DE102008033787A1 - Device for limiting pivoting angle of door of motor vehicle, has bushings inserted into passage holes and partially covered by plastic material of plastic sleeve at outer side of punch holes of bushings - Google Patents

Abstract

The device has a catch hook (2) and a bearing lug (3) formed at respective ends, where a plastic bearing sleeve is formed in the bearing lug. A catch arm (1) has passage holes (4, 5) that are parallel to a middle axis of the bearing lug. A set of plastic bushings (6, 7) is inserted into the passage holes. The bushings are partially covered by a plastic material of the plastic sleeve at an outer side of punch holes of the bushings. Each plastic bushing consists of a bushing part and a ring part that is inserted on an end of the bushing part.

Description

The The invention relates to a device for pivoting angle limitation of motor vehicle doors, consisting of a cross-section flat rectangular steel tentacle with molded on a first end Fishing hook and formed at the second end Lagerauge, in the one Bearing bush made of plastic is used or molded, 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 said door lock of this type are in the art widely known.

Common is that the tentacles made of steel galvanic because of corrosion protection be coated. This is necessary because even after the sheath of the tentacle with a plastic sheath the Durchgangslochungen are exposed and not covered by plastic material, so that in these areas, ie in the area of the hole reveal, risk of corrosion consists. The Durchgangslochungen serve on the one hand, the tentacles in the tool by means of appropriate retaining pins to position 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 form water drain holes when the corresponding Device is installed as intended. On The top of the wide surface of the tentacle may become Drain rainwater, which drain through the corresponding Durchgangslochungen can.

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

In the prior art, a method for molding of such a molded part is known, including on the DE 102 28 513 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.

outgoing From this prior art, the invention is based on the object to provide a device of the generic type, produced using conventional 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 to this problem, the invention proposes plastic bushings are inserted into the through-holes, the outside of the perforation of the plastic bushes from the plastic material of Plastic sheath are at least partially covered.

According to the invention used in the through holes perforated plastic bushings. The so equipped tentacles can then in one Injection mold of conventional design with fixed Centering pins are plastic coated, with the centering pins engage in the plastic bushes. Through the plastic coating The plastic bushings are at least partially at their ends Covered by plastic compound, leaving the edges the plastic bushing covered by the plastic material of the plastic sheath are, so that a positive connection is achieved. With appropriate Material selection, the plastic sockets even with the Plastic compound of the plastic sheath materially connected be, because a certain welding of the materials with each other he follows. In the device thus provided the Durchgangslochungen be maintained, so that this for the water drain or the like are available. In addition, the previous injection molding tools be used. It is at most necessary that the through holes of the Tentacles are slightly larger in size, so that despite the plastic bushings used an intervention of Pins of the plastic mold is achieved. On a corrosion protection coating The steel part can basically be omitted, as the Steel part is completely encased with plastic, in particular also in the area of the soffits of the Durchgangslochungen.

It is preferably provided that each Plastic bushing consists of a female part with integrally formed on the first end of the female part flange or collar, and a ring member which is attachable to the second end of the female part, or that the second end of the female part is formed into a rivet head.

By This training is the pre-assembly or merging the catching arm with the plastic bushings can be easily automated, without a large operating effort would be necessary. The plastic bushings can be on 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, it is preferably provided that the flange edge reset relative to the first end of the socket part is arranged.

hereby will provide the desired coverage with the plastic material 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 end face of the plastic bushing or of the ring part is covered with plastic material.

Around to effect a good bonding of the plastic material to each other and possibly also a welding of the To achieve materials with each other, it is provided that the plastic bushing and the plastic sheath made of the same plastic.

One preferred material for this example is 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 wherein in the troughs Durchgangslochungen with sockets are provided.

Around a perfect centering and mounting of the tentacle in the To achieve injection molding tool is preferably provided that the tentacle near its two ends and midway between them Through holes with bushings 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 ensured within the plastic injection mold becomes.

One Embodiment of the invention is in the drawing shown and described in more detail below.

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 the coating of 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 clarifies exists every plastic bush 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.

The Invention is not limited to the embodiment, but in the context of the Revelation often variable.

All new individual items disclosed in the description and / or drawing. and combination features are considered essential to the invention.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 10228513 A1 [0005]

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 these through holes ( 4 ) with sockets ( 6 . 7 ) having.