JPH0517397B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present description describes a plug-in coupling mechanism for a power distributor of an internal combustion engine, in which a plug-in receptacle made of insulating material is connected until a stop of the plug-in receptacle abuts the casing wall of the power distributor. It is inserted into an opening in the casing wall of the power distributor, and the insertion receiving part has two grooves whose axes are parallel to each other, and a two-armed fork-shaped leaf spring is fitted into the grooves. Starting from the type that is supported on the inner surface of the casing wall. In known coupling mechanisms of this type, the leaf springs cannot withstand extreme loads;
Therefore, overloading of the spring is unavoidable when installing the corresponding plug into the plug receptacle, and in some cases, the thickness of the thin spring plate of the leaf spring must be made relatively large to prevent strong vibrations from the power distribution device. It was found that it was necessary to obtain sufficient holding force even when

SUMMARY OF THE INVENTION The object of the invention is to improve a plug-in coupling for a power distribution device of an internal combustion engine, so that the plug-in coupling can be manufactured inexpensively, can adequately take extreme loads, and is suitable for plugging in leaf springs. Therefore, the casing wall of the power distributor should not be damaged. In order to achieve the above object, in the structure of the present invention, the leaf spring is formed by folding an integral spring thin plate into two layers, the folding part of the leaf spring is configured as a sleeve, and both of the leaf springs are folded into two layers. The insertion end piece is configured in an arc shape.

According to the above structure of the present invention, the leaf spring is made up of an integral spring thin plate folded into two layers, and the folded part of the leaf spring is configured as a sleeve, so that the shape stability of the leaf spring is enhanced and extremely In addition, due to the arc-shaped configuration of the insertion end piece of the leaf spring, the leaf spring can be easily inserted without damaging the casing wall of the power distribution device.

Embodiments of the invention will now be explained in detail with reference to the drawings: The casing wall 10 of the power distributor shown in FIG. 1 for an internal combustion engine has a support plate 11 attached to the casing wall and a signal generator. (not shown). a plug-in receptacle 1 formed of an insulating material and forming part of a plug-in coupling mechanism;
3 is inserted into an opening 15 in the casing wall 10 and contacts the outer surface of the casing wall 10 with a collar formed as a stopper 14. The section of the plug-in receptacle 13 that extends into the housing interior 17 has two lateral grooves 16 parallel to the distributor axis 18 (see FIG. 2). Three conductors 19 with each knife contact 20 lead to stator 12 .

The two-armed leaf spring 21 in FIG. The two-armed fork-shaped leaf spring 21 is formed from an integral spring thin plate,
It is folded into two layers, the folding point being designed as a sleeve 23. Leaf spring 2
Both plug-in end pieces 24 of 1 are arcuate (rounded), and from each plug-in end piece there is a plane of symmetry 22.
An additional portion 25 with a bending axis perpendicular to the bending axis protrudes. The inner diameter between the two additional portions 25 is the same as the distance between the groove bottoms of the two grooves, or is slightly larger than the distance between the groove bottoms. The outer layer 26 of the leaf spring 21 is shorter than the inner layer 27.

The plug-in end piece 24 shown in FIG. , and is curved to form an arcuate portion 29.

The leaf spring 21 is inserted into both grooves 16 of the plug-in receptacle 13 in the direction of the arrow 28 (see FIG. 1);
In this case, the ends of the leaf spring 21 are supported on the housing wall 10, and the plug-in receptacle 13 is fixed to the housing wall 10 by bringing the central section into contact with one side wall of the groove.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view of a plug-in coupling mechanism attached to a power distribution device, FIG. 2 is a perspective view of a leaf spring, and FIG. FIG. 3 is an enlarged perspective view of a leaf spring section of FIG. 10...Casing wall, 11...Support plate, 12...Stator, 13...Plug-in receiving part, 1
4...Stopper, 15...Opening, 16...Groove, 1
7...Inside of casing, 18...Distributor axis, 1
9... Conductor wire, 20... Knife contact, 21... Leaf spring, 22... Symmetry plane, 23... Sleeve, 24...
...Plug-in end piece, 25...Additional part, 26 and 27...
...layer, 28...arrow, 29...location.

Claims (1)

[Scope of Claims] 1. A plug-in coupling mechanism for a power distribution device of an internal combustion engine, in which a plug-in receptacle made of insulating material connects the power distribution device until a stop of the plug-in receptacle abuts against a casing wall of the power distribution device. The insertion receptacle is inserted into an opening in the casing wall, and the insertion receptacle has two grooves whose axes are parallel to each other, and a two-armed fork-shaped leaf spring is inserted into the grooves. In the form that is supported by the inner side of
A leaf spring 12 formed from a one-piece spring sheet is folded into two layers, the folding point of the leaf spring 21 is designed as a sleeve 23, and the two plug-in ends 24 of the leaf spring 21 are constructed in the shape of an arc. A plug-in coupling mechanism for a power distributor of an internal combustion engine, characterized in that: 2. Plug-in coupling mechanism according to claim 1, in which the leaf spring 21 is arranged symmetrically with respect to a plane of symmetry 22 containing the distributor axis 18. 3 Each insertion end piece 24 of the leaf spring 21 has a symmetry plane 22
has an appended part 25 bent around a bending axis perpendicular to the folding axis, and the inner width between both appended parts is the same as the distance between the groove bottoms of both grooves of the insertion receiving part; Or the distance between the groove bottoms is slightly larger than the distance between the groove bottoms.
Plug-in coupling mechanism as described in section. 4. Plug-in coupling mechanism according to any one of claims 1 to 3, in which the outer layer 26 of the leaf spring 21 is shorter than the inner layer 27.