JP2012212633A - Emergency protection device - Google Patents

Abstract

An emergency protection device capable of maintaining a reliable conduction state and a reliable interruption state with a small number of parts and a simple structure.
A body 1 having a hole 4, a conductor 5 provided with a hole 4 passing through the body 1 and having an easily breakable portion at a portion where the hole 4 is passed, and a body 1 corresponding to the hole 4 are provided. The pusher 2 is pressed, and the pusher 2 is pressed to break the conductor 5 at the easily breakable portion and enter the hole 4 so as to be in a cut-off state.
[Selection] Figure 1

Description

  The present invention relates to an emergency protection device having a conductive structure that is not re-conductive after a single interruption.

  2. Description of the Related Art Conventionally, for example, vehicles such as automobiles have been provided with an emergency protection device for ensuring safety at the time of collision (for example, prevention of electric shock due to electric leakage). In this emergency protection device, the contact is always in a state where the conductor is connected to the conductor, and the pusher pushed by the impact at the time of the collision is separated by separating the contact from the conductor. The contact is prevented from returning and the cut-off state is maintained, that is, it is not re-conducted (see, for example, Patent Document 1).

JP 2003-303527 A

  In the case of the conventional one, a plurality of parts are used to keep the contact in contact with the conductor (conduction state) at all times, and to separate the contact from the conductor in the event of a collision and further maintain the contact state (blocking state). And a plurality of springs are required, and a complicated locking structure is required, resulting in a high cost. Also, maintaining the contact away from the conductor is a spring (tensile coil spring) extended from the contracted state and an elastic locking structure, and there is a problem that lack of certainty of maintenance is lacking. It was.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances. Accordingly, an object of the present invention is to provide an emergency protection device that can maintain a reliable conduction state and a reliable interruption state with a small number of parts and a simple structure. .

  In order to achieve the above object, an emergency protection device of the present invention includes a body having a hole, a conductor provided with the hole passing through the body, and an easily breakable portion at a portion passing the hole, A pusher provided corresponding to the hole in the body, and when the pusher is pressed, the conductor is broken at the breakable portion and enters the hole of the body, thereby providing a blocking state. It is characterized by becoming.

  According to the above means, in addition to the body and the conductor, only the pusher is required, and it is possible to reliably maintain the conductive and conductive states of the conductor. In particular, the maintenance of the cut-off state is achieved by the pusher being pressed to break the conductor at the easily breakable portion and entering the hole of the body, and can be reliably maintained with a simpler structure. .

The expanded sectional view of the principal part in alignment with the II line of FIG. 2 which shows one Example of this invention Overall perspective view Partial enlarged perspective view of conductor Enlarged external perspective view of main parts Exploded perspective view of mounting structure Enlarged sectional view of the main part in the operating state

Hereinafter, an example (one embodiment) of the present invention will be described with reference to the drawings.
First, FIG. 2 shows the whole emergency protection device for ensuring safety in the event of a vehicle collision such as an automobile. This emergency protective device has a body 1 made of an electrical insulating material such as a square pillar as a base, and has pushers 2 at three positions on the left and right and in the middle of the front, and mounting arms at both left and right ends. Part 3. In this case, the mounting arm 3 is horizontal and the body 1 is obliquely upward.

  Holes 4 shown in FIG. 1 are formed at three locations where the pusher 2 of the body 1 is located (FIG. 1 shows one of them as a representative). The hole 4 penetrates the body 1 in the front-rear direction (diagonal), and a conductor 5 is provided on the front surface of the body 1 across the hole 4.

  As shown in FIG. 2, the conductor 5 has a belt-like shape extending over the entire length of the left and right sides of the body 1, and the portion where the hole 4 is passed is smaller than the hole 4 as shown in FIGS. 3 and 4. The ring-shaped part 5 a is concentric with the hole 4. The ring-shaped portion 5a and the portions on both sides of the ring-shaped portion 5a are connected to each other by an easily breakable portion 5b formed narrowly by V-shaped notch-shaped portions. The ring-shaped portion 5a is connected to the easily breakable portion 5b. It faces hole 4.

  The pusher 2 is provided in correspondence with the hole 4. As shown in FIG. 1, the ring-shaped part 5 a of the conductor 5 is inserted and the front edge of the hole 4 is disposed at, for example, two places on the upper and lower sides. A bullet shape in which each of the short and narrow arms 2a are connected to each other and formed integrally with the body 1, and the front portion 2b projects forward from the hole 4 and the rear portion 2c is located in the hole 4. It is made.

  Both ends of the conductor 5 extend to the mounting arm 3 of the body 1 as shown in FIG. 2, are located on the back surface of the mounting arm 3 as shown in FIG. A ring-shaped terminal portion 5c that matches the three mounting holes 3a is formed. FIG. 5 also shows the device mounting portion 6 and the wiring board 7, and the mounting portion having the mounting hole 7 a of the wiring board 7 on the device mounting portion 6 and the ring-shaped connection land 8 matching this. 7b is mounted, the mounting arm portion 3 of the body 1 is mounted thereon, and the screw 9 is moved from the mounting hole 3a of the body 1 (mounting arm portion 3) to the mounting hole 7a of the wiring board 7 (mounting portion 7b). By screwing into the hole 6a of the mounting portion 6, the body 1 and the wiring board 7 are fastened together with screws 9, and the electrical connection between the terminal portion 5c of the conductor 5 and the connection land 8 of the wiring board 7 is performed. Like to do.

Next, the operation of the emergency protection device having the above configuration will be described.
Normally, as described above, the front portion 2b of the pusher 2 formed integrally with the body 1 by inserting the ring-shaped portion 5a of the conductor 5 protrudes forward from the hole 4, and the conductor 5 is not broken. Is in a conductive state.

  From this state, when the vehicle collides or is collided, as shown by the arrow in FIG. 6, the pusher 2 is pushed forward from the front, and the conductor 5 is broken at the breakable portion 5b. In addition, the arm portion 2a itself breaks into the hole 4 by being easily broken, and the broken end portion of the arm portion 2a is locked to the inner surface of the hole 4 and remains in the hole 4. Thereby, the conductor 5 is kept interrupted, and safety at the time of collision is ensured (for example, prevention of electric shock due to electric leakage).

  As described above, according to the emergency protective device having the above-described configuration, the conductor 5 can be maintained in a conductive state and a cut-off state only by requiring the pusher 2 in addition to the body 1 and the conductor 5. In particular, the maintenance of the cut-off state is achieved by the pusher 2 being pressed to break the conductor at the easily breakable portion and entering into the hole 4 of the body 1. Can be maintained.

It should be noted that the present invention can be similarly applied to an emergency protection device other than a safety emergency protection device for a vehicle such as an automobile.
In addition, the present invention is not limited only to the embodiments described above and shown in the drawings, and in particular, the specific shapes and the like of each part can be appropriately changed and implemented without departing from the scope of the invention.

  In the drawings, 1 is a body, 2 is a pusher, 4 is a hole, 5 is a conductor, and 5b is a breakable part.

Claims (1)

A body having a hole;
The conductor is provided across the hole, and a conductor having an easily breakable portion in the part across the hole;
A pusher provided in the body corresponding to the hole;
The emergency protective device according to claim 1, wherein the pusher is pressed to break the conductor at the easily breakable portion and enter the hole of the body, thereby entering a cut-off state.

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