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JPH09200887

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DESCRIPTION JPH09200887
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
relative position adjusting device for adjusting an apparatus to be disposed at a predetermined
relative position to a user to the predetermined relative position. Examples of devices to which
the relative position adjustment device of the present invention is suitably applied include a
speaker, a display of a personal computer, a television, and the like.
[0002]
2. Description of the Related Art Since the location where the directional characteristic of the
speaker is the best is usually on the axis of the speaker, it is necessary to adjust the direction and
position of the speaker so that the user can listen to the voice on the axis of the speaker. .
[0003]
Further, even in a display or a television of a personal computer, it is possible to view an image
without distortion by adjusting the direction and position so that the cathode ray tube is
perpendicular to the user.
[0004]
However, conventionally, no means has been provided for adjusting the orientation or position of
these devices with respect to the user.
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1
[0005]
In the case where a very precise position adjustment is required, such as a gun, it is possible to
perform the position adjustment by providing two indicators such as a sights along a
predetermined direction and matching them. In the case of the device such as the speaker, the
display, and the television, it is sufficient if a rough position adjustment is performed to some
extent, and providing an index on the outer surface is disadvantageous both in design and cost.
[0006]
SUMMARY OF THE INVENTION It is an object of the present invention to solve the problems of
the prior art and to enable the position adjustment of these devices with a simple configuration.
[0007]
That is, the relative position adjusting device according to the present invention is for adjusting
an apparatus to be disposed at a predetermined relative position to the user to the
predetermined relative position, and a base on which the apparatus is fixedly disposed. The
connection means movably connected to it, the inclined surface of the device observed to be
inclined from the user, and the regular shape seen from the user when the device takes the
predetermined relative position And displaying means provided on the inclined surface.
[0008]
DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment in which the device of the
present invention is applied to a speaker will be described below with reference to the attached
drawings.
[0009]
The speaker 1 is a so-called multimedia speaker that reproduces an audio signal when, for
example, a CD-ROM is reproduced by connecting to a sound board of a personal computer.
[0010]
A Velcro (trade name: Velcro tape) is attached to the bottom of the leg 2 of the speaker 1, and the
leg 2 is used by being fixed to the side surface or the upper surface of the display of the personal
computer.
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In actual use, the L channel and the R channel are respectively reproduced using two speakers.
[0011]
The speaker 1 is connected to the leg 2 so as to be freely angularly displaceable by the ball joint
3, and after fixing the leg 2, the direction can be adjusted by moving the speaker 1 by hand.
[0012]
The illustrated speaker 1 has a shape in which the bottoms of two portions having a substantially
frusto-conical shape face each other and are joined.
[0013]
Generally speaking, a logo mark or name indicating a manufacturer's brand is displayed on the
speaker.
In the case of a speaker having a particularly illustrated shape, a logo mark or the like is often
displayed on a grill formed of punched metal, but the logo mark or the like is directly silkscreened on the grill in which a large number of holes are formed. Because it is difficult to do so,
usually a plate-like part printed with a logo or the like is separately manufactured and attached
to the grille.
[0014]
In the speaker 1, the logo 4 is silk-printed on one conical surface 5 directed to the user.
This eliminates the need for preparing a plate for logo marking as described above as a separate
part, which contributes to the reduction of the number of parts.
[0015]
The logo mark 4 is deformed and displayed on the conical surface 5 so that the vertical and
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horizontal dimensions become a normal ratio when the speaker 1 is viewed from the front (on
the axis).
In this modification, assuming that the inclination angle of the printing surface (conical surface)
5 with respect to the vertical plane Y orthogonal to the speaker axis X is θ, the regular logo
mark 4 is 1 / sin (90-θ) in the character height direction. It is done by expanding vertically.
[0016]
In the illustrated embodiment, since the printing surface on which the logo mark 4 is provided is
the conical surface 5, the character string of the logo mark 4 originally arranged in a straight line
is first enlarged in the vertical direction by the deformation ratio indicated by the above formula.
After that, each character is deformed in an arc shape toward the apex of the cone.
Therefore, the logo mark written on the speaker 1 is the one in which the logo mark 4 deformed
in an arc shape is projected on the conical surface 5.
[0017]
In the illustrated embodiment, θ = 77.25 degrees, and the expansion deformation ratio in the
vertical direction is 4.53 times based on the above equation.
[0018]
Here, since there are two human eyes, if the distance between the listener and the speaker is, for
example, 1 m or less and the distance between the human eyes can not be ignored is relatively
short, the transformation is made only by the above formula. When the logo mark is displayed,
the logo mark looks long in the height direction visually.
This is because the right eye and the left eye respectively view the logo obliquely when viewed
from a short distance, and the apparent height is increased.
In such a case, it is necessary to correct the enlargement ratio based on the above formula
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4
slightly smaller.
[0019]
When setting the speaker 1, the listener adjusts the position and the angle so that the logo mark
4 deformed and printed on the conical surface 5 looks like a regular shape.
As a result, the listener is positioned on the axis X of the speaker 1, and the reproduced sound
can be listened to at the place having the best directional characteristic.
[0020]
In the upper surface of the speaker 1, there are disposed a power amplifier switch of a power
amplifier provided inside the speaker, an on / off switch of a surround function, and an operating
means 6 such as a volume knob. These are directly related to the subject of the present
invention. Since it does not, detailed explanation is omitted.
[0021]
In the illustrated embodiment, the logo mark 4 as the display means for relative position
adjustment is displayed on the conical surface 5 which is inclined at θ = 77.25 degrees with
respect to the vertical surface Y.
In this way, displaying the display means on a surface which is relatively large (nearly horizontal)
inclined with respect to a plane perpendicular to the user causes a slight change in position and a
large change in shape. It is effective in accurately performing position adjustment.
[0022]
The present invention is not limited to the illustrated embodiment, but can be modified in various
ways within the scope of the invention described in the claims.
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5
The display means for relative position adjustment is not limited to the logo mark, as long as the
user can recognize the regular shape when the target device is placed at a predetermined relative
position. good.
For example, a figure deformed so as to be a perfect circle when viewed from the front can be
provided on the inclined surface.
[0023]
Further, the device to be subjected to relative position adjustment is not limited to the speaker
but may be a display of a personal computer or a television.
For example, in the case of a display of a personal computer, the display means for relative
position adjustment can be deformed and displayed on an inclined surface on the display with
respect to the operator on the display. The operator can view the image without distortion by
adjusting the relative position of the display to such a position and angle that the display means
looks like a regular shape.
[0024]
According to the present invention, in various devices such as speakers, displays of personal
computers, televisions, etc., which are desired to be arranged at predetermined relative positions
with respect to the user, the predetermined relative positions by a simple configuration. Can be
adjusted.
[0025]
Brief description of the drawings
[0026]
1 is a front view showing an embodiment in which the relative position adjusting device
according to the present invention is applied to a speaker.
[0027]
0026
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[0028]
2 is a top view of the same embodiment.
[0029]
0027
[0030]
3 is a side view of the same embodiment.
[0031]
0028
[0032]
Explanation of sign
[0033]
Reference Signs List 1 speaker 2 leg 3 ball joint 4 logo mark (display means) 5 conical surface
(inclined surface) 6 operation means X speaker axis Y vertical to the axis X angle θ angle of the
conical surface 6 to the vertical Y
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