JP5211565B2 - Vehicle instrument - Google Patents

Description

  The present invention relates to a vehicle instrument.

  Conventionally, as a vehicle instrument, for example, glass (hereinafter referred to as a transparent cover), a facing plate, a pointer, a dial, a case, a circuit board, an internal unit (motor) as a movement, and a rear case (back case) are included. Is known (see Patent Document 1).

In the conventional vehicle instrument, the transparent cover that covers the instrument from the surface, prevents the entry of foreign matter from the outside while ensuring the visibility of the driver of the vehicle, and hides the internal structure of the instrument in the driver's field of view The dial plate and the dial for displaying an index or the like for instructing the physical quantity to the driver are formed as independent components as basic components.
JP 2003-222539 A

  In the prior art, it is considered that the basic configuration has not changed from the past, and is configured with a minimum number of members. That is, in the basic configuration of the prior art, the transparent cover, the facing plate, and the dial plate are necessarily arranged as independent members.

  However, in recent years, there has been a demand for further cost reduction in vehicular instruments in the midst of intense competition of vehicle prices worldwide. The inventor believes that such a request cannot be satisfied in the first place by following the conventional basic configuration.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a vehicle meter capable of reducing the number of members related to the basic configuration by devising a basic configuration such as a dial. There is.

  In order to achieve the above object, the present invention comprises the following technical means.

That is, according to the first aspect of the present invention, there is provided a dial that displays an index, a pointer that rotates along the dial, a light source that is disposed on the rear surface side of the dial, and transmits and illuminates the dial, and a light source. A circuit board to be mounted, a light receiving window portion that is disposed between the dial plate and the circuit board, receives light from the light source, directly irradiates the dial with light from the light source through the light receiving window portion, and A vehicular instrument comprising a reflector that reflects light traveling in a direction away from the dial toward the dial, the dial being made of a translucent member and displaying at least one of the front and rear surfaces of the dial In the above, the inside of the rear side of the dial is visually recognized except for the indicator portion where the indicator indicated by the pointer is formed and the transmission portion formed along the rotation area where the pointer rotates except for the indicator portion. A concealing part for concealing from the indicator part and the concealing part. The part is formed integrally with the display surface, the concealing part is concealed with a light-shielding colored layer or a metal layer, the indicator part is formed with a light-transmitting colored layer, and the pointer is arranged on the rear side of the dial. The reflecting plate is formed integrally with the casing of the vehicle instrument, is disposed along the turning area of the pointer, and the pointer is sandwiched between the reflecting plate and the transmission portion.

  In such an invention, the indicator portion where the indicator indicated by the pointer is formed and the concealing portion for concealing the inside of the rear side of the dial from the viewing range are displayed on at least one of the front and rear surfaces of the dial Since it is integrally formed on the surface, it is possible to form a dial plate that displays an indicator as in the prior art and a dial plate that hides the internal structure within the driver's visual recognition range with a dial that is one member.

  In addition, since the dial is a translucent member and forms a transmissive portion in a rotating region where the pointer rotates, the transmissive portion only needs to expose the translucent member. Therefore, the transparent cover of the prior art is not necessary.

In the first aspect of the present invention, the concealing portion is formed on at least one of the front and rear display surfaces of the dial. The concealing portion is formed of, for example, a black resin material or metal. Since a light-shielding colored layer or a metal layer formed of a metal vapor-deposited film is used, a concealing portion is arranged on the dial plate as compared with the space of the vehicle instrument for arranging the dial plate and the dial plate in the prior art. Space can be reduced in thickness. As a result, the vehicle instrument can be reduced in thickness, and the inside of the rear side of the dial can be effectively concealed from the viewing range of the driver of the vehicle.

  Further, in the invention according to claim 1, the indicator portion is arranged on the dial in comparison with the surrounding background other than the indicator portion, that is, the concealing portion. As the indicator portion, for example, a white color made of a transparent resin material or the like is used. Since the transparent colored layers such as orange and green are provided, it is possible to make the indicator portion stand out compared to the concealment portion only for concealing the viewing range. For example, by applying light from a light source such as a light emitting diode from the rear side of the dial plate, the visibility of the indicator portion viewed by the driver with the concealment portion as a reference can be improved.

  In the invention described in claim 1, the pointer is arranged on the rear surface side of the transmission portion of the dial. In such an arrangement relationship between the dial and the pointer, there is no need to provide an insertion hole for inserting the support shaft of the pointer as in the case where the pointer of the prior art is arranged on the front side of the dial. It is possible to suppress the formation of holes in the dial that communicate with the inside and outside of the dial.

  Here, there is a vehicle instrument that displays an object to be visually recognized with transmitted illumination. In such an instrument for a vehicle, the indicator part and the pointer of the dial plate are made of a transparent material, and the pointer part and the pointer to be visually recognized are transmitted and illuminated by a light source such as a light emitting diode provided separately. In such a configuration, since it is essential to provide at least the indicator light source and the pointer light source, the number of light sources may inevitably increase. On the other hand, in the invention according to claim 1, the light source for transmitting and illuminating the dial is light that directly irradiates the dial in a space defined by the circuit board on which the light source is mounted and the dial. A light that cannot be directly irradiated, such as this light, is provided with a reflecting plate that reflects the light from the light source toward the dial, and the reflecting plate is integrally formed with the casing of the vehicle instrument. . Thereby, in order to suppress the increase in the number of light sources, the light from the light source is configured to be effectively radiated to the object to be viewed with direct light and reflected light, and an increase in the number of parts due to the means is prevented. .

  In the first aspect of the present invention, the pointer is sandwiched between the transmitting portion of the dial and the reflecting plate arranged along the rotation region of the dial, so that the direct light from the light source and the reflection by the reflecting plate Light is irradiated toward the pointer and the transmission part. Thereby, it is possible to make the pointer and the transmission part stand out in contrast to the concealment part by irradiation of direct light and reflected light from the light source. For example, a pointer that can be seen through the transmissive portion has a smaller amount of transmitted light than the transmitted light in the transmissive portion around the pointer and becomes a shadow. It is possible to give the driver who sees the pointer and the transmissive portion illuminated by illumination a novel appearance that makes the pointer appear as a shadow based on the brightness of the transmitted light around the pointer. Such a transmission part and a pointer | guide can be made to stand out in contrast with a concealment part.

According to a second aspect of the present invention, the dial is the transparent or colored translucent member, and the transmissive portion has the translucent member exposed.

  In this invention, although the transmissive part exposes the translucent member that is the base of the dial, the translucent member can be formed in transparent or colored that is easily visible. Thereby, it is possible to display clearly the visual recognition object in the inside of the rear surface side of a transmission part with respect to the driver | operator who sees a transmission part.

In particular, as in the third aspect of the present invention, it is preferable that a part on the indicator side of the pointer is displayed in the transmission portion formed in the rotation region.

  In such an invention, the pointer is rotatably disposed along the rear surface side of the transmission part, but the range that can be visually recognized by the driver through the transmission part of the dial is the index side of the pointer. It can be limited to a part of. Thereby, it is possible to effectively conceal the internal structure to be concealed other than the visual target from the visual range while allowing the driver to visually recognize the visual target pointer.

  Here, the internal components of the vehicle meter include electronic components such as a movement mounted on the back side of the circuit board of the vehicle meter and a connector for performing input / output with the outside. During the transportation of the vehicle instrument (the transportation period for transporting from the vehicle instrument manufacturing process to the vehicle assembly factory and the period before assembly until the assembly to the vehicle), the above electronic components can be touched directly or outside the vehicle instrument In order to avoid interference with these parts, there are some which provide a protective cover on the back side of the casing of the vehicle instrument.

On the other hand, in the invention according to claim 4 , the casing has an opening for inserting and installing the circuit board, and the opening is the opening in the state where the circuit board is inserted and installed in the casing. height extends to the mounting direction of the circuit board in the, that is formed above the electronic components mounted on the circuit board.

  In this invention, the electronic component mounted on the circuit board is accommodated in the casing of the vehicle instrument by inserting and installing the circuit board in the casing. Since the height of the casing to be formed is formed higher than the height of the electronic component, such a casing is set to a height sufficient to cover the electronic component in the mounting direction. Therefore, the protective cover as in the prior art can be eliminated by devising the height of the opening of the casing.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments in which a vehicle instrument of the present invention is embodied will be described with reference to the drawings.

  1 and 2 show a vehicle instrument according to the present embodiment. The vehicle meter 1 is a combination meter installed in front of the vehicle interior of the vehicle, and includes a dial plate 10, a pointer 20, a casing 30, a circuit board 40, and the like.

  The dial 10 is arranged with the direction from the front to the rear in the passenger compartment as the display direction. On the dial plate 10, scales 12 a, numbers 12 b, characters 12 c, and the like are formed as “indicators” to be displayed for passengers (hereinafter referred to as passengers) such as a driver in the passenger compartment. The dial plate 10 is transmitted and illuminated by a light source 42 arranged on the rear side of the dial plate 10 in the display direction.

  The pointer 20 is disposed on the back side of the dial 10 in the display direction. The pointer 20 has a pointer main body 21 and a support shaft 22, and the support shaft 22 is connected to a dial 10 and a rotating inner unit 40 as a movement disposed behind the support shaft 22. Thus, the pointer main body 21 can be rotated. The pointer 20 indicates the scale 12a and the number 12b according to the rotation position with the tip of the pointer main body 21. Here, the pointer 20 of the present embodiment indicates the vehicle speed by indicating the scale 12a and the number 12b arranged along the rotation direction of the support shaft 22, and represents other vehicle information such as the engine speed and the fuel. It may represent the remaining amount, engine coolant temperature, and the like.

  The rotating inner unit 41 is, for example, a coil actuator or a stepping motor, and has an output shaft 41a. The rotary inner unit 41 is disposed on the rear side in the display direction of the dial plate 10, and the output shaft 41 a is coaxially connected to the support shaft 22 of the pointer 20. The energizing inner unit 41 drives the pointer 20 together with the output shaft 41 by energization.

  The light source (hereinafter referred to as a first light emitting diode) 42 is a point light source such as a light emitting diode, and for example, a chip type light emitting diode is used and emits white light when energized. The first light emitting diode 42 is disposed on the rear side in the display direction of the dial plate 10 and can irradiate the dial plate 10 with light.

  The control circuit 70 is an electric circuit such as a microcomputer, for example, and is arranged on the rear side of the dial 10 in the display direction. The control circuit 70 is electrically connected to the light emitting diodes 42, 43, 44, the rotary inner unit 41, the liquid crystal display 60, and the like. The control circuit 50 is electrically connected to a vehicle light control switch and a vehicle speed sensor (not shown) directly or via another control circuit. With these configurations, the control circuit 70 controls energization to the first light emitting diode 42 according to the operation position of the light control switch by the occupant and energizes the rotating inner unit 41 according to the detection signal of the vehicle speed sensor. Control. In the present embodiment, the light control switch is provided with three operation positions: a light off position, a vehicle width lamp on position, and a headlamp on position.

  The casing 30 includes an outer peripheral wall 31 that accommodates the pointer 20, the circuit board 40, and the like. A first opening 30a for inserting the pointer 20 and the like is formed at one end of the outer peripheral wall 31 in the display direction, and the dial 10 is assembled and fixed to the opening end by a connecting member such as a screw 80. . The screw 80 is screwed into the boss portion 31 a on one end side of the outer peripheral wall 31 through the screw hole 10 a of the dial 10. Further, a second opening 30b for inserting the circuit board 40 is formed at the other end of the outer peripheral wall 31, and a locking part 31b for locking the circuit board 40 inserted into the inside from the opening end side is formed. Is provided. The circuit board 40 is held by the locking part 31b by screwing the circuit board 40 with the screw 80 into the locking part 31b.

  Next, the characteristic configuration of the present embodiment will be described in detail with reference to FIGS. As shown in FIG. 2, the dial plate 10 is integrally formed with a dial plate body 11, an indicator portion 13 and a concealing portion 14 that are stacked on the surface of the dial plate body 11 (hereinafter also referred to as a display surface). . The dial main body 11 is a substantially flat light-transmitting member made of a light-transmitting material such as a colorless and transparent polycarbonate resin or an acrylic resin such as methyl methacrylate (hereinafter referred to as “methacrylic” resin).

  The indicator portion 13 is formed with the scale 12a, the number 12b, and the characters 12c arranged along the rotation range of the pointer 20, and a light-transmitting colored layer formed on the surface of the dial 10. It is. In the index part 13, the scale 12a, the number 12b, and the character 12c are subjected to processing such as providing the colored layer on the dial body 11 by printing or hot stamping. The colored layer of the indicator portion 13 is not limited to a light-transmitting colored layer made of a light-transmitting material such as white, orange, green, etc., and may be subjected to a process of providing a semi-transparent colored layer that is not a light-blocking colored layer. Good. Thereby, when the dial plate 20 is transmitted and illuminated by the first light emitting diode 42, the scale 12 a, the number 12 b, and the character 12 c are lit and displayed.

  The background other than the indicator portion 13, that is, the concealment portion 14 is formed of a light-shielding colored layer so that the rear side in the display direction of the dial plate 10 is not visually recognized through the dial main body 11 formed of a translucent member. The light-shielding colored layer is made of a black-based light-shielding resin material, and is subjected to a treatment such as providing the light-shielding colored layer on the surface of the dial plate body 11 by printing or hot stamping. Thereby, the inside of the back side of the dial 10 can be concealed from the viewing range seen by the occupant.

  Of the concealing portion 14, a portion of a transmitting portion (hereinafter also referred to as a pointer transmitting portion) 12 corresponding to a turning area where the pointer 20 rotates is not subjected to the process of applying the light-shielding colored layer, The base of the plate body 11, that is, the translucent member is formed to be exposed.

  Specifically, the transmission part 12, the indicator part 13, and the concealing part 14 are formed on the dial main body 11 as follows. The transmitting portion 12 is formed so that the base of the dial main body 11 is exposed in a rotation range in which a part of the pointer 20, that is, a tip portion of the pointer main body 21 rotates.

  The indicator portion 13 is provided with a scale 13 a and a number 13 b on the outer peripheral side and the inner peripheral side of the transmission portion 12 along the direction in which the pointer 20 of the transmission portion 12 rotates. Since the scale 13a and the number 13b arranged in this way are clearly indicated by both ends of the tip of the pointer 20 displayed through the transmission part 12, the vehicle speed is accurately recognized by the occupant from the movement of the pointer 20.

  The display designs such as the scales 13a, the numbers 13b, and the characters 13c are formed on the front surface of the dial main body 11 by the translucent colored layer having these display design shapes as shown in FIGS. The base of the dial main body 11 is exposed at the position of the rear surface of the dial main body 11 corresponding to the translucent colored layer of each display design.

  Not only this but the transparent colored layer of the said display design may be formed in both surfaces of the dial main body 11. FIG. For example, the display designs 13a, 13b, and 13c exhibit semi-translucency due to the light-transmitting colored layers formed on both surfaces.

  The concealing part 14 is provided on both surfaces of the dial main body 11 by the light-shielding colored layer, and is printed along the outline of the display design shape of the indicator part 13 so as not to overlap the scale 13a, the number 13b, and the character 13c. Sometimes formed by masking or the like.

  With the structure in which the indicator portion 13 and the concealing portion 14 are integrally formed on the display surface of the dial plate 10 described above, the transparent cover, the dial plate, and the facing plate, which are the basic configurations according to the prior art, are used as one dial plate. Can be formed.

  Here, when the vehicle instrument 1 is a combination meter as in this embodiment, vehicle information other than the vehicle speed may be displayed on the dial 10 to the passenger. For example, there is a device provided with a warning display unit 17 that warns of an abnormality in order to call attention to the abnormality of the vehicle state. In this case, the symbol mark 17a corresponding to each abnormality of the warning display unit 17 is not displayed regardless of whether the first light emitting diode 42 is turned on or off at normal times other than when the abnormality occurs.

  Such a warning display unit 17 performs the same function as the background around the index unit 13, that is, the concealment unit 14 in a normal time. That is, in the concealment unit 14, the symbol mark 17 a and the background portion 17 b of the mark are formed of a semi-transparent colored layer only in the display area of the warning display unit 17, and the background portion 17 b is shielded from the concealment unit 14. The semi-transparent colored layer is formed of a semi-transparent colored layer having the same color tone (hereinafter referred to as background color) as the luminescent colored layer, and the symbol mark 17a has a color tone such as red (hereinafter referred to as caution display color) that calls attention. And the above-described semi-transparent colored layer of the background color.

  In the warning display unit 17, the display design of the symbol mark 17a is displayed with a semi-transparent transmissivity of the caution display color only when the second light emitting diode 43 different from the first light emitting diode 42 is turned on at the time of abnormality. The

  Further, as vehicle information other than the above vehicle speed, there is one in which the vehicle meter 1 is provided with a liquid crystal display 60 that displays an accumulated travel distance, a passenger compartment temperature, and the like. In this case, the liquid crystal display 60 has a liquid crystal panel such as a TFT transmissive liquid crystal panel, and is disposed on the back side of the dial 10 in the display direction. When the third light emitting diode 44 different from the first light emitting diode 42 is lit, the liquid crystal display 60 displays a plurality of character information such as the accumulated travel distance and the vehicle interior temperature as a character information image.

  In the display area of the dial plate 10 corresponding to the liquid crystal display 60, a second transmissive portion (hereinafter referred to as a transmissive portion for liquid crystal display) 16 where the base of the dial main body 11 is exposed is provided in the same manner as the transmissive portion 12. Is formed.

  Also, as shown in FIGS. 1 and 4, as an instruction means for selecting specific vehicle information (cumulative mileage, vehicle interior temperature, etc.) from the plurality of character information displayed on the liquid crystal display 60, etc. The reset switch 50 is provided in the vehicle instrument 1. As shown in FIG. 4, the reset switch 50 includes push rods 51 and 52, a switch element 45, and the like. The push rod 2 has a rod-shaped rod portion 51 and a contact portion 52 that is one end on the switch element 45 side. The rod portion 51 is inserted into the through hole 15 of the dial plate 10, and the contact portion is It is fitted to the sealing wall 37 of the casing 30 so as to be movable in the axial direction. In addition, since one end of the sealing wall 37 is arranged so as to contact the rear surface of the dial plate 10, the space behind the through hole 15 in the display direction and the switch element 45 are separated by the sealing wall 37 in the fitting state. The space on the circuit board 40 side to be mounted is substantially isolated. As a result, even if the reset switch 50 is provided with the through hole 15 in the dial plate 10, the foreign matter from the outside is almost prevented from entering the space on the circuit board 40 side through the through hole 15 of the dial plate 10. can do.

  Next, the first light emitting diode 42 that irradiates light toward the dial plate 10 is provided with a reflecting portion 32 as a reflecting plate that reflects the light emitted from the light emitting diode 42 toward the dial plate 10. The reflector 32 is disposed outside the first light emitting diode 42 on the rear side of the dial 10 in the display direction. The reflection unit 32 reflects light that travels in a direction deviating from the dial plate 10 (for example, light by a broken line or a dotted line in FIG. 2) out of the light emitted from the first light emitting diode 42 toward the dial plate 10.

  Specifically, the reflecting portion 32 is formed integrally with the outer peripheral wall 31 of the casing 30. The reflecting portion 32 is provided with a light receiving window portion 33 for arranging a plurality of (in this embodiment, three as shown in FIG. 3) first light emitting diodes 42 inside, and between the dial 10 and the circuit board 40. Has been placed. With such a configuration, the first light emitting diode 42 can illuminate the dial 10 from the rear side in the display direction with high efficiency.

  The inner annular portion of the reflecting portion 32 performs a shielding function that shields the light from irradiating the base side of the pointer 20, that is, the base portion of the pointer main body 21 and the support shaft 22. Further, shielding walls 35 and 36 are provided on the outer peripheral side of the reflecting portion 32 so that the light and the light emitted from the second light emitting diode 43 or the light emitted from the third light emitting diode 44 do not overlap. . The first light shielding wall 35 is provided outside the second light emitting diode 43 corresponding to each symbol mark 17a. The second light shielding wall 36 is provided outside the third light emitting diode 44. The shielding walls 35 and 36 are formed integrally with the outer peripheral wall 31 of the casing 30.

  The reflecting portion 32 is disposed along the turning region of the pointer 20, and the pointer main body 21 is sandwiched between the reflecting portion 32 and the pointer transmitting portion 12 of the dial 10. As a result, direct light from the first light emitting diode 42 (light by a solid line or a two-dot chain line in FIG. 2) and reflected light by the reflecting portion 32 (light by a broken line or a dotted line in FIG. 2) 21 is effectively irradiated toward the distal end portion 21 side and the pointer transmission portion 12.

  In the arrangement relationship of the pointer transmission portion 12, the pointer 20, and the reflection portion 32, the transmitted light emitted from the pointer transmission portion 12 is tremendous compared to the concealment portion 14 as the background. The pointer main body 21 that has lightness and can be seen through the pointer transmitting portion 12 with the concealing portion 14 as a reference can be made to stand out in contrast to the concealing portion 14.

  Moreover, the pointer main body 21 is less shaded than the transmitted light in the pointer transmission portion 12 around the pointer main body 21 and becomes a shadow. Therefore, it is possible to give the occupant a novel appearance that makes the pointer body 21 appear as a shadow with reference to the brightness of the transmitted light around the pointer body 21. Such a pointer transmitting portion 12 and the pointer main body 21 can be made to stand out in contrast to the concealing portion 14.

  In addition, the casing 30 can be any electronic component in which the height of the second opening 30b is mounted on the circuit board 40 in a state where the circuit board 40 is inserted from the second opening 30b and fixed to the locking portion 31b. It is formed higher than the height of 41, 46, 70. Such a casing 30 is set to a height sufficient to cover the electronic components 41, 46, and 70 in the mounting direction.

  In the present embodiment described above, the indicator portion 13 where the “index” indicated by the pointer 20 is formed, and the concealing portion 14 for concealing the inside of the dial 10 on the rear side in the display direction from the viewing range by the occupant. Is formed on the surface of the character main body 11 so that a dial plate for displaying an indicator as in the prior art and a dial plate for concealing the internal structure within the driver's visual recognition range are formed by the dial plate 10 as one member. be able to.

  In addition, the base of the dial plate 10 is composed of a dial main body 11 formed of a translucent member, and the pointer transmitting portion 12 is formed on the dial plate 10 corresponding to the rotation region by the pointer 20. For this purpose, it is only necessary to expose the dial body 11 which is the base of the dial 10, and it is not necessary to open an opening as in the prior art.

  Therefore, the transparent cover, the dial plate, and the dial plate, which are the basic configurations according to the prior art, are formed as a single member by the configuration in which the indicator portion 13 and the concealing portion 14 are integrally formed on the display surface of the dial plate 10 described above. It can be formed of a plate 10.

  Further, in the present embodiment described above, the concealing portion 14 is provided on the display surface of the dial plate 10. The concealing portion 14 is formed of a light-shielding colored layer made of a black light-shielding resin material or the like. Therefore, the space for disposing the concealing portion 14 on the dial plate 10 can be made thinner than the space for the vehicle instrument required for disposing the dial plate and the dial plate in the prior art. Accordingly, the vehicle instrument 1 can be thinned and the inside of the rear surface side of the dial plate 10 can be effectively concealed from the viewable range of the occupant.

  In the present embodiment described above, the indicator portion 13 is arranged on the dial 10 in contrast to the surrounding background other than the indicator portion 13, that is, the concealing portion 14. As the indicator portion 13, for example, a transparent resin material is used. Since the colored colored layers of white, orange, green, etc. are provided, the indicator portion 13 can be made to stand out compared to the concealment portion 14 only for the purpose of concealing the viewing range. In this embodiment, since the light of the first light emitting diode 42 is irradiated toward the dial plate 10, the scales 13 a, the numbers 13 b, etc. of the index part 13 can be displayed with transparency, so that the index part 13 is hidden. Compared with the part 14, it is displayed with a great brightness. Thereby, the visibility of the indicator portion 13 viewed by the occupant can be improved with the concealment portion 14 as a reference.

  In the present embodiment described above, the dial plate 10 includes the dial main body 11 made of a transparent translucent member, and the pointer transmitting portion 12 is a translucent member that is a base of the dial plate 10. However, since the transparent member is formed in a transparent color tone that is easy to visually recognize, it is visible to the occupant who sees the pointer transmission portion 12 in the rear side of the pointer transmission portion 12. The object can be clearly displayed.

  In the present embodiment described above, the pointer 20 is arranged on the rear side of the pointer transmission portion 12 of the dial 10 as the visual recognition target. With such an arrangement relationship between the dial 10 and the pointer 20, it is not necessary to provide an insertion hole for inserting the support shaft of the pointer, as in the case where the pointer of the prior art is arranged on the front side of the dial. Therefore, it is possible to prevent the dial 10 from being formed with a hole that communicates the inside and outside of the dial, such as the insertion hole.

  Further, in the present embodiment described above, it is preferable that the distal end portion of the pointer 20, that is, a part on the indicator portion 13 side of the pointer main body 21 is displayed in the pointer transmission portion 12. In such a configuration, the pointer 20 is rotatably disposed along the rear surface side of the pointer transmission portion 12, but the range that the occupant can visually recognize through the pointer transmission portion 12 is the index of the pointer 20. It can be limited to a part on the part 13 side. Accordingly, it is possible to effectively conceal the internal structure to be concealed other than the visual target from the visual range while allowing the occupant to visually confirm the pointer 20 of the visual target.

  Further, in the present embodiment described above, the first light emitting diode 42 is arranged on the rear side of the dial 10 in the display direction in order to make the indicator portion 13 and the pointer 20 that are objects to be visually recognized by the transmitted illumination. Yes. The first light emitting diode 42 emits light that directly illuminates the dial plate 10 and light that cannot be directly radiated on the dial plate 10, that is, light that can be avoided, but a reflective portion that reflects the escaped light toward the dial plate 10. 32, and the reflecting portion 32 is formed integrally with the casing 30. Accordingly, the first light emitting diode 42 can illuminate the dial 10 from the rear side in the display direction with high efficiency, and increase the number of parts of the reflecting portion 32 which is a means for achieving this. Can be provided.

  In the present embodiment described above, the reflecting portion 32 is disposed along the turning region of the pointer 20, and the pointer main body 21 is sandwiched between the reflecting portion 32 and the pointer transmitting portion 12. . Thereby, the direct light from the first light emitting diode 42 and the reflected light obtained by reflecting the light to be escaped by the reflecting portion 32 are effectively irradiated toward the distal end side of the pointer main body 21 and the pointer transmitting portion 12 in the pointer 20. Be made. Thereby, the pointer transmission portion 12 and the pointer main body 21 can be made to stand out in contrast to the concealing portion 14.

  Here, in a vehicle instrument casing in which a circuit board is inserted and installed, in order to avoid direct contact with electronic parts mounted on the circuit board or interference with parts outside the vehicle instrument. Some have a protective cover on the back side of the casing.

  On the other hand, in the present embodiment, in the casing 30, the height of the second opening 30 b is mounted on the circuit board 40 in a state where the circuit board 40 is inserted and fixed from the second opening 30 b. It is formed higher than the height of the electronic components 41, 46 and 70. Such a casing 30 is set to a height sufficient to cover the electronic components 41, 46, and 70 in the mounting direction. Therefore, by devising the height of the opening 31b of the casing 30, the protective cover as in the prior art can be eliminated.

(Other embodiments)
As mentioned above, although one Embodiment of this invention was described, this invention is limited to this embodiment and is not interpreted and can be applied to various embodiment in the range which does not deviate from the summary.

  (1) In this embodiment described above, the dial main body 11 is formed of a colorless and transparent translucent member, and the transparent member 12 for pointer is exposed from the translucent member that is the base of the dial 10. The translucent member used for the dial main body 11 is not limited to being colorless and transparent, and may be colored. In any case, it is possible to clearly display the visually-impaired pointer 20 or the like inside the rear surface side of the pointer transmission portion 12 for the occupant looking at the pointer transmission portion 12.

  (2) In the present embodiment described above, the concealing portion 14 is a light-shielding colored layer made of a black light-shielding resin material or the like, but is not limited thereto, and is a metal layer formed of a metal vapor deposition film. It may be a thing.

  (3) In the present embodiment described above, the light-transmitting colored layer and the light-shielding colored layer integrally formed on the dial main body 11 are provided on the surface of the dial main body 11 by printing or hot stamping. Not limited to this, it may be provided by physical vapor deposition or the like.

  (4) In the present embodiment described above, the dial 10 is provided with the translucent colored layer and the light-shielding colored layer at least on the front side in the display direction of the dial main body 11. However, the present invention is not limited to this, and a top coat for UV cut or the like may be applied to the surface of the dial main body 11 on which the light-transmitting colored layer and the light-shielding colored layer are formed. Scratch prevention of the light-transmitting colored layer and the light-shielding colored layer can be achieved.

  (5) In this embodiment described above, a coupling member such as a screw 80 is used as an assembly structure for assembling and fixing the dial plate 10 to the circuit board 40 to the casing 30. The assembly structure is not limited to this, and the shape of the casing 30 for engaging the circuit board 40 as shown in FIG. 5 is devised, and the shapes of the dial 10 and the casing 30 are devised as shown in FIG. Any combination of these may be used. FIG. 5 shows an arrangement in which an outer peripheral wall 131 of the casing 30 is provided with a locking portion 31c for sandwiching the circuit board 40 and a claw portion 131e having flexibility. The claw portion 131e has an outer periphery along the contour of the claw portion 131e. It is formed by folding back the notch 131d in which the wall 131 is formed. 6 shows a second engagement portion that engages with a first engagement portion 111 in which a part of the dial 10 is extended in the extending direction at an end portion of the casing 30 on the first opening portion 30a side. 131a is provided. Accordingly, since so-called snap-fit fitting as shown in FIGS. 5 and 6 is used, a vehicle instrument in which a coupling member such as the screw 80 is eliminated can be provided.

It is a front view which shows schematic structure of the meter for vehicles by embodiment of this invention. It is a figure which shows schematic structure of the meter for vehicles by embodiment of this invention, Comprising: It is II-II sectional drawing of FIG. 1 is an exploded perspective view of a vehicle instrument according to an embodiment of the present invention. It is a figure which shows the structure of the dial plate and casing around the reset switch in FIG. 1, Comprising: It is sectional drawing of IV-IV of FIG. It is a fragmentary sectional view which shows the assembly | attachment structure concerning the measuring instrument for vehicles by other embodiment. It is a fragmentary sectional view which shows the assembly | attachment structure concerning the measuring instrument for vehicles by other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle instrument 10 Dial 11 Dial body 12 Pointer transmission part (transmission part)
13 Indicator part 13a Scale 13b Number 13c Character 14 Concealing part 15 Through hole 16 Transmitting part for liquid crystal display (second transmitting part)
17 warning display portion 17a symbol mark 17b background portion 20 pointer 21 pointer main body 22 support shaft 30 casing 31 outer peripheral wall 32 reflecting portion (reflecting plate)
33 Light Receiving Window Part 35 First Light Shielding Wall 36 Second Light Shielding Wall 40 Circuit Board 41 Rotating Inner Unit (Movement)
42 1st light emitting diode 43 2nd light emitting diode 44 3rd light emitting diode 45 Switch element 46 Connector 50 Reset switch 51 Rod part 52 Contact part 60 Liquid crystal display 70 Control circuit 80 Screw (coupling means)

Claims (4)

A dial to display the indicator;
A pointer that rotates along the dial;
A light source disposed on the rear side of the dial and illuminating the dial;
A circuit board on which the light source is mounted;
A light receiving window for receiving light from the light source, disposed between the dial and the circuit board, directly irradiating the dial with light from the light source through the light receiving window; and the character In a vehicle instrument comprising a reflector that reflects light traveling in a direction away from the plate toward the dial,
The dial is made of a translucent member,
On the display surface of at least one of the front surface and the rear surface of the dial,
An indicator part where the indicator indicated by the indicator is formed;
In addition to the indicator portion, except for a transmissive portion formed along a rotation area where the pointer rotates, a concealing portion for concealing the inside of the rear surface side of the dial from the viewing range,
The indicator part and the concealing part are integrally formed on the display surface,
The concealing part is concealed with a light-shielding colored layer or a metal layer,
The indicator portion is formed of a translucent colored layer,
The pointer is disposed on the rear side of the dial,
The reflector is integrally formed with the casing of the vehicle instrument, is disposed along the turning region of the pointer, and the pointer is sandwiched between the reflector and the transmission portion. to that car dual-purpose instrument with. The dial is the transparent or colored translucent member,
The transmission unit for a vehicle meter according to claim 1, wherein the light transmitting member is exposed. Wherein the transparent portion formed in the pivot region of the vehicle meter according to claim 1 or 2, characterized in that part of the index side is displayed at the pointer. The casing has an opening for inserting and installing the circuit board,
In the state where the circuit board is inserted and installed in the casing, the opening has a height that extends in the mounting direction of the circuit board in the opening is higher than the electronic component mounted on the circuit board. vehicle meter according to any one of claims 1 to 3, characterized in that it is formed.

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