JP4932561B2 - Vehicle dial and vehicle display device - Google Patents

Description

  The present invention relates to a vehicular dial that displays a measurement amount in cooperation with a pointer disposed on the front side, and a vehicular display device having the vehicular dial.

  In general, as shown in FIG. 7, the vehicle includes a combination meter 100 having a plurality of (four in FIG. 7) vehicle display devices 110 that display measured values such as vehicle speed, engine speed, fuel remaining amount, temperature, and the like. Is installed. The combination meter 100 accommodates a plurality of vehicle display devices 110, a warning 102, a shift indicator 103, and a turn 104 covering the edge of the vehicle display device 110 in a case 105 and covers it with a front glass 106. Thus, the pointer 112 and the like of the vehicle display device 110 are protected. The combination meter 100 is attached to the vehicle by a plurality of attachment portions 107 provided on the case 105.

  As shown in FIGS. 7 and 8, the vehicular display device 110 includes a dial plate 111 on the surface of which a scale 111 and an index 111 b such as numerals, characters or symbols are provided, and a pointer disposed on the front surface of the dial plate 111. 112, an internal unit 113 that drives the pointer 112 according to the measurement amount, a wiring board 114 on which a circuit pattern is provided and the internal unit 113 is fixed, a plurality of light sources 115 provided on the wiring board 114, and a case 105 A reflection surface 116 that is provided toward the wiring board 114 and reflects the light of the light source 115, and a back cover 117. The light from the light source 115 is reflected by the reflecting surface 116 and the like, and the light is guided to the dial plate 111 and the pointer 112, thereby causing the indicator 111b of the dial plate 111 and the instruction unit 112a of the pointer 112 to emit light.

The vehicle display device 110 that displays the vehicle speed and the engine rotation in FIG. 7 has improved the visibility and decorativeness by providing a decorative ring 118 provided around the indicator 111b of the dial 111. It was. In addition, in the vehicular pointer instrument shown in Patent Document 1, in order to obtain an attractive and novel visibility, display is performed by performing light-emitting display using a reflection portion of a light guide disposed on a dial. A three-dimensional feeling was given.
JP 2003-302262 A

  However, in the case of a vehicle display device mounted on a vehicle, as a method for differentiating each vehicle type (cars with different price ranges), it is necessary to distinguish between display design and novelty. In this structure, only a certain novelty was obtained, and it was necessary to provide a display form having a novelty. Therefore, it has been necessary to intensively study whether or not the dial can be visually recognized, but there is a problem that the structure of the dial cannot be complicated and the cost cannot be increased.

  Therefore, in view of the above-described problems, an object of the present invention is to provide a vehicular dial and a vehicular display device that can obtain a novel visual recognition effect.

  In order to solve the above-mentioned problems, the vehicular dial according to claim 1 made in accordance with the present invention is used in a vehicle display device mounted on a vehicle and cooperates with a pointer disposed on the front side to measure a measurement amount. In the vehicular dial to be displayed, the dial cloth provided with an indicator for displaying the measured amount, and the incident light provided on at least one surface of the dial cloth and incident from the front side is reflected and reflected. And the dial cloth has an inclined part that inclines the incident light incident on the spectral part so that the chromaticity changes with respect to a viewing angle from a user. To do.

  According to the vehicular dial according to the first aspect of the present invention, the spectroscopic portion provided on the dial cloth spectrally reflects incident light from the front side so that a plurality of interference wavelengths are generated. To do. And since the dial cloth has an inclined portion, the spectroscopic portion formed on the inclined portion has a viewing angle angle from the user that varies depending on the location, so that the light having a wavelength corresponding to the viewing angle angle is visually recognized. Can do. That is, the chromaticity can be changed according to the viewing angle.

  The invention according to claim 2, which has been made to solve the above-mentioned problems, is that in the vehicular dial according to claim 1, the spectroscopic portion is formed by printing with ink containing reflective particles. Features.

  According to the vehicular dial of the present invention described in claim 2, the spectroscopic portion can be formed on the dial cloth by printing with ink containing reflective particles such as aluminum powder.

  The invention according to claim 3, which has been made in order to solve the above-mentioned problem, is the vehicle dial according to claim 1 or 2, and is interposed between the spectroscopic portion made of a translucent member and the dial fabric. And having a reflection layer that reflects the light transmitted through the spectroscopic portion to the front surface side.

  According to the vehicular dial plate of the present invention described in the third aspect, the light transmitted through the light-transmitting spectroscopic portion can be reflected toward the front side by the reflective layer.

  The vehicle display device according to claim 4, which is made according to the present invention to solve the above-described problems, is the vehicle dial plate 2 according to any one of claims 1 to 3, and the front surface of the vehicle dial plate 2. And a pointer 3 that displays a measurement amount in cooperation with the indicator portion S of the vehicular dial 2, the pointer 3 is an inclined surface of the dial fabric 21. It has an instruction part 31 that is formed so as to have a cross-sectional shape that matches the cross-sectional shape of 21a and that points to the indicator part S.

  According to the vehicle display device of the present invention described in claim 4, the spectroscopic part of the vehicular dial plate spectroscopically reflects incident light from the front side so that a plurality of interference wavelengths are generated, The measured amount of the vehicle can be displayed by cooperating the indicator and the pointer of the vehicular dial visually recognized by the user by changing the chromaticity according to the viewing angle. In addition, the pointer can be rotated according to the measurement amount so that the instruction unit follows the inclined portion of the vehicle display device. In addition, if a self-light emitting indicator that emits light with light guided in the indicator is used as a guide, an interference wavelength can be generated by light leaking from the indicator to the spectroscopic part of the vehicular dial.

  As described above, according to the vehicular dial according to the first aspect of the present invention, since the spectroscopic portion is formed on the dial cloth having the inclined portion, the spectroscopic portion has a viewing angle angle from the user. Therefore, the chromaticity can be continuously changed and visually recognized by the spectral effect corresponding to the viewing angle. In addition, it is only necessary to form an inclined portion from the rotation center of the pointer toward the edge portion on the dial cloth, and to form a spectroscopic portion there, so that the structure is prevented from becoming complicated and different colors from the same eye point. The vehicular dial 2 can be visually recognized. Therefore, since the user can visually recognize the surface of the vehicular dial with a different color depending on the viewing direction, a novel visual recognition effect can be obtained.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the spectroscopic portion is formed on the dial cloth by printing with ink containing reflective particles. Thus, a novel and excellent color change effect can be obtained.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the light transmitted through the light-transmitting spectroscopic portion is reflected toward the front side by the reflective layer. Therefore, since the light reflected by the reflective layer can be dispersed by the spectroscopic unit, the chromaticity of the light can be further changed, and thus a further novel color change effect can be obtained.

  As described above, according to the vehicle display device of the present invention described in claim 4, since the vehicle display device in which the spectral portion is formed on the dial cloth having the inclined portion is used, the spectral portion is used. Since the viewing angle angle from the person varies depending on the viewing position of the vehicular dial, the chromaticity can be continuously changed by the spectral effect corresponding to the viewing angle angle. Therefore, a novel and innovative decoration effect can be obtained by combining the vehicular dial and the pointers that allow the user to visually recognize the surface of the vehicular dial in different colors depending on the viewing direction. In addition, since the pointer is rotated according to the measurement amount so that the indicator portion of the pointer follows the inclined portion of the vehicular dial, even if the inclined portion is provided on the vehicular dial, the surface index Since the distance between the part and the indicating part of the pointer is not separated, it is possible to prevent a decrease in visibility.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of a vehicular dial and a vehicular display device according to the invention will be described with reference to the drawings of FIGS.

  1 to 5, a vehicle display device 1 mounted on a vehicle corresponds to a vehicle dial 2 corresponding to a speedometer, a pointer 3 provided on the front side of the vehicle dial 2, and a measurement amount. An internal unit 4 for driving the pointer 3, a wiring board 5 provided with a circuit pattern and to which the internal unit 4 is fixed, a plurality of light sources 6 provided on the wiring board 5, and an edge of the vehicular dial 2 , A front glass 8 that protects the vehicular dial 2, the pointer 3 and the like, and a pointer light source 15 provided on the wiring board 5 for causing the pointer 3 to emit light.

  In the best mode, for the sake of simplification of description, a case where the vehicle display device 1 and the vehicle dial 2 of the present invention are applied to a speedometer will be described, but the invention is not limited to this. In addition, the present invention can be applied to various instruments having the same basic configuration such as a tachometer, a water temperature gauge, and a fuel gauge mounted on a vehicle.

  As shown in FIG. 4, the vehicular dial 2 is provided on the surface of the dial dough 21, a design dial 22 provided on the back surface of the dial dough 21, and the dial dough 21. A spectroscopic unit 23 and a protective unit 24 stacked on the spectroscopic unit 23 are included.

  The dial fabric 21 is formed in a plate shape with a light-transmitting synthetic resin such as polycarbonate, and has a substantially circular shape corresponding to each meter. The dial fabric 21 transmits light from the light source 6 toward the front surface of the vehicular dial 2.

  The design portion 22 includes a light shielding layer 22a from which portions corresponding to the index S such as numerals and scales are removed, and a transmissive colored layer 22b laminated on the light shielding layer 22a. The light shielding layer 22a is provided on the back surface of the dial fabric 21 by printing a non-translucent member such as black. The colored layer 22b is provided by printing a translucent member such as white so as to cover the light shielding layer 22a. When the light from the light source 6 is incident on the colored layer 22b, the design portion 22 thus formed is emitted from the portion of the index portion S where the light shielding layer 22a is not applied to the dial fabric 21. As a result, the user visually recognizes and emits the indicator portion S with the color of the colored layer 22 b by the light transmitted through the dial fabric 21.

  The spectroscopic unit 23 is integrally formed by sequentially laminating a semi-transmissive metal layer 23a, a similar glass layer 23b, a reflective layer 23c, a spectroscopic layer 23d, and a color pigment layer 23e. The spectroscopic unit 23 is formed by polarizing ink printing or the like.

  The semi-transmissive metal layer 23 a is laminated on the dial fabric 21. The similar glass layer 23b is laminated on the semi-transmissive metal layer 23a.

  The reflective layer 23c is laminated on the similar glass layer 23b, and is formed so as to reflect the light incident from the front side of the vehicular dial 2 toward the front side.

  The spectral layer 23d is provided so as to cover the front surface of the dial fabric 21, and is formed of, for example, an ink containing reflective particles so as to spectrally reflect incident light incident on the front surface. Yes. The spectral layer 23d configured in this manner is visualized by generating an interference wavelength (a wavelength of a predetermined color) due to a spectral effect. That is, if the incident angle is different, the generated wavelength is changed, and the user can visually recognize different colors. Therefore, since the spectroscopic portion 23 is formed on the dial cloth by printing with ink containing reflective particles, a novel and excellent color change effect can be obtained by the printing structure.

  In the best mode, the spectral layer 23d is formed so as to generate a wavelength corresponding to green to blue-green in visible light. Specifically, as shown in FIGS. 1 and 5, in the case of a viewing angle θ1 toward the user's eye point E with respect to the incident light L incident on the spectral layer 23d (vehicle dial 2), the eye point E The light having the spectral wavelength λ1 corresponding to green is directed to (see FIG. 5A), and when the viewing angle angle θ2 is larger than the viewing angle angle θ1, the eyepoint E has the spectral wavelength λ2 corresponding to blue-green. The spectral layer 23d is formed so that the light travels (see FIG. 5B). As described above, the spectral layer 23d is configured to split the wavelength of any color of the incident light L that is desired to be visually recognized by the user.

  The colored pigment layer 23e is laminated on the spectral layer 23d, and about 50% of the light incident from the front side of the vehicular dial 2 is reflected on the front side by the surface, and the remaining about 50% is the spectral layer 23d. And is reflected toward the front side by the reflective layer 23c.

  As shown in FIG. 4, the protective part 24 is formed as a hard coat by a transparent clear coating with a fluororesin or the like, and improves the water repellency and weather resistance of the vehicular dial 2. The protection unit 24 can be deleted from the configuration of the vehicular dial 2.

  In order to make use of the spectral effect dispersed by the spectral layer 23d configured as described above, the dial fabric 21 described above has an inclined portion 21a. As shown in FIGS. 1 and 3, the inclined portion 21 a is formed so as to be inclined from the rotation center of the pointer 3 toward the edge portion, so that the vehicular dial 2 has a convex shape. Specifically, since the viewing angle angles θ1 and θ2 are respectively at points A and B on the vehicular dial 2, the point A is visually recognized in green from the eye point E, and the point B is visually recognized in blue-green. become.

  In the best mode, the case where the vehicular dial 2 has a convex shape will be described. However, the present invention is not limited to this, and if the viewing angle angle from the eye point E can be changed, for example, Various shapes such as a concave shape, a concave and convex shape, and a substantially staircase shape can be used.

  As shown in FIGS. 1 to 3, the pointer 3 includes a pointer main body 33 including an instruction portion 31 and a base portion 32, and a pointer cap 34 made of an opaque resin material such as black covering the base portion 32, the balance member 34a, and the like. And have. The pointer main body 33 is rotated by the drive shaft 41 by being fixed to the inner unit 4 via the pointer rod 35. The pointer main body 33 is formed of a transparent acrylic resin, and guides the light from the pointer light source 15 in the interior thereof, thereby causing the instruction unit 31 to emit light.

  The indicator 31 is formed to have a cross-sectional shape that matches the cross-sectional shape of the inclined surface 21 a of the dial fabric 21. Specifically, the tip portion is formed in an arc shape so as to descend from the base portion 32 toward the vehicular dial 2. Therefore, since the pointer 3 is rotated in accordance with the measurement amount so that the indicator portion of the pointer 3 follows the inclined portion 21a of the vehicle dial 2, the inclined portion 21a is provided on the vehicle dial 2. However, since the space | interval of the indicator part S of the surface and the instruction | indication part 31 of the pointer | guide 3 does not leave | separate, the fall of visibility can be prevented.

  As shown in FIG. 6, reflection surfaces 33a1, 33a2, 33a3, and 33a4 are formed at the connecting portion between the instruction portion 31 and the base portion 32. The reflection surface 33a1 reflects the light guided in the base portion 32 toward the upper end surface and the lower end surface of the indication unit 31 (reflection light L1, L2), and reflects toward the reflection surface 33a2 (reflection light L3). .

  The reflecting surface 33a2 reflects the reflected light L3 from the center of the indicating unit 31 toward the bottom bottom surface of the indicating unit 31 near the base 32. The reflecting surface 33a4 reflects the light guided through the base 32 to the reflecting surface 33a3. The reflection surface 33a3 reflects the light from the reflection surface 33a4 toward the root upper surface of the instruction unit 31 near the base 32 from the reflection surface 33a2. A diffusion layer 36 is formed on the lower surface of the instruction unit 31 by, for example, embossing. The diffusion layer 36 diffuses light from the instruction unit 31 toward the vehicular dial 2 and reflects it into the instruction unit 31. To do.

  By forming the pointer main body 33 in this way, the light from the light source 15 taken in by the base 32 can be uniformly guided to the tip of the instruction unit 31. That is, the pointer 3 is a self-luminous pointer that the indicator 31 emits light by guiding the light from the light source 15 into the indicator 31.

  As the internal unit 4, a well-known stepper motor, cross coil movement, or the like is used, and the pointer 3 is driven according to the measurement amount. On the wiring board 5, the light source 6, the internal unit 4, and the pointer light source 15 are mounted, and power is supplied to them. The light source 6 and the pointer light source 15 use LEDs, bulbs, and the like, and are turned on and off by a control unit (not shown) provided on the wiring board 5.

  The drive shaft 41 and the pointer light source 15 of the inner unit 4 are accommodated in a cylindrical case member 90. The case member 90 is provided so as to stand up from the wiring board 5, and the light from the pointer light source 15 is guided toward the base portion 32 of the pointer 3 through the inside thereof. A light shielding wall 91 is formed on the outer wall of the case member 90 to prevent direct light from the light source 6 from going toward the through hole of the vehicular dial 2 that is the center of rotation of the pointer 3. The light shielding wall 91 irregularly reflects light from the light source 6 and guides the irregularly reflected light to the indicator portion S.

  In the case 70, the tapered surface which is the surface of the tapered portion 71 is a reflecting surface, and reflects the light emitted from the light source 6 toward the vehicular dial 2. The case 70 has a light amount adjusting portion 72 that is provided on the tapered portion 71 so as to face the indicator portion S of the vehicular dial 2 and protrudes toward the vehicular dial 2. The light amount adjusting unit 72 diffuses the light from the light source 6 on the protruding reflecting surface, thereby directing a sufficient amount of light to all the index portions S. The back cover 80 is assembled to the case 70 so as to cover the back of the wiring board 5.

  The front glass 9 is formed of a translucent member, and is assembled to the case 70 via the turn-back 7. The front glass 9 transmits the light transmitted through the indicator portion S of the vehicular dial 2 and emits the light toward the user.

Next, an example of manufacturing the vehicular dial 2 according to the present invention having the above-described configuration will be described below.
First, a design portion 22 including a light shielding portion 22a and a colored layer 22b is formed on the back side of the dial fabric 21 so that the indicator portion S is removed, and the above-described spectroscopic portion 23 is formed on the front side of the dial fabric 21. Is formed by polarizing ink printing or the like, and a protective portion 24 is formed on the surface of the spectroscopic portion 23. In addition, the manufacturing order of the design part 22 and the spectroscopic part 23 with respect to the dial fabric 21 can be arbitrarily determined.

  Next, an example of the operation (action) of the above-described vehicular dial 2 and the vehicular display device 1 according to the present invention will be described.

  When the plurality of light sources 6 are turned on by control from a control unit (not shown), the light is reflected directly or by the taper portion 71 of the case 70 and enters the vehicular dial 2. And the light which went to the parameter | index part S of the vehicle dial 2 among the light is radiated | emitted visually by the user etc. by being radiate | emitted from the parameter | index part S to the front side of the vehicle dial 2. FIG. Further, when the pointer light source 15 is turned on, the light is received by the base 32 of the pointer 3 and guided through the inside, and then guided through the pointing unit 31 toward the tip, thereby The indicator 31 is visually recognized from the point E.

  The spectroscopic unit 23 of the vehicular dial 2 spectrally reflects and reflects the incident light L from the front side so that a plurality of interference wavelengths λ1, λ2, etc. are generated. And since the dial fabric 21 has the inclined portion 21a, the viewing angle angle from the eye point E changes depending on the location of the inclined portion 21, as shown in FIGS. At point A on the vehicular dial 2, green light having a spectral wavelength λ <b> 1 is directed to the eye point E as shown in FIG. At point B, as shown in FIG. 5B, blue-green light having a spectral wavelength λ2 is directed to the eye point E.

  As shown in FIG. 1, the cross section of the point A and the point B has an arc shape, so that the viewing angle angle from the eye point E at that portion also changes continuously, and the spectral wavelength also changes. It will change continuously. As a result, the points A to B are visually recognized from the eye point E so as to gradually change from green to blue-green.

  According to the vehicular dial 2 of the present invention described above, since the spectroscopic portion 23 is formed on the dial fabric 21 having the inclined portion 21a, the spectroscopic portion 23 has a viewing angle angle from the user depending on the location. Since they are different, the chromaticity can be continuously changed and visually recognized by the spectral effect corresponding to the viewing angle. In addition, since it is only necessary to form the inclined portion 21a from the rotation center of the pointer 3 toward the edge on the dial cloth 2 and to form the spectroscopic portion there, the structure is prevented from becoming complicated and the same eye point is used. The vehicular dial 2 can be visually recognized with different colors. Therefore, since the user can visually recognize the surface of the vehicular dial 2 with a different color depending on the viewing direction, a novel visual recognition effect can be obtained.

  In addition, since the light transmitted through the light-transmitting spectral layer 23b is reflected toward the front side by the reflective layer 23c, the light reflected by the reflective layer 23c can be dispersed by the spectroscopic unit 23. Since the chromaticity of light can be changed more, a more novel color change effect can be obtained.

  Further, according to the vehicle display device 1 of the present invention, since the vehicle display device 1 in which the spectroscopic portion 23 is formed on the dial fabric 21 having the inclined portion 21a is used, the spectroscopic portion 23 is received from the user. Since the viewing angle varies depending on the location of the vehicular dial 2, the chromaticity can be continuously changed and visually recognized by the spectral effect corresponding to the viewing angle. Therefore, a novel and novel decoration effect can be obtained by combining the vehicular dial 2 and the hands 3 that allow the user to visually recognize the surface of the vehicular dial 2 in different colors depending on the viewing direction.

  As described above, the above-described embodiments are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention.

It is a section perspective view which a part of display device for vehicles which has a dial for vehicles of the present invention fractured. It is a front view of the display apparatus for vehicles in FIG. It is sectional drawing of the display apparatus for vehicles in FIG. It is a cross-sectional schematic diagram for demonstrating the structure of the dial for vehicles of this invention. It is a figure for demonstrating the spectral effect in the spectroscopy part of the dial for vehicles, (a) shows the case of viewing angle angle theta 1, and (b) shows the case of viewing angle angle theta 2, respectively. It is a fragmentary sectional view for demonstrating the reflection structure of the pointer | guide of a vehicle display apparatus. It is a front view of the conventional combination meter. It is sectional drawing of the display apparatus for vehicles in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display apparatus for vehicles 2 Dial for vehicles 3 Pointer 21 Dial material 21a Inclined part 22 Design part 23 Spectroscopic part 23a Semi-transmissive metal layer 23b Condensed glass layer 23c Reflective layer 23d Spectroscopic layer 23e Color pigment layer L Incident light S Indicator Part θ1, θ2 Viewing angle

Claims (4)

In a vehicular dial plate that is used in a vehicle display device mounted on a vehicle and displays a measurement amount in cooperation with a pointer disposed on the front side,
A dial cloth provided with an indicator S for displaying the measured amount;
A spectroscopic unit that is provided on at least one surface of the dial fabric and that reflects and reflects incident light incident from the front side;
Have
The vehicular dial according to claim 1, wherein the dial fabric has an inclined portion that inclines the incident light incident on the spectroscopic portion so that chromaticity changes with respect to a viewing angle angle from a user.   The vehicular dial according to claim 1, wherein the spectroscopic portion is formed by printing with ink containing reflective particles.   3. The method according to claim 1, further comprising a reflective layer that is interposed between the spectroscopic portion made of a translucent member and the dial material and reflects light transmitted through the spectroscopic portion to the front side. The vehicle dial described. The dial for a vehicle according to any one of claims 1 to 3, and a pointer disposed on a front side of the dial for a vehicle and displaying a measurement amount in cooperation with an indicator portion of the dial for the vehicle In a vehicle display device having:
The vehicular display device, wherein the pointer has a pointing portion that is formed so as to have a cross-sectional shape that matches a cross-sectional shape of the inclined surface of the dial cloth and that indicates the indicator portion.

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