JP4611945B2 - Speaker device - Google Patents

Description

  The present invention relates to a speaker device.

  Traditional speaker devices generally have a box-type cabinet with built-in speakers, but with that configuration, the vibration of the speakers affects the low-frequency complex waveforms such as musical sounds. It was difficult.

Therefore, the following speaker device has been proposed. That is, the speaker device has a substantially cylindrical shape in which a speaker unit including a diaphragm, a speaker frame that supports the diaphragm, and a weight that extends from the back of the speaker frame is erected via a support base. At the upper end of the cabinet part (speaker housing), a diaphragm is disposed so that the diaphragm faces upward, and a weight is suspended inside the cabinet part (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 2001-224089 (page 4, FIG. 1)

However, the above-described speaker device has the following problems.
That is, the above-mentioned support base for standing up the speaker device fixes three support members to the circular ring member so as to be evenly arranged, and the cabinet portion (speaker housing) rises from the floor (ground). Since the peripheral edge of the bottom of the cabinet (speaker housing) is locked as described above, the sound wave emitted from the opening on the bottom of the cabinet is directly affected by the floor material. It was. In other words, since the speaker device is placed on the floor surface made of various materials, the sound quality has changed depending on the material of the floor surface such as carpets, flooring, and tatami mats.

  Therefore, the present invention has been made in view of such a situation, and an object thereof is to provide a speaker device that can solve the above-described problems.

In order to achieve the above technical problem, the speaker device according to the present invention has taken the following technical means.
That is, the speaker device according to the present invention includes a substantially cylindrical cabinet in which a speaker unit including a diaphragm, a speaker frame that supports the diaphragm, and a weight that extends from the back of the speaker frame is erected. At the upper end of the cabinet part, the diaphragm is disposed so that the diaphragm faces upward, and the weight is suspended from the inside of the cabinet part, and sound is removed from the lower end part of the cabinet part. And a plurality of rib-shaped support portions projecting inward from a lower inner wall of the cabinet portion. are connected, the upper portion is positioned below the weight as the outer peripheral surface is continuous with the outer peripheral surface of the weights, so as to float the cabinet section, or , The upper surface of the lower together with the lower to be placed on the floor surface is formed so as to cover the floor surface is formed on the concave curve shape toward the outside, the lower portion of the cabinet part, formed on the concave curve shape It is characterized by being formed to spread outward along the lower upper surface of the leg portion .
The speaker device according to the present invention is the speaker device according to the present invention, wherein a lower portion of the leg portion is formed to be larger than a diameter of the cabinet portion and an outer peripheral portion of the lower portion thereof is substantially parallel to the floor surface. It is characterized by that .
The speaker device according to the present invention is the speaker device according to any one of the above inventions, wherein the lower part of the cabinet part is detachably fitted to the upper part of the cabinet part, and the leg part is attached to and detached from the upper leg part and the upper leg part. The upper leg part is formed integrally with the lower part of the cabinet part via the support part.

According to the present invention, the lower upper surface of the leg portion that erects the substantially cylindrical cabinet portion with the speaker portion attached to the upper end portion is formed in a concave curve shape so as to cover the floor surface and outward. Since the sound wave emitted from the opening on the bottom side of the cabinet part is always directed to the upper surface of the lower part of the leg part, the sound is smoothly removed in the horizontal direction. For example, floors such as carpets, flooring, and tatami mats Even if the surface material is different, the music can be enjoyed without changing the sound quality.
Also, by forming the lower part of the cabinet part so as to extend outward along the upper surface of the lower part of the leg part formed in a concave curved shape, the effect of the diffuser can be expected, and sound leakage can be made smoother. it can.

Next, an embodiment of a speaker device according to the present invention will be described with reference to the accompanying drawings.
As shown in FIGS. 1 and 2, the speaker device according to the present embodiment includes a speaker unit 1, a cabinet unit 2, and a leg unit 3.

  The speaker unit 1 includes a vibration plate 11, a substantially mortar-shaped speaker frame 12 that supports the vibration plate 11, a vibration unit 13 that includes a voice coil and a magnet and vibrates the vibration plate 11 based on an audio signal. And a substantially rod-like weight 14 that extends from the back surface of the speaker frame 12 and has a sound absorbing material attached to the outer peripheral surface thereof.

  The cabinet portion 2 is formed in a substantially cylindrical shape having both ends opened, and is detachably fitted so as to be continuous with the upper portion 21 having a sound absorbing material adhered to the inner surface thereof, and is formed in a concave curved shape. And a lower portion 22 formed so as to extend outward along the upper surface of the lower portion of the leg portion 3. The lower portion 22 is formed integrally with an upper leg portion 31 described later, and details thereof will be described later.

  A weight 14 is suspended from the upper end portion of the cabinet portion 2 erected by the leg portion 3 connected to the lower portion 22 of the cabinet portion 2 so that the diaphragm 11 faces upward and inside the cabinet portion 2. As described above, the speaker unit 1 described above is attached via an annular cushioning material.

  The leg 3 is composed of an upper leg 31 and a lower leg 32.

  The upper leg portion 31 is provided with a substantially circular outer peripheral portion 31a formed in a concave curved shape that gradually spreads outward in a downward direction, and an inward projecting from the inner wall of the outer peripheral portion 31a. The plurality of rib-shaped support portions 31b and the inner end portions of the support portions 31b are connected to the outer peripheral portion 31a formed in a concave curved shape and are spread outward and are flat. A top and a flat bottom surface are formed, and a central portion 31c having a substantially circular shape in plan view disposed at the axial center of the cabinet portion 2 is provided. Further, the outer peripheral portion 31a, the support portion 31b, and the central portion 31c are integrally formed so that the outer edge portion of the outer peripheral portion 31a is positioned above the bottom surface of the central portion 31c. In addition, you may integrally mold the outer peripheral part 31a in the concave curve shape which spreads outward the lower part 22 of the cabinet part 2 toward the downward direction. That is, it is only necessary that the side surface forming the opening on the lower side of the cabinet portion 2 has a concave curved shape that gradually spreads outward.

  The lower leg portion 32 is detachably screwed with the central portion 31c of the upper leg portion 31, and a concave curved upper surface continuous with the concave curved surface of the central portion 31c is formed, and a flat bottom surface is formed. It is formed in a substantially circular shape in plan view in which the installation bosses 32a are arranged so as to be equally distributed in the inside.

  The lower leg portion 32 has a diameter that is approximately 1.5 to 5 times larger than the outer peripheral portion 31a of the upper leg portion 31 or the diameter of the cabinet portion 2, and further, the outer peripheral portion of the lower leg portion 32 is a floor. It is formed in a horizontal shape so as to be substantially parallel to the surface G. That is, the continuous surface from the upper end portion of the center portion 31c of the upper leg portion 31 to the outer peripheral portion of the lower leg portion 32 is formed in a concave curved surface shape that extends from the vertical direction to the horizontal direction so as to cover the floor surface G. The outer peripheral portion 31a of the upper leg portion 31 is formed to extend outward over a required length so as to follow the surface thereof.

  As described above, in the speaker device according to the present embodiment, the leg portion 3 that erects the substantially cylindrical cabinet portion 2 with the speaker portion 1 attached to the upper end portion is formed so as to cover the floor surface G, and It is formed in a concave curved surface shape that changes from the vertical direction to the horizontal direction. With this configuration, the sound wave emitted from the opening on the bottom side of the cabinet portion 2 is always directed to the concave curved surface of the leg portion 3 and smoothly escapes in the horizontal direction. Therefore, for example, even if the materials of the floor G such as carpets, flooring, and tatami are different, it is possible to maintain a certain sound quality without being greatly affected by these materials.

And while forming the continuous surface from the upper end part of the center part 31c of the upper leg part 31 to the outer peripheral part of the lower leg part 32 in the shape of the concave curved surface which becomes a horizontal direction from a perpendicular direction so that the floor surface G may be covered, By forming the outer peripheral portion 31a of the upper leg portion 31 in a shape that spreads outward over the required length along the surface, the effect of the diffuser can be expected, and the sound omission can be made smoother. .
In addition, the leg 3 is composed of the upper leg 31 and the lower leg 32, and the lower leg 32 can be detached from the upper leg 31, so that it can be appropriately selected according to the installation space, improving convenience. ing.

  As mentioned above, although the speaker apparatus concerning this Embodiment was demonstrated, embodiment mentioned above shows an example of suitable embodiment of this invention, and this invention is not limited to it, The Various modifications can be made without departing from the scope of the invention.

It is a longitudinal cross-sectional view of the speaker apparatus concerning this Embodiment. It is a cross-sectional view along the XX line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Speaker part 11 Diaphragm 12 Speaker frame 13 Excitation part 14 Weight 2 Cabinet part 21 Upper part 22 Lower part 3 Leg part 31 Upper leg part 31a Outer peripheral part 31b Support part 31c Center part 32 Lower leg part 32a Installation boss G Floor surface

Claims (3)

A speaker unit having a diaphragm, a speaker frame that supports the diaphragm, and a weight extending from the back surface of the speaker frame is provided at the upper end portion of the substantially cylindrical cabinet unit. A speaker device configured to face upward and to be arranged so that the weight is suspended from the inside of the cabinet portion, and to be sound-extracted from a lower end portion of the cabinet portion. ,
A leg portion for raising the cabinet portion;
The legs, the connected to a plurality of rib-like support portion projecting from the lower inner wall toward the inside of the cabinet section, the weight of the upper portion so that the outer peripheral surface is continuous with the outer peripheral surface of the weight The lower part placed on the floor surface is formed so as to cover the floor surface, and the upper surface of the lower part is concavely curved outward. It is formed on,
A speaker device, wherein a lower portion of the cabinet portion is formed so as to extend outward along a lower upper surface of the leg portion formed in a concave curved shape .   The speaker device according to claim 1, wherein a lower portion of the leg portion is larger than a diameter of the cabinet portion, and an outer peripheral portion of the lower portion is formed to be substantially parallel to the floor surface. . The lower part of the cabinet part is detachably fitted to the upper part of the cabinet part,
The leg portion includes an upper leg portion, an upper leg portion thereof, and a detachable lower leg portion, and the upper leg portion is integrally formed with a lower portion of the cabinet portion via the support portion. The speaker device according to claim 1 , wherein the speaker device is a speaker device.

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