JP3132237B2 - Cabinet equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cabinet apparatus for audio equipment.

[0002]

2. Description of the Related Art In recent years, a set of audio equipment uses a highly rigid member such as an iron plate called a chassis, and a leg is attached to a lower portion of the member with screws or the like, and a CD mechanism, a deck mechanism, It has a configuration in which a printed circuit board and the like are mounted.

Hereinafter, an example of a chassis configuration for the above-described audio equipment will be described with reference to the drawings.

FIG. 4 shows the internal configuration of an audio equipment set. In FIG. 4, reference numeral 42 denotes a chassis;
Is a leg, 45 is a printed circuit board, and 44 is a deck mechanism.

[0005]

However, in the above-mentioned conventional chassis configuration, since a rigid material such as an iron plate is used, vibration generated from a mechanism or vibration transmitted from the outside via a leg is required. There was a problem that the chassis itself resonated.

The present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide a cabinet apparatus which does not resonate with vibrations from inside and outside and has excellent acoustic characteristics.

[0007]

In order to solve the above-mentioned problems, a cabinet apparatus according to the present invention comprises:
A thermoplastic or thermosetting synthetic resin, constitutes a high rubber with flexibility and internal loss, and with a resilient material that is different 4 crystal direction is formed by mixing the whiskers made of zinc oxide grown from the center, this A chassis made of a rigid material on which components are mounted is arranged in a cabinet, and the chassis and the cabinet are fixed to each other by screws on mounting bosses formed in the cabinet. Rubber material with high flexibility and internal loss
For example, SBR or NBR can be mentioned.

[0008]

According to the present invention, it is possible to reduce the vibration generated from inside the set such as the mechanism mounted on the chassis and the vibration transmitted from the outside of the set via the legs by the above-mentioned structure, thereby preventing the resonance of the chassis. Will be done.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the cabinet apparatus of the present invention will be described below in detail with reference to FIGS.

FIG. 1 is a sectional view of a main part of a cabinet apparatus according to a first embodiment of the present invention.

In FIG. 1, 1 is a cabinet made of an elastic material, 2 is a chassis made of a rigid material, 3
Is a leg. The chassis is directly fixed to a mounting boss 1c formed on the cabinet by screws, and positioning is formed on a leg mounted on the lower surface of the cabinet, and the cabinet is sandwiched between the leg and the chassis. Screw 4 from the chassis side
There is a part fixed by. The cabinet and the legs are positioned by positioning bosses 3a formed in the legs and holes 1a provided in the cabinet.

The elastic material 1 constituting the cabinet 1
As an example, FIG. 3 shows the molecular formula: ZnO, specific gravity: 5.78
1 shows the relationship between flexural modulus and internal loss when zinc oxide whiskers and synthetic rubber (SBR) are mixed with a PP resin as a matrix resin. As is clear from FIG.
As the content of the synthetic rubber (SBR) increases, the internal loss of the material increases, and the vibration absorption also increases.

As described above, according to this embodiment, since the cabinet is made of an elastic material having high flexibility and internal loss, and the cabinet is fixed to the chassis by screws, the installed mechanism and the like are not included. The cabinet itself absorbs vibration generated from the inside of the set and vibration transmitted from the outside of the set via the legs, thereby preventing resonance of the chassis.

Although there is no particular description of a structure for preventing the cabinet side wall from bending outward, for example, as shown in FIG. 2, a guide groove 1b having a T-shaped cross section is formed on the inner side of the cabinet side wall. Is formed in the chassis 2, and a notch 2 a to be fitted in the guide groove 1 b is formed in the chassis 2.
If the notch 2a is fitted to the b, the outward bending of the cabinet side wall can be prevented.

[0015]

The present invention as described above, according to the present invention is a cabinet, thermoplastic, or a thermosetting synthetic resin, flexibility and internal loss high gum, and crystallized from the center to the four different directions grew oxide It is composed of an elastic material made by mixing whiskers made of zinc, and a chassis made of a rigid material with components mounted inside this cabinet,
By fixing this chassis and the cabinet to the mounting boss formed on the cabinet with screws,
The cabinet itself can absorb the vibration generated from inside the set such as the mounted mechanism and the vibration transmitted from the outside of the set via the legs, thereby preventing resonance of the chassis.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a cabinet apparatus according to a first embodiment of the present invention.

FIG. 2 is an assembled perspective view of a guide groove having a T-shaped cross section provided on a cabinet side wall of the cabinet apparatus.

FIG. 3 is a diagram showing physical characteristics of an elastic material of the cabinet device.

FIG. 4 is a sectional view of a main part showing a configuration of a conventional cabinet device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cabinet 1a Positioning hole provided in cabinet 1b Guide groove in cross section of cabinet side wall 1c Mounting boss 2 Chassis 3 Leg 3a Positioning boss provided in leg 4 Mounting screw

──────────────────────────────────────────────────の Continued on the front page (72) Inventor Hideo Oya 1006 Kadoma Kadoma, Kadoma City, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (56) References JP-A 62-67388 (JP, U) JP-A 62-129192 (JP, U) JP-A 62-193779 (JP, U) JP 2-68392 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) G11B 33/02 301

Claims (3)

(57) [Claims] 1. A cabinet for constituting at least the bottom plate, the cabinet, thermoplastic or thermosetting synthetic resin, flexibility and internal loss high gum,
And a whisker made of zinc oxide having crystals grown in four different directions from the center. The whisker is made of an elastic material, and a chassis made of a rigid material having components mounted thereon is arranged in the cabinet. And a fixing boss formed on the mounting boss formed on the cabinet. 2. The method according to claim 1, wherein positioning is formed on a leg attached to the lower surface of the cabinet, and the leg is attached to the chassis by screws so that the cabinet is held between the leg and the chassis. Cabinet equipment. 3. A guide groove having a T-shaped cross section is formed on the inner surface side of the side wall of the cabinet, and a notch is formed in the chassis so as to be fitted in the guide groove. 3. The cabinet apparatus according to claim 1, wherein a notch is fitted into the groove to prevent the cabinet side wall from bending outward.