JPH0622934Y2 - Conductive connection device - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to a conductive connecting device, and more specifically, to a body earth by attaching an electric component such as an interior light to a painted surface of a conductive plate such as an inner surface of an automobile. The present invention relates to a conductive connecting device that is suitable for application when taking.

[Prior Art] As a conventional technology of this type, a body ground is obtained by forming a hole in a coated surface of a conductive mounting body such as an automobile body and screwing a lead wire with a lug piece or the like.

Also, when installing indoor lights etc. by screwing them to the vehicle body, the periphery of the mounting hole of the plastic mounted object is not always cracked or scraped off by the strong screwing force of the set screw. There are many things that cannot be fully mounted and mounted.

[Problems to be Solved by the Invention] The above-mentioned conventional technique is troublesome in lead wire treatment in a place where it is not visible to people, such as a rabbit corner, a room light such as electrical components in a room, or a door switch. However, many problems occur due to imperfect screwing.

For this reason, there is a thing to prevent the partial damage of the attached object due to the above-mentioned screwing by inserting the reinforcing ring by insert molding along the attachment hole, but since this method requires a means of plastic insert molding, There is a problem that the cost becomes high.

Therefore, it is conceivable to simply press fit the reinforcing ring into the mounting hole or to fit it into the fitting hole. However, the press fitting requires a press machine and the workability is poor, and the fitting ring causes the ring to easily fall off to the outside. There was a problem.

In order to eliminate the above-mentioned problems, the present invention temporarily fixes the reinforcing cylinder to prevent it from falling off by the elasticity of the intermediate portion of the bus bar arranged along the mounting hole, and at the same time, prevents the reinforcing cylinder and the conductor screw from falling off. The purpose is to firmly pinch a wiring material such as a bus bar between and after fixing with screws.

[Means for Solving the Problem] The above-mentioned object of the present invention is to provide an insulating material made of plastic or the like when the narrow width conductive plate disposed on the surface of the insulative mounted body is electrically connected to the conductive mounting body. A narrow conductive plate having a bent portion at the tip of the intermediate piece arranged to face the inner peripheral surface of the mounting hole formed in the attached body is disposed on the surface of the attached body,
In addition, a reinforcing cylinder is inserted into the mounting hole against the elasticity of the intermediate piece, and the surface of the mounted body having the small-width conductive plate is brought into contact with the conductive mounting body so that the hole of the conductive mounting body has the above-mentioned structure. Connecting the outer surface of the bent portion of the small-width conductive plate to the inner peripheral surface of the hole of the conductive mounting body with the conductive screw by tightly screwing the mounted body with the conductive screw inserted through the reinforcing tube. Is achieved in.

[Operation] By inserting the reinforcing cylinder into the mounting hole of the body to be mounted against the elastic force of the intermediate piece, the reinforcing cylinder is firmly fixed in the mounting hole and does not slip out to the outside.

On the other hand, the inner peripheral surface of the hole formed in the conductive mounting body is peeled off the coating at the time of drilling or burring.
The inner peripheral surface of the hole becomes conductive.

Further, when the mounted body is screwed into the hole of the conductive mounting body with the conductor screw inserted into the reinforcing cylinder temporarily fixed in the mounting hole, the reinforcing cylinder is present in the mounting hole of the mounted body. Thus, the peripheral portion of the mounting hole can be firmly screwed onto the coated surface of the conductive mounting body without being scraped off by the screwing force of the conductor screw or damaged such as cracks.

Then, at the time of this screwing, the conductor screw is screwed by pushing the bending portion of the small-width conductive plate against the end face of the reinforcing tube by the screwing force of the conductor screw, and forcibly cutting the bending portion in the thickness direction of the inside surface of the conductor screw head. The conductor screw is screwed into the mounting hole at a right angle to the conductive mounting body.

That is, the bent portion is tightly sandwiched between the inner side of the head of the conductor screw and the end surface of the reinforcing cylinder in a state where almost half of the wall thickness is removed, and the narrow conductive plate is made to pass through the bent portion to form a conductor. Good electrical connection is made at the inner peripheral surface of the hole to the conductive mounting body via the screw.

[Examples] Examples will be described with reference to the drawings.

First, the basic structure of this invention is to install a small-width conductive plate disposed on the surface of an insulative member to be electrically connected to the electrically conductive mounting member, as shown in FIG. A small-width conductive plate 5 made of a copper plate having a bent portion 4 at the tip of an intermediate piece 3 arranged so as to face the inner peripheral surface of the mounting hole 2 formed in the mounted body 1 is attached to the surface of the mounted body 8 Arrange as shown.

Further, as shown in FIG. 3, a reinforcing cylinder 6 made of, for example, metal is inserted into the mounting hole 2 against the elastic force of the intermediate piece 3 as shown in FIGS. 4 and 9.

Further, as shown in FIG. 9, the surface of the mounted body 1 on which the narrow conductive plate is disposed is in contact with the metallic conductive mounting body 7, and as shown in FIG. As shown in FIG. 1, the attached body 1 is tightly screwed with the conductor screw 9 inserted through the reinforcing tube 6 so that the outer surface of the bending portion 4 of the narrow conductive plate 5 is electrically connected with the conductor screw 9. It can be electrically connected to the inner peripheral surface of the hole 8 of the mounting body 7.

Next, the operation of this invention will be described.

By inserting the reinforcing cylinder 6 against the elasticity of the intermediate piece 3 into the mounting hole 2 of the mounted body 1 as shown in FIG. 2 through the states shown in FIG. 7, FIG. 8 and FIG. As shown in FIG. 4, FIG. 6 and FIG. 9, the reinforcing cylinder 6 is temporarily fixed in the mounting hole 2 so as not to slip out to the outside.

On the other hand, as shown in FIG. 9, the inner peripheral surface of the hole 8 formed in the conductive mounting body 7 is peeled off at the time of drilling or burring, so that the inner peripheral surface of the hole 8 is in a conductive state. Becomes

In addition, the tenth piece is placed in the reinforcing tube 6 temporarily fixed in the mounting hole 2.
As shown in the figure, when the mounted body 1 is screwed into the hole 8 of the conductive mounting body 7 with the conductor screw 9 inserted, the reinforcing cylinder 6 is present in the mounting hole 2 of the mounted body 1, and Conductor screw 9 around hole 2
As shown in FIG. 1, the mounted body 1 can be firmly screwed onto the coated surface 7a of the conductive mounting body 7 without being scraped off or damaged by the screwing force.

During this screwing, the bending portion 4 of the narrow conductive plate 5 is pressed against the end surface of the reinforcing tube 6 by the screwing force of the conductor screw 9 while bending the bending portion 4
The conductor screw 9 is screwed into the mounting hole 2 while forcibly shaving it in the thickness direction with the inner surface of the head of the conductor screw 9.
9 is screwed to the conductive mounting body 7 at a right angle as shown in FIG.

That is, as shown in FIG. 1, the bent portion 4 is tightly sandwiched between the inside of the head portion of the conductor screw 9 and the end surface of the reinforcing tube 6 with almost half of the wall thickness removed, The narrow conductive plate 5 is satisfactorily electrically connected to the conductive mounting body 7 through the bending portion 4 and the conductor screw 9 at the inner peripheral surface of the hole 8 as shown in FIG.

The example shown in FIG. 11 shows another embodiment of the basic embodiment shown in FIG. 8, in which the intermediate piece 3 has a longitudinal cross-sectional shape of a loose arc, and the other parts are the same as those of the above-described embodiment. It is the same.

[Advantages of the Invention] Since the present invention is configured as described above, it has the following effects.

First, by simply inserting the reinforcing cylinder 6 in the mounting hole 2 of the mounted body 1 against the elastic force of the intermediate piece 3, the reinforcing cylinder 6 is temporarily temporarily fixed in the mounting hole 2 and does not slip out to the outside. The first effect is that transportation to the post-process work site can be surely executed, and post-processing and mounting can be easily executed.

Further, in the subsequent step, when the mounted body 1 is screwed into the hole 8 of the conductive mounting body 7 with the electric torque driver etc. by the conductor screw 9 inserted in the reinforcing cylinder 6 temporarily fixed in the mounting hole 2. To
Since the reinforcing cylinder 6 is pre-existing in the mounting hole 2 of the mounted body 1, the peripheral portion of the mounting hole 2 is removed by the screwing force of the conductor screw 9 so that the mounted body 1 is electrically conductive without being damaged. Painted surface of attachment 7
It has a second effect that it can be firmly screwed to the 7a, and therefore, even if the screwing operation is performed indiscriminately, the mounted body 1 can be mounted in a beautiful shape without losing its original shape.

During this screwing, the bending portion 4 of the narrow conductive plate 5 is pressed against the end surface of the reinforcing tube 6 by the screwing force of the conductor screw 9 while bending the bending portion 4
The conductor screw 9 is screwed into the mounting hole 2 while forcibly shaving it in the thickness direction with the inner surface of the head of the conductor screw 9.
As a result of 9 being screwed at a right angle to the conductive mounting body 7, there is a third effect that the screwing strength can be realized reasonably and firmly.

That is, the bending portion 4 is tightly sandwiched between the inside of the head portion of the conductor screw 9 and the end surface of the reinforcing tube 6 in a state in which approximately half of the wall thickness is removed, and the narrow conductive plate 5 is There is also a fourth effect that a good electrical connection is made at the inner peripheral surface of the hole 8 to the conductive mounting body 7 through the portion 4 via the conductor screw 9 and therefore a large current connection, for example, a body earth connection is realized even at a low voltage. .

[Brief description of drawings]

Each of the drawings shows an embodiment of the present invention. Fig. 1 is a sectional view of a conductive connecting device, Fig. 2 is a lower perspective view of an attached body, and Figs. 3 and 4 show the attached body. FIG. 5 is a cross sectional plan view of FIG. 2, FIG. 5 is a cross sectional plan view of FIG. 4, FIG. 7, FIG. , FIG. 9 and FIG. 10 are cross-sectional views showing the procedure for attaching the attached body to the conductive attaching body through the small width conductive plate and the reinforcing tube with conductor screws, and FIG. 11 is another embodiment of the small width conductive plate. It is sectional drawing of the to-be-attached body shown and a reinforcement cylinder. 1 …… Mounted body, 6 …… Reinforcement tube 2 …… Mounting hole, 7 …… Conductive mounting body ………… Middle piece, 8 …… Hole 4 …… Bend, 9 …… Conductor screw 5 …… Small conductive Board

Claims (1)

[Scope of utility model registration request] Claim: What is claimed is: 1. A device for mounting a narrow conductive plate disposed on the surface of an insulative body to be mounted so as to be electrically connected to the electrically conductive body, the mounting hole 2 formed in the insulative body 1 made of plastic or the like. A small-width conductive plate 5 having a bending portion 4 at the tip of the intermediate piece 3 arranged so as to face the inner peripheral surface of the intermediate piece 3 is arranged on the surface of the mounted body 1, and the intermediate piece 3 is provided in the mounting hole 2. The reinforcing cylinder 6 is fitted against the elastic force, and the surface of the mounted body 1 on which the narrow conductive plate is disposed is in contact with the conductive mounting body 7 and the hole 8 of the conductive mounting body 7 is provided.
With the conductor screw 9 inserted through the reinforcing tube 6 in the
By tightening 1 tightly, the bent portion 4 of the narrow conductive plate 5
2. A conductive connecting device comprising an outer peripheral surface of the conductive connecting body 9 electrically connected to the inner peripheral surface of the hole 8 of the conductive mounting body 7.