WO2011136040A1 - 指針式計器 - Google Patents
指針式計器 Download PDFInfo
- Publication number
- WO2011136040A1 WO2011136040A1 PCT/JP2011/059346 JP2011059346W WO2011136040A1 WO 2011136040 A1 WO2011136040 A1 WO 2011136040A1 JP 2011059346 W JP2011059346 W JP 2011059346W WO 2011136040 A1 WO2011136040 A1 WO 2011136040A1
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- WO
- WIPO (PCT)
- Prior art keywords
- pointer
- display
- light
- display unit
- front side
- Prior art date
Links
- 238000005286 illumination Methods 0.000 abstract description 9
- 238000006073 displacement reaction Methods 0.000 abstract description 8
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 30
- 239000000446 fuel Substances 0.000 description 20
- 239000000463 material Substances 0.000 description 19
- 230000002093 peripheral effect Effects 0.000 description 7
- 229920003002 synthetic resin Polymers 0.000 description 6
- 239000000057 synthetic resin Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000470 constituent Substances 0.000 description 3
- 230000003760 hair shine Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920003217 poly(methylsilsesquioxane) Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/28—Structurally-combined illuminating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/60—Instruments characterised by their location or relative disposition in or on vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D13/00—Component parts of indicators for measuring arrangements not specially adapted for a specific variable
- G01D13/02—Scales; Dials
- G01D13/12—Graduation
- G01D13/20—Graduation with luminescent markings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/20—Optical features of instruments
- B60K2360/33—Illumination features
Definitions
- the present invention relates to a pointer-type instrument.
- the display unit of the pointer-type instrument is uniformly illuminated from the viewpoint of visibility.
- the pointer-type instrument disclosed in Patent Document 1 is disposed in the vicinity of the rotation axis, and displays a light source that emits light in a direction from the rotation axis toward the outer edge of the display plate, and the light emitted from the light source.
- a reflection part that reflects in the direction of the plate and other reflection parts provided in the vicinity of the rotation axis are provided so that the light from the light source is diffusely reflected and reflected by the reflection part to uniformly illuminate the display part. Has been tried.
- JP 2004-226285 A Japanese Utility Model Publication No. 4-79214
- the main path of light reaching the display unit from the light source is a path that is reflected once by the reflection unit and reaches the display plate. May not be sufficiently diffused to uniformly illuminate the display portion.
- the present invention has been made in view of the above circumstances, and a first object of the present invention is to provide a pointer-type instrument having good uniformity of illumination on a display unit even when the number of light sources is small. is there.
- a second object of the present invention is to provide a pointer-type meter in which there is no or little displacement of each member when it is positioned.
- a pointer-type meter is: A circuit board; A display board disposed on the front side of the circuit board and provided with a first display unit; A pointer indicating the first display unit; A pointer-type meter provided with a rotation shaft for rotating the pointer,
- the circuit board includes a first light source that emits light in a direction toward the rotation axis,
- the pointer-type instrument is disposed between the circuit board and the display board, surrounds at least a part of the periphery of the rotation shaft, and transmits the light emitted from the first light source to the outer edge of the display unit.
- a first reflecting portion that reflects toward the screen, and is disposed between the circuit board and the display plate, reflects the light reflected by the first reflecting portion, and causes the first display portion to be reflected from the back side.
- a second reflecting portion for illuminating.
- a pointer-type instrument is: A first member constituting the back case; A second member disposed on the front side of the first member and having a display; A third member that is a front case that covers the second member and has a transparent member that allows the display unit to be visually recognized, The first member extends from the bottom surface of the first member in a front side direction, passes through the second member, and reaches the third member, so that the first member is in contact with the first member.
- One or more rod-shaped positioning members for positioning the second member and the third member are provided.
- a pointer-type meter is: A first member constituting the back case; A second member disposed on the front side of the first member and having a display; A third member that is a front case that covers the second member and has a transparent member that allows the display unit to be visually recognized, The third member extends from the bottom surface of the third member in the rear side direction, passes through the second member, and reaches the first member, whereby the third member is Two or more rod-shaped positioning members for positioning the two members and the first member are provided.
- the uniformity of illumination on the display unit is good even if the number of light sources is small. Moreover, according to the pointer-type measuring instrument which concerns on the 2nd and 3rd viewpoint of this invention, there is little or little position shift of each member when it positions.
- FIG. 2 is an enlarged plan view of a speedometer and the like included in the meter body of FIG. 1.
- FIG. 4 is a schematic cross-sectional view along AA in FIG. 3.
- FIG. 2 is a schematic enlarged plan view of a speedometer or the like included in the meter body of FIG. 1 excluding a display board and a pointer.
- FIG. 3 is a schematic cross-sectional view taken along the line BB of FIG.
- the pointer-type instrument is a vehicle instrument 1.
- the structure of the vehicle instrument 1 will be described with reference to FIGS.
- the vehicle instrument 1 is an instrument device that includes a speedometer, a tachometer (engine tachometer), and a fuel gauge. Each of these includes a pointer, a stepping motor, a display unit, and the like, which will be described later.
- the vehicle instrument 1 includes a back case 2 (an example of a first member), an instrument body 3 (an example of a second member), and a front case 4 (an example of a third member).
- the back side case 2 and the front side case 4 house the meter body 3 and are combined with each other to constitute the vehicle meter 1.
- the back case 2 is located on the back side of the instrument body 3, and the front case 4 is located on the front side of the instrument body 3.
- the “table” is the direction of the user's viewpoint with respect to the vehicle instrument 1 when the user (for example, the driver of the vehicle in which the vehicle instrument 1 is incorporated) visually recognizes the vehicle instrument 1 from the front. (Refer to FIG. 1).
- “back” refers to the direction toward the vehicle instrument 1 with respect to the user's viewpoint (see FIG. 1).
- the upper side is referred to as “upper” below
- the lower side is referred to as “lower” below (FIG. 1).
- the right (right direction in FIG. 2) when the user views the vehicle instrument 1 from the front side is referred to as “right” below
- the left (left direction in FIG. 2) is referred to as “left” below (FIG. 2). reference).
- the instrument body 3 includes a display plate 31, an intermediate member 32 (which constitutes a so-called middle case), a circuit board 33, a liquid crystal panel 325 (an example of a third display unit), a pointer 3111, a pointer 3121, , And a pointer 3131.
- the circuit board 33 is attached to the intermediate member 32 from the back side.
- the display panel 31 and the liquid crystal panel 325 are disposed on the surface of the intermediate member 32.
- the intermediate member 32 is positioned between the display board 31 and the liquid crystal panel 325 and the circuit board 32.
- the intermediate member 32 is formed by providing three second through holes 320 that are holes that are penetrated by the positioning member 21 described later. The shape of the three holes provided will be described in detail later. In addition, as long as it does not deviate from the meaning of this embodiment, there may be more than three holes or fewer than three holes.
- the circuit board 33 includes a plate-like base material 330, a first stepping motor 331 for rotating the pointer 3111, a second stepping motor (not shown) for rotating the pointer 3121, and a first step for rotating the pointer 3131.
- a three-stepping motor (not shown), a first light emitting element 332a (an example of a first light source), a second light emitting element 332b (an example of a second light source), and a third light emitting element 332c (a first light source) 3), a fourth light emitting element 332d (an example of the fourth light source), and another light source (not shown).
- the other light source (not shown) is mounted on the front surface or the back surface of the substrate 330.
- the base material 330 is formed by providing three third through holes 330 that are holes penetrated by the positioning member 21 described later. The shape of the three holes provided will be described in detail later. In addition, as long as it does not deviate from the meaning of this embodiment, there may be more than three holes or fewer than three holes.
- the circuit board 33 further includes other electronic components (not shown) mounted on the base material 330, and a control circuit that drives and controls the above-described components such as the stepping motor 331 is configured by these electronic components.
- control circuit operates the first stepping motor 331, the second stepping motor, the third stepping motor, and the like according to the supplied control signal.
- the control circuit appropriately controls the first light emitting element 332a, the second light emitting element 332b, the third light emitting element 332c, the fourth light emitting element 332d, another light source, and the like in accordance with a control signal supplied from the outside. Light up at the timing.
- the first stepping motor 331 is mounted on the back surface of the base material 330, and has a rotation shaft 3110 that passes through a through-hole formed in the base material 330 and extends to the front surface side of the base material 330.
- a pointer 3111 is attached to the rotation shaft 3110.
- the control circuit operates the stepping motor 331 based on a control signal supplied from the outside and corresponding to the vehicle speed. Accordingly, the stepping motor 331 rotates the rotation shaft 3110 at an angle (rotation angle) according to the vehicle speed to rotate the pointer 3111 by the rotation angle.
- the second stepping motor is mounted on the back surface of the base material 330, has a rotation shaft 3120 that extends through the through-hole formed in the base material 330 and extends to the front surface side of the base material 330.
- a pointer 3121 is attached to the rotation shaft 3120.
- the control circuit operates the second stepping motor based on a control signal supplied from the outside and corresponding to the engine speed. As a result, the second stepping motor rotates the rotation shaft 3120 at an angle (rotation angle) corresponding to the rotational speed of the engine to rotate the pointer 3121 by the rotation angle.
- the third stepping motor is mounted on the back surface of the base material 330 and has a rotation shaft 3130 that extends through the through-hole formed in the base material 330 and extends to the front surface side of the base material 330.
- a pointer 3131 is attached to the rotation shaft 3130.
- the control circuit operates the third stepping motor based on a control signal corresponding to the amount of remaining fuel supplied from the outside. Accordingly, the third stepping motor rotates the rotation shaft 3130 at an angle (rotation angle) corresponding to the amount of remaining fuel to rotate the pointer 3131 by the rotation angle.
- the first light emitting element 332a is mounted on the surface of the base material 330, and when viewed from the front side, the vehicle instrument 1 is outside the first reflecting portion 321 (described later) with the rotation shaft 3110 as a reference.
- the speed display section (an example of the first display section) 311 is provided on the outer edge side.
- the first light emitting element 332a is a side view type light source that emits light in a direction (a direction substantially perpendicular to the front and back direction) from the outer edge side of the speed display unit 311 toward the rotation shaft 3110. LED (Light Emitting Diode).
- the first light emitting element 332a is mainly used to illuminate a speed display unit 311 described later.
- the second light emitting element 332b is mounted on the surface of the base material 330, and is provided on the inner side (the rotating shaft 3110 side) than the first reflecting portion 321 when the vehicular instrument 1 is viewed from the front side. .
- the second light emitting element 332b is a top view type light source that emits light (toward the front side) toward a warning display unit 314 (an example of a second display unit) described later. LED.
- a plurality of the second light emitting elements 332b are mounted (there may be one), and each second light emitting element 332b is used to illuminate each element 314a in a warning display unit 314 described later.
- the third light emitting element 332c is mounted on the surface of the base material 330, and when viewed from the front side, the vehicle instrument 1 is positioned on the opposite side of the first light emitting element 332a with respect to the rotation shaft 3110, and The liquid crystal panel 325 is provided at a position on the outer side (the liquid crystal panel 325 side described below, that is, the lower side) of the third reflective unit 323 described later.
- the third light emitting element 332c is a side view type light source that emits light in a direction from the opposite position to the rotation shaft 3110, and is, for example, a side view type LED.
- the first light emitting element 332a is mainly used to illuminate a liquid crystal panel 325 described later.
- the fourth light emitting element 332d is mounted on the surface of the substrate 330 and in the vicinity of the rotation shaft 3110.
- the fourth light emitting element 332d is a top view type light source that emits light toward the front side, and is, for example, a top view type LED.
- the fourth light emitting element 332d is used to illuminate the pointer 3111.
- the pointer 3111 includes a light guide unit (not shown). When the light guide unit receives light emitted from the fourth light emitting element 332d, a part or the whole of the pointer 3111 emits light. The user can know the traveling speed even in a dark place, for example, by indicating the speed display unit 311 illuminated by the first light emitting element 332a by the pointer 3111 that emits light in this way.
- a plurality of the other light sources are appropriately mounted on the surface of the base material 330 and used to illuminate a rotation speed display unit 312 and a fuel display unit 313 which will be described later.
- the display board 31 includes a speed display unit 311 that is an indicator unit for displaying the vehicle speed, a speed display unit 312 that is an indicator unit for displaying the engine speed, and a remaining fuel as each display unit of the vehicle information.
- the display board 31 includes a plate-shaped member made of a synthetic resin and having a predetermined shape, and a decorative layer formed on the front surface and / or the back surface of the plate-shaped member by painting, printing, or the like. Each display unit is expressed by the decoration layer.
- each display unit is expressed by a letter (or a picture) or the like, and thus transmits light.
- the decorative layer may be formed so that the area around each display unit transmits light and each display unit blocks light.
- the speed display unit 311, the rotation speed display unit 312, the fuel display unit 313, the warning display unit 314, and the like, which are the display units are respectively provided in the first light emitting element 332 a.
- the second light-emitting element 332b and other light sources are illuminated by light from the light source, whereby each display unit shines or the surroundings shine, and the user can visually recognize each display unit even in a dark place, for example. Become.
- the display panel 31 is formed by providing three first through holes 310 that are holes penetrated by a positioning member 21 described later.
- the shape of the three holes provided will be described in detail later.
- the speed display unit 311 includes a plurality of scales 311a and a plurality of numerical values 311b.
- a user who visually recognizes the pointer 3111 that rotates at a rotation angle corresponding to the traveling speed indicates the scale 311a or the interval (that is, indicates the speed display unit 311) by the first stepping motor 331.
- the scale 311 a and the numerical value 311 b are arranged in a substantially arc shape so as to surround a part of the periphery of the rotation shaft 3110. That is, the speed display unit 311 is formed in a substantially arc shape so as to surround a part of the periphery of the rotation shaft 3110.
- the speed display portion 311 is formed in a substantially semicircular arc shape as an example of a substantially arc shape, but as another example of a substantially arc shape, for example, it is formed in a substantially 1/4 arc shape. May be.
- the speed display unit 311 is not limited to a substantially arc shape as long as the speed display unit 311 is instructed by the pointer 3111 and can display the speed, and any other shape can be used as long as it surrounds a part of the periphery of the rotating shaft 3110. It may be a shape.
- the speed display unit 311 may be an index unit or the like that allows the user to grasp the speed when instructed by the pointer 3111. Therefore, the speed display unit 311 is other than a plurality of scales 311a and a plurality of numerical values 311b. Or the like.
- the warning display unit 314 is disposed in the vicinity of the rotation shaft 3110.
- the warning display unit 314 includes a plurality of warning symbol symbols (an example of an element 314a of the warning display unit 314) such as a seat belt wearing sign, a low battery sign, a low gasoline sign, a half-door sign, and the like. )including.
- the number of elements 314a may be one.
- the rotation speed display unit 312 includes a plurality of scales 312a and a plurality of numerical values 312b.
- the pointer 3121 that rotates at a rotation angle corresponding to the rotation speed of the engine indicates the scale 312a or between them (that is, indicates the rotation speed display unit 312), and this is visually recognized.
- the user can grasp the engine speed based on the scale 312a and the numerical value 312b.
- the rotation speed display unit 312 is formed in a substantially arc shape.
- the rotation speed display unit 312 is not limited to a substantially arc shape, as long as it has a shape that can be indicated by the pointer 3121 and display the rotation speed.
- the rotation speed display unit 312 may be an index unit or the like that allows the user to grasp the engine rotation speed when instructed by the pointer 3121. Therefore, the rotation speed display unit 312 includes a plurality of scales 312a and a plurality of scales 312a. You may comprise from things other than the numerical value 312b.
- the fuel display unit 313 includes a plurality of scales 313a and a plurality of characters 313b.
- the pointer 3131 that rotates at a rotation angle corresponding to the amount of remaining fuel indicates the scale 313a or between them (that is, indicates the fuel display unit 313), and this is visually recognized.
- the user can grasp the amount of remaining fuel on the basis of the scale 313a and the character 313b.
- the characters 313b are composed of characters necessary for grasping the remaining fuel, such as F (Full) and E (Empty) shown in FIG.
- the fuel display unit 313 is formed in a substantially arc shape, but may be any shape as long as it is instructed by the pointer 3131 and can display the amount of remaining fuel. Any other shape may be used as long as it surrounds a part of the periphery of the rotation shaft 3130. Further, since the fuel display unit 313 may be an indicator unit or the like that allows the user to grasp the amount of remaining fuel when instructed by the pointer 3131, the fuel display unit 313 includes a plurality of scales 313a and a plurality of characters 313b. You may be comprised from things other than.
- the intermediate member 32 includes a first reflecting portion 321, a second reflecting portion 322, a third reflecting portion 323, and a fourth reflecting portion 324.
- the intermediate member 32 is configured in a shape described below, for example, with a hard synthetic resin.
- the first reflection part 321, the second reflection part 322, the third reflection part 323, and the fourth reflection part 324 each include, for example, a mirror-finished surface of the intermediate member.
- the intermediate member 32 is formed as a single member here, but may be composed of a plurality of members.
- the intermediate member 32 has a shape that rises from the base material 330 and surrounds the rotation shaft 3110.
- the outer member 32 includes a surrounding body 327 having a substantially pentagonal cross section, and the surrounding body 327 includes the first reflecting portion 321 and the surrounding body 327. And the third reflecting portion 323.
- the enclosure 327 includes an internal wall 327a that partitions an internal space (internal space 327b).
- a plurality of internal spaces 327b are formed by the internal wall 327a so that the back side of each element 314a corresponds to each internal space 327b corresponding to each element 314a of the warning display unit 314.
- the second light emitting element 332b is mounted in each internal space 327b.
- the element 314a of the warning display unit 314 corresponding to the internal space 327b in which the second light emitting element 332b is located is directly illuminated, so that the element 314a of the warning display unit 314 is illuminated. Shines brightly.
- the intermediate member 32 has a plate-like shape that rises from the base material 330, and as shown in FIG. 5, the wall-like body 326 corresponding to both ends of the speed display portion 311 and the lower side of the outer edge of the liquid crystal panel 325 described later. It has.
- portions corresponding to both ends of the speed display portion 311 are formed in a substantially C shape when the vehicle instrument 1 is viewed from the front side, and the second reflection It is connected to both ends of the part 322 respectively.
- a portion corresponding to the lower side of the outer edge of the liquid crystal panel 325 is formed in a substantially U-shape when the vehicle instrument 1 is viewed from the front side.
- the second portion 326b and the fourth reflecting portion 324 of the wall-like body 326 are connected.
- the first reflection part 321 is a part of the outer peripheral wall 327c of the enclosure 327 on the first light emitting element 332a side, and substantially consists of a part that faces the third reflection part 323.
- the reflecting surface of the first reflecting portion 321 is configured by a part of the outer peripheral surface of the surrounding body 327 (a surface facing the second reflecting portion 322). In this way, the first reflecting portion 321 is provided so as to surround a part of the periphery of the rotating shaft 3110 (which may be the whole as a modified example).
- the first reflecting portion 321 is directed toward the outer edge of the speed display portion 311 when the light emitted from the first light emitting element 332a is viewed from the front side of the vehicle instrument 1 (that is, a second to be described later). (Refer to the reflecting portion 322) and reflect (see the dashed line arrows in FIGS. 3 to 5). 3 to 5 indicate the main light paths.
- the third reflecting portion 323 is a portion of the outer peripheral wall 327c of the enclosure 327 on the third light emitting element 332c side, and constitutes a lower portion (a portion on the liquid crystal panel 325 side).
- the reflective surface of the third reflective portion 323 is configured by a lower surface (surface on the liquid crystal panel 325 side) of the outer peripheral surface of the enclosure 327.
- the third reflecting portion 321 is configured so that the light emitted from the third light emitting element 332c is directed toward the outer edge of the vehicle instrument 1 when the vehicle instrument 1 is viewed from the front side (that is, the liquid crystal panel 325 side). (Refer to the dashed-dotted arrows in FIGS. 3 to 5).
- the second reflection part 322 is formed corresponding to the speed display part 311. Specifically, for example, the second reflection unit 322 is formed on the back surface side of the speed display unit 311 in accordance with the shape of the speed display unit 311.
- the second reflecting portion 322 is substantially opposite to the first reflecting portion 321. In this manner, the second reflecting portion 322 is provided so as to surround a part of the periphery of the rotating shaft 3110 (which may be all modified as a modified example).
- the reflection surface of the second reflection portion 322 is a surface facing the front side, and is a surface having an inclination with respect to a direction perpendicular to the front and back directions.
- the second reflection unit 322 reflects the light that has reached the second reflection unit 322 toward the speed display unit 311.
- the speed display unit 311 is illuminated by the light reflected by the second reflecting unit 322 (see the dashed-dotted arrows in FIGS. 3 to 5).
- the fourth reflecting portion 324 is formed corresponding to a liquid crystal panel 325 described later. Specifically, for example, the fourth reflecting portion 324 is formed on the back side of the liquid crystal panel 325 in accordance with the shape of the liquid crystal panel 325. The fourth reflecting portion 324 is substantially opposite to the third reflecting portion 323. Further, the reflection surface of the fourth reflection part 324 is a surface facing the front side, and is a surface having an inclination with respect to a direction perpendicular to the front and back directions. The fourth reflection unit 324 reflects the light that has reached the fourth reflection unit 324 toward the liquid crystal panel 325. The liquid crystal panel 325 is illuminated by the light reflected by the fourth reflecting portion 324 (see the dashed line arrows in FIGS. 3 to 5).
- the liquid crystal panel 325 is disposed at a position opposite to the speed display unit 311 (lower side) with respect to the rotation shaft 3110. Further, the liquid crystal panel 325 is electrically connected to the circuit board 33.
- the control circuit of the circuit board 33 drives the liquid crystal panel 325 based on a control signal supplied from the outside, and causes the liquid crystal panel 325 to display predetermined information such as a travel distance. Further, the liquid crystal panel 325 is illuminated from the back side by the light reflected by the fourth reflecting portion 324 and emits the light, thereby displaying the predetermined information.
- the instrument is formed so that a first substantially closed space corresponding to the speed display unit 311 and a second substantially closed space corresponding to the liquid crystal panel 325 are formed between the display board 31 and the circuit board 33.
- the main body 3 (particularly the intermediate member 32) is configured.
- the intermediate member 32 also partitions the first substantially closed space and the second substantially closed space.
- the first substantially closed space includes the display board 31, the circuit board 33, a part of the outer peripheral wall of the enclosure 327 including the reflective surface of the first reflective portion 321, and the reflective surface of the second reflective portion 322. , A space generally surrounded by the first portion 326a of the wall-like body 326.
- the second substantially closed space is a space substantially surrounded by the display board 31, the circuit board 33, the reflecting surface of the third reflecting portion 323, and the second portion 326 b of the wall-like body 326.
- the instrument body 3 (intermediate member 32) is configured to form the respective substantially closed spaces as described above (see FIG. 4), and the first substantially closed space and the second substantially closed space. And a gap through which a part of the light emitted from the first light emitting element 332a or the third light emitting element 332c passes is formed (see FIG. 5). That is, the intermediate member 32 also partitions the gap.
- the first substantially closed space and the second substantially closed space are not closed spaces but are substantially closed spaces.
- the first reflecting portion 321 and the second reflecting portion 322 reflect the light emitted from the first light emitting element 332a, so that the speed indicator 311 is displayed.
- the uniformity of illumination can be improved.
- the first reflecting unit 321 first reflects the light emitted from the first light emitting element 332a toward the outer edge of the speed display unit 311, and the second reflecting unit 322
- the light reflected by the first reflection unit 321 is reflected in the direction of the speed display unit 311. Accordingly, the ratio of the light reflected twice or more by the first reflecting part 321 and the second reflecting part 322 in the light reaching the speed display part 311 from the first light emitting element 332a is increased. Therefore, the light diffusion efficiency can be improved.
- the vehicular instrument 1 has good illumination uniformity to the speed display unit 311 even if the number of light sources is small.
- only one first light emitting element 332a is provided.
- a plurality of first light emitting elements 332a may be provided so as to face the enclosure 327 (the reflection surface of the first reflection portion 321) as necessary.
- a plurality of first reflection portions 321 may be provided corresponding to the plurality of first light emitting elements 332a.
- the vehicle instrument 1 at least a part of the light emitted from the first light emitting element 332a other than the light reflected by the first reflecting portion 321 is emitted from the second reflecting portion 322 (in particular, the first light emitting element 332a). 2 at both end portions of the reflecting portion 322), the light is reflected by the second reflecting portion 322, and the speed display portion 311 is illuminated from the back side. In such a configuration, both end portions of the speed display portion 311 (regions far from the first light emitting element 332a) are illuminated by the light reflected once by the second reflecting portion 322. Such a configuration also contributes to the uniformity of illumination to the speed display unit 311.
- the light that is emitted from the first light emitting element 332a and travels along the edge of the light that spreads radially when the vehicular instrument 1 is viewed from the front side is the first reflection.
- the shape of the first reflecting portion 321 and the length in the left-right direction and the positional relationship between the first light emitting element 322a and the first reflecting portion 321 are set so as to move outward in the left-right direction from the end of the portion 321.
- a part of the light emitted from the first light emitting element 332a reaches the second reflecting portion 322 directly.
- the left-right direction refers to a direction perpendicular to the up-down direction.
- the first reflecting portion 321 is configured such that the distance between the reflecting surface of the first reflecting portion 321 and the first light emitting element 332a increases. It is formed so as to protrude toward the first light emitting element 332a so that the incident angle of the light emitted from 332a to the reflecting surface is increased (see FIG. 3). With such a shape, light emitted from the first light emitting element 332a is reflected by the first reflecting unit 321 corresponding to the speed display unit 311, and light that is not reflected by the first reflecting unit 321 is reflected. The first reflection part 321 directly reaches the vicinity of both ends of the second reflection part 322 without being blocked by the first reflection part 321.
- Such a shape of the first reflection part 321 also contributes to the uniformity of illumination to the speed display part 311. Further, the center position of the first reflecting portion 321 having such a shape (the position of the apex of the substantially pentagonal enclosure 327 when the display plate 31 is viewed from the front side) and the optical axis center of the first light emitting element 332a. A virtual line (see the two-dot chain line in FIG. 5) is connected to the center position of the speedometer display unit 311 (second reflection unit 322) (in FIG.
- the minimum necessary number is obtained.
- the entire area of the speed display portion 311 can be effectively illuminated by the first light emitting element 332a (in this embodiment, a single first light emitting element 332a).
- the shape of the first reflecting portion 321 is substantially the same as the shape of the upper side of the pentagon when the vehicle instrument 1 is viewed from the front side. However, it is not limited to this.
- the first position is such that the center position (the center position in the left-right direction) of the reflecting surface of the first reflecting portion 321 faces the first light emitting element 332a.
- the reflecting portion 321 and the first light emitting element 332a are arranged.
- the second light emitting element 332b illuminates the element 314a of the warning display unit 314 by emitting light.
- the first light emitting element 332a is not provided in the vicinity of the rotation shaft 3110, and the upper surface of the enclosure 327 having the first reflecting portion 321 is provided. Since the rotation shaft 3110 is not close to the rotation shaft 3110, the second light emitting element 332 b can be provided on the rotation shaft 3110 side from the first reflecting portion 321. Thereby, the warning display part 314 illuminated from the back side by the 2nd light emitting element 332b can be provided. Therefore, in the vehicle instrument 1 according to the present embodiment, it is possible to increase the degree of freedom of design of the display board. Note that this is also because the first light-emitting element 332a is positioned outside the enclosure 327.
- the third reflecting portion 323 and the fourth reflecting portion 324 reflect the light emitted from the third light emitting element 332c, whereby the liquid crystal panel 325 is reflected.
- the uniformity of illumination can be improved.
- the third reflecting portion 323 reflects the light emitted from the third light emitting element 332c toward the side opposite to the rotation shaft 3110
- the fourth reflecting portion 324 includes the third reflecting portion 324.
- the structure reflects the light reflected by the reflecting portion 323 in the direction of the liquid crystal panel 325, and includes the third reflecting portion 323 and the fourth reflecting portion that include light that reaches the back surface of the liquid crystal panel 325 from the third light emitting element 332c. Since the ratio of light that is reflected twice or more by 324 can be increased, light diffusion efficiency can be improved. With this structure, the vehicular instrument 1 according to the present embodiment has good illumination to the liquid crystal panel 325 even if the number of light sources is small.
- the vehicle instrument 1 includes a first substantially closed space corresponding to the speed display unit 311 and a second substantially closed space corresponding to the liquid crystal panel 325 between the circuit board 33 and the display board 31. And forming a gap through which a part of the light emitted from the first light-emitting element 332a or the third light-emitting element 332c passes through the first substantially closed space and the second substantially closed space. It is configured. Therefore, even if one of the first light-emitting element 332a and the third light-emitting element 332c becomes unlit, the light emitted from the other illuminates the space that is unlit through the gap.
- the vehicle instrument 1 allows the speed display unit 311 and the liquid crystal panel 325 even when either the first light emitting element 332a or the third light emitting element 332c is not lit. It is possible to exhibit a fail-safe function that makes it visible.
- the intermediate member 32 etc. should just be a structure which has the function demonstrated above, the shape etc. can be changed suitably.
- the said structure such as each reflection part, was demonstrated as what a speedometer has in the above, in addition to this, it replaces with this and a tachometer, a fuel meter, etc. may have the said structure.
- the back case 2 is made of hard synthetic resin or the like, and includes three positioning members 21.
- the instrument body 3 is arranged (stored) on the front side of the back case 2.
- the front side case 4 includes an attachment member 41 (a so-called turning member) and a transmission member 42.
- the attachment member 41 is made of hard synthetic resin or the like.
- the transmissive member 42 is made of, for example, full-surface glass or synthetic resin having visible light permeability.
- the attachment member 41 and the transmission member 42 are fitted by a protrusion or the like that one or both have, and constitute the front side case 4.
- the front side case 4 is arranged so as to cover the front side of the instrument body 3 and is combined with the back side case 2 so that the instrument body 3 is accommodated by the back side case 2 and the front side case 4, and the instrument body 3 is Protect from. The user visually recognizes the movement of each pointer included in the meter body 3, each display portion (particularly a portion that shines), and the like through the transmission member 42 included in the front side case 4.
- the positioning member 21 is a rod-shaped member and is formed in a round pin shape.
- the through-holes (first through-hole 310, second through-hole 320, and third through-hole 3300) of the instrument body 3 are vertically extended from the bottom surface of the back case 2 in the front direction.
- the instrument body 3 and the front case 4 are positioned with respect to the back case by penetrating and reaching the front case 4.
- the display board 31, the intermediate member 32, and the circuit board 33 which comprise the instrument main body 3 are penetrated by the positioning member 21, and are positioned at once. In this manner, the main members constituting the vehicle instrument 1 can be positioned and fixed at once by the positioning member 21 provided on the back case 2.
- the back side case 2 has the positioning member 21, but as a modification, the front side case 4 is positioned instead of the back side case 2 not having the positioning member 21. You may have a member. Further, only a part of the positioning members 21 among the positioning members 21 may be provided in the front case 4. Further, each through hole of the first through hole 310, the second through hole 320, and the third through hole (one in the lower side in FIG. 2 (a hole corresponding to the reference positioning member 210 described later)) is round. It is a round hole having a size substantially matching the pin-shaped positioning member 21.
- each of the first through-hole 310, the second through-hole 320, and the third through-hole (one in each of the upper and left sides in FIG. 2) has an inner diameter on the side extending toward the round hole.
- the dimension is larger than the positioning member 21 by a predetermined dimension, and the inner diameter dimension on the side orthogonal thereto is a long hole having a size matching the positioning member 21.
- the longitudinal axis of each long hole (see the two-dot chain line in FIG. 2) intersects at the center of the round hole.
- the round hole may have any shape as long as it is a hole or notch that fits with the positioning member 21 without play (no displacement is allowed), and may be a square hole, for example.
- the inner diameter of the elongated hole extending toward the round hole is larger than the positioning member 21 by a predetermined dimension so as to allow play of the positioning member 21, and the inner diameter of the side perpendicular to the elongated hole is free of play of the positioning member 21.
- the shape is arbitrary as long as the hole has a size that suppresses the above.
- the attachment member 41 constituting the front case 4 also has a round hole corresponding to the reference positioning member 210 and a long hole corresponding to the other positioning member 21, as with each through hole of the instrument body 3. . Similar to the round hole, the round hole provided in the mounting member 41 may have any shape as long as it is a hole or notch that fits with the positioning member 21 without play (no displacement is allowed).
- the long hole provided in the attachment member 41 also has an inner diameter dimension on the side extending toward the round hole larger than the positioning member 21 by a predetermined dimension so as to allow play of the positioning member 21.
- the shape is arbitrary as long as the inner diameter dimension on the side perpendicular thereto is a hole having a size that suppresses play of the positioning member 21.
- one of the three positioning members 21 and the positioning member 21 corresponding to the round hole has two display portions (in particular, instructions by a pointer). It is desirable that the display unit is required to be disposed between the rotation shafts of the two pointers that respectively point to the display unit that requires accuracy.
- the circle between the rotation shaft 3110 of the speedometer and the rotation shaft 3120 of the tachometer between the broken lines passing through the respective rotation shafts in FIG. 2).
- a reference positioning member 210 corresponding to the hole is arranged (in FIG. 1 and FIG. 2, the positioning member 21 thus arranged is used as the reference positioning member 210).
- the positioning members 21 other than the reference positioning member 210 are provided so as to regulate the displacement of the intermediate member 32 of the circuit board 33 in the rotation direction around the reference positioning member 210.
- the positioning members 21 other than the reference positioning member 210 are provided so as to regulate the displacement of the intermediate member 32 of the circuit board 33 in the rotation direction around the reference positioning member 210.
- the display board 32 has a plate-shaped member made of synthetic resin, its dimensions may vary depending on the surrounding environment. Even if the dimension of the display plate 32 is changed by arranging the reference positioning member 210 between the rotation axes of the two pointers that respectively indicate the two display portions, the reference positioning member 210 is used as a center. Since the dimensions of the display plate 32 change, the deviation between each of the two display portions and the indication of the pointer is reduced. Thus, it is possible to satisfy the guideline instruction standard in the manufacturing process and improve the product yield.
- the pointer-type instrument according to the present invention is the vehicle instrument 1, but the present invention is not limited to this. It can also be used for other pointer-type instruments, for example, aviation instruments, marine instruments, watches, and the like.
- the present invention can be used for a pointer-type instrument.
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Abstract
Description
回路基板と、
前記回路基板の表側に配置され、第1の表示部を備える表示板と、
前記第1の表示部を指示する指針と、
前記指針を回動させる回動軸と、を備えた指針式計器であって、
前記回路基板は、前記回動軸に向かう方向に光を出射する第1の光源を備え、
前記指針式計器は、前記回路基板と前記表示板との間に配置され、前記回動軸の周囲の少なくとも一部を囲み、前記第1の光源から出射された前記光を前記表示部の外縁に向かって反射する第1の反射部と、前記回路基板と前記表示板との間に配置され、前記第1の反射部で反射した前記光を反射して前記第1の表示部を裏側から照光する第2の反射部と、をさらに備える。
裏側ケースを構成する第1の部材と、
前記第1の部材の表側に配置され、表示部を有する第2の部材と、
前記第2の部材を覆い、前記表示部を視認可能とする透明部材を有する表側ケースである第3の部材と、を備える指針式計器であって、
前記第1の部材は、前記第1の部材の底面から表側方向に延設され、前記第2の部材を貫き前記第3の部材に到達することで、前記第1の部材に対して前記第2の部材及び前記第3の部材を位置決めする、棒状の位置決め部材を一以上有する。
裏側ケースを構成する第1の部材と、
前記第1の部材の表側に配置され、表示部を有する第2の部材と、
前記第2の部材を覆い、前記表示部を視認可能とする透明部材を有する表側ケースである第3の部材と、を備える指針式計器であって、
前記第3の部材は、前記第3の部材の底面から裏側方向に延設され、前記第2の部材を貫き前記第1の部材に到達することで、前記第3の部材に対して前記第2の部材及び前記第1の部材を位置決めする、棒状の位置決め部材を一以上有する。
2 裏側ケース
21 位置決め部材
210 基準位置決め部材
3 計器本体
31 表示板
310 第1貫通孔
311 速度表示部
311a 目盛り
311b 数値
3110 回動軸
3111 指針
312 回転数表示部
312a 目盛り
312b 数値
3120 回動軸
3121 指針
313 燃料表示部
313a 目盛り
313b 文字
3130 回動軸
3131 指針
314 警告表示部
314a 要素
32 中間部材
320 第2貫通孔
321 第1の反射部
322 第2の反射部
323 第3の反射部
324 第4の反射部
325 液晶パネル
326 壁状体
326a 第1の部分
326b 第2の部分
327 囲み体
327a 内部壁
327b 内部空間
327c 外周壁
33 回路基板
330 基材
3300 第3貫通孔
331 第1ステッピングモータ
332a 第1の発光素子
332b 第2の発光素子
332c 第3の発光素子
332d 第4の発光素子
4 表側ケース
41 取付部材
42 透過部材
Claims (9)
- 回路基板と、
前記回路基板の表側に配置され、第1の表示部を備える表示板と、
前記第1の表示部を指示する指針と、
前記指針を回動させる回動軸と、を備えた指針式計器であって、
前記回路基板は、前記回動軸に向かう方向に光を出射する第1の光源を備え、
前記指針式計器は、前記回路基板と前記表示板との間に配置され、前記回動軸の周囲の少なくとも一部を囲み、前記第1の光源から出射された前記光を前記表示部の外縁に向かって反射する第1の反射部と、前記回路基板と前記表示板との間に配置され、前記第1の反射部で反射した前記光を反射して前記第1の表示部を裏側から照光する第2の反射部と、をさらに備える、
ことを特徴とする指針式計器。 - 前記第1の光源が出射する前記光のうちの前記第1の反射部で反射する光以外の光の少なくとも一部が、直接前記第2の反射部に到達し、前記第2の反射部で反射し、前記第1の表示部を裏側から照光するように構成された、
ことを特徴とする請求項1に記載の指針式計器。 - 前記第1の反射部は、前記指針式計器を表側から見た場合に、前記第1の光源に向かって隆起し、前記第1の光源が出射する前記光のうちの一部の光を反射し、
前記第2の反射部は、前記指針式計器を表側から見た場合に、前記第1の反射部を囲むように配置される、
ことを特徴とする請求項2に記載の指針式計器。 - 前記表示板は、前記指針式計器を表側から見た場合に、前記第1の反射部よりも前記回動軸側に設けられた第2の表示部を備え、
前記回路基板は、前記指針式計器を表側から見た場合に、前記第1の反射部よりも前記回動軸側に設けられ、前記第2の表示部を直接照光する第2の光源を備える、
ことを特徴とする請求項1乃至3のいずれか1項に記載の指針式計器。 - 前記指針式計器は、前記指針式計器を表側から見た場合に、前記回動軸を基準として前記第1の表示部と反対側に位置する第3の表示部をさらに備え、
前記回路基板は、前記指針式計器を表側から見た場合に、前記回動軸を基準として前記第1の光源と反対側の位置に設けられ、前記回動軸に向かう方向に光を出射する第3の光源を備え、
前記指針式計器は、前記第3の光源から出射された前記光を反射する第3の反射部と、前記第3の反射部で反射した前記光を反射して前記第3の表示部を裏側から照光する第4の反射部を、さらに備える、
ことを特徴とする請求項1乃至4のいずれか1項に記載の指針式計器。 - 前記回路基板と前記表示板との間で、前記第1の表示部に対応した第1の略閉空間と、前記第3の表示部に対応した第2の略閉空間と、を形成するとともに、前記第1の略閉空間と前記第2の略閉空間とを連通し、前記第1の光源又は前記第3の光源が出射した光の一部が通る隙間を形成するように構成された、
ことを特徴とする請求項1乃至5のいずれか1項に記載の指針式計器。 - 裏側ケースを構成する第1の部材と、
前記第1の部材の表側に配置され、表示部を有する第2の部材と、
前記第2の部材を覆い、前記表示部を視認可能とする透明部材を有する表側ケースである第3の部材と、を備える指針式計器であって、
前記第1の部材は、前記第1の部材の底面から表側方向に延設され、前記第2の部材を貫き前記第3の部材に到達することで、前記第1の部材に対して前記第2の部材及び前記第3の部材を位置決めする、棒状の位置決め部材を一以上有する、
ことを特徴とする指針式計器。 - 裏側ケースを構成する第1の部材と、
前記第1の部材の表側に配置され、表示部を有する第2の部材と、
前記第2の部材を覆い、前記表示部を視認可能とする透明部材を有する表側ケースである第3の部材と、を備える指針式計器であって、
前記第3の部材は、前記第3の部材の底面から裏側方向に延設され、前記第2の部材を貫き前記第1の部材に到達することで、前記第3の部材に対して前記第2の部材及び前記第1の部材を位置決めする、棒状の位置決め部材を一以上有する、
ことを特徴とする指針式計器。 - 前記第2の部材は、前記表示部を複数有し、
前記指針式計器を表側から見た場合に、前記一以上の位置決め部材のうちの少なくとも一つは、前記複数の表示部のうちの二つの表示部をそれぞれ指示する二つの指針の回動軸間に配置されている、
ことを特徴とする請求項7又は8に記載の指針式計器。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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EP11774824.4A EP2565592B1 (en) | 2010-04-28 | 2011-04-15 | Pointer-type meter |
US13/640,464 US8662689B2 (en) | 2010-04-28 | 2011-04-15 | Pointer-type meter |
CN201180021327.1A CN102869957B (zh) | 2010-04-28 | 2011-04-15 | 指针式仪表 |
KR1020127028190A KR20130081649A (ko) | 2010-04-28 | 2011-04-15 | 지침식 계기 |
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JP2010-104387 | 2010-04-28 | ||
JP2010104387A JP5434780B2 (ja) | 2010-04-28 | 2010-04-28 | 指針式計器 |
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WO2011136040A1 true WO2011136040A1 (ja) | 2011-11-03 |
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PCT/JP2011/059346 WO2011136040A1 (ja) | 2010-04-28 | 2011-04-15 | 指針式計器 |
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US (1) | US8662689B2 (ja) |
EP (1) | EP2565592B1 (ja) |
JP (1) | JP5434780B2 (ja) |
KR (1) | KR20130081649A (ja) |
CN (1) | CN102869957B (ja) |
WO (1) | WO2011136040A1 (ja) |
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JP6927202B2 (ja) * | 2016-04-25 | 2021-08-25 | 日本精機株式会社 | 計器 |
JP6357507B2 (ja) * | 2016-07-04 | 2018-07-11 | 日本精機株式会社 | 車両用表示装置 |
CN110214276B (zh) * | 2017-01-20 | 2021-12-10 | 日本精机株式会社 | 涡电流式仪表 |
EP3660464A4 (en) * | 2017-07-27 | 2021-03-31 | Nippon Seiki Co., Ltd. | INSTRUMENT |
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See also references of EP2565592A4 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013167331A3 (de) * | 2012-05-10 | 2014-04-03 | Johnson Controls Gmbh | Befestigungsanordnung eines designbauteils an zumindest einem abdeck- und/oder rahmenelement und verfahren zur herstellung einer befestigungsanordnung |
Also Published As
Publication number | Publication date |
---|---|
EP2565592B1 (en) | 2018-08-08 |
CN102869957A (zh) | 2013-01-09 |
KR20130081649A (ko) | 2013-07-17 |
JP5434780B2 (ja) | 2014-03-05 |
US20130027903A1 (en) | 2013-01-31 |
JP2011232251A (ja) | 2011-11-17 |
US8662689B2 (en) | 2014-03-04 |
EP2565592A4 (en) | 2017-01-11 |
EP2565592A1 (en) | 2013-03-06 |
CN102869957B (zh) | 2016-01-20 |
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