вход по аккаунту


код для вставкиСкачать
Patent Translate
Powered by EPO and Google
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 a front view of the main part of the flat
diaphragm type loudspeaker according to the present invention, FIG. 2 is an enlarged sectional
view taken along the line 1-- in FIG. It is a figure which shows the vibration speed-frequency
characteristic of a speaker and the conventional speaker. 10 ...... diaphragm, 11 ...... window hole,
12 ...... periphery edge, 13 ...... peripheral edge 13a ...... roll unit, 13b · · · · · · · corner portion, 13c ·
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · corner
portion, 13c · · · · · · · · · · · · · · · ·
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flat diaphragm
speaker, and more particularly to a nine-plane vibration and footwear speaker in which coaxial
tweeters, squawkers and the like are incorporated. Recently, a number of loudspeaker systems
have been developed that have flat frequency characteristics and use a wide flat diaphragm of
the service area, compared to the well-known cone-type or dome-type vibration plate. Especially,
in the point that the response is excellent, the flat diaphragm of square horn is in the limelight.
U) Since the diaphragm is used with the whole area of the sound wave radiation area 1-A and-/-,</ η n, if the edge supporting the square diaphragm has abnormal operation, the speaker
Yamatani appears in the author's response to the response. For example, in the eggplant pension
of a square planar diaphragm, a frame-shaped edge shaped along the shape is used. The typical
shape of this edge is a cross section of a cow-shaped cross section with four straight edge
members connected in a frame shape, and in the coaxial strict speaker system having an opening
window hole at the center This edge is used for the outer peripheral edge and the inner
peripheral edge of the diaphragm. And, in a flat diaphragm type speaker in which a skoka, a
tweeter, etc. are arranged coaxially, an edge is present on the outer peripheral edge and the inner
peripheral edge of the swing plate of the skoka, and the outer edge is 1 on the frame. The inner
edge supports the diaphragm with respect to the inner frame and has nine configurations.
However, in the case of a speaker system composed of a rectangular diaphragm, in particular, the
edge of the outer edge differs from the length of the inner edge, so that the edge of the 7
lexibility is different. Then, the piston movement of the diaphragm can be followed in the part
near the outer edge, but the rigidity of the edge is strong in the part near the inner edge, and this
may prevent the piston movement of the diaphragm to some extent. Therefore, in the case of a
flat diaphragm type speaker having four diaphragms with four open window holes in the center,
the diaphragm has an input signal [fidelity piston] It is designed to be able to move, so that a
damping material is applied to the area around the window hole, in other words, to increase the
7 lexibility of the central part of the straight part of the inner edge. It is an a% symptom that has
improved driving of the entire diaphragm. The details of this invention will be described below
with reference to the attached drawings. First, in the figure, reference numeral IO denotes a
square planar diaphragm, which is open at the center and has a round window hole l /, and the
outer peripheral edge of this planar diaphragm IO is supported by a peripheral edge having a roll
portion / Ja It is attached.
Further, the inner peripheral edge of the flat diaphragm 10, in other words, the peripheral edge
of the l hole //, is also supported by the inner peripheral edge 13 having a groove @ / Ja. The
damping material l is applied to the central portion of the portion / 3b and the portion IJb, in
other words, the inner peripheral edge / J stray) ml / Jc. Since the flat diaphragm speaker of this
invention is configured as described above, the inner circumferential edge itself can follow the
motion of the flat diaphragm without interfering with its piston movement, and there is no
divided vibration, and the frequency characteristic is improved. The service area can be
expanded. The vibration velocity of measurement point X (the sound pressure is differentiated by
time)-frequency characteristics-11A in the speaker of this invention and the same m1tB of the
speaker system not using a damping material are shown in FIG. According to this K, the edge of
this device draws a curve without dips and peaks. As apparent from the above description,
according to the flat diaphragm type speaker of the present invention, the straight IIK damping
material of the inner peripheral edge supporting the inner periphery of the diaphragm having the
window hole is applied, and the 7 lexibility of that portion is applied. In the same manner as in
the straight section, the flat plate vibration section can well follow the movement of the moving
plate, prevent divided vibrations, and can serve to provide a speaker system excellent in various
characteristics. Brief description of four factors Horse 1 Figure 1 is a front view of the main part
of the flat diaphragm speaker according to the invention -1 Figure 2 is an enlarged cross section
1 taken along the line 1 Figure 1 Diagram showing vibration velocity-frequency characteristics of
the conventional speaker and 010: diaphragm, // window hole, outer edge: outer edge, 3: inner
edge, 13a.・ Kyole part, / 3b ... = +-s s, / Jc ... straight part / 4i ... damping material. Utility model
registration Pioneer Co., Ltd. applicant agent patent attorney small machine 4I floating amount
Susumu Murai ,. ・ Determination of stroke □ ′ ′, -s 払 4 j 3 c 9 b 43 also − and
22 t Jquotient to no quotient-no pigeon to one dove xi. The 1 "2, lf". A1 / ′ ′ ′ ′ ′ ′ ′ ′ ′
′ V ゝ #j> / ### / k # JA 'dQf jail--5, 6 other than the above substitutes Tokyo Shinjuku section
new * 1 chome 9-13 籐-Taisho Building Building 4th floor l · 4 patent attorneys! Shinmura
Umeda Shingo Telephone Tokyo (3 people (1) * tSt ■ 542 fufu 17
Пожаловаться на содержимое документа