JP2017223665A - Vehicle display device-purpose indicator and vehicle display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle display device-purpose indicator and vehicle display device that can properly broaden a light emission area.SOLUTION: A vehicle display device-purpose pointer 1 to be applied to a vehicle display device comprises: a first optical transmission body 31 that emits incident light from a first emission surface 31e; a second optical transmission body 32 that emits incident light emitted from the first emission surface 31e from a second emission surface 32c; a pointer light emitting body 3 that has a diffusion layer 33 diffusing light emitted from the first emission surface 31e and to be incident upon the second optical transmission body 32, or light emitted from the second emission surface 32c; and a pointer light shielding body 5 that covers the first optical transmission body 31 from either side in a pointer width direction Z1, and shields light leaking along the pointer width direction Z1 from the first optical transmission body 31. The optical transmission body 32 is configured to, with regard to at least the pointer width direction Z1, emit the light with a light emission area T12 due to the second emission surface 32c broader than a light emission area T11 due to the first emission 31e.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a pointer for a vehicle display device and a vehicle display device.

  As a conventional pointer for a vehicle display device applied to a vehicle display device, for example, in Patent Document 1, a base portion that receives light from a light source, a pointer portion that extends in one direction from the base portion, and a base portion are provided. And a reflecting member that reflects the received light toward the tip of the pointer part, a pointer member made of a light-transmitting material, and a material having both light transmission and diffusibility, at least the upper surface of the pointer part, In addition, there is disclosed a pointer unit that includes a diffusion cover that is formed so as to cover both side surfaces in the width direction that stand up to the back surface on the back side of the upper surface.

Japanese Patent No. 5815249

  Incidentally, the pointer unit described in Patent Document 1 described above has room for further improvement in terms of, for example, more appropriate expansion of the light emitting area.

  This invention is made | formed in view of said situation, Comprising: It aims at providing the indicator for vehicle display apparatuses which can expand a light emission area | region appropriately, and a vehicle display apparatus.

  In order to achieve the above object, a pointer for a vehicle display device according to the present invention is formed by extending a pointer extending direction with a light-transmitting material, and transmits incident light from a first emission surface to the pointer. A first light transmitting body that emits along the direction of the pointer optical axis that intersects the existing direction; the first light exit surface that extends along the direction of extension of the pointer by the light-transmitting material and that extends relative to the direction of the pointer optical axis And a second light transmitting body for emitting incident light emitted from the first emission surface along the pointer optical axis direction and emitted from the first emission surface. The pointer light emitter having a diffusion layer for diffusing the light incident on the second light transmitting body or the light emitted from the second light exit surface and the light shielding material extend along the pointer extending direction. The first light transmitting body is formed in the direction of the pointer optical axis and the pointer A pointer light-shielding body that covers from both sides of the pointer width direction intersecting the present direction and shields light leaking from the first light-transmitting body along the pointer width direction, and the second light-transmitting body includes at least the pointer width With respect to the direction, the light emission region by the second emission surface is expanded from the light emission region by the first emission surface, and the light is emitted from the second emission surface.

  In the above pointer for a vehicle display device, the pointer light shielding body includes a side wall portion that covers the first light transmission body from both sides in the pointer width direction and extends along the pointer optical axis direction. The two light transmitting body may cover an end surface on the light emission side by the first emission surface in the side wall portion.

  Further, in the vehicle display device pointer, the second light transmitting body may widen a light emission area by the second emission surface by a light refraction effect.

  Further, in the vehicle display device pointer, the second light transmission body may expand a light emission region by the second emission surface by a light diffusion effect.

  In the vehicle display device pointer, the diffusion layer is provided in close contact with the first emission surface, and the second light transmitting body is emitted from the first emission surface via the diffusion layer. The incident surface on which light is incident may be positioned with a gap between the diffusion layer and the second emitting surface may be curved or bent.

  In the vehicle display device pointer, the diffusion layer is provided in close contact with the second emission surface, and the first light transmission body and the second light transmission body have different refractive indexes. An incident surface of the second light transmitting body, which is made of a transmissive material and on which light emitted from the first emission surface is incident, is provided in close contact with the first emission surface, and the first emission surface and the incident The surface may be curved.

  In the vehicle display device pointer, the diffusion layer is provided in close contact with the first emission surface, and the second light transmitting body is emitted from the first emission surface via the diffusion layer. The incident surface on which light is incident is located with a gap between the diffusion layer, and the incident surface or the second emission surface has a plurality of fine uneven portions.

  In the vehicle display device pointer, the pointer light-blocking body covers the first light transmitting body from both sides in the pointer width direction and holds the first light transmitting body, and the rotation that can be rotationally driven. The rotating shaft connecting portion connected to the shaft may be provided, and the side wall portion and the rotating shaft connecting portion may be integrally formed.

  The pointer for a vehicle display device includes a connection base portion that supports the pointer light emitter so as to rotate integrally with a rotary shaft that can be driven to rotate, and the connection base portion includes a weight of the pointer light emitter in a direction in which the pointer extends. A balancer support portion for supporting a balancer for adjusting the balance, the balancer support portion extending along the pointer extending direction and formed in a plate shape; and a front surface in the pointer optical axis direction from the bottom portion A side wall portion that extends in the direction of the pointer and extends in the direction of extension of the pointer and is formed in a frame shape, and the pointer shading body is on the side of the connection base in the direction of the pointer optical axis The end portion of the balancer support portion may be in contact with the end portion of the side wall portion of the balancer support portion on the pointer light shielding body side in the pointer optical axis direction.

  In order to achieve the above object, a vehicle display device according to the present invention includes a light source for irradiating light, a drive unit having a rotation shaft that can be rotationally driven, the light source, and a housing that houses the drive unit. A pointer connected to the rotary shaft and driven to rotate, the pointer extending along the direction of extension of the pointer with a light-transmitting material, and transmitting the incident light from the first emission surface to the pointer A first light transmitting member that emits along the pointer optical axis direction intersecting the extending direction; the first light emitting member that extends along the pointer extending direction by the light transmissive material; A second light transmitting body that is formed opposite to the surface and emits incident light emitted from the first emission surface along the direction of the pointer optical axis from the second emission surface, and is emitted from the first emission surface Light incident on the second light transmitting body or exiting from the second exit surface. A pointer illuminator having a diffusion layer for diffusing the emitted light; and a light-shielding material that extends along the direction of extension of the pointer, and the first light transmissive body extends in the direction of the pointer optical axis and the extension of the pointer. A pointer light-shielding body that covers from both sides of the pointer width direction intersecting the present direction and shields light leaking from the first light-transmitting body along the pointer width direction, and the second light-transmitting body includes at least the pointer width With respect to the direction, the light emission region by the second emission surface is expanded from the light emission region by the first emission surface, and the light is emitted from the second emission surface.

  In the pointer for a vehicle display device and the vehicle display device according to the present invention, in the pointer light emitter, light incident on the first light transmission body is emitted from the first emission surface along the pointer optical axis direction, and the second light The entire pointer light emitter emits light by being incident on the transmissive body and being emitted from the second emission surface along the direction of the pointer optical axis. At this time, the pointer for the vehicle display device and the vehicle display device limit the light emission area other than the direction of the pointer optical axis by blocking the light leaking from the first light transmitting body along the pointer width direction by the pointer light shield. The outline of the pointer light emitter can be shown sharply. In addition, the pointer for the vehicle display device and the vehicle display device can widen the light emitting area in the pointer light emitter by diffusing light by the diffusion layer and expanding the emission area by the second emission surface of the second light transmitting body. it can. As a result, the vehicle display device pointer and the vehicle display device have an effect that the light emitting area can be appropriately expanded.

FIG. 1 is a perspective view illustrating a schematic configuration of the vehicle display device according to the first embodiment. FIG. 2 is a perspective view illustrating a schematic configuration of a pointer of the vehicle display device according to the first embodiment. FIG. 3 is an exploded perspective view illustrating a schematic configuration of the pointer of the vehicle display device according to the first embodiment. FIG. 4 is a plan view illustrating a schematic configuration of a pointer of the vehicle display device according to the first embodiment. 5 is a cross-sectional view taken along line S11-S11 shown in FIG. 6 is a cross-sectional view taken along the line S12-S12 shown in FIG. FIG. 7 is a partial cross-sectional view inside the encircling line S13 shown in FIG. FIG. 8 is a schematic partial cross-sectional view along the pointer optical axis direction and the pointer width direction of the pointer according to the modification. FIG. 9 is a schematic partial cross-sectional view along the pointer optical axis direction and the pointer width direction of the pointer according to the second embodiment. FIG. 10 is a schematic partial cross-sectional view along the pointer optical axis direction and the pointer width direction of the pointer according to the modification. FIG. 11 is a schematic partial cross-sectional view of the pointer according to the third embodiment along the pointer optical axis direction and the pointer width direction. FIG. 12 is a schematic partial cross-sectional view illustrating an example of the fine uneven portion of the pointer according to the third embodiment. FIG. 13 is a schematic partial cross-sectional view illustrating another example of the fine uneven portion of the pointer according to the third embodiment. FIG. 14 is a schematic partial cross-sectional view along the pointer optical axis direction and the pointer width direction of the pointer according to the modification. FIG. 15 is a perspective view illustrating a schematic configuration of a pointer of the vehicle display device according to the fourth embodiment. FIG. 16 is an exploded perspective view illustrating a schematic configuration of a pointer of the vehicle display device according to the fourth embodiment. FIG. 17 is a cross-sectional view of the pointer according to the fourth embodiment along the pointer extending direction and the pointer optical axis direction. FIG. 18 is a cross-sectional view of the pointer according to the fourth embodiment along the pointer optical axis direction and the pointer width direction. FIG. 19 is a perspective view illustrating a schematic configuration of a pointer of the vehicle display device according to the fifth embodiment. FIG. 20 is an exploded perspective view illustrating a schematic configuration of a pointer of the vehicle display device according to the fifth embodiment. FIG. 21 is a plan view illustrating a schematic configuration of a pointer of the vehicle display device according to the fifth embodiment. 22 is a cross-sectional view taken along line S14-S14 shown in FIG. 23 is a cross-sectional view taken along line S15-S15 shown in FIG. FIG. 24 is a plan view showing a light emission example of the pointer light emitter. 25 is a cross-sectional view taken along line S16-S16 shown in FIG. FIG. 26 is a plan view showing a light emission example of the pointer light emitter according to the modification. 27 is a cross-sectional view taken along line S17-S17 shown in FIG. FIG. 28 is a plan view showing a light emission example of the pointer light emitter according to the modification. 29 is a cross-sectional view taken along line S18-S18 shown in FIG. FIG. 30 is a cross-sectional view of the pointer according to the reference example along the pointer extending direction and the pointer optical axis direction. FIG. 31 is a cross-sectional view of the pointer according to the reference example along the pointer optical axis direction and the pointer width direction. FIG. 32 is a schematic partial front view for explaining the action of the pointer according to the reference example. FIG. 33 is a cross-sectional view of the pointer according to the reference example along the pointer extending direction and the pointer optical axis direction. FIG. 34 is a cross-sectional view of the pointer according to the reference example along the pointer optical axis direction and the pointer width direction.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same.

  FIG. 5 described below is a cross-sectional view along the pointer extending direction of the pointer and the pointer optical axis direction, and FIGS. 6 and 7 are the pointer optical axis direction of the pointer and the pointer width direction. FIG. 5, FIG. 6, and FIG. 7 are partially simplified and illustrated as schematic sectional views.

[Embodiment 1]
As shown in FIG. 1, a pointer 1 as a vehicle display device pointer according to the present embodiment is applied to a vehicle display device 100 mounted on a vehicle. The vehicle display device 100 constitutes a so-called on-vehicle meter, and is mounted on an instrument panel provided on a dashboard of the vehicle, for example, and displays various information related to the vehicle as information used for driving the vehicle. To do.

  Note that the width direction X of the vehicle display device 100 shown in FIG. 1 and the like typically corresponds to the vehicle width direction of a vehicle to which the vehicle display device 100 is applied. In the following description, in the width direction X of the vehicle display device 100, the left side (left side in FIG. 1) toward the front of the vehicle display device 100 is the left side in the width direction X, and the right side (right side in FIG. 1) is the width direction. X may be called the right side. The depth direction Y of the vehicle display device 100 typically corresponds to the front-rear direction of the vehicle to which the vehicle display device 100 is applied. Further, the front side of the vehicle display device 100 is a side facing the driver's seat of the vehicle in the depth direction Y, and is typically a side visually recognized by a driver sitting in the driver's seat. On the other hand, the back side of the vehicle display device 100 is the side opposite to the front side in the depth direction Y, and is typically the side accommodated inside the instrument panel. The height direction Z of the vehicle display device 100 typically corresponds to the height direction of the vehicle to which the vehicle display device 100 is applied, for example, a direction along the vertical direction. In addition, each direction used in the following description represents a direction in a state where the vehicle display device 100 is assembled to the instrument panel unless otherwise specified.

  Specifically, the vehicle display device 100 includes a display unit 101 that displays various information related to the vehicle, and a housing 102 that is made of a resin material or the like and houses the display unit 101 or the like. The display unit 101 is disposed in a housing 102 that accommodates each unit of the vehicle display device 100, and a display surface for various information is exposed on the front side in the depth direction Y. The housing 102 includes, for example, a back cover disposed on the back side in the depth direction Y, a case body disposed on the front side in the depth direction Y of the back cover, a turning member disposed on the front side in the depth direction Y of the case body, and the like. The display part 101 is arrange | positioned in the space part comprised including and divided by these. And the display surface of each display part 101 is exposed to the depth direction Y front side through the opening formed in the turning member. Here, as an example, the display unit 101 includes a speedometer 101A that displays the vehicle speed, a tachometer 101B that displays the output rotational speed of the driving power source, and the like as information about the vehicle. The speedometer 101 </ b> A and the tachometer 101 </ b> B are configured to include a dial plate 103, a pointer 1, and the like, and are various analog instruments that display various measurement values related to the vehicle in an analog manner using the pointer 1. On the dial 103, as information about the vehicle, for example, an indicator part indicating a measured value such as a speed and an output rotation number, and a design for a warning display indicated by the pointer 1 are drawn. The dial plate 103 is, for example, a polycarbonate sheet made of a transparent fabric, and is printed with a shape corresponding to the indicator portion, the warning display pattern, or the like with dark ink. In the display unit 101, the light emitted from the light source unit is transmitted through a portion of the dial plate 103 where the indicator unit and the warning display symbol are cut out, so that the indicator unit and the warning display symbol are displayed. It becomes. The indicator portion pointed to by the pointer 1 includes an arc along the turning trajectory of the tip of the pointer 1, and a plurality of scales, numbers, and the like attached at equal intervals along the arc. The pointer 1 constitutes a part of the display unit 101 and indicates information related to the vehicle. The pointer 1 is located on the front side of the dial 103 in the depth direction Y, and points to a predetermined position of the indicator portion according to various measurement values (speed, output rotation speed, etc.) relating to the vehicle. Each display unit 101 is indicated by the pointer 1 with the current speed and the output rotation speed.

  Hereinafter, each configuration of the pointer 1 applied to the vehicle display device 100 as described above will be described in detail with reference to FIGS. 2, 3, 4, 5, 6, and 7. In the pointer 1 described below, of the first direction, the second direction, and the third direction intersecting with each other, the first direction is the “pointer extending direction X1” and the second direction is the “pointer optical axis”. The direction is Y1 ”, and the third direction is“ pointer width direction Z1 ”. Here, the pointer extending direction X1, the pointer optical axis direction Y1, and the pointer width direction Z1 are substantially orthogonal to each other. Typically, the pointer optical axis direction Y1 is a direction along the depth direction Y. Each direction used in the following description represents a direction in a state where the parts of the pointer 1 are assembled to each other unless otherwise specified. Further, since the pointer 1 of the speedometer 101A and the pointer 1 of the tachometer 101B have substantially the same configuration, a common description is given here.

  First, a configuration for rotating the pointer 1 will be described. As shown in FIG. 5, the pointer 1 is rotationally driven by a motor 104 serving as a drive unit disposed in a housing 102 (see FIG. 1). The motor 104 is mounted on the mounting surface on the front side in the depth direction Y of the wiring board 105 disposed in the housing 102. The motor 104 is a driving source of the pointer 1 and has a rotating shaft 106 that can be driven to rotate. The rotating shaft 106 constitutes the rotor shaft of the motor 104. Further, the vehicle display device 100 includes a light source 107 mounted on a mounting surface between the motor 104 and the wiring board 105, and the rotation shaft 106 has the light source with respect to the pointer optical axis direction Y1 (depth direction Y). 107 is provided at a position opposed to 107, and extends along the pointer optical axis direction Y1. The motor 104 and the light source 107 are mounted on the mounting surface of the wiring board 105 and accommodated in the housing 102 (see FIG. 1). The light source 107 irradiates light toward the front side in the depth direction Y (pointer optical axis direction Y1). That is, here, the light irradiation direction of the light source 107, in other words, the optical axis direction of the light source 107 is a direction along the pointer optical axis direction Y1. The light source 107 includes, for example, an LED (Light Emitting Diode) element, but is not limited thereto. The rotating shaft 106 of the present embodiment is formed of a light-transmitting resin material that transmits light. The rotating shaft 106 is opposed to the light source 107 in the depth direction Y (pointer optical axis direction Y1) and from the motor 104 to the depth direction Y. And projecting on the front side in the depth direction Y so as to extend in a columnar shape. The rotating shaft 106 is connected to the pointer 1 at the end opposite to the light source 107 side, that is, the end on the front side in the depth direction Y, through an opening 103 a formed in the dial 103. The rotation shaft 106 functions as a light guide shaft that guides light emitted from the light source 107 to the pointer 1 side. That is, the rotating shaft 106 enters the light emitted from the light source 107 into the end on the light source 107 side, guides the incident light to the pointer 1 side on the front side in the depth direction Y, and emits it. The pointer 1 is located on the front side of the dial 103 in the depth direction Y, is connected to the rotating shaft 106 and is driven to rotate when driven by the motor 104 and emits light by light from the light source 107.

  More specifically, the pointer 1 of this embodiment includes a pointer stem 2 as a connection base, a pointer light emitter 3, and a pointer illuminator 3 as shown in FIGS. 2, 3, 4, 5, 6, and 7. The balancer 4 and the pointer cap 5 as a pointer light-shielding body are provided, and the entire pointer light-emitting body 3 emits light by the light guided through the rotating shaft 106 as described above.

  Specifically, the pointer stem 2 is a connection support member that connects the rotary shaft 106 and the pointer light emitter 3 and supports the pointer light emitter 3 so as to be integrally rotatable with the rotary shaft 106. The pointer stem 2 includes a base portion 21 and a cylindrical shaft portion 22, and these are integrally formed of a light-blocking resin material that blocks light.

  The base portion 21 is a portion that is formed in a plate shape extending along the pointer extending direction X1 and that supports the pointer light emitter 3 on one surface in the pointer optical axis direction Y1. The base 21 is formed in a substantially circular plate-like portion to which the cylindrical shaft portion 22 is connected, and an assembly hole portion 21a is formed in the substantially circular plate-like portion (see FIG. 6 and the like). The assembly hole 21a is a part to which the pointer cap 5 is assembled, and here, two are provided.

  The cylindrical shaft portion 22 is a portion called a soot that connects the rotary shaft 106 and the pointer light emitter 3. The cylindrical shaft portion 22 is formed in a hollow cylindrical shape, and is formed so as to protrude from the substantially circular plate-shaped portion of the base portion 21 along the pointer optical axis direction Y1. The cylindrical shaft portion 22 is formed so as to protrude on the side opposite to the surface that supports the pointer light emitter 3 in the base portion 21, and an internal hollow portion penetrates the base portion 21 and opens on both sides in the pointer optical axis direction Y1. (See FIG. 5, FIG. 6, etc.). The cylindrical shaft portion 22 has a rotary shaft 106 fitted into one end opening in the pointer optical axis direction Y1, and a shaft portion 31a of a pointer light emitter 3 to be described later fitted into the other end opening in the pointer optical axis direction Y1. As a result, the rotary shaft 106 and the shaft portion 31a are connected so as to be integrally rotatable.

  The pointer light emitter 3 is a light emitting member that emits light by light guided through the rotation shaft 106, and constitutes a pointer main body. The pointer light emitter 3 of the present embodiment includes a pointer prism member 31 as a first light transmitter, a light transmissive cap 32 as a second light transmitter, and a diffusion layer 33, and these are combined. Composed.

  The pointer prism member 31 is formed of a light transmissive material so as to extend along the pointer extending direction X1, and the light incident on the shaft portion 31a is front-side along the pointer optical axis direction Y1 from the first emission surface 31e. Is emitted. The pointer prism member 31 includes a shaft portion 31a, a main body portion 31b, a supported portion 31c, a light guide hollow portion 31d, and a first emission surface 31e, and these are light transmissive resin materials that transmit light. Are integrally formed.

  The shaft portion 31a is a portion formed in a columnar shape along the pointer optical axis direction Y1, and as described above, is connected to the rotary shaft 106 so as to be integrally rotatable via the cylindrical shaft portion 22 of the pointer stem 2 ( (See FIGS. 5 and 6). The shaft portion 31a functions as an incident portion on which light guided through the rotation shaft 106 enters along the pointer optical axis direction Y1.

  The main body portion 31b is a portion formed extending from the end portion of the shaft portion 31a along the pointer extending direction X1. The main body 31b is provided at the end of the shaft 31a opposite to the end connected to the rotating shaft 106. The main body portion 31b is formed so as to protrude from the end portion of the shaft portion 31a to both sides in the pointer extending direction X1. The main body 31b has a protrusion amount on one side (the side opposite to a side where a later-described balancer 4 is disposed) in the state where the pointer prism member 31 is assembled and supported on the pointer stem 2, and the other side (the later-described balancer 4 described later). The amount of protrusion from the end of the shaft portion 31a is set so as to be larger than the amount of protrusion on the side where the is disposed) (see FIGS. 3 and 5). In the main body 31b, a surface opposite to the shaft 31a side with respect to the pointer optical axis direction Y1, that is, a surface on the front side in the depth direction Y forms a first emission surface 31e.

  The supported portion 31c is a portion that is supported on the base portion 21 of the pointer stem 2, and is formed to project from the main body portion 31b on both sides in the pointer width direction Z1 (see FIGS. 3 and 6). Each supported portion 31c is provided at a connection portion between the shaft portion 31a and the main body portion 31b. Each supported portion 31c has an assembly hole portion 31f (see FIG. 6 and the like). The assembly hole portion 31f is a portion to which the pointer cap 5 is assembled, and here, a total of two are provided, one for each supported portion 31c.

  The light guide hollow portion 31d is a connection portion between the shaft portion 31a and the main body portion 31b, here, a portion formed in a hollow shape on the main body portion 31b side of the connection portion (FIGS. 3, 5, 6, etc.) reference). The light guide hollow portion 31d is formed in a hollow shape having openings on both sides in the pointer width direction Z1. The light guide hollow portion 31d has a substantially quadrant shape in a cross-sectional view (see FIG. 5) along the pointer extending direction X1 and the pointer optical axis direction Y1 (in other words, as viewed in the pointer width direction Z1). Alternatively, it is formed in a substantially fan shape. More specifically, the light guide hollow portion 31d has a tapered shape on the side of the shaft portion 31a in the pointer optical axis direction Y1 in the cross-sectional view, and the pointer becomes closer to the shaft portion 31a along the pointer optical axis direction Y1. It is formed in a shape such that the width along the extending direction X1 gradually increases. The light guide hollow portion 31d is a reflective light guide surface in which the surface forming the light guide hollow portion 31d reflects and diffuses the light incident on the shaft portion 31a in the pointer extending direction X1 and guides it to the entire body portion 31b. Function as.

  The first light exit surface 31e receives light that is incident on the shaft portion 31a from the rotating shaft 106 and reflected and diffused in the pointer extending direction X1 by the light guide hollow portion 31d and guided to the main body portion 31b in the pointer prism member 31. This is a surface that exits in the depth direction Y front side along the pointer optical axis direction Y1. As described above, the first emission surface 31e is constituted by a surface of the main body 31b opposite to the shaft 31a side with respect to the pointer optical axis direction Y1, here, a surface on the front side in the depth direction Y. . The first emission surface 31e extends along the pointer extending direction X1 in accordance with the shape of the main body 31b. The first emission surface 31e of the present embodiment is formed as a flat surface.

  The light transmissive cap 32 is formed of a light transmissive material so as to extend along the pointer extending direction X1 and to face the first emission surface 31e with respect to the pointer optical axis direction Y1, and from the first emission surface 31e. Light emitted and incident on the incident surface 32b is emitted from the second emission surface 32c to the front side along the pointer optical axis direction Y1. The light transmissive cap 32 includes a main body portion 32a, an incident surface 32b, and a second emission surface 32c, and these are integrally formed of a light transmissive resin material that transmits light.

  The main body portion 32a is formed to extend in a straight bar shape along the pointer extending direction X1 in accordance with the shape of the main body portion 31b of the pointer prism member 31. In the main body 32a, a surface facing the first exit surface 31e of the pointer prism member 31 with respect to the pointer optical axis direction Y1, that is, a surface on the back side in the depth direction Y forms an incident surface 32b. On the other hand, in the main body 32a, the surface opposite to the surface facing the first emission surface 31e of the pointer prism member 31 with respect to the pointer optical axis direction Y1, that is, the surface on the front side in the depth direction Y is the second emission surface. 32c, and the second emission surface 32c functions as a design surface on the front side in the depth direction Y.

  The incident surface 32 b is a surface on the light transmissive cap 32 on which light emitted from the first emission surface 31 e of the pointer prism member 31 is incident. Here, the light incident from the first exit surface 31e of the pointer prism member 31 and diffused by the later-described diffusion layer 33 enters the entrance surface 32b. As described above, the incident surface 32b is configured by a surface facing the first emission surface 31e with respect to the pointer optical axis direction Y1 in the main body portion 32a, here, a surface on the back side in the depth direction Y. The incident surface 32b extends along the pointer extending direction X1 in accordance with the shape of the main body portion 32a. In this embodiment, the incident surface 32b is formed as a flat surface.

  The second emission surface 32c is a surface that emits light incident on the incident surface 32b to the front side in the depth direction Y along the pointer optical axis direction Y1 in the light-transmitting cap 32. As described above, the second emission surface 32c is a surface of the main body 32a opposite to the surface facing the first emission surface 31e of the pointer prism member 31 with respect to the pointer optical axis direction Y1, in this case, the depth. It is comprised by the surface of the direction Y front side. The second emission surface 32c extends along the pointer extending direction X1 in accordance with the shape of the main body portion 32a.

  In addition, the light transmissive cap 32 of the present embodiment has a protruding edge 32d at the edge on the incident surface 32b side of the main body 32a (see FIG. 7). The protruding edge portion 32d is formed to protrude from the respective edge portions on the incident surface 32b side of the main body portion 32a toward the pointer prism member 31 side along the pointer optical axis direction Y1. The light transmitting cap 32 of the present embodiment is provided such that the protruding edge portion 32d is mounted in close contact with the end surface of the side wall portion 5d of the pointer cap 5 described later. The light transmissive cap 32 is formed integrally with a pointer cap 5 described later by, for example, two-color molding. Here, the light-transmitting cap 32 has a protrusion edge 32d, which will be described later, such that the incident surface 32b is positioned with a gap 32e between the first light exit surface 31e and the pointer optical axis direction Y1. It is provided in close contact with the end surface of the side wall 5d of the cap 5 (see FIG. 7).

  The light transmissive cap 32 is curved and formed in a curved surface so that the second emission surface 32c forms a lens that refracts and diverges light (see FIG. 7). Here, the second emission surface 32c is shown in cross-sectional view (see FIG. 7) along the pointer optical axis direction Y1 and the pointer width direction Z1 (in other words, as viewed in the pointer extending direction X1). It is formed in a substantially semicircular arc shape of a convex portion protruding to the opposite side to the incident surface 32b with respect to the axial direction Y1, that is, the emission side.

  The diffusion layer 33 is a layer that diffuses light. The diffusion layer 33 of the present embodiment is provided in close contact with the first emission surface 31 e of the pointer prism member 31, is emitted from the first emission surface 31 e of the pointer prism member 31, and is incident on the incident surface 32 b of the light transmissive cap 32. Diffuse light. More specifically, the diffusion layer 33 is provided in close contact with the surface on the incident surface 32b side of the first emission surface 31e, more specifically, the surface on the gap 32e side. The diffusing layer 33 is configured as a light-transmitting colored layer by, for example, hot stamp printing, coating a plurality of times, a film transfer method, or the like, and the light emission color of the pointer light emitter 3 by the color colored in the light-transmitting colored layer. (Display color) can be set freely. Here, the diffusion layer 33 is configured as a white translucent colored layer.

  The balancer 4 is a part that adjusts the weight balance with the pointer light emitter 3 supported by the pointer stem 2. The balancer 4 is provided at one end portion in the pointer extending direction X1 of the surface that supports the pointer light emitter 3 in the base portion 21 of the pointer stem 2 (see FIGS. 3 and 5). The balancer 4 is interposed between the pointer prism member 31 constituting the pointer light emitter 3 and the pointer stem 2. More specifically, the pointer prism member 31 is interposed between the end portion of the main body portion 31b on the side where the protruding amount is small and the base portion 21 of the pointer stem 2.

  The pointer cap 5 is a light blocking member that is attached to the pointer light emitter 3 and blocks a part of light. The pointer cap 5 is formed to extend along the pointer extending direction X1 with a light shielding material, covers the pointer prism member 31 from both sides of the pointer width direction Z1, and leaks from the pointer prism member 31 along the pointer width direction Z1. Block out light. The pointer cap 5 includes a shaft portion cover portion 5a and a slit portion 5b, and these are integrally formed of a light-blocking resin material that blocks light.

  The shaft portion cover portion 5a is formed in a dome shape and is mounted from the first emission surface 31e side of the pointer prism member 31, and here covers a portion including the shaft portion 31a, the supported portion 31c, etc. of the pointer prism member 31. . Further, the shaft cover portion 5a has a columnar mounting shaft portion 5c formed inside a dome (see FIG. 6). Here, two mounting shaft portions 5c are provided.

  The slit part 5b has a side wall part 5d, and is a part in which a hollow part 5e for accommodating the main body part 31b of the pointer prism member 31 is formed by the side wall part 5d. The side wall portion 5d extends from the shaft portion cover portion 5a to the front side in the pointer optical axis direction Y1 and extends along the pointer extending direction X1, and is formed in a frame shape. Partition. In other words, the side wall portion 5d is a wall body that is erected along the pointer optical axis direction Y1 so as to surround the hollow portion 5e. The hollow portion 5e is formed so as to communicate with the inside of the shaft portion cover portion 5a and opens to the front side in the pointer optical axis direction Y1. The slit portion 5b is configured such that the main body portion 31b of the pointer prism member 31 is accommodated in the hollow portion 5e in a state in which the shaft portion cover portion 5a is attached to the pointer prism member 31, and the main body portion 31b is disposed through the opening. The one exit surface 31e and the diffusion layer 33 are exposed to the front side of the pointer optical axis direction Y1. In the state where the main body portion 31b is accommodated in the hollow portion 5e, the slit portion 5b covers at least the main body portion 31b of the pointer prism member 31 from both sides in the pointer width direction Z1. The light leaking from the main body portion 31b along the pointer width direction Z1, in other words, the light emitted from other than the first emission surface 31e is shielded.

  Here, the pointer cap 5 and the light transmissive cap 32 are integrally formed by two-color molding or the like as described above, and the end surface on the light emission side by the first emission surface 31e in the side wall portion 5d, that is, the side wall portion. The protruding edge portion 32d of the light-transmitting cap 32 is provided in close contact with and mounted on the end surface on the front surface side in the pointer optical axis direction Y1 at 5d. Thus, the light transmissive cap 32 is provided in a positional relationship so as to cover the end surface on the light emission side by the first emission surface 31e in the side wall portion 5d, that is, the end surface on the front surface side in the pointer optical axis direction Y1 in the side wall portion 5d. .

  In the pointer 1 configured as described above, the mounting shaft portion 5c of the pointer cap 5 integrally formed with the light transmitting cap 32 penetrates the assembly hole portion 31f of the supported portion 31c from the main body portion 31b side, and the main body. The pointer cap 5 is attached to the pointer prism member 31 in such a positional relationship that the portion 31b fits between the side walls 5d and the first emission surface 31e and the diffusion layer 33 are exposed from the opening of the hollow portion 5e of the slit portion 5b. The In the state in which the pointer cap 5 is mounted on the pointer prism member 31, the pointer 1 has the balancer 4 interposed between the pointer prism member 31 and the base portion 21 of the pointer stem 2 and the mounting shaft portion 5c of the shaft portion cover portion 5a. Is assembled into the assembly hole 21a of the base 21 of the pointer stem 2, so that the pointer stem 2, the pointer prism member 31, the balancer 4, and the pointer cap 5 are integrated. In the state in which the pointer stem 2, the pointer prism member 31, the balancer 4, and the pointer cap 5 are integrated, the pointer 1 is supported on the base 21 of the pointer stem 2 and the shaft of the pointer prism member 31 is The portion 31a is fitted to the cylindrical shaft portion 22 of the pointer stem 2 and is connected to the rotary shaft 106 so as to be integrally rotatable.

  In the pointer 1, the light incident on the shaft portion 31 a of the pointer prism member 31 from the light source 107 via the rotation shaft 106 is reflected and diffused in the pointer extending direction X 1 by the light guide hollow portion 31 d and is diffused in the pointer extending direction X 1. Then, the light is guided to the whole main body 31b and emitted from the first emission surface 31e to the front side in the depth direction Y along the pointer optical axis direction Y1. In the pointer 1, the light emitted from the first emission surface 31e is diffused by the diffusion layer 33, and the light diffused by the diffusion layer 33 passes through the gap 32e and enters the incident surface 32b of the light transmissive cap 32. . In the pointer 1, light incident on the incident surface 32b of the light-transmitting cap 32 is emitted from the second emission surface 32c to the front side in the depth direction Y along the pointer optical axis direction Y1, and as a result, the pointer light emitter 3 The whole of emits light.

  At this time, as shown in FIG. 7, the light-transmitting cap 32 makes the light emission region T12 by the second emission surface 32c more than the light emission region T11 by the first emission surface 31e in at least the pointer width direction Z1. The light is spread and emitted from the second emission surface 32c (see FIG. 7). The light transmissive cap 32 of the present embodiment widens the light emission region by the second emission surface 32c by the light refraction effect. Here, as described above, the light-transmitting cap 32 is formed such that the incident surface 32b has a gap 32e forming an air layer between the diffusion layer 33 and the second emission surface 32c is curved. As a result, the entrance surface 32b and the second exit surface 32c constitute a refracting surface. As a result, the light transmissive cap 32 constitutes a lens that refracts and diverges light, and the light exit region T12 by the second exit surface 32c is changed to the light exit by the first exit surface 31e due to the light refraction effect of the lens. It is wider than the emission region T11.

  On the other hand, the pointer 1 is guided through the rotating shaft 106 by covering the shaft cover portion 5a of the pointer cap 5 with the supported portion 31c of the pointer prism member 31 sandwiched between the shaft cover portion 5a and the base portion 21 of the pointer stem 2. Leaked light of the emitted light is blocked. In addition, the pointer 1 covers the main body 31b of the pointer prism member 31 from both sides of the pointer width direction Z1 by the side wall portion 5d of the pointer cap 5 so as to block light leaking from the main body 31b along the pointer width direction Z1. Is done.

  According to the pointer 1 described above, the pointer light is formed of the light transmitting material so as to extend along the pointer extending direction X1, and the incident light crosses the pointer extending direction X1 from the first emission surface 31e. A pointer prism member 31 that emits along the axial direction Y1, and is formed by the light transmissive material so as to extend along the pointer extending direction X1 and to face the first emitting surface 31e with respect to the pointer optical axis direction Y1, A light transmitting cap 32 that emits incident light emitted from the first emitting surface 31e along the pointer optical axis direction Y1 from the second emitting surface 32c, and a light transmitting cap 32 that is emitted from the first emitting surface 31e. The pointer luminous body 3 having the diffusion layer 33 for diffusing the incident light and the light-shielding material are formed to extend along the pointer extending direction X1, and the pointer prism member 31 is extended in the pointer optical axis direction Y1 and the pointer extending. Cross with direction X1 And a pointer cap 5 that covers light from both sides of the pointer width direction Z1 and shields light leaking from the pointer prism member 31 along the pointer width direction Z1. The light emission region T12 by the second emission surface 32c is expanded from the light emission region T11 by the first emission surface 31e, and light is emitted from the second emission surface 32c. According to the vehicle display device 100 described above, the light source 107 for irradiating light, the motor 104 having the rotational shaft 106 that can be driven to rotate, the light source 107, the housing 102 that houses the motor 104, and the rotational shaft. The pointer 1 is connected to 106 and driven to rotate.

  Therefore, in the pointer 1 and the vehicle display device 100, in the pointer light emitter 3, the light incident on the pointer prism member 31 is emitted from the first emission surface 31 e along the pointer optical axis direction Y1 and is incident on the light transmitting cap 32. The entire pointer light emitter 3 emits light by being emitted from the second emission surface 32c along the pointer optical axis direction Y1. At this time, in the pointer 1 and the vehicle display device 100, the light leaking from the pointer prism member 31 along the pointer width direction Z1 is blocked by the side wall portion 5d of the pointer cap 5, etc. By limiting the light emitting area other than the light emitting area to the side visually recognized by the driver or the like, the outline of the pointer light emitter 3 can be shown sharply. In addition, the pointer 1 and the vehicle display device 100 can efficiently emit light from the light source 107 to a side visually recognized by a driver or the like, can suppress loss, and suppress a decrease in luminance. Can do. In addition, the pointer 1 and the vehicle display device 100 widen the light emitting region in the pointer light emitter 3 by diffusing light by the diffusion layer 33 and expanding the emission region T12 by the second emission surface 32c of the light transmissive cap 32. be able to. As a result, the pointer 1 and the vehicle display device 100 can appropriately widen the light emission area of the pointer 1 while suppressing, for example, reflection of leaked light from the pointer 1 onto the dial plate 103 and the like. Can be improved.

  Furthermore, according to the pointer 1 and the vehicle display device 100 described above, the pointer cap 5 covers the pointer prism member 31 from both sides of the pointer width direction Z1, and includes the side wall portion 5d extending along the pointer optical axis direction Y1. The light-transmitting cap 32 covers the end surface on the light emission side by the first emission surface 31e in the side wall portion 5d. Therefore, the pointer 1 and the vehicle display device 100 are provided with the light transmissive cap 32 so as to cover the side wall portion 5d of the pointer cap 5, and the light emission region T12 by the second emission surface 32c exceeds the side wall portion 5d. Therefore, the entire pointer light emitter 3 can emit light more appropriately. For example, the curvature of the optical system (lens inclined surface angle) formed by the second emission surface 32c of the light transmitting cap 32, etc. Depending on the adjustment, the end face of the side wall 5d of the pointer cap 5 can be made inconspicuous and difficult to see.

  Furthermore, according to the pointer 1 and the vehicle display device 100 described above, the light transmissive cap 32 widens the light emission region T12 by the second light emission surface 32c by the light refraction effect. Therefore, the pointer 1 and the vehicle display device 100 are configured to refract and diverge the light incident on the light transmissive cap 32 and emitted from the second light exit surface 32c by the optical system formed by the light transmissive cap 32. The light emission region T12 by the two emission surfaces 32c can be wider than the light emission region T11 by the first emission surface 31e.

  Furthermore, according to the pointer 1 and the vehicle display device 100 described above, the diffusion layer 33 is provided in close contact with the first emission surface 31e, and the light-transmitting cap 32 extends from the first emission surface 31e to the diffusion layer 33. The incident surface 32b on which the light emitted via the light enters is positioned with a gap 32e between the diffusion layer 33 and the second emission surface 32c is curved. Therefore, the pointer 1 and the vehicle display device 100 are configured as lenses that allow the incident surface 32b and the second emission surface 32c of the light transmissive cap 32 to form a refractive surface, and the light transmissive cap 32 refracts and diverges light. Therefore, the light emission region T12 by the second emission surface 32c can be made wider than the light emission region T11 by the first emission surface 31e by the light refraction effect of the lens.

  In the above description, the pointer cap 5 and the light transmissive cap 32 have been described as being integrally formed by two-color molding or the like. However, the present invention is not limited to this. Etc. may be integrated. In addition, the pointer 1 is made of a light-transmitting material in which the light-transmitting cap 32 is colored, so that the light emission color (display color) of the pointer light-emitting body 3 can be freely set according to the color of the light-transmitting material. It can also be set. In addition, the pointer 1 is made of a light-transmitting cap 32 made of a dark-colored light-transmitting material, for example, a so-called smoke material, so that the pointer 1 can be assimilated with the dial plate 103 and the like when it is not turned on and can hardly be visually recognized. Thus, for example, when the pointer 1 is turned on, a novel effect such that the pointer 1 suddenly appears can be provided.

  In addition, the light-transmitting cap 32 described above has been described as a curved surface formed so that the second emission surface 32c forms a lens that refracts and diverges light, but is not limited thereto. . Like the pointer 1A for the vehicle display device according to the modification shown in FIG. 8, the second emission surface 32cA is bent and formed in a polygonal shape so as to constitute a lens that refracts and diverges light. Also good. Here, the second emission surface 32cA is a guide light in a cross-sectional view (see FIG. 8) along the pointer optical axis direction Y1 and the pointer width direction Z1 (in other words, as viewed in the pointer extending direction X1). It is formed in a substantially trapezoidal shape by a plurality of inclined surfaces or the like that protrude to the opposite side of the incident surface 32b with respect to the axial direction Y1, that is, the outgoing side, and are inclined with respect to the pointer optical axis direction Y1. Even in this case, in the pointer 1A and the vehicle display device 100, the incident surface 32b and the second emission surface 32cA of the light transmissive cap 32 constitute a refracting surface, and the light transmissive cap 32 refracts light to diverge light. Therefore, the light emission region T12 by the second emission surface 32cA can be made wider than the light emission region T11 by the first emission surface 31e due to the light refraction effect of the lens. Further, the light transmitting cap 32 has each protruding edge portion 32d wider than each side wall portion 5d with respect to the pointer width direction Z1, and each protruding edge portion 32d is an outer end surface of each side wall portion 5d in the pointer width direction Z1. Further, it may be formed so as to protrude further outward, whereby the end face of the side wall portion 5d of the pointer cap 5 can be made inconspicuous and difficult to see.

[Embodiment 2]
The pointer for the vehicle display device and the vehicle display device according to the second embodiment are different from the first embodiment in the configuration of the pointer light emitter. In the following, the same reference numerals are given to the same components as those in the above-described embodiment, and the overlapping description of the common configurations, operations, and effects is omitted as much as possible (the same applies hereinafter).

  9 differs from the above-described pointer 1 in that it includes a pointer light emitter 203 in place of the pointer light emitter 3, and other configurations are the same. The configuration is almost the same.

  The pointer light emitter 203 includes a pointer prism member 231 as a first light transmissive body, a light transmissive cap 232 as a second light transmissive body, and a diffusion layer 233, and these are combined.

  The pointer prism member 231 is different from the above-described pointer prism member 31 in that the pointer prism member 231 includes the first emission surface 231e instead of the first emission surface 31e, and other configurations are substantially the same as those of the pointer prism member 31. It is a configuration. The first emission surface 231e is configured by a surface of the main body portion 31b opposite to the shaft portion 31a (see FIG. 5 and the like) side with respect to the pointer optical axis direction Y1, in this case, the surface on the front side in the depth direction Y. The The first exit surface 231e of the present embodiment is curved and formed in a curved surface so as to constitute a lens that refracts and diverges light together with an entrance surface 232b described later. Here, the first exit surface 231e is shown in cross-sectional view (see FIG. 9) along the pointer optical axis direction Y1 and the pointer width direction Z1 (in other words, as viewed in the pointer extending direction X1). It is formed in a substantially semicircular shape in a concave shape that is depressed on the side opposite to the incident surface 232b described later with respect to the axial direction Y1, that is, on the side of the shaft portion 31a.

  The light transmissive cap 232 is different from the above-described light transmissive cap 32 in that the light transmissive cap 232 includes the light incident surface 232b instead of the light incident surface 32b, and includes the second light output surface 232c instead of the second light output surface 32c. The configuration is substantially the same as that of the light transmissive cap 32. The entrance surface 232b is configured by a surface facing the first exit surface 231e with respect to the pointer optical axis direction Y1 in the main body portion 32a, here, a surface on the back side in the depth direction Y. The incident surface 232b of the present embodiment is curved and formed in a curved surface so as to constitute a lens that refracts and diverges light together with the first emission surface 231e described above. Here, the entrance surface 232b is in the direction of the pointer optical axis in the cross-sectional view (see FIG. 9) along the pointer optical axis direction Y1 and the pointer width direction Z1 (in other words, as viewed in the pointer extending direction X1). It is formed in a substantially semicircular shape with a convex shape that protrudes on the opposite side of Y1 from the second emission surface 232c, that is, on the first emission surface 231e side. The second emission surface 232c is a surface of the main body portion 32a opposite to the surface facing the first emission surface 231e of the pointer prism member 231 with respect to the pointer optical axis direction Y1, here, the depth direction Y front side. Consists of faces. The second emission surface 232c of the present embodiment is formed as a flat surface.

  Similar to the diffusion layer 33 described above, the diffusion layer 233 is a layer that diffuses light. The diffusion layer 233 of this embodiment is provided in close contact with the second emission surface 232c of the light transmissive cap 232, and diffuses the light emitted from the second emission surface 232c. More specifically, the diffusion layer 233 is provided in close contact with the surface on the front side in the pointer optical axis direction Y1 of the second emission surface 232c. Similar to the diffusion layer 33 described above, the diffusion layer 233 is configured as a light-transmitting colored layer by, for example, hot stamp printing, coating a plurality of times, a film transfer method, and the like, and the light-transmitting colored layer is colored. The emission color (display color) of the pointer light emitter 203 can be freely set depending on the color. Here, the diffusion layer 233 is configured as a white translucent colored layer.

  The pointer prism member 231 and the light transmissive cap 232 are made of light transmissive materials having different refractive indexes. The pointer prism member 231 and the light-transmitting cap 232 are formed such that the entrance surface 232b and the first exit surface 231e are in close contact, and the first exit surface 231e and the entrance surface 232b are curved. The pointer prism member 231 and the light transmissive cap 232 are integrally formed by, for example, two-color molding so that the incident surface 232b and the first emission surface 231e are in close contact with light transmissive materials having different refractive indexes. It is formed.

  The pointer prism member 231 and the light transmissive cap 232 of this embodiment are refracted in such a combination that the refractive index of the pointer prism member 231 is relatively large and the refractive index of the light transmissive cap 232 is relatively small. It is integrally formed by two-color molding with light-transmitting materials having different rates. The pointer prism member 231 and the light transmissive cap 232 form an interface 234 when the incident surface 232b and the first emission surface 231e are in close contact with each other. The interface 234 of this embodiment is formed in a curved surface shape according to the curvature of the first exit surface 231e and the entrance surface 232b so as to constitute a lens that refracts and diverges light. Here, the interface 234 is a light-transmitting cap 232 in a cross-sectional view (see FIG. 9) along the pointer optical axis direction Y1 and the pointer width direction Z1 (in other words, viewed in the pointer extending direction X1). Viewed from the side of the pointer optical axis direction Y1, it is formed in a convex semi-circular arc shape that protrudes on the opposite side of the second emission surface 232c, that is, on the first emission surface 231e side. In other words, the interface 234 is a substantially concave shape that is depressed on the side opposite to the entrance surface 232b with respect to the pointer optical axis direction Y1, that is, on the side of the shaft portion 31a when viewed from the pointer prism member 231 in the cross-sectional view. It is formed in a semicircular arc shape. That is, the interface 234 is formed in a substantially semicircular arc shape protruding toward the back side of the pointer optical axis direction Y1 with respect to the pointer optical axis direction Y1.

  In the pointer 201 configured as described above, the light-transmitting cap 232 has at least the light emission region T22 by the second emission surface 232c in the pointer width direction Z1 than the light emission region T21 by the first emission surface 231e. The light is spread and emitted from the second emission surface 232c. The light transmissive cap 232 of the present embodiment widens the light emission region by the second emission surface 232c by the light refraction effect. Here, as described above, the pointer prism member 231 and the light transmissive cap 232 are made of light transmissive materials having different refractive indexes, and the entrance surface 232b and the first exit surface 231e are provided in close contact with each other. Since the entrance surface 232b and the first exit surface 231e are formed to be curved, the interface 234 between the entrance surface 232b and the first exit surface 231e constitutes a refracting surface. As a result, the pointer prism member 231 and the light-transmitting cap 232 constitute a lens that refracts and diverges light, and the light exit region T22 by the second exit surface 232c is defined as the first by the light refraction effect of the lens. It spreads from the light emission region T21 by the emission surface 231e.

  In the pointer 201 and the vehicle display device 100 described above, in the pointer light emitter 203, the light incident on the pointer prism member 231 is emitted from the first emission surface 231e along the pointer optical axis direction Y1, and the light transmitting cap 232 is emitted. Is incident on the second emission surface 232c and emitted along the pointer optical axis direction Y1, so that the entire pointer luminous body 203 emits light. At this time, in the pointer 201 and the vehicle display device 100, light leaking from the pointer prism member 231 along the pointer width direction Z1 is shielded by the side wall portion 5d of the pointer cap 5, etc., thereby moving the pointer optical axis direction Y1 front side. By limiting the light emitting area other than the light emitting area, the outline of the pointer light emitter 203 can be made sharp. In addition, the pointer 201 and the vehicle display device 100 widen the light emitting region of the pointer light emitter 203 by diffusing light by the diffusion layer 233 and expanding the emission region T22 by the second emission surface 232c of the light transmitting cap 232. be able to. As a result, the pointer 201 and the vehicle display device 100 can appropriately widen the light emission area of the pointer 201.

  Furthermore, according to the pointer 201 and the vehicle display device 100 described above, the diffusion layer 233 is provided in close contact with the second emission surface 232c, and the refractive index of the pointer prism member 231 and the light transmitting cap 232 is low. An incident surface 232b of the light transmissive cap 232, which is made of different light transmissive materials and receives light emitted from the first emission surface 231e, is provided in close contact with the first emission surface 231e. The surface 231e and the incident surface 232b are formed to be curved. Therefore, in the pointer 201 and the vehicle display device 100, the interface 234 between the first emission surface 231e of the pointer prism member 231 and the incident surface 232b of the light transmissive cap 232 forms a refractive surface, and the pointer prism member 231 and the light transmissive Since the cap 232 is configured as a lens that refracts and diverges light, the light emission region T22 by the second emission surface 232c is wider than the light emission region T21 by the first emission surface 231e due to the light refraction effect of the lens. be able to. In this case, the pointer 201 and the vehicle display device 100 can form the second emission surface 232c of the light transmissive cap 232 functioning as a design surface on the front side in the depth direction Y as a flat surface.

  In the above description, the pointer prism member 231 and the light transmitting cap 232 are integrally formed by two-color molding or the like so that the entrance surface 232b and the first exit surface 231e are in close contact to form the interface 234. Although described as a thing, it is not restricted to this, For example, after forming separately, you may integrate by welding etc.

  Further, the interface 234 described above is described as being formed in a curved surface shape according to the curvature of the first exit surface 231e and the entrance surface 232b so as to constitute a lens that refracts and diverges light. However, it is not limited to this. The interface 234 may be bent and formed in a polygonal shape so as to constitute a lens that refracts and diverges light. In this case, the interface 234 indicates the pointer light with respect to the pointer optical axis direction Y1 in a sectional view along the pointer optical axis direction Y1 and the pointer width direction Z1 (in other words, as viewed in the pointer extending direction X1). It may be formed in a substantially trapezoid shape by a plurality of inclined surfaces that protrude toward the back side in the axial direction Y1 and are inclined with respect to the pointer optical axis direction Y1.

  Further, the bending direction of the interface 234 is not limited to that described above. A pointer 201A as a guide for a vehicle display device according to the modification shown in FIG. 10 is a refractive index relationship between a pointer prism member 231A as a first light transmitting member and a light transmitting cap 232A as a second light transmitting member. Is the opposite of the above. In other words, the pointer prism member 231A and the light transmissive cap 232A are combined in such a way that the refractive index of the light transmissive cap 232A is relatively large and the refractive index of the pointer prism member 231A is relatively small. It is integrally formed by two-color molding with mutually different light transmissive materials.

  The pointer prism member 231A and the light transmissive cap 232A form an interface 234A when the incident surface 232bA of the light transmissive cap 232A and the first emission surface 231eA of the pointer prism member 231A are in close contact with each other. The first emission surface 231eA is in the pointer optical axis direction Y1 in a sectional view (see FIG. 10) along the pointer optical axis direction Y1 and the pointer width direction Z1 (in other words, viewed in the pointer extending direction X1). Is formed in a substantially semicircular shape with a convex shape protruding toward the incident surface 232bA. The incident surface 232bA is formed in a substantially semicircular shape having a concave shape that is recessed toward the second exit surface 232c with respect to the pointer optical axis direction Y1 in the cross-sectional view. The interface 234A is formed in a curved shape according to the curvature of the first exit surface 231eA and the entrance surface 232bA so as to constitute a lens that refracts and diverges light. The interface 234A is viewed in cross section along the pointer optical axis direction Y1 and the pointer width direction Z1 (in other words, viewed in the pointer extending direction X1), and viewed from the pointer prism member 231A, the pointer optical axis direction Y1. On the other hand, it is formed in a convex semi-circular arc shape protruding toward the second emission surface 232c. In other words, the interface 234A is formed in a substantially semicircular arc shape that is recessed in the second light exit surface 232c side with respect to the pointer optical axis direction Y1 when viewed from the light transmitting cap 232A in the cross-sectional view. . That is, the interface 234A is formed in a substantially semicircular arc shape protruding toward the front side in the pointer optical axis direction Y1 with respect to the pointer optical axis direction Y1.

  Even in this case, in the pointer 201A, the interface 234A between the first emission surface 231eA of the pointer prism member 231A and the incident surface 232bA of the light transmissive cap 232A constitutes a refracting surface, and the pointer prism member 231A, light transmissive Since the cap 232A is configured as a lens that refracts and diverges the light, the light emission region T22 by the second emission surface 232c is wider than the light emission region T21 by the first emission surface 231eA by the light refraction effect of the lens. be able to.

[Embodiment 3]
The pointer for a vehicle display device and the vehicle display device according to the third embodiment are different from the first and second embodiments in the configuration of the pointer light emitter.

  A pointer 301 as a guide for a vehicle display device according to the present embodiment shown in FIG. 11 is different from the above-described pointer 1 in that a pointer light emitter 303 is provided in place of the pointer light emitter 3, and other configurations are the same. The configuration is almost the same.

  The pointer light emitter 303 includes a pointer prism member 31 as a first light transmissive body, a light transmissive cap 332 as a second light transmissive body, and a diffusion layer 33, and these are combined. The pointer prism member 31 and the diffusion layer 33 have the same configuration as described above.

  The light transmissive cap 332 is different from the light transmissive cap 32 in that the light transmissive cap 332 includes a second light emitting surface 332c instead of the second light emitting surface 32c. The configuration is almost the same. The second emission surface 332c is a surface of the main body portion 32a opposite to the surface facing the first emission surface 31e of the pointer prism member 31 with respect to the pointer optical axis direction Y1, in this case, in the depth direction Y front side. Consists of faces.

  The light transmissive cap 332 of the present embodiment widens the light emission area by the second emission surface 332c due to the light diffusion effect. Here, in the light transmissive cap 332, the second emission surface 332c has a plurality of fine uneven portions 332f. The plurality of fine concavo-convex portions 332f are formed in a fine prism or fine grain shape, and diffuse light emitted from the second emission surface 332c. The plurality of fine concavo-convex portions 332f may have a substantially triangular cross-sectional shape as shown in FIG. 12, or a substantially semicircular cross-sectional shape as shown in FIG. Also good. The plurality of fine uneven portions 332f are continuously formed along the pointer extending direction X1 and the pointer width direction Z1. Accordingly, in the light transmissive cap 332, the second emission surface 332c on which the plurality of fine uneven portions 332f are formed constitutes a second diffusion surface different from the diffusion layer 33, and the second diffusion surface constitutes the second diffusion surface. Due to the light diffusion effect of the second emission surface 332c, the light emission region T32 by the second emission surface 332c is made wider than the light emission region T31 by the first emission surface 31e.

  In the pointer 301 and the vehicle display device 100 described above, in the pointer light emitter 303, the light incident on the pointer prism member 31 is emitted from the first emission surface 31e along the pointer optical axis direction Y1, and the light transmissive cap 332 is obtained. Is incident on the second emission surface 332c and emitted along the pointer optical axis direction Y1, so that the entire pointer luminous body 303 emits light. At this time, in the pointer 301 and the vehicle display device 100, light leaking from the pointer prism member 31 along the pointer width direction Z1 is shielded by the side wall portion 5d of the pointer cap 5, etc., thereby moving the pointer optical axis direction Y1 front side. By limiting the light emitting area other than the light emitting area, the outline of the pointer light emitter 303 can be made sharp. In addition, the pointer 301 and the vehicle display device 100 widen the light emitting region in the pointer light emitter 303 by diffusing light by the diffusion layer 33 and expanding the emission region T32 by the second emission surface 332c of the light transmissive cap 332. be able to. As a result, the pointer 301 and the vehicle display device 100 can appropriately widen the light emission area of the pointer 301.

  Furthermore, according to the pointer 301 and the vehicle display device 100 described above, the light transmissive cap 332 widens the light emission region by the second emission surface 332c by the light diffusion effect. Therefore, the pointer 301 and the vehicle display device 100 diffuse the light that is incident on the light transmissive cap 332 and emitted from the second light emission surface 332c by the optical system that the light transmissive cap 332 is configured to have. The light emission region T32 by 332c can be made wider than the light emission region T31 by the first emission surface 31e.

  Furthermore, according to the pointer 301 and the vehicle display device 100 described above, the diffusion layer 33 is provided in close contact with the first emission surface 31e, and the light transmissive cap 332 is provided from the first emission surface 31e to the diffusion layer 33. The incident surface 32b on which the light emitted via the light enters is located with a gap 32e between the diffusion layer 33 and the second emission surface 332c has a plurality of fine uneven portions 332f. Therefore, in the pointer 301 and the vehicle display device 100, the second emission surface 332c on which the plurality of fine uneven portions 332f are formed constitutes a second diffusion surface different from the diffusion layer 33, and thus constitutes the second diffusion surface. Due to the light diffusion effect of the second emission surface 332c, the light emission region T32 by the second emission surface 332c can be made wider than the light emission region T31 by the first emission surface 31e.

  In the above description, the light-transmitting cap 332 is described as having the second exit surface 332c having a plurality of fine uneven portions 332f, but is not limited thereto. Like the pointer 301A as the pointer for the vehicle display device according to the modification shown in FIG. 14, the light transmitting cap 332A may have a plurality of fine uneven portions 332fA on the incident surface 32b. The plurality of fine uneven portions 332fA have the same configuration as the fine uneven portion 332f described above, and are continuously formed along the pointer extending direction X1 and the pointer width direction Z1. Accordingly, in the light transmissive cap 332A, the incident surface 32b on which the plurality of fine uneven portions 332fA are formed constitutes a second diffusion surface different from the diffusion layer 33. Even in this case, the pointer 301A and the vehicle display device 100 define the light emission region T32 by the second emission surface 332c as the first emission surface 31e by the light diffusion effect of the incident surface 32b constituting the second diffusion surface. The light emission region T31 can be expanded.

[Embodiment 4]
The pointer for a vehicle display device and the vehicle display device according to the fourth embodiment are different from the first, second, and third embodiments in the configuration of the pointer light shielding body.

  A pointer 401 as a pointer for a vehicle display device according to this embodiment shown in FIGS. 15, 16, 17, and 18 includes a pointer cover 405 as a pointer light shielding body instead of the pointer stem 2 and the pointer cap 5. And different from the above-mentioned guideline 1. More specifically, the pointer 401 of the present embodiment includes a pointer light emitter 403, a balancer 4, and a pointer cover 405 as a pointer light-shielding body that is also used as a connection base, and is guided through the rotation shaft 106. The whole pointer light emitter 403 emits light by the emitted light. The balancer 4 has the same configuration as that described above.

  The pointer light emitter 403 of this embodiment includes a pointer prism member 431 as a first light transmitter, a light-transmitting cap 32 as a second light transmitter, and a diffusion layer 33, which are combined. Composed. The pointer prism member 431 is different from the above-described pointer prism member 31 in that it does not include the supported portion 31c and the assembly hole portion 31f, and other configurations are substantially the same as those of the pointer prism member 31. The light transmissive cap 32 and the diffusion layer 33 have the same configuration as described above.

  The pointer cover 405 of the present embodiment is a light-shielding member that is attached to the pointer light emitter 403 and shields part of the light, and connects the rotary shaft 106 and the pointer light emitter 403 to connect the pointer light emitter 403 to the rotary shaft 106. It is also used as a connection support member that is supported so as to be integrally rotatable. The pointer cover 405 is formed of a light shielding material so as to extend along the pointer extending direction X1, covers the pointer prism member 431 from both sides of the pointer width direction Z1, and leaks from the pointer prism member 431 along the pointer width direction Z1. Block out light. The pointer cover 405 includes a slit portion 405a, a rotary shaft connecting portion 405b, and a disc light shielding portion 405c, and these are integrally formed of a light shielding resin material that shields light.

  The slit portion 405a is a portion having a bottom portion 405d and a side wall portion 405e, and a hollow portion 405f for accommodating the main body portion 31b of the pointer prism member 431 is formed by the bottom portion 405d and the side wall portion 405e. The bottom portion 405d is a bottom body formed in a plate shape extending along the pointer extending direction X1, and is a portion that supports the pointer light emitter 403 on one surface in the pointer optical axis direction Y1. The side wall portion 405e extends from the bottom portion 405d to the front side in the pointer optical axis direction Y1 and extends along the pointer extending direction X1, and is formed in a frame shape, thereby defining the hollow portion 405f. In other words, the side wall portion 405e is a wall body that stands up from the bottom portion 405d along the pointer optical axis direction Y1 so as to surround the hollow portion 405f. Moreover, the side wall part 405e has the latching claw part 405g (refer FIG. 18). A total of two locking claws 405g are provided on each inner wall surface facing the pointer width direction Z1 in the side wall portion 405e. Each latching claw portion 405g is formed in a protruding shape from each inner wall surface, and is fitted into and latched with the light guide hollow portion 31d of the pointer prism member 431 so that the pointer prism member 431 is placed in the hollow portion 405f. To be locked. Further, the inner wall surface in which the locking claw portion 405g is formed in the side wall portion 405e, that is, each inner wall surface that faces the pointer width direction Z1, extends in the pointer width direction from the back side to the front side in the pointer optical axis direction Y1. It is configured as an inclined taper surface whose width along Z1 gradually increases (see FIG. 18). The hollow portion 405f is a space portion defined by the bottom portion 405d and the side wall portion 405e, and opens to the front side in the pointer optical axis direction Y1. The slit portion 405a includes the first emission surface 31e of the main body portion 31b and the diffusion layer 33 from the opening of the hollow portion 405f in a state where the main body portion 31b of the pointer prism member 431 is accommodated in the hollow portion 405f. Is exposed to the front surface side in the direction Y1 of the pointer optical axis. In this state, each locking claw portion 405g is fitted and locked in the light guide hollow portion 31d of the pointer prism member 431, thereby locking the pointer prism member 431 in the hollow portion 405f. Further, the side wall portion 405e covers the pointer prism member 431 from both sides in the pointer width direction Z1, shields light leaking from the pointer prism member 431 along the pointer width direction Z1, and holds the pointer prism member 431.

  The rotating shaft connecting portion 405 b is a portion called a soot that is connected to the rotating shaft 106 and connects the rotating shaft 106 and the pointer light emitter 403. The rotary shaft connecting portion 405b is formed in a cylindrical shape having a hollow inside, and is formed to protrude from the bottom portion 405d of the slit portion 405a along the pointer optical axis direction Y1. The rotary shaft connecting portion 405b is formed to protrude on the side opposite to the surface supporting the pointer light emitter 403 at the bottom portion 405d, and an internal hollow portion passes through the bottom portion 405d and opens on both sides in the pointer optical axis direction Y1. (Refer to FIG. 17, FIG. 18, etc.). The rotary shaft connecting portion 405b communicates with the inside of the hollow portion 405f at the hollow portion inside. In the rotary shaft connecting portion 405b, the rotary shaft 106 is fitted into one end opening in the pointer optical axis direction Y1, and the shaft portion 31a of the pointer light emitter 403 is fitted into the other end opening in the pointer optical axis direction Y1. Thus, the rotary shaft 106 and the shaft portion 31a are connected so as to be integrally rotatable.

  The disc light-shielding portion 405c is a portion that is formed in a substantially disc shape at the connection portion between the slit portion 405a and the rotating shaft connecting portion 405b. The disc light-shielding portion 405c is formed to have a larger diameter than the opening 103a formed in the dial plate 103, shields light that is emitted from the light source 107 and leaks through the opening 103a, and the leaked light is visually observed by a driver or the like. Regulate reaching position.

  The pointer 401 configured as described above interposes the balancer 4 at a predetermined position between the main body 31b of the pointer prism member 431 and the bottom 405d of the pointer cover 405, and the main body 31b is between the side wall 405e. The pointer cover 405 is attached to the pointer prism member 431 together with the balancer 4 in such a positional relationship that the first emission surface 31e and the diffusion layer 33 are exposed from the opening of the hollow portion 405f of the slit portion 405a. In this case, the pointer 401 is inserted so that the balancer 4 and the shaft portion 31a side of the pointer prism member 431 are inserted from the front side in the pointer optical axis direction Y1 with respect to the opening of the hollow portion 405f of the slit portion 405a. The prism member 431, the balancer 4, and the pointer cover 405 are assembled and integrated. At this time, in the pointer 401, each inner wall surface facing the pointer width direction Z1 in the side wall portion 405e is configured as a tapered surface as described above, so that the pointer prism member 431 can be easily inserted into the hollow portion 405f. It can be configured. The pointer 401 has the pointer prism member 431, the balancer 4, and the pointer cover 405 assembled thereto, and each locking claw portion 405g is fitted and locked to the light guide hollow portion 31d, thereby the pointer prism. The member 431 is locked in the hollow portion 405f, and the side wall portion 405e covers the pointer prism member 431 from both sides in the pointer width direction Z1, and holds the pointer prism member 431. The pointer 401 is provided such that the protruding edge portion 32d of the light transmissive cap 32 is mounted in close contact with the end surface of the side wall portion 405e. Here, the light transmissive cap 32 is integrated with the pointer cover 405 by, for example, adhesion or welding via an adhesive. In the state where the pointer prism member 431, the balancer 4, and the pointer cover 405 are assembled, the pointer 401 is supported on the bottom portion 405d of the pointer cover 405, and the shaft portion 31a is rotated by the pointer cover 405. The shaft is connected to the shaft connecting portion 405b so as to be integrally rotatable with the rotating shaft.

  In the pointer 401 and the vehicle display device 100 described above, in the pointer light emitter 403, the light incident on the pointer prism member 431 is emitted from the first emission surface 31e along the pointer optical axis direction Y1, and the light transmissive cap 32. Is incident on the second emission surface 32c and emitted along the pointer optical axis direction Y1, so that the entire pointer light emitter 403 emits light. At this time, in the pointer 401 and the vehicle display device 100, the light leaking from the pointer prism member 431 along the pointer width direction Z1 is shielded by the side wall portion 405e of the pointer cover 405 and the like to the front side of the pointer optical axis direction Y1. By limiting the light emitting area other than the light emitting area, the outline of the pointer light emitter 403 can be made sharp. In addition, the pointer 401 and the vehicle display device 100 are configured to emit the pointer light emitter by diffusing light by the diffusion layer 33 and expanding the emission region T12 (see FIG. 7 and the like) by the second emission surface 32c of the light transmissive cap 32. The light emitting region in 403 can be expanded. As a result, the pointer 401 and the vehicle display device 100 can appropriately widen the light emission area of the pointer 401.

  Furthermore, according to the pointer 401 and the vehicle display device 100 described above, the pointer cover 405 covers the pointer light emitter 403 from both sides of the pointer width direction Z1, and the side wall portion 405e that holds the pointer light emitter 403, and the rotation. The rotating shaft connecting portion 405b is connected to the drivable rotating shaft 106, and the side wall portion 405e and the rotating shaft connecting portion 405b are integrally formed. Therefore, the pointer 401 and the vehicle display device 100 can share the configuration for holding and shielding the pointer light emitter 403 and the configuration for connecting the pointer light emitter 403 and the rotating shaft 106 by the pointer cover 405. Therefore, the number of component parts can be suppressed, and for example, the manufacturing cost can be suppressed. In addition, since the pointer 401 and the vehicle display device 100 do not have to include the above-described configuration of the supported portion 31c, the assembly hole portion 31f, and the like, for example, the outer shape can be reduced, and for example, the light shielding of the disc Since the outer diameter of the portion 405c can be made relatively small, the disc light-shielding portion 405c can be made less noticeable, and the sharpness of the contour of the pointer light emitter 403 can be improved.

  Further, the pointer 401 described above is provided so that the light transmissive cap 32 covers the end surface on the light emission side by the first emission surface 31e in the side wall portion 405e of the pointer cover 405. The gap with the side wall portion 405e is less visible and can be made inconspicuous.

[Embodiment 5]
The pointer for a vehicle display device and the vehicle display device according to the fifth embodiment are different from those of the first, second, third, and fourth embodiments in the configuration of the pointer light shielding body and the connection base.

  19, 20, 21, 22, and 23, a pointer 501 as a pointer for a vehicle display device according to the present embodiment includes a pointer stem 502 as a connection base instead of the pointer stem 2 and the pointer cap 5. It differs from the above-described pointer 1 in that it includes a pointer cap 505 as a pointer light shield. Other configurations are substantially the same as those of the pointer 1.

  The pointer stem 502 of the present embodiment is a connection support member that connects the rotary shaft 106 and the pointer light emitter 3 and supports the pointer light emitter 3 on the rotary shaft 106 so as to be integrally rotatable. The pointer stem 502 includes a base portion 521, a cylindrical shaft portion 22, and a balancer support portion 21b, and these are integrally formed of a light-blocking resin material that blocks light.

  The base 521 is a portion that is formed in a plate shape extending along the pointer extending direction X1 and that supports the pointer light emitter 3 on one surface in the pointer optical axis direction Y1. The base 521 has a circular plate portion 21g in which a portion to which the cylindrical shaft portion 22 is connected is formed in a substantially circular plate shape, and an assembly hole portion 21a is formed in the circular plate portion 21g (see FIG. 20 and the like). . The assembly hole 21a is a part to which the pointer cap 505 is assembled, and two are provided here. The base portion 521 is provided with a plurality of, for example, two prism support portions 21 c that support the main body portion 31 b of the pointer prism member 31. Each prism support portion 21c is provided on the distal end side in the pointer extending direction X1 of the pointer 501 with respect to the circular plate portion 21g, and is formed to protrude to the front side in the pointer optical axis direction Y1 of the base portion 521. Each prism support portion 21c supports the side where the main body portion 31b of the pointer prism member 31 has a large amount of protrusion.

  The balancer support portion 21b is a portion that supports the balancer 4, and is provided on the rear end side of the pointer extending direction X1 of the circular plate portion 21g via a connecting portion 21h. The balancer support portion 21b has a bottom portion 21e and a side wall portion 21d. The bottom 21e extends along the pointer extending direction X1 and is formed in a plate shape. The balancer 4 is placed on the bottom 21e. The side wall portion 21d extends from the bottom portion 21e to the front side in the pointer optical axis direction Y1 and extends along the pointer extending direction X1, and is formed in a frame shape, thereby defining the hollow portion 21f. In other words, the side wall portion 21d is a wall body that is erected along the pointer optical axis direction Y1 so as to surround the hollow portion 21f. The hollow portion 21 f accommodates a part of the balancer 4. The hollow portion 21f accommodates, for example, the end portion side of the balancer 4 in the pointer optical axis direction Y1.

  The pointer cap 505 is formed of a light-shielding material so as to extend along the pointer extending direction X1, covers the pointer prism member 31 from both sides of the pointer width direction Z1, and leaks from the pointer prism member 31 along the pointer width direction Z1. Block out light. The pointer cap 505 covers the balancer 4 partially accommodated in the balancer support portion 21b from the front side in the pointer optical axis direction Y1, and covers the exposed portion of the balancer 4. The pointer cap 505 includes a shaft cover portion 5a and a slit portion 505b, and these are integrally formed of a light-blocking resin material that blocks light.

  The slit portion 505b has a side wall portion 505d, and the side wall portion 505d is a portion where the main body portion 31b of the pointer prism member 31 and the hollow portion 505e that accommodates the exposed portion of the balancer 4 are formed. The side wall portion 505d extends from the shaft portion cover portion 5a to the front side in the pointer optical axis direction Y1 and extends along the pointer extending direction X1, and is formed in a frame shape. The side wall portion 505d includes a front wall portion 505f provided on the front side of the shaft portion cover portion 5a in the pointer extending direction X1 and a rear wall provided on the rear side of the shaft portion cover portion 5a in the pointer extending direction X1. Part 505g. The front wall portion 505f is a portion that surrounds the side where the main body portion 31b of the pointer prism member 31 has a large amount of protrusion in the pointer extending direction X1. The rear wall portion 505g is a portion that surrounds the side where the main body portion 31b of the pointer prism member 31 projects less in the pointer extending direction X1 and the exposed portion of the balancer 4.

  In the state where the pointer cap 505 is attached to the pointer stem 502, the rear wall portion 505g has an end portion 505h on the pointer stem 502 side in the pointer optical axis direction Y1 in the pointer optical axis direction of the side wall portion 21d of the balancer support portion 21b. It contacts the end 21i of Y1 on the pointer cap 505 side (see FIG. 23). That is, the rear wall portion 505g surrounds the exposed portion of the balancer 4 from both sides in the pointer width direction Z1 without being covered by the balancer support portion 21b in a state where the pointer cap 505 is attached to the pointer stem 502. In other words, the rear wall portion 505g indicates the exposed portion of the balancer 4 without overlapping the side wall portion 21d of the balancer support portion 21b in the pointer width direction Z1 with the pointer cap 505 attached to the pointer stem 502. Enclose from both sides in the width direction Z1. With this configuration, the pointer 501 can reduce the width size of the pointer cap 505 in the pointer width direction Z1 compared to the conventional case where the rear wall portion 505g is covered on the balancer support portion 21b. Can be improved. The interval W1 in the pointer width direction Z1 of the rear wall portion 505g is larger than the interval W2 of the side wall portion 21d of the balancer support portion 21b (see FIG. 23). That is, the rear wall portion 505g of the pointer cap 505 covers the side wall portion 21d of the balancer support portion 21b when viewed from the viewing position of the driver or the like. With this configuration, the pointer 501 can suppress the conspicuous boundary between the rear wall portion 505g of the pointer cap 505 and the side wall portion 21d of the balancer support portion 21b when visually recognized from the visual position of the driver or the like. Designability can be improved. The pointer 501 can further suppress the conspicuousness of the boundary by making the color of the rear wall portion 505g of the pointer cap 505 the same color as the color of the side wall portion 21d of the balancer support portion 21b.

  The side wall portion 505d defines the hollow portion 505e. The hollow portion 505e is formed so as to communicate with the inside of the shaft portion cover portion 5a and opens to the front side in the pointer optical axis direction Y1. The slit portion 505b is configured such that the main body portion 31b of the pointer prism member 31 is accommodated in the hollow portion 505e in a state in which the shaft portion cover portion 5a is mounted on the pointer prism member 31. The one exit surface 31e and the diffusion layer 33 are exposed to the front side of the pointer optical axis direction Y1. In the state where the main body portion 31b is accommodated in the hollow portion 505e, the slit portion 505b covers at least the main body portion 31b of the pointer prism member 31 from both sides in the pointer width direction Z1 and covers the pointer prism member 31. The light leaking from the main body portion 31b along the pointer width direction Z1, in other words, the light emitted from other than the first emission surface 31e is shielded.

  The pointer 501 and the vehicle display device 100 described above include a pointer stem 502 that supports the pointer light emitter 3 so as to be integrally rotatable on a rotary shaft 106 that can be driven to rotate. The pointer stem 502 includes a balancer support portion 21b that supports the balancer 4 that adjusts the weight balance of the pointer light emitter 3 in the pointer extending direction X1. The balancer support portion 21b has a bottom portion 21e and a side wall portion 21d. The bottom 21e extends along the pointer extending direction X1 and is formed in a plate shape. The side wall portion 21d extends from the bottom portion 21e to the front side in the pointer optical axis direction Y1 and extends along the pointer extending direction X1 and is formed in a frame shape. In the pointer cap 505, an end portion 505h on the pointer stem 502 side in the pointer optical axis direction Y1 contacts an end portion 21i on the pointer cap 505 side in the pointer optical axis direction Y1 of the side wall portion 21d of the balancer support portion 21b.

  With this configuration, the pointer 501 and the vehicle display device 100 can support and cover the balancer 4 with the balancer support portion 21 b and the pointer cap 505. Compared to the case where the pointer cap 505 is placed on the side wall portion 21d of the balancer support portion 21b as in the prior art, the pointer 501 and the like can reduce the width size of the pointer cap 505 in the pointer width direction Z1. Can be improved. That is, since the end portion 505h of the side wall portion 505d of the pointer cap 505 contacts the end portion 21i of the side wall portion 21d of the balancer support portion 21b, the side wall portion 505d of the pointer cap 505 spreads in the pointer width direction Z1. This can be suppressed. As a result, the pointer 501 and the like can be made slim because the width of the pointer cap 505 in the pointer width direction Z1 can be made relatively thin, and the design can be improved.

  Next, a light emission example of the light transmissive cap 32 will be described. For example, as shown in FIGS. 24 and 25, the light-transmitting cap 32 has a mirror surface portion E1 in which the entire second emission surface 32c is mirror-finished. With this configuration, the light transmissive cap 32 emits light, which is incident on the incident surface 32b from the diffusion layer 33, emitted from the second emission surface 32c to the front side along the pointer optical axis direction Y1. As shown in FIG. 24, the light transmitting cap 32 can emit light with a clear texture by the mirror surface portion E1 of the second emission surface 32c by the light emission of the mirror surface portion E1.

  As shown in FIGS. 26 and 27, the light-transmitting cap 532 according to the modification includes a mirror surface portion E2 in which the second exit surface 32c is mirror-finished and a texture portion E3 in which the texture processing is performed. doing. The light transmissive cap 532 is provided with a mirror surface portion E2 in a linear shape along the pointer extending direction X1 on the top of the second light exit surface 32c in the pointer optical axis direction Y1, and on both sides of the linear mirror surface portion E2. The embossed portion E3 is linearly provided along the pointer extending direction X1. That is, the light-transmitting cap 532 is provided with a mirror surface portion E2 at the center of the second emission surface 32c in a sectional view along the pointer optical axis direction Y1 and the pointer width direction Z1 (see FIG. 27). The parts E3 are provided on both sides of the mirror surface part E2.

  With this configuration, the light transmissive cap 532 emits light that is incident on the incident surface 32b from the diffusion layer 33 to the front side along the pointer optical axis direction Y1 from the mirror surface portion E2 of the second emission surface 32c. . Further, in the light transmissive cap 532, the light incident on the incident surface 32b from the diffusion layer 33 is emitted to the front side along the pointer optical axis direction Y1 from each embossed portion E3 of the second emission surface 32c and emits light. As shown in FIG. 26, the light transmission cap 532 can emit light with a texture in which the outline of the second emission surface 32c is blurred, and light emission different from that of the light transmission cap 32. The design can be realized by directing. Further, the light-transmitting cap 532 can alleviate the uneven brightness of the pointer light emitter 3 by the light emission of each embossed portion E3.

  As shown in FIGS. 28 and 29, the light transmissive cap 532a according to the modification has a textured portion E4 in which the entire second emission surface 32c is textured. With this configuration, the light-transmitting cap 532a emits light that is incident on the incident surface 32b from the diffusion layer 33 and emitted from the embossed portion E4 of the second emission surface 32c to the front side along the pointer optical axis direction Y1. . Due to the light emission of the embossed portion E4, the light transmissive cap 532a can emit light with a blurred texture on the entire second emission surface 32c, as shown in FIG. 28, and is different from the light transmissive caps 32 and 532. The design can be realized by directing light. Further, the light-transmitting cap 532a can alleviate the uneven brightness of the pointer light emitter 3 by the light emission of each embossed portion E4.

  In addition, the pointer for vehicle display devices and the vehicle display device according to the above-described embodiments of the present invention are not limited to the above-described embodiments, and various modifications can be made within the scope described in the claims. . The indicator for a vehicle display device and the vehicle display device according to the present embodiment may be configured by appropriately combining the components of the embodiments and modifications described above.

  In the above description, the pointers 1, 1 </ b> A, 201, 201 </ b> A, 301, 301 </ b> A, 401, and 501 are configured so that the rotating shaft 106 that constitutes the rotor shaft of the motor 104 transmits the light from the light source 107. Although it has been described that it functions as a light guide shaft that guides light to 403, the present invention is not limited to this, and light is incident on the pointer light emitters 3, 203, 303, and 403 from light sources arranged at other positions without using the rotation shaft 106. It may be configured to.

  In the above description, the light transmissive caps 32, 232, 232 A, 332, 332 A are the pointer caps 5, 505, the side wall portions 5 d, 505 d of the pointer cover 405, and the first light exit surfaces 31 e, 231 e, 231 eA. However, the present invention is not limited to this, and it may be provided in a positional relationship that does not cover the end surface.

[Reference example]
In addition, as reference examples regarding the technique for emitting the indicator for the vehicle display device, there are pointers 601 and 701 as the indicator for the vehicle display device shown in FIGS. 30, 31, 32, 33, and 34. Hereinafter, the pointers 601 and 701 according to the reference example will be described with reference to FIGS. 30, 31, 32, 33, and 34.

  The pointer 601 according to FIGS. 30, 31, and 32 is configured to easily recognize the pointer 601 even at night by illuminating the dial plate 103 with indirect light from the pointer 601. The pointer 601 includes a pointer light emitter 602 and a rotation shaft connection portion 603, and the pointer light emitter 602 emits light by light guided through the rotation shaft 106.

  The pointer light emitter 602 is a light emitting member that emits light by light guided through the rotation shaft 106, and constitutes a pointer main body. The pointer light emitter 602 includes a shaft portion 604 and a main body portion 605, which are integrally formed of a resin material.

  The shaft portion 604 is a portion formed in a columnar shape along the pointer optical axis direction Y1, and is connected to the rotating shaft 106 via the rotating shaft connecting portion 603 so as to be integrally rotatable. The shaft portion 604 functions as an incident portion on which light guided through the rotation shaft 106 enters along the pointer optical axis direction Y1.

  The main body portion 605 is a portion that extends from the end portion of the shaft portion 604 along the pointer extending direction X1. The main body 605 is provided at the end of the shaft 604 opposite to the end connected to the rotating shaft 106. The main body portion 605 is formed so as to protrude from the end portion of the shaft portion 604 to both sides in the pointer extending direction X1.

  And the main-body part 605 of this reference example is comprised including the opaque part 605a and the transparent part 605b, and these are integrally formed. Both the opaque part 605a and the transparent part 605b extend along the pointer extending direction X1. The opaque portion 605a is formed in a straight bar shape, and a concave portion 605c is formed on the surface on the back side in the pointer optical axis direction Y1, that is, the surface on the shaft portion 604 side. The concave portion 605c opens on the back side in the pointer optical axis direction Y1, that is, on the shaft portion 604 side, and extends from one end to the other end along the pointer extending direction X1 in the opaque portion 605a. . In the opaque portion 605a, a reflection projection 605d is formed at a position facing the shaft portion 604 in the concave portion 605c with respect to the pointer optical axis direction Y1, and a reflection diffusion portion 605e is formed at the bottom of the concave portion 605c. . The reflective protrusion 605d is formed in a substantially fan-shaped triangle in a cross-sectional view (see FIG. 30) along the pointer extending direction X1 and the pointer optical axis direction Y1 (in other words, as viewed in the pointer width direction Z1). Is done. Furthermore, the reflecting protrusion 605d has a tapered shape on the side of the shaft portion 604 in the pointer optical axis direction Y1 in the cross-sectional view, and extends as the distance from the shaft portion 604 increases along the pointer optical axis direction Y1. The shape is formed such that the width along the existing direction X1 gradually increases. The reflective protrusion 605d functions as a reflective light guide surface in which the surface forming the reflective protrusion 605d reflects and diffuses the light incident on the shaft portion 604 in the pointer extending direction X1 and guides it to the entire body 605. To do. The reflection diffusion portion 605e is formed on the bottom surface of the concave portion 605c on the back surface in the pointer optical axis direction Y1, that is, on the surface on the shaft portion 604 side, more specifically on the boundary surface with the transparent portion 605b described later. A plurality of fine irregularities 605f that reflect and diffuse light from 605d are formed. The transparent portion 605b is densely provided in the concave portion 605c and extends from one end of the concave portion 605c to the other end along the pointer extending direction X1.

  The pointer light emitter 602 is formed of a light-blocking resin material in which the opaque portion 605a of the main body portion 605 blocks light, while the shaft portion 604 and the transparent portion 605b of the main body portion 605 transmit light. These are formed of a permeable resin material, and these are integrally formed by two-color molding.

  The rotating shaft connecting portion 603 is a portion called a soot that is connected to the rotating shaft 106 and connects the rotating shaft 106 and the pointer light emitter 602. The rotary shaft connecting portion 603 is formed in a hollow cylindrical shape, and the rotary shaft 106 is fitted into one end opening in the pointer optical axis direction Y1, and the pointer is set in the other end opening in the pointer optical axis direction Y1. When the shaft portion 604 of the light emitter 602 is fitted, the rotating shaft 106 and the shaft portion 604 are connected so as to be integrally rotatable.

  In the pointer 601 configured as described above, light incident on the shaft portion 604 of the pointer light emitter 602 from the light source 107 via the rotation shaft 106 is guided into the transparent portion 605b of the main body portion 605, and the opaque portion 605a The light is reflected and diffused in the pointer extending direction X1 by the reflection protrusion 605d and guided to the entire transparent portion 605b along the pointer extending direction X1. The pointer 601 has a plurality of fine uneven portions 605f formed on the reflection diffusion portion 605e of the opaque portion 605a, and the back side of the pointer optical axis direction Y1, that is, the dial plate. The light is reflected and diffused to the 103 side, and indirectly illuminates the area near the pointer 601 on the dial plate 103 by the light (see FIGS. 30, 32, etc.). As a result, the pointer 601 according to the present reference example can illuminate the area near the pointer 601 on the dial plate 103 by the indirect light from the pointer 601, so that the outline of the pointer 601 emerges even at night, for example. 601 can be easily recognized.

  The pointer 701 according to FIGS. 33 and 34 is configured so that the vicinity of the outer surface of the pointer 701 emits light entirely so that the pointer 701 can be easily recognized even at night. The pointer 701 includes a pointer light emitter 702 and a rotation shaft connection portion 703, and the pointer light emitter 702 emits light by light guided through the rotation shaft 106.

  The pointer light emitter 702 is a light emitting member that emits light by light guided through the rotation shaft 106, and constitutes a pointer main body. The pointer light emitter 702 includes a shaft portion 704 and a main body portion 705, which are integrally formed of a resin material.

  The shaft portion 704 is a portion formed in a column shape along the pointer optical axis direction Y1, and is connected to the rotating shaft 106 via the rotating shaft connecting portion 703 so as to be integrally rotatable. The shaft portion 704 functions as an incident portion where light guided through the rotation shaft 106 enters along the pointer optical axis direction Y1.

  The main body portion 705 is a portion that extends from the end portion of the shaft portion 704 along the pointer extending direction X1. The main body 705 is provided at the end of the shaft 704 opposite to the end connected to the rotating shaft 106. The main body portion 705 is formed so as to protrude from the end portion of the shaft portion 704 to both sides in the pointer extending direction X1.

  And the main-body part 705 of this reference example is comprised including the transparent part 705a and the opaque part 705b, and these are formed integrally. Both the transparent portion 705a and the opaque portion 705b extend along the pointer extending direction X1. The transparent portion 705a is formed in a substantially cylindrical bar shape, and extends along the pointer extending direction X1. The opaque part 705b is built in the transparent part 705a. That is, the transparent portion 705a covers the entire circumference of the opaque portion 705b. The opaque portion 705b is formed in a substantially rectangular plate shape in which the pointer optical axis direction Y1 is the plate thickness direction, and extends from one end of the transparent portion 705a to the other end along the pointer extending direction X1. The opaque portion 705b is formed with a reflection projection 705c at a position facing the shaft portion 704 with respect to the pointer optical axis direction Y1, and the front surface side in the pointer optical axis direction Y1, that is, the shaft portion 704 side. A reflection diffusion portion 705d is formed on the opposite surface. The reflective protrusion 705c is formed in a substantially fan-like shape in a sectional view (see FIG. 33) along the pointer extending direction X1 and the pointer optical axis direction Y1 (in other words, as viewed in the pointer width direction Z1). Is done. Furthermore, the reflecting protrusion 705c has a tapered shape on the side of the shaft portion 704 in the pointer optical axis direction Y1 in the cross-sectional view, and extends as the pointer moves away from the shaft portion 704 along the pointer optical axis direction Y1. The shape is formed such that the width along the existing direction X1 gradually increases. The reflective protrusion 705 c functions as a reflective light guide surface in which the surface forming the reflective protrusion 705 c reflects and diffuses the light incident on the shaft portion 704 in the pointer extending direction X 1 and guides it to the entire body 705. To do. The reflection diffusion portion 705d has a plurality of fine uneven portions 705e for reflecting and diffusing light from the reflection projection portion 705c on the front surface side in the pointer optical axis direction Y1 which is a boundary surface with the transparent portion 705a. .

  The pointer light emitter 702 is formed of a light-transmitting resin material in which the shaft portion 704 and the transparent portion 705a of the main body portion 705 transmit light, while the opaque portion 705b of the main body portion 705 blocks light. These are formed of a light-shielding resin material, and these are integrally formed by two-color molding.

  The rotating shaft connecting portion 703 is a portion called a soot that is connected to the rotating shaft 106 and connects the rotating shaft 106 and the pointer light emitter 702. The rotary shaft connecting portion 703 is formed in a hollow cylindrical shape, and the rotary shaft 106 is fitted in one end opening in the pointer optical axis direction Y1, and the pointer is inserted in the other end opening in the pointer optical axis direction Y1. By fitting the shaft portion 704 of the light emitter 702, the rotary shaft 106 and the shaft portion 704 are connected to be integrally rotatable.

  In the pointer 701 configured as described above, light incident on the shaft portion 704 of the pointer light emitter 702 from the light source 107 via the rotation shaft 106 is guided into the transparent portion 705a of the main body portion 705, and the opaque portion 705b The light is reflected and diffused in the pointer extending direction X1 by the reflecting protrusion 705c and guided to the entire transparent portion 705a along the pointer extending direction X1. The pointer 701 emits light from the entire transparent portion 705a when a part of the light guided to the entire transparent portion 705a is emitted from the outer surface of the transparent portion 705a. Further, the pointer 701 reflects another part of the light guided to the entire transparent portion 705a on the outer surface (interface) of the transparent portion 705a and propagates through the inside of the transparent portion 705a. It reaches the reflection diffusion part 705d formed on the front surface side in the pointer optical axis direction Y1, and the front side in the pointer optical axis direction Y1, that is, the driver or the like by a plurality of fine uneven parts 705e formed in the reflection diffusion part 705d. Is reflected and diffused toward the viewing position side, and emits light with higher brightness than other parts (see FIG. 33 and the like). As a result, in the pointer 701 according to this reference example, the luminance of the opaque portion 705b located at the center of the pointer light emitter 702 is propagated through the transparent portion 705a and reaches the reflection diffusion portion 705d of the opaque portion 705b. Since the light can be emitted so as to be relatively high, for example, the pointer 701 can be easily recognized even at night.

  Note that a transparent fluorescent material that emits light by irradiating ultraviolet rays may be applied to the pointer 601 and the pointer 701 according to the reference example described above. In this case, the pointer 601 is composed of an ultraviolet LED element that the light source 107 emits ultraviolet rays, and a transparent fluorescent material is applied to the surface of the dial plate 103 so that the dial plate 103 is illuminated by the ultraviolet light from the pointer 601. Light can be emitted and the pointer 601 can be easily recognized. On the other hand, the pointer 701 is composed of an ultraviolet LED element that the light source 107 emits ultraviolet rays, and the shaft portion 704 of the pointer light emitter 702 and the transparent portion 705a of the main body portion 705 are formed of a transparent fluorescent material. The entire transparent portion 705a is caused to emit light, so that the pointer 701 can be easily recognized.

1, 1A, 201, 201A, 301, 301A, 401, 501 pointer (vehicle display device pointer)
2,502 Pointer stem (connection base)
3, 203, 303, 403 Pointer light emitter 4 Balancer 5, 405, 505 Pointer cap (pointer light shield)
5d, 405e Side wall part 21b Balancer support part 21d Side wall part 21e Bottom part 21i, 505h End part 31, 231, 231A, 431 Pointer prism member (first light transmitting body)
31e, 231e, 231eA First emission surface 32, 232, 232A, 332, 332A Light transmissive cap (second light transmissive body)
32b, 232b, 232bA Incident surface 32c, 32cA, 232c, 332c Second exit surface 32e Gap 33, 233 Diffusion layer 100 Vehicle display device 102 Case 104 Motor (drive unit)
106 Rotating shaft 107 Light source 332f, 332fA Fine uneven portion 405 Pointer cover (pointer light shielding body)
405b Rotating shaft connecting portions T11, T12, T21, T22, T31, T32 Emitting area X1 Pointer extending direction Y1 Pointer optical axis direction Z1 Pointer width direction

Claims (7)

A first light transmitting body that is formed by a light-transmitting material so as to extend along the pointer extending direction, and that emits incident light from the first emission surface along the pointer optical axis direction intersecting the pointer extending direction. The light transmitting material is formed so as to extend along the pointer extending direction and to face the first emission surface with respect to the pointer optical axis direction, and to emit light incident from the first emission surface. A second light transmitting member that emits from the second emitting surface along the direction of the pointer optical axis, and light that is emitted from the first emitting surface and incident on the second light transmitting member, or from the second emitting surface. A pointer light emitter having a diffusion layer for diffusing the emitted light;
The first light-transmitting body is formed by a light-shielding material so as to extend along the pointer extending direction, and covers the first light transmitting body from both sides of the pointer optical axis direction and the pointer width direction intersecting the pointer extending direction. A pointer light shielding body that shields light leaking from the light transmitting body along the pointer width direction,
The second light transmitting body emits light from the second emission surface by expanding a light emission region by the second emission surface from a light emission region by the first emission surface at least in the pointer width direction. It is characterized by
Guidelines for vehicle display devices. The pointer light shielding body includes a side wall portion that covers the first light transmitting body from both sides in the pointer width direction and extends along the pointer optical axis direction,
The second light transmitting body covers an end surface on the light emission side of the first emission surface in the side wall portion,
The pointer for a vehicle display device according to claim 1. The second light transmitting body widens a light emission area by the second emission surface by a light refraction effect.
The pointer for a vehicle display device according to claim 1 or 2. The diffusion layer is provided in close contact with the first emission surface,
The second light transmitting body is located such that an incident surface on which light emitted from the first emitting surface through the diffusion layer is incident has a gap between the second emitting surface and the second emitting surface. Is formed by bending or bending,
The guide for a vehicle display device according to claim 3. The pointer light shielding body includes a side wall portion that covers the first light transmission body from both sides in the pointer width direction and holds the first light transmission body, and a rotary shaft connection portion that is connected to a rotary shaft that can be driven to rotate. And the side wall portion and the rotary shaft connecting portion are formed integrally.
The pointer for a vehicle display device according to any one of claims 1 to 4. A connection base for supporting the pointer light emitter so as to rotate integrally with a rotary shaft capable of being driven to rotate;
The connection base includes a balancer support portion that supports a balancer that adjusts the weight balance of the pointer light emitter in the direction in which the pointer extends.
The balancer support is
A bottom portion extending in the direction of extension of the pointer and formed in a plate shape;
A side wall portion that protrudes from the bottom portion to the front side in the direction of the pointer optical axis and extends along the direction of extension of the pointer and is formed in a frame shape,
In the pointer light shielding body, an end portion on the connection base portion side in the pointer optical axis direction abuts on an end portion on the pointer light shielding body side in the pointer optical axis direction of the side wall portion of the balancer support portion.
The pointer for a vehicle display device according to any one of claims 1 to 4. A light source that emits light;
A drive unit having a rotation shaft capable of being rotated;
A housing for housing the light source and the driving unit;
A pointer connected to the rotary shaft and driven to rotate;
The guidelines are:
A first light transmitting body that is formed by a light-transmitting material so as to extend along the pointer extending direction, and that emits incident light from the first emission surface along the pointer optical axis direction intersecting the pointer extending direction. The light transmitting material is formed so as to extend along the pointer extending direction and to face the first emission surface with respect to the pointer optical axis direction, and to emit light incident from the first emission surface. A second light transmitting member that emits from the second emitting surface along the direction of the pointer optical axis, and light that is emitted from the first emitting surface and incident on the second light transmitting member, or from the second emitting surface. A pointer light emitter having a diffusion layer for diffusing the emitted light;
The first light-transmitting body is formed by a light-shielding material so as to extend along the pointer extending direction, and covers the first light transmitting body from both sides of the pointer optical axis direction and the pointer width direction intersecting the pointer extending direction. A pointer light shielding body that shields light leaking from the light transmitting body along the pointer width direction,
The second light transmitting body emits light from the second emission surface by expanding a light emission region by the second emission surface from a light emission region by the first emission surface at least in the pointer width direction. It is characterized by
Vehicle display device.

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