Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Housed microphone
Reexamination Certificate
2002-06-18
2004-06-29
Le, Huyen (Department: 2643)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Housed microphone
C381S365000, C381S366000
Reexamination Certificate
active
06757400
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to a microphone structure, and more particularly to a structure for holding a microphone and attaching the microphone to a percussion instrument or wind instrument. The structure is provided with means to absorb shock.
BACKGROUND OF THE INVENTION
The microphone is generally mounted on a floor stand, which is located appropriately in the concert hall. The floor stand is heavy and must be adjusted in height and angle so as to maximize the effect of the microphone. However, the use of the microphone floor stand is not effective, especially in a concert in which a number of musicians are seated in the designated locations. A remedial measure is to provide a microphone structure by which the microphone is attached to a musical instrument, thereby resulting in elimination of the microphone floor stand.
As shown in
FIGS. 1 and 2
, a prior art microphone structure
10
comprises two clamping pieces
101
for attaching a microphone
20
to the bell rim of a brass wind instrument. The two clamping pieces
101
is provided therebetween with a gripping space in which the bell rim of the brass wind instrument is received. However, the gripping space is generally too small to accommodate a wood instrument or percussion instrument.
As shown in
FIGS. 3 and 4
, another prior art microphone structure comprises a seat
30
and a microphone
40
. The microphone
40
is attached to the seat
30
such that the microphone
40
can be adjusted in position, and that the microphone
40
is attached to a percussion instrument, such as a drum, by the seat
30
. The seat
30
is an integrally-made structure incapable of locating the microphone
40
securely in place at a predetermined portion of the drum, especially at the time when the drum is struck. The gripping space of the seat
30
is fixed and can not be therefore adjusted to accommodate the wind instrument.
As shown in
FIGS. 5 and 6
, a prior art microphone structure comprises a clamp seat
50
which is formed of a seat body
501
, an upper clamp piece
502
, a lower clamp pieces
503
, two spring
504
, and a movable piece
505
. Before fastening the microphone to a musical instrument, the movable piece
505
is pressed downwards to compress the springs
504
so as to widen the gap between the upper clamp piece
502
and the lower clamp piece
503
to accommodate the side edge of the musical instrument. As the movable piece
505
is relieved of the pressure exerting thereon, the movable piece
505
is forced by the spring force of the springs
504
to move upward, thereby resulting in the clamping of the side edge of the musical instrument by the upper clamp piece
502
and the lower clamp piece
503
. The compression springs
504
are susceptible to metal fatigue after the prolonged use of the microphone structure. As a result, the microphone can not be securely held in place by the musical instrument.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provided a microphone structure comprising a fixed clamp piece, a movable clamp piece, and a threaded rod by which the movable clamp piece is moved up and down so as to adjust the gap between the fixed clamp piece and the movable clamp piece to accommodate the bell rim of a wind instrument or the edge of a percussion instrument. The fixed is clamp piece and the movable clamp piece are provided with a shock-absorbing pad, which comes in contact with the bell rim of the wind instrument or the edge of the percussion instrument at the time when the microphone structure is engaged with the musical instruments. The contact surface of the shock-absorbing pad is provided with a serrated surface to give an added holding effect to the fixed clamp piece and the movable clamp piece.
The threaded rod is disposed in a receiving slot of a base such that the threaded rod is meshed with a threaded hole of the movable clamp piece, and that one end of the threaded rod is jutted out of the receiving slot of the base. When the one end of the threaded rod is turned, the movable clamp piece is actuated to move upward or downward so as to adjust the distance between the movable clamp piece and the fixed clamp piece. The base is provided with a locating hole for locating a microphone.
REFERENCES:
patent: 3665490 (1972-05-01), Oskar
patent: 4811405 (1989-03-01), Peiker
patent: 6424723 (2002-07-01), Jing
Bacon & Thomas PLLC
Le Huyen
TAKY Electronics Co., Ltd.
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