FR2734013A1 - DEVICE FOR LOCKING A MOTOR VEHICLE OPENING ELEMENT HAVING IMPROVED MEANS FOR MOUNTING A COVERING CAP - Google Patents

Abstract

Locking device for a trunk door, of the type comprising a lock the body of which is fixed in a housing (10) comprising a sleeve (14) which receives the body of the lock and a base (18) on which a cap is fixed cover (12), the base (18) comprising a base plate (40, 44) which extends parallel to the axis of the sleeve (14) and a transverse plate (22) perpendicular to the axis of the sleeve and crossed by the sleeve, and the cap (12) comprising two tabs (56) for articulation on the base plate (40, 44) and two tabs (58) for hooking in position mounted on the transverse plate (22) , to allow mounting of the cap on the base (18) by pivoting around articulation tabs (56) and hooking by elastic interlocking of the hooking tabs (58).

Description

The present invention relates to a device for locking an opening

  of a motor vehicle, in particular of a trunk door, of the type comprising a latch the body of which is fixed in a housing of the mechanism comprising a sheath which receives the body of the latch and a base on which

a covering cap is attached.

  The housing can be fixed on a part of the trunk or be movable relative to this part of the trunk to actuate a linkage for actuating a lock of the

trunk door.

  According to a known design, the mounting of the covering cap on the trunk is carried out by crimping or by

force fitting.

  This solution is unsatisfactory insofar as the operations for mounting the cap result, due to the deformation imposed on the various crimping and attachment means, to a deterioration of the paint which covers

  in particular the external covering surface of the body of the cap.

  In addition, these operations for mounting the cap require exerting significant forces which make it necessary to firmly maintain the housing during the operation of

cap mounting.

  The object of the present invention is to propose a new design of a locking device of the type mentioned above which makes it possible to mount the covering cap on the base of the housing with reduced forces while ensuring, after mounting, a sufficient mechanical connection between the cap and the casing, making it possible in particular to withstand the operating forces of the locking device and / or of operating the opening leaf using the

  cap as grip.

  To this end, the invention provides a locking device of the type mentioned above, characterized in that the base comprises a base plate which extends parallel to the axis of the sleeve and a transverse plate perpendicular to the axis of the sleeve and crossed by the sheath, and in that the cap has two articulation lugs on the base plate and two latching lugs in the position mounted on the transverse plate, to allow mounting of the cap on the base by pivoting around the hinges and hooking by

  elastic interlocking of the hanging tabs.

  According to other characteristics of the invention: - the transverse plate is arranged near an axial end of the sheath and the cap comprises a body of which an internal face covers, in the mounted position, the face opposite the transverse plate; - The body of the cap has two opposite hinge tabs arranged transversely on either side of the central part of the body, which has an opening disposed opposite the axial end of the sheath, and each of which is received in a slot corresponding articulation formed in the base plate of the base; - The base plate is constituted by two opposite wings which extend transversely on either side of the sheath and each of which comprises a hinge slot arranged in the vicinity of its free edge adjacent to the axial end of the sheath; - the articulation tabs are two bent tabs substantially S-shaped, each of which is connected to the body of the cap in the vicinity of a lower transverse edge of the body adjacent to the free edge of the wings of the base plate, and which extend axially from said internal face of the body of the cap;

  - the body of the cap has two lugs

  chage which extend axially from the internal face of the body and each of which comprises means for its attachment to the transverse plate of the base; - Each attachment tab extends from a lateral edge of the body of the cap and has a free end for its attachment to a part complementary to the lateral edge opposite the transverse plate of the base; - The free end of each hooking lug is elastically deformable in a transverse direction and comprises a hooking notch in which, in the mounted position of the cap, is received a hooking beak formed on the corresponding lateral edge of the plate transverse of the base; - the cap is made in one piece by

  molding and has an outer covering face.

  Other characteristics and advantages of the invention

  will appear on reading the detailed description which will

  follow for the understanding of which reference will be made to the accompanying drawings in which: - Figure 1 is an exploded perspective view which illustrates a housing and a cap produced in accordance with the teachings of the invention, before mounting the cap on the housing; Figure 2 is a view similar to that of Figure 1 which illustrates the cap being mounted on the housing; - Figure 3 is a detail view in section along line 3-3 of Figure 2; - Figure 4 is a rear perspective view, similar to that of Figures 1 and 2 which illustrates the cap in the mounted position on the housing; - Figure 5 is a front perspective view which illustrates the cap in the mounted position on the housing; and - Figure 6 is a detail view in section along

line 6-6 of Figure 5.

  There is shown in the figures a housing 10 intended to receive the body of a lock (not shown) and a cap.

dressing 12.

  The housing 10 consists essentially of a cylindrical sheath 14 whose internal bore 16 is provided

to receive the lock body.

  The sleeve 14 is mounted in a base 18 which is constituted by a base plate 20 and by a plate

transverse before 22.

  The transverse plate 22 is crossed by the sheath 14, a front axial end 24 of which projects axially beyond the front face 26 of the plate

transverse 22 of the base 18.

  The transverse plate 22 has for this purpose a

central cutout 28.

  The fixing of the transverse plate 22 is ensured by three branches 30 which extend axially from the rear face 32 of the transverse plate 22 and whose shape matches that of the sheath 14 to which they can for example be

fixed by welding or gluing.

  The transverse plate 22 is delimited in particular by an upper transverse edge 34 and by two opposite lateral edges 36 each of which comprises a hooking spout 38 which makes

  protruding transversely from the lateral edge 36.

  The base plate 20 of the base 18 is constituted, as can be seen in particular in FIG. 5, by two opposite lateral wings 40 each of which is welded to the sheath

14.

  The two wings 40 extend in a plane parallel to the axis of the sleeve 14 and perpendicular to the plane of the plate

transverse 22.

  The two wings 40 are each delimited by a front transverse edge 42 which, as can be seen in particular in FIGS. 3 and 6, is located axially in front with respect to

  the front face of the transverse plate 22.

  In the vicinity of its front transverse edge 42, each wing 40 has a slot 44 which extends transversely and

  which crosses the thickness of the wing 40.

  We will now describe in detail the cap 12 for covering the sheath and the base 18 which, in the mounted position,

  is provided to mask the front part of the housing 10.

  The sheath 12 is constituted by a single piece 46 obtained by molding and which has substantially a plate shape. The body 46 is delimited by an internal face or rear face 48 and by a front covering face 50 substantially

parallel to the internal face 48.

  The body 46 has a substantially rectangular outline whose dimensions are greater than those of

  the rectangular transverse plate 22.

  The central part of the body 46 of the cap 12 has a circular hole 52 which is designed to allow in particular the passage of the front axial end 24 of the sleeve 14 with a view to the introduction of a key into the lock mounted in the bore 16 of the sleeve 14. In the vicinity of its lower edge 54, the body 46 of the cap 12 has two hooking lugs 56 each of which is bent in an S shape and extends axially from the internal face 46 in a direction substantially perpendicular to the

plan of this internal face 48.

  The dimensions and the S-shape of each of the articulation tabs 56 are intended to allow its introduction into an articulation slot 44 of the corresponding wing 40 of the base plate 20 of the base 18 of the housing

  10 as will be explained later.

  The body 46 of the cap 12 also comprises two opposite latching lugs 58 each of which extends axially from the internal face 48 in a vertical plane perpendicular, in the mounted position, to the plane of the plate.

base 20.

  Each tab 58 extends from a lateral edge 59 of the body 46 in the direction of the lateral edge opposite 36 of the

cross plate 22.

  The free end 60 of each hooking lug 58 has a hole constituting a notch 62 intended to receive a

  corresponding hooking spout 38 of the transverse plate 22.

  According to the invention, each of the hooking lugs 58 is capable of deforming elastically, in a transverse direction, to allow nesting

  elastic of the nozzles 38 in the notches 62.

  We will now describe the method of mounting the cap.

12 on the housing 10.

  As illustrated in Figure 2, the operator begins by introducing the free ends of the legs

  articulation 56 in the slots 44 of the wings 40.

  For this purpose, it is necessary to orient the cap 12 relative to the housing 10 as illustrated in

Figures 2 and 3.

  The assembly operation continues by tilting the cap 12, clockwise, considering FIG. 3, with respect to the housing 10, and therefore with respect to the wings 40, and this thanks to the S-shaped configuration of the tabs. articulation 56 which are received in the slots 44. This tilting movement continues until the

  mounted position illustrated in Figures 4 to 6.

  In this mounted position, the spouts 38 are received

  in the notches 62 of the hooking tabs of the cap 12.

  In the mounted position, the cap 12 extends in a

  plane substantially perpendicular to the plane of the wings 40.

  The front transverse edge 42 of the wings 40 is in abutment

  axial against the internal face 48 of the body 46 of the cap 12.

  The cap is thus locked in position mounted on the housing 10 and the cooperation of the legs 56 with the wings 40 allows a transmission of forces, in a direction parallel to the axis of the sheath 14 between the wings 40 and the

cap 12.

  It is easily understood that the operation of mounting the cap 12 on the base 18 of the housing 10 can be carried out in a particularly gentle manner, the only effort required being that for the deformation of the latching lugs 58 whose thickness can be reduced because it hardly takes any effort later during the maneuver

of the locking device.

  The good transmission of forces between the lower part of the cap 12 and the wings 40 also makes it possible to absorb the forces when the cap is used as

  handle for operating the boot door.

  In the example described and shown, the sleeve 14, the transverse plate 22 and the base plate 20 of the base 18

  are separate parts assembled by gluing or welding.

  Of course, this sheath assembly 14 - plates 20 and 22 may consist of a single piece obtained by molding

  without departing from the scope of the present invention.

Claims (10)

  1. Locking device for a vehicle opening, in particular for a trunk door, of the type comprising a latch the body of which is fixed in a housing (10) of the mechanism comprising a sheath (14) which receives the body of the latch and a base (18) on which is fixed a covering cap (12), characterized in that the base (18) comprises a base plate (40, 44) which extends parallel to the axis of the sleeve ( 14) and a transverse plate (22) perpendicular to the axis of the sheath and crossed by the sheath, and in that the cap (12) has two tabs (56) for articulation on the base plate (40, 44) and two lugs (58) for hooking in position mounted on the transverse plate (22), to allow the mounting of the cap on the base (18) by pivoting around articulation lugs (56) and latching by elastic interlocking of the lugs hook 58. 2. Locking device according to claim 1, characterized in that the transverse plate (22) is arranged near an axial end (24) of the sleeve (14) and in that the cap (12) comprises a body ( 46) of which an internal face (48) covers, in the assembled position, the   opposite (26) the transverse plate (22).   3. Locking device according to claim 2, characterized in that the body (46) of the cap (12) comprises two opposite hinge tabs (56) arranged transversely on either side of the central part of the body (46 ), which has an opening (52) disposed opposite the axial end (24) of the sleeve (14), and each of which (56) is received in a corresponding articulation slot   (44) formed in the base plate (20, 40) of the base (18).   4. Locking device according to claim 3, characterized in that the base plate (20) is constituted by two opposite wings (40) which extend transversely on either side of the sleeve (14) and each of which comprises an articulation slot (44) arranged in the vicinity of its edge   free (42) adjacent to the axial end (24) of the sleeve (14).   5. Locking device according to claim 4, characterized in that the articulation tabs (56) are two bent tabs substantially S-shaped which are each connected to the body (46) of the cap (12) in the vicinity of a lower transverse edge (54) of the body (46) adjacent to the free edge (42) of the wings (40) of the base plate (20) and which extend axially from said internal face (48) of the body (46) of the cap (12).   6. Locking device according to any one   claims 2 to 5, characterized in that the body (46)   of the cap (12) comprises two hooking tabs (58) which extend axially from the internal face (48) of the body (46) and each of which comprises means (62) for its hooking   on the transverse plate (22) of the base (18).   7. Locking device according to claim 6, characterized in that each hooking lug (58) extends from a lateral edge (59) of the body (46) of the cap (12) and has a free end (60) for its attachment to a complementary part (38) of the lateral edge opposite (36) of   the transverse plate (22) of the base (18).   8. Locking device according to claim 7, characterized in that the free end (60) of each hooking lug (58) is elastically deformable in a transverse direction and includes a hooking notch (62) in which, in the mounted position of the cap (12), is received a hooking spout (38) formed on the corresponding lateral edge   (36) of the transverse plate (22) of the base (18).   9. Locking device according to any one   of the preceding claims, characterized in that the   cap (12) is made in one piece by molding and   has an outer covering face (50).   10. Locking device according to any one   of the preceding claims, characterized in that   the sleeve assembly (14), transverse plates (22) and base   (20) of the base (18) is made in one piece by molding.