JPS5815998Y2 - reverberation device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a reverberation device, and is designed to stably maintain a reverberation unit having reverberation parts such as springs inside with a small number of parts.

Conventionally, reverberation devices have been used that use coil springs to impart a reverberation effect to audio signals.
When incorporating this reverberation device into portable audio equipment, it is necessary to take measures to sufficiently absorb vibrations during portability, and it must also be incorporated into audio equipment that includes a vibration source such as a speaker in the same cabinet. In such cases, it is necessary to take measures to prevent the sound waves from the speakers from causing oozing.

Figures 1 and 2 show conventional reverberation equipment used in such cases, where 1 is a printed circuit board, 2 is a casing mounted on the printed board 1, and 3 is a reverberation device housed within the casing 2. 4 is a coil spring for elastically suspending the reverb unit 3 from the top surface of the housing 2; 5 is a coil spring for reverberation suspended between the mutually opposing walls of the reverb unit; 6 is a coil spring for elastically suspending the reverb unit 3 from the top surface of the housing 2; A holding pin 7 is fixed to the wall of the reverb unit 3 to hold both ends of the coil spring 50, and a buffer material 7 is attached to each wall of the housing 2 and the top surface of the printed circuit board 1.

With this configuration, vibrations and howling when the device is carried can be absorbed by the expansion and contraction action of the spring 4, and the cushioning material 7
The impact can be alleviated by

However, when configured as shown in Figures 1 and 2, the housing 2
Since the cushioning material 7 must be attached to each wall surface using an adhesive or the like, there is a drawback that the number of parts increases and the number of work steps increases.

Also, since it is necessary to attach the cushioning material 7 to the inner surface,
There is also the problem that the casing 2 has to be made that much larger, making it difficult to use it for something that needs to be made as compact as possible, such as a portable audio device.

The present invention provides a reverberation device that solves these problems.

An embodiment of the present invention will be described below with reference to FIGS. 3 to 6.

In the figure, reference numeral 8 denotes a housing, and a rectangular opening 8a and a groove 8b extending from the lower edge of the opening 8a to the lower end of the housing 8 are formed in the opposing walls. A mounting piece 8c is formed for mounting on the main body (not shown).

Reference numeral 9 denotes a cushioning material made of rubber, sponge, etc., which has a through hole 9a in the center that is smaller than the opening 8a of the casing 8, and the casing is placed so that the through hole 9a is completely located inside the opening 8a. It is attached to the wall of the body 8.

10 is a half unit housed in the housing 8; 11 is a spring for elastically attaching the reverb unit 10 to the top surface of the housing 8; 12 is the reverb unit 1;
A coil spring 13 for reverberation is suspended between opposing wall surfaces of the coil spring 120, and a support rod 13 has the function of holding both ends of the coil spring 120 and the function of supporting the reverb unit 10 itself.

As shown in FIG. 4, the distance between the tips of the support rods 13 protruding from the reverb unit 10 is equal to
The distance a is longer than the distance between the wall surfaces.

The support rod 13 is connected to the groove 8b of the housing 8 and the cushioning material 90% groove 9.
The support rod 1 is loosely fitted into the through hole 9a of the buffer material 9 through the support rod
3 will not come out from the through hole 9a.

With this configuration, vibration and howling when carried can be reduced.
The expansion and contraction action of the spring 11 can sufficiently absorb the impact, so that when a severe impact is applied, such as when the device is dropped,
By the support rod 13 coming into contact with the buffer material 9, the impact can be sufficiently alleviated.

Since the cushioning material 9 only needs to be provided at two locations on the inner surface of the casing 8, the number of parts and assembly steps can be reduced.

Further, since there is no need to provide a cushioning material on the top surface of the casing 8, the side surfaces without openings, etc., the casing can be made smaller accordingly.

Note that the cushioning material 9 is made of rubber, sponge, or the like in the form of a single band with a single groove formed in the longitudinal direction, and by fitting this groove into the periphery of the opening 8a and the groove 8b, the cushioning material 9, the work of attaching the cushioning material 9 becomes even easier.

As described above, according to the present invention, the reverb unit can be stably maintained with a small number of parts and simple assembly work, and the excellent effects that the entire device can be made smaller can be obtained.

[Brief explanation of the drawing]

FIGS. 1 and 2 are a perspective view and a sectional view of a conventional reverberation device, FIG. 3 is a perspective view of an embodiment of the present invention, and FIGS. 4 and 5 are a front view and The side view, FIG. 6, is a sectional view taken along line AA' in FIG. 4. 8... Housing, 8a... Opening, 9...
...Buffer material, 9a...Through hole, 10...
- Reverb unit, 11...spring (hanging member), 12... coil spring (reverberation component), 13... support rod.

Claims (1)

[Scope of utility model registration request] A housing having openings on opposing walls, a cushioning material having a through hole and attached to the opening of the housing, and a reverberation component inside and extending outward from the opposing walls. Each reverb unit is provided with a support rod, and a hanging member elastically suspends the reverb unit from the top surface of the housing, and the support rod provided on the reverb unit is inserted into the through hole of the buffer material. A reverberation device characterized by a loose fit.