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WO2019188580A1 - Pointer type gauge device - Google Patents

Pointer type gauge device Download PDF

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Publication number
WO2019188580A1
WO2019188580A1 PCT/JP2019/011415 JP2019011415W WO2019188580A1 WO 2019188580 A1 WO2019188580 A1 WO 2019188580A1 JP 2019011415 W JP2019011415 W JP 2019011415W WO 2019188580 A1 WO2019188580 A1 WO 2019188580A1
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WO
WIPO (PCT)
Prior art keywords
pointer
light
shielding wall
light shielding
dial
Prior art date
Application number
PCT/JP2019/011415
Other languages
French (fr)
Japanese (ja)
Inventor
一弘 小湊
Original Assignee
日本精機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本精機株式会社 filed Critical 日本精機株式会社
Priority to JP2020510736A priority Critical patent/JP7245438B2/en
Publication of WO2019188580A1 publication Critical patent/WO2019188580A1/en

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Classifications

    • 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
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/213—Virtual instruments
    • 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
    • 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
    • G01D13/22—Pointers, e.g. settable pointer

Definitions

  • the present invention relates to a pointer-type instrument device mounted on a vehicle such as an automobile.
  • Vehicles such as automobiles are equipped with instrument devices that display information necessary for operation, such as speedometers and engine speed meters.
  • the instrument device has, for example, a dial plate provided with a design such as a scale or a number, and a pointer indicating the design.
  • a pointer illuminated by a light source is known.
  • Patent Literature 1 discloses a pointer-type instrument device that reduces light leaking to a display plate of a pointer.
  • the instrument device of Patent Document 1 has an enclosing wall that surrounds the drive shaft of the pointer and has a tip projecting from the dial, and a light shielding portion that overlaps the enclosing wall and the dial on the front side. For this reason, the distance between the dial and the pointer is increased by the overlapping height, and the sense of unity between the pointer and the dial is impaired.
  • the present invention has been made in consideration of such circumstances, and an object thereof is to provide a pointer-type instrument device capable of improving the appearance.
  • a pointer-type instrument device includes a dial having an index, a circuit board provided on the back side of the dial, and provided on the circuit board.
  • a pointer driving unit having a pointer shaft extending vertically to the front side, a light source provided around the pointer driving unit and illuminating the front side of the circuit board, and connected to the pointer shaft and rotated to rotate the indicator
  • the side light-shielding wall is provided outside the light source, and has an inner light-shielding wall having a first diameter around the pointer shaft and an outer side having a second diameter larger than the first diameter around the pointer shaft
  • a light shielding wall, the inner light shielding wall and the outer A horizontal wall connecting the light shielding wall, and the pointer has a third diameter smaller than the second diameter, and has a distal end in a space on the back side of the dial formed by the outer light shielding wall.
  • a pointer side light shielding wall having
  • the appearance can be improved.
  • Embodiments of a pointer-type instrument device according to the present invention will be described with reference to the accompanying drawings.
  • the pointer-type instrument device according to the present invention is mounted on a vehicle such as an automobile or a motorcycle, a ship, an agricultural machine, or a construction machine.
  • the pointer-type instrument device according to the present invention will be described using an example in which the pointer-type instrument device is mounted in an instrument panel of an automobile.
  • the pointer-type instrument device according to the present invention is mounted on a vehicle such as an automobile or a motorcycle, a ship, an agricultural machine, or a construction machine.
  • FIG. 1 is a front view showing an instrument device 1 which is an embodiment of a pointer-type instrument device according to the present invention.
  • FIG. 2 is a sectional view taken along line II-II in FIG.
  • front (front) side means the front side in FIG. 1 and the upper side (dial plate 12 side) in FIG. 2 and the side visually recognized by the viewer (driver).
  • Back (rear) side means the back side in FIG. 1 and the lower side in FIG. 2 (outer case 42 side).
  • the instrument device 1 has a speedometer 2 and an engine speed meter 3.
  • the speedometer 2 is a pointer-type (mechanical) meter that displays the speed of the vehicle.
  • the engine speed meter 3 is a pointer-type meter that displays the engine speed of the vehicle.
  • the instrument device 1 mainly includes a pointer 11, a dial plate 12, a facing plate 14, a circuit board 15, a light guide 16, and a middle case 43.
  • the pointer 11 is connected to the tip of the pointer shaft 30a of the pointer driving unit 30 provided on the circuit board 15, and rotates on the surface parallel to the dial 12 on the dial front surface 12b side.
  • the pointer 11 rotates and points the design 21 (indicator) such as scales and numbers formed on the dial 12 corresponding to the speed and the engine speed according to the speed of the vehicle and the engine speed.
  • the pointer 11 is illuminated with light from the light source 31. Details of the pointer 11 will be described later.
  • the dial 12 is a thin plate-like member provided on the front side of the light source 31 and the back side of the pointer 11.
  • the dial 12 has a base material and a light shielding layer.
  • the base material of the dial 12 is, for example, a transparent polycarbonate resin, which is a plate-like member having transparency (translucency).
  • the light shielding layer is a printing layer printed with black light shielding ink formed on the front side (or back side) of the substrate.
  • the light shielding layer has a blank portion corresponding to the shape of the design 21 (index).
  • the design 21 is a scale or number indicated by letters, symbols, and pointers 11.
  • the dial 12 transmits the light of a light source (not shown) for the design 21 to light up the design 21.
  • the facing plate 14 covers the front surface of the dial 12 and shields unnecessary areas on the dial 12.
  • the facing plate 14 has an opening window 14 a that defines (exposes) display areas of the speedometer 2 and the engine speed meter 3.
  • the facing plate 14 has a cover (not shown) made of, for example, translucent polycarbonate resin or inorganic glass fitted on the front side, and an outer case 42 made of, for example, black synthetic resin, etc. on the back side.
  • the casing of the instrument device 1 is formed.
  • the circuit board 15 is provided on the dial back 12a side.
  • the circuit board 15 mainly includes a pointer driving unit 30, a light source 31, and a control unit including a driver of the light source 31 and the pointer driving unit 30.
  • the control unit includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and executes predetermined arithmetic processing according to a program written in the ROM, for example.
  • the control unit acquires various types of vehicle information from an ECU (Electronic Control Unit) of the vehicle. Based on the acquired information, the control unit turns on the light source 31 and drives the pointer driving unit 30.
  • ECU Electronic Control Unit
  • the pointer drive unit 30 rotates the pointer shaft 30a according to the input vehicle traveling speed and engine speed.
  • the pointer shaft 30a extends vertically from the circuit board 15 to the front side.
  • the light source 31 is provided on the front surface of the circuit board 15 and illuminates the front surface side.
  • the light source 31 is, for example, a top view type (upside light emission type) LED (Light Emitting Diode).
  • the required number of light sources 31 is provided around the pointer drive unit 30 (pointer shaft 30a).
  • the light source for the design 21 is provided according to the number, position, and the like of the design 21 of the instrument device 1.
  • the light guide 16 is made of a transparent resin such as polymethyl methacrylate resin (PMMA).
  • PMMA polymethyl methacrylate resin
  • the middle case 43 is made of a synthetic resin such as white, and fixes or supports the dial plate 12, the circuit board 15, and the light guide 16. As illustrated in FIG. 2, the middle case 43 includes a case-side light shielding wall 50 that surrounds the light source 31 and guides light to the pointer 11.
  • the case-side light shielding wall 50 forms a cylindrical space with a wall that divides the illumination (light emission) region of the light source 31, and light passes through this cylindrical space.
  • One end of the case-side light shielding wall 50 (the end surface facing the circuit board 15 of the case-side light-shielding wall 50) is in contact with the circuit board 15, and the other end (the end surface facing the dial 12 of the case-side light-shielding wall 50) is a character. It is in contact with the plate back surface 12a.
  • the case side light shielding wall 50 has an inner light shielding wall 51, an outer light shielding wall 52, and a horizontal wall 53.
  • the inner light shielding wall 51 is provided outside the light source 31 and has a first diameter (inner diameter) with the pointer shaft 30a as the center.
  • the outer light shielding wall 52 has a second diameter (inner diameter) larger than the first diameter with the pointer shaft 30a as the center. Note that the first diameter and the second diameter may change in the front-rear direction, and may increase, for example, toward the front side.
  • the horizontal wall 53 connects the inner light shielding wall 51 and the outer light shielding wall 52 in the horizontal direction. As a result, the inner light shielding wall 51, the outer light shielding wall 52, and the horizontal wall 53 form a cylindrical case side light shielding wall 50 that is continuous in a staircase pattern. Further, the horizontal wall 53 has a projecting wall 54 extending inward (in the direction of the pointer shaft 30a) from the pointer side light shielding wall 71.
  • the pointer 11 has a light emitting unit 61, a pointer seat 62, a weight 63, and a cap 64.
  • the light emitting unit 61 is a transparent polycarbonate resin, for example, and is a pointer-shaped member having transparency (translucency).
  • the light emitting unit 61 receives light from the light source 31 from the light receiving unit 61a and reflects the light toward the tip 61c side by the reflection surface 61b.
  • the pointer seat 62 is made of, for example, black polycarbonate resin, and includes a base portion 68, a seat surface 69, a shaft coupling portion 70, and a pointer side light shielding wall 71.
  • the base 68 is a thin circular plate located at the center of rotation of the pointer 11.
  • the base 68 is fixed by exposing the light receiving portion 61a of the light emitting portion 61 to the light source 31 side.
  • the seating surface 69 is a surface that receives the back surface of the light emitting unit 61 and fixes the light emitting unit 61.
  • the seat surface 69 has a seat surface side light shielding wall 69a (light shielding member) protruding substantially perpendicularly to the seat surface 69 toward the dial front surface 12b (back surface side).
  • the shaft coupling portion 70 is a cylindrical member that protrudes from the base portion 68 in the back direction. The shaft coupling portion 70 couples the pointer 11 and the pointer shaft 30a when the pointer shaft 30a of the pointer driving unit 30 is inserted.
  • the pointer side light shielding wall 71 shields light from the light source 31 from leaking onto the dial 12.
  • the pointer side light shielding wall 71 is a cylindrical member whose one end protruding from the base 68 of the pointer seat 62 in the back direction is closed.
  • the pointer side light shielding wall 71 has a second diameter that is the diameter of the outer light shielding wall 52 and a third diameter (inner diameter) that is smaller than the first diameter that is the diameter of the inner light shielding wall 51.
  • the pointer side light shielding wall 71 has a tip 71 a in a space on the back side of the dial 12 formed by the outer light shielding wall 52.
  • the pointer side light shielding wall 71 is provided so as to penetrate from the base portion 68 located on the front side of the dial 12 to the back side of the dial 12.
  • the tip 71 a faces the protruding wall 54 of the horizontal wall 53.
  • the front-side end 16a which is the exit surface of the light guide 16, is located inside such a pointer-side light shielding wall 71 and faces the light-receiving part 61a of the light-emitting part 61 exposed from the base 68 to the back side. ing.
  • the weight 63 is, for example, a polyamide composite material having a required weight, and is provided on the base portion 68 of the pointer seat 62.
  • the weight 63 is designed so that the center of gravity of the pointer 11 is close to the rotation center position of the pointer 11.
  • the cap 64 is, for example, black ABS resin, and covers the light emitting unit 61 and the weight 63 by covering the pointer seat 62 from the front side.
  • the cap 64 has a slit 64a and a cap side flange 64b.
  • the slit 64a exposes the light emitting unit 61 in a streak shape.
  • the cap side collar 64b protrudes from the peripheral edge 64c of the cap 64 toward the dial front surface 12b (back side).
  • Such an instrument device 1 can reduce the distance in the front-rear direction between the pointer 11 and the dial 12, and at the same time, does not leak the light from the light source 31 to the dial front surface 12 b side, and emits light from the light emitting portion 61 of the pointer 11. Can lead to. That is, the pointer 11 can be brought closer to the dial 12 by accommodating the pointer-side light-shielding wall 71 in the cylindrical space 80 formed by the case-side light-shielding wall 50.
  • the instrument device 1 forms the inner light-shielding wall 51 and the outer light-shielding wall 52 having different diameters, and has a labyrinth structure (crank structure) of the case-side light-shielding wall 50 and the pointer-side light-shielding wall 71.
  • the light can be reflected and attenuated by the respective light shielding walls 51, 52, 53, 71. That is, it is possible to reduce leakage of light, such as light that has leaked directly to the dial front surface 12b, to the dial front surface 12b.
  • the instrument apparatus 1 has the protrusion wall 54 of the horizontal wall 53, even if the light which passes the inside of the light guide 16 radiate
  • the instrument device 1 has the cap side collar 64b of the cap 64 and the seat surface side light shielding wall 69a of the pointer seat 62, so that even if light leaks to the dial front surface 12b side, the cap side collar 64b and the seat Light can be further shielded by the surface side light shielding wall 69a. Further, the cap side collar 64b and the seating surface side light shielding wall 69a can shield the space 80 from being viewed from the opening of the dial 12.
  • the instrument device 1 can have a sense of unity between the pointer 11 and the dial 12 and can improve the appearance of the instrument device 1.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Measuring Devices (AREA)
  • Instrument Panels (AREA)

Abstract

The objective of the present invention is to provide a pointer type gauge device with which external appearance can be improved. This pointer type gauge device is provided with a dial plate 12 having an index, a pointer drive unit 30 having a pointer spindle 30a extending vertically from a base plate 15 toward a front surface side, a light source 31 for illuminating the front surface side of the base plate 15, a pointer 11 which is connected to the pointer spindle 30a, rotates to point to the index, and is illuminated by the light of the light source 31, and a middle case 43 which supports the base plate 15 and the dial plate 12, and which has a case-side light shielding wall 50 surrounding the light source 31 to guide the light to the pointer 11. The case-side light shielding wall 50 includes an inside light shielding wall 51 which is provided to the outside of the light source 31 and has a first diameter centered around the pointer spindle 30a, an outside light shielding wall 52 having a second diameter larger than the first diameter and centered around the pointer spindle, and a horizontal wall 53 joining the inside light shielding wall 51 and the outside light shielding wall 52. The pointer 11 has a pointer-side light shielding wall 71 which has a third diameter smaller than the second diameter, and which has a tip end 71a in a space 80 formed by the outside light shielding wall 52 on a rear surface side of the dial plate 12.

Description

指針式計器装置Pointer-type instrument device
　本発明は、自動車等の車両に搭載される指針式計器装置に関する。 The present invention relates to a pointer-type instrument device mounted on a vehicle such as an automobile.
　自動車等の車両には、速度計、エンジン回転数計等の運転に必要な情報を表示する計器装置が搭載されている。計器装置は、例えば、目盛や数字等の意匠が施された文字板、及び意匠を指し示す指針を有している。指針の視認性や外観を高めるため、光源により照明される指針が知られている。例えば、特許文献１には、指針の表示板への漏れ光を低減する指針式計器装置が開示されている。 Vehicles such as automobiles are equipped with instrument devices that display information necessary for operation, such as speedometers and engine speed meters. The instrument device has, for example, a dial plate provided with a design such as a scale or a number, and a pointer indicating the design. In order to improve the visibility and appearance of the pointer, a pointer illuminated by a light source is known. For example, Patent Literature 1 discloses a pointer-type instrument device that reduces light leaking to a display plate of a pointer.
特開２０１７－２０７４１９号公報JP 2017-207419 A
　特許文献１の計器装置は、指針の駆動軸を囲み、先端が文字板から突出した囲い壁と、この囲い壁と文字板より前面側で重なり合う遮光部を有している。このため、文字板と指針との距離が、重なり合う高さの分だけ遠くなり、指針と文字板との一体感を損ねていた。 The instrument device of Patent Document 1 has an enclosing wall that surrounds the drive shaft of the pointer and has a tip projecting from the dial, and a light shielding portion that overlaps the enclosing wall and the dial on the front side. For this reason, the distance between the dial and the pointer is increased by the overlapping height, and the sense of unity between the pointer and the dial is impaired.
　本発明はこのような事情を考慮してなされたもので、外観を向上させることができる指針式計器装置を提供することを目的とする。 The present invention has been made in consideration of such circumstances, and an object thereof is to provide a pointer-type instrument device capable of improving the appearance.
　本発明に係る指針式計器装置は、上述した課題を解決するために、指標を有する文字板と、前記文字板の背面側に設けられる回路基板と、前記回路基板に設けられ、前記回路基板から垂直に前面側に伸びた指針軸を有する指針駆動部と、前記指針駆動部の周りに設けられ、前記回路基板の前面側を照明する光源と、前記指針軸に接続されて回転して前記指標を指し示し、前記光源の光で照明される指針と、前記回路基板及び前記文字板を支持し、前記光源を囲い前記光を前記指針に導くケース側遮光壁を有するケースと、を備え、前記ケース側遮光壁は、前記光源よりも外側に設けられ、前記指針軸を中心に第１の径を有する内側遮光壁と、前記指針軸を中心に第１の径より大きい第２の径を有する外側遮光壁と、前記内側遮光壁と前記外側遮光壁とをつなぐ水平壁と、を有し、前記指針は、前記第２の径より小さい第３の径を有し、前記外側遮光壁により形成される前記文字板の背面側の空間に先端を有する指針側遮光壁を有する。 In order to solve the above-described problem, a pointer-type instrument device according to the present invention includes a dial having an index, a circuit board provided on the back side of the dial, and provided on the circuit board. A pointer driving unit having a pointer shaft extending vertically to the front side, a light source provided around the pointer driving unit and illuminating the front side of the circuit board, and connected to the pointer shaft and rotated to rotate the indicator And a case that includes a case-side light shielding wall that supports the circuit board and the dial, surrounds the light source, and guides the light to the pointer. The side light-shielding wall is provided outside the light source, and has an inner light-shielding wall having a first diameter around the pointer shaft and an outer side having a second diameter larger than the first diameter around the pointer shaft A light shielding wall, the inner light shielding wall and the outer A horizontal wall connecting the light shielding wall, and the pointer has a third diameter smaller than the second diameter, and has a distal end in a space on the back side of the dial formed by the outer light shielding wall. A pointer side light shielding wall having
　本発明に係る指針式計器装置においては、外観を向上させることができる。 In the pointer-type instrument device according to the present invention, the appearance can be improved.
本発明に係る指針式計器装置の実施形態を示す正面図。The front view which shows embodiment of the pointer type instrument apparatus which concerns on this invention. 図１のII－II線に沿う断面図。Sectional drawing which follows the II-II line | wire of FIG.
　本発明に係る指針式計器装置の実施形態を添付図面に基づいて説明する。本発明に係る指針式計器装置は、例えば自動車や二輪車等の車両や、船舶、農業機械、建設機械に搭載される。本実施形態においては、本発明に係る指針式計器装置が、自動車のインストルメントパネル内に搭載された指針式計器装置である例を用いて説明する。 Embodiments of a pointer-type instrument device according to the present invention will be described with reference to the accompanying drawings. The pointer-type instrument device according to the present invention is mounted on a vehicle such as an automobile or a motorcycle, a ship, an agricultural machine, or a construction machine. In this embodiment, the pointer-type instrument device according to the present invention will be described using an example in which the pointer-type instrument device is mounted in an instrument panel of an automobile.
　本発明に係る指針式計器装置の実施形態を添付図面に基づいて説明する。本発明に係る指針式計器装置は、例えば自動車や二輪車等の車両や、船舶、農業機械、建設機械に搭載される。 Embodiments of a pointer-type instrument device according to the present invention will be described with reference to the accompanying drawings. The pointer-type instrument device according to the present invention is mounted on a vehicle such as an automobile or a motorcycle, a ship, an agricultural machine, or a construction machine.
　図１は、本発明に係る指針式計器装置の実施形態である計器装置１を示す正面図である。 FIG. 1 is a front view showing an instrument device 1 which is an embodiment of a pointer-type instrument device according to the present invention.
　図２は、図１のII－II線に沿う断面図である。 FIG. 2 is a sectional view taken along line II-II in FIG.
　以下の説明において、「前面（前）側」は、図１における手前側、図２における上側（文字板１２側）であり視認者（運転者）に視認される側を意味する。「背面（後）側」は、図１における奥側、図２における下側（外ケース４２側）を意味する。 In the following description, the “front (front) side” means the front side in FIG. 1 and the upper side (dial plate 12 side) in FIG. 2 and the side visually recognized by the viewer (driver). “Back (rear) side” means the back side in FIG. 1 and the lower side in FIG. 2 (outer case 42 side).
　計器装置１は、速度計２と、エンジン回転数計３と、を有している。速度計２は、車両の速度を表示する指針式（機械式）計器である。エンジン回転数計３は、車両のエンジン回転数を表示する指針式計器である。 The instrument device 1 has a speedometer 2 and an engine speed meter 3. The speedometer 2 is a pointer-type (mechanical) meter that displays the speed of the vehicle. The engine speed meter 3 is a pointer-type meter that displays the engine speed of the vehicle.
　計器装置１は、指針１１と、文字板１２と、見返し板１４と、回路基板１５と、導光体１６と、中ケース４３と、を主に有している。 The instrument device 1 mainly includes a pointer 11, a dial plate 12, a facing plate 14, a circuit board 15, a light guide 16, and a middle case 43.
　指針１１は、回路基板１５に設けられた指針駆動部３０の指針軸３０ａの先端に接続されており、文字板前面１２ｂ側で、文字板１２に平行する面上を回転する。指針１１は、車両の速度やエンジン回転数に応じて、速度やエンジン回転数に対応する文字板１２に形成された目盛や数字等の意匠２１（指標）を回転して指し示す。また、指針１１は、光源３１の光で照明される。指針１１の詳細は、後述する。 The pointer 11 is connected to the tip of the pointer shaft 30a of the pointer driving unit 30 provided on the circuit board 15, and rotates on the surface parallel to the dial 12 on the dial front surface 12b side. The pointer 11 rotates and points the design 21 (indicator) such as scales and numbers formed on the dial 12 corresponding to the speed and the engine speed according to the speed of the vehicle and the engine speed. The pointer 11 is illuminated with light from the light source 31. Details of the pointer 11 will be described later.
　文字板１２は、光源３１の前面側及び指針１１の背面側に設けられた薄板状の部材である。文字板１２は、基材と、遮光層と、を有している。 The dial 12 is a thin plate-like member provided on the front side of the light source 31 and the back side of the pointer 11. The dial 12 has a base material and a light shielding layer.
　文字板１２の基材は、例えば透明なポリカーボネート樹脂であり、透過性（透光性）を有する板状部材である。 The base material of the dial 12 is, for example, a transparent polycarbonate resin, which is a plate-like member having transparency (translucency).
　遮光層は、基材の前面側（又は背面側）に形成された黒色の遮光性インキで印刷された印刷層である。遮光層は、意匠２１（指標）の形状に対応した抜き文字部分を有している。意匠２１は、文字、記号、及び指針１１により指示される目盛や数字である。文字板１２は、意匠２１用の光源（図示せず）の光を透過することにより、意匠２１を点灯表示する。 The light shielding layer is a printing layer printed with black light shielding ink formed on the front side (or back side) of the substrate. The light shielding layer has a blank portion corresponding to the shape of the design 21 (index). The design 21 is a scale or number indicated by letters, symbols, and pointers 11. The dial 12 transmits the light of a light source (not shown) for the design 21 to light up the design 21.
　見返し板１４は、文字板１２の前面を覆い、文字板１２上の不要な領域を遮蔽する。見返し板１４は、速度計２及びエンジン回転数計３の表示領域を規定（露出）する開口窓１４ａを有している。見返し板１４は、前側に、例えば透光性のポリカーボネート樹脂や無機ガラスからなるカバー（図示せず）が嵌まり、背後側に、例えば黒色の合成樹脂等からなる外ケース４２が嵌まることにより、計器装置１の筐体を形成する。 The facing plate 14 covers the front surface of the dial 12 and shields unnecessary areas on the dial 12. The facing plate 14 has an opening window 14 a that defines (exposes) display areas of the speedometer 2 and the engine speed meter 3. The facing plate 14 has a cover (not shown) made of, for example, translucent polycarbonate resin or inorganic glass fitted on the front side, and an outer case 42 made of, for example, black synthetic resin, etc. on the back side. The casing of the instrument device 1 is formed.
　回路基板１５は、文字板背面１２ａ側に設けられている。回路基板１５は、指針駆動部３０と、光源３１と、光源３１や指針駆動部３０のドライバ等を含む制御部と、を主に有している。 The circuit board 15 is provided on the dial back 12a side. The circuit board 15 mainly includes a pointer driving unit 30, a light source 31, and a control unit including a driver of the light source 31 and the pointer driving unit 30.
　制御部は、ＣＰＵ（Central Processing Unit）、ＲＯＭ（Read Only Memory）、ＲＡＭ（Random Access Memory）等を有しており、例えば、ＲＯＭに書き込まれたプログラムに従って所定の演算処理を実行する。制御部は、例えば、車両のＥＣＵ（Electronic Control Unit）から各種車両情報を取得する。制御部は、取得した情報に基づき、光源３１を点灯させ、また、指針駆動部３０を駆動する。 The control unit includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and executes predetermined arithmetic processing according to a program written in the ROM, for example. For example, the control unit acquires various types of vehicle information from an ECU (Electronic Control Unit) of the vehicle. Based on the acquired information, the control unit turns on the light source 31 and drives the pointer driving unit 30.
　指針駆動部３０は、入力された車両の走行速度やエンジン回転数に応じて指針軸３０ａを回転する。指針軸３０ａは、回路基板１５から垂直に前面側に伸びている。 The pointer drive unit 30 rotates the pointer shaft 30a according to the input vehicle traveling speed and engine speed. The pointer shaft 30a extends vertically from the circuit board 15 to the front side.
　光源３１は、回路基板１５の前面に設けられ、前面側を照明する。光源３１は、例えばトップビュー型（上面発光型）のＬＥＤ（Light Emitting Diode）である。光源３１は、指針駆動部３０（指針軸３０ａ）周りに所要数設けられている。また、意匠２１用の光源は、計器装置１の意匠２１の数及び位置等に応じて設けられている。 The light source 31 is provided on the front surface of the circuit board 15 and illuminates the front surface side. The light source 31 is, for example, a top view type (upside light emission type) LED (Light Emitting Diode). The required number of light sources 31 is provided around the pointer drive unit 30 (pointer shaft 30a). Moreover, the light source for the design 21 is provided according to the number, position, and the like of the design 21 of the instrument device 1.
　導光体１６は、ポリメタクリル酸メチル樹脂（Polymethyl methacrylate、ＰＭＭＡ）等の透明樹脂からなる。導光体１６は、指針軸３０ａの外周であり、指針側遮光壁７１（後述）より内側に設けられ、光源３１から指針１１に光を導く。 The light guide 16 is made of a transparent resin such as polymethyl methacrylate resin (PMMA). The light guide 16 is the outer periphery of the pointer shaft 30 a and is provided inside the pointer-side light shielding wall 71 (described later), and guides light from the light source 31 to the pointer 11.
　中ケース４３は白色等の合成樹脂からなり、文字板１２、回路基板１５、及び導光体１６を固定したり、支持したりする。
　中ケース４３は、図２に示すように、光源３１を囲い、光を指針１１に導くケース側遮光壁５０を有している。ケース側遮光壁５０は、光源３１の照明（発光）領域を区切る壁で筒状の空間を形成しており、光はこの筒状の空間を通る。ケース側遮光壁５０の一端（ケース側遮光壁５０の回路基板１５と対向する端面）は回路基板１５に接しており、他端（ケース側遮光壁５０の文字板１２と対向する端面）は文字板背面１２ａに接している。 The middle case 43 is made of a synthetic resin such as white, and fixes or supports the dial plate 12, the circuit board 15, and the light guide 16.
As illustrated in FIG. 2, the middle case 43 includes a case-side light shielding wall 50 that surrounds the light source 31 and guides light to the pointer 11. The case-side light shielding wall 50 forms a cylindrical space with a wall that divides the illumination (light emission) region of the light source 31, and light passes through this cylindrical space. One end of the case-side light shielding wall 50 (the end surface facing the circuit board 15 of the case-side light-shielding wall 50) is in contact with the circuit board 15, and the other end (the end surface facing the dial 12 of the case-side light-shielding wall 50) is a character. It is in contact with the plate back surface 12a.
　ケース側遮光壁５０は、内側遮光壁５１と、外側遮光壁５２と、水平壁５３と、を有している。 The case side light shielding wall 50 has an inner light shielding wall 51, an outer light shielding wall 52, and a horizontal wall 53.
　内側遮光壁５１は、光源３１よりも外側に設けられており、指針軸３０ａを中心に第１の径（内径）を有している。外側遮光壁５２は、指針軸３０ａを中心に第１の径より大きい第２の径（内径）を有している。なお、第１の径及び第２の径は、前後方向において変化してもよく、例えば前面側に向って大きくなっていてもよい。水平壁５３は、内側遮光壁５１と外側遮光壁５２とを水平方向につなぐ。これにより、内側遮光壁５１、外側遮光壁５２及び水平壁５３は、階段状に連続した筒状のケース側遮光壁５０を形成している。また、水平壁５３は、指針側遮光壁７１よりも内側（指針軸３０ａ方向）に伸びた突出壁５４を有している。 The inner light shielding wall 51 is provided outside the light source 31 and has a first diameter (inner diameter) with the pointer shaft 30a as the center. The outer light shielding wall 52 has a second diameter (inner diameter) larger than the first diameter with the pointer shaft 30a as the center. Note that the first diameter and the second diameter may change in the front-rear direction, and may increase, for example, toward the front side. The horizontal wall 53 connects the inner light shielding wall 51 and the outer light shielding wall 52 in the horizontal direction. As a result, the inner light shielding wall 51, the outer light shielding wall 52, and the horizontal wall 53 form a cylindrical case side light shielding wall 50 that is continuous in a staircase pattern. Further, the horizontal wall 53 has a projecting wall 54 extending inward (in the direction of the pointer shaft 30a) from the pointer side light shielding wall 71.
　次に、指針１１の詳細について説明する。 Next, the details of the guide 11 will be described.
　指針１１は、発光部６１と、指針座６２と、おもり６３と、キャップ６４と、を有している。 The pointer 11 has a light emitting unit 61, a pointer seat 62, a weight 63, and a cap 64.
　発光部６１は、例えば透明なポリカーボネート樹脂であり、透過性（透光性）を有する指針形状の部材である。発光部６１は、光源３１の光を受光部６１ａから受光し、反射面６１ｂで先端６１ｃ側へ反射している。 The light emitting unit 61 is a transparent polycarbonate resin, for example, and is a pointer-shaped member having transparency (translucency). The light emitting unit 61 receives light from the light source 31 from the light receiving unit 61a and reflects the light toward the tip 61c side by the reflection surface 61b.
　指針座６２は、例えば黒色のポリカーボネート樹脂であり、基部６８と、座面６９と、軸結合部７０と、指針側遮光壁７１と、を有している。基部６８は、指針１１の回転中心に位置する円形上の薄板である。基部６８は、発光部６１の受光部６１ａを光源３１側に露出させて固定している。座面６９は、発光部６１の背面を受けて発光部６１を固定する面である。座面６９は、文字板前面１２ｂ（背面側）に向って座面６９に対して略垂直に突出する座面側遮光壁６９ａ（遮光部材）を有している。軸結合部７０は、基部６８から背面方向に突出した筒状部材である。軸結合部７０は、指針駆動部３０の指針軸３０ａが挿入されることにより、指針１１と指針軸３０ａとを結合する。 The pointer seat 62 is made of, for example, black polycarbonate resin, and includes a base portion 68, a seat surface 69, a shaft coupling portion 70, and a pointer side light shielding wall 71. The base 68 is a thin circular plate located at the center of rotation of the pointer 11. The base 68 is fixed by exposing the light receiving portion 61a of the light emitting portion 61 to the light source 31 side. The seating surface 69 is a surface that receives the back surface of the light emitting unit 61 and fixes the light emitting unit 61. The seat surface 69 has a seat surface side light shielding wall 69a (light shielding member) protruding substantially perpendicularly to the seat surface 69 toward the dial front surface 12b (back surface side). The shaft coupling portion 70 is a cylindrical member that protrudes from the base portion 68 in the back direction. The shaft coupling portion 70 couples the pointer 11 and the pointer shaft 30a when the pointer shaft 30a of the pointer driving unit 30 is inserted.
　指針側遮光壁７１は、光源３１の光が文字板１２上に漏れないよう遮光する。指針側遮光壁７１は、指針座６２の基部６８から背面方向に突出した一端が閉じた筒状部材である。指針側遮光壁７１は、外側遮光壁５２の径である第２の径、及び内側遮光壁５１の径である第１の径より小さい、第３の径（内径）を有している。指針側遮光壁７１は、外側遮光壁５２により形成される文字板１２の背面側の空間に先端７１ａを有している。すなわち、指針側遮光壁７１は、文字板１２より前面側に位置する基部６８から、文字板１２の背面側に貫通して設けられている。先端７１ａは、水平壁５３の突出壁５４と対向している。導光体１６の出射面である前面側端部１６ａは、このような指針側遮光壁７１の内側に位置しており、基部６８から背面側に露出した発光部６１の受光部６１ａと対向している。 The pointer side light shielding wall 71 shields light from the light source 31 from leaking onto the dial 12. The pointer side light shielding wall 71 is a cylindrical member whose one end protruding from the base 68 of the pointer seat 62 in the back direction is closed. The pointer side light shielding wall 71 has a second diameter that is the diameter of the outer light shielding wall 52 and a third diameter (inner diameter) that is smaller than the first diameter that is the diameter of the inner light shielding wall 51. The pointer side light shielding wall 71 has a tip 71 a in a space on the back side of the dial 12 formed by the outer light shielding wall 52. That is, the pointer side light shielding wall 71 is provided so as to penetrate from the base portion 68 located on the front side of the dial 12 to the back side of the dial 12. The tip 71 a faces the protruding wall 54 of the horizontal wall 53. The front-side end 16a, which is the exit surface of the light guide 16, is located inside such a pointer-side light shielding wall 71 and faces the light-receiving part 61a of the light-emitting part 61 exposed from the base 68 to the back side. ing.
　おもり６３は、所要の重量を有する例えばポリアミド複合材料であり、指針座６２の基部６８に設けられている。おもり６３は、指針１１の重心位置が指針１１の回転中心位置に近くなるように設計されている。 The weight 63 is, for example, a polyamide composite material having a required weight, and is provided on the base portion 68 of the pointer seat 62. The weight 63 is designed so that the center of gravity of the pointer 11 is close to the rotation center position of the pointer 11.
　キャップ６４は、例えば黒色のＡＢＳ樹脂であり、指針座６２を前面側から覆うことにより、発光部６１及びおもり６３を覆う。キャップ６４は、スリット６４ａと、キャップ側鍔６４ｂと、を有している。スリット６４ａは、発光部６１を筋状に露出する。キャップ側鍔６４ｂ（遮光部材）は、キャップ６４の周縁６４ｃから文字板前面１２ｂ（背面側）に向って突出している。 The cap 64 is, for example, black ABS resin, and covers the light emitting unit 61 and the weight 63 by covering the pointer seat 62 from the front side. The cap 64 has a slit 64a and a cap side flange 64b. The slit 64a exposes the light emitting unit 61 in a streak shape. The cap side collar 64b (light shielding member) protrudes from the peripheral edge 64c of the cap 64 toward the dial front surface 12b (back side).
　このような計器装置１は、指針１１と文字板１２との前後方向の距離を小さくすることができると同時に、光源３１の光を文字板前面１２ｂ側に漏らすことなく、指針１１の発光部６１に導くことができる。すなわち、ケース側遮光壁５０で形成される筒状の空間８０に、指針側遮光壁７１を収容することにより、指針１１を文字板１２に近づけることができる。 Such an instrument device 1 can reduce the distance in the front-rear direction between the pointer 11 and the dial 12, and at the same time, does not leak the light from the light source 31 to the dial front surface 12 b side, and emits light from the light emitting portion 61 of the pointer 11. Can lead to. That is, the pointer 11 can be brought closer to the dial 12 by accommodating the pointer-side light-shielding wall 71 in the cylindrical space 80 formed by the case-side light-shielding wall 50.
　また、指針１１を文字板１２に近づけたことに伴い、空間８０が大きくなり、光源３１の光が文字板前面１２ｂに漏れ出る虞がある。しかし、計器装置１は、径の異なる内側遮光壁５１及び外側遮光壁５２を形成し、ケース側遮光壁５０と指針側遮光壁７１とのラビリンス構造（クランク構造）を有することにより、光源３１の光を各遮光壁５１、５２、５３、７１で反射させて減衰させることができる。すなわち、直接文字板前面１２ｂ側に漏れ出た光のような、視認者に認識可能な程度の光を、文字板前面１２ｂに漏らすことを低減できる。 Also, as the pointer 11 is brought closer to the dial 12, the space 80 becomes larger, and the light from the light source 31 may leak to the dial front surface 12b. However, the instrument device 1 forms the inner light-shielding wall 51 and the outer light-shielding wall 52 having different diameters, and has a labyrinth structure (crank structure) of the case-side light-shielding wall 50 and the pointer-side light-shielding wall 71. The light can be reflected and attenuated by the respective light shielding walls 51, 52, 53, 71. That is, it is possible to reduce leakage of light, such as light that has leaked directly to the dial front surface 12b, to the dial front surface 12b.
　また、計器装置１は、水平壁５３の突出壁５４を有することにより、仮に導光体１６内部を通る光が水平壁５３より背面側の導光体側面１６ｂから出射した場合であっても、突出壁背面５４ａで反射させ、文字板前面１２ｂ側へ漏れ出ることを防止することができる。 Moreover, even if the instrument apparatus 1 has the protrusion wall 54 of the horizontal wall 53, even if the light which passes the inside of the light guide 16 radiate | emits from the light guide side surface 16b of the back side from the horizontal wall 53, It can be reflected by the protruding wall back surface 54a and prevented from leaking to the dial front surface 12b side.
　さらに、計器装置１は、キャップ６４のキャップ側鍔６４ｂ、指針座６２の座面側遮光壁６９ａを有することにより、仮に文字板前面１２ｂ側に光が漏れたとしても、キャップ側鍔６４ｂ及び座面側遮光壁６９ａでさらに遮光することができる。また、キャップ側鍔６４ｂ及び座面側遮光壁６９ａは、文字板１２の開口から空間８０が視認されないよう、遮蔽することもできる。 Further, the instrument device 1 has the cap side collar 64b of the cap 64 and the seat surface side light shielding wall 69a of the pointer seat 62, so that even if light leaks to the dial front surface 12b side, the cap side collar 64b and the seat Light can be further shielded by the surface side light shielding wall 69a. Further, the cap side collar 64b and the seating surface side light shielding wall 69a can shield the space 80 from being viewed from the opening of the dial 12.
　よって、計器装置１は、指針１１と文字板１２との一体感を有することができ、計器装置１の外観を向上させることができる。 Therefore, the instrument device 1 can have a sense of unity between the pointer 11 and the dial 12 and can improve the appearance of the instrument device 1.
　本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。 Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.
１　計器装置
２　速度計
３　エンジン回転数計
１１　指針
１２　文字板
１２ａ　文字板背面
１２ｂ　文字板前面
１４　見返し板
１４ａ　開口窓
１５　回路基板
１６　導光体
１６ａ　前面側端部
１６ｂ　導光体側面
２１　意匠
３０　指針駆動部
３０ａ　指針軸
３１　光源
４２　外ケース
４３　中ケース（ケース）
５０　ケース側遮光壁
５１　内側遮光壁
５２　外側遮光壁
５３　水平壁
５４　突出壁
５４ａ　突出壁背面
６１　発光部
６１ａ　受光部
６１ｂ　反射面
６１ｃ　先端
６２　指針座
６３　おもり
６４　キャップ
６４ａ　スリット
６４ｂ　キャップ側鍔
６４ｃ　周縁
６８　基部
６９　座面
６９ａ　座面側遮光壁
７０　軸結合部
７１　指針側遮光壁
７１ａ　先端
８０　空間 DESCRIPTION OF SYMBOLS 1 Instrument apparatus 2 Speedometer 3 Engine speed meter 11 Pointer 12 Dial 12a Dial back surface 12b Dial front surface 14 Look-back plate 14a Opening window 15 Circuit board 16 Light guide body 16a Front side edge part 16b Light guide body side surface 21 Design 30 Pointer drive unit 30a Pointer shaft 31 Light source 42 Outer case 43 Middle case (case)
50 Case-side light shielding wall 51 Inner light-shielding wall 52 Outer light-shielding wall 53 Horizontal wall 54 Projection wall 54a Projection wall rear surface 61 Light-emitting part 61a Light-receiving part 61b Reflective surface 61c Tip 62 Pointer seat 63 Weight 64 Cap 64a Slit 64b Cap side collar 64c Perimeter 68 Base 69 Seating surface 69a Seating surface side light shielding wall 70 Axis coupling portion 71 Pointer side light shielding wall 71a Tip 80 Space

Claims (5)

  1. 指標を有する文字板と、
    前記文字板の背面側に設けられる回路基板と、
    前記回路基板に設けられ、前記回路基板から垂直に前面側に伸びた指針軸を有する指針駆動部と、
    前記指針駆動部の周りに設けられ、前記回路基板の前面側を照明する光源と、
    前記指針軸に接続されて回転して前記指標を指し示し、前記光源の光で照明される指針と、
    前記回路基板及び前記文字板を支持し、前記光源を囲い前記光を前記指針に導くケース側遮光壁を有するケースと、を備え、
    前記ケース側遮光壁は、前記光源よりも外側に設けられ、前記指針軸を中心に第１の径を有する内側遮光壁と、前記指針軸を中心に第１の径より大きい第２の径を有する外側遮光壁と、前記内側遮光壁と前記外側遮光壁とをつなぐ水平壁と、を有し、
    前記指針は、前記第２の径より小さい第３の径を有し、前記外側遮光壁により形成される前記文字板の背面側の空間に先端を有する指針側遮光壁を有する、指針式計器装置。     A dial with indicators,
    A circuit board provided on the back side of the dial,
    A pointer driving unit provided on the circuit board and having a pointer shaft extending vertically from the circuit board to the front surface;
    A light source that is provided around the pointer drive unit and that illuminates the front side of the circuit board;
    A pointer that is connected to the pointer shaft and rotates to point to the indicator, and is illuminated by the light of the light source;
    A case having a case-side light-shielding wall that supports the circuit board and the dial, surrounds the light source, and guides the light to the pointer;
    The case-side light shielding wall is provided outside the light source, and has an inner light-shielding wall having a first diameter around the pointer shaft, and a second diameter larger than the first diameter around the pointer shaft. An outer light-shielding wall, and a horizontal wall connecting the inner light-shielding wall and the outer light-shielding wall,
    The pointer has a third diameter smaller than the second diameter, and has a pointer-side light shielding wall having a tip in a space on the back side of the dial plate formed by the outer light-shielding wall. .
  2. 前記第３の径は、前記第１の径より小さい、請求項１記載の指針式計器装置。 The pointer-type instrument device according to claim 1, wherein the third diameter is smaller than the first diameter.
  3. 前記水平壁は、前記指針側遮光壁よりも内側に伸びた突出壁を有する、請求項１記載の指針式計器装置。 The pointer-type instrument device according to claim 1, wherein the horizontal wall has a protruding wall extending inward from the pointer-side light shielding wall.
  4. 前記指針側遮光壁より内側に設けられ、前記光源から前記指針に前記光を導く導光体をさらに備える、請求項１記載の指針式計器装置。 The pointer-type instrument device according to claim 1, further comprising a light guide provided inside the pointer-side light shielding wall and guiding the light from the light source to the pointer.
  5. 前記指針は、前記文字板の前面に向って突出した遮光部材を有する、請求項１から４のいずれか１項記載の指針式計器装置。 The pointer-type instrument device according to any one of claims 1 to 4, wherein the pointer has a light shielding member protruding toward a front surface of the dial.
PCT/JP2019/011415 2018-03-26 2019-03-19 Pointer type gauge device WO2019188580A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3305297B2 (en) * 2000-06-30 2002-07-22 日本精機株式会社 Pointer-type instrument
JP2012002556A (en) * 2010-06-15 2012-01-05 Yazaki Corp Pointer instrument
JP2014009958A (en) * 2012-06-27 2014-01-20 Nippon Seiki Co Ltd Pointer type instrument device
JP2017207419A (en) * 2016-05-20 2017-11-24 日本精機株式会社 Pointer-type instrument device
JP2018017523A (en) * 2016-07-25 2018-02-01 ビステオン グローバル テクノロジーズ インコーポレイテッド Pointer illuminator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3305297B2 (en) * 2000-06-30 2002-07-22 日本精機株式会社 Pointer-type instrument
JP2012002556A (en) * 2010-06-15 2012-01-05 Yazaki Corp Pointer instrument
JP2014009958A (en) * 2012-06-27 2014-01-20 Nippon Seiki Co Ltd Pointer type instrument device
JP2017207419A (en) * 2016-05-20 2017-11-24 日本精機株式会社 Pointer-type instrument device
JP2018017523A (en) * 2016-07-25 2018-02-01 ビステオン グローバル テクノロジーズ インコーポレイテッド Pointer illuminator

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