JP4719016B2 - Pointer-type display device and method for manufacturing the pointer-type display device - Google Patents

Description

  The present invention relates to a pointer-type display device and a method for manufacturing the pointer-type display device. More specifically, the present invention relates to a light guide pointer provided on the front side of a dial and the pointer provided behind the dial. The present invention relates to a pointer-type display device having a light source that shines, and a method for manufacturing the pointer-type display device.

  Generally, a vehicle is equipped with a pointer type display device that displays measured values such as vehicle speed and engine speed. This pointer-type display device includes a dial having a scale and indicators such as numerals, characters, symbols, etc. on the surface, a pointer disposed on the front of the dial, and an internal unit that drives the pointer in accordance with the measurement amount. And a wiring board on which a circuit pattern is provided and the internal unit is fixed, is housed in a meter case.

  Among analog instruments such as speedometers and tachometers, analog (pointer) type instruments that use pointers and dials are used to illuminate the dials and dials so that they can be easily seen in the dark. Conventionally, there has been disclosed a pointer-type display device that shines an indicator portion of a pointer made of a light guide member with light from a light source disposed behind the pointer.

  Further, in the pointer type display device described above, a stepper motor is used as a drive unit for driving the pointer, and pulse width modulation (PWM) control signals from various control devices are transmitted to a drive coil in the motor. By rotating the output shaft, the pointer provided at the tip of the output shaft is driven.

  The pointer-type display device has a wiring board on which a stepper motor is mounted, and can be wired without incurring extra costs, and can be easily adapted to design changes and specification changes. The present applicant has proposed (see Patent Document 1).

In this wiring board, a light source (functional component) such as an LED for illuminating the meter is mounted on the surface of the substrate. The light source is arranged on the wiring board so as to avoid the mounting range of the stepper motor. In consideration of the light distribution to the pointer, if the light source is arranged in the vicinity of the driving axis of the pointer, the occurrence of uneven brightness due to the rotation of the pointer can be reduced. Generation of luminance unevenness due to rotation can be avoided.
JP 2003-218552 A

  However, in the above-described wiring board, the stepper motor terminals and locking members fixed on the back side of the wiring board protrude from the surface near the drive shaft, so that a space for arranging the light source near the drive shaft is ensured. It was difficult. For this reason, the light source is arranged at a position away from the drive shaft, and it has been impossible to avoid the occurrence of uneven brightness due to the rotation of the pointer.

  In addition, the stepper motor is fixed to the printed circuit board provided on the back of the dial plate with a locking structure, and is electrically connected to the printed circuit body of the printed circuit board. A technique of being inserted and electrically joined to a land portion of a printed circuit body by spot solder (melting temperature: 180 to 190 degrees) is generally widespread. However, since spot-solder uses tin-tin solder containing Pb (lead), which is an environmental load substance, examination of alternative materials or alternative connection techniques is required.

  First, as an alternative to tin-lead solder, free solder (mainly tin, silver, etc.) is becoming popular instead of lead solder, but tin and silver are the mainstream, and the melting temperature is also lead. -Since it is hotter than tin solder (more than 200 degrees and the appropriate melting temperature range is narrower than lead solder), when reflow soldering is performed, it is necessary to be exposed to a thermostatic bath and melt bonded, polyethylene inside the stepper motor Thermoplastic resin parts such as these cannot thermally endure, and are not suitable as a technology for connecting to a substrate. Further, PBT (thermoplastic resin) and unsaturated polyester (thermosetting resin) that can withstand the reflow soldering temperature are high in material cost and are not suitable for press-fit assembly of terminals.

  Next, when the connector is mounted on the board as a separate component, the reflow method cannot be used as described above, so a fixing method using a locking member to the board is conceivable. Since there is a need to mount a stepper motor on the back of the part, it is difficult to route.

  Therefore, in view of the above-described problems, the present invention provides a pointer-type display device and a method for manufacturing the pointer-type display device in which a light source is provided near the drive shaft and luminance unevenness of the pointer can be eliminated. It is said.

  The pointer-type display device according to claim 1, which is made according to the present invention to solve the above-mentioned problems, includes a light guide pointer provided on the front side of the dial, and a pointer provided on the back of the dial. In a pointer-type display device having a light source that shines, a driving unit that drives the pointer, a driving unit that is provided behind the dial and is mounted, and a driving shaft and a supply terminal of the driving unit A first board having a driving wiring pattern for transmitting a driving signal of the driving means and a light source wiring pattern for transmitting a control signal of the light source on the protruding surface; and the first board on which the driving means is mounted. A second substrate provided on the opposite surface, and the second substrate is fitted with a penetrating portion through which the drive shaft protrudes from the first substrate and a supply terminal protruding from the first substrate. Combine A connector part electrically connected to the drive wiring pattern, and a light source positioning part for positioning the light source near the penetration part and electrically connecting the light source to the light source wiring pattern, It is characterized by having.

  According to the pointer type display device of the present invention described in claim 1, when the driving means is mounted on one side of the first substrate and the second substrate is mounted on the other side, the driving shaft of the driving means is The supply terminal is fitted into the connector part of the second board and is electrically connected to the driving wiring pattern through the through part of the two boards. The light source mounted on the light source positioning portion of the second substrate is arranged near the drive shaft of the drive means that protrudes from the through portion of the second substrate.

  In order to solve the above problem, the invention according to claim 2 is the pointer-type display device according to claim 1, wherein the second substrate locks the second substrate to the first substrate. And the locking portion and the light source positioning portion are integrally injection-molded.

  According to the pointer-type display device of the present invention described in the second aspect, the locking portion and the light source positioning portion of the second substrate are integrally formed by injection molding. Then, the second substrate is mounted on the first substrate by the locking portion.

  In order to solve the above-mentioned problem, the invention according to claim 3 is the pointer type display device according to claim 1 or 2, wherein the light source positioning portion is provided with the driving means in the first substrate. The light source is positioned on the second substrate so as to be inside and close to the penetrating portion.

  According to the pointer type display device of the present invention described in claim 3, the light source is positioned by the light source positioning unit so as to be within the range where the driving means is provided on the first substrate and close to the through portion. it can.

  In order to solve the above-mentioned problem, the invention according to claim 4 is the pointer-type display device according to any one of claims 1 to 3, wherein the connector portion is a polygonal column shape into which the supply terminal is fitted. And a connector terminal having a clamping portion that is provided along the inner wall of the fitting hole and clamps the supply terminal.

  According to the pointer type display device of the present invention described in claim 4 above, when the supply terminal of the driving means is fitted in the fitting hole, the supply terminal is clamped by the clamping portion and is electrically connected to the drive wiring pattern. Connected.

  A method for manufacturing a pointer-type display device according to claim 5, which is made according to the present invention to solve the above-described problem, is the method for manufacturing a pointer-type display device according to any one of claims 1 to 4, wherein Mounting the light source on the light source positioning portion of the substrate by soldering; mounting the driving means on the first substrate; and the driving shaft protruding from the first substrate protruding from the penetrating portion; and Mounting the second substrate on the first substrate so that the supply terminal of the driving means protruding from the first substrate and the connector portion are fitted and electrically connected to each other. And

  According to the method for manufacturing the pointer type display device of the present invention described in claim 5, the light source is positioned near the penetrating portion by mounting the light source on the light source positioning portion of the second substrate by soldering. When the driving means is mounted on one side of the first substrate and the second substrate is mounted on the other side, the driving shaft of the driving means is penetrated through the penetrating portion of the second substrate, and the supply terminal is the second substrate. It is fitted to the connector part and electrically connected to the driving wiring pattern. As a result, the light source mounted on the light source positioning portion of the second substrate is disposed near the drive shaft.

  As described above, according to the first and fifth aspects of the present invention, the light source can be arranged near the drive shaft of the drive means mounted on the first substrate by the light source positioning portion of the second substrate. Therefore, since the brightness unevenness of the pointer when the pointer is rotated can be eliminated, it is possible to prevent the driver from feeling uncomfortable. In addition, since the light sources can be arranged near the drive shaft, the number of light sources can be reduced or light sources with low luminance can be used, so that the cost can be reduced. Furthermore, since it is only necessary to mount a light source on the second substrate, it becomes possible to use reflow solder having a high melting temperature, without using tin-tin solder containing lead which is an environmental load substance. Therefore, it is possible to easily cope with lead-free.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the second substrate is formed by injection molding so that the locking portion and the light source positioning portion are integrated. Since the second board is mounted on the first board by the portion, there is no need to mount a separate connector on the second board. Therefore, when the separate connector is soldered and mounted, There is no need to manage the verticality of a separate connector, and the work efficiency of assembly work and the like can be improved. In addition, since the circuit can be three-dimensionally arranged on the surface of the second substrate by injection molding, the circuit connected to the connector part, the circuit connected to the light source, etc. can be arranged up to the back surface of the second substrate. By fixing with the circuit and the locking portion, it is possible to ensure electrical conduction by pressing contact, so that solder bonding can be eliminated.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the light source positioning is performed so that the driving means in the first substrate is within the range where the driving means is provided and is close to the penetrating portion. Since the light source is positioned by the portion, the light source can be surely arranged near the drive shaft, so that the brightness unevenness of the pointer when the pointer is rotated can be eliminated.

  According to the invention described in claim 4, in addition to the effect of the invention described in any one of claims 1 to 3, since the fitting hole of the second substrate is formed in a polygonal column shape, the second substrate At the time of injection molding, it is fixed to the housing by insert molding and does not fall off, and it is not necessary to post-fit the supply terminal after molding. Also, since the through hole has a polygonal cross section, if the supply terminal is a round pin terminal, it can be inserted without increasing the insertion resistance at the time of insertion, and the supply terminal is bent slightly. The supply terminal is guided to an appropriate fitting position in the sandwiching portion, and the sandwiching portion can be securely sandwiched and contacted.

  The best mode of applying the pointer type display device according to the present invention to a vehicle combination will be described below with reference to the drawings of FIGS.

  1 to 7, the pointer-type display device 1 of the present invention is a combination meter in which a speedometer, a fuel meter, a water temperature meter, a tachometer, an odometer, and the like are integrated.

  The pointer-type display device 1 includes a turning back 2, a dial 3, a pointer 4, an LCD (liquid crystal display) 5, a plurality of LEDs (light emitting diodes) 6 serving as a light source, a front cover 7, and a driving means. And an inner unit 11, a first substrate 12, a second substrate 13, and smoke glass (not shown) that covers the front of the dial 3.

  The turn-back 2 is formed of, for example, black synthetic resin and has a plurality of display windows corresponding to each display design such as a speedometer, a fuel meter, a water temperature meter, a tachometer, and an odometer.

  The dial plate 3 is made of, for example, a synthetic resin such as polycarbonate, and has a horizontally long shape corresponding to each meter. On the dial 3, display designs 31a and 31b corresponding to a speedometer, a fuel meter and the like, a direction design 31c, various kinds of warning designs 31d, a change lever position design 31e, and the like are formed. In addition, a pointer 4 is attached which indicates a predetermined display design on the dial 3 by being rotated by a predetermined angle based on each measurement value by a movement corresponding to each meter.

  As is well known, the pointer 4 includes a pointer main body 43 including an instruction portion 41 and a base portion 42 and a pointer cap 44 made of an opaque resin material such as black covering the base portion 42. The pointer main body 43 is rotated by the drive shaft by being fixed to a drive shaft, which will be described later, via a pointer rod.

  The pointer main body 43 is formed of a transparent acrylic resin. When the light emitted from the LED 6 is incident on the pointer main body 43 from the base portion 42, the inside thereof is guided and reflected by a reflecting surface (not shown) that reflects in the pointing direction of the pointing unit 41, and toward the tip of the pointing unit 41. Light is guided. As a result, it is visually recognized by the user as if the instruction unit 41 is shining with the light guided through the instruction unit 41. Note that a colored layer may be provided on the bottom surface of the pointer main body 43 to improve the reflection of light on the top surface of the pointer main body 43 so as to increase the brightness of the pointer 4.

  The LCD 5 is an instruction device for an odometer that displays the cumulative travel distance and the like as digital values. The LCD 5 is provided below the LCD window, that is, on the back side of the dial 3 so that a predetermined display such as accumulated travel distance information can be externally displayed via the LCD window of the dial 3.

  The LED 6 is an illumination device that illuminates the pointer 4 and is controlled to be turned on and off by a control signal. The LED 6 is provided on the upper surface of the second substrate 13 so as to face the end portion of the base portion 42 of the pointer 4 behind the dial plate 3. Then, the light emitted from the LED 6 enters the pointer main body 43 from the base portion 42 of the pointer 4. A bulb or the like can be used as the light source.

  The front cover 7 is formed of a synthetic resin such as plastic, for example, and has a horizontally long dish shape corresponding to the shape of the dial 3. The front cover 7 is integrated with the back cover, and accommodates the movement and an electronic substrate on which various electronic components are mounted so as to be sandwiched from both sides. The front cover 7 has a case 8 that accommodates the LCD 5 and a back lighting unit 10 to be described later. The case 8 is formed integrally with the front cover 7.

  As shown in FIGS. 2 and 3, a known stepper motor, movement, or the like is used for the inner unit 11. The inner unit 11 includes a drive shaft 111, a plurality of (four in FIG. 3) supply terminals 112, and a pair of locking arms 113. The pointer 4 is fixed to the tip of the drive shaft 111. The drive shaft 111 is rotatably held by a holding portion 115 erected from the housing 114.

  The end of each supply terminal 112 protrudes from the housing 114 in the same direction as the drive shaft 111, and the length of the protruding portion is a length that can be fitted into the second substrate 13 through the first substrate 12. It has become. The internal unit 11 rotates the drive shaft 111 according to the drive signal input from each supply terminal 112.

  The locking arm 113 includes a base portion 113a and a pair of elastic arms 113b that are erected from the base portion 113a so as to face each other at a predetermined interval. Locking projections 113c are formed at the ends of the pair of arms 113b. When the inner unit 11 is mounted on the first board 12, the pair of locking arms 113 b are brought close to each other to penetrate the first locking holes 121 of the first board 12, and the locking projections 113 c are engaged with the first board 12. By stopping, the internal unit 11 is prevented from falling off the first substrate 12, and the internal unit 11 is mounted on the first substrate 12.

  The first substrate 12 is a flat printed wiring board and is provided behind the dial 3 so as to be integrated with the front cover 7. As shown in FIGS. 3 to 4, the first substrate 11 includes a drive shaft hole 120 through which the drive shaft 111 of the internal unit 11 passes, the pair of first locking holes 121 for mounting the internal unit 11, and 4 One driving wiring pattern 122, four light source wiring patterns 123, four terminal holes 124, a pair of second locking holes 125 for mounting the second substrate 13, and two positioning holes for the second substrate 13 126 and a plurality of electronic components 127.

  The drive shaft hole 120 is formed in a columnar shape so that the holding portion 115 of the internal unit 11 is fitted. The first locking hole 121 is formed as a rectangular parallelepiped hole so that the locking projection 113 c of the locking arm 113 is locked when the inner unit 11 is mounted on the first substrate 12. The driving wiring pattern 122 is connected to a control unit (not shown) and forms an electric circuit for controlling the driving of the internal unit 11. The light source wiring pattern 123 is connected to a control unit (not shown) and forms an electric circuit for controlling the lighting and extinguishing of the LED 6.

  The terminal hole 124 is formed as a hole through which the supply terminal 112 of the internal unit 11 can pass. The 2nd latching hole 125 is formed as a rectangular parallelepiped hole so that the latching part of the 2nd board | substrate 13 mentioned later may be penetrated. The positioning hole 126 is formed as an oval hole whose cross section is slightly larger than the boss of the second substrate 13. The electronic component 127 is a chip-like capacitor and resistor mounted on the wiring pattern.

  The second board 13 is a flat printed wiring board and is formed to be slightly smaller than the internal unit 11. The second substrate 13 is mounted on the opposite surface of the first substrate 12 on which the internal unit 11 is mounted. As shown in FIGS. 3 to 6, the second substrate 13 includes a through portion 131, a pair of connector portions 132, three light source positioning portions 133, and a pair of locking portions 134. The second substrate 13 is formed by injection molding.

  The penetrating part 131 is formed in a cylindrical shape so as to communicate with the drive shaft hole 120 of the first substrate 12 when the second substrate 13 is mounted on the first substrate 12, and the drive protruding from the first substrate The shaft 111 is penetrated, and the holding portion 115 of the internal unit 11 is fitted.

  As shown in FIG. 5, each connector part 132 has a standing part 132a, two fitting holes 132b, a pair of connector terminals 132c provided for each fitting hole 132b, and a conductor part 132d. is doing. The standing portion 132 a is formed so as to stand from the second substrate 13 in the protruding direction of the drive shaft 111. The fitting hole 132b is formed in a rectangular parallelepiped shape so as to penetrate from the second substrate 13 to the standing portion 132a.

  As shown in FIG. 6, the connector terminal 132 c includes a pair of sandwiching pieces 132 e and a connecting portion 132 f that couples the pair of sandwiching pieces. The pair of sandwiching pieces 132e face each other and are formed in a drum shape so as to narrow in a direction approaching each other at an arbitrary portion, and reliably contact the supply terminal 112 of the internal unit 11 inserted into each fitting hole 132b. Can be made.

  The connection portion 132f is provided with a stop portion 132h near the center thereof, and the stop portion 132h prevents the connector terminal 132c from being detached from the fitting hole 132b. Each clamping piece 132e has a convex dowel 132g, and the dowel 132g is fitted into the recess 132i of the fitting hole 132b, thereby preventing the fitting hole 132b from coming off.

  The conductor part 132d is provided so as to be interposed between the inner wall of the fitting hole 132b and the sandwiching piece 132e, and electrically connects the connector terminal 132c and the drive wiring pattern 122 of the first substrate 12 to each other. As provided on the surface of the second substrate. The conductor part 132d is three-dimensionally formed as an electric circuit on the surface of the second substrate 13 that is an injection-molded product by the MID (Molded Interconnect Device = injection-molded circuit component) technique that is a well-known technique. That is, the integration of the conductor part 132d and the second substrate 13 reduces the number of assembling steps.

  The light source positioning unit 133 includes a mounting part 133a that positions the LED 6 near the penetration part 131, and a light source wiring pattern 133b that electrically connects the LED 6 mounted on the mounting part 133a to the light source wiring pattern 123 described above. Have. The light source positioning unit 133 positions the LED 6 with respect to the drive shaft 111 so as to be within the range where the internal unit 11 is provided on the first substrate 12 and close to the through part 131. Therefore, since the LED 6 can be reliably arranged near the drive shaft 11, the luminance unevenness of the pointer 4 when the pointer 4 is rotated can be eliminated.

  The mounting portion 133a and the light source wiring pattern 133b are three-dimensionally formed as an electric circuit on the surface of the second substrate 13 by the MID technique, similarly to the driving wiring pattern 122 described above.

  The pair of locking portions 134 includes a base portion 134a standing from the second substrate 13 toward the first substrate 12, and a locking protrusion 134b provided at an end of the base portion 134a. When the second substrate 13 is mounted on the first substrate 12, the pair of bosses 135 provided on the back surface of the second substrate 13 are passed through the positioning holes 126 of the first substrate 12 so that the second substrate 13 is inserted. The second substrate 13 is positioned with respect to the first substrate 12, the locking portion 134 is passed through the second locking hole 125, and the locking projection 134 b is locked to the first substrate 12, whereby the second substrate 13 is locked to the first substrate 12. The second substrate 13 is mounted on the first substrate 12 while preventing it from falling off.

  In the present embodiment, the case where each connector portion 132 of the second substrate 13 has the standing portion 132a will be described. However, if it is possible to form a connector only with the thickness of the second substrate 13, It is not necessary to provide the standing portion 132a on the connector portion 132.

  Next, an assembly example of the pointer type display device 1 having the above-described configuration will be described below.

  First, in the first connection step, various electronic components 127 are mounted on the first substrate 12 with free solder. Then, the LED 6 is mounted on the light source positioning portion 133 on the second substrate 1 by free solder. That is, the three LEDs 6 are arranged near the penetration part 131. Thus, since the inner machine 11 is not yet mounted on the first substrate 12 and the second substrate 13, reflow soldering can be performed.

  In the next assembly step, when the inner unit 11 is mounted on one side of the first substrate 12 and the second substrate 13 is mounted on the other side, the drive shaft 111 of the inner unit 11 is moved to the second substrate 13. The supply terminal 112 is fitted and connected to the connector part 132 of the second substrate 13 through the through part 131. Then, as shown in FIG. 7, the driving wiring pattern 122 of the first substrate 12 and the conductor portion 132 d of each connector portion 132 of the second substrate 13, and the light source wiring pattern 123 and the light source wiring of the second substrate 13. The pattern 133 b is joined by the solder 20. As a result, the terminal 112 of the internal unit 11 and the drive wiring pattern 122 of the first substrate 12 are electrically connected via the connector part 132. Further, the LED 6 mounted on the second substrate 13 and the light source wiring pattern 123 are electrically connected. When the drive shaft 111 of the internal unit 11 is disposed behind the dial plate 3 and protrudes to the surface side of the dial plate 3, the pointer 4 is attached to the front end.

  The pointer-type display device 1 assembled in this way causes the LED 6 disposed near the drive shaft 111 of the internal unit 11 to emit light by the second substrate 13 in response to turning on the ignition switch of the vehicle or the like. The light emitted from the LED 6 enters the pointer main body 43 of the pointer 4 and is guided to the instruction unit 41 so that the instruction unit 41 shines. The pointer-type display device 1 rotates the pointer 4 by rotating the drive shaft 111 by a predetermined range by outputting a drive signal corresponding to the measurement amount of the speed sensor or the like to the internal unit 11. .

  According to the pointer type display device 1 described above, the LED 6 can be disposed near the drive shaft 111 of the internal unit 11 mounted on the first substrate 12 by the light source positioning unit 133 of the second substrate 13. Since the brightness unevenness of the pointer 4 when the pointer 4 is rotated can be eliminated, it is possible to prevent the driver from feeling uncomfortable. In addition, since the LEDs 6 can be arranged near the drive shaft 111, the number of LEDs 6 can be reduced, or the LEDs 6 with low luminance can be used, so that the cost can be reduced. Furthermore, since it is sufficient to mount the LED 6 on the second substrate 13, it becomes possible to use reflow solder or the like having a high melting temperature, and use tin-tin solder containing lead which is an environmental load substance. Therefore, it can easily cope with lead-free.

  Further, the second substrate 13 is formed by injection molding so that the locking portion 134 and the light source positioning portion 133 are integrated, and the second substrate 13 is mounted on the first substrate 12 by the locking portion 134. Therefore, since it is not necessary to mount a separate connector on the second substrate 13, it is not necessary to manage the perpendicularity of the separate connector with respect to the substrate as in the case where the separate connector is soldered and mounted. Work efficiency such as assembly work can be improved. In addition, since the circuit can be three-dimensionally arranged on the surface of the second substrate 13 by injection molding, the circuit connected to the connector part 132, the circuit connected to the LED 6 and the like can be arranged up to the back surface of the second substrate 13, By fixing the circuit of one substrate 12 with the latching portion, it is possible to ensure electrical conduction by pressing contact, and thus soldering can be eliminated.

  In the above-described best mode, the case where each fitting hole 132b of the connector portion 132 is formed in a rectangular parallelepiped shape has been described. However, the present invention is not limited to this, and various different embodiments may be used. it can.

  For example, as shown in FIGS. 8 to 10, each connector portion 132 may be a fitting hole 132 b ′ formed in a polygonal column shape. The fitting hole 132b 'is formed in a drum shape in cross section so as to narrow from each end toward the center thereof. That is, the narrowed portion functions as the above-described sandwiching portion. And since the connector part 132 is formed in the drum shape, since the part which goes to the center from the edge part of the inner wall becomes a taper part, even if the supply terminal 112 is bent a little or the taper part has arisen Thus, the supply terminal 112 can be guided to an appropriate clamping position. Further, since the conductor portion 132d is provided along the inner wall of the fitting hole 132b ', it can be reliably electrically connected to the supply terminal 112. In addition, the other structure of the connector part 132 is the same as what was mentioned above.

  In this way, by forming the fitting hole 132b ′ of the second substrate 13 into a polygonal column shape, the second substrate 13 is fixed to the standing portion 132a by insert molding at the time of injection molding, so that it does not fall off and is molded. There is no need to retrofit the supply terminal 112. In addition, since the cross section of the fitting hole 132b ′ is polygonal, if the supply terminal 112 is a round pin terminal, insertion is possible without increasing the insertion resistance during insertion, and the supply terminal 112 is Even if it is slightly bent, the supply terminal 112 is guided to an appropriate fitting position in the sandwiching portion by the drum-shaped taper portion, so that the sandwiching portion can be securely sandwiched and contacted.

It is a front view which shows an example of the meter for vehicles to which this invention is applied. It is a cross-sectional schematic diagram which shows the structure of the pointer type display apparatus of this invention. It is a disassembled perspective view of the pointer type display device of the present invention. It is a figure which shows the example of an assembly | attachment of the 1st board | substrate and 2nd board | substrate in FIG. It is sectional drawing of the connector part of the 2nd board | substrate in FIG. It is a perspective view which shows the external appearance of a connector terminal. It is a figure for demonstrating the joining example of a 1st board | substrate and a 2nd board | substrate. It is a perspective view which shows the other example of the connector part of a 2nd board | substrate. It is a top view of the connector part of the 2nd board | substrate in FIG. It is sectional drawing of the connector part of the 2nd board | substrate in FIG.

Explanation of symbols

1 Pointer-type display device 3 Dial 4 Pointer 6 LED (light source)
11 Internal unit (drive means)
12 First substrate 13 Second substrate 111 Drive shaft 112 Supply terminal 122 Drive wiring pattern 123 Light source wiring pattern 131 Through portion 132 Connector portion 133 Light source positioning portion

Claims (5)

In a pointer-type display device having a light guide pointer provided on the front side of the dial, and a light source provided behind the dial to shine the pointer,
Driving means for driving the pointer;
A drive wiring pattern that is provided behind the dial and on which the drive means is mounted and that transmits a drive signal of the drive means to the surface from which the drive shaft and supply terminal of the drive means protrudes and control of the light source A first substrate having a light source wiring pattern for transmitting a signal;
A second substrate provided on the opposite surface of the first substrate on which the driving means is mounted;
And having
The second board is electrically connected to the driving wiring pattern by fitting a through-hole through which the drive shaft protruding from the first board passes and the supply terminal protruding from the first board. And a light source positioning unit that positions the light source near the penetrating part and electrically connects the light source to the light source wiring pattern.   The second substrate has a locking portion for locking the second substrate to the first substrate, and the locking portion and the light source positioning portion are integrally formed by injection molding. The pointer-type display device according to claim 1.   The said light source positioning part positions the said light source in the said 2nd board | substrate so that it may become the vicinity of the said penetration part in the range in which the said drive means in the said 1st board | substrate was provided. The indicated pointer type display device.   The connector portion includes a polygonal columnar fitting hole for fitting the supply terminal, and a connector terminal having a holding portion that is provided along an inner wall of the fitting hole and holds the supply terminal. The pointer type display device according to any one of claims 1 to 3, wherein A method for manufacturing the pointer-type display device according to any one of claims 1 to 4,
Mounting the light source on the light source positioning portion of the second substrate by soldering;
The drive means is mounted on the first substrate, the drive shaft protruding from the first substrate protrudes from the through portion, and the supply terminal of the drive means protrudes from the first substrate and the connector portion. Mounting the second substrate on the first substrate so that the two are fitted and electrically connected;
A method for manufacturing a pointer-type display device, comprising:

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