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JPS56113378

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Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JPS56113378
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external front view of the device of the
present invention, and FIGS. 2 and 3 are longitudinal sectional and perspective views of the main
parts of the device of the present invention, and FIG. These are the appearance front views which
abbreviate | omitted a part of this invention apparatus for demonstrating the change of a display.
2 ииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии Light guide plate , 23----lamp.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sound volume
display device such as a stereo, a radio, etc. in which the sound volume is displayed by the length
of the luminous body. (1) m "p 7 fi ? 9; . As a conventional volume display device such as stereo,
the indication mark of the volume knob soil is configured to indicate a scale disposed on the
front of the front panel along the moving direction of the polygon mirror. Of the most common.
However, this display device has a drawback that it can be easily viewed when viewed from a
distance or in a dark place. Therefore, recently, a sound volume display device has been
developed, in which a large number of light sources (mainly LED lamps) are disposed, and these
are sequentially erased according to the sound volume. This display device is uneconomical
because it uses a large number of light sources, but it is uneconomical because it has the
advantage of displaying with light, and because the correspondence between volume and display
is discontinuous, it displays subtle changes in volume. There was a serious drawback. The
present invention has been made to solve the disadvantages of the conventional products, and it
is an object of the present invention to provide a display device which can achieve continuous
volume display by light (2) +). Hereinafter, the present invention will be described based on the
drawings, showing an example in which the present invention is implemented as a car stereo
system. FIG. 1 is a front external view of a car stereo, where 1 is a light-shielding front panel, 2 is
a volume control knob rotatably attached to the front panel l, and 2a is a volume control knob.
The upper indication mark, 3 is an indication mark marked on the front panel 1, and 4 is a part
of the front panel ((open light transmission window. The display of the volume is performed
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through the light transmission window 4 as described later. 2 and 3 show the mechanical portion
of the present invention. A substrate 5 is attached to the back of the front panel 1 and has a
window 6 corresponding to the light transmitting window 4 of the front panel. The reference
numeral 7 denotes a rotating shaft connecting the volume control knob 2 and the gear 8.
Reference numerals 8a, 8b and 9a + 9b denote shutter plates each having a symmetrical shape.
The vertical width of each shutter plate is larger than the vertical width i of the window 6 of the
substrate, or (3) 2 '. The value of the six pairs, ie the sum of the widths of the plates 8a and 8b or
9a and 9b, is such that it is greater than half the length of the width of the window 6, ie 6a or 6b.
The shutter plate 8a is pivotally attached to the ends of the geared arm 11 and the arm 12
through the auxiliary arm 10, and the shutter plate 8b is pivotally attached to an intermediate
portion of the geared arm 11 and the arm 12.
The geared arm 11 is pivotally connected to the base plate 5 by a shaft 13 such that a gear
portion is always meshed with the gear 8 and the arm 12 is pivotally connected to the base plate
5 by J1114. The lines connecting the pivot points of the shutter plates 8a and 8b of the arms 11
and 12 and the substrate 5 are made to have equal lengths parallel to one another. The shutter
plate 9a is pivotally attached to the tips of the arm 16 and the arm 17 via the auxiliary arm 15,
and the shutter plate 9b is pivotally attached to the middle portion of the arms 16 and 17. (4) 7
The arms 16 and 17 are pivotally attached to the substrate 5 by the shafts 18 and 19,
respectively. The lines connecting the pivot points of the arms 16 and 17 with the shutter plates
9a and 9b and the substrate 5 are also parallel and of equal length. Further, one end of a
connecting arm 20 is pivotally connected to the other end of the arm 19 and the other end of the
connecting arm 20 is pivotally connected to the geared arm 11. As a result, the operation of the
arm 11 with gear is transmitted to the arm 17 or 21 is a light guide plate set behind the light
transmission plate 4 and the window 6 and is formed of a resin rich in light transmission such as
acrylic, For example, the curved surface side is a mirror surface, and the back surface side is ff11
hatching processing. On the back surface side of the light guide plate 21 (иии 2 is disposed with
the pastry reflection plate 22, and in the hole provided at the end of the light guide plate 21, the
lamp 23 for illumination is disposed. The light from the lamp 23 for illumination is uniformly
diffused to the front surface of the light guide plate 21 so that the front surface becomes a
uniform brightness surface, but the volume is displayed by appropriately blocking each of the /
lights board. . (F) (5) Constitutionally configuration 0 operation (и и и и will be described. Now,
when the volume control knob 2 is at a position where the indication mark 2a points to "MIN" of
the indication scale 3, the center of the window with the end plates in close contact with each
other at the center of the window 6 Since the cover is covered and the terminal plates 8b and 9b
cover both ends of the window 6, the light transmitting window 4 is displayed dark. Next, when
the volume adjusting knob 2 is rotated clockwise and the volume is gradually raised, the geared
arm 11 is rotated clockwise about the shaft 13 in FIG. As a result, the shutter plates 8a and 8b
move inward to the right. By this movement, the arm 12 is also rotated clockwise (but it is
pivoted by these two arms 11 and 12 so that the movement of the shutter plates 8a and 8b is
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always relative to the side wall of the window 6 of the substrate It is carried out so that the end
faces of the 7 gutter plate keep parallel.
On the other hand, the rotation of the geared arm 11 causes the arm 17 to rotate
counterclockwise about the shaft 19 via the connecting arm 20, whereby (6) ', 1z. And the
shutter plates 9a and 9b move to the left while keeping the parallel. Accordingly, the light guide
plate 21 is gradually removed from the central portion by the shutter plates 83 to 9b. When this
is observed from the front of the stereo, at first, a streak of light appears at the center of the
light-transmitting window 4, and in proportion to the rotation angle or volume of the volume
adjustment unit 1, it gradually becomes wider It looks like it spreads to both ends of the window.
(Fig. 4 ta + to Fig. 1 (b)) and when the indication mark 2a of the volume adjustment knob 2 is set
to "MAX" of the indication scale 3, the shutter plates 83 to 9b are completely substrate 5 as
shown in FIG. Is moved to a position not covering the window 6, and the entire surface of the
light transmitting window is displayed as a luminance surface. As shown in FIG. 4 (0) or more,
according to the sound volume display device of the present invention, the display of the sound
volume can be performed in the pattern of the bright band corresponding to t, and the sound
volume can be easily known even at night Because the correspondence relationship between the
volume and the display is always continuous, subtle changes in volume can also be visually
recognized in one growth, and the pattern of the bright band can be freely designed (C-buzzer (7)
in) It is also possible to increase the effect. In the above embodiment, the case of using a total of
four 7-jatter plates, two on the left and two on the left and right, was used in order to reduce the
storage space of the shutter plate. It is possible to use a total of two natter plates or a total of six
or more.
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