JPS61178247A - Lighting checking device for vehicle lamp - Google Patents

Abstract

PURPOSE:To prevent a lighting visually checking device from being erroneously operated by external light, by providing a thermal sensor in opposite to a lamp bulb, and by connecting the output section of the sensor to the lighting visually checking device so that the lighting visually checking device is operated by the heat generated from the bulb which is turned on. CONSTITUTION:A vehicle lamp such as, for example, a tail lamp, is composed of a bulb 19, a base member 20 for supporting the bulb 19 by means of a socket 15, and a lens 21 covering the bulb 19 together with the base member 20. In the above- mentioned arrangement, the socket 15 is attached thereto with a first heat-to-electricity converting element 23 for detecting the temperature of a heat generated from the bulb 19 which is turned on. Further, the base member 20 is attached on its inner surface with a second heat-to-electricity converting element 24 for detecting the temperature of the atmosphere inside of the tail lamp. Further, the output sections of these elements 23, 24 are connected to a lighting visually checking means 27 for the tail lamp through the control unit 26. With this arrangement, the lighting checking means 27 is energized in association with the heat which is generated when the bulb 19 is turned on, and therefore, it is possible to prevent the device from being erroneously operated by the external light.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a lighting confirmation device that allows an occupant to correctly confirm whether a vehicle lamp is lit.

(Prior Art) When a light such as a tail light is disconnected while the vehicle is running, it is difficult for a passenger who cannot directly see the light to know whether the light is off.

Therefore, conventionally, for example, a light receiving section on one end of an optical fiber is placed near the light emitting position of the lamp so that the occupant can easily confirm whether the lamp is lit.

A configuration has been proposed in which the other end is connected to lighting visual recognition means of a lamp (for example, Japanese Utility Model Application Publication No. 55-41979).

(Problems to be Solved by the Invention) Incidentally, when the vehicle is a motorcycle, there are cases where the vehicle runs with a light turned on even during the daytime in order to notify other vehicles of the vehicle's presence.

In the case of item 1, since the outside is bright due to sunlight, this light may act on the light receiving part of the optical fiber, causing the lighting visual recognition means to malfunction. If such a malfunction occurs, the lighting visual confirmation means will display that the lamp is in a lit state even if the lamp is disconnected, resulting in an inconvenience that the occupant may erroneously confirm that the lamp is lit.

(Purpose of the Invention) This invention was made by paying attention to the situation described in item 1. It is designed to prevent the means for detecting the lighting of a lamp from malfunctioning due to external light, even when it is bright outside such as during the daytime. The purpose is to make it possible to confirm that the lighting of the lamp is correct.

(Structure of the Invention) A feature of the present invention for achieving the above object is that a heat sensor is provided to correspond to the /<lub number of a light fixture such as a tail light, and the output part of this heat sensor is used to turn on the light fixture. There is a point connected to the confirmation means.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes a motorcycle, and a front wheel 4 is supported at the front part of a body frame 2 via a front fork 3, and a handle 5 is attached to the upper part of the front fork 3. Further, a rear wheel 7 is supported at the rear of the vehicle body frame 2, and this rear wheel 7 is driven by an engine 8. 9 is a fuel tank, and 10 is a seat.

A headlight 12 is attached to the front fork 3, while a glossy fender 13 is attached to the rear wheel 7.
A taillight) 14 is attached to the rear end of the . Also, near the rear of the front fork 3, the sea) 10
A meter panel 18 having a tachometer 16 and a thermometer 17 is attached at a position that is easily visible to the first rider.

The above tail line) 14 is the valve 19 and this /<lub 1
The lens 21 includes a base body 20 that holds the bulb 9 via a socket 15, and a lens 21 that covers the bulb 19 and the base body 20. ” 1. The inner surface of the base 20 is mirror-treated to form a reflective surface 20.
a, and this reflecting surface 20a reflects the light from the bulb 19 toward the outside.

In the above configuration, the tail light 14 is turned on when the seat 1
A device is provided that can be verified by the lidar on the 0.

The following is a description of this device:
The first thermoelectric conversion element 23 is attached to the socket 15 so as to correspond to the
can be installed. This first thermoelectric conversion element 23
19 Detects the heat generation temperature when the light is turned on. Further, a second thermoelectric conversion element 24 is attached to the inner surface of the base body 20 at a position downwardly away from the bulb 19 . This second thermoelectric conversion element 24 detects the ambient temperature inside the tail light 14.

Each output part of the rethermal electric conversion elements 23 and 24 is connected to the lighting visual recognition means 27 of the tail light 14 via the control unit 26. The control unit 26 is composed of a differential amplifier 28, a discrimination circuit 29, and a drive circuit 30.

1. The determination circuit 29 outputs an output when the difference in temperature detected by the first thermoelectric conversion element 23 and the second thermoelectric conversion element 24 exceeds a preset value. In other words, when the ambient temperature inside the taillight 14 becomes high, this temperature is not detected and output to the drive circuit 30.

If there is an output from the discrimination circuit 29, the drive circuit 3
0 activates the lighting visual recognition means 27. This lighting visual recognition means 27 is an indicator lamp 3 provided on the meter panel 18.
2, this display lamp 32 is composed of a discrimination circuit 29
The tail light 14 is turned on via the drive circuit 30, thereby making the lighting of the taillight 14 visible.

Note that although the above is based on the illustrated example, the second thermoelectric conversion element 24
may be omitted and the lighting of the tail light 14 may be detected simply by the first thermoelectric conversion element 23. In addition to the taillight 14, the lamp may be a headlight 12, a brake light, or the like, and the vehicle may be a four-wheeled vehicle. Further, the display lamp 32 of the lighting visual recognition means 27 may be turned on when the wire is disconnected, subject to the output of each thermoelectric conversion element 23, 24.

(Effects of the Invention) According to the present invention, a heat sensor is provided to correspond to the bulb of a lamp such as a taillight, and the output part of the heat sensor is connected to the lighting visual confirmation means of the lamp, so that the lighting visual confirmation means is used to detect the lighting of the bulb. It is activated by the heat generated during the operation. Therefore, even when it is bright outside, such as during the daytime, the lighting visual confirmation means is prevented from malfunctioning due to this bright light, and it is therefore possible to correctly confirm that the lamp is lit.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which FIG. 1 is a side sectional view, FIG. 2 is an overall side view of the motorcycle, and FIG. 3 is a view taken in the direction of arrow 2 in FIG. 2. l...Motorcycle (vehicle), 14...Tail light (lamp), 19...Bulb, 23...First thermoelectric conversion element (thermal sensor), 27. Red lighting visual recognition means.

Claims (1)

[Claims] 1. A lighting confirmation device for a vehicle lamp, characterized in that a heat sensor is provided to correspond to a bulb of a lamp such as a tail light, and the output part of the heat sensor is connected to lighting visual confirmation means of the lamp.