JP4904010B2 - Meter with scale ring - Google Patents

Description

  The present invention relates to an instrument having a scale ring member attached to a dial, and more particularly, to an instrument having a scale ring member having a solid scale that is colored with a predetermined color.

  2. Description of the Related Art Conventionally, a meter mounted on an automobile has been proposed in which a scale ring member having a three-dimensional scale is attached to a dial (hereinafter also referred to as a scale ring-equipped meter). FIG. 6 is a perspective view showing a main part of a meter with a scale ring conventionally proposed. FIG. 7 is a cross-sectional view corresponding to the main part shown in FIG. FIG. 8 is a top view for explaining a conventional problem.

  The main part of a meter with a scale ring as shown in FIG. 1 to be described later has been conventionally shown in FIGS. The scale ring-equipped instrument is assumed to be an analog engine tachometer for automobiles, for example, and includes a substrate 5 on which the scale ring member 1, dial 2, light guide plate 4 and light source 51 are mounted. The scale ring member 1 is provided with a three-dimensional scale 11 having a top surface portion 111 and a side surface portion 112 so as to improve visibility and appearance. In particular, the top surface portion 111 of the three-dimensional scale 11r corresponding to the red zone is colored in red after being mirror-finished.

  On the black base color dial 2, a scale 21 represented by numerals is formed. On the back surface of the dial plate 2, a light guide plate 4 that guides light from the light source 51 is disposed on the back surface of the dial plate. Further, a substrate 5 is disposed apart from the light guide plate 4. The substrate 5 is mounted with a motor for rotating the pointer, other electronic components, a light source 51 and the like. The light source 51 supplies predetermined light to the scale ring member 1, the light guide plate 4, the pointer, and the like.

  As shown in FIG. 7, the acrylic resin scale ring member 1 including the three-dimensional scale 11r includes a blue clear layer 81 as a primer layer, a silver layer 82 as a vapor deposition layer, and a mat clear layer 83 as a top coat layer. Are formed in this order. These three layers constitute the opaque layer 8, and only the top surface portion 111 of the solid scale 11r corresponding to the red zone is scraped until the opaque layer 8 reaches the acrylic, and only the surface thereof is mirror-finished. Is done. Then, pad printing of the red ink 91 is performed on the top surface portion 111 of the three-dimensional scale 11r corresponding to the mirror-finished red zone using the pad printer 9.

Note that prior art document information relating to the invention of this application includes the following.
JP-A-10-240179

  However, according to the configuration as described above, the red ink 91 does not satisfactorily ride on the top surface portion 111, and the clear surface a (part of the mirror-finished top surface) remains as shown in FIGS. It often ends up. That is, the red layer 92 having an irregular contour is often formed. In such a state, when the light source 51 is turned on at night or the like, as shown in FIG. 7, the red layer 92 having an irregular outline is emphasized and visually recognized by a driver or the like. If it does so, it will deteriorate in appearance and at the same time visibility.

  Therefore, in view of the present situation described above, an object of the present invention is to provide a meter with a scale ring that can improve the appearance and visibility of a solid scale with a simple configuration.

The meter with a scale ring according to claim 1, which has been made to solve the above-mentioned problem, is colored with a predetermined color that is attached to a dial and has a light guide scale ring member and is projected from the scale ring member. A scale ring, and a light source disposed at a distance from the scale ring member on the back surface side of the scale ring member, and a meter with a scale ring, between the back surface of the solid scale and the light source It has the translucent sheet | seat member which has the translucent color arrange | positioned and the same color as the said predetermined color , It is characterized by the above-mentioned.

  According to invention of Claim 1, between the back surface of the solid scale projected by the scale ring member which has light guide property, and a light source, the translucency which has translucency with the same color as coloring of a solid scale A sheet member is arranged. For this reason, even if the solid scale is incompletely colored, it can be made inconspicuous when the light source is turned on.

  The instrument with a scale ring according to claim 2, which is made to solve the above-mentioned problem, is the instrument with a scale ring according to claim 1, wherein the solid scale has a contour clarified by an opaque color of a side surface, It has the top | upper surface part colored with a predetermined color, It is characterized by the above-mentioned.

  According to the invention described in claim 2, the outline of the top surface portion of the solid scale is clarified by the opaque color of the side surface. For this reason, when the light source is turned on, the clarified contour is more conspicuous than the incomplete coloring of the top surface portion.

  The instrument with a scale ring according to claim 3, which has been made to solve the above-mentioned problem, is the instrument with a scale ring according to claim 1 or 2, wherein the solid scale is in a red zone of an analog engine tachometer. It is a corresponding scale, The said translucent sheet | seat member is carrying out the shape corresponding to the said red zone, It is characterized by the above-mentioned.

  According to invention of Claim 3, since the translucent sheet | seat member is carrying out the shape corresponding to a red zone, there is no waste in a member.

  The meter with a scale ring according to claim 4, which is made to solve the above-mentioned problem, is the meter with a scale ring according to claim 1, wherein the dial and the light source are arranged between the dial and the light source. And a light guide plate provided with a fixing portion that guides light from the light source to the back surface of the dial and fixes the translucent sheet member to a predetermined position on the back surface of the solid scale. Features.

  According to invention of Claim 4, the light-guide plate which guides the light from a light source to the dial back surface is equipped with the fixing | fixed part which fixes a translucent sheet | seat member to the predetermined position of the back surface of a solid scale. For this reason, the number of parts is not increased.

  According to invention of Claim 1, between the back surface of the solid scale projected by the scale ring member which has light guide property, and a light source, the translucency which has translucency with the same color as coloring of a solid scale A sheet member is arranged. For this reason, even if the solid scale is incompletely colored, it can be made inconspicuous when the light source is turned on. Therefore, the appearance and visibility of the solid scale can be improved with a simple configuration.

  According to the invention described in claim 2, the outline of the top surface portion of the solid scale is clarified by the opaque color of the side surface. For this reason, when the light source is turned on, the clarified contour is more conspicuous than the incomplete coloring of the top surface portion. Therefore, the appearance and visibility of the solid scale can be further improved.

  According to the invention described in claim 3, an analog engine tachometer having a red zone with good appearance and visibility can be obtained. Moreover, since the translucent sheet | seat member has the shape corresponding to a red zone, there is no waste in a member and the solid scale corresponding to a red zone can be illuminated efficiently.

  According to invention of Claim 4, the light-guide plate which guides the light from a light source to the dial back surface is equipped with the fixing | fixed part which fixes a translucent sheet | seat member to the predetermined position of the back surface of a solid scale. For this reason, the instrument with a scale ring which has the above-mentioned effect can be obtained without unnecessarily increasing the number of parts.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a part of a meter with a scale ring according to an embodiment of the present invention. FIG. 2 is a perspective view showing a main part of a meter with a scale ring according to an embodiment of the present invention.

  As shown in FIGS. 1 and 2, the instrument with a scale ring of the embodiment is assumed to be, for example, an analog engine tachometer for automobiles, and the scale ring member 1, dial 2, red zone sheet 3, light guide plate 4. And the substrate 5 on which the light source 51 is mounted. A motor (not shown) rotates by a predetermined amount in accordance with a measurement value by the rotation sensor, and a pointer 22 attached to the rotation shaft of the motor rotates on the dial plate 2, and is a number formed on the dial plate 2. The indicated scale 21 and the solid scale 11 of the scale ring member 1 are indicated. The dial 2 has a black base color and is formed with a scale 21 represented by numerals. For example, a red hot stamp layer is formed on the lower surface of the pointer 22, and the pointer 22 is visually recognized as shining in this color.

  The scale ring member 1 is made of smoke-based acrylic having light guiding properties and basically has an annular shape, but the mounting portion 13 used when fixing to the meter body is also integrally formed. Yes. The scale ring member 1 is attached so that the scales 11 and 21 are aligned with each other so as to slightly protrude from the front surface side of the dial 2. The scale ring member 1 is provided with a plurality of large and small solid scales 11 at regular intervals. The three-dimensional scale 11 includes a rectangular or ship-shaped flat top surface portion 111 and a side surface portion 112 connected to the top surface portion 111. As will be described later, the top surface portion 111 and the side surface portion 112 are each colored (for example, printed) with a predetermined color.

  The top surface portion 111 is mirror-finished after an opaque layer is formed together with other portions of the scale ring member 1 including the side surface portion 112 and then the opaque layer is removed. Alternatively, the top surface portion 111 is masked and an impermeable layer is formed in other portions. However, after that, only the top surface portion 111 of the solid scale 11r corresponding to the red zone is coated with a red colorant. More preferably, the colorant is fluorescent red.

  On the back side of the solid scale 11r corresponding to the red zone, a red zone sheet 3 is disposed as a translucent sheet member. The red zone sheet 3 is a resin plate having a translucent color, for example, the same color as the colorant of the solid scale 11r. The red zone sheet 3 has a shape corresponding only to the red zone. Specifically, the width W is substantially the same as the width of the ring member 1 and the middle portion between the numbers “6” and “7”, which are red zones. -It has a length corresponding to the numeral "8". Since the red zone sheet 3 has a shape corresponding to the red zone, the members are not wasted and the solid scale 11r corresponding to the red zone can be efficiently illuminated.

  The red zone sheet 3 is also provided with a positioning hole 31. The positioning hole 31 is inserted into a positioning pin 41 (corresponding to a fixing portion in claims) protruding from the light guide plate 4, and the red zone sheet 3 is fixed at a predetermined position on the back side of the solid scale 11r. Of course, the light guide plate 4 also plays the original role of guiding the light from the light source 51 to the back surface of the dial plate 2. Thus, since the light guide plate 4 that guides the light from the light source to the back surface of the dial plate has the positioning pins 41 that fix the red zone sheet 3 at a predetermined position, the number of parts is not increased unnecessarily.

  A substrate 5 is disposed apart from the light guide plate 4. As is well known, the substrate 5 is mounted with a motor for rotating the pointer 22, other electronic components, a light source 51, and the like. The light source 51 is, for example, an LED (light emitting diode) that emits white light, and supplies predetermined light to the scale ring member 1, the light guide plate 4, the pointer 22, and the like.

  Subsequently, a supplementary explanation and operational effects of the above configuration will be described with reference to FIGS. 3 and 4. 3 is a cross-sectional view corresponding to the main part shown in FIG. FIG. 4 is a top view for explaining the effect of the embodiment of the present invention.

  In FIG. 3, the acrylic scale ring member 1 including the three-dimensional scale 11r has three layers of a blue clear layer 81 as a primer layer, a silver layer 82 as a vapor deposition layer, and a mat clear layer 83 as a top coat layer. It is formed in order. These three layers constitute the impermeable layer 8. After that, only the top surface portion 111 of the three-dimensional scale 11r corresponding to the red zone is scraped until the opaque layer 8 reaches the acrylic, and only the surface thereof is mirror-finished. Thereby, the outline of the top | upper surface part 111 is very clear.

  Next, pad printing of the red ink 91 is performed on the top surface portion 111 of the three-dimensional scale 11r corresponding to the mirror-finished red zone using the pad printer 9. According to this pad printing, as described above, the red ink 91 does not get on well and the clear surface b (part of the mirror-finished top surface) often remains. That is, a red layer 92 having an irregular outline is formed.

  However, when the light source 51 is turned on, the white-colored emitted light changes to the red color via the light guide plate 4 and the red zone sheet 3 and reaches the back side of the solid scale 11r. Then, the clear surface b changes to a red color system, and the contour of the red layer 92 that is irregular becomes inconspicuous as shown in FIG. 4, and instead, the clear contour of the red top surface portion 111 becomes conspicuous. .

  It is more preferable to adjust the width W of the red zone sheet 3 so as to cover the visual field range of a driver or the like as indicated by f in FIG.

  FIG. 5A and FIG. 5B are cross-sectional views for explaining a modification of the above embodiment. 5A and 5B schematically depict the cross-sectional view of FIG.

  That is, as shown in FIG. 5A, when the impermeable layer 8 is formed on the side surface portion 112 of the three-dimensional scale 11, the red zone sheet 3 defines the outline of the red top surface portion 111 as described above. As shown in FIG. 5 (B), the red zone sheet 3 can also be used for the side surface even when the impermeable layer 8 is not formed on the side surface portion 112 in addition to the top surface portion 111 of the solid scale 11. It is possible to prevent the light source color from leaking as it is from the portion 112.

  As described above, according to the embodiment of the present invention, the red color printed on the solid scale 11r between the light source 51 and the back surface of the solid scale 11r projecting from the scale ring member 1 having light guide properties. A red zone sheet 3 having the same color as the ink 91 is disposed. For this reason, even when printing with the red ink 91 is incomplete, this can be made inconspicuous when the light source is turned on. Therefore, the appearance and visibility of the three-dimensional scale 11r can be improved with a simple configuration.

  In addition, the meter of this invention is not limited to the engine tachometer for motor vehicles, The other instrument of the same structure is also included.

It is a perspective view which shows a part of meter with a scale ring which concerns on one Embodiment of this invention. It is a perspective view which shows the principal part of the meter with a scale ring which concerns on one Embodiment of this invention. It is sectional drawing corresponding to the principal part shown in FIG. It is a top view for demonstrating the effect by embodiment of this invention. FIG. 5A and FIG. 5B are cross-sectional views for explaining a modification of the above embodiment. It is a perspective view which shows the principal part of the meter with a scale ring proposed conventionally. It is sectional drawing corresponding to the principal part shown in FIG. It is a top view for demonstrating the conventional problem.

Explanation of symbols

1 Scale ring member 2 Dial 3 Red zone sheet (translucent sheet member)
4 Light guide plate 5 Substrate 8 Impervious layer 41 Positioning pin (fixed part)
51 Light source 92 Red layer

Claims (4)

A scale ring member having a light guide property, attached to the dial,
A solid scale that is projected on the scale ring member and colored with a predetermined color;
A light source disposed on the back side of the scale ring member and spaced from the scale ring member;
An instrument with a scale ring having
A translucent sheet member disposed between the rear surface of the three-dimensional scale and the light source and having translucency in the same color as the predetermined color ;
A meter with a scale ring, characterized by comprising: The meter with a scale ring according to claim 1,
The solid scale is
Having a top surface portion colored with the predetermined color, whose outline is clarified by the opaque color of the side surface,
An instrument with a scale ring. In the meter with a scale ring according to claim 1 or claim 2,
The solid scale is
A scale corresponding to the red zone of an analog engine tachometer,
The translucent sheet member is
It has a shape corresponding to the red zone,
An instrument with a scale ring. In the meter with a scale ring as described in any one of Claims 1-3,
A fixing portion is provided between the dial and the light source, guides light from the light source to the back of the dial, and fixes the translucent sheet member to a predetermined position on the back of the solid scale. Light guide plate,
A meter with a scale ring, further comprising:

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