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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external perspective view of a conventional
pipe duct, FIGS. 2 and 3 are a plan sectional view showing a state of attachment of the pipe duct
to a baffle plate, 7 is a view showing a manufacturing process of a pipe duct of the present
invention, and FIGS. 8 and 9 are plan sectional views showing a state in which the duct is
attached to the pamphlet plate. 1 ... pipe duct, 2 ... baffle plate, 3- ... opening, 4 ..... duct part, 5 ... ...
sound Drive
DETAILED DESCRIPTION OF THE PROBLEM The present invention relates to an improvement of
a pipe duct in a phase inverted cabinet of a speaker. Needless to say, the pipe duct of the phase
inverting type cabinet is used to invert the air on the back of the speaker to the front, and it is cut
inside the duct. Air vibrates □ Therefore, abnormal resonance sound is generated from the duct
due to vibration, and there should be no change in shape due to normal use conditions, especially
temperature change and humidity change. However, it is impossible to sufficiently suppress
anomalous resonance sound from the material of the shoes 7 paper (which (1) is often used
recently) due to its material. Note that Fig. 1 is a book showing the appearance of a conventional
pipe duct, so it is a nursery by winding kraft paper in a multilayered manner in a spiral manner 0
To attach this duct 1 to the baffle plate 2, As shown in Fig. 3, a piece 3 is provided at one end of
the duct 1 as shown in Fig. 3, and the staple needle is pushed in the direction of the arrow From
the direction of the staple needle. That is, it is necessary to fix the conventional product (- at the
time of attachment from the center direction of the baffle opening portion, so it becomes difficult
to strike as the inner diameter gets smaller, so weave 3 needs to be woven as shown in jp 3 i N
Consequently, the number of fabrication man-hour increases and this problem is 44 in terms of
strength. In order to solve such a drawback in the present invention, the following figure shows
one embodiment of the present invention in the form of a station. 0 That is, in FIG. 8, the pipe
duct (2) 1 is inserted into the opening 3 of the buckle plate 2 Shows a thing penetrated from the
front, and talent figure 9 shows a book in which a pipe duct 1 is deposited on the inner surface of
the baffle plate 2. The duct is composed of a tubular duct portion 4 and a flange portion 5
formed integrally with the one end of the duct portion 4, and this duct is made as follows. First,
as shown in FIG. 1 and FIG. 4 As a result, the tank 6 is provided with an extracting net 7, filled
with recycled pulp liquor which is beaten newspaper, magazine etc from this-L part, then drained
out water as shown in the contradiction 5 "1, Only pulp is gathered, as shown in Fig. 6, the pulp
part is removed from the abrasive net and dried. Furthermore, as shown in the seventh ward, the
duct is completed by punching out only 1 IF 8. In this case, if necessary, impregnate the duct
with a floating prevention agent etc. ○ The present invention can be achieved by refining the
pipe duct 1 on the re-pulverized paper pulp and making this by slaughtering , The duct N 4 and
the collar portion 5 are integrally molded, it is easy (3) to single nappe to the baffle surface, and
since the material itself has a sound absorbing effect, the sound pressure at the back of the
speaker It does not cause resonance, and furthermore, it is possible to reduce the number of
steps in manufacturing it 0
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jps5315325, description
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