Apparatus for fixing wiper blade to its arm

KB 3-A4 according to SIS 61 30 13 ailf 13bb? I09Aa

<td>SWEDEN</td><td>(12) PUBLISHING LETTERS</td><td>(B) (₂n 7609914-2</td>

<td>(19) SE</td><td>(51) International class³</td><td>B 60 S 1/40</td>

<td></td><td>(44) Application outsourced and outsourced 83-08-01</td><td>(11) Publication 428 902</td>

<td></td><td>publication paper</td><td>number</td>

<td></td><td>(41) Aneokan widely available 77^_03 ”17 (22) Patent Application filed 76-09-08</td><td rowspan="2">Application received aom</td>

<td></td><td>(24) Running day</td>

<td>Patent Office</td><td>(62) Stamansokan number</td><td>Q Swedish patent application</td>

<td></td><td>(86) International filing day</td><td>Q completed international patent application</td>

<td></td><td>(86) Filing date for the application</td><td>with number</td>

<td></td><td>on European patent</td><td>□ converted European patent application</td>

<td></td><td>(30) Priority information</td><td>with number</td>

<td></td><td>75-09-16 FR 7528302</td><td></td>

<td colspan="2">(71) Applicant: Paul Journée SA, Courbevoie FR (72) Inventor: M Journée, Reilly</td><td></td>

<td>(74) 0mbud: Brain</td><td></td><td></td>

<td colspan="2">(54) Name: Device for detachable attachment of one</td><td>wiper blade on a swivel</td>

<td>Wiper</td><td></td><td></td>

(56) Published publications: FR 2 066 675 (B60S 1/00)

GB 1 254 109 (B60S 1/40)

US 3,641,614 (15 / 250.32)

US 3,845,519 (15 / 250.32)

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The invention relates to a device for releasably attaching a wiper blade to a pivotable wiper arm, especially for motor vehicles, wherein a fastening pin laterally projects from the first part, e.g. the wiper blade and is slidable into one with the other part, e.g. the wiper arm, continuous drilling and where lockable by means of a removable locking means.

For mounting the blade to the arm, it is known to provide the blade or arm with a protruding pin, which is intended to cooperate with a bore in the other part and provided with locking means, which permits a rotation of the blade relative to the arm around the pin.

This known fastening device permits a rapid replacement of the blade, which is the most vulnerable to wear and which needs to be replaced quite frequently. However, these fasteners permit only the selection of blades specially designed for the particular case, i.e. those provided with a bore for receiving a pin with locking means for this pin, or such blades which are themselves provided with a pin. They do not allow the mounting of blades of another type, e.g. those with bayonet or hook type fasteners. The known devices, when the pin is connected to the arm, necessitates the replacement with a blade provided with locking means, which expensiveens the replacement part formed by such a blade.

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The invention is intended to eliminate the disadvantages of the known devices.

For this purpose, the invention relates to a device for attaching a windscreen wiper blade to a pivotable wiper arm, one of the two parts comprising a protruding pin which is intended to cooperate with a bore arranged on the other part. The device according to the invention has the characteristics that the locking means extends along the pin to engage the wall edge of the bore directed from the first part in the locking position.

The use of locking means associated with the pin makes it possible to simplify the part which does not include the pin, which is very advantageous when this part is made of the blade. In addition, the locking means can cooperate with an intermediate mounting means, which is provided with a bore and which is arranged to be attached to a fastener of another type, e.g. bayonet or chin type.

Some embodiments of the invention are described below with reference to the accompanying drawing.

Fig. 1 shows a longitudinal section through a fastening pin after assembly with an intermediate mounting member according to a first embodiment of the invention. Figure 2 shows in the same way as Figure 1 the parts of the device during assembly. Figures 3, 5, 7, 9 and 11 show similar embodiments of the device in the same way as Fig. 1. Figures 4, 6, 8, 10 and 12 similarly to Fig. 2 show the different embodiments during assembly.

In the illustrated embodiments, the pin 1 is fixedly mounted on the wiper blade 2 and cooperates with a bore 3 in an intermediate member 4. The intermediate member 4 is arranged to cooperate with a non-shown wiper arm provided with a bayonet or hook type fastener. The intermediate member 4 can be omitted and the pin 1 is placed directly in a bore passing through a wiper arm. On the contrary, as previously stated, the pin 1 can be fixedly fixed to the wiper arm.

In the embodiment of Figures 1 and 2, the blade 2 is provided with a bracket 5, which is provided with a pin 6, around which is pivotally mounted a locking member 7 in the form of a U-shaped curved leaf spring, which is turned away from the pin 6 end is provided with a curved portion 8, whose convex

7609914-2 side cooperates with a recess 9 at the free end of the pin 1.

In the embodiment of Figures 3 and 4, the pin 1 is provided with an axially through bore, in which a slide 10 is axially displaceable against the action of a single spring 11. The slide 10 has a tapered head 12 which, at relaxed spring 11, extends an elastic expandable, slotted locking ring 13. When the spring 11 is compressed, the ring 13 contracts and assumes a diameter smaller than the diameter of the bore 3.

In the embodiment of Figs. 5 and 6, the pin 1 consists of a tube 14, in which is arranged a locking member of elastic material consisting of a resilient flexible finger 15 which terminates with a hook 16, which in the mounted position (Fig. 5) pushes protruding from the intermediate member 4. The mounting also takes place by elastic bending of the finger 15 to retract the hook 16 so that it can slide into the intermediate member 4.

In the embodiment of Figs. 7 and 8, the pin 1 is provided with an axial bore in which a slider 17 is displaceable against the action of a spring 18. The slider 17 is terminated by a fork 19 which cooperates with a locking means 20 in the form of a V -shaped curved spring which is retained by a pin 21 fixed in the pin.

In the embodiment of Figs. 9 and 10, the pin 1 is made of elastic material and is provided with a longitudinal diametrical slot 22 defining two arms 23 and 23 'provided with outwardly projecting hooks 24,

24 ', which in the mounted position engages the outer end of the intermediate member 4 (Fig. 9). For removal, the arms 23 and 23 'are pressed together to be able to insert the hooks 24, 24' into the intermediate member 4.

In the embodiment of Figs. 11 and 12, the intermediate member 4 is provided with an inner ledge 25 and the pin 1 carries a locking member 26 with two resilient legs 27 which cooperate in the mounted position with the ledges 25. The free end of the pin 1 carries one against the action of a return spring 29 is depressable button 28 which cooperates with a cylindrical part 30 with the legs 27, which when the button 28 is pressed presses the legs 27 and releases the ledge 25.

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