JP2011085554A - Instrument device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an instrument device capable of three-dimensional display on the outside of a scale. <P>SOLUTION: The measuring device includes a pointer, a display section provided with a scale section to be indicated by the pointer, a light source arranged in the rear of the display section for illuminating the display section, and a facing member arranged in front of the display section and having a tubular member surrounding an operating range of the pointer. The scale section transmits and emits a light from the light source; the inner wall of the tubular member of the facing member has a strong reflecting region that reflects the light from the light source, emitted from the scale section more strongly than another region adjacent at the inner wall. The strong reflection region is a linear region, extending along a direction perpendicular to the circumferential direction of the inner wall and has one end extending toward the scale section. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an instrument device mounted on, for example, a vehicle such as a motorcycle or an automobile, a ship, or a construction machine.

  For example, Patent Document 1 discloses a light guide body provided on a dial, a light emitting diode that enters light into the light guide body, and a light emitting diode that is provided in the light guide body and emits light from the light emitting diode. There is disclosed an instrument device having a configuration in which a plurality of recesses are reflected and emitted and reflected by the driver to be visually recognized by the driver, and each recess forms a part of the scale of the vehicle speedometer. And in patent document 1, it is described that such a structure can give a three-dimensional effect to the scale display.

JP 2003-302262 A

  However, since the instrument device described in Patent Document 1 only gives a stereoscopic effect to the display of the recesses formed on the transparent plate (that is, the display of the scale), the display outside the scale has a stereoscopic effect. It did not lead to.

  The present invention has been made in view of the above points, and an object of the present invention is to provide an instrument device capable of displaying a stereoscopic effect outside the scale.

In order to solve the above problems, the instrument device according to the present invention is:
Guidelines,
A display unit provided with a scale unit to be directed by the pointer;
A light source disposed behind the display unit and illuminating the display unit;
A turn-back member disposed in front of the display unit and having a cylindrical member surrounding the operating range of the pointer,
The scale portion transmits and emits light from the light source,
The inner wall of the tubular member of the facing member has a strong reflection region that reflects light from the light source emitted by the scale portion more strongly than other adjacent regions on the inner wall,
The strong reflection region is a linear region extending along a direction perpendicular to the circumferential direction of the inner wall, and one end extends toward the scale portion.

  The instrument device according to the present invention can display a stereoscopic effect outside the scale.

It is a schematic front view of the instrument apparatus which concerns on 1st Embodiment of this invention. It is a partial cross section figure of the speedometer of the measuring device which concerns on 1st Embodiment of this invention. It is a schematic front view of the instrument device when the speedometer according to the first embodiment of the present invention is illuminated. It is a figure which shows an example of the turning member of the speedometer which concerns on 1st Embodiment of this invention. It is a figure which shows the other example of the turning member of the speedometer which concerns on 1st Embodiment of this invention. It is a figure which shows the other example of the turning member of the speedometer which concerns on 1st Embodiment of this invention. It is a schematic front view of the other example of the meter apparatus which concerns on 1st Embodiment of this invention. It is a schematic front view of the instrument apparatus which concerns on 2nd Embodiment of this invention. It is a partial cross section figure of the speedometer of the measuring device which concerns on 2nd Embodiment of this invention. It is a figure which shows the relationship between the turning member and light guide member of the speedometer of the measuring device which concerns on 2nd Embodiment of this invention.

  Embodiments according to the present invention will be described with reference to the drawings. In addition, this invention is not limited by the following embodiment and drawing. It goes without saying that changes (including deletion of components) can be added to the contents of the following embodiments and drawings. In the drawings, when a plurality of the same constituent elements are drawn, only some of them may be denoted by reference numerals.

  Further, in the following description, in order to facilitate understanding of the present invention, descriptions of known unimportant technical matters are appropriately omitted. In the following embodiment, the lid side is referred to as the front, and the opposite side is referred to as the rear (see FIG. 2 and the like). The front surface refers to the front surface of the component, and the back surface refers to the opposite surface.

(First embodiment)
As shown in FIG. 1, the instrument device 1 according to the present embodiment includes a speedometer 100, a first display device 191, and a second display device 192. These are housed in a housing 1a of the instrument device 1. The housing 1a has a transparent front surface, and the user can visually recognize the speedometer 100, the first display device 191 and the second display device 192.

  The instrument device 1 includes a control unit (not shown) (eg, a CPU (Central Processing Unit), a storage device, etc.). The control unit is connected to an external device such as an ECU (Engine Control Unit) of the vehicle, and vehicle information supplied from the external device (for example, vehicle traveling speed, remaining amount of fuel, engine speed, lighting of lights, Various control signals are generated on the basis of information specifying whether the instrument is on. A control part supplies the produced | generated various control signals to the speedometer 100, the 1st display apparatus 191 and the 2nd display apparatus 192, and controls these operation | movement.

  The first display device 191 and the second display device 192 are configured by an appropriate display device such as a liquid crystal display device. The first display device 191 and the second display device 192 display vehicle information such as the engine speed and the remaining amount of fuel based on a control signal supplied from the control unit. Since the 1st display device 191 and the 2nd display device 192 are comprised by a well-known display device, detailed description is abbreviate | omitted.

  As shown in FIGS. 1 and 2, the speedometer 100 includes a pointer 110, a circuit board 120, a support member 130, a display unit 140, a turning member 150, and a lid body 160. In FIG. 2, the pointer 110 and the like are not shown as a cross section for easy understanding.

  The speedometer 100 displays the traveling speed of the vehicle by moving the pointer 110 based on a control signal supplied from the control unit. In addition, the speedometer 100 causes the first light source 124a and the second light source 124b to emit light based on a control signal supplied from the control unit, thereby illuminating a predetermined area of the speedometer 100.

  The pointer 110 is formed of various synthetic resins and points to a scale portion 144 described later.

  The circuit board 120 includes a board body 121, a pointer driving unit 122 mounted on the back side of the board body 121, a rotating shaft 123 rotated by the pointer driving unit 122, and a first board mounted on the surface side of the board body 121. 1 light source 124a and second light source 124b.

  The substrate body 121 is a rigid circuit board in which a driving circuit for driving the pointer driving unit 122, a light emitting circuit for emitting the first light source 124a and the second light source 124b, and the like are formed on a flat glass epoxy base material. 120. The drive circuit and the light emitting circuit are each composed of a wiring pattern, a resistor, a capacitor, and the like. The drive circuit drives the pointer drive unit 122 based on a control signal supplied from the control unit. The light emitting circuit causes the first light source 124a and the second light source 124b to emit light based on a control signal supplied from the control unit.

  The pointer driving unit 122 includes a movable magnet type driving device, a stepping motor, and the like. The pointer driving unit 122 is connected to a rotating shaft 123 inserted into a shaft hole 121a (through hole) formed in the circuit board 120. A pointer 110 is attached to the rotating shaft 123. A lower portion of the pointer 110 is inserted into a pointer insertion hole 140 a formed in the display unit 140. The pointer 110 is rotated by the rotation of the rotating shaft 123.

  The drive circuit of the substrate body 121 drives the pointer drive unit 122 based on the control signal supplied from the control unit, and rotates the rotary shaft 123 at a rotation angle corresponding to the control signal. In response to the rotation of the rotating shaft 123, the pointer 110 also rotates. As a result, the pointer 110 rotates at a predetermined rotation angle corresponding to the control signal, that is, according to the traveling speed of the vehicle, and indicates between the scale parts 144 described later or the scale parts 144 adjacent to each other. The user recognizes the traveling speed of the vehicle by viewing the instruction of the pointer 110.

  The first light source 124a and the second light source 124b are each configured by one or more LEDs (Light Emitting Diodes) or the like. The first light source 124 a and the second light source 124 b illuminate (illuminate) the display unit 140 from the rear (back) side by emitting light. The first light source 124a mainly illuminates a scale portion 144 described later. The second light source 124b mainly illuminates the pointer 110. Since the scale portion 144 and the pointer 110 are brightened by such illumination, the user can visually recognize the scale portion 144 and the pointer 110 even in a dark place. The first light source 124 a and the second light source 124 b are disposed behind (on the back of) the display unit 140.

  The support member 130 is made of a hard synthetic resin or the like, and is fixed on the circuit board 120. The support member 130 supports the display unit 140. As a result, the circuit board 120 and the display unit 140 are fixed apart from each other. The support member 130 has a shape that does not interfere with the illumination of the first light source 124a and the second light source 124b, and is disposed at a position that does not interfere with the illumination of the first light source 124a and the second light source 124b.

  The display unit 140 includes a sheet-like base material 141, a first layer 142 formed on the surface of the base material 141, and a second layer 143 formed on the surface of the first layer 142. . In addition, the display unit 140 includes a scale unit 144 that is an instruction target of the pointer 110. The center of the display unit 140 includes a pointer insertion hole 140a into which the pointer 110 is rotatably inserted.

  The base material 141 is formed of a synthetic resin and has translucency. In particular, the base material 141 is desirably transparent. Here, the base material 141 is a disk-shaped member having a through hole (a hole corresponding to the pointer insertion hole 140a) formed in the center. The base material 141 may have other shapes.

  The first layer 142 is formed by a method of printing and coating a predetermined ink on the surface of the substrate 141. For example, the first layer 142 is a layer that transmits part or all of the light emitted from the first light source 124a.

  The second layer 143 is formed by a method of printing, painting, or the like on the surface of the first layer 142 with a predetermined ink. For example, the second layer 143 is a layer that represents the ground color of the display unit 140. The background color of the display unit 140 is a color of a portion other than the scale unit 144 in the display unit 140 and is basically different from the scale unit 144.

  The second layer 143 is not formed in a predetermined region. Hereinafter, the region where the second layer 143 is not formed is referred to as an extraction region 143a. A plurality of punched regions 143a are formed, and each punched region 143a is formed in a scale shape (may be other shapes including scales). Therefore, the first layer 142 is exposed in the blank region 143a, and each scale is represented by each blank region 143a. Each scale portion 144 includes a first layer 142 exposed in the extraction region 143a, and a portion corresponding to the exposed portion (extraction region 143a) of the first layer 142 in the base material 141. The The portion corresponding to the exposed portion (extracted region 143a) of the first layer 142 is, for example, a portion immediately below the exposed portion (extracted region 143a) of the first layer 142. When viewed from the front side of the display unit 140, the extraction region 143 a becomes the scale unit 144 and becomes a transmission unit that transmits light.

  The color of the scale portion 144 is represented by the first layer 142. Further, when the scale portion 144 is illuminated by the first light source 124a, the color of the scale portion 144 is expressed by the color that the first layer 142 shines.

  The first layer 142 is, for example, a white layer. In this case, the scale 144 is white when the scale 144 is illuminated by the first light source 124a (when illuminated) and when it is not illuminated (when not illuminated). The first layer 142 may be, for example, another color. In this case, the color of the scale portion 144 is the color when illuminated and when not illuminated. The first layer 142 may be, for example, a layered structure of a layer of a color other than white formed on the surface of the substrate 141 and a white layer formed thereon, and in this case The scale portion 144 shines in a color other than the white color when illuminated, and becomes white when not illuminated.

  Note that a plurality of numbers, symbols, and the like may be expressed on the display unit 140 with the same configuration as the scale unit 144 described above.

  In addition, the second layer 143 basically has a light blocking property that does not transmit light, but may have a light transmitting property as appropriate. In this case, the second layer 143 also shines when illuminated. Further, the first layer 142 and the second layer 143 may be formed on the back surface side of the base material 141.

  The scale part 144 has translucency by the above structures. The scale portion 144 may have another structure as long as it has translucency. If the scale part 144 has translucency, the scale part 144 transmits light from the first light source 124a and emits the transmitted light during illumination. As a result, the scale portion 144 appears to shine to the user.

  Each scale portion 144 indicates a scale of the degree of traveling speed, and the vehicle is traveling at a speed corresponding to the scale portion 144 indicated by the pointer 110.

  The facing member 150 is disposed in front of the display unit 140, and is used for hiding a region outside the display region of the display unit 140 (a region including at least a part of the scale unit 144 and the operating range of the pointer 110) from the user. Is. Further, the turning member 150 is for making it easy to see the display area of the display unit 140.

  The facing member 150 is made of, for example, a hard synthetic resin, and includes a cylindrical member 151 having openings at both ends (here, a cylindrical member having a substantially circular cross section of the inner wall 151a). The cylindrical member 151 is disposed in front of the display unit 140, the end on the first opening 155 side abuts on the display unit 140, and surrounds a part of the scale unit 144 and the operating range of the pointer 110. The cylindrical member 151 has any shape as long as the cross section of the inner wall 151a has a cylindrical shape that surrounds at least a part of the scale portion 144 and the operating range of the pointer 110, such as a substantially circular shape, an elliptical shape, or a substantially rectangular shape. May be. The cylindrical member 151 has, for example, a closed shape in which the cross section of the inner wall 151a is configured by one or both of a curved line and a straight line in addition to a perfect circle. The cylindrical member 151 adds a sense of depth to the display of the speedometer 100.

  Further, the facing member 150 may have a structure further including a member other than the cylindrical member 151. Here, the facing member 150 (that is, the cylindrical member 151) is integrally formed of synthetic resin or the like, but the facing member 150 may be a combination of a plurality of members. The cylindrical member 151 may be a combination of a plurality of members.

  The first opening 155 of the tubular member 151 is formed narrower than the second opening 156 of the tubular member 151. As a result, the inner wall 151a of the cylindrical member 151 expands forward. Further, the inner wall 151 a overlaps the scale portion 144 and is in contact with the scale portion 144.

  The inner wall 151 a of the cylindrical member 151 includes a plurality of strong reflection regions 152 and a plurality of adjacent regions 153 that are regions other than the strong reflection region 152 and adjacent to the strong reflection region 152.

  During illumination, a part of the light from the first light source 124 a that has passed through the scale portion 144 (that is, the light from the first light source 124 a emitted from the scale portion 144) hits the turning member 150. The strong reflection region 152 reflects light from the first light source 124 a transmitted through the scale portion 144 more strongly than the adjacent region 153. Here, “strongly reflected” means, for example, that more light of different wavelengths is reflected, the reflectance of light is high, or both. For example, the strong reflection region 152 is more glossy than the adjacent region 153 and thus reflects light more strongly than the adjacent region.

  The strong reflection region 152 is a linear region extending along a direction perpendicular to the circumferential direction of the inner wall 151a (the direction surrounding the display unit 140), and one end extends toward the scale unit 144. Has reached. The strong reflection region 152 reaches the other end portion of the inner wall 151a from a position in contact with the scale portion 144 at one end portion of the inner wall 151a. The strong reflection region 152 is in contact with the scale portion 144.

  The strong reflection region 152 reflects light from the light source emitted from the scale 144 more strongly than the adjacent region 153, so that the reflected light enters the user's eyes. For this reason, the scale portion 144 and the strong reflection region 152 appear to shine in a streak shape (straight line) (see the scale portion 144 and the strong reflection region 152 in FIG. 3). As a result, when the user looks at the speedometer 100, the display by the speedometer 100 looks three-dimensional. Here, as an ideal state, the strong reflection regions 152 are all shining, but actually only a part of the regions on each strong reflection region 152 may be shining. Even in such a case, the scale portion 144 and the strong reflection region 152 appear to shine in streaks, and the display of the speedometer 100 looks three-dimensional. As described above, by forming such a strong reflection region 152 on the turning member 150 of the measuring instrument 1, the display on the outside of the scale portion 144 (that is, the inner wall 151a of the tubular member 151) becomes three-dimensional. In addition, since the strong reflection region 152 reflects light, the appearance of the display changes depending on the position of the user.

  Here, an example of a detailed shape of the strong reflection region 152 will be described with reference to FIGS.

  For example, as shown in FIG. 4, the strong reflection region 152a (corresponding to the strong reflection region 152) is configured by a recess (groove) in the inner wall 151a. In this case, for example, the surface (particularly the bottom surface of the groove) constituting the strong reflection region 152a (groove) is mirror-finished and the adjacent region 153 is textured. Thus, the strong reflection region 152a reflects light more than the adjacent region 153. The cross section of the groove may be a semicircle or the like in addition to a square. When the strong reflection region 152a is configured by the recesses (grooves), the light can easily be seen in a streak shape.

  For example, as shown in FIG. 5, the strong reflection region 152 b (corresponding to the strong reflection region 152) is configured by a convex portion of the inner wall 151 a. In this case, for example, the surface of the strong reflection region 152b (convex portion) is mirror-finished and the adjacent region 153 is textured. Thus, the strong reflection region 152b reflects light more than the adjacent region 153. The cross section of the convex part may be a semicircle or the like in addition to a quadrangle. Due to the convex portion (particularly when the cross section is a semicircle), the appearance of the display is easily changed depending on the position of the user.

  For example, as shown in FIG. 6, the strong reflection region 152c (corresponding to the strong reflection region 152) may be substantially the same height (including the same) as the adjacent region 153 on the inner wall 151a. That is, the inner wall 151a may be substantially flat. In this case, for example, the surface of the strong reflection region 152c is mirror-finished and the adjacent region 153 is textured. As a result, the strong reflection region 152 c reflects light more than the adjacent region 153. Since the strong reflection region 152c is flat (particularly when the cross section is a semicircle), the appearance of the display is easily changed depending on the position of the user.

  The strong reflection region 152 and the adjacent region 153 may be formed by processing the inner wall 151a such as printing or painting. For example, when the inner wall 151a is originally a surface that easily reflects light (for example, a surface having high reflectivity), the region that hits the adjacent region 153 of the inner wall 151a is coated with a predetermined ink, and the painted region is coated on the inner wall 151a. Alternatively, the strong reflection region 152 and the adjacent region 153 may be formed by making the region less reflective of light.

  Further, a member corresponding to the strong reflection region 152 is prepared in advance, and the facing member 150 (or the cylindrical member 151) is formed by insert molding in which the member is inserted, and the strong reflection region 152 and the inner wall 151a of the cylindrical member 151 are formed. The adjacent region 153 may be formed. Further, the width of the strong reflection region 152 may change in the front-rear direction.

  Returning to the description of FIG. 1 and FIG. 2, the lid body 160 is made of various synthetic resins, is transparent, and closes the second opening 156 of the facing member 150. This prevents dust and the like from entering the turning member 150.

  Moreover, the scale part 144 should just be located in the edge part vicinity of the strong reflection area | region 152. FIG. That is, the strong reflection region 152 only needs to extend toward the scale portion 144 at one end on the first opening 155 side, and does not have to be continuous with the scale portion 144. In this case, the scale portion 144 and the strong reflection region 152 shine in a streak shape between the scale portion 144 and the strong reflection region 152 when illuminated, but even in this case, the outside of the scale portion 144 ( That is, the display may be three-dimensional about the inner wall 151a) of the cylindrical member 151. However, the scale portion 144 is preferably in contact with the inner wall 151a of the cylindrical member 151 so as to overlap. As a result, the scale portion 144 and the strong reflection region 152 are in contact with each other, and the scale portion 144 and the strong reflection region 152 shine in a continuous streak shape during illumination, which improves the impression to the user. When the scale portion 144 and the strong reflection region 152 are not continuous, for example, the strong reflection region 152 has not reached the end of the inner wall 151a on the first opening 155 side, or the scale portion 144 is the cylindrical member 151 (inner wall 151a) is not overlapped (not in contact).

  Although the strong reflection area | region 152 is formed about all the scale parts 144, you may form about one part (a some scale part 144 is desirable) of each scale part 144 (refer FIG. 7).

  As described above, in the present embodiment, the strong reflection region 152 is formed on the facing member 150 of the instrument device 1, so that the outside of the scale portion 144 (that is, the inner wall 151 a of the tubular member 151 of the facing member 150) The display becomes three-dimensional. In particular, the inner wall 151a is usually treated so as not to reflect light in order to make the display unit 140, the pointer 110, and the like easier to see, but the strong reflection region 152 is formed on a part of the inner wall 151a. As a result, the display on the outside of the scale portion 144 can be made three-dimensional.

(Second Embodiment)
The instrument device 2 of the second embodiment is different in speedometer from the instrument device 1 of the first embodiment. The speedometer 200 of the instrument device 2 is different from the speedometer 100 in the display unit and the turning member (tubular member). In addition, in the following and drawing, the same code | symbol is attached | subjected about the thing similar to 1st Embodiment. Further, the detailed description of the same components as those in the first embodiment is omitted in accordance with the description of the first embodiment.

  As shown in FIGS. 8 and 9, the display unit 240 of the speedometer 200 includes a base material 241 (corresponding to the base material 141 of the first embodiment) and a first layer 242 (first of the first embodiment). Corresponding to the layer 142), a second layer 243 (corresponding to the second layer 143 of the first embodiment), and a light guide member 245. Here, the base plate 241, the first layer 242, and the second layer 243 constitute a display board used for display of the display unit 240. This display board has substantially the same configuration as the display unit 140 of the first embodiment. The display unit 240 has a configuration in which a light guide member 245 is further added to the display plate.

  The light guide member 245 has substantially the same outer shape as the display plate, and covers the surface of the display plate. The light guide member 245 includes a disk-shaped base material 245a having a central through hole 245c in the center, and a plurality of convex portions 245b formed on the surface of the base material 245a. The pointer 110 is rotatably inserted into the central through hole 245c. The light guide member 245 may have other shapes. The light guide member 245 is made of a transparent synthetic resin. Small irregularities (not shown) are formed on the back surface of the light guide member 245, and the light guide member 245 has a structure that easily guides light incident from the outside. Further, a notch (not shown) is formed at an appropriate location on the outer peripheral portion of the base material 245a of the light guide member 245, and the light guide member 245 has a structure that easily guides light incident from the outside. The light guide member 245 mainly guides light emitted from the extraction region 243a which is a transmission part, and makes it easy for the user to visually recognize the display board.

  The convex portion 245b is formed at a position covering the scale (on the surface of the base material 245a) in the light guide member 245 and covers the scale. In the present embodiment, the scale portion 244 that is an instruction target of the pointer 110 includes a scale, a convex portion 245b, and a region corresponding to the convex portion 245b of the base material 245a. The light from the first light source 124a emitted from the scale is also guided by the convex portion 245b and the like. The convex portion 245b transmits and guides the light guided by the light guide member 245. Thereby, the scale part 244 looks three-dimensionally shining.

  As described above, the display unit 240 includes a display plate provided with a transmission unit (here, a scale) that transmits light from the first light source 124a, and a light guide member that covers the display plate from the front side of the display unit 240. 245. In addition, the light guide member 245 includes a convex portion 245b that transmits and emits light from the light source transmitted through the transmission portion, and the scale portion 244 includes the convex portion 245b.

  Moreover, the display part 240 is provided with the notch 240a in the part corresponding to the convex part 245b in the outer peripheral part of a display board. The light from the first light source 124a reflects the support member 130, passes through the space formed by the notch 240a, and enters the peripheral portion of the base material 245a of the light guide member 245 (dotted arrow in FIG. 9). reference). The light incident on the peripheral edge is also guided by the light guide member 245, and a predetermined portion of the light guide member 245 is illuminated.

  The facing member 250 is obtained by forming a notch 250a in the facing member 150 (cylindrical member 151) in the first embodiment, and has the same configuration as the facing member 150 except for the notch 250a. The inner wall 251a corresponds to the inner wall 151a, the strong reflection region 252 corresponds to the strong reflection region 152, and the adjacent region 253 corresponds to the adjacent region 153.

  Moreover, the scale part 244 is fitted in the notch 250a with which the turning member 250 is provided (see FIG. 10. In FIG. 10, the turning member 250 and the scale part 244 are seen from the center side of the display part 240). Further, the strong reflection region 252 is connected to the notch 250a, whereby the strong reflection region 252 and the scale portion 244 are continuous, and the strong reflection region 252 is illuminated when illuminated by the first light source 152a. The scale part 244 looks like a streak and looks three-dimensionally, as in the first embodiment. For this reason, by forming the strong reflection region 252 on the inner wall 251a of the cylindrical member 251 of the turning member 250 of the measuring device 2, the display on the outer side (that is, the inner wall 251a) of the scale portion 244 becomes three-dimensional. Moreover, since the scale part 244 also becomes three-dimensional, the whole display of the speedometer 200 of the instrument device 2 becomes three-dimensional.

  The strong reflection region 252 may not be continuous with the scale portion 244. In this case, the scale portion 244 and the strong reflection region 252 shine in a streak shape between the scale portion 244 and the strong reflection region 252 when illuminated, but even in this case, the outside of the scale portion 244 ( That is, the display may be three-dimensional about the inner wall 251a). However, it is desirable that the scale part 244 is continuous with the scale part 244 in the strong reflection region 252. As a result, the scale portion 244 and the strong reflection region 252 shine in a continuous streak shape when illuminated, so the impression to the user is improved. The case where the scale portion 244 and the strong reflection region 252 are not continuous is, for example, the case where the strong reflection region 252 does not reach the notch 250a.

  The other detailed description of the facing member 250 (particularly, the strong reflection region 252 and the like) conforms to the description of each component in the first embodiment. Further, the other detailed description in the present embodiment also conforms to the description of each component in the first embodiment.

  In the above description, the scale has translucency, but the scale may not have translucency, and the periphery of the scale may have translucency. In this case, light transmitted through the scale (transmission part) is guided by the light guide member 245, the convex part 245b transmits and emits light from the first light source 124a, and the scale part shines. In addition, the scale may not be formed on the display plate, and the display plate may have a light-transmitting portion (for example, a light transmission portion formed in a band shape along the circumferential direction of the display plate). Even in this case, the light guide member 245 guides the light emitted from the light-transmitting portion, the convex portion 245b transmits and emits the light from the first light source 124a, and the scale portion shines. As described above, the display unit 240 includes the display plate provided with the transmission unit that transmits the light from the first light source 124a, and the light guide member 245 that covers the display plate from the front side of the display unit 240. What is necessary is just to transmit the light from the light source which the permeation | transmission part permeate | transmitted and the convex part 245b should just radiate | emit. The scale portion may be a convex portion 245b.

(Modification)
In each of the above-described embodiments, an example in which an example of the characteristics of the present invention is applied to a speedometer has been described. However, the present invention can be appropriately applied to various meters having a turning member (particularly, an analog meter using a pointer and a scale).

DESCRIPTION OF SYMBOLS 1 Instrument apparatus 2 Instrument apparatus 1a Case 100 Speedometer 110 Pointer 120 Circuit board 121 Board body 121a Shaft hole 122 Pointer drive part 123 Rotating shaft 124a First light source 124b Second light source 130 Support member 140 Display part 140a Pointer insertion hole 141 Substrate 142 First layer 143 Second layer 143a Extraction region 144 Scale portion 150 Look-back member 151 Cylindrical member 151a Inner wall 152 Strong reflection region 152a Strong reflection region 152b Strong reflection region 152c Strong reflection region 153 Adjacent region 155 First region Opening 156 Second opening 160 Lid 191 First display device 192 Second display device 200 Speedometer 240 Display portion 240a Notch 244 Scale portion 245 Light guide member 245a Base material 245b Convex portion 245c Center through hole 250 Look-back member 250a Notch 251 Tubular member 2 1a inner wall 252 strong reflection region 253 adjacent region

Claims (4)

Guidelines,
A display unit provided with a scale unit to be indicated by the pointer;
A light source disposed behind the display unit and illuminating the display unit;
A turn-back member disposed in front of the display unit and having a cylindrical member surrounding the operating range of the pointer,
The scale portion transmits and emits light from the light source,
The inner wall of the tubular member of the facing member has a strong reflection region that reflects light from the light source emitted by the scale portion more strongly than other adjacent regions on the inner wall,
The strong reflection region is a linear region extending along a direction perpendicular to the circumferential direction of the inner wall, and one end extends toward the scale portion.
An instrument device characterized by that. The display unit includes a display plate provided with a transmission unit that transmits light from the light source, and a light guide member that covers the display plate from the front side of the display unit,
The light guide member includes a convex portion that transmits and emits light from the light source transmitted through the transmission portion,
The scale portion includes the convex portion,
The cylindrical member includes a notch into which the convex portion is fitted.
The instrument device according to claim 1.   The instrument device according to claim 1, wherein the strong reflection region is formed by a concave portion or a convex portion in the inner wall.   The instrument device according to claim 1, wherein the strong reflection region is a region that is more glossy than the other region.

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