JPH06346646A - Automobile door lock with electrical constituent element - Google Patents

Abstract

PURPOSE: To make the manufacture of a motor vehicle door lock easily and to protect electrical leads by burying the leads in a door lock housing made of an injection-molded synthetic resin, and at the same time, additionally providing connection devices for electrical components, such as the switch, etc. CONSTITUTION: Electrical leads 7 are buried in a lock housing 3 made of an injection-molded synthetic resin. Then connection formations 10 are provided for the leads 7, and the connection leads 9 of electrical components 6 are connected to the formations 10. As a result, a motor vehicle door lock can be assembled easily, and the breakage of the door lock can be reduced when the lock comes into contact with an object. In addition, the door lock can be protected from corrosion and vibrations.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a lock plate, a lock mechanism component fixed or mounted in a holding zone of the lock plate, a lock casing including a bottom wall and a front wall, and a contact device connected via a conductive wire. The invention relates to a motor vehicle door lock comprising electrical components forming an electric circuit and connecting conductors for the components.

The electrical components referred to herein include, for example, a switch for operating a central locking device, a switch for operating an anti-theft protection device, a switch for sensitizing an anti-theft alarm, a door opening and closing. Is a switch for displaying, and a switch for the electric motor for driving the central locking device. The connecting conductors of the electrical component are connecting terminals, connecting rods, connecting conductors, etc., and the electrical circuit provides or operates the electrical energy of the electrical component.

[0003]

2. Description of the Prior Art A known motor vehicle door lock having the construction described at the beginning of the technical field is constructed as an independent, exposed single-conductor cable or multicore cable, which is incorporated in the motor vehicle door lock as a conductive wire. There is. Instead of cables, conductive plates are also known. An independent contact device is provided which is secured to the lock casing and is electrically connected to the incorporated components. However, such known door locks are costly in terms of assembly technology and can suffer damage if subjected to extreme stress. This is transmitted to the lock through the door when the door of the vehicle is subjected to high kinematic energy or when the vehicle in motion is subjected to unexpected stress.

[0004]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an automobile door lock having the structure described at the beginning, which is extremely simple from the viewpoint of assembling technology, and at the same time is less likely to be damaged during contact. Is to provide.

[0005]

However, the above-mentioned object is
At least the conductive wire is embedded in a lock casing made of synthetic resin injection-molded by an injection molding method, and in the band portion of the electrical component to which the conductive wire is connected, for a connecting conductor for this component It has been found by the inventors that this is achieved by a door lock characterized in that it has a connection arrangement or a connection device according to the invention.

The invention starts from the recognition that the conductor wires which are not in the form of single- or multi-conductor cables, which are required in motor vehicle door locks of the construction mentioned at the outset, cannot be retrofitted. The present invention utilizes the fact that a metal object can be easily introduced into a synthetic resin by embedding the metal object in an injection molded body. This should be applied without difficulty to the conductive wire of an automobile door lock by treating a lock casing made of injection-molded synthetic resin. The embedded conductor is
It can be protected against mechanical and corrosive stresses. This is because it is embedded in the injection-molded synthetic resin that constitutes the wall portion of the lock casing. In this case, post-installation processing is not necessary. Contact stability is assured because the electrically conductive parts are embedded so as not to be adversely affected by vibrations, so that stress does not hinder the electrical contact as a result. Since the injection-molded synthetic resin has an insulating function, the insulating coating of the conducting wire is unnecessary. In the present invention, it is of course possible to embed the insulated conducting wire.

There may be other configurations and arrangements of the door lock of the present invention. That is, the contact device can also be embedded therein, at least in part, in the zone of the injection-molded plastic of the lock casing. The entire lock casing may be made of injection-molded synthetic resin.

In the present invention, it is possible to embed individual conductive wires in the form of metal wires in the injection-molded synthetic resin forming the lock casing. The conductive wire buried in the injection-molded synthetic resin also serves as a reinforcing material. In a preferred embodiment of the present invention, it is advantageous that the conductive wire is embedded in a lock casing portion made of injection-molded synthetic resin to form a conductive wire bundling portion that emerges from the wiring board. After the lock casing is completed, the conductive wires are insulated from each other by embedding the conductive wires in the injection-molded synthetic resin in the connected electric component parts. In the present invention, the lock plate body or the component holding zone portion thereof is embedded as a reinforcing material in the lock casing made of injection-molded synthetic resin.

[0009]

The present invention will be described more specifically below with reference to the accompanying drawings illustrating embodiments.

The vehicle door lock shown in the drawings has a lock plate 1, a lock mechanism component 2 fixed to or mounted in a holding zone of the lock plate 2, a bottom wall 4 and a front wall 5.
And a lock casing 3 having further,
An electrical component 6 is provided, which is connected via a conductor line 7 to a contact device 8 and forms an electrical circuit. The circuit further has a connecting conductor 9. At least the conductive wire 7 is embedded in the lock casing 3 made of injection-molded synthetic resin. The conductive line 7 is provided in the part of the connected electrical component 6 with a connecting arrangement 10 or a connecting device for the connecting conductor 9 of this component, as can be seen from FIGS. 2, 3 and 4. It is configured in various ways. In FIG. 2 it is shown as solder sleeve 10 and FIG.
In FIG. 4, the embedded conductive wire 7 is formed as a synthetic resin body which is made conductive by electroplating or a synthetic resin layer having a conductive metal coating 11, and a groove is formed in the groove. A hole 12 is provided, and the connecting conductor 9 is covered with a metal 11 and soldered or welded in the groove. 2 to 4, the electrical component 6 is used, for example, as a switch. In a preferred embodiment of the invention, the contact device 8 is also at least partially embedded in the injection-molded synthetic resin part of the casing 3. The lock casing 3 can also be constructed by injection molding, preferably using reinforcements. The conductive wire embedded by the injection molding method can form a reinforcing material. In a preferred embodiment of the present invention, the binding portion 13 in which a plurality of conductive wires 7 are arranged constitutes a wiring board 14. The connected electrical component 6 is embedded in an injection molding synthetic resin,
Insulated from each conductive wire. In the illustrated embodiment, the locking plate 1 is centralized in the component retaining zone part indicated by the dashed line 15. This lock plate body is also embedded as a reinforcing material in the lock casing 3 made of injection-molded synthetic resin.

[Brief description of drawings]

1 is a longitudinal sectional view of an automobile door lock according to the present invention.

FIG. 2 is a partial cross-sectional view of a main part of the vehicle door lock shown in FIG.

FIG. 3 is a partial cross-sectional view of a main part of the automobile door lock shown in FIG.

FIG. 4 is a partial cross-sectional view of a main part of the automobile door lock shown in FIG.

[Explanation of symbols]

1 ... Lock plate 2 ... (Lock mechanism) component 3 ... Lock casing 4 ... (Casing) bottom wall 5 ... (Casing) front wall 6 ... Electrical component 7 ... Conductive wire 8 Contact device 9 Connection conductor 10 Connection structure (connection device) 11 Metal coating 12 Groove hole 13 Conductive wire bundling part 14 Wiring board 15 (on the lock plate) Dashed line showing component holding band)

Claims (5)

[Claims] 1. A lock plate body (1) comprising: a lock mechanism component (2) fixed or attached to a holding zone portion of the lock plate body (1), a bottom wall (4) and a front wall (5). Motor vehicle door comprising a lock casing (3), an electrical component (6) connected via a conductor (7) with a contact device (8) to form an electrical circuit, and a connecting conductor (9) for this component. An electrical component in which at least a conductive wire (7) is embedded in a lock casing (3) made of a synthetic resin injection-molded by an injection molding method, and the conductive wire (7) is connected Door lock, characterized in that it has a connecting structure (10) or a connecting device for a connecting wire (9) for this component (6) in the band section (6). 2. Door lock according to claim 1, characterized in that the contact device (8) is also at least partially embedded in the part of the lock casing (3) made of an injection-molded synthetic resin. 3. The door lock according to claim 1 or 2, wherein the entire lock casing (3) is made of injection-molded synthetic resin. 4. The conductive wire (7) is embedded in a portion of a lock casing (3) made of an injection-molded synthetic resin to form a conductive wire bundling portion (13) extending from a wiring board (14). A door lock according to any one of claims (1) to (3). 5. The lock plate (1), in particular its member retaining zone (15), is embedded as a reinforcement in a lock casing (3) made of synthetic resin injection-molded by injection molding. A door lock according to any one of claims (1) to (4).