JPH0644288U - Speaker cord fixed structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a speaker cord fixing structure which prevents the speaker cord from coming off from the locking portion and avoids a short circuit due to the breakage of the coating of each cord. [Structure] An engaging portion 9 having a tunnel-shaped insertion hole 8 is formed in a part of the speaker frame 1, and a string-shaped clamper member 6 is inserted into the insertion hole 8 to insert a speaker cord 5A,
5B is clamped and fixed to the outer surface of the locking portion 9 by the clamper member 6.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a speaker cord fixing structure in which a cord pulled out from a speaker is fixed by a string-shaped clamper member.

[0002]

[Prior art]

 In a speaker used as a playback device for audio equipment, an input terminal connected to a voice coil is attached to a speaker frame, and a cord is pulled out of the speaker from this terminal. In this case, in order to prevent the cord from being unnecessarily laid around and excessively added to the terminal, the cord is fixed to the speaker frame with an appropriate clamper.

FIG. 3 shows an example of a conventional speaker cord fixing structure, in which a substantially L-shaped engaging portion 2 is formed by cutting and raising in a part of the speaker frame 1, and the speaker frame 1 is also provided. A terminal plate 4 provided with terminals 3A and 3B connected to a voice coil (not shown) is attached to the other part. The pair of cords 5A and 5B drawn out from the terminals 3A and 3B are fixed to the locking portion 2 by being tightened by a string-like clamper member 6 such as a bead binder while being inserted into the inside of the locking portion 2. Has been done.

Here, since the locking portion 2 is provided by being cut and raised in a substantially L-shape, there is a risk of breakage when stress is applied upward in the drawing. Therefore, the width W2 of the locking portion 2 is formed to be wide to some extent, and sufficient strength is secured. Further, the space inside the locking portion 2 is provided to a certain extent so that the work can be easily performed when inserting the pair of cords 5A and 5B.

[0005]

[Problems to be solved by the device]

 However, the conventional speaker cord fixing structure as described above has the following problems. (1) Since the width W2 of the locking portion 2 is wide, when tightening the cords 5A and 5B with the clamper member 6, a gap is apt to be formed around the cords 5A and 5B, and the cords 5A and 5B have play. Will occur. Further, since the locking portion 2 is cut and raised from the inside of the speaker frame 1 by press working or the like, a burr is generated on the peripheral edge of the inner surface of the locking portion 2, and each cord 5A, 5B is locked by the locking portion 2. If the cords 5A, 5B are moved inside, the coating of the cords 5A and 5B may be broken and short-circuited. (2) Also, since it is difficult to completely fix the cords 5A and 5B by the clamper member 6 as described above, the cords 5A and 5B move with the clamper member 6 toward the tip of the locking portion 2 over time. However, in the worst case, as shown in FIG. 4, the locking part 2 comes out of the gap 7, and vibrations applied to the cords 5A and 5B are directly transmitted to the terminals 3A and 3B, which may cause a failure such as a contact failure. There is a risk of becoming. This becomes remarkable especially in a speaker applied to a vibration-related application such as a car-mounted audio device.

The present invention has been made in consideration of the above problems, and prevents the speaker cords from coming off from the locking portions and prevents the coating of each cord from being broken to avoid a short circuit. An object of the present invention is to provide a speaker cord fixing structure.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention forms a locking part having a tunnel-shaped insertion hole in a part of a speaker frame, and inserts a cord-shaped clamper member into the insertion hole to pull out a cord drawn from the speaker. The clamper member is characterized by being tightened and fixed to the outer surface of the engaging portion.

[0008]

[Action]

 According to the above means, since the insertion hole of the locking portion has a tunnel shape, the clamper member does not come out of the locking portion, and thus the cord can be prevented from coming off the locking portion. Further, since the width of the locking portion can be formed small, the cord can be completely clamped and fixed by the clamper member, and there is no play of the cord, and the breakage of the coating of each cord can be prevented.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a speaker cord fixing structure of the present invention. Reference numeral 1 in the drawing denotes a speaker frame, and a locking portion 9 having a tunnel-shaped insertion hole 8 is formed on a part of the outer peripheral surface by cutting and raising by press working or the like. A terminal plate 4 having terminals 3A and 3B connected to a voice coil (not shown) is attached to the other part of the speaker frame 1, and a pair of cords 5A and 5B are attached to the terminals 3A and 3B. It is soldered.

As shown in FIG. 2, a cord-shaped clamper member 6 such as a bead binder is inserted into the insertion hole 8 of the locking portion 9. Subsequently, the pair of cords 5A and 5B drawn out from the terminals 3A and 3B are fixed to the locking portion 9 by being clamped as shown in FIG. 1 by the clamper member 6 inserted into the insertion hole 8. Since the locking portion 9 is formed in a tunnel shape having the insertion hole 8, it is less likely to be broken than the conventional L-shaped locking portion, and its width W1 is smaller than the width of the conventional locking portion. Is also narrowly formed.

According to the present embodiment as described above, the engaging portion 9 having the tunnel-shaped insertion hole 8 is formed in a part of the speaker frame 1, and the string-shaped clamper member 6 is inserted into the insertion hole 8. Since the speaker cords 5A and 5B are tightened to be fixed to the locking portion 9, the following effects can be obtained. (1) Since the cord-shaped clamper member 6 is inserted into the tunnel-shaped insertion hole 8 so as to tighten the cords 5A and 5B, the gap 7 like the conventional locking portion 2 shown in FIGS. 3 and 4 is formed. Since the clamper member 6 does not exist, the clamper member 6 is prevented from coming off from the insertion hole 8, and thus the cords 5A and 5B are also prevented from coming off (disengaging). Therefore, the weights or vibrations of the cords 5A and 5B are not directly applied to the terminals 3A and 3B, and it is possible to prevent contact failure due to peeling of solder from the terminals 3A and 3B. This is especially effective for speakers that are applied to applications such as in-vehicle audio equipment that are subject to vibration. (2) Since the width of the locking portion 9 can be formed narrower than the conventional one, it becomes easy to completely tighten the cords 5A and 5B by the clamper member 6, and play occurs around the cords 5A and 5B. Moreover, since the cords 5A and 5B are fixed to the outer surface of the locking portion 2 in which burrs are less likely to occur, there is no risk of breaking the coating of the cords 5A and 5B and causing a short circuit.

Since the locking portion 9 having the tunnel-shaped insertion hole 8 can be processed and cut and raised at the same time when the speaker frame 1 is molded by the press, it is necessary to purposely form it in a separate process. There is no cost increase. Further, the locking portion 9 is not limited to one location and may be provided in a plurality of locations.

[0013]

[Effect of device]

 As described above, according to the present invention, a locking portion having a tunnel-shaped insertion hole is formed in a part of the speaker frame, and a string-shaped clamper member is inserted into the insertion hole to tighten the speaker cord. As a result, this speaker cord is fixed to the outer surface of the locking portion, so that it is possible to prevent the cord from coming off the locking portion and to avoid a short circuit due to the breaking of the coating of each cord.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a speaker cord fixing structure of the present invention.

FIG. 2 is a perspective view showing a state in which a clamper member is attached to a locking portion in the present embodiment.

FIG. 3 is a perspective view showing a conventional example.

FIG. 4 is a perspective view showing a defect of a conventional example.

[Explanation of symbols]

 1 Speaker Frame 4 Terminal Plate 5A, 5B Speaker Cord 6 Clamper Member 8 Insertion Hole 9 Locking Part

Claims (1)

[Scope of utility model registration request] 1. A locking portion having a tunnel-shaped insertion hole is formed in a part of a speaker frame, and a cord pulled out from a speaker by inserting a cord-shaped clamper member into the insertion hole is engaged by the clamper member. A speaker cord fixing structure characterized by being tightened and fixed to the outer surface of the stopper.