JPS5819893Y2 - Phase reversal type cabinet - Google Patents

Description

[Detailed description of the invention] This invention involves fitting a duct extending rearward into an opening made in a baffle plate, and fixing a decorative duct by press-fitting it into the duct from the front side of the baffle plate. This invention relates to an improvement of a phase inversion type cabinet made of.

Conventionally, in this type of phase reversal type cabinet, the decorative duct was designed to improve the appearance of the front side of the baffle plate, so it was simply press-fitted into another duct. Therefore, it was not possible to attach a net to the decorative duct to prevent dust and insects from entering the cabinet or from seeing the inside of the cabinet.

Therefore, when the net was added, it was stretched over the rear opening of the other duct.

However, in the case of the above configuration, the net is likely to become dirty and clogged with dust due to its role;
Since it is not easy to replace them, it is necessary to use IT that is dirty and clogged, which has the disadvantage of deteriorating sound quality characteristics.

Isn't this idea taken into account the above circumstances? A retaining ring is press-fitted into the rear outer peripheral surface of the decorative duct to clamp and fix the periphery of the net 1, and the net is removably stretched over the rear opening of the decorative duct, and the retaining ring is By making the outer diameter of the rear outer circumferential surface in the press-fitted state smaller than the outer diameter of the front outer circumferential surface that is press-fitted and fixed, it is possible to replace the net when it becomes dirty and clogged by adding and removing only the decorative duct. This makes it easier to carry out the process, thereby preventing deterioration of sound quality characteristics.Furthermore, the net is stretched over the decorative duct before the decorative duct is driven in from the front side of the baffle plate and fixed by press-fitting. It is an object of the present invention to provide a phase-inverting cabinet which can be easily assembled.

Hereinafter, the present invention will be explained in detail based on the embodiments shown in the drawings.

FIG. 1 is a partially cutaway side view showing the main parts of the present invention.

A duct 4 is fitted into the opening 2 of the baffle plate 1 with its front end flush with the front surface of the baffle plate 1, and the rear end of the duct 4 faces toward the rear of the baffle plate 1. It is extending.

A decorative duct 7 with a flange Ta is press-fitted into the front end opening M4f of the duct 4.

The rear outer circumferential surface 7c of the decorative duct 7 is formed in a tapered shape, and the rear outer circumferential surface 7CrK clamps and fixes the periphery 6a of the net 6 by press-fitting the retaining ring 5.
is configured to be removably attached to the rear opening γb of the decorative duct 7.

The outer diameter of the rear outer peripheral surface γC of the decorative duct 7 when the retaining ring 5 is press-fitted is formed to be smaller than the outer diameter of the front outer peripheral surface 7e to which the retaining ring 5 is press-fitted.

7d is a locking step portion for locking the retaining ring 5.

FIG. 2 is a partially cutaway side view showing the main parts of another embodiment of the present invention.

The opening 2 formed in the baffle plate 1 has a small diameter on the front side.
The rear side is formed to have a large diameter, and a duct 4 is fitted into the large diameter portion 3 of the opening 2.

The duct 4 is fixed with a stable 8 or the like.

A decorative duct 7 with a flange Ia is press-fitted into the bottom portion 2a of the opening 2.

The other parts are the same as those in the embodiment shown in FIG.

In the case of this embodiment, after the duct 4 is fixed to the baffle plate 1 with the stable 8 etc., the decorative duct 7 can be driven in from the front side and fixed by press fitting, so the fixation of the duct 4 is reliable and easy. It doesn't come off.

Next, to explain the function of the present invention, first, the duct 4 is fitted into the opening 2 of the baffle plate 1.

On the other hand, a net 6 is first stretched over the decorative duct γ using a retaining ring 5.

Next, the decorative duct 7 is driven into the baffle plate 1 from the front side and press-fitted and fixed.

When replacing the net 6, remove only the decorative duct 7, remove the retaining ring 5, and replace it with a new net 6.
The retaining ring 5 is press-fitted and the decorative duct 7 is press-fitted and fixed in the same manner as described above.

As described above, in the present invention, a duct 4 extending rearward is fitted into an opening 2 formed in a baffle plate 1, and a decorative duct 4 is inserted from the front side of the baffle plate 1 toward the duct 4. In the phase reversal type cabinet formed by press-fitting and fixing γ, a retaining ring 5 is press-fitted into the rear outer peripheral surface 7e of the decorative duct 7, so that the periphery 6a of the net 6 is clamped and fixed, and the net 6 is fixed to the decorative duct 7. The outer diameter of the rear outer circumferential surface 7c of the retaining ring 5 in the press-fitted state is smaller than the outer diameter of the front outer circumferential surface 7e to which the retaining ring 5 is press-fitted. This is a phase-inverted cabinet.

Therefore, if the net 6 becomes dirty and clogged due to dust etc., it can be easily replaced with a new net by removing only the press-fitted decorative duct 7. Since there is no need to use a manual net, deterioration in sound quality characteristics can be prevented.

Further, the outer diameter of the decorative duct 7 is varied in size so that the outer diameter of the rear end outer circumferential surface 7c is made small as described above, and the net 6 is stretched by press-fitting a retaining ring 7.
'v7'iC, the net 6 can be stretched over the decorative duct 1 in advance and then pressed into the baffle plate 1 from the front side and fixed, so assembly is easy.

Moreover, since the retaining ring 5 portion has a small diameter, it does not touch the baffle plate 1 or other ducts 4 during assembly by driving, so there is no possibility that the retaining ring 5 or the duct 4 will come off.

[Brief explanation of the drawing]

1 and 2 are partially cutaway side views showing essential parts of different embodiments of the present invention, respectively. 1... Baffle plate, 2... Opening, 4
......Duct, 5...Retaining ring, 6...
...Net, γ... Decorative duct.

Claims (1)

[Scope of utility model registration request] In the phase reversal type cabinet, a duct extending rearward is fitted into an opening formed in a baffle plate, and a decorative duct is press-fitted into the duct from the front side of the baffle plate. A retaining ring is press-fitted into the outer peripheral surface of the rear part of the duct to clamp and fix the periphery of the net, and the net is removably stretched over the rear opening of the decorative duct. A phase reversal type cabinet characterized in that the outer diameter of the outer circumferential surface is smaller than the outer diameter of the front outer circumferential surface to be press-fitted and fixed.