JPH0716491U - Speaker box - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent chattering due to vibration of the molded front panel and wooden box. [Structure] The necessary number of nail-shaped pins 1b are integrally molded in the fitting portion of the molded front panel 1, and the molded front panel 1 is put in a wooden box 2
The nail-shaped pin 1b when assembled in the
Make it difficult to insert, and molded panel 1 and wooden box 2 when vibration occurs
To oscillate synchronously.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a speaker box for audio equipment.

[0002]

[Prior art]

 In recent years, speaker boxes are required to have a novel design, and thus three-dimensional curved surfaces are often used for the front panel. In particular, this is remarkable in small speaker boxes, and for the front panel having such a three-dimensional curved shape, it is mainstream to use a resin molded product that is easy to mold and is inexpensive.

Since the molded front panel is thin and easily resonates, and the resonant frequencies of the molded front panel and the wooden box are different, when the speaker emits sound, the molded front panel and the wooden box vibrate differently. There was a chattering between the two at the joint surface of. For this reason, conventionally, chattering has been prevented by attaching a foam sheet such as sponge rubber to the joint surface between the molded front panel and the wooden box.

An example of the above-described conventional speaker box will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view of a conventional speaker box. 2 is a box-shaped wooden box made of particle boards, 1 is a poly box fitted and attached so as to cover the front opening of the wooden box 2. A molded front panel 3 made of resin such as styrene is a wood screw for fixing the molded front panel 1 to the wooden box 2 after fitting the molded front panel 1.

FIG. 4 is a perspective sectional view of a main part of a molded front panel of a conventional speaker box, and FIG. 5 is a perspective sectional view of a main part of a conventional speaker box wooden box. In FIG. 4, 6a is integrally formed on the inner surface of the molded front panel 1, is an L-shaped rib for fitting with the wooden box 2, 6c is a tip of the L-shaped rib, and 6d is a contact surface with the wooden box 2.

In FIG. 5, reference numeral 2 a denotes a front wood mouth cutout portion provided at a front end of the wooden box 2 for fitting the molding front panel 1, 2 b denotes a front wood mouth joint surface which is abutted with the molding front panel 1 at the time of fitting, Reference numeral 4 denotes a foamed sheet made of sponge rubber, which is attached to the front joint opening 2b.

As shown in FIG. 6, when the molded front panel 1 is fitted and incorporated in the wooden box 2, the foamed sheet 4 is placed between the molded front panel 1 and the front wood-mouth joint surface 2 b of the wooden box 2. Get burned. Therefore, the chattering generated by the collision between the molded front panel 1 and the wooden box 2 due to different vibrations is absorbed by the foam sheet 4.

[0009]

[Problems to be solved by the device]

 However, the above-mentioned conventional speaker box has a problem in that it is necessary to attach a foam sheet to the front wood mouth joint surface of the wooden box, which causes the material cost of the foam sheet and the number of attachment steps, which significantly increases the cost. Was there.

In view of the above-mentioned conventional problems, the present invention has been made for the purpose of providing a speaker box which does not need to be attached with a foamed sheet and enables a large cost reduction.

[0011]

[Means for Solving the Problems]

 In order to solve the above problems, a speaker box of the present invention is formed by joining a molded front panel having needle-shaped pins to the molded front panel at a joint surface, and at the time of joining at the joint surface, the needle pins are And a wooden box configured to bite in.

[0012]

[Action]

 According to the above-mentioned configuration, the present invention can vibrate the molded front panel and the wooden box by the needle pin to prevent chattering, omits the attachment of the foam sheet, and enables a significant cost reduction.

[0013]

【Example】

 Hereinafter, embodiments of the speaker box of the present invention will be described in detail with reference to FIGS.

FIG. 1 is an exploded perspective view of a speaker box according to an embodiment of the present invention. 2 is a box-shaped wooden box made of particle board, 1 is a wooden box 2 fitted to cover a front opening of the wooden box. A molded front panel 3 made of resin such as polystyrene attached is a wood screw for fixing the molded front panel 1 after fitting the molded front panel 1 into the wooden box 2.

FIG. 2 is a sectional perspective view of an essential part of a molded front panel of the speaker box of the present invention, and FIG. 3 is a sectional view of an essential part of an assembled speaker box of the present invention.

2 and 3, 1a is integrally formed on the inner surface of the molded front panel 1, L-shaped ribs for fitting into the wooden box 2 and 1b are needle pins provided on the L-shaped rib 1a, Reference numeral 1c is the tip of the L-shaped rib, and 1d is the contact surface for the wooden box 2. Reference numeral 2a denotes a front wood mouth cutout portion provided at the front end of the wooden box 2 for fitting the molding front panel 1, and 2b is a joint surface for the molding front panel 1, which is a wood mouth made of particle board and is relatively soft. The needle-shaped pin 1b bites easily and is cheap.

When the molded front panel 1 is fitted and incorporated into the wooden box 2, the needle pin 1b integrally formed on the molded front panel 1 is attached to the joint surface 2b of the wooden box 2 as shown in FIG. The fitting front panel 1 and the wooden box 2 oscillate synchronously as they are inserted into each other.

As described above, according to the present embodiment, the molded front panel 1 can be formed simply by integrally forming the needle-shaped pins 1b on the molded front panel 1 without using the conventional foaming sheet for preventing chattering. It is possible to prevent chattering between 1 and the wooden box 2.

[0019]

[Effect of device]

 As described above, according to the present invention, a molded panel provided with a needle-shaped pin and a molded front panel are joined to each other at the joining surface, and the needle-shaped pin is configured to bite when joining at the joining surface. Since it is equipped with a box, it is possible to prevent chattering between the molded front panel and the wooden box, and it is possible to reduce the cost significantly by omitting the conventionally required foam sheet.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a speaker box in the related art and an embodiment of the present invention.

FIG. 2 is a cross-sectional perspective view of the main part of the molded front panel of the speaker box of the present invention.

FIG. 3 is a sectional view of an essential part of the speaker box assembly of the present invention.

FIG. 4 is a cross-sectional perspective view of a main part of a molded front panel of a conventional speaker box.

FIG. 5 is a cross-sectional perspective view of a main part of a conventional wooden box of a speaker box.

FIG. 6 is a sectional view of a main part of an assembly of a conventional speaker box.

[Explanation of symbols]

 1 Molded front panel 1b Needle pin 1d Contact surface 2 Wooden box 2b Joining surface

Claims (1)

[Scope of utility model registration request] 1. A molded front panel provided with a needle-shaped pin, and a wooden box which is joined to the molded front panel at a joining surface and is configured to bite the needle-like pin at the time of joining at the joining surface. A speaker box characterized by having and.