JPS5678064

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DESCRIPTION JPS5678064
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing an embodiment of the
present invention, FIG. 2 is a cross-sectional view taken along line 1--2 of FIG. 1, FIG. 3 is a rear
view, and FIG. FIG. 5 is an exploded perspective view of the wire connection mechanism, and FIG.
6 is a circuit diagram of the speaker system. 11 · · · · · · · Base body, 15 · · · · · circular through hole
as a projection through hole, · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Body,
36 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 30 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
· · · · · · · · · · · · · · · · · · · · · 30 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · 33
DETAILED DESCRIPTION OF THE INVENTION The present invention is a wire connector used in
a speaker box. In general, when a large speaker is attached to a speaker box such as stereo and
operated, air pressure is generated to cause a difference in air pressure between the inside and
the outside of the speaker box. As a result, when the air flows from the inside of the speaker box
to the outside or in the opposite direction, noise such as "hy-hy-hy-yu" is generated, and the
sound generated from the speaker and the human-mixed sound effect are reduced. Therefore, the
speaker box is necessarily required to have a degree of sealing that can withstand (2) changes in
air pressure, but at the same time a product having similar effects is also required for the wire
connector used for the speaker box. Ru. Therefore, in the conventional t * connector used for the
speaker box, a method of sealing the clearance of the fitting portion between the base body
incorporating the wire connection mechanism and the housing with a resin such as rubber paste
or with the speaker box A method has been adopted in which an elastic body is fitted and sealed
on the entire surface of a wire connector in contact. In the former method, the processing cost
for sealing occupies about 40% of the whole product, and there is also a problem in terms of
reliability. Also, the latter method has the disadvantage of increasing the number of parts.
Therefore, the object of the present invention is to solve the above-mentioned drawbacks of the
prior art. Hereinafter, one embodiment of the present invention will be described with reference
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to the drawings. In Fig. 1 to Fig. 3, the frame is an insulating base molded of synthetic resin, and
mounting holes α and so on at four corners of a substantially square plate bulge downward at
the central portion and the bottom wall is stepped. Recesses u31 are respectively formed. At the
center of one side of the recess 03, a container receiving portion Q41 which bulges further
downward is formed. On the bottom wall of the container housing portion a4, six circular
through holes u9 and two rectangular through holes q8 whose opening area is reduced as
opening to the back side are respectively drilled, and Two U-shaped protruding projecting walls
1η are formed on the surface of the bottom wall. Further, on the back side of the base U, as
shown in FIG. Jp4, there is a tapping hole Buddha located at the back of the recess 0 and at the
same height as the bottom wall of the container storage I at the center. (4) There are seven
pillars U and two pillars higher than that, respectively. A mounting plate Qυ is fixed to one of
the columns al by a screw (2), and both ends of a capacitor (2) constituting the speaker network
are supported by the mounting plate @, and a coil il + is mounted on the column ■. The coil
bobbin (1a) is inserted and held by the stop ring.
C (11 is a wire connection mechanism. As shown in FIG. 5, the wire connection mechanism 611
is an insulating container (mostly) molded of a synthetic resin, a conductive terminal (mostly),
and an insulating wire suppressor molded of a synthetic resin. It consists of the body and the
spring. The body (9) is formed in the shape of an open lower surface, and at the periphery of the
lower surface (the six projecting countries inserted into the circular through hole u9 of ill are
inside the center left and 5): A partition wall (div) is provided which is divided into each chamber
6η of ++ −. In each chamber @, a wire insertion hole (d) which is expanded toward the upper
surface in the upper wall, a window hole I is opened from the upper portion of the front wall to
the earth wall, and the base Protrusions that face the projecting wall aη of +111 and receive the
lower end of the spring (t) are formed on the guide wall forming the guide groove between the
inner wall and the rear wall at the rear inside. In the example of the terminal, an electric wire
gripping piece (C) whose front end is formed into a concave arc by cutting and rising at a right
angle to the central child plate inserted into the guide groove 10 of the body □□□ and the
insertion position in the guide groove i4z Are formed respectively, and the upper end of the
central flat plate has an insertion hole axis η facing the lower surface of the container C (the
wire insertion hole (2) of 2) At the lower end, the wire guide piece (c) has two (6) pieces of
holding pieces substantially in the shape of a downward arrow and a wire connecting piece (d)
projecting to the back side through the rectangular through hole tank of the base plate. Are
formed respectively. The plate thickness of this terminal example is slightly larger than the hole
width of the rectangular through hole t1e, and the lower end of the wire connection piece ω is
chamfered, and this wire connection piece − is a rectangular through hole (1G1 of the base q).
Forcibly press-fit into the above, the degree of sealing is enhanced by the elasticity of the resin of
the base a. The electric wire restraining member (conductive member) is a conductive pressing
member in which a cylindrical shaft 6υ rotatably held in the holding piece t4S of the terminal
(at) on both ends at the lower end has a front end cut away in the middle at the front end An
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operation portion Q is formed at the upper portion thereof to project outward from the window
hole 14G of the container ■, and a spring receiving groove (ii) for receiving the upper end of the
spring field is formed on the rear surface of the middle portion. (7) · · · 1, 546 Next, the assembly
method will be described. First, the central flat plate of the terminal is inserted between the guide
grooves 1421 of the container, and the insertion hole 171 of the wire guide piece at the upper
end is exposed to the lower surface of the wire insertion hole. . Then, engage the shaft 6 'of the
wire suppressor (to) with the holding piece-of this terminal (to) and make the operation part (to)
project outward from the bite of the body (from), Spring liquor is inserted between the spring
receiving groove and the projection 1411.
Then, since the upper portion of the wire pressing body (the first end) is biased toward the upper
edge side of the window with the shaft 61) as a fulcrum, each component is held in the body @.
Next, the container Q in this state is inserted into the container housing portion I of the base
body + 11), and the projection on the bottom surface of the body is projected to the back side
through the circular through hole Q9 of the base body. Then, the circular through hole seals the
gap 9 by thermally deforming the protrusion (to the top) projecting to the back side. At this time,
the lead (8) connecting piece at the time of the terminal is pushed into the rectangular throughhole all of the base body 強制 forcibly, that is, in a state in which the gap of the rectangular
through-hole 密閉 is tightly sealed and stably projected. While being held, the shaft 6N is
prevented from escaping since the lower end of the holding piece abuts against the inner bottom
surface of the base body t1. Next, on the back side of the base body Qυ, the mounting plate (21
is fixed with a screw @ to one of the support columns 0, and both ends of the capacitor (2)
constituting the network are supported by the plate mounting plate Qυ The coil bobbin (1a) of
(1) is inserted and held by the stop ring a. Then, for wiring, as shown in Fig. 6, connect one end
of the coil (1) to one terminal [Yes] projecting to the back side of the base a and connect one end
of the capacitor (2) to the other terminal 33. Do. Also, between the other terminal port and the
other end of the coil (1) and between one end (9) and the other end of the capacitor (2), When
attaching this wire connector to the speaker box, connect each speaker (sp). Now, an operation of
connecting a wire to the wire connector assembled as described above will be described. First,
when the operation part Q of the wire suppressing member is rotated against the spring field, the
pressing piece 62 moves from the position at the time of the wire insertion hole to the opposite
side to the terminal. In this state, when the electric wire is inserted into the electric wire insertion
hole (d) and the pressing of the operation part mark is released, the electric wire suppressor (d)
rotates counterclockwise in the diagram with the shaft 6 inset as a fulcrum by the elasticity of
the spring field. The suppression piece 53 pushes the electric wire toward the terminal (most)
side to electrically connect the both. In addition, the operation for releasing the connection of the
electric wire can resist the elasticity of the spring can on the operation part of the electric wire
pressing body (mostly) [If the pressure piece 6a is separated from the terminal (mostly), the
electric wire can be pulled out . According to the present invention, a plurality of projection
through holes and at least one terminal through hole are respectively formed in a synthetic resin
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base body, and the projection penetration is carried out in a synthetic resin container attached to
the surface side of the base body. A plurality of projections projecting to the back side through
the holes are formed, and after the projections of the body are inserted into the projection
through holes of the base body, clearance of the projection through holes is obtained by caulking
the projections projecting to the back side. While sealing, the cross-sectional shape of the
terminal of the wire connection mechanism incorporated between the base and the housing is
formed to be slightly larger than the terminal through hole, and this terminal is press-fit into the
terminal through hole of the base Since the clearance of the terminal through-hole is sealed by
the elasticity of the base material, that is, the elasticity of the synthetic resin, the reliability of the
degree of sealing is improved as compared with the conventional method in which the clearance
is banded by resin or the like Improve On can Rukoto, simple K and can be inexpensive, it can be
manufactured without increasing number of parts.
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