JP5481780B2 - Indicating instrument - Google Patents

Description

  The present invention relates to an indicator instrument mounted on a vehicle or the like, and displays information by an electronic indicator at the center of a pointer-type instrument composed of an indicator and a display board, and the indicator moves behind the indicator. The present invention relates to an indicating instrument for detouring and indicating the indicator portion of the display board.

  As this type of indicating instrument, for example, the one described in Patent Document 1 below is known. This indicator is composed of a display unit made up of a liquid crystal panel, a display board having an indicator part arranged along the outer periphery of the indicator, a pointer indicating the indicator part, and a display behind the indicator to drive the indicator. A driving member (rotating internal unit) disposed on the circuit board, a circuit board electrically connected to the driving member and mechanically fixed and held, and an instrument case for fixing and holding the circuit board and the display I have. The pointer is bent (so that the rotation base portion thereof is connected (press-fitted and fixed) to the drive shaft (pointer shaft) of the drive member and bypasses the rear side of the display unit so that the free end side reaches the front side of the display plate. In order to enable the operation of the bent pointer as described above, the interval between the display and the circuit board is set at an allowable interval that does not affect the operation of the pointer.

Further, as means for illuminating the display board, light rays of a light source composed of a light emitting diode or the like provided on the circuit board are guided to the display board. At this time, in order to keep the illumination efficiency high, in Patent Document 1, a light guide member is disposed between the light source and the display plate so that the indicator portion of the display plate is transmitted and illuminated.
JP 2007-199028 A

  By the way, in Patent Document 1 and the like, when the indicator portion of the display plate is transmitted and illuminated through the light guide member with the light beam from the light source, the indicator portion located directly above the light guide member is brightly illuminated. However, the indicator portion provided on the display plate positioned so as to overlap the display side may be difficult to receive the light beam from the light guide member, and an average illumination effect may not be obtained.

  Considering this point, it may be possible to form the light guide member by extending the light guide portion in the horizontal direction following the plate surface of the display plate, but the problem is that light leaks from the end of the light guide portion. There is.

  The present invention has been made paying attention to this point. The purpose of the present invention is to provide instructions capable of preventing light leakage from the light guide member while uniformly performing transmission illumination of the indicator portion provided on the display panel. To provide an instrument.

In order to solve the above-described problems, the present invention provides a light source, a display plate that is transmitted and illuminated by the light beam emitted from the light source, and the display plate and the light source. A light guide member that guides the light beam emitted from the light source to the display plate, a display window portion provided in a central region of the display plate, and predetermined information from the display window portion disposed behind the display plate. In the indicating instrument comprising the indicator for displaying the light guide, the light guide member is provided with a light receiving portion that receives light from the light source and a light guide portion that extends along the plate surface of the display plate. A light-shielding frame is provided along an end surface of the light guide corresponding to the display window of the display board, and the window of the display window provided on the display is provided on the frame. Align the window frame edge of the display board along the frame edge A indicating instrument characterized by comprising providing a rising peripheral wall portion to enable. With this configuration, the indicator portion provided on the display plate can be brightly and uniformly transmitted and illuminated by the light guide portion formed on the light guide member, and the light guide portion tends to leak from the end surface of the light guide portion. Light rays can be shielded by a light shielding frame. In addition, the frame body has a rising peripheral wall part that can align the window frame edge of the display panel along the window frame edge of the display window part provided on the display panel by integral molding. The display plate can be set while being aligned with the rising peripheral wall portion of the frame, and at this time, a part of the irradiated light that has entered the display plate through the light guide member is part of the display plate. Leakage from the end face portion can be blocked by the rising peripheral wall portion, and there is an effect that the illumination effect can be favorably performed.

(Delete)

Further, in the indicating instrument according to claim 1, the indicating instrument according to claim 2 , wherein the surface of the frame is subjected to a non-glossy surface treatment. With this configuration, even if the irradiation light beam leaking from the light guide member or the display board is irradiated to the frame body, the light is diffused by the non-glossy surface treatment applied to the surface of the frame body, and the spot is brightened. Can be prevented in advance.

In addition, in the indicating instrument according to claim 1 or 2 , the indicating instrument according to claim 3 , wherein the light guide member and the frame are integrally formed. By configuring in this way, the number of parts can be reduced, and the strength of the parts can be increased by integrally forming with the light guide member as compared with a single frame.

Further, in the indicating instrument according to any one of claims 1 to 3 , in claim 4 , the light guide member includes a reflection surface for reflecting and guiding an irradiation light beam to the light guide unit. It is an indicating instrument characterized by comprising. By configuring in this way, it is possible to guide the light beam to the light guide part through the reflecting surface, and thereby it is possible to guide the light beam on the average along the display plate surface, and the indicator of the display plate The part can be brightly transmitted and illuminated.

In addition, as described in claim 5, the display device has a display device assembled and fixed to a frame-shaped holder, and a display window portion for visually recognizing the display device, along the outer periphery of the display window portion A display plate provided with an indicator, a drive member having a pivotable pointer shaft provided behind the display plate and the indicator, and fixed to the pointer shaft and applied to the display plate A pointer for instructing rotation along the indicator, a printed circuit board provided behind the holder, a light source provided on the printed circuit board, and interposed between the light source and the display board In an indicating instrument comprising a light guide member for transmitting and illuminating the indicator portion of the display panel, and an instrument case for fixing and holding the printed circuit board and the holder, the light guide member receives light from the light source. A light receiving part is provided Light guide section is provided extending along the plate surface of the panel, with light-shielding frame is provided along the end face of the light guide portion corresponding to the display window of the display panel, the frame Is provided with a rising peripheral wall portion along the edge of the window frame of the display window provided on the display panel, and the window frame edge of the display window can be aligned along the rising peripheral wall portion of the display window. It is the indicating instrument characterized by being provided in . With this configuration, the indicator portion provided on the display plate can be brightly and uniformly transmitted and illuminated by the light guide portion formed on the light guide member, and the light guide portion tends to leak from the end surface of the light guide portion. Light rays can be shielded by a light shielding frame. In addition, when assembling the indicating instrument, there is also an effect that the indicator side assembled and fixed to the holder can be easily assembled and fixed especially with the instrument case side as a reference. In addition, the frame body is provided with a rising peripheral wall portion that can align the window frame edge of the display plate along the window frame edge of the display window portion provided on the display plate by integral molding, The display board can be easily set while being aligned with the rising peripheral wall portion of the frame. At this time, a part of the irradiation light incident on the display board through the light guide member is displayed on the display board. Leakage from the end face portion of the light source can be blocked by the rising peripheral wall portion, and there is an effect that the illumination effect can be favorably performed.

(Delete)

The indicating instrument according to claim 5 is the indicating instrument according to claim 6 , wherein the surface of the frame is subjected to a non-glossy surface treatment. With this configuration, even if the irradiation light beam leaking from the light guide member or the display board is irradiated to the frame body, the light is diffused by the non-glossy surface treatment applied to the surface of the frame body, and the spot is brightened. Can be prevented in advance.

In addition, in the indicating instrument according to claim 5 or 6 , the indicating instrument according to claim 7 , wherein the light guide member and the frame are integrally formed. By configuring in this way, the number of parts can be reduced, and the strength of the parts can be increased by integrally forming with the light guide member as compared with a single frame.

Further, in the indicating instrument according to any one of claims 5 to 7 , in claim 8 , the light guide member includes a reflection surface for reflecting and guiding an irradiation light beam to the light guide unit. It is an indicating instrument characterized by comprising.

  By configuring in this way, it is possible to guide the light beam to the light guide part through the reflecting surface, and thereby it is possible to guide the light beam on the average along the display plate surface, and the indicator of the display plate The part can be brightly transmitted and illuminated.

Further, in the indicating instrument according to the present invention, the indicator portion provided on the display plate can be brightly and uniformly transmitted and illuminated by the light guide portion formed on the light guide member, so that it leaks from the end surface of the light guide portion. Can be shielded by a light-shielding frame, and the edge of the window frame of the display panel can be aligned along the edge of the window frame of the display window provided on the display panel. In this case, the display plate can be easily set while being aligned with the rising peripheral wall portion of the frame body. It is possible to block the leakage of a part of the irradiated light incident on the end face of the display board by the rising peripheral wall, and to achieve a good lighting effect and achieve the intended purpose. be able to.

  Embodiments of an indicating instrument to which the present invention is applied will be described below with reference to the accompanying drawings.

  1 to 6 show a first embodiment of the present invention. FIG. 1 is a front view of an indicating instrument. FIG. 2 is a front view of a main part showing a state in which a front cover is removed and a part of a display plate is cut away in the indicating instrument located at the center in FIG. 3 is an exploded perspective view of the main part showing the outline of the indicator and the pointer-type instrument in FIG. 1, FIG. 4 is a sectional view taken along the line AA in FIG. 1, and FIG. 5 is a main part of the indicating instrument in FIG. FIG. 6 is an enlarged sectional view showing a main part of the display.

  The indicator instrument according to the present embodiment is composed of, for example, a combination meter mounted on a dashboard of an automobile. As shown in FIG. 1, an indicator instrument located at the center and a pointer-type instrument arranged so as to surround the indicator. Are arranged in a horizontal row. In FIG. 1, only the pointer-type meter G1 and the indicator D1 located in the center are shown in detail, and the pointer-type meters G2, G3 and the indicators D2, D3 located on both sides are paired and set to the left and right. Has been.

  Each pointer type instrument G1 to G3 and each display unit D1 to D3 are different in the content to be measured and displayed (type of measurement value, etc.), and their mechanical configurations are the same in the basic part. As shown in FIG. 1, representative of the meters G1 to G3 and the indicators D1 to D3, the indicator D1 is arranged at the center and the pointer type meter G1 is arranged so as to surround the periphery thereof (both will be described in detail later). Has been.

  In front of these pointer-type meters G1 to G3 and indicators D1 to D3, a shielding member (look-back member or mask member) 1 is disposed. The shielding member 1 is made of, for example, a light-shielding synthetic resin material (for example, black). Thus, an opening for exposing a required portion of the pointer-type meters G1 to G3 and concealing an unnecessary portion (window frame portion) is formed.

  A front cover 2 made of, for example, a translucent synthetic resin material (for example, colorless and transparent) is provided in front of the shielding member 1 to prevent entry of dust or the like.

  On the other hand, an instrument case 3, a circuit board 4, and a rear cover 5 are positioned behind (behind) the respective displays D1 to D3.

  The instrument case 3 is a rigid body composed of a bottomed frame body for assembling and fixing the pointer-type instruments G1 to G3 and the indicators D1 to D3, and directly covers the shielding member 1, the front cover 2, the circuit board 4, and the rear cover 5. Or it becomes a core component to mount | wear indirectly.

  The circuit board 4 is a hard circuit board disposed behind (bottom part) of the instrument case 3, and a driving member 6 made of, for example, a stepping motor constituting a part of the pointer-type instrument G1 is attached to the back of the circuit board 4. A rotatable drive shaft 7 (pointer shaft) provided on the drive member 6 extends forward through the circuit board 4, and a pointer 8 is press-fitted and fixed to the tip portion thereof. A pointer light source 9 made of, for example, a light emitting diode for illuminating the pointer 8 is disposed on the front side of the circuit board 4 and around the drive shaft 7 (pointer shaft).

  The rear cover 5 covers and protects the back surface of the circuit board 4.

  As described above, the rear cover 5, the circuit board 4, the instrument case 3, the pointer type instruments G1 to G3 and the indicators D1 to D3, the shielding member 1, and the front cover 2 constitute a combination meter.

  Next, the detailed structure of the pointer-type meter G1 and the indicator D1 located in the center will be described.

  The pointer-type instrument G1 is provided with the drive member 6 that is electrically connected to the rear side of the circuit board 4 and mechanically assembled and fixed. A drive shaft 7 provided on the drive member 6 is also provided. A pointer 8 is press-fitted and fixed to the tip of the (pointer shaft).

  The pointer 8 is positioned behind the display D1 and substantially in the first moving area that is not visually recognized from the viewer side, and is positioned in front of the display D1 and substantially in front of the display D1. A connecting member 8C that is divided into a second pointer portion 8B that exists in the second moving area that is visually recognized from the viewer side, and that connects the first pointer portion 8A and the second pointer portion 8B. The first pointer portion 8A and the second pointer portion 8B are both made of a transparent synthetic resin material, and the connecting member 8C is formed of, for example, a light-shielding synthetic resin material (for example, a black synthetic resin material). Has been.

  The first pointer portion 8A is composed of a rod-like body that detours in a crank shape from the side surface to the back surface of the display D1, and reflects the light incident from the pointer light source 9 in the longitudinal direction ( (Not shown) and a boss portion 8a of the first pointer portion 8A that extends along the drive shaft 7 and is press-fitted and fixed to the drive shaft 7, and a free end portion opposite to the boss portion 8a is 2 is opposed to the pointer portion 8B.

  The second pointer portion 8B is a bar-shaped indicating portion extending along the front surface (display plate described later) of the display D1, and the back surface or the front surface has a hot stamp layer (not shown) for determining the visual color. A colored layer is provided.

  The connecting member 8C has a substantially box shape that partially stores each of the first pointer portion 8A and the second pointer portion 8B.

  The pointer-type meter G1 configured as described above bypasses the rear of the display D1 (display plate described later) and reaches the front of the display D1 (display plate described later), and is a drive shaft provided on the drive member 6. 7 is rotated (rotated) around the outer periphery of the display D1 with the drive shaft 7 as a reference. When the pointer light source 9 is turned on, light is guided to the second pointer portion 8B through the first pointer portion 8A, and the second pointer portion 8B emits light.

The display D1 includes, for example, a liquid crystal display panel 10 (display element), a frame-shaped holder 11 that holds the liquid crystal display panel 10, a display plate 12 that is disposed on the front side of the frame-shaped holder 11, A printed circuit board 13 for installing a light source disposed behind the frame-shaped holder 11, a light source (light source) 14 for a liquid crystal display panel that illuminates the liquid crystal display panel 10 disposed on the printed circuit board 13, and a display plate And a display panel light source (light source) 15 for transmitting and illuminating 12. Each of the light sources 14 and 15 is made of a light emitting diode, for example.

  The liquid crystal display panel 10 which is a display element is composed of a liquid crystal display panel such as STN (Super Twisted Nematic) or TN (Twisted Nematic), for example, and is arranged in the center of the display unit U. Vehicle information including distance information and fuel consumption information and traffic information including, for example, navigation information). The liquid crystal display panel 10 itself is substantially rectangular when viewed from the front cover 2 side, but an arbitrarily shaped panel such as a trapezoid or a circle can be used.

  The display panel 12 is arranged along the outer periphery of the liquid crystal display panel 10 to expose an indicator portion 12A (scales, characters, etc.) to be supported by the pointer 8 and a required portion which is a display area of the liquid crystal display panel 10. The liquid crystal display panel 10 is visually recognized from the display window portion 12B. As a result, the display panel 12 is positioned on the upper outer periphery of the liquid crystal display panel 10. Will be disposed. Further, the display board 12 itself employs, for example, a normal transmissive printing display board in which the indicator portion 12A is formed to be transmissive and the others are light-shielding, and the outer shape viewed from the front cover 2 side is substantially D-shaped. It is.

  The frame-shaped holder 11 is made of, for example, a white synthetic resin material having good light reflectivity, and the outer shape viewed from the front cover 2 side is a substantially D-shape corresponding to the shape of the display panel 12. The frame-shaped holder 11 is partitioned by a wall-shaped partition 11A, and a first illumination chamber R1 corresponding to the display panel 12 and a second illumination chamber R2 corresponding to the liquid crystal display panel 10 are formed. .

  The first illumination chamber R1 is formed in an arc shape along the array shape of the indicator portions 12A, the display plate 12 is disposed on the front side, and the display plate light source 15 made of a light emitting diode is provided on the back side. Further, a light guide member 16 (light guide) is disposed between the display plate 12 and the display plate light source 15.

  In this example, the light guide member 16 (light guide) is formed in an arc shape along the first illumination chamber R1, and protrudes toward the display plate light source 15 at a position corresponding to the display plate light source 15. A light receiving portion 16A, which is a light introducing portion, and a light guide portion 16B provided to extend along the plate surface of the display plate 12 so as to illuminate and transmit the light received from the light receiving portion 16A through the indicator portion 12A of the display plate 12. And a reflecting portion 16C made of a conical recess for reflecting and guiding light to the light guide portion 16B.

  In addition, a light-shielding frame 17 serving as a window frame is provided in accordance with the inner wall of the display window portion 12B formed on the display panel 12 for visually recognizing the display area portion of the liquid crystal display panel 10, and the frame 17 The light guide member 16 is integrally formed by two-color molding when the light guide member 16 is molded, and is formed so as to shield the light beam leaking from the end surface portion of the light guide portion 16B of the light guide member 16 by the light-shielding frame body 17. doing.

The light shielding frame 17 is integrally formed with a rising peripheral wall portion 17A along the window frame edge 12C of the display window portion 12B provided on the display panel 12. Further, the light-shielding frame 17 has a non-glossy surface on the surface portion of the frame 17 that is at least a gap between the window frame edge 12C of the display panel 12 and the rising peripheral wall portion 17A of the light-shielding frame 17. In this embodiment, the texture processing 17B is applied as processing. In the first embodiment, the surface portion of the frame body 17 which is located in front of the display device D1 and is substantially visible from the viewer side is subjected to a graining process 17B. In this case, the surface portion of the frame body 17 that is a region of the gap portion with the rising peripheral wall portion 17A of the frame body 17, the outer side and inner side wall surface portions of the rising peripheral wall portion 17A, and the top surface portion of the rising peripheral wall portion 17A Each region is subjected to a graining process 17B.

  When the display panel light source 15 is turned on, the light is introduced into the light guide member 16 via the light receiving portion 16A, and is reflected radially by the reflecting portion 16C formed of a conical concave portion, whereby the light in the light guide portion 16B. Is propagated in the direction of the plate surface of the display plate 12 while being reflected and guided by the light source, whereby a relatively wide range of the indicator portion 12A can be transmitted and illuminated using a point light source. The light path from the light source 15 to the display panel 12 is partitioned by the first illumination room R1 (partition portion 11A) so that light leakage and loss can be suppressed.

  On the other hand, in this example, the second illumination room R2 is formed in a quadrangular pyramid shape that is wide on the front side and narrow on the opposite side, and the liquid crystal display panel 10 is disposed on the wide front side, and becomes narrow. A light source 14 for a liquid crystal display panel is disposed on the back side.

  When the light source 14 for the liquid crystal display panel is turned on, the light directly illuminates the liquid crystal display panel 10 or is repeatedly reflected in the second illumination chamber R2, and as a result, the liquid crystal display panel 10 using a point light source. The entire area can be illuminated, and the light path from the light source 14 for the liquid crystal display panel to the liquid crystal display panel 10 is partitioned by the second illumination room R2 (partition 11A), thereby It is configured so that leakage and loss can be suppressed.

  A light source installation printed circuit board 13 has a liquid crystal display panel light source 14 and a display panel light source 15 mounted on the front side thereof, and is assembled and fixed behind a frame-shaped holder 11 via fixing screws 18. Thus, the liquid crystal display panel light source 14 and the display panel light source 15 are positioned in the respective illumination chambers R1 and R2.

Here, the frame-shaped holder 11 serves as a core part for coupling the liquid crystal display panel 10, the display plate 12, the light guide member 16, and the printed circuit board 13 (the liquid crystal display panel light source 14 and the display plate light source 15). Is. In this example, the liquid crystal display panel 10, the display plate 12, the light guide member 16, and the printed board 13 are directly coupled to the frame-shaped holder 11 by hooks, double-sided tape, or the like to form the display D1. However, it may be indirectly coupled through another member. In this example, the screw 18 is used for assembling the printed circuit board 13 and the frame-shaped holder 11. However, the fixing member and the fixing means may be any means without being limited to the coupling of these components.

  The unitized display D1 configured as described above is attached and fixed to the instrument case 3 in a cantilever state through the mounting legs 11B formed on the frame-shaped holder 11, as shown in FIGS. The

  That is, in the first embodiment, an area located on the back side of the frame-shaped holder 11 and located in a non-moving area outside the movement instruction area (rotation instruction area) of the pointer 8 (FIG. 1, FIG. 3), the mounting leg 11B is formed so as not to hinder the movement of the pointer 8. In this example, the mounting leg 11B is a columnar protrusion extending to the instrument case 3 side. Inside, a hole portion 11C into which a fixing member 19 made of, for example, a tapping screw is screwed is formed.

  Further, in this embodiment, a position adjacent to the lower limit side movement area of the pointer 8 in a non-movement area deviating from the movement instruction area of the pointer 8 and positioned on the extension of the instruction area, The attachment leg portions 11B are provided at two points, that is, the position adjacent to the upper limit side movement region of the pointer 8 and the adjacent position.

  On the other hand, at the position of the instrument case 3 corresponding to each mounting leg portion 11B provided on the holder 11, two fixed receiving portions 3A that can be received while aligning the respective mounting leg portions 11B are formed. In this example, the fixed receiving portion 3A is formed in a cylindrical shape that opens toward the mounting leg portion 11B made of a columnar projecting portion, and a concave portion 3B in which the mounting leg portion 11B can be inserted and positioned is formed therein. A hole 3C through which the fixing member 19 can be inserted is formed at the bottom of the recess 3B. The rear cover 5 located behind the instrument case 3 is provided with a through hole 5A through which the fixing member 19 is inserted.

  Further, the two mounting leg portions 11B provided on the holder 11 along the two fixed receiving portions 3A provided on the instrument case 3 side can be assembled and held while being easily aligned. It is provided so that it can be fixedly supported in a stable state by two-point support.

Therefore, in the first embodiment described above, the display D1 is assembled to the instrument case 3 by aligning the mounting leg 11B of the display D1 with the fixed receiving portion 3A (recess 3B) of the instrument case 3. After that, the rear cover 5 is overlapped behind the instrument case 3, and the holes 3C and 11C provided in the mounting legs 11B of the instrument case 3 and the holder 11 are aligned, and then the rear (rear cover) 5), the fixing member 19 is inserted into the through hole 5A and the hole 3C, and the distal end side of the fixing member 19 is screwed into the hole 11C of the holder 11. Thereby, the display D1 can be stably fixed in a cantilever state to the hard instrument case 3 made of a synthetic resin material without interfering with the operation of the pointer 8.

  That is, when assembling the indicating instrument, there is an effect that the indicator D1 side assembled and fixed to the holder 11 can be easily assembled and fixed especially with the instrument case 3 side as a reference. In order to achieve this, in the first embodiment, a mounting leg 11B is provided on the back side of the holder 11 on the side of the holder 11 located in the non-moving area outside the movement instruction area of the pointer 8, and the instrument case On the third side, a fixed receiving portion 3A that can be received while aligning the mounting leg portion 11B is provided at a position opposite to the mounting leg portion 11B, and thus, along the fixed receiving portion 3A provided on the instrument case 3 side. The mounting leg 11B provided on the holder 11 can be assembled and held while easily aligning it, so that it is stable in a cantilever state with respect to the instrument case 3 side while improving the assembling work efficiency. The fixing strength can be sufficiently maintained.

  Further, in the first embodiment, the light source installation printed circuit board 13 disposed on the back side of the holder 11 is sandwiched and held between the fixed receiving portion 3A and the holder 11. As a result, the printed circuit board 13 can be assembled and fixed behind the holder 11 via screws 18 and can be held between the holder 11 and the fixed receiving portion 3A provided on the instrument case 3 side. The fixing strength of the printed circuit board 13 can be further increased without providing the fixing means.

  When the display panel light source 15 is turned on, the light is introduced into the light guide member 16 through the light receiving portion 16A which is a light introducing portion, and is reflected radially by the reflecting portion 16C formed of a conical concave portion. Thus, the light propagates in the direction of the plate surface of the display plate 12 while being reflected and guided in the light guide portion 16B, whereby a relatively wide range of the indicator portion 12A is transmitted and illuminated using a point light source.

At this time, when the light source 15 for the display panel is turned on, the light-shielding frame 17 that becomes the window frame of the display window portion 12B formed on the liquid crystal display panel 10 when the light guide member 16 is formed is formed by two-color molding. Therefore, the light beam that is about to leak from the end face of the light guide portion 16B of the light guide member 16 can be shielded by the light-shielding frame 17, and the periphery of the display panel 12 is partially and brightly illuminated. Only the surface of the display panel 12 can be clearly transmitted without being transmitted.

In the first embodiment, the light-shielding frame 17 is integrally formed with a rising peripheral wall portion 17A along the window frame edge 12C of the display window portion 12B provided on the display panel 12. Therefore, the light beam leaking from the window frame edge 12C of the display panel 12 can be blocked by the rising peripheral wall portion 17A, and the illumination effect can be kept good. In addition, the number of parts can be reduced by integrally molding the light guide member 16 and the frame body 17 and the strength of the parts can be increased by integrally molding the light guide member 16 as compared with a single frame body. There is also an effect that can be done.

  Further, the light-shielding frame 17 has a non-glossy surface treatment on the surface portion of the frame 17 which is a gap portion between the window frame edge 12C of the display panel 12 and the rising peripheral wall portion 17A of the light-shielding frame 17. Therefore, even if the irradiation light beam leaking from the light guide member 16 or the display panel 12 is irradiated to the frame body 17, the surface processing 17B applied to the surface of the frame body 17. Therefore, it is possible to prevent the light from being diffused and brightened in a spot manner.

    FIGS. 7 to 13 show a second embodiment of the present invention. FIG. 7 is a front view showing a main part of an indicating instrument in which a front cover is removed and a part of a display board is cut out, and FIG. FIG. 9 is an exploded cross-sectional view showing a state before the pointer-type instrument and the display unit are assembled in FIG. 7, FIG. 9 is a longitudinal cross-sectional view showing the main part in the assembled state of the indicator instrument, and FIG. FIG. 11 is a cross-sectional view of the main part showing the assembled state of the indicator instrument, and FIG. 12 is an exploded state of the display board of the display of FIG. FIG. 13 is an enlarged cross-sectional view showing the main part of the display, and the same parts and equivalent parts as those in the first embodiment described above are given the same reference numerals for explanation.

  In the figure, as the unitized display D1 in the second embodiment, a structure substantially similar to that of the first embodiment described above is employed.

The display D1 includes, for example, a liquid crystal display panel 10 (display element), a frame-shaped holder 11 that holds the liquid crystal display panel 10, a display plate 120 that is disposed on the front side of the frame-shaped holder 11, A printed circuit board 13 for installing a light source disposed behind the frame-shaped holder 11, a light source (light source) 14 for a liquid crystal display panel that illuminates the liquid crystal display panel 10 disposed on the printed circuit board 13, and a display plate It is comprised with the light source (light source) 15 for the display board for illuminating 120. Each of the light sources 14 and 15 is made of a light emitting diode, for example.

  The display panel 120 is arranged along the outer periphery of the liquid crystal display panel 10, and exposes an indicator part 120 </ b> A (scale, letters, numbers, etc.) to be supported by the pointer 8 and a required part that is a display area of the liquid crystal display panel 10. A display window portion 120B formed with a notch for viewing, and the liquid crystal display panel 10 is visually recognized from the display window portion 120B. As a result, the display panel 120 is positioned on the upper outer periphery of the liquid crystal display panel 10. It will be arranged. The display board 120 itself employs, for example, a normal transmissive printing display board in which the indicator portion 120A is transmissive and the others are light-shielding, and the outer shape viewed from the front side is substantially D-shaped. .

  The frame-shaped holder 11 is made of, for example, a white synthetic resin material having good light reflectivity as in the first embodiment, and the outer shape viewed from the front side of the indicating instrument corresponds to the shape of the display plate 120. It is a substantially D-shape. The frame-shaped holder 11 is partitioned by a wall-shaped partition 11A, and a first illumination chamber R1 corresponding to the display panel 120 and a second illumination chamber R2 corresponding to the liquid crystal display panel 10 are formed. .

  The first illumination chamber R1 is formed in an arc shape along the array shape of the indicator portions 120A, the display plate 120 is disposed on the front side, and the display plate light source 15 made of a light emitting diode is provided on the back side. Further, a light guide member 160 (light guide) is disposed between the display plate 120 and the display plate light source 15.

  Here, the display plate 120 made of a sheet-like resin substrate in which the indicator portion 120A is formed to be transparent in advance by means of printing or the like and the ground color portion other than that is formed to have a light-shielding property is a molding device having a predetermined shape ( 3D modeling is imparted by being drawn and formed by a molding apparatus. For example, the drawing plate 120 is subjected to pressure forming while heating the display plate 120 in which the transmissive indicator portion 120A and the light-shielding ground color portion are produced in advance by means such as screen printing. Drawing is performed, and the entire display panel 120 is formed in a desired uneven shape.

  At this time, the outer peripheral portion of the display panel 120 to which the indicator portion 120A is applied is formed with an inclined surface portion 121 that is inclined toward the center side and recessed toward the back side, and a mountain fold and a valley fold are formed at the center portion. A stepped portion 122 is formed. On the surface of the inclined surface portion 121 provided to be inclined so as to surround the stepped portion 122 at the center, an indicator portion 120A composed of scales, letters, numbers, and the like capable of transmitting illumination is arranged. The indicator 120A is formed so that a sense of depth can be obtained.

  The light guide member 160 is disposed so as to overlap with the shape of the display panel 120 thus drawn. In this case, in the second embodiment, the light guide member 160 is formed in an arc shape along the first illumination chamber R1 in substantially the same manner as in the first embodiment described above. In order to illuminate the indicator 120A of the display panel 120 with the light receiving part 160A, which is a light guiding part protruding toward the light source 15 for the display board, and the light received from the light receiving part 160A. A light guide 160B that extends in the horizontal direction along the plate surface of the inclined surface 121 of the display panel 120, and a conical shape that is positioned directly above the light receiving unit 160A and is reflected and guided to the light guide 160B. The reflection part 160C which consists of a recessed part is formed. In this case, in particular, the thickness of the light guide 160B is set so that the light guide 160B is thick on the outside and thin on the inside according to the slope of the slope 121 of the display panel 120.

  In addition, a light-shielding frame 170 serving as a window frame is provided in accordance with the inner wall of the display window 120B formed on the display panel 120 for visually recognizing the display area portion of the liquid crystal display panel 10. The light guide member 160 is integrally formed by two-color molding when the light guide member 160 is molded, and is formed so as to shield the light beam that leaks from the end surface portion of the light guide portion 160B of the light guide member 160 by the light-shielding frame 170. doing.

In this case, in the second embodiment, the light-shielding frame 170 has an edge of the window frame of the display window 120B provided on the display panel 120 as shown in the cross section of FIG. 11 or FIG. A rising peripheral wall portion 170A is integrally formed along the edge portion of the stepped portion 122 which is 120C.

  Further, the light-shielding frame 170 has at least a non-gloss on the surface portion of the frame 170, which is a gap between the window frame edge 120C of the display panel 120 and the rising peripheral wall 170A of the light-shielding frame 170. It is formed so as to be subjected to a textured process 170B which is a surface treatment. In this case, in the same manner as in the first embodiment described above, the surface portion of the frame 170 serving as a gap portion with the rising peripheral wall 170A of the frame 170, and the outer and inner side wall surface portions of the rising peripheral wall 170A. And the embossing 170B is given to the area | region with the top | upper surface part of 170 A of standing | starting surrounding wall parts, respectively.

In the second embodiment having the above-described configuration, the display D1 is attached to the instrument case 3 in the same manner as in the above-described first embodiment by attaching the mounting leg 11B of the display D1. The instrument case 3 is inserted into the fixed receiving portion 3A (concave portion 3B) while being aligned, and then the rear cover 5 is overlapped behind the instrument case 3 so that each of the instrument case 3 and the mounting leg 11B of the holder 11 is provided. The holes 3C and 11C are aligned, and then the fixing member 19 is inserted into the through hole 5A and the hole 3C from the back (rear cover 5 side), and the distal end side of the fixing member 19 is further connected to the hole of the holder 11 This is done by screwing to 11C. Thereby, the display D1 can be stably fixed in a cantilever state to the hard instrument case 3 made of a synthetic resin material without interfering with the operation of the pointer 8.

When the display panel light source 15 is turned on, the light is introduced into the light guide member 160 via the light receiving portion 160A, which is a light introducing portion, and is reflected radially by the reflecting portion 160C formed of a conical recess. Thus, the light propagates in the direction of the surface of the display plate 120 while being reflected and guided in the light guide portion 160B, whereby a relatively wide range of the indicator portion 120A is transmitted and illuminated using a point light source. At this time, when the light source 15 for the display panel is turned on, the light-shielding frame 170 is integrally formed by two-color molding when the light guide member 160 is molded. The light beam that leaks from the end face can be shielded by the light-shielding frame 170, and only the indicator portion 120A on the surface of the display panel 120 is clearly displayed without the periphery of the display panel 120 being partially and brightly illuminated. Transmitted illumination is possible. In addition, since the light-shielding frame 170 is integrally formed with a rising peripheral wall 170A along the window frame edge 120C of the display window 120B provided on the display 120, the display 120 The light beam leaking from the edge 120C of the window frame can be blocked by the rising peripheral wall portion 170A, whereby the illumination effect can be kept good. Further, by integrally molding the light guide member 160 and the frame body 170, the number of parts can be reduced, and the strength of the parts can be increased by integrally molding the light guide member 160 as compared with a single frame body. There is also an effect that can be done.

  Further, the light-shielding frame 170 has a texture 170B on the surface portion of the frame 170, which is a gap between the window frame edge 120C of the display panel 120 and the rising peripheral wall 170A of the light-shielding frame 170. Therefore, even if the irradiation light beam leaking from the light guide member 160 or the display panel 120 is irradiated to the frame body 170, the texture processing is a non-glossy surface treatment applied to the surface of the frame body 170. It is possible to prevent light from being diffused by 170B and becoming brighter in a spot manner.

  In the second embodiment, since the entire display panel 120 that has been subjected to the drawing process is formed in a desired uneven shape, the outer peripheral portion of the display panel 120A on which the indicator portion 120A is applied is particularly the center. Since the inclined surface portion 121 is formed so as to be recessed toward the back side toward the side, and the step portion 122 by mountain fold and valley fold is formed at the center portion, the step portion 122 at the center portion is used as a reference. An indicator portion 120A made of scales, letters, numbers, etc. that can be transmitted and illuminated is arranged on the surface of the inclined surface portion 121 provided to be inclined so as to surround the outside, and a sense of depth can be obtained by each indicator portion 120A. The display panel 120 that is three-dimensionally drawn can enhance the feeling of depth while enhancing the texture, and an indicator portion is provided on the inclined surface portion 121 of the display board 120. With performing 20A, further sense of depth is facilitated by applying the respective display indicator portion to the flat surface portion 123.

  In addition, this invention is not limited to the Example mentioned above, A various deformation | transformation implementation is possible in the range of the summary of this invention. For example, in each of the above-described embodiments, the light-shielding frame body is provided by integral molding along the end surface portion of the light guide portion provided in the light guide member corresponding to the display window portion of the display plate. Even if it is formed by a body, substantially the same effect can be obtained, and when the light beam leaking from the end surface of the light guide part is shielded by the light-shielding frame body, the height dimension of the frame body or the frame body The light leakage can be satisfactorily blocked by appropriately setting the dimensions of the rising peripheral wall portion of the guide, and by emphasizing the width and thickness dimensions of the frame, each of the pointer-type meters G1 to G3 It is possible to emphasize the boundaries between the displays D1 to D3, and to improve the appearance of the indicating instrument. In addition, in each embodiment as a non-glossy surface treatment to be applied to the surface of the frame body, it was applied to the surface of the frame body by embossing. It is possible to obtain the same effect even if the non-glossy surface treatment is performed. Further, as the non-glossy surface treatment, for example, the roughness of the rough surface of the embossing processing is suppressed so that the reflection of light is suppressed and the antiglare effect is satisfied. As long as it is uneven, the density and roughness of the rough surface can be changed stepwise as the rough surface processing, and the appearance can be improved by the non-glossy surface treatment.

FIG. 1 is a front view of an indicating instrument showing a first embodiment of the present invention. FIG. 2 is a front view of the main part showing a state in which the front cover is removed and a part of the display plate is notched and formed in the indicating instrument located at the center in FIG. FIG. 3 is an exploded perspective view of the main part showing an outline of the indicator and the pointer-type meter in FIG. 1. 4 is a longitudinal sectional view taken along line AA in FIG. FIG. 5 is a cross-sectional view showing the main part of the indicating instrument of FIG. FIG. 6 is an enlarged cross-sectional view showing a main part of the display. FIG. 7 shows a second embodiment of the present invention, and is a front view of a main part of an indicating instrument in which a front cover is removed and a part of a display board is cut out. FIG. 8 is an exploded cross-sectional view showing a state before assembly of the pointer-type meter and the display of FIG. FIG. 9 is a longitudinal sectional view showing a main part in an assembled state of the indicating instrument. 10 is a cross-sectional view of a main part showing a state in which the display plate of the display shown in FIG. 9 is disassembled. FIG. 11 is a cross-sectional view showing a main part in an assembled state of the indicating instrument. 12 is a cross-sectional view of a main part showing a state in which the display plate of the display of FIG. 11 is disassembled. FIG. 13 is an enlarged cross-sectional view showing a main part of the display.

1 Shielding member
2 Front cover 3 Instrument case 3A Fixed receiving part 3B Recess 3C Hole 4 Circuit board 5 Rear cover 5A Through hole 6 Drive member 7 Drive shaft (pointer shaft)
8 Pointer 8A First pointer portion 8a Boss portion 8B Second pointer portion 8C Connecting member 9 Light source for pointer 10 Liquid crystal display panel (display element)
DESCRIPTION OF SYMBOLS 11 Frame-shaped holder 11A Partition wall 11B Mounting leg part 11C Hole part 12 Display board 12A Index part 12B Display window part 12C Window frame edge 13 Printed circuit board 14 Light source for liquid crystal display panel (light source)
15 Light source for display panel (light source)
16 Light guide member (light guide)
16A light receiving part (light introducing part)
16B Light guide portion 16C Reflection portion 17 Frame 17A Standing peripheral wall portion 17B Texture processing (non-glossy surface treatment)
18 screw 19 fixing member 120 display board 120A indicator part 120B display window part 120C edge of window frame 121 inclined surface part 122 step part 160 light guide member (light guide)
160A light receiving part (light introducing part)
160B Light guide 160C Reflector 170 Frame 170A Standing peripheral wall 170B Texture processing (non-glossy surface treatment)
D1, D2, D3 Display G1, G2, G3 Pointer-type instrument R1 First illumination room R2 Second illumination room

Claims (8)

A light source, a display plate that is transmitted and illuminated by irradiation light from the light source, a light guide member that is disposed between the display plate and the light source and guides the irradiation light from the light source to the display plate, and In the indicating instrument comprising a display window provided in a central region of the display panel, and a display that is disposed behind the display panel and displays predetermined information from the display window, the light guide member includes: A light receiving portion that receives light from the light source is provided, a light guide portion that extends along a plate surface of the display plate is provided, and along an end surface portion of the light guide portion that corresponds to a display window portion of the display plate. A light-shielding frame is provided, and the frame can be aligned with the window frame edge of the display plate along the window frame edge of the display window provided on the display plate. indicator, characterized by comprising providing a rising peripheral wall .   The indicator instrument according to claim 1, wherein the surface of the frame is subjected to a non-glossy surface treatment.   The indicator instrument according to claim 1 or 2, wherein the light guide member and the frame are integrally molded.   The indicator instrument according to any one of claims 1 to 3, wherein the light guide member is provided with a reflection surface for reflecting and guiding an irradiation light beam to the light guide section. A display device in which a display element is assembled and fixed to a frame-shaped holder; a display window portion for visually recognizing the display device; and a display plate provided with an indicator portion along an outer periphery of the display window portion; A driving member provided behind the display board and the display and having a rotatable pointer shaft, and fixed to the pointer shaft, and instructed to rotate along the indicator portion provided on the display board. An indicator, a printed circuit board provided behind the holder, a light source provided on the printed circuit board, and a light source provided on the printed circuit board, and interposed between the light source and the display board, for transmitting and illuminating the indicator portion of the display board In the indicating instrument comprising a light guide member, and an instrument case for fixing and holding the printed circuit board and the holder, the light guide member is provided with a light receiving portion that receives light from the light source, and the display plate Extending along the plate surface Light guide section is provided, along with light shielding frame along the end face of the light guide portion corresponding to the display window of the display panel is provided, on the frame body, provided on the panel An indicator instrument comprising a rising peripheral wall portion that enables alignment of the window frame edge of the display plate along the window frame edge of the display window .   6. The indicating instrument according to claim 5, wherein the surface of the frame is subjected to a non-glossy surface treatment.   The indicating instrument according to claim 5 or 6, wherein the light guide member and the frame are integrally formed. The indicator instrument according to any one of claims 5 to 7, wherein the light guide member is provided with a reflection surface for reflecting and guiding an irradiation light beam to the light guide section.

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