JP2008107192A - Luminous pointer and indicator for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a luminous pointer excellent in visibility and capable of novel display. <P>SOLUTION: The luminous pointer 3 for illuminating the pointer 31 by the guided light through the pointer 31 which is provided in front of the dial plate 2 for displaying the measured amount cooperating with the index 23 marked on the dial plate 2. The pointer 31 includes: a surface part 31a extending toward indicating direction being directly recognized by a viewer; a bottom part 31b opposite to the surface part 31a and narrower than the same; an inclination part 31c tilting from the edge part of the surface part 31a toward the edge of the bottom face part 31b for blocking the outgoing light from inside of the indication part toward the dial plate; and a colored layer 31d applied on the bottom part 31b. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a self-luminous pointer and a vehicle display device, and more particularly to a self-luminous pointer that emits an indicator by light guided through the indicator and a vehicle display device having the self-luminous indicator.

  As shown in FIGS. 7 and 8, the vehicle generally has a plurality of (four in FIG. 7) vehicle display devices 100 for displaying measured values such as vehicle speed, engine speed, fuel remaining amount, temperature, and the like. A combination meter 1 is mounted. The combination meter 1 accommodates a plurality of vehicle display devices 100, a warning 102, a shift indicator 103, and a facing 104 that covers an edge of the vehicle display device 100 in a case 105 and covers it with a front glass 106. In this way, the pointer 112 and the like of the vehicle display device 100 are protected. The combination meter 1 is attached to the vehicle by a plurality of attachment portions 7 provided on the case 105.

  The vehicular display device 100 includes a dial plate 111 on the surface of which a scale 111 and an index 111a such as numbers, letters or symbols are provided, a pointer 112 disposed on the front surface of the dial plate 111, and a pointer 112 according to a measurement amount. An internal unit 113 for driving the circuit board, a wiring board 114 provided with a circuit pattern and to which the internal unit 113 is fixed, a plurality of light sources 115 provided on the wiring board 114, and the case 105 toward the wiring board 114. A reflection surface 116 that reflects light from the light source 115 and a back cover 117 are provided. Then, by guiding the light from the light source 115 to the dial plate 111 and the pointer 112, the indicator 111a of the dial plate 111 and the instruction unit 112a of the pointer 112 are caused to emit light.

The self-light emitting pointer shown in Patent Document 1 adds a light received at the base to a reflecting surface that reflects the tip of the pointing unit in order to emit light uniformly without spots, and a part of the received light is an indicator near the base. It is known that an indicator near the base is made to emit light by providing a reflection surface for the vicinity that reflects toward the bottom surface of the base.
JP 2005-265835 A

  A self-luminous pointer used in a vehicle display device has a rectangular cross section, and a thin, substantially linear colored layer is applied to a part of its bottom surface. In such a self-light emitting pointer, when the indicator of the dial, characters, etc. arranged under the indicating portion and the indicator portion overlap, the substantially linear colored layer has a smaller area covering the indicator. Since the indicator on the dial is visually recognized through the instruction part, the translucent member forming the instruction part functions as a lens and the indicator is distorted and visually recognized, which may reduce visibility. .

  In addition, in consideration of prevention of light leakage from the indication part of the self-luminous pointer to the dial, it is conceivable to apply a light shielding member on the lower surface of the indication part, but only a linear colored layer is visually recognized on the bottom surface, It looked mediocre.

  Furthermore, in the display device for vehicles mounted on the vehicle, as a method for differentiating each vehicle type (cars with different price ranges), a novel pointer structure is used to distinguish between display design and novelty. Was desired.

  Therefore, in view of the above-described problems, an object of the present invention is to provide a self-luminous pointer and a vehicle display device that can display with good visibility and can be innovative.

  The self-luminous pointer according to claim 1, which is made according to the present invention in order to solve the above-described problem, is a translucency that is provided on the front side of the dial and displays a measurement amount in cooperation with an index attached to the dial. A self-luminous pointer having a pointing portion made of a member and emitting the pointing portion by light guided in the pointing portion, wherein the pointing portion extends in the pointing direction and is directly visible to an observer And a bottom surface portion facing the surface portion and having a narrower width than the surface portion, and light is emitted from the edge of the surface portion toward the edge of the bottom surface portion and from the inside of the indicating portion toward the dial. It has the inclination part which inclines so that it may prevent, and the colored layer given to the said bottom face part, It is characterized by the above-mentioned.

  According to the self-luminous guideline of the present invention described in claim 1 above, the light guided into the pointing portion irradiates the colored layer applied to the bottom surface portion, and the observer passes through the surface portion to Visually observe the colored layer. In addition, when the light guided through the indicator is directed toward the inclined portion, the inclined portion is reflected into the indicator so as not to be emitted toward the dial, so that the observer can visually recognize the inclined surface through the surface portion. To do.

  According to a second aspect of the present invention, in the self-luminous pointer according to the first aspect, the inclined portion is formed to be a total reflection surface with respect to external light incident from the surface portion into the pointing portion. It is characterized by that.

  According to the self-light-emitting pointer of the present invention described in claim 2, the external light that has entered the indicating portion from the surface portion or the like illuminates the colored portion as it goes in the direction of the dial. Further, the other external light is totally reflected on the inner surface of the inclined portion toward the indication portion, so that light leakage from the indication portion to the dial can be prevented.

  The vehicle display device according to claim 3, which has been made in accordance with the present invention in order to solve the above-mentioned problems, cooperates with a dial and an index provided on the front side of the dial and attached to the front side of the dial. A display device for a vehicle having a pointer for displaying a measured amount, wherein the pointer is the self-luminous pointer according to claim 1 or 2, provided on the back side of the dial and indicated by the self-luminous pointer. It has the light source which emits the light which guides the inside of a part.

  According to the vehicle display device of the present invention described in claim 3 above, the light emitted from the light source is guided through the pointing portion of the self-luminous indicator, and the colored layer is irradiated by the light, so that the observer can observe the surface. The colored layer is visually confirmed to emit light through the part. In addition, when the light guided through the indicator is directed toward the inclined portion, the inclined portion is reflected into the indicator so as not to be emitted toward the dial, so that the observer can visually recognize the inclined surface through the surface portion. To do.

  As described above, according to the self-light-emitting pointer of the present invention described in claim 1, since both side surfaces of the pointing portion are inclined portions, the emission of light from the pointing portion toward the dial plate is prevented. When a person sees the colored layer on the bottom surface portion through the surface portion, the indicator attached to the surface of the dial from the both sides in the indicating portion cannot be visually recognized. It looks like it appears in the instruction section, and it can provide a new display with good visibility to the observer.

  According to the second aspect of the present invention, in addition to the effect of the first aspect of the invention, the external light incident on the indicator is totally reflected by the inclined portion toward the indicator. Can prevent light leakage from the dial to the dial, so that the indicator of the dial cannot be seen through both sides of the colored layer through the indicator, and the visibility can be further improved to give a novel feeling. it can.

  As described above, according to the vehicle display device of the present invention described in claim 3, even if the light emitted from the light source is guided in the pointing portion of the self-light emitting pointer, it is directed to the dial from both sides of the colored layer. Since the emission of light is blocked by the inclined part, the observer visually recognizes the indicator attached to the surface of the dial from both sides of the indicator when viewing the colored layer on the bottom part through the surface part. Since this is not possible, it is possible to provide an observer with a high visibility and a novel display.

  Hereinafter, the best mode when the self-light emitting pointer and the vehicle display device according to the present invention are applied to a black face meter will be described with reference to the drawings of FIGS. The self-light emitting pointer and the vehicle display device can be used for various meters other than the black face meter.

  In FIG. 1, a vehicular display device 1 includes a dial 2 having a surface (a surface visually recognized by a user) provided with an index portion 23 such as a scale and numerals, characters or symbols, and a front surface of the dial 2. A self-luminous pointer (hereinafter also referred to as a pointer) 3 to be arranged, an internal unit 4 that drives the pointer 3 according to a measurement amount, a wiring board 5 on which a circuit pattern is provided and the internal unit 4 is fixed, and wiring A plurality of light sources 6 provided on the board 5, a case 7 having a tapered portion 71 formed so as to go from the center of the wiring board 5 toward the edge of the dial plate 2, and a back cover that covers the back side of the wiring board 5 8 and a front glass 9 as a colored translucent member.

  Although not illustrated, the dial plate 2 includes a translucent dial fabric, a translucent indicator portion, and a non-translucent light shielding portion. The dial cloth is formed into a plate shape with a light-transmitting synthetic resin such as polycarbonate, and has a substantially circular shape corresponding to each meter. On the front surface of the dial fabric, an indicator portion and a light shielding portion that covers other than the indicator are formed by screen printing or the like. And since the light from the light source 6 permeate | transmits the dial cloth and the light is radiate | emitted only in an observer direction from an indicator part, an observer visually recognizes light emission of an indicator part.

  The pointer 3 is a self-luminous pointer of the present invention, and displays a measurement amount in cooperation with an indicator portion 23 provided on the front side of the dial 2 and attached to the dial 2. The pointer 3 includes a pointer main body 33 including an instruction portion 31 and a base portion 32, a pointer cap 34 formed of an opaque synthetic resin that covers the base portion 32, and a balance member that is provided in the pointer cap 34 and adjusts the balance of the pointer 3. 35, and a pointer rod 36 that fixes the pointer main body 33 and is fixed to the output shaft of the internal unit 4. In the pointer main body 33, an instruction portion 31 and a base portion 32 are integrally formed of acrylic resin or the like.

  As shown in FIGS. 2 to 5, the instruction unit 31 includes a surface portion 31a, a bottom surface portion 31b, a pair of inclined portions 31c, and a colored layer 31d.

  The surface part 31a is a surface of the instruction part 31 that extends in the instruction direction of the instruction part 31 and is directly visible to the observer. The bottom surface portion 31b is the bottom surface of the indicating portion 31 that faces the surface portion 31a and is narrower than the surface portion 31a. The width of the bottom surface part 31b is designed to be substantially linear smaller than the width of the surface part 31a, and corresponds to the width of the colored layer 31d that the observer wants to visually recognize.

  The pair of inclined surfaces 31 c serve as side surfaces of the indicating unit 31 that blocks light from being emitted from the inside of the indicating unit 31 toward the dial plate 2 toward the edge of the bottom surface unit 31 b from the edge of the surface unit 31 a. Each inclined surface 31c is formed so as to intersect with the bottom surface portion 31b at an inclination angle θ of about 45 degrees. By forming in this way, the inclined surface 31c totally reflects the external light L incident from the surface portion 31a toward the inside of the indicating portion 31 on the inner surface. That is, since the inclined surface 31 c is an inclined surface, it is possible to prevent the outside light L and the like from being emitted from the instruction unit 11 c toward the dial 2.

  Note that the inclination angle of the inclined surface 31c is preferably an angle at which the external light L or the like is totally reflected toward the indication unit 31, but can be arbitrarily set in consideration of the design of the pointer 3 and the like. Further, the inclined surface 31c can be various embodiments such as a circular arc shape as well as a linear shape.

  The colored layer 31d is provided with a colored member such as red or orange by hot stamp printing or the like so as to cover the surface of the bottom surface portion 31b of the instruction unit 31. When the colored layer 31d is irradiated with light guided through the pointing unit 31, external light L, or the like, the light is reflected by the colored layer 31d toward the surface portion 31a and travels from the surface portion 31a toward the observer. Are visible from the observer.

  As shown in FIG. 6, the base portion 32 of the pointer main body 33 includes a light receiving surface 32 a that receives light from the light source 6, a reflective surface 32 b that reflects light received by the light receiving surface 32 a toward the distal end of the pointing portion 31, and a pointer A fixing portion 32c for fixing the main body 33 to the pointer rod 36, and two positioning holes 32d provided in the fixing portion 32c and through which a boss 34a in the pointer cap 34 passes are provided.

  The pointer cap 34 has a pair of bosses 34a provided on its inner surface so as to correspond to the positioning holes 32d of the pointer 3 as substantially columnar protrusions, and a balance boss 34b for positioning the balance member 35 as a substantially columnar protrusion on the inner surface thereof. And an engaging recess 34c provided on the inner surface so that the engaging protrusion 36e of the pointer rod 36 is engaged.

  The balance member 35 is formed to have a weight set in consideration of the instruction portion 31 of the pointer main body 33, and has a through hole 35a through which the pair of balance bosses 34b of the pointer cap 34 are passed. The balance member 35 is positioned by the balance boss 34 b and is accommodated in the pointer cap 34.

  The pointer rod 36 is provided with a disc-shaped lid portion 36a corresponding to the outer shape of the pointer cap 34, a bearing portion 36b extending from the lid portion 36a toward the inner unit 4, and a light receiving portion of the pointer main body 33. The penetrating part 36c through which the part 32 penetrates and the pair of positioning holes 36d for positioning by passing through the pair of bosses 34a of the pointer cap 34 are provided.

  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. The wiring board 5 is mounted with the light source 6 and the internal unit 4 and supplies power to them. The light source 6 uses an LED, a bulb, and the like, and is turned on and off by a control unit (not shown) provided on the wiring board 5. In the case 7, the tapered surface that is the surface of the tapered portion 71 is a reflecting surface, and reflects the light emitted from the light source 6 toward the dial 2. The back cover 8 is assembled to the case 7 so as to cover the back of the wiring board 5.

  The front glass 9 is formed of a colored translucent member such as a smoke panel having a low transmittance. The front glass 9 is assembled to the case 7 through the turning 10. The front glass 9 transmits the light transmitted through the indicator portion 22 of the dial 2 and emits it toward the user. That is, when the light source 6 shines, the indicator portion 22 can be visually recognized, and when the light source 6 does not shine, the visual recognition is blocked.

  Next, an example of manufacturing the self-light emitting pointer 3 according to the present invention having the above-described configuration will be described below with reference to the drawing of FIG.

  The balance boss 34 b in the pointer cap 34 is inserted into the through hole 35 a of the balance member 35, so that the balance member 35 is positioned and accommodated in the pointer cap 34. Then, the pointer main body 33 is formed so that the base portion 32 of the pointer main body 33 passes through the through portion 36c of the pointer rod 36, and the positioning hole 32d of the fixing portion 32c and the positioning hole 36d of the pointer rod 36 are continuous through holes. It is assembled to the guide rod 36. Then, maintaining this state, the pair of bosses 34a in the pointer cap 34 are passed through the continuous through-holes, and the engagement protrusion 36e of the pointer collar 36 and the engagement recess 34c of the pointer cap 34 are engaged. The pointer 3 is completed by assembling the pointer cap 34 and the pointer 3 on the pointer rod 36.

  Next, an example of the operation (action) in the display of the self-light emitting pointer 3 and the vehicle display device 1 according to the present invention having the above-described configuration will be described.

  When the light emitted from the light source 6 shown in FIG. 1 is received by the light receiving surface 32a of the base 32 of the pointer main body 33 in response to turning on of the ignition switch of the vehicle, the light is guided through the base 32 and then the reflecting surface 32b. Is reflected in the direction of the tip of the indicator 31. The light guided in the instruction unit 31 is reflected by the colored layer 31d applied to the bottom surface part 31b of the instruction unit 31, and the observer visually recognizes this light, so that the observer The colored layer 31d of the part 31 is visually confirmed to emit light substantially linearly.

  In addition, the light or the outside light L guided through the indicator 31 toward the inclined surface 31c is totally reflected toward the indicator 31 and guided through the indicator 31 or observed from the surface 31a. It is emitted toward the person. In this way, the inclined portion 31c is reflected into the indicating portion 31 so as not to be emitted from the indicating portion 31 toward the dial 2, so that the observer sees the inclined surface 31c through the surface portion 31a as shown in FIG. It is possible to prevent the indicator portion 23 of the dial 2 from being viewed from both sides of the colored layer 31d through the surface portion 31a. That is, the instruction unit 31 makes the surface of the dial 2 such as the indicator 23 invisible through the surface portion 31a. And since the inclined surface 31c is deeply reflected by total reflection and is visually recognized by an observer, the colored layer 31d which is a real image portion is lifted and visually recognized.

  According to the self-light emitting pointer 3 described above, since the both side surfaces of the indicating unit 31 are inclined portions 31c to prevent light from being emitted from the indicating unit 31 toward the dial plate 2, the observer can observe the surface portion 31a. When the colored layer 31d of the bottom surface portion 31b is viewed through the screen, the indicator portion 23 attached to the surface of the dial 2 is not visible from both sides of the indicating portion 31, so that the colored portion 31d that emits light is clearly visible. The colored layer 31d appears to float in the instruction section 31, and the observer can provide a novel display with good visibility.

  In addition, since the external light L that has entered the indicator 31 is totally reflected by the inclined portion 31c toward the indicator 31, light leakage from the indicator 31 to the dial 2 can be prevented. Therefore, the indicator portion 23 of the dial 2 cannot be seen through both sides of the colored layer 31d through the instruction portion 31, and the visibility can be further improved to give a novel feeling.

  Furthermore, according to the vehicle display device 1, even when the light emitted from the light source 6 is guided in the indicator 31 of the self-light emitting pointer 3, the light emitted from both sides of the colored layer 31 d toward the dial 2 is inclined. Since it was made to block by the part 31c, when the observer visually recognized the colored layer 31d of the bottom part 31b through the surface part 31a, the index | marker attached | subjected to the surface of the dial 2 from the both sides in the instruction | indication part 31 Since the part 23 cannot be visually recognized, the observer can be provided with a novel display with good visibility.

  Further, 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 sectional drawing which shows schematic structure of the display apparatus for vehicles of this invention. It is a perspective view of the self-light-emitting pointer according to the present invention in FIG. FIG. 3 is an enlarged perspective view of a part X in FIG. 2. It is sectional drawing of the arrow direction which passes along the straight line AA in FIG. It is a top view which shows the visual recognition example of the instruction | indication part of FIG. 3, and the parameter | index part of a dial. FIG. 3 is an exploded perspective view of the self-light emitting pointer in FIG. 2. 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 3 Self-luminous pointer 31 Instruction part 31a Surface part 31b Bottom part 31c Inclined part 31d Colored layer 32 Base 33 Pointer body 34 Pointer cap 36 Pointer L External light

Claims (3)

A display unit that is provided on the front side of the dial and displays a measurement amount in cooperation with an indicator attached to the dial; A self-luminous indicator that emits light,
The pointing portion includes a surface portion that extends in the pointing direction and is directly visible to an observer, a bottom surface portion that faces the surface portion and is narrower than the surface portion, and a bottom surface portion that extends from an edge of the surface portion. An inclined portion that is inclined so as to prevent light from being emitted toward the dial from the inside of the indication portion, and a colored layer applied to the bottom portion. Luminous pointer.   The self-luminous pointer according to claim 1, wherein the inclined portion is formed so as to be a total reflection surface with respect to the external light L incident on the indicator from the surface portion. In a vehicle display device having a dial, and a pointer that is provided on the front side of the dial and displays a measurement amount in cooperation with an index attached to the front of the dial,
The guide is a self-luminous guide according to claim 1 or 2,
A vehicular display device comprising a light source that emits light that is provided on the back side of the dial and that guides the light emitting indicator.

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