JPH0531487U - Speaker stand - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] In a speaker stand, the front surface of the speaker box can be vertically rotated, and the front surface of the speaker box can be oriented in a desired direction. [Structure] The lower surface 10 of the pole insertion hole 8 of the speaker box mounting adapter 4 of the speaker stand 2 has an oval shape,
One inner side surface is perpendicular to the lower surface of the speaker box mounting adapter, and a first tap 11 is engraved on the side surface opposed to this to be perpendicular to the inner side surface, and this first tap is engraved. The inner side surface is formed at an angle θ with respect to the inner side surface, and a second tap 12 is engraved so as to be at a right angle to the inner side surface where the first tap is engraved on the inner surface facing each other. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a speaker box mounting adapter for mounting a speaker on a speaker stand.

[0002]

[Prior Art]

 FIG. 5A is a bottom view of a speaker box mounting adapter of a conventional speaker stand, and FIG. 5B is a vertical side view taken along line B1-B2 shown in FIG. 5A. As shown in (b), the pole insertion hole 17 of the speaker stand of the conventional speaker box mounting adapter 15 is formed in a cylindrical shape having almost the same diameter as the pole, and only one tap is provided on the cylindrical side surface. 19 is engraved, and the speaker box mounting adapter 15 is fixed to the pole of the speaker stand by inserting the upper end of the pole of the speaker stand into the hole 17 and screwing the fixing screw 16. Numeral 18 is a hole formed for inserting the speaker box mounting adapter 15 so that the speaker box can be screwed with the screw.

[0003]

[Problems to be solved by the device]

 By the way, according to the conventional structure as described above, since the pole insertion hole 17 is a cylindrical shape having substantially the same diameter as the pole, the adapter 15 is limited to the rotation only in the horizontal direction on the tip of the pole. Will be done. Also, although the height of the speaker box can be adjusted in the vertical direction by the pole of the speaker stand, the front of the speaker box cannot be tilted up and down by the speaker box mounting adapter. It was Therefore, for example, the floor surface is flat such as a gymnasium or auditorium, and the stage is located higher than the floor surface, or the floor surface is higher than the floor surface such as general halls and staircases, and the stage is located lower than the floor surface. In this case, the front of the speaker box could not be oriented arbitrarily in the direction of the listener (vertical direction), and the acoustic effect was poor.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention inserts the pole upper end of a speaker box mounting adapter for a speaker stand having a pole, the pole having an upper surface of a circular shape having substantially the same diameter as the pole and a lower surface of an elliptical shape. A hole for inserting a pole is formed from the lower surface of the speaker box mounting adapter, and a first tap and a second tap are formed in the longitudinal direction of the ellipse at right angles to the inner surfaces of the pole inserting hole which face each other. The present invention provides a speaker stand characterized by being engraved in each direction.

[0005]

[Action]

 With the above structure, the front surface of the speaker can be tilted not only horizontally but also upward and downward. Furthermore, by providing the first tap and the second tap, the speaker box can be fixed with the speaker box not only when the front of the speaker box faces the horizontal direction but also when the front of the speaker box faces upward or downward. Can be fixed.

[0006]

【Example】

 An embodiment of a speaker stand according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a side view showing an embodiment of the speaker stand of the present invention. FIG. 2 (a) is a bottom view showing an embodiment of the speaker box mounting adapter of the speaker stand of the present invention, and FIG. 2 (b) is a vertical sectional side view taken along line A1-A2 shown in FIG. 2 (a). It is a figure. FIG. 3 (a) is an explanatory view showing the main part when the front side of the speaker box is horizontally oriented using the speaker box mounting adapter of the speaker stand of the present invention, and FIG. 3 (b) is the speaker of the present invention. It is explanatory drawing which shows the principal part when the front of a speaker box is turned upward using the speaker box mounting adapter of a stand. 4 (a), (b), and (c) are explanatory views showing the relationship between the speaker box front surface direction and the direction in which sound is produced by changing the front surface of the speaker box horizontally, upward, or downward.

In FIG. 1, 1 is a speaker box, 2 is a speaker stand, 3 is a pole of the speaker stand 2, and 4 is a speaker box mounting adapter. In FIG. 2, 5 and 6 are fixing screws attached to the attachment adapter 4 for fixing the speaker box 1. Reference numeral 7 denotes a hole drilled for fixing the speaker box mounting adapter 4 to the lower surface of the speaker box 1 with a screw, and the speaker box mounting adapter has a screw inserted into the hole 7 Can be screwed to the bottom surface of 1. Reference numeral 8 is a pole insertion hole into which the upper end portion of the pole is inserted. Reference numeral 9 denotes an upper surface of the pole insertion hole 8, which has a circular shape having substantially the same diameter as the pole. Reference numeral 10 denotes the lower surface (inlet side) of the pole insertion hole 8, which is an ellipse elongated in the mounting direction of the screw, and the width dimension in the direction perpendicular to the longitudinal direction is substantially equal to the diameter of the pole. Reference numerals 11 and 12 are first and second taps facing the side surface of the pole insertion hole and formed on the inner side surfaces of the pole insertion hole 8 facing each other at right angles. Reference numeral 13 is an inner side surface of the pole insertion hole, which is perpendicular to the upper surface 9 and the lower surface 10 of the pole insertion hole 8, and 14 is an inner side surface opposed to the inner side surface 13 of the pole insertion hole. is there.

Next, referring to FIGS. 3 and 4, a procedure for making the front surface of the speaker box upward and downward by the speaker box mounting adapter of the speaker stand of the present invention will be described. In FIG. 3A, Xa is the front surface of the speaker box, and the speaker box mounting adapter 4 is screwed to the lower surface of the speaker box with the inner side 13 of the pole insertion hole facing the front Xa direction of the speaker box front surface. In this state, if the fixing screw 6 is screwed on the second tap 12, the pole upper end portion is fixed along the inner side surface 13, and the front surface of the speaker box can be fixed in the horizontal direction Xa. .. Further, in the same figure (b), the upper end portion of the pole is fixed along the inner side surface 14 by screwing the fixing screw 5 on the first tap 11 facing the second tap 12, The front surface of the speaker box can be fixed in the Xb direction which is upward by an angle θ 2 from the Xa direction in FIG.

4A and 4B show the same orientation of the front of the speaker box as in FIGS. 3A and 3B. In (c), the speaker box mounting adapter 4 is screwed to the lower surface of the speaker box with the inner side surface 14 side facing the speaker box front direction Xc. In this state, if the screw 5 is screwed to the first tap 11, the front surface of the speaker box can be fixed at Xc downward by an angle θ with respect to Xa. Further, in this state, if the screw 6 is screwed from the second tap 12, the front surface of the speaker box can be fixed in the Xa direction which is the same as the direction of FIG. 3A.

As described above, the front surface of the speaker box can be adjusted in three directions, that is, the horizontal direction, the upward direction, and the downward direction, depending on the mounting direction of the speaker box mounting adapter and which fixing screw is screwed. For example, when installing the speaker with the speaker stand of the present invention in a place where the floor surface is flat such as a gymnasium or an auditorium and the stage is higher than the floor surface, face down the speaker box. However, if the floor is stepped higher, such as in a general hall or a staircase classroom, and the stage is installed at a position lower than the floor, set the front of the speaker box up. good. It is needless to say that the direction of the front surface of the speaker box can be freely adjusted within the arbitrary angle θ by the screwing lengths of the screws 5 and 6.

[0011]

[Effect of the device]

 As described in detail above, according to the speaker stand of the present invention, the front direction of the speaker box can be freely adjusted, so that the front side of the speaker box can be oriented in a desired direction, and the clarity of sound and sound pressure can be improved. Uniformity can be improved. In addition, the structure is simple, so it can be manufactured at low cost, and it is functionally superior to the conventional speaker stand and is easy to use.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a speaker stand of the present invention.

FIG. 2 (a) is a bottom view showing an embodiment of a speaker box mounting adapter for a speaker stand of the present invention, and FIG. 2 (b) is taken along line A1-A2 shown in FIG. 2 (a). It is a vertical side view.

FIG. 3 (a) is an explanatory view showing a main part when the speaker box mounting adapter of the speaker stand of the present invention is used to make the front surface of the speaker box horizontal, and FIG. 3 (b) is a drawing showing the present invention. FIG. 9 is an explanatory diagram showing a main part when the front surface of the speaker box is directed upward using the speaker box mounting adapter of the speaker stand.

4 (a), (b), and (c) are explanatory diagrams showing the relationship between the speaker box front direction and the direction in which sound is produced by changing the front surface of the speaker box to horizontal, upward, and downward.

FIG. 5A is a bottom view of a speaker box mounting adapter of a conventional speaker stand, and FIG.
[Fig. 3] is a vertical sectional side view taken along line B1-B2 shown in Fig. 4A.

[Explanation of symbols]

1 ... Speaker box, 2 ... Speaker stand, 3 ... Pole, 4 ... Speaker box mounting adapter, 5, 6 ...
Fixing screw, 8 ... Pole insertion hole, 9 ... Pole insertion hole upper surface, 10 ... Pole insertion hole lower surface, 11 ... First tap, 1
2 ... 2nd tap, 13, 14 ... Inside surface of pole insertion hole.

Claims (1)

[Scope of utility model registration request] 1. A speaker box mounting adapter mounted on a lower surface of a speaker box for mounting a speaker box on a speaker stand having a pole, wherein the upper surface has a circular shape having substantially the same diameter as the pole and the lower surface has an oval shape. A pole insertion hole for inserting the pole upper end of the speaker stand is bored from the lower surface of the speaker box mounting adapter, and a first tap and a second tap are provided in the longitudinal direction of the ellipse relative to the pole insertion hole. A speaker stand characterized by being engraved in a direction perpendicular to the facing inner surface.