JPH0678080U - Door open warning light - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a door opening warning light that can be easily mounted at any position by eliminating the power feeding cord and that does not spoil the aesthetics of the vehicle interior. A case 11 attached to a position 16a exposed rearward when the door 16 of an automobile is opened, an optical sensor 12 provided on the surface of the case, an LED lamp 13 attached to the surface of the case, and the LED lamp described above. It includes a drive control circuit 14 built in a case for driving and a power supply battery 15 as a drive power source built in the case. When the door is opened, external light enters the optical sensor to control the drive. The circuit is configured to cause the LED lamp to emit light.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door opening warning light for warning a driver or the like of a succeeding vehicle of an opened state of an automobile door.

[0002]

[Prior art]

 Conventionally, such a door opening warning light is constructed as shown in FIGS. 12 and 13, for example. That is, in FIG. 12, the door opening warning light 1 is housed in the light emitting portion 4 mounted on the end face 3a of the rear edge of the door 3 of the automobile 2 and the door pocket 3b provided inside the door 3. It comprises a battery box 5 and an automatic switch circuit 6. The light emitting unit 4, the battery box 5 and the automatic switch circuit 6 are electrically connected to each other via a connection cord 7.

As shown in FIG. 13, the light emitting unit 4 covers a plurality of light emitting elements 4b such as LEDs mounted side by side on a flexible elongated printed circuit board 4a and the light emitting element 4b. The translucent elastic sheet 4c made of silicone resin or the like is placed on the printed circuit board 4a, and the control circuit 4d mounted on one end of the printed circuit board 4a to drive and control each light emitting element 4b. It is configured. Further, the light emitting part 4 can be attached to the end face 3a of the rear edge of the door 3 by an appropriate means such as a double-sided adhesive tape attached to the back surface thereof, an adhesive, a screw or the like.

In addition, the battery box 5 accommodates the battery 5a therein, and hooks the hook 5b provided on the end face of the case to the side edge of the door pocket 3b, so that the door pocket 3b can be removed. It can be fixedly held.

Further, as shown in FIG. 12, in the automatic switch circuit 6, the switch operating portion 6a protruding toward the door frame side at the opening / closing portion of the door 3 is pushed by the door frame when the door is closed. It is configured to be turned off when the door is closed and turned on when the door is opened.

According to the door open warning light 1 configured as described above, since the automatic switch circuit 6 is off when the door 3 of the automobile 2 is closed, the drive voltage from the battery box 5 is the light emitting unit. 4 is not supplied to the control circuit 4d, and therefore each light emitting element 4b of the light emitting unit 4 remains off.

When the door 3 of the automobile 2 is opened from this state, the automatic switch circuit 6 is turned on, and the drive voltage from the battery box 5 is supplied to the control circuit 4d. As a result, the control circuit 4d turns on or blinks each light emitting element 4b. In this way, the light emitting elements 4b of the light emitting section 4 are lit or blinked on the end face of the rear edge of the door 3 so that a warning can be displayed that the door is open to the rear. Become.

[0008]

[Problems to be solved by the device]

 However, in the door warning light 1 having such a configuration, the battery box 5 separate from the light emitting unit 4 is used as a power source for controlling the drive of each light emitting element 4b of the light emitting unit 4. A connection cord 7 for connecting the battery box 5 and the light emitting part 4 is required, and the connection cord 7 is laid along the door surface. For this reason, there is a problem that the mounting work on the vehicle body is troublesome, the mounting place is limited, and the aesthetics of the vehicle interior at the time of mounting is spoiled.

In view of the above points, the present invention eliminates the power supply cord and thus can be easily mounted at any position and does not spoil the aesthetics of the interior of the vehicle. Is intended to provide.

[0010]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the door opening warning light according to claim 1 is provided on a surface of the case and a case which is mounted at a position exposed rearward at the time of opening the door in a vehicle door or a door peripheral portion. Light sensor, an LED lamp mounted on or near the case, a drive control circuit contained in the case for driving the LED lamp, and a drive power supply built into the case. It is characterized in that the drive control circuit causes the LED lamp to emit light when external light enters the optical sensor when the door is opened.

Further, the door opening warning light according to claim 2 is mounted on a vehicle door or a door peripheral portion at a position exposed rearward when the door is opened, and an optical sensor provided on the surface of the case. And a solar cell as a control power source for the LED lamp and the optical sensor mounted on the surface of the case or separately from the case and in the vicinity thereof, and an optical sensor control circuit unit and an LED lamp drive circuit built in the case. It includes a drive control circuit consisting of a unit and a power supply battery built into the case. The optical sensor and the optical sensor control circuit unit are driven by the solar cell, and the LED lamp drive circuit is driven by the power supply battery. When the door is opened, the drive control circuit causes the LED lamp to emit light when external light enters the optical sensor.

[0012]

[Action]

 According to the above configuration, the door opening warning light can be attached by only attaching the case to the end face of the rear edge of the automobile door, for example. In other words, since the power supply battery as the driving power source is also built in the case, it is not necessary to run the connection cord and the like along the surface of the door, so that the connection cord will not be exposed in the passenger compartment. Therefore, the aesthetics of the passenger compartment will not be impaired. In addition, since this door open warning light can be attached to any automobile afterwards, it can be sold alone as an automobile article, which improves the commercialability.

[0013]

【Example】

 Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in the drawings. FIG. 1 shows an embodiment of a door opening warning light according to the present invention. In FIG. 1, a door opening warning light 10 includes a case 11, an optical sensor 12 provided on the surface of the case 11 so that a light receiving surface is exposed, an LED lamp 13 attached to the surface of the case 11, and a case 11. A drive control circuit 14 for driving the LED lamp 13 incorporated therein is included, and a power supply battery 15 as a drive power source incorporated in the case 11 is included.

Here, as the optical sensor 12, for example, a photodiode, a phototransistor or the like may be used.

In the illustrated case, the LED lamp 13 is composed of four LEDs arranged side by side in the vertical direction.

The drive control circuit 14 is configured, for example, as shown in FIG. That is, in FIG. 2, the drive control circuit 14 includes an OP amplifier 20 in which a photodiode 12 as an optical sensor is connected between two input terminals, and an output of the OP amplifier 20 connected in series via a resistor 21. A pair of NAND gates 22 and 23 connected to each other, a timer circuit 24 connected to the output of the NAND gate 23 and including a capacitor 24a, a resistor 24b, and a diode 24c, and an output of the timer circuit 24. And a series of two NAND gates 25a, 25b, resistors 25c, 25d and a capacitor 25c connected in series, and a switching transistor in which the output from this blinking circuit 25 is input to the base via a resistor 26. It is composed of 27 and so on. The switching transistor 27 has a collector connected to the LED lamp 13 and an emitter connected to the ground. Further, the LED lamp 13 is supplied with a drive voltage from the power supply battery 15.

The door open warning light 10 according to the present invention is constructed as described above. When used, the door open warning light 10 is used, for example, as shown in FIG. 16 is attached to the outer side of the door seal 16b at the end face 16a of the rear edge of 16. In this case, by attaching a double-sided tape or a magnet plate to the back surface of the case 11 and bringing it into contact with the end surface 16a, the attachment can be easily performed by adhesion or adsorption.

As described above, the door opening warning light 10 mounted on the vehicle door 16 is located between the end surface 16a of the vehicle door 16 and the vehicle body side of the vehicle when the door is closed. No light is incident. Therefore, since the output voltage from the optical sensor 12 is low, the input of the NAND gate 22 does not reach the threshold value. As a result, an L level signal is input to the base of the switching transistor 27, so that the switching transistor 27 remains off. Thus, the LED lamp 13 does not light up.

When the vehicle door 16 is opened from this state, the door opening warning light 10 is exposed toward the rear of the vehicle. As a result, when external light, such as sunlight in the daytime and light from the headlamps of other automobiles in the nighttime, enters the optical sensor 12, the output voltage of the optical sensor 12 increases, The input threshold of the NA ND gate 22 will be exceeded. Therefore, an H level signal is output from the NAND gate 23, and this signal is input to the blinking circuit 25 via the timer circuit 24. Since the blinking circuit 25 alternately outputs an H level signal and an L level signal every predetermined time, the switching transistor 27 is turned on and off every predetermined time. Thus, the LED lamp 13 is repeatedly turned on and off at predetermined time intervals and is made to blink.

Here, the capacitor 24a of the timer circuit 24 is charged after the output of the NAND gate 23 is inverted to the H level. After charging, the capacitor 24a is discharged through the diode 24c, so that the voltage of the capacitor 24a becomes equal to or lower than the threshold value of the NAND gate 25a and the NAND gate 25a is inverted when a certain time elapses. Then, the output of the NAND gate 25b becomes L level. As a result, the switching transistor 27 is turned off and the LED lamp 13 is turned off. Thus, it is possible to prevent wear of the power supply battery due to long-time lighting of the LED lamp 13.

When the vehicle door 16 is closed before the automatic turn-off, the door opening warning light 10 is housed between the vehicle body side and the vehicle body side of the vehicle, so that the light sensor 12 can receive outside light. Will not be incident. Therefore, the output voltage of the optical sensor 12 becomes low and becomes equal to or lower than the input threshold value of the NAND gate 22. Therefore, the NAND gates 22 and 23 are inverted and the output of the NAND gate 23 becomes L level. As a result, the output of the NAND gate 25a is held at the H level, the NAND gate 25b is inverted, and the output of the NAND gate 25b becomes the L level, so that the switching transistor 27 is turned off. Thus, the LED lamp 13 is turned off.

Further, the drive control circuit 14 may be configured as shown in FIG. That is, in FIG. 4, in the drive control circuit 14, the phototransistor 28 as the photosensor is connected in series between the power supply and ground together with the resistor 37 and the variable resistor 38, and the phototransistor 28 is connected to the emitter in series. Of the two NAND gates 22 and 23 connected to each other, a capacitor 24a, a resistor 24b, a diode 24c, and a resistor 24d, which are connected to the output of the NAND gate 23, and a timer circuit 24. A blinking circuit 25 including two NAND gates 25a and 25b, resistors 25c and 25d, and a capacitor 25e connected in series to the output, and a switch whose output from the blinking circuit 25 is input to the base via a resistor 26. And a switching transistor 27. The switching transistor 27 has a collector connected to the LED lamp 13 and an emitter connected to ground. A resistor 29 is connected between the base and emitter of the switching transistor 27. Further, the LED lamp 13 is supplied with a drive voltage from the power supply battery 15.

According to the drive control circuit having such a configuration, as in the case of the drive control circuit of FIG. 2 described above, the LED lamp 13 is off when the automobile door 16 is closed, and the blinking drive control is performed when the door is opened. The light can be turned off after a certain period of time. Further, since the phototransistor is used in the embodiment of FIG. 4, the dark current is small and the life of the power supply battery is relatively long as compared with the drive control circuit of FIG.

FIG. 5 shows another embodiment of the door opening warning light according to the present invention. That is, in FIG. 5, the door opening warning light 30 is configured separately from the main body case 31, the optical sensor 32 provided on the surface of the main body case 31 so that the light receiving surface is exposed, and the main body case 31. It includes an LED lamp 33, a drive control circuit 34 for driving the LED lamp 33 built in the body case 31, and a power supply battery 35 as a driving power source built in the body case 31. .

Here, the optical sensor 32 may be, for example, a photodiode or a phototransistor.

Further, in the illustrated case, the LED lamp 33 is composed of four LEDs which are vertically arranged on the end face 33 a of the flat case, and the drive control circuit in the main case 31 is provided. It is connected to 34 via a relatively short connecting cord 36.

When the door opening warning light 30 configured as described above is used, for example, as shown in FIG. 6, the main body case 31 of the door opening warning light 30 is attached to the end surface of the rear edge of the door 16 of the automobile. At 16a, it is attached to the outside of the door seal 16b. In this case, by attaching a double-sided tape or a magnet plate to the back surface of the main body case 31 and bringing it into contact with the end face 16a, the attachment can be easily performed by adhesion or adsorption. The rear surface of the case of the LED lamp 33 has a rear surface of the vehicle door 16 with respect to the outer plate of the vehicle door 16 so that the end surface 33a on which the LED is disposed is located along the rear edge of the vehicle door 16 as shown in the figure. Similarly, it is attached by adhesion, adsorption or the like.

As described above, the door open warning light 30 mounted on the automobile door 16 is located between the end surface 16a of the automobile door 16 and the vehicle body side of the automobile when the door is closed, and the optical sensor 32 has Since no external light is incident, the drive control circuit 34 does not turn on the LED lamp 33.

From this state, when the vehicle door 16 is opened, the door opening warning light 30 is exposed toward the rear of the vehicle. As a result, when external light, for example, sunlight in the daytime and light from the headlamps of other automobiles in the nighttime enter the optical sensor 32, the drive control circuit 34 causes the LED lamp 33 to emit light. Is repeatedly turned on and off at predetermined time intervals, and blinks.

When the automobile door 16 is closed, the door open warning light 30 is housed between the automobile door 16 and the vehicle body side of the automobile, so that external light does not enter the optical sensor 32. . Therefore, the drive control circuit 34 turns off the LED lamp 33.

When the vehicle door 16 is open for a long time, the timer circuit built in the drive control circuit 34 operates and the LED lamp 33 is turned off after a predetermined time. ing.

FIG. 7 shows a usage state of a modified example of the door opening warning light 30 shown in FIG. That is, in FIG. 7, the door opening warning light 40 is configured such that the LED lamp 41 is configured to be relatively small and is mounted inside the outer plate of the automobile door 16, and thus the door opening warning light 40 in FIG. The configuration is different from that of the opening warning light 30.

The door opening warning light 40 operates in the same manner as the door opening warning light 30, and when the vehicle door 16 is closed, there is no protrusion from the vehicle door 16, so that the appearance of the vehicle is impaired. There is nothing.

FIG. 8 shows another embodiment of the door opening warning light according to the present invention. That is, in FIG. 8, the door opening warning light 50 is similar to the door opening warning light 10 shown in FIG. 1 in that the case 51 includes an optical sensor 52, an LED lamp 53, a drive control circuit and a power supply battery (not shown). ) Is configured as an all-in-one unit.

In this case, the door opening warning light 50 is mounted inside the lower portion of the rear end of the trunk lid 55 of the automobile 54, and when the trunk lid 55 is opened, the optical sensor 52 detects outside light, The LED lamp 53 can be turned on. As a result, it is designed to notify the presence of automobiles and other vehicles traveling from behind.

Although the door opening warning light 50 is attached to the trunk lid 55 in the case of FIG. 8, it is attached to the inside of the upper end of the trunk opening of the automobile 54 as shown by the chain line in FIG. It may be. In this case, when the trunk lid 55 is opened, the optical sensor 52 and the LED lamp 53 are arranged so as to be exposed rearward. The vehicle door in the present invention is used as a concept including the driver's seat side door, the passenger side door, the rear seat door and the trunk lid as described above.

FIG. 9 shows another embodiment of the electrical configuration in which the optical sensor and the control circuit section are driven by the solar cell. The OP amplifier 20 consumes about 14 μA in the standby state, and together with the total standby current of the C-MOS of the NAND gate of about 30 μA, the standby current is about 44 μA, but the drive voltage is supplied from the solar cell 66. As a result, the power supply battery 15 is not consumed and the standby state is maintained.

In FIG. 9, the solar cell 66 is constructed so that when the light receiving surface thereof is exposed to external light, the solar cell 66 generates electric power and charges the capacitor 66a so that a predetermined voltage can be constantly output.

FIG. 10 is a perspective view of the door opening warning light 30 having the solar cell 66 built therein, and FIG. 11 is a schematic perspective view showing a usage state.

In the case of the above embodiment using the solar cell 66, since the output signal of the optical sensor 32 is processed and controlled by the solar cell 66, the power source battery 35 is used only when driving the LED lamp 33. The battery life will be longer and less replacement will be required. In this case, the solar cell 66 is configured integrally with the LED lamp 33, and is attached to, for example, the outer end surface of the driver side door.

[0041]

[Effect of device]

 As described above, according to the present invention, the door opening warning light can be mounted by simply attaching the case to, for example, the end face of the rear edge of the automobile door, and the power source as the drive power source can be mounted. Since the battery is also built into the case, there is no need to run the connection cord along the surface of the door, so the connection cord will not be exposed inside the vehicle interior, thus impairing the aesthetics of the vehicle interior. Never. In addition, since this door opening warning light can be attached to any vehicle later, it can be sold alone as an automobile article, which improves the merchantability.

Thus, according to the present invention, by eliminating the cord for power feeding, it can be easily mounted at any position, and the door opening is extremely excellent, which does not spoil the aesthetics of the vehicle interior. A warning light could be provided.

[Submission date] May 31, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction content]

The drive control circuit 14 is configured, for example, as shown in FIG. That is, in FIG. 2, the drive control circuit 14 outputs an operational amplifier (hereinafter, referred to as “ OP amplifier ”) 20 in which a photodiode 12 as an optical sensor is connected between two input terminals and an output of the OP amplifier 20 . On the other hand, two NAND gates 22 and 23 connected in series via a resistor 21 and a timer circuit 24 composed of a capacitor 24a, a resistor 24b and a diode 24c connected to the output of the NAND gate 23. , two NAND gates 25a are connected in series to the output of the timer circuit 24, 25b and resistor 25c, and flashing circuits 25 consisting 25d and capacitor 25 e, output from the flasher circuit 25 through a resistor 26 And a switching transistor 27 input to the base. The switching transistor 27 has a collector connected to the LED lamp 13 and an emitter connected to the ground. Further, the LED lamp 13 is supplied with a driving voltage from the power battery 15.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Correction content]

The door opening warning light 10 thus mounted on the vehicle door 16 is located between the end surface 16 a of the vehicle door 16 and the vehicle body side of the vehicle when the door is closed, and the optical sensor 12 is not exposed to the outside. No light is incident. Therefore, since the photocurrent of the optical sensor 12 is small and the output voltage of the OP amplifier 20 is low, the input of the NAND gate 22 does not reach the threshold value. As a result, an L level signal is input to the base of the switching transistor 27, and the switching transistor 27 remains off. Thus, the LED lamp 13 does not light up.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0019

[Correction method] Change

[Correction content]

When the vehicle door 16 is opened from this state, the door opening warning light 10 is exposed toward the rear of the vehicle. As a result, when external light, for example, sunlight in the daytime and light from the headlamps of other automobiles in the nighttime is incident on the optical sensor 12, the photocurrent of the optical sensor 12 increases and the OP current increases. the output voltage of the amplifier 20 becomes higher, thus exceeding the input threshold of NAND gate 22. Therefore, an H level signal is output from the NAND gate 23, and this signal is input to the blinking circuit 25 via the timer circuit 24. Since the blinking circuit 25 alternately outputs an H level signal and an L level signal at predetermined time intervals, the switching transistor 27 is turned on / off at the predetermined time intervals. Thus, the LED lamp 13 is repeatedly turned on and off at predetermined time intervals, and blinks.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0021

[Correction method] Change

[Correction content]

Further, when the vehicle door 16 is closed before the automatic turn-off, the door opening warning light 10 is housed between the vehicle body side and the vehicle body side of the vehicle, so that the light sensor 12 of the vehicle door 16 can receive outside light. Will not be incident. Therefore, the photocurrent of the optical sensor 12 becomes small, the output voltage of the OP amplifier 20 becomes low, and the input voltage of the NAND gate 22 becomes lower than the input threshold value. Therefore, the NAND gates 22 and 23 are inverted, and the output of the NAND gate 23 becomes L level. As a result, the output of the NAND gate 25a is held at H level, the NAND gate 25b is inverted, and the output of the NAND gate 25b becomes L level, so that the switching transistor 27 is turned off. Thus, the LED lamp 13 is turned off.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Name of item to be corrected] 0023

[Correction method] Change

[Correction content]

According to the drive control circuit having such a configuration, as in the case of the drive control circuit of FIG. 2 described above, the LED lamp 13 is off when the automobile door 16 is closed, and the blinking drive control is performed when the door is opened. The light can be turned off after a certain period of time. Further, in the embodiment of FIG. 4, since the phototransistor is used and the circuit configuration does not use an operational amplifier, the dark current is smaller than that of the drive control circuit of FIG. 2, and the life of the power supply battery is relatively long. Has become.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a door opening warning lamp according to the present invention.

FIG. 2 is a circuit diagram showing an example of an electrical configuration of the door opening warning lamp of FIG.

FIG. 3 is a schematic perspective view showing a use state of the door opening warning light of FIG.

FIG. 4 is a circuit diagram showing another example of the electrical configuration of the door opening warning lamp of FIG.

FIG. 5 is a perspective view showing another embodiment of the door opening warning light according to the present invention.

FIG. 6 is a schematic perspective view showing a usage state of the door opening warning lamp of FIG.

FIG. 7 is a schematic perspective view showing a use state of still another embodiment of the door open warning light according to the present invention.

FIG. 8 is a schematic perspective view of an example in which the door opening warning light according to the present invention is attached to a trunk and used.

FIG. 9 is a circuit diagram showing an electrical configuration of a door opening warning light using a solar cell.

FIG. 10 is a perspective view of a door opening warning light using a solar cell according to the present invention.

11 is a schematic perspective view showing a use state of the door opening warning light of FIG.

FIG. 12 is a schematic view showing a usage state of an example of a conventional door opening warning light.

13 is an enlarged perspective view of the door opening warning lamp of FIG.

[Explanation of symbols]

 10 Door Opening Warning Light 11 Case 12 Optical Sensor 13 LED Lamp 14 Drive Control Circuit 15 Power Battery 16 Car Door 20 OP Amplifier 21 Resistance 22 NAND Gate 23 NAND Gate 24 Timer Circuit 25 Flashing Circuit 26 Resistance 27 Switching Transistor 28 Phototransistor 29 Resistance 30 Door Opening Warning Light 31 Case 32 Optical Sensor 33 LED Lamp 34 Drive Control Circuit 35 Power Battery 36 Connection Code 38 Variable Resistor 40 Door Opening Warning Light 41 LED Lamp 50 Door Opening Warning Light 51 Case 52 Optical Sensor 53 LED Lamp 54 Automotive 55 Trunk lid 66 solar cell

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location H01L 33/00 J 7376-4M

Claims (2)

[Scope of utility model registration request] 1. A case attached to a position exposed rearward when a door is opened in an automobile door or a door peripheral portion, an optical sensor provided on a surface of the case, and a surface of the case or a case separate from each other. It includes an LED lamp mounted in the vicinity thereof, a drive control circuit incorporated in a case for driving the LED lamp, and a power battery as a drive power source incorporated in the case, and when the door is opened. A door opening warning light, characterized in that a drive control circuit causes an LED lamp to emit light when external light is incident on the optical sensor. 2. A case attached to a position exposed rearward when the door is opened in an automobile door or a door peripheral portion, an optical sensor provided on a surface of the case, and a surface of the case or a case separate from each other. A solar cell as a control power source for an LED lamp and an optical sensor mounted in the vicinity thereof, an optical sensor control circuit unit and L built in the case
It includes a drive control circuit composed of an ED lamp drive circuit section and a power supply battery built in a case, and the optical sensor and the optical sensor control circuit section are driven by a solar cell, and an LED is provided.
A door opening warning lamp, characterized in that the lamp driving circuit is driven by a power supply battery, and external light enters the optical sensor when the door is opened so that the driving control circuit causes the LED lamp to emit light.