JP3442966B2 - Speaker mounting device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker mounting device used for a speaker externally attached to a monitor of a personal computer.

[0002]

2. Description of the Related Art In recent years, the performance of personal computers (hereinafter referred to as "PCs") in hardware and software has been remarkably improved with the development of an advanced information society. Multimedia-compatible PCs for integrated use have become widespread. Particularly with regard to voice information, improvement in volume and sound quality is required. Therefore, an external speaker system that can be connected to a monitor (display) of a PC in addition to a built-in speaker is becoming popular. For example, the total output of the amplifier is 15 W on the left and right, which enables connection of a speaker system capable of reproducing powerful deep bass and three-dimensional sound.

As a mode of externally attaching such a speaker, the speaker is directly installed on the table, is installed on the table via a bracket, is attached to the monitor via the bracket, and is provided with a support arm on the bracket. There are four possible modes of connecting the support arm to the monitor. When a bracket is used, it is preferable that the bracket is commonly used in any of the above-mentioned aspects (1) to (3), and therefore, the one generally formed in an L shape is common.

FIGS. 7 (a) and 7 (b) are views showing a speaker mounting structure in the case of being externally attached to a monitor using a conventional bracket. In the figure, 1 is a PC, 2 is a monitor (CRT), 3 is a speaker, and 4 is a bracket. When the speaker 3 is mounted, the bracket 4 is turned upside down to form an inverted L shape, which is hung on the upper corner of the monitor 2 and fixed by the double-sided adhesive tape 5. The speaker 3 is detachably attached to the bracket 4 by inserting an elastic engaging piece 6 provided on the back surface side into the engaging hole 7 of the bracket 4. However, angle adjustment is structurally impossible.

[0005]

As described above, in the conventional speaker mounting structure, the speaker 3 is directly fixed to the bracket 4 by the engagement of the engaging piece 6 and the engaging hole 7, and therefore the speaker is mounted. There was a problem that the mounting angle of 3 could not be changed freely.

As a speaker whose angle can be adjusted, for example, a so-called satellite speaker is known. However, the speaker 3 is mounted on the speaker stand 8 whose angle can be adjusted as shown in FIG. 8 and is mounted on the table 9, and cannot be mounted on the bracket 4 described above.

The present invention has been made in order to solve the above-mentioned conventional problems, and an object thereof is to make it possible to mount an angle adjustable device on an information device such as a monitor. It is an object of the present invention to provide a speaker mounting device that is easy to remove and enables stable and reliable mounting.

[0008]

In order to achieve the above object, a first invention has a substantially horizontal mounting surface and holds a speaker box main body on the mounting surface in an adjustable angle. It consists of a speaker stand and a speaker bracket that is detachably attached to an information device such as a monitor and detachably holds the speaker stand. The width of the speaker stand gradually decreases toward the rear end side toward the front end side. And a speaker mounting member that mounts a speaker on the stand plate so that the speaker can be adjusted in angle. A taper portion is provided on both side upper portions of the stand plate, and the speaker bracket is L-shaped. And a stand mounting portion that are orthogonal to each other by being formed into a shape, and the stand is mounted on the surface side of the stand mounting portion. A stand holding portion for fixedly holding the rate is provided, and the stand holding portion is provided with two projecting portions which are provided so as to be opposed to each other and whose front end side is wide and whose width gradually decreases toward the rear end side. And a stand groove formed between the protrusions and into which the stand plate is inserted so that the stand plate can be pulled out. The inner surfaces of the two protrusions facing each other are formed as slopes in close contact with the tapered portions of the stand plate. It is characterized by having done. In the first invention, the speaker stand holds the speaker so that the angle can be adjusted. The speaker bracket detachably holds the speaker stand. When the speaker is externally attached to the monitor of the PC, the speaker bracket is hooked on the upper corner of the monitor and fixed by a double-sided adhesive tape or the like. When installing and using the speaker on the table,
The speaker stand is removed from the speaker bracket,
It is placed on the table. The stand plate is inserted into the stand holding portion from the front or side, and when moved to the rear side, the stand plate bites into the stand holding portion by a wedge action. Therefore, a large frictional force can be obtained, and the stand plate can be stably and reliably fixed and held. When the speaker is attached to the side surface of the monitor, the fixing portion of the speaker bracket is fixed to the upper surface of the monitor, and the stand attaching portion is fixed to the side surface of the monitor. In this state, the two protrusions face each other in the vertical direction and sandwich the stand plate. Also, the slope of the protrusion and the taper of the speaker stand are in close contact with each other, and prevent the stand plate from falling off the stand holding part. When mounting the speaker on the upper surface of an electric device such as a monitor, the fixing portion of the speaker bracket is fixed on the side surface of the electric device, and the stand mounting portion is fixed on the upper surface. In this state, the two protrusions face each other in the left-right direction and sandwich the stand plate.

[0009]

[0010]

A second aspect of the invention is characterized in that, in the first aspect of the invention, a convex portion and a concave portion are provided on the sliding contact surfaces of the speaker stand and the speaker bracket to engage with each other to position and lock the speaker stand. To do. In the second invention, the concave portion and the convex portion are engaged with each other to position and lock the stand plate with respect to the speaker bracket,
Prevents the stand from coming off. Further, at this time, a click feeling is given to the hand to notify that the stand plate is securely attached to the stand holding portion. The sliding contact surface between the speaker stand and the speaker bracket is the lower surface of the stand plate and the surface of the speaker bracket, or the inner surface of the ridge and the side surface of the stand plate.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in detail based on the embodiments shown in the drawings. 1A and 1B are a schematic front view and a plan view showing a state in which a speaker is attached to a side surface of a monitor by using the speaker attaching apparatus according to the present invention, and FIG. 2 is a partially cutaway view of the speaker attaching apparatus. 3A, 3B, and 3C are plan views of the speaker stand, a side view and a front view in which a part is cut away, and FIG. 4 is a sectional view taken along line IV-IV of FIG. FIGS. 5A and 5B are views for explaining the assembly procedure of the angle adjusting mechanism, and FIG.
(A), (b), (c) is a front view of a speaker bracket, a side view, and an AA line expanded sectional view. 1 to 3, the speaker mounting device 20 includes a speaker stand 21 that holds the speaker 3 so that its angle can be adjusted, and a speaker bracket 22 that holds the speaker stand 21 so that it can be pulled out.

The speaker 3 has a box-shaped speaker box body 3A and a speaker box body 3
A speaker grill 3B covering the front opening of A and a loudspeaker (not shown) housed in the speaker box body 3A are provided. The speaker box body 3A is
Upper case 2 each made of synthetic resin
6 and a lower case 27, and these cases are integrally connected by a plurality of screws 28.

3 to 5, the speaker stand 21 is integrally formed of synthetic resin to form a substantially flat plate stand plate 23, and the speaker 3 is angled with respect to the stand plate 23. The speaker mounting member 37 is mounted so as to be adjustable.

Since the stand plate 23 has a substantially trapezoidal planar shape, the width at the front end side is maximum and decreases gradually toward the rear end side, and the upper surface forms the mounting surface 33 of the speaker box body 3A. is doing. Stand plate 2
Two bearing portions 23B, 23
B are integrally installed opposite to each other, and the rotating shaft 29 is attached to these bearing portions 23B.
Bearings 30 for axially supporting the respective ends of are fitted. A concave portion 35 for positioning and locking the stand plate 23 with respect to the speaker bracket 22 is formed in a widthwise central portion of the lower surface 34 of the stand plate 23 near the front end portion. The recess 35 may be either a through hole that penetrates the upper and lower surfaces of the stand plate 23 or a non-through hole that does not open on the upper surface. In the present embodiment, an example in which the recess 35 is formed by the through hole is shown. Both side surfaces of the stand plate 23 are curved in an arc shape with a large curvature so as to be convex outward, and an upper portion thereof forms a taper portion 36 which is inclined toward the center direction of the stand plate 23.

The two bearing portions 23B are formed into a cylindrical body which opens in the left-right direction with their axes aligned with each other, and together with the rotary shaft 29, the bearing 30, the speaker mounting member 37 fixed to the speaker 3, and the like. Angle adjustment mechanism 40 of speaker 3
Are configured. Further, the bearing portion 23B has an outer opening having a large diameter and an inner opening having a small diameter different diameter hole, and the outer opening is covered with the cover 41 after the rotating shaft 29 is attached.

The rotating shaft 29 is composed of a bolt, and the bearing 30, the spring washer 42, and the plain washer 43 are attached to the bearing portion 23B.
The nut 44 is inserted through and the nut 44 is screwed to prevent the nut 44 from coming off. Further, when the nut 44 is tightened to narrow the gap between the two bearing portions 23B and the bearing 30 is pressed against the cylindrical portion 37A of the speaker mounting member 37, the frictional force between these members increases and the speaker 3 is placed at an arbitrary angle. Settings can be retained. The rotation angle of the speaker mounting member 37 is 90 degrees as shown in FIG. 3B, and when it is rotated by the maximum angle forward, it becomes parallel to the stand plate 23.
When it is rotated backward by the maximum angle, it is in a state perpendicular to the stand plate 23. However, the speaker mounting member 37
The rotation angle of is not limited to 90 ° and can be set arbitrarily. The bearing 30 is formed into a cylindrical body, and the bearing portion 23
It is fitted into the inner opening of B.

The speaker mounting member 37 includes the cylindrical portion 37A into which the rotating shaft 29 is inserted, and the cylindrical portion 37.
And a plate-shaped fixing portion 37B integrally provided on the outer periphery of A. The fixing portion 37B is the speaker box body 3
It is fixed to the rear end portion of the lower surface of A by one screw 45 (see FIG. 2). Therefore, the work of attaching and detaching the speaker 3 to the speaker stand 21 is easy.

To assemble the angle adjusting mechanism 40, as shown in FIG. 5A, the bearing 30 is first fitted into each bearing portion 23B, and then the cylindrical portion 37A of the speaker mounting member 37 is fitted.
Is inserted between the two bearings 30. Next, as shown in FIG. 5B, the rotary shaft 29 is inserted into the bearing portion 23B, the bearing 30 and the cylindrical portion 37A through the spring washer 42 and the flat washer 43, and the nut 44 is screwed to the bearing portion 30. When the frictional force between the cylindrical portions 37A is set to a desired value, the assembly is completed. afterwards,
When the cover 41 is fitted into the outer opening of the bearing portion 23B as shown in FIG. 4 and the speaker box body 3A is fixed to the fixing portion 37B of the speaker mounting member 37 with the screw 45, the speaker 3 is attached to the speaker stand 21. be able to.

In FIG. 6, the speaker bracket 2
Reference numeral 2 is used when the speaker 3 is externally attached to the monitor 2. The speaker 2 is formed of synthetic resin in an L-shape when viewed from the front, and is composed of a fixing portion 22A and a stand attaching portion 22B which are orthogonal to each other. On the front surface side of the mounting portion 22B, there is provided a stand holding portion 50 for fixedly holding the stand plate 23 of the speaker stand 21 forward of the speaker bracket 22 so as to be drawn out. Both the fixing portion 22A and the stand attaching portion 22B are formed in a plate shape. The fixing portion 22A is fixed to the upper surface of the monitor 2 by a double-sided adhesive tape (not shown) when the speaker 3 is externally attached to the side surface of the monitor 2. At this time, the stand mounting portion 22B is also fixed to the side surface of the monitor 2 by the double-sided adhesive tape. On the other hand, when the speaker 3 is externally attached to the upper surface of the monitor 2, the fixing portion 22A is fixed to the side surface of the monitor 2 with the double-sided adhesive tape, and the stand mounting portion 22B is also fixed to the upper surface of the monitor 2 with the double-sided adhesive tape. Good. The fixing of the speaker bracket 22 with the double-sided adhesive tape is not limited to both the fixing portion 22A and the stand attaching portion 22B, and only one of them may be fixed when reliable fixing can be obtained.

The stand holding portion 50 is provided with two protruding portions 52, 52 which are provided so as to be opposed to each other in the width direction on the front surface side of the stand mounting portion 22B and whose front end side is wide and whose width gradually decreases toward the rear end side. And a stand groove 53 that is formed between the protrusions 52 and into which the stand plate 23 of the speaker stand 21 is inserted so as to be drawn out. The stand plate 2 is provided on the inner surfaces of the protrusions 52 that face each other.
Both side surfaces of 3 are in close contact with each other. Therefore, the inner surface of the protruding portion 52 is curved so as to be convex outward with substantially the same curvature as the side surface of the stand plate 23, and the upper end portion thereof is the tapered portion 36 of the stand plate 23 (see FIG. 3C). The inclined surface 54 is formed so as to incline inward at substantially the same inclination angle as the above. This prevents the stand plate 23 from coming out of the stand holding portion 50 in the plate thickness direction of the stand mounting portion 22B. Further, the convex portion 5 is provided near the front end of the front surface of the stand mounting portion 22B so as to correspond to the concave portion 35 (see FIG. 3B) provided on the lower surface side of the stand plate 23.
5 are integrally projected. Reference numeral 56 is a die hole for forming the protrusion 52.

In such a speaker mounting device 20, when the speaker 3 is installed on a table with its angle adjustable, the speaker bracket 22 is not required,
The speaker stand 22 may be placed directly on the table. In this state, the speaker 3 has the angle adjusting mechanism 4
It is freely adjusted by the 0 within the angle range of 90 ° from the horizontal state to the vertical state.

On the other hand, when externally attached to the side surface of the monitor 2, the speaker bracket 22 is hooked on the upper corner of the monitor 2 to fix the fixing portion 22A to the upper surface of the monitor 2 with the double-sided adhesive tape and the stand attaching portion. 22
Fix B to the side of monitor 2 with double-sided adhesive tape. However, if reliable fixation can be obtained, only the fixing portion 22A or the stand attaching portion 22B may be fixed with the double-sided adhesive tape. Next, the stand plate 23 of the speaker stand 21 is inserted into the stand holding part 50 from the front (or side) of the speaker bracket 22, and the lower surface 34 of the stand plate 23 is brought into close contact with the bottom surface of the stand groove 53. Plate 2
3 is moved rearward along the bottom surface of the stand groove 53 to cause both side surfaces of the stand plate 21B to bite into each protrusion 52 by a wedge action, and the tapered portion 36 of the stand plate 23 is inclined to the slope 54 of the protrusion 52. Close to. At this time, the convex portion 55 engages with the concave portion 35 so that the stand plate 2
3 is positioned and locked to the stand mounting portion 22B. Also,
By the engagement of the convex portion 55 and the concave portion 35, a click feeling is felt by the hand holding the speaker 3, and the stand plate 2
3 informs that it has been attached to the stand holding portion 50 at a predetermined position. As a result, the stand plate 23 can be stably and reliably fixedly held by the stand holding portion 50, and the stand plate 23 can be prevented from falling off the stand holding portion 50. FIG. 1 shows this state. In this state, the mounting angle of the speaker 3 is
The angle adjusting mechanism 40 causes the monitor 2 to have a lateral angle of approximately 90 °.
Adjusted freely within the range of.

The stand plate 23 is attached to the stand holder 5.
When mounting from the side of the monitor 2 with respect to 0, the stand plate 23 is shifted slightly forward of the stand holding portion 50, and in this state, the stand plate 23 is inserted between the two protruding portions 52 and the bottom surface of the stand plate 23 is inserted. 34
To the bottom of the stand groove 53, and then move the stand plate 23 rearward to move the stand plate 23
Both side surfaces may be pressed against the inner surface of the protrusion 52 by a wedge action in the same manner as described above. The mounting from the side is performed by forming the planer shape of the stand plate 23 so that the front end side is wide and the width gradually decreases toward the rear end side, and accordingly, the protrusion 52 is also wide on the front end side and rear end side. This is possible because the width is gradually reduced toward.

In the speaker mounting device 20 as described above, the speaker stand 21 can be attached to the speaker bracket 22 so that it can be pulled out from the front or the side, so that the speaker stand 21 can be easily attached and detached. In addition, the stand holding portion 50 uses the wedge effect to fix and hold the stand plate 23, and the concave portion 35 and the convex portion 55 allow the stand plate 23 to be held.
Since the speaker stand 21 is positioned and locked, the speaker stand 21 can be fixed and held in a stable state, and there is no risk of the speaker stand 21 coming off the stand holding part 50 due to vibration, impact, or the like.
Further, since the angle adjusting mechanism 40 is provided, the mounting angle of the speaker 3 can be freely changed not only when it is mounted on a table and used but also when it is externally attached to the monitor 2. Further, the speaker mounting device 2
The configuration of 0 is also simple. In addition, the speaker 3 can be easily attached to the speaker stand 21 because it can be attached with the single screw 45.

Although the speaker 3 is externally attached to the side surface of the monitor 2 in the above-described embodiment, the present invention is not limited to this. It can also be installed. In that case, as described above, the fixing portion 22A is made vertical and the speaker bracket 22 is hooked on the upper corner of the monitor 2,
Either the fixing portion 22A or the stand attaching portion 22B or one of them may be fixed to the monitor 2 with a double-sided adhesive tape. In addition, in the above-described embodiment, both side surfaces of the stand plate 23 and the protrusion 52 are convexly curved outward so that the front end side becomes wider and the width becomes narrower toward the rear end side to obtain a wedge effect. However, the same wedge effect can be obtained even if it is formed in a tapered shape. Further, the both side surfaces of the stand plate 23 do not necessarily have to be symmetrical. Further, in the above embodiment,
A positioning concave portion 35 is formed on the speaker stand 21 side, and a positioning convex portion 55 is formed on the speaker bracket 22 side.
Although the example in which the is provided is shown, the opposite may be possible. However, when the convex portion 55 is formed on the lower surface 34 of the speaker stand 21, it is preferable to provide three or four in consideration of stability when the speaker stand 21 is placed on a table and used. Further, the formation positions of the concave portion 35 and the convex portion 55 may be the side surface of the stand plate 23 and the inner surface of the protruding portion 52. The angle adjusting mechanism 40 may be provided not only on the rear end side of the speaker stand 21 but also on the front end side. Further, the invention is not limited to the friction type in which the angle can be adjusted steplessly, and the tilting mechanism can be used to adjust the angle stepwise. Further, in the above embodiment, an example in which the monitor is externally attached to the PC has been described.
It may be a device equivalent to a monitor.

[0027]

As described above, according to the speaker mounting apparatus of the present invention, the speaker is fixed and held by the wedge effect, so that the speaker can be fixed stably and reliably, and the speaker is prevented from falling off. can do. In addition, when using it by placing it on a table
Even when it is externally attached to a monitor or the like, the mounting angle of the speaker can be freely changed. Further, since the speaker stand is attached to the front of the speaker bracket so as to be able to be pulled out, it is easier to attach and detach than the attachment from above.

[Brief description of drawings]

1A and 1B are a schematic front view and a plan view showing a state in which a speaker is attached to a side surface of a monitor using a speaker attaching device according to the present invention.

FIG. 2 is a side view showing a part of the speaker mounting device in a cutaway manner.

3 (a), (b) and (c) are a plan view of a speaker stand, a side view and a front view with a part thereof cut away.

4 is a sectional view taken along line IV-IV of FIG.

5A and 5B are views for explaining an assembly procedure of the angle adjusting mechanism.

6 (a), (b) and (c) are a front view, a side view and an AA line enlarged cross-sectional view of a speaker bracket.

7A and 7B are a front view and an exploded perspective view showing a conventional mounting structure of a speaker.

FIG. 8 is a side view showing a speaker stand whose angle can be adjusted.

[Explanation of symbols]

1 ... Personal computer, 2 ... Monitor, 3 ... Speaker, 3A ... Speaker box body, 4 ... Bracket,
8 ... Speaker stand, 20 ... Speaker mounting device, 21
… Speaker stand, 22… Speaker bracket, 22
A ... Fixed part, 22B ... Stand mounting part, 23 ... Stand plate, 23B ... Bearing part, 29 ... Rotating shaft, 33 ... Mounting surface, 35 ... Recessed part, 36 ... Tapered part, 37 ... Speaker mounting member, 40 ... Angle adjustment mechanism, 50 ... Stand holder, 5
2 ... Projection, 53 ... Stand groove, 54 ... Slope, 55 ...
Convex part.

Continued front page       (56) Reference JP-A-7-177592 (JP, A)                 Actual Kaihei 2-4396 (JP, U)                 Actual exploitation Sho 56-77395 (JP, U)                 Actual Kaihei 2-74868 (JP, U)                 Actual development Sho 55-126017 (JP, U)

Claims (2)

(57) [Claims] 1. A speaker stand having a substantially horizontal mounting surface, on which a speaker box body is held so that its angle can be adjusted freely, and a detachable external attachment to an information device such as a monitor, The above
It consists of a speaker bracket that holds the speaker stand in a detachable manner.
The stand plate has a flat shape with its width gradually decreasing.
Speaker, and adjust the angle of the speaker on this stand plate.
The speaker mounting member to be installed at
By providing a taper portion on both side surfaces of the speaker plate and forming the speaker bracket in an L shape,
It consists of a fixed part and a stand mounting part that are orthogonal to each other.
Attach the stand plate to the front side of the stand attachment part.
A stand holding part that holds and holds it freely
The stand holders are projected to face each other and the front end side is wide.
Two projecting portions whose width gradually decreases toward the rear end side,
The stand plate formed between these protrusions is
The groove for the stand that can be inserted freely
The inner surfaces of the two protrusions that face each other are
The speaker mounting device is characterized in that the tapered portion of the speaker is formed on an inclined surface in close contact with the tapered portion . 2. The speaker mounting device according to claim 1, wherein the sliding surfaces of the speaker stand and the speaker bracket are attached to each other.
The convex and concave parts that engage with and position and lock the speaker stand.
Speaker mounting apparatus characterized in that a part.