JP5281982B2 - Guideline, guideline manufacturing method, and instrument device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pointer which can reduce manufacturing cost, and has improved designability, and to provide a method for manufacturing the pointer, and an instrument device including the pointer. <P>SOLUTION: The pointer is used for a combination meter for a vehicle as an instrument device including a dial plate having scales formed thereon, and a movement whose output shaft is rotated corresponding to a measured amount, and is mounted on the output shaft and rotated. The pointer includes a pointer body 11. The pointer body 11 includes a base part 13 constituted of a translucent material, and entered by light from an LED; and an indication part 14 extended from the base part 13, for indicating a scale by being illuminated by light guided from the base part 13. The pointer body 11 is formed by punching a board-like member so that a board thickness direction K1 of the board-like member constituted of the translucent material agrees with a width direction K1 in parallel with the dial plate of the pointer body 11. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a pointer used in an instrument device mounted on a moving body such as an automobile, and in particular, includes a pointer that shines a pointer main body and is visually recognized by an occupant of the moving body, a method for manufacturing the pointer, and the pointer. It relates to an instrument device.

  A moving body such as an automobile or a ship is equipped with an instrument device in order to display information measured by various measuring means to passengers of the moving body. Among such instrument devices, an analog instrument device using a pointer includes a type in which the pointer is shined by light from a light source (for example, see Patent Document 1).

  FIG. 10 shows the inside of a conventional instrument device 101. The instrument device 101 includes a dial 107 having a scale (not shown), a movement 108 as an instrument unit whose output shaft 193 rotates in accordance with the measurement amount of the measurement means described above, an LED 109 as a light source, A pointer 110 that is attached to the output shaft 193 and rotates to indicate the scale on the dial plate 107, a casing (not shown) that houses the movement 108, the LED 109, the wiring board 106, and the like are provided.

  Most of the movement 108 is disposed on the back surface side of the wiring board 106, and the output shaft 193 is disposed on the front surface side of the wiring board 106 through the through hole 106 a of the wiring board 106. The LED 109 is mounted on the surface of the wiring board 106. A plurality of LEDs 109 are provided, arranged along the circumferential direction around the through hole 106a of the wiring board 106, and spaced apart from each other.

  The pointer 110 includes a pointer main body 111, a pointer rod attached to the pointer main body 111, and a pointer cap 130. The pointer main body 111 is made of a light-transmitting synthetic resin such as an acrylic resin or a polycarbonate resin, and is formed by a well-known injection molding. As shown in FIG. 11, the pointer main body 111 includes a base portion 113 having a light receiving surface 113 a and a reflective surface 113 b, and an instruction portion 114 extending from the base portion 113.

  In the instrument device 101 configured as described above, as shown in FIGS. 12 and 13, light from the plurality of LEDs 109 is incident on the light receiving surface 113a provided on the base 113 of the pointer main body 111 and reaches the reflecting surface 113b. To do. Thereafter, the light is reflected toward the instruction unit 114 by the reflecting surface 113b, and makes the instruction unit 114 shine. In this way, when the instruction unit 114 shines, the pointer 110 is visually recognized by the occupant of the moving body, and the state of the moving body is displayed to the occupant.

JP 2005-265835 A

  In the above-described pointer 110, since the pointer main body 111 is molded by injection molding, equipment such as a mold and an injection molding machine is expensive, and the manufacturing cost tends to increase. In addition, if the cavity in the mold is narrowed, the molten resin cannot be reliably filled into the cavity, so that the indicator 114 cannot be formed narrow (narrow), and the design of the pointer 110 is improved. There was a problem that it was difficult.

  In addition, light in various directions arrives at the reflection surface 113b of the pointer main body 111 described above from a plurality of LEDs 109. For this reason, it is necessary to increase the area of the reflecting surface 113b in order to reflect more light toward the indicator 114 and to brighten the indicator 114 so that the occupant can visually recognize it. However, in order to enlarge the reflecting surface 113b, it is necessary to form the pointer main body 111 by injection molding, which causes the above-described problem.

  The present invention aims to solve such problems. That is, a first object of the present invention is to provide a guideline that can reduce the manufacturing cost and improve the designability, a method for manufacturing the guideline, and an instrument device including the guideline. In addition, a second object of the present invention is to provide an instrument device that can brighten and shine a pointer so that an occupant can visually recognize the pointer.

  In order to solve the above-mentioned problems and achieve the object, the invention described in claim 1 is an instrument comprising: a dial plate on which a display design is formed; and an instrument unit whose output shaft rotates in accordance with a measurement amount. The display design is used by the apparatus, is rotated by being attached to the output shaft, and is radiated by the light incident from the light source and the light extending from the light guide and guided from the light base. And a pointer provided with a pointer main body made of a translucent material, wherein the pointer main body has a plate thickness direction of the plate-like member made of the translucent material. The pointer is formed by punching the plate-like member so as to be in a width direction parallel to the dial of the pointer main body.

  According to a second aspect of the present invention, in the pointer according to the first aspect, the diffusion unit that reflects and diffuses the light guided into the instruction unit on a side surface that intersects the dial of the instruction unit. This is a guideline characterized by the formation of

  The invention described in claim 3 is used in an instrument device including a dial plate on which a display design is formed and an instrument unit whose output shaft rotates according to a measurement amount, and is attached to the output shaft. A base that rotates and receives light from a light source; and an indicator that extends from the base and shines by the light guided from the base and indicates the display design; and In the manufacturing method of a pointer for manufacturing a pointer provided with a pointer main body made of a light-transmitting material, the thickness of the plate-shaped member formed of the light-transmitting material is the character of the pointer main body. It is a manufacturing method of the pointer characterized by punching and forming the above-mentioned plate-like member so that it may become the width direction parallel to a board.

  According to a fourth aspect of the present invention, in the method for manufacturing a pointer according to the third aspect, the side surface of the indicating member that intersects the dial of the surface of the plate-shaped member before the pointer main body is punched. The pointer main body is formed by punching out the plate-like member after forming a diffusion part for reflecting and diffusing the light guided into the instruction part in a part to be formed. is there.

  The invention described in claim 5 is a dial on which a display design is formed, an instrument unit whose output shaft rotates according to a measurement amount, and is attached to the output shaft and rotates to indicate the display design. A pointer and a light source that shines the pointer, and the pointer is radiated by the light that is incident from the light source and extended from the base and guided by the light. In an instrument device having an indicating unit for indicating a display design and a pointer main body having a light transmitting material, the pointer main body has a plate thickness of a plate-shaped member formed of a light transmitting material. The instrument device is formed by punching the plate-like member so that the direction is a width direction parallel to the dial of the pointer main body.

  According to a sixth aspect of the present invention, in the instrument device according to the fifth aspect of the present invention, diffusion that reflects and diffuses the light guided into the indicator on the side surface of the indicator that intersects the dial. An instrument device characterized in that a portion is formed.

  According to a seventh aspect of the present invention, in the instrument device according to the fifth or sixth aspect, the output shaft is made of a light-transmitting material, and the pointer main body is disposed on one end side of the output shaft. And the light source is arranged on the other end side of the output shaft.

  According to an eighth aspect of the present invention, in the instrument device according to the seventh aspect, an end surface of the one end portion side of the output shaft is formed in a curved surface that is convex toward the pointer main body, It is an instrument apparatus characterized by converging the said light to go.

  According to a ninth aspect of the present invention, in the instrument device according to the seventh or eighth aspect, an end surface of the output shaft facing the light source is convex toward the light source. The instrument device is characterized in that it is formed into a curved surface and the light incident on the output shaft is converted into parallel light.

  According to the invention described in claim 1, since the pointer main body is formed by punching the plate-like member, the manufacturing cost can be reduced as compared with the injection molding. In addition, since the instruction portion can be formed with a constant width and a narrow width, the design of the pointer can be improved.

  According to the second aspect of the present invention, the diffusing unit reflects and diffuses the light guided into the instruction unit. Therefore, even if the pointer main body is narrow, the instruction section can be brightened and shined.

  According to the invention described in claim 3, since the pointer main body is formed by punching the plate-like member, the manufacturing cost can be reduced as compared with the injection molding. In addition, since the instruction portion can be formed with a constant width and a narrow width, the design of the pointer can be improved.

  According to the fourth aspect of the present invention, after the diffusion portion is formed in advance on the plate-like member before punching out the pointer main body, the plate-like member is punched out to form the pointer main body. For this reason, compared with the case where a diffusion part is formed after forming a pointer main body, a diffusion part can be formed more easily.

  According to the invention described in claim 5, since the pointer main body is formed by punching the plate-like member, the manufacturing cost can be reduced as compared with the injection molding. In addition, since the instruction portion can be formed with a constant width and a narrow width, the design of the pointer can be improved.

  According to the sixth aspect of the present invention, the diffusing unit reflects and diffuses the light guided into the instruction unit. Therefore, even if the pointer main body is narrow, the instruction section can be brightened and shined.

  According to the seventh aspect of the present invention, the light from the light source passes through the output shaft from the other end portion side to the one end portion side of the output shaft, and a sufficient amount is provided in a state where the directions are aligned. Incident on the body. For this reason, even if the pointer main body is narrow, it is possible to make the indicating unit brighter and more brilliant.

  According to the eighth aspect of the present invention, the end surface on the one end portion side of the output shaft is formed into a convex curved surface toward the pointer main body, and has a lens shape that converges light toward the pointer main body. . For this reason, more light enters the pointer body. Therefore, it is possible to make the instruction unit brighter and more brilliant.

  According to the ninth aspect of the present invention, the end surface on the other end side of the output shaft is formed into a convex curved surface toward the light source, and the lens shape makes the light incident on the output shaft parallel light. It has become. For this reason, more light passes through the output shaft and enters the pointer body. Therefore, it is possible to make the instruction unit brighter and more brilliant.

It is a front view which shows the combination meter for vehicles as a measuring instrument provided with the pointer | guide concerning one Embodiment of this invention. It is a perspective view which shows the movement in the combination meter for vehicles shown by FIG. FIG. 3 is a partial sectional view taken along line III-III in FIG. 2. It is a perspective view which shows the pointer | guide shown by FIG. FIG. 5 is a partial cross-sectional view taken along line VV in FIG. 4. (A) It is a perspective view which shows the pointer main body shown by FIG. (B) It is a side view of the pointer main body shown in FIG. (C) It is a side view from the direction opposite to FIG.6 (b) of the pointer main body shown by Fig.6 (a). FIG. 7 is a perspective view showing a plate-like member before punching out the pointer main body shown in FIG. 6. FIG. 6 is a partial cross-sectional view showing a state where the pointer shown in FIG. 5 is attached to the movement. (A) It is a perspective view which shows the modification of the pointer main body of this invention. (B) It is a side view of the pointer main body shown in FIG. (C) It is a side view from the direction opposite to FIG.9 (b) of the pointer main body shown by Fig.9 (a). It is a cross-sectional perspective view which shows the conventional instrument apparatus. It is a perspective view which shows the pointer main body shown by FIG. It is explanatory drawing explaining the state when light injects into the pointer main body shown by FIG. 10 seeing from the arrow XII direction in FIG. It is explanatory drawing explaining the state when light injects into the pointer main body shown by FIG. 10 seeing from the arrow XIII direction in FIG.

  Hereinafter, a pointer according to an embodiment of the present invention will be described with reference to FIGS. A pointer 10 according to an embodiment of the present invention is used in a vehicle combination meter 1 as an instrument device shown in FIG. The vehicle combination meter 1 is a device that is mounted on a moving body such as an automobile and displays the state of the moving body to a passenger of the moving body.

  As shown in FIG. 1, the vehicle combination meter 1 includes a casing (not shown), a display instrument 3, a turnback 4, and a transparent cover 5. The casing is made of a synthetic resin, and includes a substantially flat front casing and a box-shaped back casing that opens to the front casing. The front casing is attached to the back casing, and the casing is assembled.

  In the casing, a movement 8 as an instrument unit, which will be described later, an LED 9 as a light source for the pointer 10, and the like are accommodated. The casing further accommodates a wiring board 6 that is electrically connected to the movement 8, the LED 9, and the like. On the wiring board 6, electronic parts such as a microcomputer for controlling the operation of the movement 8 and the like are mounted.

  The display instrument 3 includes a speedometer 3a that displays the speed of the vehicle and a tachometer 3b that displays the engine speed. Since the speedometer 3a and the tachometer 3b have substantially the same structure, the speedometer 3a will be described as a representative. As shown in FIG. 8, the speedometer 3 a includes a dial 7, a movement 8, an LED 9, and a pointer 10.

  The dial 7 is made of a synthetic resin having translucency. The dial 7 is formed in a disk shape, and a through hole 7a through which an output shaft 93 (to be described later) of the movement 8 and a shaft mounting portion 23 (to be described later) of the pointer 10 pass is passed through the center. A light shielding layer is formed on the surface of the dial 7 facing the occupant. By removing a part of the light shielding layer, a scale 7b as a display design for displaying the vehicle speed on the surface of the dial 7 is formed. The scale 7b includes an outer edge scale and a numeric scale indicating the vehicle speed. The dial 7 is attached to the surface of the front casing facing the occupant and attached to the casing.

  The movement 8 is a known stepping motor, and is attached to the wiring board 6 as shown in FIG. The movement 8 is attached to the surface of the wiring board 6 near the dial 7. As shown in FIG. 3, the movement 8 includes a case 80, a rotor (not shown), a stator 90, an intermediate shaft portion 91, and an output shaft portion 92.

  The case 80 is made of a synthetic resin. The case 80 includes a first case portion 81 and a second case portion 85. The first case portion 81 includes a bottom wall 81a superimposed on the surface of the wiring board 6 near the dial plate 7, and a peripheral wall 81b standing from the outer edge of the bottom wall 81a, and is formed in a box shape having an opening. Yes. The first case portion 81 includes a shaft support portion 82 and an LED housing portion 83. The shaft support portion 82 includes a hole penetrating the bottom wall 81a and a cylindrical tube portion erected inward from the first case portion 81 from the inner edge of the hole. The LED housing portion 83 is formed in a concave shape from the outer surface superimposed on the wiring board 6 of the bottom wall 81 a and is formed at the outer edge portion of the hole of the shaft support portion 82.

  The second case portion 85 includes an upper wall 85a and a peripheral wall 85b erected from the outer edge of the upper wall 85a, and is formed in a lid shape. The second case portion 85 includes a shaft support portion 86. The shaft support portion 86 includes a hole penetrating the upper wall 85a and a cylindrical tube portion erected from the inner edge of the hole to the outside of the second case portion 85. The second case portion 85 is attached to the first case portion 81 so as to cover the opening of the first case portion 81, and the case 80 is assembled. The case 80 accommodates a rotor, a stator 90, an intermediate shaft portion 91, and an output shaft portion 92.

  The rotor includes a rotor shaft, a rotor body disposed on the outer periphery of the rotor shaft, a magnet disposed on the outer periphery on one end side in the axial direction of the rotor body, and a first pinion formed on the other end side in the axial direction of the rotor body And. The rotor is rotatably supported in the case 80 with both end portions of the rotor shaft being pivotally supported by the first case portion 81 and the second case portion 85, respectively.

  The stator 90 includes a yoke and a coil. The yoke is composed of a laminated plate. The yoke is integrally provided with a frame portion formed in a frame shape and a plurality of magnetic poles protruding from the inner edge of the frame portion to the inside of the frame portion. The yoke positions the rotor on the inside so that the tips of these magnetic poles face the rotor magnet.

  The coil includes a bobbin attached to the outer periphery of the magnetic pole and a winding wound around the bobbin. The winding is electrically connected to the wiring board 6 and is connected to vehicle speed measuring means for measuring the vehicle speed mounted on the vehicle via electronic parts such as a microcomputer for controlling the operation of the movement 8 described above.

  The intermediate shaft portion 91 includes a shaft main body 91a made of a metal material or the like, and a first gear 91b and a second pinion 91c made of a synthetic resin and attached to the shaft main body 91a. Both ends of the shaft main body 91a are pivotally supported by the first case portion 81 and the second case portion 85, respectively. The intermediate shaft portion 91 is attached to the case 80 so as to be rotatable about the shaft main body 91a. The first gear 91b is arranged on the outer periphery at the center in the axial direction of the shaft main body 91a and meshes with the first pinion of the rotor. The second pinion 91c is formed integrally with the first gear 91b, and is arranged on the outer periphery on the one end side in the axial direction of the shaft body 91a with respect to the first gear 91b.

  The output shaft portion 92 is made of a synthetic resin (translucent material) having translucency such as acrylic resin or polycarbonate resin. The output shaft portion 92 is integrally provided with a cylindrical output shaft 93 and a second gear 92a. One end portion 94 in the longitudinal direction of the output shaft 93 is pivotally supported by the shaft support portion 86 of the second case portion 85 and protrudes outside the second case portion 85, that is, outside the case 80. Further, the other end portion 95 of the output shaft 93 is pivotally supported by the shaft support portion 82 of the first case portion 81, and its end surface 95 a is exposed outside the first case portion 81, that is, outside the case 80 through the hole of the shaft support portion 82. doing. The output shaft portion 92 is attached to the case 80 so as to be rotatable about the output shaft 93. The second gear 92 a is formed on the outer periphery of the output shaft 93 and meshes with the second pinion 91 c of the intermediate shaft portion 91.

  In the movement 8 having the above-described configuration, the rotor is rotated by applying an electric current to the coil of the stator 90 by the electronic component such as the microcomputer described above based on the measurement amount of the vehicle speed measuring means. In the movement 8, the intermediate shaft portion 91 rotates as the rotor rotates, and the output shaft portion 92, that is, the output shaft 93 rotates, as the intermediate shaft portion 91 rotates. Thus, in the movement 8, the output shaft 93 rotates in accordance with the measurement amount or the like.

  Further, as shown in FIG. 3, the movement 8 is attached to the wiring board 6 so that the LED 9 attached to the wiring board 6 is positioned in the LED accommodating portion 83. When the movement 8 is thus attached to the wiring board 6, the end surface 95 a on the other end 95 side of the output shaft 93 exposed to the outside of the case 80 faces the LED 9. An end surface 95a on the other end 95 side of the output shaft 93 is formed into a convex curved surface toward the LED 9 and has a lens shape that makes light incident on the output shaft 93 parallel light.

  Further, as shown in FIG. 8, the pointer 10 is attached to one end portion 94 of the output shaft 93 that protrudes outside the case 80 of the movement 8. When the pointer 10 is attached to the output shaft 93, the end surface 94 a on the one end portion 94 side of the output shaft 93 faces a pointer main body 11 described later of the pointer 10. An end surface 94a on the one end 94 side of the output shaft 93 is formed in a convex curved surface toward the pointer main body 11, and has a lens shape that converges light that passes through the output shaft 93 and travels toward the pointer main body 11. Yes.

  The LED 9 is attached to the surface of the wiring board 6 near the dial 7 as shown in FIG. When the movement 8 is attached to the wiring board 6, the LED 9 is positioned in the LED accommodating portion 83 of the movement 8 and faces the end face 95 a on the other end 95 side of the output shaft 93. The light from the LED 9 enters the end face 95 a on the other end 95 side of the output shaft 93 and then passes through the output shaft 93 as parallel light. Thereafter, the light reaches the pointer 10 from the end surface 94a on the one end portion 94 side of the output shaft 93 so as to converge and converge with an outer diameter (light flux) substantially equal to the outer diameter J (FIG. 3 and the like) of the output shaft 93. The pointer 10 is emitted and shines.

  The pointer 10 is rotated by the movement 8 in accordance with the measurement amount measured by the vehicle speed measuring means described above, and displays the measurement amount in cooperation with the scale 7 b formed on the dial 7. The pointer 10 will be described in detail later.

  The facing 4 is arranged on the surface of the dial 7 facing the occupant. The turn 4 is attached to the surface of the front casing in a state where the dial 7 is sandwiched between it and the front casing. A plurality of exposure windows for exposing the dial 7 to the occupant are formed on the turn 4. The lookback 4 shields the passenger other than the display parts of the speedometer 3a and the tachometer 3b.

  The transparent cover 5 is made of a synthetic resin having transparency. The transparent cover 5 is attached to the side facing the occupant of the turn 4. The transparent cover 5 covers the opening of the facing 4 and prevents dust and the like from entering the vehicle combination meter 1.

  Hereinafter, the pointer 10 will be described. As shown in FIGS. 4 and 5, the pointer 10 includes a pointer main body 11, a pointer rod 20, and a pointer cap 30.

  The pointer main body 11 is composed of a synthetic resin (translucent material) having translucency such as acrylic resin or polycarbonate resin. The pointer body 11 is formed in a flat plate shape as shown in FIG. As shown in FIG. 7, such a flat pointer main body 11 is made of the light-transmitting synthetic resin and has a plate thickness direction K <b> 1 (FIG. 7) of the plate member 12 having a plate thickness K (FIG. 7). 7 is indicated by punching the plate-like member 12 with a predetermined press die so that the width direction K1 (indicated by the arrow K1 in FIG. 6) of the pointer main body 11 is indicated by the arrow K1. In the present specification, the width direction K1 of the pointer main body 11 is a direction that intersects the longitudinal direction of the pointer main body 11 and is parallel to the plane direction of the dial 7.

  The pointer main body 11 is integrally provided with a base portion 13 and an instruction portion 14 extending from the base portion 13. The base 13 is provided at one end of the pointer main body 11. When the pointer 10 is attached to the movement 8, the base 13 receives light from the LED 9 in opposition to the one end 94 of the output shaft 93. The base 13 becomes the center of rotation when the pointer 10 rotates. One end face of the base portion 13 facing the output shaft 93 is a light receiving surface 13a on which light passing through the output shaft 93 is incident. The light receiving surface 13a is formed in a rectangular shape in plan view and is formed flat.

  The plate thickness K of the plate-like member 12 (that is, the width K of the pointer main body) is the sum (J + Δd) of the outer diameter J of the output shaft 93 and the assembly error Δd (not shown) between the output shaft 93 and the pointer main body 11. ), Almost all of the light passing through the output shaft 93 enters the light receiving surface 13a. For this reason, it is sufficient that the plate thickness K of the plate-like member 12 is J + Δd at the maximum. It should be noted that the plate thickness K of the plate-like member 12 may be appropriately reduced as long as the pointer main body 11 is sufficiently bright without making all the light from the output shaft 93 incident. In this case, the pointer main body 11 can be made narrower, and the design of the pointer 10 can be improved.

  The other end surface of the base portion 13 is a reflecting surface 13b that reflects light incident on the base portion 13 from the light receiving surface 13a toward the pointing portion 14. The reflecting surface 13b is provided at a position facing the end surface 94a on the one end portion 94 side of the output shaft 93 with the light receiving surface 13a interposed therebetween. The reflection surface 13b is formed in a rectangular shape in plan view, and is formed flat along the direction intersecting with the light receiving surface 13a.

  The area of the reflection surface 13b is represented by the product of the plate thickness K of the plate-like member 12 (that is, the width of the pointer main body 11) and the long side L (FIG. 6), and the reflection surface of the conventional pointer main body 111 shown in FIG. It is smaller than 113b. However, the light from the LED 9 passes through the output shaft 93, so that the direction of the light is more uniform than the light from the conventional LED 109 shown in FIGS. For this reason, even if it is the small reflective surface 13b, more light can be reflected toward the instruction | indication part 14, and the pointer main body 11 can fully shine.

  The instruction unit 14 extends from a portion of the base 13 that is away from the light receiving surface 13a and the reflecting surface 13b. Since the indicator main body 11 is formed by punching the plate-like member 12, the indicating portion 14 has a uniform width (length in the direction of the arrow K1) as shown in FIG. Moreover, the instruction | indication part 14 becomes thin gradually (length in the arrow T1 direction in Fig.6 (a)) as it leaves | separates from the base 13. As shown in FIG. The instruction unit 14 shines by the light guided from the base 13 and points to the scale 7 b on the dial 7.

  Further, diffusion portions 15 (shown by parallel oblique lines in FIGS. 4, 6, and 7 and omitted in FIGS. 5 and 8) are formed on both side surfaces 14a of the instruction portion 14, respectively. The side surface 14 a of the instruction unit 14 refers to a surface orthogonal to (intersects) the surface of the dial 7 of the instruction unit 14. The diffusion portion 15 is formed in a layer shape and is formed over substantially the entire side surface 14a.

  As shown in FIG. 7, the diffusing unit 15 is preliminarily colored with a predetermined color by screen printing or the like on the surface of the plate-like member 12 before punching out the pointer main body 11 to become the side surface 14a of the indicating unit 14. It is formed by applying. The diffusion unit 15 reflects and diffuses the light guided into the instruction unit 14 without transmitting through the side surface 14 a and within the instruction unit 14. Of course, the diffusion portion 15 may be formed after the pointer main body 11 is punched out.

  The pointer rod 20 is made of a synthetic resin having a light shielding property. As shown in FIG. 5, the pointer rod 20 includes a disk-shaped bottom wall 21, a pointer mounting portion 22 and a shaft mounting portion 23 erected from the bottom wall 21. A through hole 21 a that guides light from the output shaft 93 to the pointer main body 11 passes through the center of the bottom wall 21. Further, a boss hole 21b through which an attachment boss 35 to be described later of the pointer cap 30 passes is passed through the outer edge portion of the through hole 21a.

  A pair of pointer attaching portions 22 are provided so as to stand from the surface of the bottom wall 21 facing the pointer cap 30 and to position the through hole 21a therebetween. The pair of pointer attachment portions 22 are formed in a U-shape that opens in a direction opposite to each other, and positions the base portion 13 of the pointer main body 11 between each other. In addition, a protrusion 24 that abuts the bottom surface of the pointing portion 14 on the base end portion side protrudes from the upper surface of one pointer mounting portion 22.

  The shaft attachment portion 23 is erected from the back surface of the bottom wall 21. The shaft attachment portion 23 is erected from the inner edge of the through hole 21a and is formed in a cylindrical shape. The inner diameter of the shaft mounting portion 23 is slightly smaller than the outer diameter J of the output shaft 93. The output shaft 93 of the movement 8 is press-fitted into the shaft attachment portion 23.

  The pointer cap 30 is made of a synthetic resin having a light shielding property. As shown in FIG. 5, the pointer cap 30 includes a disk-shaped upper wall 31 and a peripheral wall 32 erected from the outer edge of the upper wall 31, and is formed in a bottomed cylindrical shape. The pointer cap 30 includes a pointer mounting piece 33, a pointer through hole 34, and a mounting boss 35.

  The pointer mounting piece 33 is erected from a portion of the inner surface of the upper wall 31 facing the pointer rod 20 that faces the protrusion 24 of the pointer rod 20, and is disposed along the radial direction of the upper wall 31. The pointer attaching piece 33 is formed in a U-shape opening toward the pointer rod 20 and positions the proximal end portion of the indicating portion 14 on the inner side. The pointer through hole 34 is formed by cutting out the peripheral wall 32 in the vicinity of the pointer mounting piece 33. The pointer through hole 34 allows the indicating portion 14 attached to the pointer attaching piece 33 to pass inside.

  The mounting boss 35 is formed in a columnar shape, and is erected from a portion of the inner surface of the upper wall 31 facing the boss hole 21b of the pointer rod 20. The mounting boss 35 is formed in such a length that it passes through the boss hole 21 b and protrudes toward the bottom surface side of the pointer rod 20 when the pointer cap 30 is attached to the pointer rod 20. When the mounting boss 35 enters the boss hole 21b, the pointer cap 30 and the pointer rod 20 are positioned, and the pointer main body 11 is sandwiched between the pointer mounting piece 33 and the protrusion 24 of the pointer rod 20.

  When assembling the pointer 10 having the above-described configuration, first, the base portion 13 of the pointer main body 11 is attached between the pair of pointer mounting portions 22 of the pointer rod 20, and the pointer main body 11 is erected from the pointer rod 20. To do. Next, the pointer cap 30 is moved closer to the pointer rod 20, and the attachment boss 35 is passed through the boss hole 21b to position the pointer cap 30 and the pointer rod 20. Then, the indicating portion 14 is passed through the pointer passing hole 34, and the indicating portion 14 is sandwiched between the pointer attaching piece 33 and the protrusion 24. Thereafter, the tip of the mounting boss 35 protruding from the pointer rod 20 is welded to the back surface of the bottom wall 21. Thus, the pointer rod 20 and the pointer cap 30 are fixed in a state where the pointer main body 11 is sandwiched between them, and the pointer 10 is assembled.

  The pointer 10 assembled as described above is attached to the output shaft 93 of the movement 8 on the wiring board 6 as shown in FIG. The pointer 10 is supported so that one end portion 94 of the output shaft 93 of the movement 8 is press-fitted into the shaft mounting portion 23 of the pointer rod 20 and rotates integrally with the output shaft 93. The pointer 10 rotates around the base 13 of the pointer main body 11, the pointer cap 30 and the pointer rod 20. At this time, the LED 9 on the wiring board 6 is positioned in the LED accommodating portion 83 of the movement 8, and the other end portion 95 of the output shaft 93 is opposed to the LED 9.

  Hereinafter, a process in which the light from the LED 9 shines the pointer 10 will be described. As shown in FIG. 8, the light from the LED 9 is incident on the end surface 95 a on the other end 95 side of the output shaft 93 and passes through the output shaft 93 as parallel light. Thereafter, the light is emitted toward the pointer main body 11 while converging through the end surface 94 a on the one end portion 94 side of the output shaft 93.

  Thereafter, the light is incident on the light receiving surface 13a of the pointer main body 11, and is reflected toward the instruction unit 14 by the reflecting surface 13b. The light that has entered the instruction unit 14 travels toward the distal end side of the instruction unit 14 while being reflected by the diffusion unit 15, and makes the entire instruction unit 14 shine brightly. Thus, the pointer main body 11, that is, the pointer 10 shines, indicates the scale 7 b on the dial 7, and displays the state of the moving body to the passenger of the moving body.

  According to the present embodiment, the pointer main body 11 is formed by punching the plate member 12 having a plate thickness K. For this reason, the instruction | indication part 14 can be formed in the fixed width K and narrow width. Therefore, the designability of the pointer 10 can be improved. Furthermore, the manufacturing cost can be reduced as compared with injection molding.

  The diffusion unit 15 reflects and diffuses the light guided into the instruction unit 14. Therefore, even if the pointer main body 11 is narrow, the instruction unit 14 can be made brighter and more brilliant. Further, after the diffusion portion 15 is formed in advance on the plate-like member 12 before the pointer main body 11 is punched, the plate member 12 is punched to form the pointer main body 11. For this reason, compared with the case where the diffusion part 15 is formed after the pointer body 11 is formed, the diffusion part 15 can be formed more easily.

  Further, the light from the LED 9 passes through the output shaft 93 from the other end 95 side of the output shaft 93 toward the one end 94 side, and a sufficient amount is incident on the pointer main body 11 in a uniform state. For this reason, even if the pointer main body 11 is narrow, the instruction unit 14 can be made brighter and more brilliant.

  Further, the end surface 94a on the one end 94 side of the output shaft 93 is formed in a convex curved surface toward the pointer main body 11, and has a lens shape that converges the light toward the pointer main body 11. For this reason, more light enters the pointer main body 11. Therefore, the instruction unit 14 can be made brighter and more brilliant.

  Further, the end surface 95a on the other end 95 side of the output shaft 93 is formed in a convex curved surface toward the LED 9, and has a lens shape that makes light incident on the output shaft 93 parallel light. Therefore, more light passes through the output shaft 93 and enters the pointer body 11. Therefore, the instruction unit 14 can be made brighter and more brilliant.

  In the embodiment described above, the diffusing portion 15 is formed over substantially the entire side surface 14a of the indicating portion 14. However, in the present invention, as shown in FIG. 9, the diffusing portion 15 </ b> A may be formed so as to gradually widen from the proximal end side to the distal end side of the indicating portion 14. In this way, the light intensity can be adjusted between the base end portion and the tip end portion of the instruction section 14 to make the entire instruction section 14 shine more uniformly, and the uneven brightness of the instruction section 14 can be reduced.

  In the above-described embodiment, both the end surface 94a on the one end 94 side and the end surface 95a on the other end 95 side of the output shaft 93 of the movement 8 are each formed in a lens shape. However, in the present invention, either one of the end surfaces 94a may have a lens shape, or both may not have a lens shape.

  The above-described embodiments are merely representative examples of the present invention, and the present invention is not limited to the above-described embodiments. That is, various modifications can be made without departing from the scope of the present invention.

1 Vehicle combination meter (instrument equipment)
7 Dial 7b Scale (Display design)
8 Movement (instrument unit)
9 LED (light source)
DESCRIPTION OF SYMBOLS 10 Pointer 11 Pointer main body 12 Plate member 13 Base 14 Instruction part 14a Side surface 15, 15A Diffusion part 93 Output shaft 94 One end part 94a End surface 95 Other end part 95a End surface K1 The plate | board thickness direction of a plate-like member, the width direction of a pointer main body

Claims (9)

Used in an instrument device comprising a dial plate on which a display design is formed, and an instrument unit whose output shaft rotates according to a measurement amount, and is attached to the output shaft and rotates.
A translucent material, comprising: a base on which light from a light source is incident; and an instruction unit that extends from the base and that is illuminated by the light guided from the base and indicates the display design In the pointer with the pointer body composed of
The pointer main body is formed by punching the plate-like member so that the thickness direction of the plate-like member made of a light-transmitting material is a width direction parallel to the dial of the pointer main body. Characteristic guideline.   2. The pointer according to claim 1, wherein a diffusion portion that reflects and diffuses light guided in the indication portion is formed on a side surface that intersects the dial of the indication portion. Used in an instrument device comprising a dial plate on which a display design is formed, and an instrument unit whose output shaft rotates according to a measurement amount, and is attached to the output shaft and rotates.
A translucent material, comprising: a base on which light from a light source is incident; and an instruction unit that extends from the base and that is illuminated by the light guided from the base and indicates the display design In the manufacturing method of the pointer for manufacturing the pointer with the pointer main body configured by:
The pointer body is formed by punching the plate member so that a plate thickness direction of the plate member made of a light-transmitting material is a width direction parallel to the dial of the pointer body. The manufacturing method of the guideline.   A diffusion unit for reflecting and diffusing the light guided into the indicator in advance on a portion of the surface of the plate-like member before punching out the pointer main body on a side surface that intersects the dial of the indicator. 4. The method of manufacturing a pointer according to claim 3, wherein the pointer main body is formed by punching the plate-shaped member after the formation. A dial plate on which a display design is formed, an instrument unit in which an output shaft rotates in accordance with a measurement amount, a pointer attached to the output shaft and rotated to indicate the display design, and a light source that shines the pointer With
The pointer has a base on which light from the light source is incident; an instruction unit that is extended from the base and guided by the light guided from the base, and indicates the display design; and In an instrument device provided with a pointer body made of a light-transmitting material,
The pointer main body is formed by punching the plate-like member so that the thickness direction of the plate-like member made of a light-transmitting material is a width direction parallel to the dial of the pointer main body. A characteristic instrument device.   The instrument device according to claim 5, wherein a diffusion portion that reflects and diffuses light guided in the indication portion is formed on a side surface of the indication portion that intersects the dial. The output shaft is made of a translucent material,
The instrument device according to claim 5 or 6, wherein the pointer main body is disposed on one end portion side of the output shaft, and the light source is disposed on the other end portion side of the output shaft.   The instrument device according to claim 7, wherein an end surface of the output shaft on the one end portion side is formed as a curved surface that is convex toward the pointer body, and converges the light traveling toward the pointer body.   The end face of the output shaft facing the light source is formed as a curved surface convex toward the light source, and the light incident on the output shaft is converted into parallel light. The instrument device according to claim 7 or 8.

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