ROTOR (10) AND AGAINST WHICH A SURFACE IS SUPPORTED BUMPER OF THE LAMINILLA (36). IT IS CHARACTERIZED THAT THE CLAMP (32) ELASTICALLY SUPPORTS ON THE LAMPS (12) FOLLOWING A RADIAL ADDRESS PERPENDICULAR TO THE TRANSVERSAL SLIDE ADDRESS OF THESE LAST (12).

Description

Automobile vehicle lock comprising a perfected bar of retention of sureties.

The invention relates to a lock of motor vehicle comprising a latch bar perfected The patent CH-596416-A describes a lock according to the preamble of claim 1.

The invention relates more specifically to a lock of a motor vehicle of the type comprising a rotor rotatably mounted around its axis in a bushing, of the type in which there are sliding latches mounted on the rotor, along a transverse direction, enter at least one position extreme projection where the rotor is immobilized with respect to the bushing in terms of rotation, and a retracted extreme position in which they are collected inside the rotor and towards which are forced by the introduction into the rotor of a suitable key, and of the type in which the extreme outgoing position of the sureties It is determined by a plastic bar that extends axially on the rotor and against which a surface is going to rest top of the guarantor.

In a type of lock like this, the bar plastic material allows to limit the path of the fasteners to along the transverse direction without the fact that any of the collars come into contact with the bar cause the considerable noise that would occur in the case of a contact of metal against metal.

Such a bar also allows limiting the risks of electrochemical corrosion that could occur at height of a contact between two pieces of metallic materials different.

It has been shown, however, that in a lock of this type noises remained, certainly less considerable, essentially due to operating games that it is necessary to provide in the transverse direction to allow a Good sliding of the sureties in their housings.

Therefore, the invention has as objective to propose a new conception of a lock bar of this type that allows to offer a solution to these problems.

To this end the invention proposes a lock of a motor vehicle of the type comprising a mounted rotor of rotating way around its axis in a bushing, of the type in the that in the rotor there are mounted slide fasteners, along of a transverse direction, enter at least one extreme position projection in which the rotor is immobilized with respect to the bushing in as for its rotation, and an extreme retracted position in which are collected inside the rotor and towards which they are forced by the introduction into the rotor of a compliant key, and of the type in which the extreme outgoing position of the sureties It is determined by a plastic bar that extends axially on the rotor and against which a surface is going to rest top of the sear, characterized by the fact that the bar is find elastically supported on the sureties according to a radial direction perpendicular to the transverse direction of sliding of the sureties.

According to other features of the invention:

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the bar is elastically deformable in radial direction, and by the fact that is radially tight between the rotor and a side edge external of each of the guarantors;

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the bar comprises a series of elastic arms each of which acts on a guarantor;

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in state of freedom, each arm is inclined with respect to the direction transverse sliding of the fasteners to go, in state tensioned, to rest on a free end against the side edge external of the corresponding guarantor;

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the bar comprises a main body of substantially rectangular section, and each arm extends along one direction substantially transverse from an axial edge of the main body;

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each arm is attached to the axial edge of the main body of the bar by means of a connecting section that extends radially from the axial edge, in the prolongation of a lateral face of the body principal;

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the side edge external of each guarantor comprises a notch through which extend the bar, the notch defines two transverse stops, of which one at least forms the stop surface intended for work together with the bar to determine a position end of the catch, and the corresponding elastic arm of the bar is leaning against the catch at the height of the displacement;

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the free end of each arm that is supported against the corresponding guarantor It is intended to work together with the other transverse stop to determine a second extreme position of the fastener;

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the sections of union from the set of the fasteners form a continuous bonding strip that extends along the entire axial edge of the body principal;

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the bar is attached axially in the rotor of the lock after the assembly of the sureties, and each arm is bounded by two edges, of substantially transverse orientation, which are chamfered to cause when the bar fits an arm deflection, to along the radial direction, towards a tensed state;

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the bar is attached axially in a housing of the lock rotor, and comprises a flange that extends perpendicular to the axial direction of the bar and that is housed in a cavity arranged in a wall side of the housing to ensure axial bar fixation in the lock;

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the tab is axially arranged, substantially in the center of the bar.

Other features and advantages of the invention will arise from reading the detailed description that is made to then, for whose understanding reference will be made to the drawings attachments, in which:

Figure 1 is a schematic view in perspective illustrating the retention means of the sureties in the rotor of a lock made according to the teachings of the invention;

Figure 2 is an axial sectional view of the rotor of the lock of figure 1;

Figure 3 is a perspective view of the noise bar according to the invention;

Figures 4 and 5 are side views of the bar according to the invention, along, respectively, of the transverse and radial directions;

Figure 6 is a cross-sectional view of the bar in free state along line 6-6 of figure 4;

Figure 7 is a plan view of a fastener for a lock according to the invention;

Figure 8 is a cross-sectional view of the rotor of figure 1 in which a mounted fastener is shown in the housing in outgoing position; Y

Figure 9 is a view similar to that of the figure 8 in which the latch is represented in position retracted

A rotor 10 of 10 is shown in FIG. lock, as well as fasteners 12 intended to be housed in housings 14 of rotor 10, in which the catches along a transverse direction perpendicular to the rotor shaft A1 10.

The guarantors are basically made in form of plates 12 and are slidably mounted between an outgoing extreme position, which is represented in the figure 8, and a retracted position, shown in Figure 9. The catches 12 are guided in their housings 14 by two edges external sides 34 with transverse orientation.

When the latches 12 are in position outgoing, that is, when they are partially arranged outside the housings 14 of the rotor 10, the latches 12 are intended to block any rotational movement of the rotor 10 with respect to a socket 15 (represented in figures 8 and 9) substantially cylindrical, in which it is mounted rotating way. A socket 15 of this type can be either the Stator of a non-decoupling lock, either the intermediate stator of a detachable lock, in which case the bushing is he finds himself swivel mounted on the stator.

On the contrary, when the fasteners 12 are found in the stowed position, the rotor 10 can rotate freely around its axis A1 in bushing 15.

In a known manner, the fasteners 12 are driven to its stowed position with the help of a key according 16, whose rod 18 works together with the guarantors 12 to cause sliding inside the housings 14.

The rod of the key 18 is intended for enter axially, from back to front, in a step to key 20 extending axially inside the rotor 10, the cane of the key 18 being received inside a window arranged in each of the fasteners 12. The cane of the key 18 has a rectangular section, elongated in the direction of sliding of the sureties.

On each of its two opposite faces 24, which are parallel to the sliding direction of the fasteners, the rod of the key 18 comprises a cam track 26 carved in the hollow. Each latch 12 comprises a radial flange 28 extending towards the inside the window 22 from an edge 30 of the window 22 parallel to the transverse sliding direction of the latch 12. This radial flange 28 is intended to be housed on the cam track. 26 so that you follow your profile exactly, so that a axial displacement of the key 16 causes a displacement of each of the sureties 12 along its direction of glide.

The cam track 26 is delimited by two parallel edges, but not rectilinear, that allow to direct the displacements of the fasteners 12 in both directions of the sliding direction.

The position of the radial flange 28 on the edge 30 of the window 22 of each fastener 12 and the profile of the track cam 26 of the key 16 are such that, if the key is compliant, when it engages axially fully in the rotor 10, the latches 12 they are in a stowed position, so that they release the locking of the lock.

It is understood that the cam tracks 26 of each of the faces 24 end at the front end free of the cane of the key 18, where they present a widening destined to facilitate the entry of spurs 28 on the cam track 26 when the key 16 is inserted in the rotor 10.

The presence of two cam tracks 26 in both opposite faces 24 of the key shank 18, so that each sear does not include more than a radial flange 28, allows insert the key 16 indifferently according to two positions oriented with a difference of 180 degrees around the axis A1.

The lock represented in the figures is a lock of the type without spring. A lock of this is described type in French patent number 960,244.

Indeed, contrary to a technique widely spread, guarantors 12 are not driven towards their outgoing position by a recoil spring.

When the user removes the key 16 from the rotor 10, the cam track 26 in which the spurs 28 are received causes a movement of each fastener 12 along its sliding direction, so that when the rod of the key 18 is completely removed the fasteners 12 are in Your outgoing position.

In a well-known way, means are planned to limit the race of the fasteners 12 in its housing 14, mainly to prevent them from going beyond their position outgoing, at the risk of leaving the accommodation 14.

In this way, a bar 32 of plastic material that is introduced axially in the rotor, and that is intended to work together with each of the guarantors 12. For this purpose each fastener 12 comprises in one of its lateral edges 34 parallel to the direction of travel a notch 36 in whose inside the bar 32 is intended to be partially received. in this way, the bar 32, which is fixed on the rotor 10, is suitable for work together with transverse flanges 38 that delimit the notch 36 to limit the stroke of the sear 12, such as depicted in figures 8 and 9.

As you can see in more detail in Figure 2, the bar 32 is intended to fit into an axial housing 33 which extends parallel to the key passage 20, and which is arranged in a radial direction so that it communicates with the housings 14 of the guarantors 12, partially invading those accommodation.

It is understood that the fact that bar 32 be partially received in the notch 36 of each of the sureties 12 implies that the bar 32 is mounted in its housing 33 after that the fasteners 12 have been arranged in their housings 14.

In the exemplary embodiment that is shown in the figures, the fasteners 12 comprise, at the edge outer side 34 opposite to the one with the notch 36, a tip of indexing 37 extending transversely outward. So that this indexing tip 37 does not impede the movement of sliding of the fastener 12, the housings 14 of the rotor 10 of a displacement 39 corresponding to the tip 37.

According to the teachings of the invention, the bar 32 also has the function of readjusting the game to anticipate, along the radial direction perpendicular to the transverse sliding direction, to ensure good sliding of each fastener 12 in its housing 14.

To that end, the bar 32 comprises arms elastic 40 in a number equal to that of the fasteners 12, which are suitable to go to lean elastically in a radial direction against the notch 36 of a corresponding fastener 12 so that the latter is support, with its outer lateral edge 34 opposite the edge on which it find notch 36, against a side wall cross section 42 of housing 14.

As you can see in Figures 3 to 6, the arms 40 are arranged axially at regular intervals at along the bar 32, and each of them is presented in the form of a plate element that extends, when it is in its free state, substantially in an axial orientation plane slightly inclined with respect to the transverse direction of sliding of the fasteners 12.

Each arm 40 is attached to a main body 44 of rectangular section of the bar 32 by a connecting section 46, which extends radially from an axial edge 48 of the body main 44, in the extension of a lateral surface of radial orientation 50 of the main body of the bar 32. How to you can see in figure 5, each of the arms 40 is delimited axially by two transverse edges 54.

In its free state, each arm 40 is inclined with respect to the transverse direction such that one end free 52 is located away from the main body 44, in the direction of the center of the rotor 10, to go to rest against the notch 36 of the corresponding guarantor 12.

The connecting section 46 of each arm 40 has a reduced thickness compared to that of arm 40 itself, of so that the essential of the deformation of the bar 32 along of the radial direction is ensured by a pivot of the arms 40 around its junction 46, the latter deforming elastically

When bar 32 is in place in the rotor 10, and the free end 52 of each of the fingers 40 is supported against the corresponding fastener 12, the arm 40 is in a tensioned state in which its free end 52 is close, radially outward, to the main body 44 of the bar 32. As can be seen in Figures 8 and 9, each arm 40 only it leans against the corresponding fastener 12 at its free end, in such a way that the contact surface between the two is reduced elements, and thus limit the frictions likely to oppose to the good sliding of the fastener 12 in its housing 14 when it is directed in its movement by the compliant key 16.

However, it is desirable that frictions of each fastener 12 with the rotor 10 and with the bar 32 are sufficient for the latch remains motionless when subjected to vibrations due to the circulation of the vehicle, in order to avoid the crash noise at the level of the lock. On the other hand, this It has the advantage of maintaining the fastener 12, when the key 16 of rotor 10, in an ideal position where its flange radial 28 is arranged exactly at the level of the end in which empties the cam track 26 of the key rod 18.

As you can see in more detail in the Figures 3 to 6, the connecting sections 46 of each of the arms 40 they are made in a single piece in the form of a continuous strip that extends along the axial edge 48 of the main body 44. By on the contrary, each of the arms 40 is independent of the other arms, so that the radial play of each of the fasteners 12 is adjusted individually.

As shown in Figure 8, a extreme outgoing position of the catch 12 is determined by the support of one of the transverse stops 38 delimiting the notch 36 against the continuous joint strip 48 that joins the arms 40 with the main body 44 of bar 32.

A second extreme opposite position of the sear 12 is determined by the support of the other transverse stop 38 against the free end 52 of the corresponding elastic arm 40. Of in this way, the transverse stroke of the fastener 12 is limited, and its radial flange 28 always occupies a position in which it is capable of fit into the widened end of cam track 26 of the key 16. It is avoided in this way that, for example as a consequence of an attempt to force the lock, the fasteners 12 prevent the introduction of a compliant key 16 in the rotor 10.

On the other hand, as you can see in the figures 3 to 5, the axial ends 56 of the bar 40 and the edges 54 of transverse orientation of each of the arms 40 are chamfered in order to facilitate the introduction of bar 32 in its housing 33. Indeed, it must be ensured that the arms 40 do not oppose the axial introduction of the bar 32, or where appropriate upon withdrawal.

In this way, the side edges 54 of each one of the arms 40 are chamfered in bevel to cause a deflection of arm 40 radially outward, that is, in direction to the main body 44 of the bar 32, when one of those edges 54 comes into contact, axially forward or backward, with the outer side edge 34 of a fastener 12 to the height of its notch 36.

Where appropriate, when arm 40 has axially exceeded the latch 12 can recover the position of its free state, notwithstanding being deflected again by the joint work of its transverse edge 54 with the edge of the notch 36 of the next surety.

For axial attachment in its housing 33, the bar 32 comprises, on a side face 58 of its main body opposite a transverse side face 60 in front of which they are arranged the arms 40, a flange 62 that is intended to staying in a corresponding cavity 64 arranged in a wall of housing 33. Tab 62, substantially in the form of parallelepiped, extends radially outward, and is axially arranged, substantially in the center of the bar 32

Claims (12)

1. Motor vehicle lock of the type comprising a rotor (10) rotatably mounted around its axis (A1) in a bushing (15), of the type in the in the rotor (10) there are fasteners (12) , along a transverse direction, between at least one protruding extreme position in which the rotor (10) is immobilized with respect to the bushing (15) against its rotation, and a retracted position in which they are housed inside the rotor ( 10) and towards which they are forced by the introduction into the rotor (10) of a suitable key (16), and of the type in which the extreme outgoing position of the fasteners (12) is determined by a bar (32) of plastic material that extends axially in the rotor (10) and against which a stop surface (38) of each fastener (12) is to be supported, characterized by the fact that the bar (32) rests elastically on the fasteners (12) along a radial direction perpendicular to the transverse direction of sliding of the sureties (12). 2. Lock according to claim 1, characterized in that the bar (32) is elastically deformable along the radial direction, and by the fact that it is radially tightened between the rotor (10) and a side edge external (36) of each of the sureties (12). 3. Lock according to claim 2, characterized in that the bar (32) comprises a series of elastic arms (40), each of which acts on a fastener (12). 4. Lock according to claim 3, characterized in that, in its free state, each arm (40) is inclined with respect to the transverse direction of sliding of the fasteners (12), to be supported, in its tensioned state , by a free end (52) against the outer side edge (36) of the corresponding catch (12). 5. Lock according to one of claims 3 or 4, characterized in that the bar (32) comprises a main body (44), of substantially rectangular section, and by the fact that each arm (40) extends to along a substantially transverse direction from an axial edge (48) of the main body (44). 6. Lock according to claim 5, characterized in that each arm (40) is attached to the axial edge (48) of the main body (44) of the bar (32) by a connecting section (46) which is extends radially from the axial edge (48), in the extension of a lateral face (50) of the main body (44). 7. Lock according to any one of the preceding claims 3 to 6, characterized in that the outer side edge (34) of each fastener (12) comprises a notch (36) through which the bar (32) extends ), and by the fact that the notch (36) delimits two transverse stops (38), one of which, at least, forms the stop surface intended to work together with the bar (32) to determine an extreme position of the latch (12), and by the fact that the corresponding elastic arm (40) of the bar is supported on the latch (12) at the height of the notch (36). 8. Lock according to claim 7 in combination with claim 4, characterized in that the free end (52) of each arm (40) that rests against the corresponding fastener (12) is intended to work together with the other transverse stop (38) to determine a second extreme position of the fastener. 9. Lock according to any one of claims 6 to 8, characterized in that the connecting sections (46) of the set of fasteners (12) form a continuous joining strip that extends along the entire axial edge ( 48) of the main body (44). 10. Lock according to any one of claims 3 to 9, characterized in that the rod (32) fits axially in the rotor (10) of the lock after mounting of fasteners (12), and by the fact that each arm (40) is delimited by two edges (54) with a substantially transverse orientation that are chamfered to cause, when the coupling of the bar (32) takes place, a deflection of the arm (40) according to the radial direction towards a been tense 11. Lock according to any one of the preceding claims, characterized in that the bar (32) is axially fitted in a housing (33) of the rotor (10) of the lock, and by the fact that the bar (32 ) comprises a flange (62) that extends perpendicularly to the axial direction of the bar (32) and that is housed in a cavity (64) arranged in a side wall of the housing (33) to ensure the axial fixation of the bar ( 32) in the lock. 12. Lock according to claim 11, characterized in that the flange (62) is arranged axially, substantially in the center of the bar (32).