DE2354782A1 - Formed plastic piece for wiper blade - is plastics plug forming blade hinge and providing electrical and vibration insulation - Google Patents

Abstract

The plug of the plastic hinge piece is inserted upward between the sides of the wiper arm until the bored holes in the plug align with the holes in the wiper arm. The plastic flaps connected to the base of the plug are then folded upward around each of the sides of the arm and the bosses situated in the flaps are entered through the holes in the arm sides and into the holes in the plug. This whole assembly is inserted into the wiper carrier which the outsides of the flaps of the plastic hinge are formed t fit. Protrusions on the plastic hinge piece retain the whole hinge in the wiper carrier and prevent excessive movement.

Description

SWF special factory for car accessories Gustav Rau GmbH. Y- 7.12 Bietigheim-

A 12.198

ΡΑΤ / y / Vo / Wi 30.10.1973

Plastic connector for the bracket of a wiper blade

Addendum to patent .... .... . . . . ...

(Patent application P 23 33 995.9)

_The: main patent relates to a plastic connecting member for articulated connection of nested hangers of a wiper blade, which is inserted into a Gelenkaufnähme of the smaller lug between its legs, wherein the outer surfaces of the connecting member and the legs of the smaller lug receptacles have for pivot pins attached to spring tab of the connecting member are attached, in which these PedeAappen of the connecting member can be folded under "engagement of the pivot pin in these receptacles on the outer surfaces of the legs of the smaller bracket and in which the legs of the larger bracket fix the spring tabs folded down into the engagement division.

In the case of the plastic connecting link, an additional Bearing bolts saved and the joint connection between the brackets of the wiper blade has small bearing noises and requires little installation effort. The thigh

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the larger stirrups are through sections on the connecting link set, which are bent in recordings of the connecting link. These bent sections of the larger one Brackets can come into contact with the front edges of the legs of the smaller bracket »

It is the object of the invention, the plastic connecting link to improve according to the main patent so that the two hinged brackets are clearly electrical are determined in isolation from each other and certainly cannot come into contact with one another.

This is achieved according to the invention in that the connecting member from the underside in the smaller bracket can be introduced that the spring tabs with the pivot pin on the legs of the smaller bracket can be folded up and that the larger one over the folded up spring tabs sliding bracket is held on the same by means of locking elements of the connecting member. The wings are on this one Plastic connector clearly electrically against each other insulated because the legs of the smaller bracket are embedded on all sides in the plastic connecting link are. The advantages of the main patent - no additional one Bearing bolts and little installation effort - remain unchanged obtain.

The assembly of the wiper blade is simplified in that the main stirrup of the shawl is designed as a smaller stirrup and the intermediate or claw stirrups as larger stirrups are. The larger intermediate or claw bracket with the vish rubber then only needs over the one on the smaller one Main bracket attached plastic connecting links pushed on to be, with their spring tabs are automatically brought into their engagement position. The folding up the spring tab is facilitated by the fact that the spring tabs on the outer surfaces of the connecting member

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Place it vertically and on the bridge of the smaller bracket remote side are attached and that the spring tabs over a web, the length of which is the thickness of the thighs of the larger bracket, from the connecting link are discontinued, these webs in the extension of the Outer surfaces of the link are aligned.

So that the legs of the larger bracket also on the The upper side facing the smaller bracket cannot come into contact with the smaller bracket, it is further provided that the outer surfaces of the spring tabs are adapted to the contour of the legs of the larger bracket exhibit, ;

The invention is illustrated with reference to one in the drawings Embodiment explained in more detail. Show it

Fig. T is a section through the articulated connection between the main bracket and a Intermediate bracket of a Vischblatt with the Plastic connecting link according to the invention,

Z shows the side view of this articulated connection,

Fig. 3 shows the side view of the plastic connecting link in the starting position and

FIG. 4 shows a section through the plastic connecting member according to FIG. 3 along the line Line IV-IV. ::; :

As can be seen from FIGS. 1 and 2, the main bracket with the legs 16 and 1S is a smaller bracket 'and the intermediate bracket with the legs 23 and 25 as larger Bracket trained.

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The plastic connecting member 10 is produced in the form shown in FIGS. 3 and h. It consists of a middle part which is pushed into the smaller bracket from the underside so that its outer surfaces rest against the inner walls of the legs 16 and 18. The middle part 10 has blind bores 11 and 19 on its outer surfaces, while the legs 16 and 18 have bores 17 adapted to them.

On the protruding from the underside of the smaller bracket part of the plastic connecting link 10 are about the Film hinges 1 ^ and 22, the spring tabs 12 and 20 in one piece molded. These spring tabs 12 and 20 carry the bearing pins 13 and 21 and are so far away from the webs Central part offset that they enclose the lower edges of the legs 16 and 18 when folded up. When folding up the spring tabs 12 and 20 engage, the bearing pins 13 and 21 through the holes 17 in the legs 16 and 18 through lind penetrate into the blind bores 11 and 19. This Folding up the spring tabs 12 and 20 can take place when the legs 23 and 25 of the larger bracket over the Plastic connector to be pushed. The top edges the legs 23 and 25 abut in the installed position on the Stops 31 and 32 of the spring tabs 12 and 20, which the Cover legs 23 and 25 with it upwards.

The plastic connecting link has on the two transverse sides the insertion stops 29 and 30 and the locking elements 27 and 28 in the form of resilient tongues. With these elements, the plastic connecting link becomes more well known Way set in a recording in the web of the intermediate bracket. The front shoulder 26 of the plastic connecting link serves to limit the pivoting movement of the intermediate bracket on the main bracket.

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Claims (3)

- 5 - A 12 198 PAT / j / Vo / Wi 3o.io.i973 Expectations Plastic connecting link for articulated connection of nested brackets on a bract, which is used in a joint receptacle of the smaller bracket between its legs, at which the outer surfaces of the "link and the Leg of the smaller bracket, receptacles for pivot pins have on the spring tabs of the connecting member are attached, in which these spring tabs of the connecting link engaging the pivot pin in these recordings on the outer surfaces of the · legs · of the smaller bracket are foldable and where the legs of the larger bracket the folded down into the engaged position Set spring tabs, according to patent ........... (patent application P 23 33 995.9), characterized in that that the connecting member (1O) can be inserted into the smaller bracket (i6, 18) from the underside, '< that the spring tabs ("12, 20 ') with the pivot pins (13> 21 ") on the legs (1 6, 18) of the smaller bracket can be folded up and that the larger bracket (.23, 25) that can be pushed over the folded-up spring tabs (12, 20) is held on the same by means of locking elements (27, 28) of the connecting member (1O). 2. Plastic connecting link according to claim 1, characterized in that the main bracket of the wiper blade as a smaller bracket (i6, 18) and the intermediate or Claw stirrups designed as larger stirrups (23. 25) are. 509820/0477 - 6 - A 12 198 3. Plastic connecting link according to claim 1 or 2, characterized in that the spring tabs (12, 10) on the outer surfaces of the connecting member (1O) protrude approximately vertically and on the web of the smaller one Bracket (16, 18) facing away from the side are attached. k. Plastic connecting link according to claim 3> characterized in that the spring tabs (12, 20) are separated from the connecting link (10) by a web, the length of which corresponds to the thickness of the legs (23 j 25) of the larger bracket Bars are aligned in the extension of the outer surfaces of the connecting link (10). · Plastic connecting link according to one of claims 1 to k, characterized in that the outer surfaces of the spring tabs (12, 20) have stops (31 »32) adapted to the contour of the legs (23j 25) of the larger bracket. 509820/0477 Empty page