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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view, FIG. 2 is a front
view, FIG. 3 is a front view of a seat frame from which a butt is removed, and FIG. 4 is a bottom
perspective view of the bat, and FIG. 5 is a cross-sectional view of the bat. 1
ииииииииииииииииииииииииииииииииииииииииииииии ? 6 ...... annular groove, 7 ...... ridges, T ...... grooves, 8 ...... Tsuon'ana, 9 ......
toroidal core , 10 ...... sound permeability fabric, 11 ...... butt, adhesive portion 12 ...... bat.
[Detailed description of the invention] The present invention is a stereo headphone (I can be
heard as a sound as accurate as possible from the sound generated by the speaker as hesodho, /)
-1:-n I will try to provide. In the conventional headphone, the sound wave generated by the
speaker is partially absorbed by the sound absorbing material that forms the butt through the
sound transmission hole of the seat frame to reduce the possible echo of the sound, but the
adhesive surface of the butt is entirely (If the bat is placed on the ear because it adheres to the
two-part frame surface, part of the sound generated from the speaker is absorbed by the soundabsorbing material of the bat or most of it is inside the butt sealed with the ear Because there is a
drawback that accurate clear sound can not be heard because it echoes toward the other side,
this proposal was devised so that the sound emitted from the speaker would not be reflected
inside the bat except for this defect, and this is shown as an example In the drawing, the platelike seat frame (3) is connected to the front of the outer frame (2) having the speaker (1) inside,
and it is concave with the rim (4) remaining on the front of the flat frame. Forming a hole, the
convex surface 8 of the required diameter on the inner bottom surface of the shadow concave
hole static T5) is taught in a lift-and-fall manner, and an annular groove (6) is formed between
the convex portion and the peripheral edge (4) to form a convex portion (a surface of 52 (two
convex ridges (7) I To connect both ends of the groove (7) 2 between the ridges to the annular
groove (6), leaving the center of the bottom of the seat frame (3) ? 2 ridges (1) to pass the
sound of the required diameter, 2 '?-) 1 hole (8) is provided and a doughnut-shaped core (9) is
formed on the front face of the convex part (5) by a sound absorbing material such as a sponge
having open cells, and the surface side of the core is artificial leather And the bottom surface side
covered with the sound-permeable woven fabric uO), and a part of the bottom surface of the pad
is glued to the surface of the grid convex part (5) Between the bottom surface of the bat and the
seat frame (3) (two sound gaps left. Since the proposal is configured as described above, the
sound generated from the speaker is partially absorbed by the sound absorbing material of the
pad, and the groove between the ridges (7)! ?? Since the sound is emitted through 2 and the
annular groove (6) and also emitted from the gap between the bottom of the 1) and the convex
portion (5) having a lattice-like surface, When drawn to the inside of the bat as in the
conventional bat (one sound does not get heard, and therefore the sound generated by the
speaker does not produce echo in the bat, so the sound coming out of the speaker is an accurate
clear sound There is an effect that can be heard. ?
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