JPS63214099A - Cord take-up device - Google Patents

Abstract

PURPOSE:To easily exchange a cord or the like without decomposing a whole device at the time of an inspection and a repair by constituting a take-up reel consisting of a cord take-up part and a rotation operating plate so as to freely opening and closing the rotational operating part to the cord take-up part. CONSTITUTION:In a tape recorder 1, the take-up reel 25 for taking-up the cords 24a, 24b of a pair of headphones 23a, 23b is attached to a case 3 and this take-up reel 25 is constituted of the rotation operating plate 26 and the cord take-up part 27. The rotational operating part 26 is formed to a circular form by a synthetic resin and a circular hole 28 is formed at the center part thereof. The cord take-up part 27 is molded to as ring form by the synthetic resin, a cylindrical center frame part 45 and a flange part 46 of a disk form in the periphery thereof are integrally formed. The take-up reel 25 is rotatably constituted in an exposed state in the circular hole 32 of a base body 31 attached to the case 3.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cord winding device capable of winding a cord of a headphone or the like using a rotatable winding reel.

[Summary of the invention]

The present invention provides a cord winding device capable of winding up a cord for headphones or the like by rotating a winding reel, which includes a cord winding section and a rotary operation plate that can be opened and closed with respect to the cord winding section. A take-up reel is configured by the rotary operation plate so that when the rotary operation plate is closed, the rotary operation plate covers the cord winding part and the lead-out connecting part to which the cord terminal is connected, and the rotary operation plate The cord winding section is rotated integrally by the rotation of the cord.
By exposing the cord winding part and lead connection part when the rotary operation plate is open, the cord can be wound up with the take-up reel without any problem during normal use, but it is also easy to inspect and repair. This makes it extremely easy to replace cords, etc., without having to disassemble the entire unit.

[Conventional technology]

Conventionally, for example, in radio receivers, etc., there have been devices in which a take-up reel is rotatably installed in the cabinet, and an earphone cord can be wound up by rotating the take-up reel. Kaisho 6
There is a publication No. 0-11583.

In the above-mentioned known example, a reel mounting plate is provided inside the cabinet, a take-up reel for winding the earphone cord is rotatably attached to this reel mounting plate, and the take-up reel is exposed outside the cabinet. be. Then, in order to maintain an electrical connection between the earphone cord and the circuit board inside the cabinet when rotating the take-up reel, solder the lead wire of the earphone cord to the conductive pattern on the printed circuit board provided inside the take-up reel. The contact terminal provided on the circuit board is brought into contact with the conductive pattern when the take-up reel is installed in the cabinet.

[Problems to be solved by the invention] By the way, in this type of cord winding device, if the earphone malfunctions, the cord breaks, or there is poor contact between the conductive pattern and the contact terminal, etc., it is necessary to replace them. There is. However, in the above-mentioned known example, when exchanging them,
After disassembling the cabinet, the reel mounting plate had to be removed, the take-up reel had to be removed from the reel mounting plate, and the soldering between the lead wire and the conductive pattern had to be melted. Furthermore, after completing the replacement, each part must be assembled in reverse order. Therefore, during inspection and repair, work is extremely troublesome and inefficient, and serviceability is extremely poor.

Therefore, the present invention has the advantage of allowing the cord to be wound up with a take-up reel without any problem during normal use;
This makes it extremely easy to replace cords and the like during inspection and repair without disassembling the entire unit.

[Means for solving problems]

The present invention provides a rotatable cord winding section comprising a central frame section and a flange section, a rotary operation plate provided at an upper position of the cord winding section opposite to the flange section so as to be openable and closable, and the a lead-out connecting part to which a terminal of a cord to be wound is connected to the cord winding part, the cord winding part and the rotary operation plate constitute a winding reel, and the rotary operation plate is in a closed state. Then, the rotary operation plate covers the cord winding part and the lead-out lead connection part, and the cord winding part is rotated together by the rotation of the rotary operation plate, and when the rotary operation plate is open, the cord winding part is covered with the cord winding part and the lead-out lead connection part. It is configured so that the take-out portion and the lead-out lead connection portion are exposed.

[Effect]

According to the present invention, since the rotary operation plate can be opened and closed with respect to the cord winding part, when the rotary operation plate is closed, the cord winding part and the cord terminal are connected by the rotary operation plate. The lead-out lead connecting portion is covered, and the cord winding portion is rotated together with the rotation of the rotary operation plate. Therefore, during normal use, the cord can be wound up in exactly the same manner as a conventional take-up reel. On the other hand, when the rotary operation plate is opened, the cord winding part and lead-out lead connection part are completely exposed, making it extremely easy to replace the cord and lead-out lead connection part without disassembling the entire unit. can. Moreover, at this time, since the cord is connected to the lead-out lead connecting portion through its terminal, this can also be easily done without the need for soldering work.

〔Example〕

An embodiment in which the present invention is applied to a cord winding device for a small portable tape recorder will be described below with reference to the drawings.

First, as shown in FIGS. 1 and 2, a tape recorder 1 is composed of a mechanical chassis 2, a case 3, and a case lid 4. As shown in FIGS. The mechanical chassis 2 is formed to have almost the same external size as the tape cassette 5, which is a general compact cassette, and is equipped with various mechanisms necessary for a tape recorder, including a pair of left and right reel stands (not shown). ing.

The case 3 is molded from synthetic resin (for example, ABS resin), and is fixed to the mechanical chassis 2 by screws or the like so as to cover each side and lower part of the mechanical chassis 2. The case lid 4 is molded from synthetic resin (for example, ABS resin), and is rotatably attached to one side of the case 3 by a hinge (not shown) so as to open and close the upper part of the mechanical chassis 2, as shown by the dashed line. It is being Further, a cassette holder 8 is provided on one side of the mechanical chassis 2 and is rotated in conjunction with the case lid 4.
The tape cassette 5 is configured to be mounted on the mechanical chassis 2 by inserting the tape cassette 5 into the housing and closing the case lid 4. Note that 12 is the play button, 1
3 is a stop button, 14 is a fast forward button, 15 is a rewind button, and 16 is an operation knob that locks each phase inoperably. Also 1
Reference numeral 7 designates an operation knob for switching the tape type, 18 an operation knob for switching the tape running between a reciprocating mode and a repeat mode, 19 an operation button for switching the tape running direction, and 20 a headphone jack. Furthermore, 21 is an operation knob for adjusting the volume.

Next, as shown in FIG. 2, this tape recorder 1 is equipped with a pair of earphone-shaped stereo headphones 23a.
, 23b are provided in advance, and this headphone 23a
, 23b is attached to the case 3. Figures 1 and 3
As shown in the drawings and FIG. 4, the take-up reel 25 is composed of a rotary operation plate 26 and a cord winding section 27. As shown in FIG. First, the rotary operation plate 26 is made of synthetic resin (for example, ABS resin) and is formed into a circular shape, and a circular hole 28 is formed in the center thereof. Also, the rotary operation plate 26
A fitting groove 29 of a predetermined diameter is provided concentrically on the inner surface of the holder. Note that a recess 26a for a finger rest is formed in the peripheral part of the outer surface of the rotary operation plate 26.The zero-order cord winding part 27 is formed into a ring shape from synthetic resin (for example, ABS resin). , a central frame portion 45 having a cylindrical shape with a predetermined diameter, and a flange portion 46 having a disk shape on its outer periphery.
are integrally molded. The take-up reel 25 is rotatably exposed in a large-diameter circular hole 32 of a base 31 attached to the case 3.

By the way, as shown in FIGS. 1 and 4, the base 3
Reference numeral 1 constitutes a lower wall, which is one side wall of the case 3, and is formed of synthetic resin (for example, ABS resin) into a substantially rectangular plate shape. The circular hole 32 is formed in the base 3.
It is formed by an annular rib 33 integrally molded with 1. A circular recess 34 is formed inside the rib 33, and a shaft 43 is installed vertically in the center of the recess 34. Further, a plurality of elastic engagement claws 35 that can be elastically displaced are integrally molded on the peripheral portion of the lower surface of the base body 31 so as to protrude downward, and a plurality of screw insertion holes 36 are further formed in the base body 31. . On the other hand, as shown in FIGS. 1 and 4, a substantially rectangular recess 37 corresponding to the base body 31 is formed in the case 3 by a step 38, and a wall surface 37a of this recess 37 has a large diameter. A circular hole 39 is formed.

Further, a plurality of retaining holes 40 and a plurality of screw holes 41 are formed in the peripheral portion of the wall surface 37a of the recess 37. Then, each elastic engagement claw 35 of the base body 31 engages each engagement hole 40 of the recess 37.
The base body 31 is fitted into the recess 37 so as to be engaged with the screw holes 36, and the plurality of screws 42 are inserted into the screw insertion holes 36 and engaged with the screw holes 41. As shown in the figure, the base body 31 is attached to the case 3 so as to be substantially flush with the case 3. Note that the recess 34 of the base body 31 is the recess 3
7, and the lower surface of the recess 34 is substantially flush with the lower surface of the wall surface 37a of the recess 37.

Next, the take-up reel 25 is rotatably attached to the base body 31 described above. That is, as shown in FIG. 1, the cord winding part 27 is rotatably mounted on the recess 34 of the base body 31 by means of its flange part 46. The rotary operation plate 26 is mounted horizontally on the cord winding part 27 facing the flange part 46 so as to cover the recessed part 34.

At this time, the circular hole 28 of the rotary operation plate 26 is inserted into the shaft 4 of the recess 34.
3, and the fitting groove 29 of the rotary operation plate 26 is fitted into the upper end of the center frame part 45. And rotary operation board 2
A bushing 48 and a reel set screw 49 serving as attachment means are inserted from above into the circular hole 28 of No. 6, and the reel set screw 49 is threadedly fitted into the threaded portion 43a of the shaft 43. Note that an insertion groove 49a for inserting a screwdriver, a coin, etc. is formed at the upper end of the reel set screw 49.

As described above, the winding reel 25 consisting of the rotary operation plate 26 and the cord winding section 27 is configured to be freely rotatable.

Note that the outer peripheral edge of the rotary operation plate 26 is loosely fitted inside the circular hole 32. The base body 31 to which the winding wheel 25 is attached in this manner is attached to the recess 37 of the case 3 as described above.

By the way, as shown in FIG. 1, FIG. 3, and FIG. 4, a lead-out lead connecting portion is located inside the center frame portion 45 of the cord winding portion 27 between the rotary operation plate 26 and the recess 34. A slip ring mechanism 52 is provided. This slip ring mechanism 52 consists of a terminal mounting body 53, a double-sided board 54, and a board holder 55 that holds the double-sided board 54, and includes three terminals 56 on the terminal mounting body 53 and three terminal patterns on the double-sided board 54. 57, electrical rotational connection can be made at all times. When the slip ring mechanism 52 is installed between the rotary operation plate 26 and the recess 34, the rotation operation plate 26
A pair of pins 58 integrally formed on the inner surface of the board holder 55 are fitted into a pair of fitting holes 59 formed in the terminal mounting body 53 , and a pair of fitting holes 60 formed in the recess 34 are fitted into the pair of fitting holes 59 formed in the terminal mounting body 53 . It is fitted into a pair of bins 61 that are integrally molded into the. As shown in FIG. 5, three terminals 65 each consisting of a connector are fixed to the three lead wires 62 of the two hot sides of the cords 24a and 24b and the ground side common to both cords. The three terminals 65 are fitted into the three terminals 56 of the terminal mounting body 530, respectively. In addition, 3 drawn out from the circuit board 63 provided on the bottom surface of the mechanical chassis 2
Lead wires 64 are soldered to each of the three terminal patterns 57 of the double-sided board 5403. Therefore, the take-up reel 25
When the terminal mounting reel 25 is rotated, the terminal mounting body 53 is rotated together with the take-up reel 25, so that the cords 24a, 24b and the circuit board 63 are always electrically connected.

As shown in FIG. 5, the cords 24a and 24b are introduced into the slip ring mechanism 52 through a parallel rib-shaped insertion hole 66 provided in a part of the central frame portion 45 of the cord winding portion 27. In addition, as shown in FIG.
b is an insertion hole 68 provided in a part of the rib 33 of the base body 31;
is guided out of the base body 31 by. Also, the circuit board 6
The lead wire 64 from No. 3 is introduced from an opening 74 formed in the recess 34 of the base body 31 to the slip ring mechanism 52 side. By the way, as shown in FIGS. 2 to 4, the base 3
1 includes an integrally molded guide wall 69 and a pair of openings 70.
A pair of recesses 75 are formed in the recess 37 of the case 3.
is formed. These constitute a headphone storage section 71, and as shown in FIG. 2, the headphones 23a and 23b can be stored within this headphone storage section 71. In FIG. 2, reference numeral 72 denotes a lid for opening and closing the battery storage section 73 provided inside the case 3.

According to the cord winding device configured as described above, the first
As shown in the figure and FIG.
When the cord winding section 27 and the slip ring mechanism 52 are covered by the rotary operation plate 26, the cord winding section 27 is rotated together with the rotation of the rotary operation plate 26. Therefore, during normal use, the cords 24a, 24b can be wound up by the take-up reel 25 without any problem.

On the other hand, as shown in FIG. 3, when a screwdriver, coin, etc. is inserted into the insertion groove 49a of the reel set screw 49 and the reel set screw 49 is removed from the shaft 43, the rotary operation plate 26
only can be removed.

When the rotary operation plate 26 is in the open state, the cord winding section 27 and the slip ring mechanism 52 are completely exposed above the recess 34. Therefore, by removing only the rotary operation plate 26 without disassembling the whole, the cords 24a, 24
b and slip ring mechanism 52 can be replaced very easily.

Moreover, at that time, the cords 24a and 24b connect to the three terminals 65.
Since the terminal mounting body 530 is connected to the three terminals 56, the cord 24a from the slip ring mechanism 52
, 24b can also be removed very easily.

Note that, as shown in FIG. 4, in this embodiment, the take-up reel 2
5 and the slip ring mechanism 52 are attached to the base body 31
Since the cord winding device is detachably attached to the case 3, these cord winding devices can be handled as one unit. Therefore, the cord winding device can be easily assembled separately from the tape recorder 1. Further, as described above, when the base body 31 is attached to the case 3, the base body 31 is fitted into the recess 37, so there is no problem that the base body 31 makes the case 3 thicker. And since there is a base 31, the recess 3
Even if the thickness of the wall surface 37a of the case 7 is reduced, the strength of the case 3 can be maintained.

Although one embodiment of the present invention has been described above, the present invention is not limited to the embodiment, and various effective changes can be made based on the technical idea of the present invention.

For example, in the embodiment, a mounting means is shown in which the rotary operation plate is attached to the shaft using a reel set screw, but various structures can be applied to the mounting means that allows the rotary operation plate to be opened and closed freely. Further, the lead-out lead connection portion is not limited to the slip ring mechanism of the embodiment, and various structures can be applied. Further, in the embodiment, the take-up reel is attached to the base body, but the take-up reel may be attached directly to the case.

Note that the present invention is not limited to a cord winding device for a headphone cord winding-type portable compact tape recorder, but is applicable to cord winding devices for various types of audio equipment and the like.

〔Effect of the invention〕

The present invention provides a take-up reel consisting of a cord winding section and a rotary operation plate so that the rotary operation plate can be opened and closed with respect to the cord winding section. The cord winding part can be rotated together with the cord winding part while covering the winding part and the lead-out lead connecting part. Therefore,
During normal use, the cord can be wound up by the take-up reel without any problem. On the other hand, when the rotary operation plate is in the open state, the cord winding part and the lead-out lead connecting part can be completely exposed. Therefore, in the event of a malfunction of the earphones or a breakage of the cord, the cord and lead-out connection part can be replaced extremely easily by opening the rotary operation panel without disassembling the entire unit, and during inspection and repair. It is possible to significantly improve the service quality. Moreover, since the cord is connected to the lead-out lead connecting portion through the terminal at that time, the work can be performed extremely easily. In a further development, it is possible to allow users to exchange codes and the like by themselves, making it extremely convenient without requiring any service.

[Brief explanation of the drawing]

The drawings show an embodiment in which the present invention is applied to a cord winding device for a small portable tape recorder, in which FIG. 1 is a sectional view of the entire tape recorder showing the rotary operation plate in the closed state, and FIG. 2 is a sectional view of the entire tape recorder. is a perspective view of the same as above, FIG. 3 is a perspective view showing the rotary operation plate in the open state, FIG. 4 is a perspective view showing the rotary operation plate, the cord winding part, and the lead-out lead connection part, and FIG. 5 is the view of the lead-out lead. FIG. 3 is a plan view showing the connection of the terminal of the cord to the connection part. In addition, in the symbols used in the drawings, 1---------1. Tape recorder 24a, 2
4b ・------=Code 25・---1---・
−−−−1−−−−・Take‐up reel 26−・−−−−−
−−−・−・Rotary operation plate 27−−−−−−−−・−・−
−−−−−・Cord winding section 43−・−・−・−・・−
・Shaft 45------------ Center frame part 46・-
・−・・−−−−−・−・Flange part 49−・−−−
---・----1--Reel set screw 52------
−−−−−−−−−−−・Slip ring mechanism (output lead connection part) 65−−・−−−−−−1−−−−−−−
−・It is a terminal.

Claims (1)

[Scope of Claims] A rotatable cord winding section consisting of a central frame section and a flange section, and a rotary operation plate provided at an upper position of the cord winding section opposite to the flange section so as to be openable and closable. , a lead-out connecting part to which a terminal of a cord to be wound is connected to the cord winding part, a take-up reel is configured by the cord winding part and the rotary operation plate, and the rotary operation plate In the closed state, the rotary operation plate covers the cord winding part and the lead-out lead connection part, and the rotation of the rotary operation plate rotates the cord winding part together, and when the rotary operation plate is in the open state, A cord winding device configured to expose a cord winding portion and the lead-out lead connection portion.