FR2694253A3 - Wiper device for a motor vehicle - Google Patents

Abstract

a) Windscreen wiper device for a motor vehicle. b) Device characterized in that, a latching socket for a hinge pin (52) extends from the core (42), connecting the channel walls (38, 40) of the plastic element between these walls (38, 40), for a hinge pin (52), the ends of which are held in the cheeks (32, 34) of the frame element.

Description

i "Wiper device for a motor vehicle"

  The invention relates to a wiper device

  automotive ice-cream comprising a driven wiper arm whose free U-shaped section end hingeably bears an armature member of a windscreen wiper blade; armature engaging between the U-arms of the arm by two cheeks spaced apart, the frame member with its two cheeks apart sinks between the bran-10 ches U-shaped wiper arm, the walls of the arm a plastic element with a channel section

  disposed between the U-shaped arms of the wiper arm and the parallel cheeks of the armature, the plastic element of which the ratcheting means on the outer face of these channel walls cooperates with latching means cor-

  corresponding to the U-shaped arms of the wiper arm. Such a scanning device is already known from DE-OS-38 10 893 in which a U-shaped plastic element is engaged in a main yoke of the armature; this plastic element is held with nipples in the snap-in housing of a stirrup

  auxiliary part of the frame of the ice-soot broom.

Advantages of the invention

  The invention relates to a wiper device

  ice of the type defined above, characterized in that a latching engagement for an axis of articulation extends from the core, connecting the channel walls of the plastic element between these walls, for a hinge axis whose ends are maintained

  in the cheeks of the frame element.

  The device according to the invention has the advantage of providing a simple and reliable attachment between the wiper arm of the armature of the blade by the positioning of the latching housing on

  the soul of the plastic element

  has a particularly narrow and sufficient structure

  did so to satisfy the requirements of form.

  Drawings. An exemplary embodiment is shown in

  drawings and will be described in more detail in the description

following statement.

So

  FIG. 1 is a representation of

  a windshield wiper lever with one arm

  wiper and broom in side view.

  Figure 2 is an enlarged sectional view of the reference detail 2 in Figure 1 of the attachment zone between the wiper arm and the blade. FIG. 3 is a side view, on an enlarged scale, of a channel-shaped plastic element located between the windscreen wiper arm and

a frame element.

  FIG. 4 is a view from above of the

plastic element.

  FIG. 5 is a side view of the element

plastic material.

  FIG. 6 is a section of the element in

  plastic material according to line VI-VI of Figure 4.

  FIG. 7 is a section of the plastic element along the line VII-VII of FIG. 4. FIG. 8 is a sectional view of the element

  plastic material according to line VIII-VIII of the

re 4.

  Description of the exemplary embodiment

  The wiper device of a vehicle

  not shown in detail comprises a wiper lever

  ice 10 formed of a wiper arm 12 driven and a broom articulated at its free end The blade 16 comprises a frame 18 with several elements and a blade 20 resting on the windshield not shown a

  motor vehicle; this blade is carried by

  mature 18 The frame 18 consists of several ele

  22 and a rounded part 24 which caps them,

  being articulated to the free end 14 of the arm of es-

  ice-soot 12 The wiper itself has a free end 14 whose section is made U-shaped.

  This is particularly visible in Figure 8.

  The end of the wiper arm 14 has two U-shaped legs 26, 28 separated by an interval, which are connected to a core 30; at its attachment point, at the end of the wiper arm 14, the portion 24 comprises two cheeks 32, 34 which thus penetrate between

  the U-shaped branches 26, 28, of the end of the spider arm

  ice soot 14, so that they spread

  tooth parallel to the U-shaped arms 14

  plus, a plastic element shaped like a

  nal 36 is in the area of the articulated link

  the arm 12 and the blade 16, this element 36 is

  particularly in Figures 3 to 5 Thus,

  the plastic element 36 has walls of

  nal, lateral 38, 40 and a channel bottom or soul 42

  which connects them Coaxial nipples 44 and 46 are

  tagously molded on the outer sides of the walls

  38, 40 are associated with these nipples means of clipping

  made by passages or holes 48, 50 in the U-shaped arms 26, 28 of the wiper arm

  shows in particular Figure 8, the element 36 re-

  made of elastic plastic material is

  in the free end 14 of the wiper arm 12, so that its inner walls are substantially covered by the element of material

  Figure 8 also shows that the di-

  mensions correspond between the end of the arms of the wiper 14 and the cheeks 32, 34 of the part

  reinforcement 24 so that the cheeks 32, 34 fit into each other

  the walls 38, 40 and the U-shaped arms 26, 28 of the windscreen wiper arm 12 The plastic element

  36 is thus between the cheeks 32, 34 and the branches

  U-shaped 26, 28 In addition, Figures 2 and 8 show

  that a hinge pin 52 is maintained by its former

  tremities in the cheeks 32, 34

  54 (FIGS. 2 and 7) is associated with the axis of articulation

  This dwelling comprises two arms 56, 58 which

  can deviate elastically with an interval between

  They extend between the walls of the channel from the bottom of the channel or core 42 connected to the walls of the channel They have recesses forming bearings

  in facing relation 60, 62 adapted to the diameter of the axis of ar-

  ticulation so that they come to rest after a momentary spacing of the arms 56, 58, in the latching housing 54 thus formed, and remain there kept free in rotation The assembly thus produced is shown in FIG. 2 The arms 56, 58 as well as the pins 44 and 46 are in one piece with the plastic element 36 In addition, a protective edge 64 is also fitted to the plastic element, which edge covers the end of the front face of the plastic element. the end 14 of the wiper arm 12

surrounding him.

  To mount the broom lever, the plastic element is inserted into the free end of the wiper arm as previously described, the nipples 44, 46 thus entering the passages 48, 50.

  associated U-shaped branches 26, 28 After this,

  binds the wiper arm thus pre-assembled to the blade, by snapping it onto the armature piece of the blade in the direction of the arrow 66 (FIG. 2). Thus, the two arms 56, 58 penetrate between the cheeks 32, 34

  of the reinforcing element 24 and, after a small gap

  mentally, both cheeks 32, 34, the hinge axis

  in the manner already described to allow the clipping

  wiper arm 12 on the caliper of the armature

  24, the walls of the channel 38, 40 of the element

  Plastics 36 have open slots 66 extending from the edges of the free walls of the channel towards the

background 42.

  It is also desirable to mention

  that the reinforcing piece 24 has a main section-

  U-shaped and is machined at the hinge axis so that the two cheeks 32,

  34 are no longer connected to each other by a veil.

  The two cheeks are simply parallel and apart.

Claims (2)

R E V E N D I C A T IO N S   1) Wiper device for vehicle   automobile comprising a wiper arm, driving   the free end of a U-shaped section is hinged in a hinged manner to a reinforcing element of a   wiper blade, this reinforcing element   between the U-arms of the arm by two cheeks apart, the armature element with its two cheeks apart sinks between the U-shaped arms of the wiper arm, the walls of a material element.   channel-shaped sectional plastic being   placed between the U-shaped arms of the wiper arm and the parallel cheeks of the armature, the element   plastic material, the locking means of which   on the outer face of these channel walls cooperates with corresponding latching means of the U-shaped arms of the wiper arm, characterized in that a latching engagement (54) for a hinge pin ( 52) extends from the core (42), connecting the   channel walls (38, 40) of the plastic element   between these walls (38, 40) for a joint axis   lation (52) whose ends are maintained in   the cheeks (32, 34) of the reinforcing member (24).   2 *) Device according to claim 1,   characterized in that the latching engagement (54) pos-   two resilient arms (56, 58) having a gap therebetween, which arms are provided with recesses   forming bearings (60, 62) symmetrical for the axis of ticulation (52).   30) Device according to one of the claims   1 or 2, characterized in that the means for   ratcheting of the plastics element (36) are preferably made by coaxial pins (44, 46) and the corresponding latching means of the arm (12) are formed by passages (48, 50). suitable for the nipples (44, 46).   ) Device according to one of the claims   1 to 3, characterized in that the locking means   quetting (44, 46) and the snap-in sockets (54, 56, 58) form a single piece with the material element plastic shaped channel.