KR100207034B1 - Apparatus for opening and shutting of fuel filler door of an automobile - Google Patents

Abstract

The present invention relates to a fuel filler door opening and closing device of an automobile, and can prevent the risk of fire by preventing the fueling can be carried out in the state of starting the engine, in particular to prevent the fuel filler door to be forcibly opened from the outside Provided is a fuel filler door opening and closing device for an automobile.

The present invention includes: first and second guide rails 10 and 20 fixedly installed in parallel between the outer panel Op and the inner panel Ip, and having guide grooves 11 and 21 formed therein; A guider (30) installed slidably along the first and second guide rails (10,20), and having a first cylinder (40) fixed to a portion adjacent to the four corner portions of the fuel filler door (Fd); An air cylinder 50 fixedly installed at an inner side of the fuel filler door Fd to open and close the rod end; A control valve 60 for reciprocating the piston 51 of the air cylinder 50 by adjusting the injection direction of air supplied into the air cylinder 50; A second cylinder 70 for selectively operating the control valve 60 to reciprocate the piston 51 of the air cylinder 50; It is controlled by the electronic control device 80, is provided on the fuel inlet (F) and the inner panel (Ip) in contact with the detection sensor (s) for determining whether the injection hose injection.

Description

Fuel filler door opener in car

The present invention relates to a fuel filler door of a motor vehicle, and more particularly to a fuel filler door opening and closing device operated by an air cylinder.

In general, automobiles use gasoline or diesel as fuel, and the fuel is supplied to the engine in a state of being stored in a fuel tank attached to the bottom of the body.

Therefore, fuel must be supplied to the engine in a state in which the fuel tank is periodically filled and filled.

As such, a fuel inlet is provided on the side of the body as a factor for supplying fuel in the fuel tank so that the gas source can inject fuel from a gas station.

On the other hand, the fuel inlet provided on the side of the body is kept closed by the fuel filler door assembler to prevent the inflow of foreign matter and other danger from fire, and the release handle assembly inside the vehicle And the fuel filler door assembly are connected via a release cable to open the fuel filler door assembly inside the vehicle or by opening and closing the fuel filler door in a non-locked manner by pushing in and out of the fuel filler door.

4 and 5 show a general non-locking fuel filler door opening and closing device, in which the fuel filler door 1 has a hinge piece 1a provided on its inner surface fixed at one end thereof on the filler housing 2. The other end of the hinge bracket (3) and the hinge pin (4) is coupled to the rotatably hinged, especially between the hinge bracket (3) and the fuel filler door (1) leaf spring extending to be curved at a predetermined curvature Both ends of (5) are rotatably coupled via the auxiliary hinge pin (6).

Therefore, when the fuel filler door 1 is rotated about the hinge engagement portion, when the leaf spring 5 is opened at a predetermined angle as shown by the imaginary line, the direction of its elasticity is reversed, that is, switched to the opening point. As a result, the fuel filler door 1 is fully opened.

However, in the conventional fuel filler door opening and closing device, even when the driver does not turn off the engine, when the gas station is refueling occurs, there is a problem that causes an accident by fire, in particular, the fuel filler door (1) Many problems are inherent, such as damage to gasoline and theft of gasoline.

The present invention has been made to solve such a conventional problem, it is possible to prevent the risk of fire by preventing the fueling can be performed in the state of starting the engine, in particular to prevent the opening of the fuel filler door forcibly from the outside It is an object of the present invention to provide a fuel filler door opening and closing device for a vehicle.

In order to achieve the above object, the fuel filler door opening and closing apparatus for a vehicle according to the present invention is to open and close the fuel filler door which is installed to form the same plane on the outer panel of the rear body of the vehicle. First and second guide rails fixedly installed in parallel between the inner panel and the inner panel, the guide grooves being formed on an inner surface thereof; A guider slidably installed along the first and second guide rails and having a first cylinder fixed to move the fuel filler door inward and outward at a portion adjacent to the four corners of the fuel filler door; An air cylinder having a rod end fixed to an inner side of the fuel filler door to open and close the fuel filler door; A control valve for adjusting the injection direction of the air supplied into the air cylinder to reciprocate the piston of the air cylinder; A second cylinder for selectively operating the control valve to reciprocate the piston of the air cylinder; And a sensing sensor controlled by an electronic controller and provided on an inner panel adjacent to the fuel inlet to determine whether an injection hose is injected.

1 is a block diagram conceptually showing a fuel filler door opening and closing apparatus according to the present invention.

2 is a cross-sectional view taken along the line A-A of FIG.

3 is a block diagram for explaining an operating state of the present invention.

4 and 5 are a perspective view and a cross-sectional view of a conventional fuel filler door opening and closing device.

* Explanation of symbols for main parts of the drawings

10, 20: 1st, 2nd guide rail 11, 21: guide groove

30: guider 40, 70: 1st, 2nd cylinder

41, 71: Electromagnet 42, 72, 51: Piston

50: air cylinder 60: control valve

80: ECU 90, 90 ': 1st, 2nd drive part

Ip: inner panel Op: outer panel

F: fuel inlet S: spring

s: Sensor

1 is a block diagram conceptually showing another fuel filler door opening and closing device according to the present invention, FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1, and FIG. 3 is a block diagram for explaining an operating state.

As shown in the present invention, the fuel filler door (Fd) is installed to be coplanar with the outer panel (Op), the fuel inlet (F) is inserted into the main fuel hose (not shown) on the inner panel (Ip) On the inner panel Ip adjacent to the fuel injection port F, a sensing sensor s for determining whether or not the fuel oil hose is inserted is provided.

Meanwhile, between the outer panel Op and the inner panel Ip of the rear body adjacent to the fuel filler door Fd, the guide rails 10 and 20 having guide grooves 11 and 21 formed on their inner surfaces are parallel to each other. Array is installed.

The guide grooves 11 and 21 of the guide rails 10 and 20 are slidably installed through the guide rollers 31, in particular, on one side of each guider 30, that is, the fuel filler door The first cylinder 40 is fixedly installed at a position corresponding to the four corner portions of the Fd.

The first cylinder 40 plays a role of adjusting the step between the fuel filler door Fd and the outer panel Op, and an electromagnet 41 is built in the inner surface thereof, in particular, by the spring S. The piston 41 is elastically supported toward the fuel filler door Fd and its rod end is fixed to the corner portion of the fuel filler door Fd.

Meanwhile, an air cylinder 50 into which air of a predetermined pressure is injected from the air tank At is positioned at a position adjacent to the fuel filler door Fd and the inner side described above, and the piston 51 of the air cylinder 50 is located. The rod is engaged with the inner side of the fuel filler door Fd. That is, the air cylinder 50 performs the opening / closing operation of the fuel filler door Fd substantially.

In this case, a control valve 60 is provided to reciprocate the piston 51 of the air cylinder 50, and the control valve 60 supplies air to be converted into the air cylinder 50 by the second cylinder 70. Will be injected.

The structure of the second cylinder 70 described above has the same structure as that of the first cylinder 40, that is, the electromagnet 71 is built in the inner surface thereof, and is elastically supported by the spring S. The rod end has a piston 72 inserted into the control valve 60.

On the other hand, the electromagnets 41 and 71 located in the above-described first cylinder 40 and the second cylinder 70 are controlled by an electronic controller (hereinafter, abbreviated as ECU) 80, and drive element ( Power is selectively applied by the first and second drive units 90 and 90 'having 91 and 91' and relays 92 and 92 '.

Meanwhile, the ECU 80 is connected to the start switch 100, the fuel filler door opening switch 110, and the above-described detection sensor s as shown in FIG. 3.

Referring to the operating state of the present invention configured as described above are as follows.

In order to first open the fuel filler door Fd to inject fuel, when the driver turns off the start switch 100 and simultaneously turns on the fuel filler door opening switch 110, the ECU 80 The two signals are input to supply power to the electromagnet 41 in the first cylinder 40 through the first driver 90.

As the electric power is applied to the electromagnet 41, the piston 42 inside the first cylinder 40 is transferred inward, and at the same time, the fuel filler door Fd coupled to the rod of the piston 42 is transferred inward. As a result, the fuel filler door Fd has a predetermined step with the outer panel Op.

As described above, the ECU 80 drives the second driving unit 90 'while the fuel filler door Fd is transferred to the inside, thereby controlling power by applying power to the electromagnet 71 in the second cylinder 70. By introducing air into the air cylinder 50 through the valve 60, the piston 51 pulls the fuel filler door Fd. Therefore, in the fuel filler door Fd, the guider 30 coupled with the first cylinder 40 slides along the guide rails 10 and 20 so that the space between the outer panel Op and the inner panel Ip is increased. The fuel injection port (F) is exposed to the outside to thereby the fuel supply source is in a state capable of oiling through the fuel hose.

In this way, when the fuel source is refueling through the fuel hose, the detection sensor s provided on the inner panel Ip adjacent to the fuel inlet F detects the injection and release of the fuel hose, and at the same time The ECU 80 connected to the sensor s detects this and cuts off the power applied to the electromagnet 71 of the second cylinder 70 through the second driving unit 90 ′. By returning to the initial position by the spring S, the air inflow direction into the air cylinder 50 through the control valve 60 to which the rod of this piston 72 is coupled is switched.

Accordingly, the fuel filler door Fd and the guider 30 are returned to the initial position at the same time as the piston 51 of the air cylinder 50 is downward.

In this way, the fuel filler door Fd returns to the initial position, and the ECU 80 detects this and simultaneously cuts off the power applied to the electromagnet 41 of the first cylinder 40 through the first driving unit 90. do.

Accordingly, the piston 42 of the first cylinder 40 is transferred to the outer panel Op by the elastic force of the spring S, and as a result, the fuel filler door Fd is positioned to be coplanar with the outer panel Op. will be. That is, it is to maintain a completely closed state.

On the other hand, the present invention described above, when the open structure of the fuel filler door (Fd) has a transport structure that slides left and right, it is preferable to be applied to a car or a large bus, etc. It would be desirable to apply the van to the relatively rear side.

According to the fuel filler door opening and closing device of the vehicle according to the present invention as described above, since the fuel filler door that is opened and closed through the ECU and the plurality of cylinders is not opened in the state that the driver is not turned off, it may occur in the fueling process The risk of fire can be prevented in advance, and in particular, the fuel filler door is coplanar with the outer panel, so that the forced opening cannot be performed, thereby preventing theft of fuel in advance.

Therefore, it is possible to improve the merchandise of the car employing it, there is an advantage that can further satisfy the consumer satisfaction.

Claims (2)

In order to open and close the fuel filler door installed in the same plane on the outer panel of the rear body of the vehicle, fixedly installed in parallel with each other between the outer panel and the inner panel, a guide groove formed on the inner surface 1,2 guide rails; A guider slidably installed along the first and second guide rails and having a first cylinder fixed to move the fuel filler door inward and outward at a portion adjacent to the four corners of the fuel filler door; An air cylinder having a rod end fixed to an inner side of the fuel filler door to open and close the fuel filler door; A control valve for adjusting the injection direction of the air supplied into the air cylinder to reciprocate the piston of the air cylinder; A second cylinder for selectively operating the control valve to reciprocate the piston of the air cylinder; A fuel filler door opening and closing device for a vehicle, comprising: a sensor configured to be controlled by an electronic controller and disposed on an inner panel adjacent to the fuel inlet to determine whether an injection hose is injected. The first and second cylinders of claim 1, wherein each of the first and second cylinders has an electromagnet positioned on the inner side, a piston transported by the electromagnet, and a spring for elastically supporting the piston. A fuel filler door opening and closing device for a vehicle, which is controlled by an electronic controller and selectively powered by first and second driving units having a driving element and a relay.

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