JPH0557620U - Pointer type meter - Google Patents

Abstract

(57) [Abstract] [Purpose] In an analog pointer-type meter, it is possible to improve the visibility of the meter by allowing the viewer to see the scale in three dimensions without parallax. [Structure] A pointer-type meter is provided with a half mirror 9 provided at a predetermined angle with respect to a line-of-sight direction of a viewer, and a meter internal unit 1 provided on a rear surface side of the half mirror 9 when viewed from the viewer
And a pointer 3, a first dial 8 provided with a translucent scale 13 provided between the meter internal unit 1 and the pointer 3, and a first light source 12 for illuminating the dial 8 from the back surface. ,
A second dial 4 having a translucent scale 5 arranged symmetrically with respect to the first dial 8 with respect to the half mirror 9 and a second light source 10 for illuminating the dial 4 from the back side; The scale 13 of the first dial 8 and the scale 5 of the second dial 4 are designed to look three-dimensionally to the viewer when they are superposed by the half mirror 9.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a pointer-type meter, and more particularly to a pointer-type meter in which a scale indicated by a pointer looks three-dimensional to a viewer of the meter.

[0002]

[Prior Art]

 Conventionally, analog meters that display state quantities with pointers, such as speedometers and engine tachometers equipped in automobile combination meters, have been drawn by the driver or other observer at the tip of the meter pointer. The state quantity is determined by reading the graduated scale.

FIG. 5 shows a structure of a finger-needle type meter 40 such as a speedometer and a tachometer incorporated in a combination meter of an automobile. A pointer 3 is attached to the rotating shaft 2 of the meter internal unit 1 of the pointer type meter 40, and a dial 4 having a scale 5 is provided between the pointer 3 and the meter internal unit 1. ing.

In such a pointer-type meter 40, the scales 5 such as numbers and letters may be viewed three-dimensionally so that a viewer can easily read the scales 5 indicated by the hands 3.

FIG. 6 (a) shows an example of this three-dimensional display method, in which the scale 51 is provided with a wall thickness to make it convex. FIG. 6 (b) shows another example of the method of displaying the scales three-dimensionally. The main scale 52 is printed in a bright color, and the sub scale 53 is printed in a dark color to simulate. It is made to look three-dimensional.

[0006]

[Problems to be solved by the device]

 However, the method of forming the scales in a convex shape has a problem that the three-dimensional effect when viewed from the front is poor, and the method of making the scales look pseudo-stereoscopic by printing light and dark colors. 6 (b) requires a print cutout 54, which impairs the three-dimensional effect and requires high precision with respect to print misalignment, which is a general problem.

Therefore, according to the present invention, it is possible to improve the visibility of the meter because the scale of the pointer-type meter can be viewed three-dimensionally without any parallax to the viewer without requiring high precision such as printing misalignment. The purpose is to provide a formula meter.

[0008]

[Means for Solving the Problems]

 The pointer-type meter of the present invention which achieves the above-mentioned object is a pointer-type meter for indicating a scale that looks three-dimensional by a pointer attached to the rotary shaft of the internal unit of the meter, and is a predetermined meter with respect to the direction of the line of sight of the viewer. Of the half mirror, the meter internal unit and the pointer provided on the back side of the half mirror with respect to the viewer, and the light transmission provided between the meter internal unit and the pointer. A first dial on which a graduation having an optical property is formed, a first light source for illuminating the first dial from the back surface, and a mirror surface symmetrical to the first dial with respect to the half mirror. A second dial having a translucent graduation formed thereon, and a second light source for illuminating the second dial from the back side. The graduation and the first dial of the first dial are provided. The scale of the dial 2 is overlaid by the half mirror. When it is, it is characterized that you have become a design that looks three-dimensional when viewed from the viewer.

[0009]

[Action]

 According to the pointer-type meter of the present invention, the image of the scale of the second dial strikes the half mirror by the light from the second light source and is reflected in the direction of the line of sight of the viewer. The scale on the left looks like a virtual image on the back side of the half mirror. On the other hand, on the back side of this half mirror, the scale of the first dial is made into a real image by the light from the first light source and is visible to the viewer. As a result, the scale of the first dial and the scale of the second dial, which are in the mirror surface position with respect to the half mirror, are superposed by the half mirror near the pointer of the meter when the viewer looks at the meter. .. Since the virtual image graduation and the real image graduation are superposed on each other, the three-dimensional graduation is visible to the viewer.

[0010]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a side sectional view showing the construction of an embodiment of the pointer-type meter of the present invention, and the same components as those of the conventional example shown in FIG.

An inner unit 1 is provided at the rear of the meter case 6, and a rotation shaft 2 of the inner unit 1 is parallel to the line of sight 7 of a viewer of a meter (not shown). A pointer 3 is attached to the rotary shaft of the internal machine 1. Further, in this embodiment, a half mirror 9 is attached in front of the pointer 3 in the meter case 6 at an angle of 45 degrees. A transparent first dial 8 made of a transparent resin such as an acrylic resin is attached between the front surface of the inner unit 1 and the pointer 3. A slight gap is provided between the pointer 3 and the first dial 8, and the first dial 8 is provided with a first scale 13 such as letters and numbers by a transparent ink. Is printed, and black paint or the like that does not transmit light is applied to portions other than the first scale 13. Therefore, the inner unit 1 cannot be seen from the half mirror 9 side. Further, a first light source 12 such as an electric ball is provided in the meter case 6 on the back side of the first dial 8, and the light from the first light source 12 is formed on the dial 8. After passing through the scale 13, it passes through the half mirror 9 and reaches the viewer side.

Above the half mirror 9 and at a position mirror-symmetrical to the pointer 3 with respect to the half mirror 9, as with the first dial 8, a light-transmitting first transparent plate made of a transparent resin such as acrylic resin is used. A dial 4 of 2 is provided. That is, the second dial 4 is parallel to the line of sight 7. The second dial 5 is also printed with a second scale 5 such as letters and numbers with a translucent ink, and the portion other than the second scale 5 is coated with a black paint that does not transmit light. There is. Further, a second light source 10 such as a light bulb is provided in the meter case 6 on the back side of the second dial 4.

FIG. 2A is a numeral “20” showing an example of the first scale 13 formed on the first dial 8 by printing or the like. The first scale 13 on the first dial 8 is colored dark. FIG. 2 (b) shows an example of the second scale 5 formed on the second dial 4 by printing or the like. As shown in FIG. It is almost at a mirror image position with respect to the mirror mirror 9. The second scale 5 is colored in a bright color, and is a left-right reversed character so that the second scale 5 looks like a normal rotation after being reflected by the half mirror 9. Then, the second scale 5 on the second dial 4 forms a virtual image at the correct position with respect to the meter pointer 3, and the first scale 13 on one side is the third scale (a). As shown in FIG. 5, when it overlaps with the second scale 5, it is formed on the first dial 8 so as to be slightly shifted to the lower right side with respect to the second scale 5.

In the pointer-type meter configured as described above, when the second light source 10 is turned on, the second scale 5 on the second dial 4 is reflected on the half mirror 9, as shown in FIG. 3 (b). As shown, it becomes a virtual image 11 and appears at the position A of the pointer 3. Since this virtual image 11 is substantially on the same plane as the pointer 3, there is no gap between the pointer 3 and the virtual image 11 of the scale 5, and there is no parallax in reading the scale 5 depending on the direction of the line of sight of the viewer. On the other hand, when the first light source 12 is turned on, the first scale 13 on the first dial 8 becomes a real image and appears behind the pointer 3 as shown in FIG. 3 (b). Therefore, as shown in FIG. 2, the second scale 5 is formed in a bright color and the first scale 13 is formed in a dark color so that the viewer can see the first scale 13 as if it were the second scale. It looks like the shadow of the scale 5 and gives a three-dimensional effect.

Note that it is not necessary to provide the scale 13 on the first dial 8 for all of the scales 5 on the second dial 4, and it is possible to correspond to large numbers or characters indicating the delimiter of the state. The scale 13 may be provided only on the first dial 8 and can be selected. Further, when the three-dimensional effect is not necessary, if the first light source 12 provided behind the first dial 8 is turned off, only the second scale 5 is used as a pointer as shown in FIG. 3 (c). It is also possible to copy in the vicinity of 3. At this time, a light emitting diode, a cold cathode tube or the like may be used as the light emission of the pointer 3 in addition to the light bulb. Further, as the three-dimensional display, in addition to the difference in color described above, it is also possible to use brightness of brightness. In this case, the second light source 10 may be brightened and the first light source 12 may be darkened.

In the above-described embodiment, the case where the pointer 3 is provided in the direction perpendicular to the line of sight 7 of the viewer has been described. However, in FIG. 4, the pointer 3 and the dial 8 behind it are in line of sight 7. The meter case 6 is configured so as to be inclined by an angle θ, and the same components as those in FIG. 1 are designated by the same reference numerals. In this case, the dial 4 need only be tilted by the same angle θ with respect to the half mirror 9 so as to be mirror-symmetrical to the pointer 3, and the other structure is exactly the same as that of the embodiment of FIG.

Also according to this embodiment, the same effect as that of the above-described embodiment can be obtained, and in particular, the mounting angle of the inner unit 1 can be freely set. Further, the half mirror 9 may be a light control film (LCF) having a louver angle of 45 degrees. Further, it goes without saying that the mounting angle of the half mirror 9 is not limited to 45 degrees.

[0019]

[Effect of the device]

 As explained above, according to the pointer-type meter of the present invention, the scale of the pointer-type meter can be viewed stereoscopically without any parallax to the viewer without the need for high accuracy such as printing misalignment and the visual confirmation of the meter. There is an effect that the property can be improved.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a configuration of an embodiment of a pointer-type meter of the present invention.

2 (a) is an example of the first scale of the pointer-type meter of FIG. 1,
(b) is an explanatory view showing an example of the second scale.

3A and 3B are views for explaining the function of the pointer-type meter of FIG. 1, where FIG. 3A is an explanatory view showing an overlapping state of the first and second scales, and FIG. FIG. 6C is a diagram illustrating a state of a scale that is viewed by a viewer in the vicinity of a pointer when the first light source is turned off.

FIG. 4 is a side sectional view showing the configuration of another embodiment of the pointer-type meter of the present invention.

FIG. 5 is a side view showing the configuration of a conventional pointer-type meter.

6A and 6B are diagrams for explaining a conventional three-dimensionally visible scale, where FIG. 6A is a perspective view showing a scale having a wall thickness, and FIG. 6B is a view showing a scale having a shade printed thereon.

[Explanation of symbols]

 1 Inner machine 2 Rotating shaft 3 Pointer 4 Second dial 5 Second scale 6 Meter case 7 Line of sight 8 First dial 9 Half mirror 10 Second light source 11 Virtual image 12 First light source 13 First scale

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location G02B 27/22 9120-2K

Claims (1)

[Scope of utility model registration request] 1. A pointer-type meter for indicating a three-dimensional scale by a pointer attached to a rotating shaft of an internal unit of the meter, the half-mirror being provided at a predetermined angle with respect to a line-of-sight direction of a viewer. And a meter-internal unit and a pointer provided on the rear surface side of the half mirror for a viewer, and a translucent scale provided between the meter-internal unit and the pointer. A first dial, a first light source for illuminating the first dial from the back, and a translucent scale arranged mirror-symmetrically to the first dial with respect to the half mirror. A second dial formed and a second light source for illuminating the second dial from the back surface are provided, and the scale of the first dial and the scale of the second dial are the half mirrors. When the two are superposed by the Pointer-type meter, characterized in that it has become to obtain design.