JPH076625Y2 - 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 requires lead wire treatment in an invisible place such as a rabbit corner, an indoor light such as an electric component in a room, or a door switch in an invisible place. However, this is troublesome, and many problems occur due to imperfect screwing.

For this reason, there is also a thing to prevent partial damage of the attached object due to the screwing by inserting the reinforcing ring by insert molding along the mounting hole, but this method requires a means of plastic insert molding, so the molding cost There is a problem that becomes higher.

Therefore, it is conceivable to simply press fit the reinforcing ring into the above-mentioned mounting hole or to fit it into the fitting hole, but 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 partially forms a temporary fixing bullet in the mounting hole to prevent the reinforcing cylinder from falling off, and to prevent a bus bar or the like between the reinforcing cylinder and the conductor screw. The purpose is to firmly hold the wiring material in the state that it is firmly inserted after screwing.

[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 temporary fixing bullet that partially protrudes on the inner peripheral surface of the mounting hole formed in the mounting body along the relief portion, and the tip is projected to the mounting body near the mounting hole. A conductive member having a penetrating bent piece is arranged on the surface of the mounted body, and a reinforcing cylinder is inserted into the mounting hole against the elastic force of the temporary fixing bullet, and the conductive body of the mounted body is electrically conductive. The member mounting surface is brought into contact with the conductive mounting body, and the mounted body is tightly screwed into the hole of the conductive mounting body by the conductor screw inserted through the reinforcing cylinder. This is achieved by electrically connecting the tip of the conductive mounting body to the inner peripheral surface of the hole with the conductor screw. It

[Operation] By inserting the reinforcing cylinder into the mounting hole of the mounted body against the elastic force of the temporary fixing bullet piece, the reinforcing cylinder is securely temporarily 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 into the mounting hole while forcibly scraping the protruding portion of the bent piece of the conductive member which has been previously inserted into the mounted body by the screwing force of the conductor screw on the inner surface of the head thereof. Therefore, the conductor screw is screwed at a right angle to the conductive mounting body.

That is, the above-mentioned protruding portion is the result that it is tightly sandwiched between the inside of the head portion of the conductor screw and the end surface of the reinforcing cylinder in a state in which most of the protruding portion is forcibly shaved by the inner surface of the screw head and deleted. Is satisfactorily connected to the conductive mounting body at the inner peripheral surface of the hole via the conductor screw through the tip of the bent piece.

[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. For example, a semicircular partially projecting temporary fixing bullet 3 is formed on the inner peripheral surface of the mounting hole 2 formed in the mounted body 1 along the relief portion 3a.

A conductive member 5 made of a copper plate having a bent piece 4 in the through hole 1a along the inner peripheral surface of the mounting hole 2 is shown in the buried groove 1b of the mounted body 1 in FIG. It is arranged as follows.

In addition, as shown in FIG.
The reinforcing cylinder 6 made of, for example, metal is inserted as shown in FIG.

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

Next, the operation of this invention will be described.

The reinforcing cylinder 6 is inserted into the mounting hole 2 of the mounted body 1 as shown in FIG. 2 through the state shown in FIG. As shown in FIG. 4 and FIG. 5, it is temporarily fixed in the mounting hole 2 so that it does not slip out to the outside.

On the other hand, as shown in FIG. 6, the inner peripheral surface of the hole 8 preformed in the conductive mounting body 7 is stripped off during drilling or burring, and as a result, inside the hole 8 The peripheral surface is in a conductive state.

In addition, in the reinforcing cylinder 6 temporarily fixed in the mounting hole 2,
When the mounted body 1 is screwed into the hole 8 of the conductive mounting body 7 as shown in FIG. 1 by the conductor screw 9 inserted as shown in the figure, the reinforcing tube 6 is inserted into the mounting hole 2 of the mounted body 1. Due to the presence of the conductor, the peripheral portion of the mounting hole 2 is not scraped off or damaged by the screwing force of the conductor screw 9, and the mounted body 1 is attached to the painted surface 7a of the conductive mounting body 7 as shown in FIG. Can be firmly screwed.

At the time of this screwing, the projecting portion 4a of the bent piece 4 of the conductive member 5 which is inserted into the through hole 1a of the preliminarily mounted body 1 (see FIG. 3,
(Refer to FIG. 6) The conductor screw 9 is screwed into the mounting hole 2 while forcing the inner surface of the head by the screwing force of the conductor screw 9 so that the conductor screw 9 is shown on the conductive mounting body 7 in FIG. It is screwed at a right angle.

That is, as shown in FIG.
Most of the portion 4a is forcibly cut and removed by the inner surface of the screw head, and is removed tightly between the inner side of the head of the conductor screw 9 and the end surface of the reinforcing tube 6, and the conductive member 5 is As shown in FIG. 1, the inner peripheral surface of the hole 8 is satisfactorily electrically connected to the conductive mounting body 7 through the bent piece 4 and the conductor screw 9.

The example shown in FIG. 7 shows another example of the basic example shown in FIG. 4, in which the conductive member 5 is formed in the shape of a round bar, and the other parts are the same as the above-described example.

The example shown in FIG. 8 shows another embodiment of the basic embodiment shown in FIGS. 1 to 6, in which the provisionally fixed bullet 3 and the relief portion 3a are spaced 120 ° apart from each other on the mounted body 1. In this embodiment, three parts are provided, and other parts are the same as the above-mentioned embodiment.

Further, the examples shown in FIG. 9 to FIG. 12 show further other examples of the basic embodiment shown in FIG. 1 to FIG. 7, respectively, in which the bending piece 4 is provided in contact with the reinforcing tube 6. It is a thing.

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

First, the reinforcing cylinder 6 is temporarily fixed in the mounting hole 2 of the mounted body 1
The reinforcement cylinder 6 is temporarily fixed in the mounting hole 2 simply by inserting it against the resilience and does not slip out to the outside, so it can be reliably transported to the post-process work site, and post-processing and mounting. Has the first effect that it 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 screwdriver or the like by the conductor screw 9 which is inserted into the reinforcing cylinder 6 which is temporarily fixed in the mounting hole 2. In addition, since the reinforcing cylinder 6 exists in advance 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 and is not damaged. Conductive mounting 7
It has a second effect that it can be firmly screwed onto the coated surface 7a, etc., so that it can be mounted in a beautiful shape without damaging the original shape of the mounted body 1 even if the screwing work is performed in a random manner.

During this screwing, the bending force 4 of the conductor screw 9 pushes the bent piece 4 of the conductive member 5 against the end face of the reinforcing cylinder 6 and the inner peripheral surface of the hole 1a, and the protruding portion 4a is attached to the inner face of the head of the conductor screw 9. Since the conductor screw 9 is screwed into the mounting hole 2 while being forcibly cut, the conductor screw 9 is 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 bent piece 4 is tightly sandwiched between the inside of the head of the conductor screw 9 and the surface of the conductive mounting body 7 in a state in which most of the protruding portion 4a of the bent piece 4 is removed by forcibly cutting the inner surface of the screw head. As a result, the conductive member 5 is satisfactorily conductively connected to the conductive mounting body 7 through the bent piece 4 and the conductor screw 9 at the inner peripheral surface of the hole 8, and therefore, even for low voltage, large current, for example, body ground. There is also a fourth effect that a connection part can be realized.

[Brief description of drawings]

Each of the drawings shows one 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 are the attached bodies, respectively. A small-diameter conductive plate and a reinforcing tube are fitted into the lower perspective view with a partial cross section,
FIG. 5 is a cross-sectional plan view of FIG. 4, FIG. 6 is a cross-sectional view showing a state in which the body to be mounted is being attached to the conductor mounting body through a small-width conductive plate and a reinforcing tube with conductor screws, and FIG. 4 is a lower perspective view showing another embodiment of that shown in FIG. 4, FIG. 8 is a cross-sectional plan view showing another embodiment of that shown in FIG. 5, and FIG. 9 is another embodiment of that shown in FIG. Sectional drawing shown in FIG. 10, FIG. 10 is a partial perspective lower perspective view showing another embodiment of that shown in FIG. 4, and FIG. 11 is a cross-sectional plan view showing another embodiment of that shown in FIG. FIG. 12 is a lower perspective view, partly in section, showing another embodiment of that shown in FIG. 1 ... Attached body, 5 ... Conductive member 2 ... Mounting hole, 6 ... Reinforcing cylinder 3 ... Temporary fixing bullet piece, 7 ... Conductive mounting body 3a ... Relief part, 8 ... Hole 4 ... Bent piece, 9 ... Conductor screw 4a ... Projection

Claims (1)

[Scope of utility model registration request] 1. A device for mounting a narrow conductive plate disposed on the surface of an insulative mounted body so as to be electrically connected to the conductive mounting body, wherein the mounting hole 2 is formed in the insulative mounted body 1 made of plastic or the like. A temporary fixing bullet piece 3 that partially projects on the inner peripheral surface of is formed along the relief portion 3a, and a bending piece 4 that penetrates the mounted body 1 near the mounting hole 2 with its tip protruding. The conductive member 5 having the above is disposed on the surface of the mounted body 1, and the reinforcing cylinder 6 is provided in the mounting hole 2 against the elastic force of the temporary fixing bullet piece 3.
And the conductive member mounting surface of the mounted body 1 is in contact with the conductive mounting body 7 and is mounted by the conductor screw 9 inserted into the hole 8 of the conductive mounting body 7 through the reinforcing cylinder 6. Body 1
A conductive connection device in which the tip of the bent piece 4 of the conductive member 5 is conductively connected to the inner peripheral surface of the hole 8 of the conductive mounting body 7 by the conductive screw 9 by tightly screwing.