JPH092596A - Display device - Google Patents

Abstract

(57) [Abstract] [Object] The present invention provides a display device configured to adjust the angle of a refueling amount indicator and the amount of light emission so that the refueling amount display can be easily seen from the driver's seat of a vehicle to be refueled. With the goal. [Structure] The suspension type oil supply device performs oil supply by lowering an oil supply nozzle 6 from a delivery unit 4 at a height 3 of a gas supply station.
The amount of refueling supplied to the vehicle 17 is displayed on the refueling amount indicator 19a of the display device 19 provided at a high place. The refueling amount indicator 19a is provided with a light emitting element that emits light in the stopping direction of the vehicle 17, a light receiving element that receives the light reflected by the windshield 17a of the vehicle 17, and a light intensity sensor that detects the ambient brightness. Has been. The control device 18 has a display position adjusting program 1 for rotating the refueling amount display 19a so as to face the windshield 17a of the vehicle 17.
8A and a display light emission amount control program 18B for adjusting the light emission amount of the oil supply amount indicator 19a according to the ambient brightness are input.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device, and more particularly to a display device provided in a high place of a gas station so that the display of the amount of oil supplied can be easily seen from the driver's seat of a vehicle to be refueled.

[0002]

2. Description of the Related Art In a gas station or the like, an oil supply device having an oil supply system for each oil supply type is installed. In the case of a suspension type refueling device in which a delivery unit containing a refueling hose is installed on the ceiling of a gas station, the delivery unit for each oil type is suspended from the ceiling at a predetermined interval, and A display device for displaying the amount of refueling for each delivery unit is provided at a high place in the refueling station.

This type of display device displays the amount of fuel supplied to a fuel tank of a vehicle by means of a plasma display or the like which causes each element of 7 segments to emit light. Also,
The display device is provided at a position where it can be easily seen from the vehicle during refueling, that is, at a high place of the gas station such as a ceiling or a wall surface.

[0004]

However, in the display device of the suspension type refueling device, the display device is provided in a fixed position at a high place of the gas station, so that, for example, the vehicle is a delivery unit. When the vehicle is stopped at a position deviated from the stop position for refueling specified below and receives refueling, there is a problem that the amount of refueling displayed on the display device from the driver's seat becomes difficult to see.

Further, the conventional display device displays the numerical value of the refueling amount with a constant light emission amount irrespective of the change in the ambient brightness, and therefore, for example, the time of the day such as morning, noon, and night, or the sunny day, cloudy weather, and rainy weather. There is a problem that the amount of refueling displayed on the display device may be difficult to see depending on the weather of the day.

Therefore, an object of the present invention is to provide a display device that solves the above problems.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a display device for displaying the amount of fuel refueled in a fuel tank of a vehicle by means of light emission, and a rotating mechanism for rotating a display section for displaying the amount of refueling, and the vehicle. A position detecting mechanism for detecting the position of the glass, and a light intensity sensor for detecting the brightness around the display section,
The rotation mechanism is operated so that the display unit faces the direction of the glass of the vehicle detected by the position detection mechanism, and the light emission amount of the display unit is changed according to the brightness detected by the light intensity sensor. And a control means for adjusting.

[0008]

According to the present invention, the rotating mechanism is operated so that the display unit faces the position direction of the glass of the vehicle detected by the position detection mechanism, and the brightness around the display unit detected by the light intensity sensor. Since the light emission amount of the display unit is adjusted in accordance with the above, the amount of refueling displayed on the display unit can be easily seen.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a suspension type oil supply device to which an embodiment of the display device of the present invention is applied. The suspension type refueling device 1 is installed in a building (office) 2 built on the site of a gas station and a high place 3 composed of a ceiling, a beam, a canopy and the like provided above the building 2.

The suspension type refueling device 1 has a structure generally including a delivery unit 4 installed at the above-mentioned high place 3, a refueling hose 5 fed from the delivery unit 4, and a refueling nozzle 6 connected to the refueling hose 5. Has been done. In the case of the present embodiment, a single suspension type weighing machine in which only one refueling hose 5 having a refueling nozzle 6 at the tip of the delivery unit 4 is suspended is arranged at the high place 3.

In the wall 2a of the building 2 and in the high place 3,
A liquid supply pipe 7 for supplying an oil liquid to the oil supply hose 5 and the oil supply nozzle 6 is provided. One end of this liquid supply pipe 7 is connected to the inside of the delivery unit 4, and the other end is connected to an underground tank (not shown) installed underground in the site 1. Then, an oil supply pump 9 driven by a pump motor 8 and a flow meter 10 for measuring the oil supply amount are provided in the middle of the liquid supply pipe 7 arranged in the wall 2a of the building 2, and the flow meter 10 has a flow rate. A flow rate pulse transmitter 11 for transmitting a flow rate pulse signal proportional to is attached. The pump motor 8 and the flow rate pulse transmitter 11 are connected to a control device (control means) 18 provided in the building 2.

The delivery unit 4 installed at a high place 3 includes a hose reel 12 that is rotatably mounted, a hose lifting motor 14 that rotates the hose reel 12 forward and backward through a chain 13, and a fuel supply. The elevating mechanism 16 includes a position detector 15 that detects the rotational position of the hose reel 12 according to the elevating position of the nozzle 6. One end of a liquid supply pipe 7 is rotatably connected to the center of the hose reel 12, and an oil supply hose 5 is wound around the outer periphery of the hose reel 12.

The base end of the refueling hose 5 is provided with a liquid delivery pipe 7
And a fueling nozzle 6 is attached to the tip of the fueling hose 5 fed from the hose reel 12. The position detector 15 is provided in the delivery unit 4.
Is a storage position detection switch for detecting that the refueling nozzle 6 is located at the upper end position (storage position) C in the vicinity of the delivery unit 4 in response to the rotation of the motor 14 or the hose reel 12, which is about 1.8 m from the ground. A standby position detection switch for detecting that the vehicle is located at the standby position B, and a refueling position detection switch (both not shown) for detecting that the vehicle 17 is located at the refueling position A, which is a position suitable for refueling the vehicle 17, are built-in. There is. Further, each switch of the position detector 15 and the motor 14 are connected to a control device 18 provided in the building 2, respectively.

Reference numeral 19 denotes a display device, which is a refueling amount indicator 19a (in FIG. 1, showing a refueling amount of the flow rate measured by the flow meter 10 when refueling the fuel tank of the vehicle 17 from the refueling nozzle 6). (Indicated by a broken line). The display device 19 is supported by, for example, a support column 19b protruding from a high place on the wall surface 2a of the building 2, and is provided at a position where it is easily seen from the driver's seat of the vehicle 17.

As the refueling amount indicator (display section) 19a,
A display such as a plasma display that emits light from each of the 7-segment elements is used. And the refueling amount indicator 19a is
It is connected to the flow rate pulse transmitter 11 via the control device 18, and is configured to display the amount of oil supply calculated based on the flow rate pulse signal from the flow rate pulse transmitter 11.

Further, a hand switch box 20 is provided between the refueling hose 5 and the refueling nozzle 6, and a hand raising switch 21 and a hand lowering switch 22 for raising and lowering the refueling hose 5 are arranged in the hand switching box 20. It is set up. The hand raising switch 21 and the hand lowering switch 22 are connected to the control device 18 via a signal line (not shown) built in the refueling hose 5.

The hand lowering switch 22 can be operated by pulling down the cord 23, whereby the refueling hose 5 is extended to lower the refueling nozzle 6 from the standby position B to the refueling position A. Also, after the refueling work is completed at the refueling position A,
When the hand lift switch 21 of the hand switch box 20 is pressed, the refueling hose 5 is wound into the delivery unit 4 by the elevating mechanism 16 and the refueling nozzle 6 is raised to the standby position B.

The hand lowering switch 22 also functions as a reset switch for the fueling amount indicator 19a to prepare for the current refueling work. Therefore, the hand lowering switch 2
When 2 is operated by the string 24, the display of the amount of oil supplied by the oil supply amount indicator 19a during the previous oil supply operation becomes zero and the oil supply nozzle 6 descends to the oil supply position A.

A main switch box 24 is installed on the wall surface 2a of the building 2, and the main switch box 24 has a main raising switch 25 for raising the refueling nozzle 6 at the standby position B to the upper end position C. When,
A main lowering switch 26 for lowering the refueling nozzle 6 at the upper end position C to the standby position B is provided.

Further, the main switch box 24 is connected to the control device 18, and the main raising switch 25,
By operating the main lowering switch 26, the hose reel 12
Is driven and controlled in the hose winding direction or the hose unwinding direction. Here, the display device 19 which constitutes the main part of the present invention will be described. 2 shows a front view of the display device 19 with the cover removed, and FIG. 3 shows a cross-sectional view of the display device 19 seen from the right side.

In the display device 19, a refueling amount indicator 19a is rotatably provided inside a box-shaped casing 31, and the front face of the refueling amount indicator 19a faces the opening 31a of the casing 31. It is installed upright. The refueling amount indicator 19a includes a five-digit seven segment 33, a light emitting element 34 that emits light for detecting the position of the windshield 17a of the vehicle 17, and a light receiving element that receives light reflected by the windshield 17a of the vehicle 17. An element 35 and a photometric sensor 36 that detects the ambient brightness are provided on the front surface of the base 32.

The base 32 is provided on the inner wall of the housing 31.
Brackets 37 and 38 that support the lower end of the base so as to be rotatable in the front-rear direction (X direction) and brackets 39 and 40 that support the upper end of the base 32 to be swingable in the front-rear direction are provided. Brackets 37 and 3 fixed to the bottom surface of the housing 31
Reference numeral 8 denotes shafts 32a, 32 protruding toward both lower ends of the base 32.
It has bearings 37a and 38a for bearing b.

The brackets 39, 40 fixed to the top plate of the housing 31 have arc-shaped guide holes 39a, 40a for guiding the swinging direction of the shafts 32c, 32d protruding to both sides of the upper end of the base 32. . A drive mechanism 41 that rotates the base 32 so as to swing the upper end of the oil supply amount indicator 19a in the front-rear direction is provided inside the housing 31. The drive mechanism 41 includes a gear 42 provided on a shaft 32b protruding to the lower right side of the base 32, a drive gear 43 that meshes with the gear 42, and a stepping motor 44 that rotates the drive gear 43 by a predetermined angle. Consists of.

The stepping motor 44 is fixed to the inner wall of the housing 31, and rotates the base 32 by a predetermined angle according to a command from the control device 18 to adjust the orientation of the oil supply amount indicator 19a. The orientation of the oil supply amount indicator 19a is adjusted according to the position of the windshield 17a of the vehicle 17 detected by the light emitting element 34 and the light receiving element 35 as described later. That is, the refueling amount indicator 19a rotates in a direction that is easy to see from the driver's seat of the vehicle 17 by adjusting the inclination angle according to the stop position of the vehicle 17.

FIG. 4 shows the adjustment position of the oil supply amount indicator 19a with respect to the stop position of the vehicle 17. For example, the vehicle 17 is directly below the delivery unit 4 separated from the display 19 (see FIG.
(Indicated by the broken line).
When a is rotated in the vertical direction and the vehicle 17 stops at a position close to the display 19 (shown by the solid line in FIG. 4),
The base 32 is rotated to adjust the oil supply amount indicator 19a downward.

Further, the brightness of the surroundings varies depending on the time of the day such as morning, daytime, evening, and night, or the weather (clear weather, cloudy weather, rain, etc.) of the day, and the refueling amount display 1 according to the luminous intensity of the surroundings.
It becomes difficult to see the value of 9a. Therefore, the control device 18
Detects the brightness of the surroundings by the light intensity sensor 36, and as a result, adjusts the light emission amount of the 7-segment 33 of the refueling amount indicator 19a so that it is easy to see. In this embodiment, a photocell that generates a current according to the brightness of the received light is used as the light intensity sensor 36.

FIG. 5 is a block diagram showing the configuration of the control device 18 and the connection with each device. The controller 18 is C
It comprises a PU 51, a ROM 52, a RAM 53, and an I / O interface 54. The I / O interface 54 includes a pump motor 8, a flow rate pulse transmitter 11, a hose elevating motor 14, a position detector 15, an oil supply amount indicator 19a, a hand raising switch 21, a hand lowering switch 22, a main raising switch 25, Main lower switch 26, 7 segment 33, light emitting element 34, light receiving element 35, light intensity sensor 36,
Each device such as the stepping motor 44 is connected.

The ROM 52 of the control device 18 has a display position adjusting program 18A for rotating the refueling amount display 19a so as to face the windshield 17a of the vehicle 17, as will be described later, and the ambient brightness. The display light emission amount control program 18B for adjusting the light emission amount of the oil supply amount indicator 19a according to the input is input. Further, in the ROM 52, the light emission amount of the oil supply amount indicator 19a according to the light intensity detected by the light intensity sensor 36 is set. In the case of the present embodiment, for example, 100% dimming with a luminosity of 1, 70% dimming with a luminosity of 2, 50% dimming with a luminosity of 3, 40% dimming with a luminosity of 4 and 5 luminosity.
It is set in advance so that the dimming is 30%.

Now, the processing executed by the control device 18 will be described. The control device 18 executes the refueling work process shown in FIGS. 6 and 7 and the display angle / light emission amount adjustment process shown in FIG. First, the refueling work process will be described with reference to FIGS. 6 and 7, and then, with reference to FIG.
The light emission amount adjustment processing will be described.

When the refueling nozzle 6 is located at the upper end position (storage position) C in the vicinity of the delivery unit 4 in step S1 (hereinafter "step" is omitted), the control circuit 18 switches the main lowering switch of the main switch box 24. Check if 26 has been operated on. S1
When the main lowering switch 26 is turned on at S2, the process proceeds to S2, where the hose raising / lowering motor 14 of the raising / lowering mechanism 16 is driven downward to lower the refueling hose 5.

In the next step S3, the fueling nozzle 6 is moved to the standby position B.
I have checked if I arrived at the refueling nozzle 6
When the robot arrives at the standby position B, the process proceeds to S4 and the lifting mechanism 1
The hose lifting motor 14 of No. 6 is stopped and the fueling nozzle 6
Is stopped at the standby position B. Succeedingly, in S5, it is checked whether or not the cord 23 of the hand switch box 20 is pulled downward and the hand lowering switch 22 is turned on. Here, when the cord 23 is pulled downward, the process proceeds to S6, in which the hose elevating motor 14 of the elevating mechanism 16 is driven to descend, and the refueling hose 5 is further lowered.

When the refueling hose 5 is lowered, S7
The control for adjusting the angle and the light emission amount of the oil supply amount indicator 19a, which will be described later, is performed. Further, in S8, it is checked whether the refueling nozzle 6 has arrived at the refueling position A, and the processes of S6 and S7 are repeated until the refueling nozzle 6 reaches the refueling position A. However, when the refueling nozzle 6 arrives at the refueling position A, the process proceeds to S9, the hose elevating motor 14 of the elevating mechanism 16 is stopped, and the refueling nozzle 6 is stopped at the refueling position A.

Next, the pump motor 8 is started and the display of the oil supply amount indicator 19a is reset to zero (S1).
0). Subsequently, a refueling process is executed (S11). In this refueling process, the refueling nozzle 6 is operated to open the valve and the refueling amount sent to the fuel tank is measured by the flow meter 10, and the pulses output from the flow rate pulse transmitter 11 of the flow meter 10 are integrated. Then, the integrated value is displayed on the refueling amount display 19a.

At the next step S12, it is checked whether or not the hand raising switch 21 is turned on. When refueling of the fuel tank is completed and the hand raising switch 21 is turned on, the process proceeds to S13, and the pump motor 8 is stopped. Then, the process proceeds to S14, in which the hose elevating motor 14 of the elevating mechanism 16 is driven to ascend to elevate the fuel supply hose 5. The refueling hose 5 is raised until the refueling nozzle 6 is raised to the standby position B.

When the position detector 15 detects that the refueling nozzle 6 has moved to the standby position B in S15, the process proceeds to S16, and the hose lifting motor 14 is stopped. In the next S17, it is checked whether or not the main raising switch 25 has been operated to be turned on. If the main raising switch 25 has not been turned on, the process returns to S5 and the processes of S5 to S17 are repeated.

However, at the end of the day, the main raising switch 25 is turned on to prepare for closing the store. Therefore, in S17, the main raising switch 2
When 5 is turned on, the process proceeds to S18, and the lifting mechanism 16
The hose elevating motor 14 is raised to drive the refueling hose 5. The refueling hose 5 is raised until the refueling nozzle 6 is raised to the upper end position C.

When the position detector 15 detects that the refueling nozzle 6 has moved to the upper end position C in S19, the process proceeds to S20, and the hose lifting motor 14 is stopped. This completes the series of processes for the refueling work. next,
The angle and light emission amount control of the fuel supply amount indicator 19a executed in S7 will be described with reference to the subroutine shown in FIG.

First, the light emitting element 34 provided on the oil supply amount indicator 19a is caused to emit light to illuminate the vehicle 17 with light (S21). Then, the light from the light emitting element 34 is emitted from the vehicle 17
Refueling amount indicator 19a reflected by the windshield 17a of
When light is received by the light receiving element 35 provided in the vehicle, the amount of received light is detected to determine whether or not the refueling amount indicator 19a is at an angle that is easy to see from the driver's seat of the vehicle 17.

In the next step S22, it is checked whether or not the amount of light received by the light receiving element 35 is 100%. When the amount of light received by the light receiving element 35 is equal to the amount of light emitted from the light emitting element 34, it is determined that the amount of light received is 100%. However, when the refueling amount indicator 19a faces a direction deviated from the stop position of the vehicle 17, the light from the light emitting element 34 is reflected at a position deviated from the light receiving element 35, and the light receiving amount is 100% or less. Becomes Therefore, in S22, when the received light amount is 100% or less, the refueling amount indicator 19
Adjust the angle of a.

That is, the amount of light received by the light receiving element 35 is 100%.
In the case of the following, the process proceeds to S23 and the stepping motor 44 is normally rotated by one pulse. Then, in the next S24, it is checked whether or not the amount of light received by the light receiving element 35 has increased. In S24, when the amount of light received by the light receiving element 35 has increased, the process returns to S22, and it is checked again whether the amount of light received by the light receiving element 35 is 100%. Here, when the amount of light received by the light receiving element 35 is 100% or less, the processes of S23 and S24 are executed again. Therefore, the angle of the oil supply amount indicator 19a in the forward direction is adjusted until the amount of light received by the light receiving element 35 reaches 100%.

If the amount of light received by the light receiving element 35 is reduced in S24, the process proceeds to S25, in which the stepping motor 44 is reversed by one pulse. And next S26
Then, it is checked whether or not the amount of light received by the light receiving element 35 is 100%. Here, when the amount of light received by the light receiving element 35 is 100% or less, the process of S25 is executed again. Therefore, the angle of the oil supply amount indicator 19a in the reverse direction is adjusted until the amount of light received by the light receiving element 35 reaches 100%.

When the amount of light received by the light receiving element 35 in S22 or S26 reaches 100%, it is determined that the oil supply amount indicator 19a is facing the windshield 17a of the vehicle 17, and the amount of oil supply is determined. The angle adjustment of the display 19a is completed and the process proceeds to S27. As a result, the angle of the refueling amount indicator 19a of the display device 19 is automatically adjusted according to the stop position of the vehicle 17, and the refueling amount indicator 19a faces the driver's seat of the vehicle 17. Therefore, the driver of the vehicle 17 can easily see the refueling amount displayed on the refueling amount display 19a from the driver's seat, and the angle of the refueling amount display 19a is as described above even when the vehicle is stopped at a position displaced from the delivery unit 4. The oil supply amount at that time can be easily confirmed by adjusting to.

After S27, the light emission amount adjusting process of the oil supply amount indicator 19a is executed. That is, the ambient light intensity detected by the light intensity sensor 36 is read in S27. In S28, when the detection level of the light intensity detected by the light intensity sensor 36 is the light intensity 1, for example, it is determined that the direct sunlight is radiated around the refueling amount indicator 19a in fine weather, and S
In step 29, the light emission amount of the oil supply amount indicator 19a is adjusted to 100%.

Therefore, the amount of light emitted from the fuel amount indicator 19a is adjusted to 100% and the brightest image is displayed. As a result, the driver of the vehicle 17 can easily see the refueling amount indicator 19a from the driver's seat even when the surroundings are bright, and the refueling amount indicator can be displayed despite the direct sunlight being radiated around the refueling amount indicator 19a. The amount of refueling displayed on the container 19a can be easily visually recognized.

If the detection level of the luminous intensity detected by the luminous intensity sensor 36 is not luminous intensity 1 in S28, S
Go to 30. Then, when the detection level of the light intensity detected by the light intensity sensor 36 is the light intensity 2, for example, it is determined that it is daytime when the sunlight is strong, and the process proceeds to S31, and the refueling amount display 1
The light emission amount of 9a is adjusted to 70%.

If the detection level of the luminous intensity detected by the luminous intensity sensor 36 is not luminous intensity 2 in S30, S3 is executed.
Proceed to 2. Then, when the detection level of the light intensity detected by the light intensity sensor 36 is the light intensity 3, for example, it is determined that it is morning when the sunlight is weak, the process proceeds to S33, and the refueling amount indicator 19a.
The light emission amount of is adjusted to 50%.

Further, in S32, when the detection level of the light intensity detected by the light intensity sensor 36 is not the light intensity 3, S
Proceed to 34. Then, when the detection level of the light intensity detected by the light intensity sensor 36 is the light intensity 4, for example, it is determined that it is the evening when the sunlight is weak, the process proceeds to S35, and the refueling amount display 1
The light emission amount of 9a is adjusted to 40%.

In S34, if the detection level of the light intensity detected by the light intensity sensor 36 is not 4, the light intensity is S3.
Proceed to 6. Then, when the detection level of the light intensity detected by the light intensity sensor 36 is the light intensity 5, it is determined that it is night, for example, and the process proceeds to S37, and the light emission amount of the refueling amount indicator 19a is adjusted to 30%.

Further, in S36, when the detection level of the light intensity detected by the light intensity sensor 36 is not the light intensity 5, the angle of the oil supply amount indicator 19a and the light emission amount control are terminated. As described above, the refueling amount display 1 is provided so that the display is brighter than the surrounding brightness based on the light intensity detected by the light intensity sensor 36.
It is possible to adjust the light emission amount of each 7 segment 33 of 9a to a brightness that is easy to see. Therefore, the driver of the vehicle 17 receiving refueling adjusts the light emission amount of the refueling amount indicator 19a by detecting this even if the ambient brightness changes due to the weather or the time of day and the brightness sensor 36 detects this. The refueling amount displayed on the refueling amount indicator 19a can be easily visually recognized regardless of the weather or the time of day.

In the above embodiment, the suspension type oil supply apparatus in which one delivery unit 4 is installed is taken as an example, but the present invention is not limited to this, and two or more delivery units are installed. It goes without saying that it can also be applied to a suspended refueling device. Further, in the above embodiment, the single suspension type weighing machine in which the one refueling hose 5 is hung from the one delivery unit 4 has been described as an example, but the one delivery unit 4 to the plurality of refueling hoses 5 are used. Of course, the present invention can also be applied to a double-type or multi-type suspension-type weighing machine in which is suspended.

Further, in the above embodiment, the oil supply amount indicator 19
Although a is rotated in the front-rear direction, the invention is not limited to this, and it goes without saying that the oil supply amount indicator 19a may be swung in the left-right direction. Further, in the above embodiment, the suspension type oil supply device has been described as an example, but in addition to this,
Needless to say, it can be applied to, for example, a fixed weighing machine installed on the ground.

Further, in the present embodiment, the configuration is such that the light emission amount is adjusted after the angle adjustment of the display device shown in FIG. 8 and the light emission amount adjustment control process is performed, but the present invention is not limited to this. The light emission amount may be adjusted at the same time when the angle is adjusted.

[0053]

As described above, according to the present invention, the rotating mechanism is operated so that the display unit faces the position direction of the glass of the vehicle detected by the position detecting mechanism, and the detecting is performed by the light intensity sensor. Since the light emission amount of the display unit is adjusted according to the brightness around the display unit, the amount of refueling displayed on the display unit can be easily seen. Therefore, even when the vehicle is stopped at a position other than the predetermined stop position to receive refueling, the display unit can be rotated so as to face the driver's seat of the vehicle and the displayed refueling amount can be easily seen. Therefore, since the angle is automatically adjusted so that the display unit faces the driver's seat of the vehicle and the light emission amount of the display unit is adjusted, the driver of the vehicle to be refueled can change the position from the predetermined stop position. Even when the vehicle is stopped at the shifted position, the amount of refueling displayed on the display unit can be surely confirmed from the driver's seat.

Further, since the light emission amount of the display unit is adjusted according to the ambient brightness detected by the light intensity sensor, the displayed refueling amount can be easily seen even if the ambient brightness changes. Therefore, even if the ambient brightness changes depending on the weather or time of day, the amount of light emitted from the display is adjusted to appear brighter than the surroundings, and the driver of the vehicle that receives refueling is Regardless, the amount of refueling displayed on the display can be easily visually recognized.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a suspension type oil supply device to which an embodiment of a display device according to the present invention is applied.

FIG. 2 is a front view of a display device.

FIG. 3 shows a cross-sectional view of the display device as seen from the right side.

FIG. 4 is a diagram showing a vehicle stop position and an angle adjustment operation of a refueling amount indicator.

FIG. 5 is a block diagram of a control device and each device of the suspension type oil supply device.

FIG. 6 is a flowchart for explaining refueling processing executed by a control device.

FIG. 7 is a flowchart for explaining refueling processing that is executed subsequent to the processing of FIG.

FIG. 8 is a flowchart for explaining a display angle / light emission amount adjustment process.

[Explanation of symbols]

 1 Suspended Refueling Device 4 Delivery Unit 5 Refueling Hose 6 Refueling Nozzle 12 Hose Reel 14 Hose Elevating Motor 16 Elevating Mechanism 18 Control Device 19 Display Device 19a Refueling Amount Display 20 Hand Switch Box 21 Hand Up Switch 22 Hand Down Switch 32 Base 33 7 segment 34 Light emitting element 35 Light receiving element 36 Photometric sensor 41 Drive mechanism 44 Stepping motor

Claims (1)

[Claims] 1. A display device for displaying the amount of fuel refueled in a fuel tank of a vehicle by light emission, and a rotating mechanism for rotating a display unit for displaying the amount of refueling, and a position for detecting the position of the glass of the vehicle. A detection mechanism, a light intensity sensor that detects the brightness around the display unit, and the display unit that operates the rotating mechanism so as to face the glass of the vehicle detected by the position detection mechanism, A display device comprising: a control unit that adjusts a light emission amount of the display unit according to brightness detected by a light intensity sensor.