FR2624584A1 - OPTICAL BLOCK FOR MOTOR VEHICLES WITH ADJUSTABLE FIXING - Google Patents

Abstract

The invention relates to an optical unit for motor vehicles, of the type comprising at least a first body 14a and a second body 12a adjacent to one another and able to be mounted on a support and means 22, 24 for adjusting the relative position of said bodies. According to the invention, said adjustment means comprise at least a first connection element 22, fixed to the first body 14a of the optical unit, and at least a second connection element 24, of complementary shape to the first 22, said second element 24 being adjustable to the second body 12a.

Description

262 4584

  The present invention relates to an optical unit for

  motor vehicles, of the type comprising at least one

  mier and a second body substantially adjacent to each other

  and able to be mounted on a support and retaining means

  setting of the relative position of said bodies.

  We know the use of optical blocks for vehicle

  motor vehicles comprising one or more headlights associated with lights (position, stop, turn signals, etc.). It turns out to be difficult to obtain that the surfaces of the transparent elements of the headlights and of the lights with adjacent axes are correctly arranged side by side and are connected with the parts of the bodywork which surrounds them. This is due to the high construction and positioning tolerances of the transparent elements

  and body sheets. This difficulty appears

  especially when it is necessary to disassemble and reassemble in posi-

  correct spotlight or fire, for example for

exchange the bulb.

  To resolve such a problem, efforts have been made to limit positioning errors as much as possible by fine-tuning the means of production and,

  sometimes using partially fixed fasteners

  adjustable, for example between fire and headlamp., This re

  Glage, carried out during the assembly of the optical unit, must in all cases be repeated with each disassembly / reassembly of the light or the projector, which consequently increases the

  time and costs of the operation.

  The object of the present invention is to produce an optical unit of the type specified in the preamble which, while allowing precise adjustment of the position of the bodies making up the optical unit (for example light and projector), makes it possible to avoid a new adjustment during each disassembly

and subsequent reassembly of the body. -

  This object is achieved thanks to the fact that the means

  adjusting elements comprise at least a first connecting element

  cord fixed to the first body of the optical unit and at least one second connecting element of a shape complementary to the first, said second element being fixed to the second body

adjustable.

  It is therefore sufficient to adjust the position of the bodies of the optical unit with respect to each other and with respect to the body, only at the time of assembly of the optical unit which allows, with each disassembly and reassembly, to reposition the bodies of the optical unit in a correct position by acting only on the quick connection elements between said bodies therefore, without any

need for adjustment.

  Other advantages and characteristics of the optical unit

  according to the invention will clearly result from the des-

  following detailed description, given purely by way of example

  ple nonlimiting, with reference to the accompanying drawings in which: Fig.1 is a perspective view of an optical unit according to the invention, Fig.2 is a partially exploded perspective view of the optical unit of Fig.1, Fig.3 is an exploded perspective view of a detail of Fig.2, and Fig.4 is a sectional view along line IV-IV of

Fig. 1.

  Referring to the drawings, it is shown

  at 10, as a whole, a motor vehicle optical unit

  mobile comprising a projector 12, provided with a body 12a and a transparent element 12b and a light 14, provided with a body 14a and a transparent element 14b in the axis of the element

12b of the projector 12.

  The headlamp 12 and the light 14 of the block 10 are fixed to a support (not shown), so as to be in a predetermined position relative to the body S of the motor vehicle. The body 12a of the projector has a quadrangular hollow housing 16 defined by a wall

  lower 16a joined to the body 12a by three side walls

  rails 16b. The bottom wall 16a of the housing 16 is for

  view of a notch in U 18 whose function will appear clear-

  rement in the following description. Inside of

  hollow housing 16, is accommodated with clearance a metal plate

  size 20, with a central through hole, threaded, a. The body 14a of the light 14 is provided at the rear with a part 22 configured in the shape of a foot, capable of sliding and locking inside a connection element 24

  having a quadrangular hollow section.

  The connecting element 24 has a surface

  crenellated 24a advanced and able to come into contact with the

  lower king 16a of the hollow housing 16 of the projector 12.

  The connection element 24 is further provided with a first through hole 24a and a second through hole 24b, coaxial with the first and having a diameter greater than

  that of the first to allow the introduction of the ex-

  end of a screwdriver. The diameter of the first hole

  edge 24a is able to allow the passage of a body 26a of screws 26, passing through the notch 18 and able to dooperate with

  the threaded hole 20a of the plate 20, for an assembly

  adjustable spotlight 12 to fire 14.

  It is obvious, in the assembled configuration of the optical unit 10 shown in FIG. 4 that the adjustment of the relative position between the body 12a of the headlight and the body 14a of the light can be carried out by varying the position of the plate 20 relative to to its housing 16 (see Fig. 3) and, after having made the adjustment, by blocking

  with screw 26 the light 14 relative to the projector 12.

  When the projector 12 is disassembled relative to the light 14, it is sufficient to extract the element from

  connection 24 (leaving it fixed to the body 12a of the

  junction 12) of part 22, without the relative position

  ve between the projector and the fire is altered when re-

subsequent assembly.

  It is obvious that the connecting element 24, instead of being on the body of the headlight 12a, could be fixed to the body 14a of the light. In this case, the element 22 would obviously be part of the body 12a of the projector 12; Naturally, it is understood that the effects of the present invention extend to models which provide the

  same utility, using the same inventive principle.

Claims (5)

  I. Optical unit for motor vehicles, of the type comprising at least first and second bodies adjacent to each other and capable of being mounted on a support and means for adjusting the relative position of said bodies, characterized in that said adjusting means comprise at least one first connecting element (22), fixed to the   first body (14a) of the optical unit (10), and a second element   connecting element (24) at least, of complementary shape to the first (22), said second element (24) being fixed to the   second body (] 2a) in an adjustable manner.   2. Optical unit according to claim 1, character-   in that the first connecting element (22) pre-   feels a conformation in the shape of a foot, projecting from the first body (14a) and in that the second element (24) has a substantially tubular conformation, suitable for   slide and be locked in position on said foot (22).   3. - optical unit according to claim 1, character-   risé in that the first connecting element (22) is an integral part of the first body (14a) of the optical unit (10).   4. Optical unit according to any one of the preceding   dentes claims, characterized in that the sec.ond   body (12a) of the optical unit (10) has a housing (16) capable of receiving with clearance a fixing plate (20)   provided with a threaded hole (20a) and in that the second element   connection piece (24) has a through hole (24a, 24b) for the passage of the body (26a) of a screw (26)   able to cooperate with said fixing plate (20).   5. Optical unit according to claim 4, character-   risé in that the second connecting element (24) has a crenellated surface (24a) capable of coming into contact.   with said housing (16a) of the second body (12a).