JP2011152857A - Vehicular display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular display device which restrains a cost increase, and reduces electric power consumption of a vehicle, by reducing the number of exclusive light sources for illumination. <P>SOLUTION: Part of the light irradiated by a headlamp 101 is guided to a combination meter 2 by an optical fiber 12, and is displayed through light emission by illuminating a speedometer S by its light, and respective left-right turn signal indicators 43 and 44 provided in the combination meter 2 are displayed through light emission by this light by guiding part of the light emitted in operation of respective turn signal lamps 103 and 104 by respective optical fibers 13 and 14. Thus, a light source for illuminating the speedometer provided in a conventional vehicular display device and illuminating the left-right turn signal indicators can be eliminated. Thus, this vehicular display device restrains the cost increase and reduces the electric power consumption of the vehicle. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a display device for a vehicle that is mounted on a vehicle and displays information relating to the operating state of the vehicle so that a driver can visually recognize the vehicle.

  As a conventional vehicle display device, for example, a plurality of warning display portions are provided on a display plate that is transmissively illuminated, and a first valve for transmissively illuminating all warning display portions in common, and a location away from the warning display portion And a second bulb for transmitting and illuminating only the corresponding warning display section, and an optical fiber for guiding the light emitted from the second bulb to the corresponding warning display section (for example, see Patent Document 1). ).

  In the above-described vehicle display device, all the warning display units are commonly transmitted and illuminated by the light emitted from the first valve, and if any abnormal situation occurs on the vehicle, the warning display unit corresponding to the abnormal situation is illuminated. The second bulb is turned on, the light emitted from the second bulb is guided through the optical fiber, and only the warning display portion is transmitted and illuminated. The driver can identify a warning display unit corresponding to an abnormal situation from the plurality of warning display units.

JP 61-198191 A

  The above-described conventional vehicle display device includes a light source for transmitted illumination (for example, a bulb, a light emitting diode, etc.). Providing a dedicated light source for display panel illumination in this way increases the amount of electricity consumed by the vehicle.

  The present invention has been made against the background described above, and its object is to reduce the number of dedicated light sources for illuminating a display device for a vehicle, thereby reducing the amount of electricity consumed by the vehicle. It is to provide a display device.

  According to a first aspect of the present invention, there is provided a vehicular display device that includes a headlamp that irradiates light ahead of the vehicle, a display unit that displays an operating state of the vehicle, and a headlamp that is light emitted from the headlamp. Light guide means for guiding the part to the display means, and the display means is illuminated using the headlight guided by the light guide means.

  According to the above configuration, since the display means is transmitted and illuminated using the front light guided by the light guide means, the light source dedicated to the display means illumination provided in the conventional vehicle display device can be omitted. Therefore, a dedicated display light source for illuminating the vehicle display device is not required, and a vehicle display device that can reduce the amount of electricity consumed by the vehicle can be realized.

  According to a second aspect of the present invention, there is provided a vehicular display device for guiding a turn signal lamp that blinks when changing the traveling direction of the vehicle and a part of signal light that is light emitted from the turn signal lamp to the display means. And a second light guide means different from the light guide means, and the display means has a turn signal indicator blinkingly displayed in conjunction with the blinking operation of the turn signal lamp, and the light guide means The turn signal indicator is blinked and displayed using the signal light guided by.

  The display means of the conventional vehicle display device is provided with a dedicated light source for transmitting and illuminating the turn signal indicator, and the dedicated light source is linked to the blinking operation of the vehicle turn signal lamp when the vehicle turn signal lamp blinks. It is flashing. On the other hand, according to the vehicle display device of the second aspect of the present invention, the turn signal indicator is directly transmitted and illuminated by the light emitted from the vehicle turn signal lamp when the vehicle turn signal lamp blinks. The Therefore, a dedicated display light source for illuminating the vehicle display device is not required, and a vehicle display device that can reduce the amount of electricity consumed by the vehicle can be realized.

According to a third aspect of the present invention, there is provided a display device for a vehicle, the display means for displaying the operating state of the vehicle,
A turn signal lamp that blinks when changing the traveling direction of the vehicle, and a second light guide for guiding a part of the signal light, which is the light emitted from the turn signal lamp, to the display means and different from the light guide means Light means, and the display means has a turn signal indicator that blinks in conjunction with the blinking operation of the turn signal lamp, and blinks and displays the turn signal indicator using the signal light guided by the light guide means It is characterized by doing.

  The display means of the conventional vehicle display device is provided with a dedicated light source for transmitting and illuminating the turn signal indicator, and the dedicated light source is linked to the blinking operation of the vehicle turn signal lamp when the vehicle turn signal lamp blinks. It is flashing. On the other hand, according to the vehicle display device of the second aspect of the present invention, the turn signal indicator is directly transmitted and illuminated by the light emitted from the vehicle turn signal lamp when the vehicle turn signal lamp blinks. The Therefore, a dedicated display light source for illuminating the vehicle display device is not required, and a vehicle display device that can reduce the amount of electricity consumed by the vehicle can be realized.

  The vehicle display device according to claim 4 of the present invention is characterized in that a light coloring means is provided at the display means side end portion of the light guide means.

  Accordingly, the headlight that is the light emitted from the headlamp and the signal light that is the light emitted from the turn signal lamp can be easily changed to light of a desired color and used for illumination of the display means.

  The vehicle display device according to claim 5 of the present invention is characterized in that the light guide means includes an optical fiber.

  An optical fiber can transmit light with high efficiency and is flexible in itself. Therefore, if an optical fiber is used as the light guide means, the light emitted from the vehicle headlamp or the turn signal lamp can be guided to the display means with high efficiency. Further, regardless of the positional relationship between the vehicle headlamp or turn signal lamp and the display means, the light emitted from the vehicle headlamp or turn signal lamp can be guided to the display means with high efficiency. For example, even when the positional relationship between the headlamp or turn signal lamp of the vehicle and the display means changes during traveling of the vehicle, the relative position change between them can be absorbed.

  The vehicle display device according to claim 6 of the present invention is characterized in that the vehicle is a two-wheeled vehicle.

  In the two-wheeled vehicle, the distance between the vehicle headlamp and the turn signal lamp and the display means is short compared to the case of the automobile, and they are arranged close to each other. Therefore, it is possible to easily realize a configuration in which light emitted from the vehicle headlamp or the turn signal lamp is used for illumination of the display means. Therefore, a dedicated light source for illuminating the vehicular display device is not required, and it is possible to easily realize a vehicular display device that can suppress an increase in cost and reduce the electric power consumption of the vehicle.

1 is an external view of a motorcycle on which a combination meter 1 according to an embodiment of the present invention is mounted. It is II arrow directional view in FIG. It is a III arrow directional view in FIG. It is the IV-IV sectional view taken on the line in FIG. It is the VV sectional view taken on the line in FIG. It is sectional drawing of the modification of the combination meter 1 by one Embodiment of this invention, and is equivalent to FIG.

  Hereinafter, an embodiment of a display device for a vehicle according to the present invention will be described with reference to the drawings, taking as an example a case where the display device for a vehicle is applied to a motorcycle (motorcycle).

  A vehicle display device 1 according to an embodiment of the present invention, as shown in FIG. 2, includes a combination meter 2 as display means, a headlamp 101 that irradiates light in front of the vehicle, and a direction in which the vehicle travels. And a right turn signal lamp 103 and a left turn signal lamp 104 as turn signal lamps that are blinked by a driver's operation.

  A motorcycle 100 that is a vehicle has a general structure as shown in FIGS. 1 and 2. That is, as shown in FIG. 2, the combination meter 2 as a display means is attached to the center portion of the handlebar 102 in the width direction of the motorcycle 100. A headlamp 101 is attached to a front fork 105 that is integrally fixed to the handlebar 102 as shown in FIG. Further, as shown in FIG. 2, the handlebar 102 has a right turn signal lamp 103 as a turn signal lamp on the right side in the forward direction of the motorcycle 100 and a left turn signal lamp 104 as a turn signal lamp on the left side. Are attached to each. Since the handle bar 102 and the front fork 105 are fixed integrally, even if the driver rotates the handle bar 102 to the left or right, the relative positional relationship between the combination meter 2 and the headlamp 101 changes. Absent. Further, the relative positional relationship among the three of the combination meter 102, the right turn signal lamp 103, and the left turn signal lamp 104 is always constant and does not change.

  First, the configuration of the combination meter 2 will be described. As shown in FIG. 3, the combination meter 2 includes a speedometer S that indicates the traveling speed of the motorcycle as one of the operating states of the motorcycle 100, and left and right turn signals as one of the operating states of the motorcycle 100. A right turn signal indicator 43 and a left turn signal indicator 44 are provided to indicate that the lamp is operating.

  The speedometer S is configured as a pointer instrument that indicates the speed by the rotation angle of the pointer 6 that rotates along the surface of the dial 4.

  The dial 4 is made of a light-transmitting material, for example, a thin plate such as transparent polycarbonate. As shown in FIG. 3, the dial 4 is formed with a scale 41, letters 42 (including numbers), a right turn signal indicator 43, and a left turn signal indicator 44. The scale 41, characters 42, right turn signal indicator 43 and left turn signal indicator 44 are printed or hot stamped on the front surface (right side in FIG. 4) or back surface (left side in FIG. 4) of the dial 4. It is formed by applying. That is, a translucent colored layer is provided in a portion including the scale 41 and the character 42, and the light shielding property is provided on the outer area of the outline of the scale 41, the character 42, the right turn signal indicator 43 and the left turn signal indicator 44 from above. The process which provides a colored layer is performed. That is, the scale 41, the character 42, the right turn signal indicator 43, and the left turn signal indicator 44 are formed of a light-transmitting colored layer, and are outside the scale 41, the character 42, the right turn signal indicator 43, and the left turn signal indicator 44. The background region is formed by a light-shielding colored layer. In the combination meter 1 according to an embodiment of the present invention, the scale 41 and the characters 42 are colored translucent white, and the right turn signal indicator 43 and the left turn signal indicator 44 are colored translucent green, respectively. Yes. And the background area | region except the scale 41, the character 42, the right turn signal indicator 43, and the left turn signal indicator 44 is colored light-shielding matte black. As a result, when the dial 4 is irradiated with light from any light source from behind, that is, from the left side in FIG. 4, the scale 41 and the characters 42 are displayed in white, and the right turn signal indicator 43 and the left turn signal indicator 44. Is displayed in green.

  A circuit board 10 is arranged on the back side (left side in FIG. 2) of the dial 4. The circuit board 10 is made of, for example, a glass epoxy board or the like, and forms an electric circuit portion of the combination meter 1. As shown in FIG. 4, a movement 8 for rotating the pointer 6 is mounted on the circuit board 10. The movement 8 includes an electric actuator such as a stepping motor or a cross coil type rotating machine, and has an angle corresponding to an external electric signal (the speed signal of the motorcycle 100 in the combination meter 1 according to the embodiment of the present invention). The shaft 81 is rotated. The shaft 81 of the movement 8 extends through the through hole of the dial 4 to the surface side (right side in FIG. 4) of the dial 4, and the pointer 6 is fixed to the tip thereof. The pointer 6 is made of a translucent material such as an acrylic resin. Similarly to the case of the dial plate 4, the pointer 6 is also lit and displayed when irradiated with light from some light source from behind the dial plate 4, that is, from the left side in FIG. 4. As shown in FIG. 4, a cap 7 is attached to the center of rotation of the pointer 6. The cap 7 is for preventing the light for illuminating the pointer 6 from proceeding directly in the visual recognition direction of the driver, and is made of a light shielding material.

  The circuit board 10 on which the dial 4 and the movement 8 are mounted is housed and fixed in the casing 3 as shown in FIG. As shown in FIG. 4, a transparent windshield 17 is fixed to the opening of the casing 2 on the driver side. As shown in FIG. 4, a lower case 11 is attached to the casing 2 on the side opposite to the driver side. The front glass 17 and the lower case 11 prevent foreign substances such as moisture and dust from entering the casing 3 and keep the combination meter 1 clean.

  Next, the illumination structure of the combination meter 2 that is a feature of the vehicle display device 1 according to the embodiment of the present invention will be described. In the vehicle display device 1 according to the embodiment of the present invention, the light of the headlamp 101, the light of the right turn signal lamp 103, and the light of the left turn signal lamp 104 are used for illumination of the combination meter 2. That is, on the dial 4, the speedometer S, that is, a part of the headlight that is the light emitted from the headlamp 101 for transmitting illumination of the pointer 6, the scale 41, and the character 42, is used. A part of the signal light which is the light emitted from the right turn signal lamp 103 is used for the transmitted illumination, and a part of the signal light which is the light emitted from the light turn signal lamp 104 for the transmitted illumination of the left turn signal indicator 44 is used. Used. The specific lighting structure will be described below.

  As shown in FIG. 4, a light guide plate 5 is installed on the back side of the dial plate 4, that is, on the left side in FIG. The light guide plate 5 is made of a transparent resin material. The light guide plate 5 is for transmitting and illuminating the scale 41 and the character 42 of the dial plate 4, and is formed in an annular shape including the scale 41 and the character 42 of the dial plate 4. As shown in FIG. 4, the light guide plate 5 includes a light guide portion 51 in which a part of the outer periphery extends to the side opposite to the dial plate 4.

  As shown in FIG. 4, a light guide 9 is installed on the back side of the dial 4, that is, on the left side in FIG. 4. The light guide 9 is for transmitting and transmitting the pointer 6 and is formed of a transparent resin material. The light guide 9 is formed in a rod shape and a substantially L shape with a circular or square cross section, and one end of the light guide 9 faces the rotation center of the pointer 6 and the other end of the light guide 9 as shown in FIG. Is adjacent to the light guide 51 of the light guide plate 5 as shown in FIG.

  An optical fiber 12, which is a light guide means for guiding a part of the headlight emitted from the headlamp 101 to the combination meter 2, is installed between the combination meter 2 and the headlamp 101. The optical fiber 12 is formed of a resin material or the like and has flexibility. The end face of the optical fiber 12 on the combination meter 2 side is connected to the lower case 11 so that light can enter the light guide 51 and the light guide 9 of the light guide plate 5. On the other hand, the end face of the optical fiber 12 on the headlamp 101 side is connected to the housing 101a of the headlamp 101 so that light emitted from the bulb 101b of the headlamp 101 can enter.

  On the back side of the right turn signal indicator 43 and the left turn signal indicator 44 of the dial plate 4, that is, on the left side in FIG. 5, light guides 16 are respectively installed as shown in FIG. The light guide 16 is made of a transparent resin material. As shown in FIG. 5, the light guide 16 is accommodated in the light shielding cover 17. The light shielding cover 17 is made of a light shielding material such as resin or metal. The light shielding cover 17 prevents light outside the light shielding cover 17 from entering the light guide 16 and illuminating the corresponding turn signal indicator by the light.

  An optical fiber 13 and an optical fiber 14 which are light guide means for guiding a part of the signal light emitted from the turn signal lamp to the combination meter 2 are installed between the turn signal lamps and the combination meter 2. That is, the optical fiber 13 is installed between the right turn signal lamp 103 and the right turn signal indicator 43, and the optical fiber 14 is installed between the left turn signal lamp 104 and the left turn signal indicator 44. The optical fibers 13 and 14 are made of a resin material or the like and have flexibility. The end face of the optical fiber 13 on the combination meter 2 side is connected to the lower case 11 so that light can enter the light guide 16 corresponding to the light turn signal indicator 43, as shown in FIG. On the other hand, the end surface on the light turn signal lamp 103 side of the optical fiber 13 has a housing 103a of the light turn signal lamp 103 so that light emitted from the bulb 103b of the light turn signal lamp 103 can enter as shown in FIG. It is connected to the. Similarly, the end face of the optical fiber 14 on the combination meter 2 side is connected to the lower case 11 so that light can enter the light guide 16 corresponding to the left turn signal indicator 44, as shown in FIG. On the other hand, the end surface of the optical fiber 14 on the side of the left turn signal lamp 104 has a housing 104a of the left turn signal lamp 104 so that light emitted from the bulb 104b of the left turn signal lamp 104 can enter as shown in FIG. It is connected to the. In the illumination of each turn signal lamp of the combination meter 2, the light guide 16 and the optical fiber 13, or the light guide 16 and the optical fiber 14 each serve as a light guide.

  In the configuration as described above, when the headlamp 101 is turned on by the driver's operation, a part of the light emitted from the bulb 101b is guided to the combination meter 2 via the optical fiber 12, and further, by the light guide plate 5. Guided to the dial 4, the scale 41 and the character 42 of the dial 4 are illuminated and light-emitting displayed. In addition, the pointer 6 is illuminated and illuminated by the light guided from the optical fiber 12 to the light guide 9.

  In the configuration as described above, when the light turn signal lamp 103 blinks by the driver's operation, part of the light emitted from the bulb 103b is guided to the combination meter 2 via the optical fiber 13 and further guided. The body 16 is guided to the light turn signal indicator 43 of the dial 4, and the light turn signal indicator 43 blinks and emits light in synchronization with the blinking operation of the light turn signal lamp 103.

  In the configuration as described above, when the left turn signal lamp 104 blinks by the driver's operation, part of the light emitted by the bulb 104b is guided to the combination meter 2 via the optical fiber 14, and further guided. The body 16 leads to the left turn signal indicator 44 of the dial 4, and the left turn signal indicator 44 is flashed and displayed in synchronization with the flashing operation of the left turn signal lamp 104. That is, when the light turn signal lamp 103 is turned on, the light turn signal indicator 43 is lit and displayed, and at the same time the light turn signal lamp 103 is turned off, the light turn signal indicator 43 is turned off. Therefore, the driver can confirm that the light turn signal lamp 103 is normally blinking by looking at the blinking of the light turn signal indicator 43.

  As described above, in the vehicle display device 1 according to the embodiment of the present invention, a part of the headlight irradiated by the headlight 101 is guided to the combination meter 2 by the optical fiber 12, and the speedometer S is illuminated by the light. Is displayed. Thereby, the light source for illuminating the display means with which the conventional vehicular display device is provided can be omitted. Therefore, a vehicle display device that can reduce the power consumption of the vehicle can be realized.

  Furthermore, in the vehicle display device 1 according to the embodiment of the present invention, the light turn signal indicator 43 provided in the combination meter 2 is used to display part of the light emitted by the light turn signal lamp 103 while the light turn signal lamp 103 is operating. The left turn signal indicator 44 provided in the combination meter 2 is guided by the optical fiber 13 to emit light, and the left turn signal lamp 104 is partially irradiated with the left turn signal lamp 104 while the left turn signal lamp 104 is in operation. The light is emitted and displayed by this light. Thereby, the light source for illuminating the left and right turn signal indicator provided in the conventional vehicle display device can be omitted. Therefore, a vehicle display device that can reduce the power consumption of the vehicle can be realized.

  Further, in the vehicle display device 1 according to the embodiment of the present invention, light is used as a light guide means for guiding a part of the signal light emitted from the headlamp 101, the right turn signal lamp 103, and the left turn signal lamp 104 to the combination meter 2. Fibers 12, 13, and 14 are used. An optical fiber can transmit light with high efficiency and is flexible in itself. Therefore, by using an optical fiber as the light guide means, the light emitted from each lamp can be guided to the combination meter 2 with high efficiency, and the emission luminance of the combination meter 2 can be increased and the visibility can be improved. Further, since the optical fiber is flexible, the light emitted by each lamp can be easily guided to the combination meter 2 regardless of the positional relationship between each lamp of the vehicle and the combination meter 2. The degree of freedom in layout design can be increased. Furthermore, even when the positional relationship between each lamp of the vehicle and the combination meter 2 changes during operation of the vehicle, the light emitted from each lamp is guided to the combination meter 2 with high efficiency, and the light emitted from the combination meter 2 is emitted. Brightness can be increased and visibility can be improved.

  FIG. 6 shows a cross-sectional view of a modification of the vehicle display device 1 according to an embodiment of the present invention. FIG. 6 corresponds to FIG.

  In this modification, as shown in FIG. 6, a color filter 18 as a light coloring means is attached to the tip of the optical fiber 12 on the combination meter 2 side. The color filter 18 is formed by mixing dye particles in a transparent resin, or applying a light-transmitting colored layer on the surface of the transparent resin. Although the light emission color of the bulb 101b of the headlamp 101 is generally close to white, by attaching the color filter 18, the illumination color of the speedometer S, that is, the light emission color can be set to a desired color.

In the vehicle display device 1 according to the embodiment of the present invention described above, the speedometer S is used as a display means for instructing the operating state of the motorcycle 100 that is lit and displayed using the light emitted from the headlamp 101. As an example, instruments other than the speedometer S, for example, an engine tachometer, a clock, a fuel gauge, etc. may be added or replaced. Moreover,
Further, as a display unit that guides the light emitted from the headlamp 101 to the combination meter 2 and displays the light emission, it may be applied to a high beam indicator that displays that the headlamp 101 is in the upper beam irradiation state. In this case, the amount of light guided to the combination meter 2 when the headlamp 101 is in the low beam irradiation state is smaller than the amount of light guided to the combination meter 2 when the headlamp 101 is in the high beam irradiation state. Therefore, if the headlamp 101 is switched to the high beam irradiation state when the headlamp 101 is in the low beam irradiation state, the light emission luminance of the high beam indicator in the combination meter 2 is remarkably increased. It can be recognized that the lighting 101 is switched to the high beam state and is in the high beam irradiation state.

  Further, the vehicle display device 1 according to the embodiment of the present invention described above is applied to a motorcycle as an example, but the application target is not limited to a motorcycle, and other types of vehicles are used. For example, it may be a motorbike.

DESCRIPTION OF SYMBOLS 1 Display apparatus for vehicles 2 Combination meter (display means)
3 Casing 4 Dial 41 Scale 42 Character 43 Light turn signal indicator (indicator)
44 Left turn signal indicator (indicator)
DESCRIPTION OF SYMBOLS 5 Light guide plate 6 Pointer 7 Cap 8 Movement 81 Shaft 9 Light guide 10 Circuit board 11 Lower case 12 Optical fiber 13 Optical fiber (2nd light guide means)
14 Optical fiber (second light guiding means)
15 front glass 16 light guide 17 light shielding cover 18 color filter (light coloring means)
100 Motorcycle (vehicle)
101 headlight 101a housing 101b bulb 101c lens 102 handle 103 light turn signal lamp (turn signal lamp)
103a housing 103b bulb 103c lens 104 left turn signal lamp (turn signal lamp)
104a housing 104b valve 104c lens S speedometer (display means)

Claims (6)

A headlamp that emits light in front of the vehicle;
Display means for displaying the operating state of the vehicle;
A light guide means for guiding a part of the headlight, which is light emitted from the headlamp, to the display means,
A display device for a vehicle, wherein the display means is illuminated using the headlight guided by the light guide means. A turn signal lamp that flashes when changing the direction of travel of the vehicle,
A second light guide means for guiding a part of the signal light, which is light emitted from the turn signal lamp, to the display means and different from the light guide means,
The display means has a turn signal indicator that blinks in conjunction with the blinking operation of the turn signal lamp,
The vehicle display device according to claim 1, wherein the turn signal indicator is blinked and displayed using the signal light guided by the light guide unit. Display means for displaying the operating state of the vehicle;
A turn signal lamp that flashes when changing the direction of travel of the vehicle,
A second light guide means for guiding a part of the signal light, which is light emitted from the turn signal lamp, to the display means and different from the light guide means,
The display means has a turn signal indicator that blinks in conjunction with the blinking operation of the turn signal lamp,
The vehicle display device characterized in that the turn signal indicator is blinked and displayed using the signal light guided by the light guiding means.   The vehicle display device according to any one of claims 1 to 3, wherein a light coloring means is provided at an end of the light guide means on the display means side.   The vehicular display device according to any one of claims 1 to 4, wherein the light guide means includes an optical fiber.   The vehicle display device according to any one of claims 1 to 5, wherein the vehicle is a two-wheeled vehicle.

Images