DE102008033787B4 - Device for pivot angle limitation of motor vehicle doors - Google Patents

Abstract

Device for limiting the swing angle of motor vehicle doors, comprising a catch arm (1) made of steel with a rectangular cross-section with catch hook (2) formed on a first end and bearing eye (3) formed on the second end, into which a bearing bush made of plastic is inserted or formed, wherein the catching arm (1) has through holes (4, 5) parallel to the central axis of the bearing eye (3), and wherein the entire catching arm (1) together with the bearing eye (3) and catching hook (2) is provided with a plastic jacket, characterized in that in the through-holes (4, 5) plastic bushes (6, 7) are used, which are at least partially covered outside the perforation of the plastic bushes (6, 7) from the plastic material of the plastic sheath.

Description

The The invention relates to a device for pivoting angle limitation of motor vehicle doors, consisting from a cross-sectionally flat rectangular tentacle made of steel with formed on a first end fishing hook and formed on the second end Bearing eye, in which a bearing bush made of plastic used or is formed, wherein the tentacle parallel to the central axis of the bearing eye Durchgangslochungen has, and wherein the entire tentacle together with bearing eye and fishing hook provided with a plastic sheath.

So called door arrester This type are widely known in the art.

It is usual that the tentacles made of steel galvanically coated for corrosion protection become. This is necessary because even after the sheathing the tentacle with a plastic sheath the Durchgangslochungen are exposed and not covered by plastic material, so in these Areas, ie in the field of Lochlaibung, there is a risk of corrosion. The Durchgangslochungen serve on the one hand, the tentacles in to position the tool by means of appropriate retaining pins, which pass through or intervene in the through holes, around the steel catch arm in the injection mold at a distance From the walls of the mold to fix so that the tentacle with Plastic can be sheathed. On the other hand, these Durchgangslochungen serve also to water drainage openings to form when the appropriate device is installed as intended. On the top of the wide area the tentacle can settle rainwater, which by the corresponding through holes can drain.

at This type of production and for this purpose is not possible, the areas of the Durchgangslochungen also with plastic too coat.

In the prior art, a method for molding of such a molded part is known, including on the DE 103 26 794 A1 is referenced. The disadvantages resulting from this known production method are described there. In this document, a way is given how a tentacle made of steel can be used without corrosion coating. For this purpose, a certain procedure is required, namely, after the injection of the plastic, the corresponding centering pins are removed from the molded part, so that there is a cavity between the centering pins and the molded part. By pressing the plastic mass of the cavity is filled with plastic compound and thus the steel material covered in this area. Such an arrangement is very expensive, since a complicated compared to the conventional design tool with additional movable centering pins must be used. In addition, it is practically impossible by this procedure to coat permanent perforations only on the wall, but the holes or Zentrierausnehmungen are completely filled with plastic.

From the DE 43 25 551 A1 is a device for Schwenkwinkelbegrenzung of motor vehicle doors of a similar type known. The device consists of a cross-sectionally flat rectangular catch arm of steel with integrally formed on a first end fishing hook and formed on the second end bearing eye. The metallic parts are encased with a plastic material.

Another device of similar kind with partially uncoated surfaces is from the DE 601 01 777 T2 known.

outgoing From this prior art, the invention is based on the object a device of the generic type to create that produced using previously common tools which can be applied to a galvanic coating or other Corrosion coating of the steel part can be dispensed with and at the continuous hole areas are maintained to the drain rainwater or the like.

to solution this task strikes the invention that in the through holes plastic bushings are used outside the perforation of the plastic bushes of the plastic material of the plastic sheath are at least partially covered.

According to the invention punched plastic bushings are inserted into the through holes. The tipped arms can then be plastic coated in an injection mold of conventional design with fixed centering pins, the centering pins engage in the plastic sockets. Due to the plastic coating, the plastic bushings are at least partially covered by plastic compound on their end faces, so that the edges of the plastic bushing are covered by the plastic material of the plastic shell, so that a positive connection is achieved. With appropriate choice of material, the plastic bushings can even be cohesively connected to the plastic material of the plastic jacket, since a certain welding of the materials takes place with each other. In the apparatus thus provided, the through-holes are retained, so that they for the water drain or the like for To be available. In addition, the previous injection tools can be used. It is at most necessary that the Durchgangslochungen the tentacle be dimensioned slightly larger, so that despite the plastic bushings used an engagement of the pins of the plastic mold is achieved. On a corrosion protection coating of the steel part can be dispensed with in principle, since the steel part is completely covered with plastic, especially in the area of the soffits of the through holes.

Prefers It is provided that each plastic bushing from a socket with flanged edge or collar formed on the first end of the socket consists of, as well as a ring part, which on the second end of Socket part is attachable, or that the second end of the socket part transformed into a rivet head.

By this training is the pre-assembly or merging of Easy to perform tentacles with the plastic sockets in a simple manner, without that a big one operating expenses would be necessary. The plastic sockets can the tentacles first be fixed before the tentacle is then introduced into the mold, in which he is coated with plastic. Instead of the extra Ring part can also rietkopfartig the second end of the female part be reshaped, leaving a secure and permanent fit of the socket part reached at the tentacle.

Under circumstances is preferably provided that the flange edge opposite the reset the first end of the female part is arranged.

hereby will provide the desired coverage the plastic material of the plastic sheath still promoted.

Out For the same reason, it is preferably provided that the ring part on its side facing away from the flange edge in mounting target position is conically shaped.

Especially It is envisaged that the flange edge and the ring part in assembly target position is covered by the material of the plastic sheath.

Even though it is sufficient if the flange and the ring part or the Nietkopfartige forming part frontally only partially, but over his entire circumference is coated with plastic compound is preferred that the entire face the plastic bushing or the ring part covered with plastic material becomes.

Around to effect a good bonding of the plastic material to each other and possibly also a weld To achieve the materials together, it is envisaged that the Plastic bush and the plastic sheath of the same plastic consist.

One preferred material for this is for example polyamide.

Especially is also provided in a conventional manner that the plastic sheath forms wave-like locking contours on both broad sides of the tentacle being in the troughs Through holes are provided with sockets.

Around a perfect centering and mounting of the tentacle in the injection mold To achieve, it is preferably provided that the tentacle near his both ends and in the middle between these through holes Sockets has.

These Through holes are for receiving centering pins of the plastic injection tool determined, whereby an exact position assurance and alignment of the Part is ensured within the plastic injection mold.

One embodiment The invention is illustrated in the drawing and in the following described in more detail.

It shows:

1 a device for pivoting angle limitation in front of the plastic casing in view;

2 likewise shown partly with invisible lines;

3 and 4 a plastic bushing and an associated ring member;

5 Parts 3 and 4 in the final assembled position.

The inventive device consists of a cross-sectionally flat rectangular tentacle 1 made of steel, which has a molded catch hook at a first end 2 and at a second end a bearing eye 3 in which, for example, a bearing bush made of plastic is inserted or molded. The tentacle 1 points parallel to the central axis of the bearing eye 3 clearance holes 4 . 5 on. In the final state is the entire tentacle 1 with bearing eye 3 and fishing hooks 2 provided with a plastic sheath, that is coated with appropriate plastic compound. In the Durchgangslochungen 4 . 5 be plastic sockets 6 . 7 used, which are perforated, so a Durchgangslochung by the tentacle 1 form, but in the final state, so after coating the tentacle 1 are at least partially covered with plastic compound of the plastic mass at least in the edge region, so that they are positionally secured and held captive. This ensures that for the formation of the plastic Durchgangslochungen 4 are available in the corresponding positioning pins 11 the plastic mold can be introduced, yet still no galvanic coating of the tentacle 1 is required, since this in the final state completely at all edges and in the area of the Durchgangslochungen 4 . 5 is covered by the plastic material. As in particular by means of 3 to 5 makes clear, there is every plastic bushing 6 from a perforated socket 8th , which at a first end of a molded flange or collar 9 has, as well as from a ring part 10 , which on the tapered end of the socket part 1 is pluggable. In the installation target condition, the situation is reached, as in 5 is shown. This is also in 1 and 2 shown left in the pre-assembly situation and in the middle and right in the final assembly situation. In the 1 and 2 are the holes 5 not yet equipped with appropriate sockets. But these are also provided in the final state with appropriate sockets. Instead of the separate ring part 10 is also an education possible in which the second end of the female part is formed into a rivet head, as for example in 5 is clarified. After encapsulation of the thus prepared tentacle 1 with plastic compound are the plastic bushing parts 6 . 7 held positively or even cohesively, provided a material connection between the plastic jacket and the socket parts 6 . 7 he follows.

As in particular from 4 can be seen, is the flange edge 9 opposite the first end of the socket part 6 arranged reset, so that the plastic sheath covers this flange edge, but with the end face of the female part is substantially flush. Preferably, the ring member 7 or the reshaped rivet head, on its flanged edge 9 in side facing away from assembly, conically shaped, as in 5 is illustrated. Preferably, both the flange edge 9 as well as the ring part 10 or the formed rivet head covered by the material of the plastic sheath.

Preferably, all plastic elements made of the same material. In the finished part, the plastic sheath on both broad sides of the tentacle 1 form wave-like latching contours, wherein in the troughs Durchgangslochungen 4 . 5 are provided to form Regenablaufmöglichkeiten. For prefixing in the corresponding injection mold, the tentacle near its two ends and centrally between them the Durchgangslochungen 4 with sockets 6 . 7 on.

Claims (8)

Device for pivoting angle limitation of motor vehicle doors, consisting of a cross-sectionally flat rectangular catching arm ( 1 ) made of steel with a hook formed on a first end ( 2 ) and formed on the second end bearing eye ( 3 ), in which a bearing bush made of plastic is inserted or molded, wherein the tentacle ( 1 ) parallel to the central axis of the bearing eye ( 3 ) Through holes ( 4 . 5 ), and wherein the entire tentacle ( 1 ) together with bearing eye ( 3 ) and catch hooks ( 2 ) is provided with a plastic jacket, characterized in that in the through holes ( 4 . 5 ) Plastic bushes ( 6 . 7 ) are used outside the perforation of the plastic bushes ( 6 . 7 ) are at least partially covered by the plastic material of the plastic sheath. Device according to claim 1, characterized in that each plastic bushing ( 6 . 7 ) from a female part ( 8th ) with at the first end of the female part ( 8th ) integrally formed flange edge ( 9 ) or collar, as well as a ring part ( 10 ), which on the second end of the female part ( 8th ) is plugged, or that the second end of the female part ( 8th ) is converted into a rivet head. Device according to claim 2, characterized in that the flanged edge ( 9 ) opposite the first end of the female part ( 8th ) is arranged reset. Device according to claim 2 or 3, characterized in that the ring part ( 10 ) on its flanged edge ( 9 ) facing away from mounting target position is conically shaped. Device according to one of claims 2 to 4, characterized in that the flange edge ( 9 ) and the ring part ( 10 ) is covered in assembly target position of the material of the plastic sheath Device according to one of claims 1 to 5, characterized in that the plastic bushing ( 6 . 7 ) and the plastic sheath made of the same plastic. Device according to one of claims 1 to 6, characterized in that the plastic sheath on both broad sides of the tentacle ( 1 ) wave-like latching contours, wherein in the troughs Durchgangslochungen ( 4 . 5 ) with sockets ( 6 . 7 ) are provided. Device according to one of claims 1 to 7, characterized in that the tentacle ( 1 ) near its two ends and in the middle between them Through holes ( 4 ) with sockets ( 6 . 7 ) having.