JPH0782788B2 - Tape player with radio receiver - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio receiver having a cabinet in which one cabinet forming body and the other cabinet forming body are rotatably attached to each other via a hinge mechanism, and a radio receiver is incorporated in one cabinet forming body. A tape player with a machine.

[0002]

2. Description of the Related Art Conventionally, a small-sized tape player has been used in which a tape cassette in which a stereo sound signal is recorded is used as a recording medium and a stereo reproduction is heard by headphones.

This small-sized tape player is provided in such a size that it can be easily carried with one hand, and further downsized to a size that can be stored in a pocket.

In this type of tape player, there is also provided a tape player with a radio receiver in which a radio receiver section is incorporated in the recorder main body so as to enable reception of radio broadcasts. In this tape player with a radio receiver, an audio amplifying section such as a headphone amplifier and a power source section of the radio receiver section and the tape player section are shared so that the player body is prevented from increasing in size.

[0005]

However, if the radio receiver section is built in, it is necessary to provide a space for housing the radio receiver section in the recorder main body, which increases the size of the player main body. It becomes extremely difficult to prevent.

[0006] In order to prevent the player body from increasing in size and allow the radio receiver section to be built in, the radio receiver section is incorporated into one of a pair of cabinet forming bodies that form the player body. What has been done is proposed.

[0007] By the way, a tape player with a radio receiver is also provided which is capable of receiving not only a single band of AM broadcast or FM broadcast but also multi-band radio broadcast, like a single radio receiver. Has been done. In this type of tape recorder with a radio receiver, a reception band switching mechanism is provided to select a desired reception band.

However, if a radio receiver section that enables reception of multi-band radio broadcasts is built in and a reception band switching mechanism is further provided, the reception band switching mechanism is provided in addition to the storage space of the radio receiver section. Therefore, it becomes more difficult to reduce the size of the tape player while maintaining the receiving sensitivity of the radio receiver section.

Further, by providing the receiving band switching mechanism, a display device for displaying the receiving band selected according to the switching operation of the receiving band switching mechanism is required.

Therefore, the present invention makes it possible to realize the further miniaturization of the electronic equipment device by effectively utilizing the small space of the multifunctional electronic equipment device.
The display of the switching operation of the switch is easily visible,
It is also proposed for the purpose of providing a tape player with a radio receiver that realizes improved operability.

[0011]

In the tape player with a radio receiver according to the present invention, in order to achieve the above-mentioned object, one and the other cabinet forming bodies are rotatably attached to each other via a hinge mechanism. , The cabinet is constructed by closing the lid, and the tape cassette can be loaded and unloaded by opening the lid. The one cabinet forming body has a frame body having an opening and an opening of the frame body. And a perspective panel plate made of a synthetic resin attached so as to close the housing, located in the cabinet forming body of the one side, and at least a bar antenna, a tuning device, and a band changeover switch are attached, and the panel panel is substantially parallel to the perspective panel plate. A printed circuit board is provided to face the radio panel, and the radio panel tuning display and the magnetic field inside the mounted tape cassette are displayed on the transparent panel board. Adjusting the tuning device to the one cabinet forming body, leaving a transparent part that can see through the running state of the loop and leaving it as a mask part coated with an opaque material so that the inside cannot be seen through to other parts The operator and the operator of the band changeover switch are exposed.

[0012]

In the tape player with a radio receiver according to the present invention, the bar antenna is arranged in the cabinet forming body provided with the see-through panel plate made of synthetic resin, which is attached so as to close the opening of the frame body. Therefore, it is possible to prevent the radio wave entering the bar antenna from being shielded.

Further, the printed circuit board arranged in the cabinet forming body is covered with a transparent panel plate which is a mask portion coated with an opaque material so that the inside cannot be seen through to other parts except the transparent portion. Therefore, visual inspection from outside the cabinet is restricted.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the drawings. The tape player with a radio receiver shown here has a width of 110 mm, a height of 70 mm, and a depth (thickness) when the tape cassette shown in FIG. 2 is not mounted.
Is formed to have a size of 22 mm.

This tape player with a radio receiver is
A cabinet that constitutes the player main body is provided. This cabinet includes a cassette lid 2 that constitutes one cabinet forming body and the other cabinet forming body that is rotatably supported by the cassette lid 2 via a hinge mechanism 25. It is composed of the player main body 1 which constitutes it. A player section is arranged in the player main body 1.

As shown in FIG. 3, the player body 1 has a main housing 3 formed by punching and bending a metal plate.
And a sub-housing 4 formed by punching and bending the same metal plate that can be slid in and out of the main housing 3. This sub-housing 4
4 is pulled out from the main housing 3 so that
As shown in, the tape cassette mounting portion 5 is formed on the upper surface side of the player main body 1. This tape cassette mounting part 5
Is configured to be large enough to mount the standard size tape cassette C.

In this tape player, when the sub housing 4 is pulled out from the main housing 3,
The height is about 82 mm. It should be noted that a tape player in which a tape cassette mounting portion 5 that enables mounting of a standard-sized tape cassette C in a state where the sub housing 4 is pulled out from the main housing 3 is configured on the upper surface side of the player body 1. Since the applicant of the present application has been proposed in Japanese Utility Model Laid-Open No. 59-14106, its detailed description will be omitted.

On the side of the main housing 3 which constitutes the player main body 1 of this tape player, a tape running drive mechanism, a mode selection switching mechanism and other mechanism parts necessary for constructing the tape player, an audio amplifier (headphone amplifier),
A power supply unit and the like are provided. That is, the main housing 3
Is provided with a pair of reel drive shafts 8, 8 which engage with a pair of reel hubs around which the magnetic tape of the tape cassette C is wound. These reel drive shafts 8, 8
Is disposed so as to protrude from the bottom plate 7 of the tape cassette mounting portion 5 such that the tip end side portion with which the reel hub engages protrudes into the tape cassette mounting portion 5, and is disposed in the main housing 3. It is selectively driven by a reel drive motor according to each operation mode such as a reproduction mode, a fast-forward mode or a rewind mode.

Further, one side of the main housing 3 projects into the tape cassette mounting portion 5 and holds a magnetic tape in cooperation with a pinch roller (not shown), and the magnetic tape runs at a constant speed. A capstan shaft 6 that constitutes a tape running mechanism is provided. The capstan shaft 6 is rotationally driven by a capstan drive motor provided in the main housing 3.

On the front side of the main housing 3,
A head accommodating portion 10 accommodating a reproducing magnetic head for reproducing an audio signal recorded on the magnetic tape by sliding contact with the magnetic tape, and a battery accommodating portion for accommodating a dry battery as a driving power source in and out freely 11 is the main housing 3
Are provided along the longitudinal direction of. The magnetic head accommodated in the head accommodating portion 10 is brought into a state of sliding contact with a magnetic tape which projects and travels in the tape cassette mounting portion 5 in the reproducing operation mode. In addition, a headphone jack 12 into which a connection plug for headphones or earphones is inserted and connected is provided at an end of the head housing section 10.

Furthermore, on the outer surface on one side of the main housing 3, a reproduction mode selection button 13 and a stop button 1 are provided.
4. A fast-forward mode selection button 15 and a rewind mode selection button 16 are arranged in parallel. Further, a volume volume operation knob 17 is rotatably provided at a corner portion on the bottom of one side of the main housing 3. Further, in the main housing 3, a switching operation knob 18 for switching between the tape player section and the radio receiver section and a noise reduction switching operation knob 20 are arranged in parallel.

On the other hand, a cassette lid 2 for closing the tape cassette mounting portion 5 is rotatably attached to a sub housing 4 slidably provided with respect to the main housing 3 via a hinge mechanism 25. This cassette lid 2
It is composed of a lid frame body 21 and a see-through panel 26 made of a transparent or semi-transparent synthetic resin plate. The lid frame body 21
Is a front plate 22a, side walls 22b and 22c provided on both sides of the front plate 22a, and a rear wall 22d provided on the back side of the front plate 22a.
And synthetic resin are integrally molded.

A see-through panel 26 is joined to the surface of the front plate 22a of the lid frame 21. The transparent panel 26 is provided with a tape remaining amount display window 27 as a see-through portion at a substantially central portion so that the tape remaining amount of the tape cassette C mounted in the tape cassette mounting portion 5 can be seen through from the outside. . On the side of the tape remaining amount display window 27, a reception frequency scale of the radio receiver section is formed by printing. The reception frequency scale in this embodiment is
It is composed of an AM frequency scale section 28, an FM frequency scale section 29, and a three-band frequency scale section of a television broadcast channel scale section 30. Further, on the surface of the front plate 22a, band switching display windows 31, 32, 33 are provided corresponding to the scale portions 28, 29, 30 and,
A dial pointer display window 34 is provided along each of the scale portions 28, 29, 30.

The portion of the see-through panel 22 except the tape remaining amount display window 27, the dial pointer display window 34, and the band switching display windows 31, 32, 33 is coated with an opaque material on the other portions. It is printed so that the inside cannot be seen through.

The perspective panel 22 constructed as described above.
Is a ridge portion 3 provided on the outer periphery of the surface of the cassette lid 22.
The peripheral edge is positioned by 5 and is bonded to the lid frame body 21 with an adhesive.

The remaining tape amount display window 27 of the lid frame 21
As shown in FIG. 1, a portion corresponding to is formed with a cutout portion 36 so that the inside can be seen through. Further, a portion corresponding to the dial pointer display window 34 is also cut out as a long hole 37, and a portion corresponding to the band switching display windows 31, 32 and 33 is also formed as a cutout portion 73.

Further, as shown in FIGS. 1 and 5, the cassette lid 2 is provided with a tuner section for each of AM and FM, an intermediate frequency amplification circuit, a detection circuit, an FM stereo demodulation circuit, etc. An electric circuit board 41 on which an electronic circuit component 40 such as an IC circuit component that constitutes the receiver unit is mounted is arranged. An antenna mounting notch 43 for arranging the bar antenna 42 for receiving the AM wave so as to be housed therein is formed in a substantially central portion of the electric circuit board 41. A pair of antenna holders 44 and 45 made of nylon or the like are mounted on the surfaces of the antenna mounting notch 43 that face each other in the longitudinal direction. The antenna holders 44 and 45 are attached to the electric circuit board 41 by sandwiching and supporting the respective ends of the bar antenna 42, and by sandwiching a part of the electric circuit board 41 by the integral grasping pieces 47 and 48.

As described above, since the bar antenna 42 is mounted so as to be housed in the antenna mounting notch 43 formed in the electric circuit board 41, it corresponds to the thickness of the electric circuit board 41. The space can be used to dispose on the inner side surface of the cassette lid 2, and space can be saved.

The electric circuit board 41 to which the bar antenna 42 is attached is attached to the inner surface side of the cassette lid 2 by engaging the engaging hole 52 with the positioning projection 51 formed by standing up a part of the cassette lid 2. As a result, the mounting position is positioned. In addition, the electric circuit board 4
As shown in FIGS. 5 and 6, 1 is attached to the cassette lid 2 by joining the surface on which the electronic circuit component is not mounted to the back surface side of the front plate 22a of the lid frame body 21 with an adhesive member such as a double-sided adhesive tape. It will be done.

The portion of the front plate 22a of the lid frame 21 where the bar antenna 42 is located is the tape remaining amount display window 2.
A cutout portion 56 that is continuous with the cutout portion 36 corresponding to 7 is provided so as to ensure a storage space for the bar antenna 42.

The radio receiving circuit component 4 formed on the electric circuit board 41 attached to the cassette lid 2 as described above.
Reference numeral 0 denotes a power circuit (not shown) and an audio amplifier (headphone amplifier) which are shared with the tape player unit formed in the player main body 1 by the flexible printed wiring boards 54 and 55 arranged across the hinge mechanism 25. It is connected to the.

By the way, since predetermined wiring patterns are printed on the flexible printed wiring boards 54 and 55 respectively, it is advantageous in connection processing and space factor as compared with the case where a wire material such as a connecting cord is used. Becomes That is, when wires such as connecting cords are used, the wires are entangled with each other, and the wires are covered with an insulating material so that the volume is large, but the flexible printed wiring boards 54 and 55 are used. This solves such a problem.

The FM wave receiving antenna is composed of a connection cord for headphones or earphones connected to the headphone jack 12.

Further, on the inner surface side of one side wall 22b of the lid frame 21, a tuching mechanism 57 is arranged.
The tuning mechanism 57 is a slide type volume 56 that varies the voltage of the varicap that varies the tuning capacitance.
And the pulleys 58, 59, 60 and a tuning knob 63 projecting to the front side through a through hole 64 formed in the cassette lid 2. The lever 62 of the volume 56 and the pulley 5
The tuning resistor 63 is rotatably operated by laying the dial thread 62 over the 8, 59, 60 and the tuning knob 63, and the variable resistor of the volume 56 is variably operated to perform the tuning operation. It is designed to be played.

In the middle of the dial thread 62,
A dial pointer 63a is attached. The dial pointer 63a moves so as to face the dial pointer display window 34, and displays the predetermined frequency scale of each dial scale portion 28, 29, 30 as a pointer.

Then, the cassette lid 2 and the electric circuit board 41
A switch changeover operation lever 66, which constitutes a switch changeover mechanism for changing over the band changeover switch 65 attached to the electric circuit board 41, is arranged between them. The switch switching operation lever 66 is formed of a synthetic resin as a thin plate-shaped elongated body, has a concave engaging portion 68 at one end, and has band switching display windows 31, 32, 33 at a wide portion on the other end side. A display mark 69 that faces is printed. Further, the switch switching operation lever 66
As shown in FIG. 7, an operation knob 72 for slidingly operating the switching operation lever 66 is provided at a substantially central portion of the projection.

In the switch changeover operation lever 66 thus constructed, the engaging portion 68 is connected to the band changeover switch 65.
Is provided in a sliding groove 73 formed by cutting out a part of the lid frame body 21 by engaging with the operator 67 of the operation knob 67, and the operation knob 72 is projected from an elongated hole 74 formed in the cassette lid 2, It is movable within the range of the sliding groove 73 and is arranged between the transparent panel 26 of the cassette lid 2 and the electric circuit board 41. At this time, the display mark 69 provided on the other end side of the switch switching operation lever 66 indicates that the band switching display windows 31, 32, 33.
Is located at a position corresponding to any one of the above.

Then, the switch switching operation lever 6
6 performs a switching operation of the band switching switch 65 by gripping the operation knob 72 and sliding operation, and in response to this movement, the display mark 69 corresponds to a predetermined band band switching display window 31, 32 and 33, the selected band is displayed.

As described above, the thin plate switch changeover operating lever 66 is made to face the inside of the sliding groove 73 formed by cutting out a part of the cassette lid 2, and is laminated on the inner surface side of the cassette lid 2. The band switching display mechanism, which is arranged between the transparent panel 26 and the electric circuit board 41, is constructed without thickening the cassette lid 2. Further, since this band switching display mechanism does not use an electric display means, it does not require power consumption at all.

[0040]

As described above, in the tape player with a radio receiver according to the present invention, the bar antenna is provided in the cabinet forming body which is provided with the see-through panel plate made of synthetic resin so as to close the opening of the frame body. Since the player is arranged, it is possible to prevent the radio wave incident on the bar antenna from being blocked while realizing the miniaturization of the player itself.
It is possible to improve the reception sensitivity of the radio receiver.

Particularly, since the bar antenna is housed in a cabinet forming body provided with a see-through panel plate made of synthetic resin which is attached so as to close the opening of the frame body, the frame body shields radio waves such as metal from the frame body. Even when it is made of such a material, it is possible to prevent the incoming radio wave from being shielded and maintain a sufficient receiving sensitivity.

Further, the printed circuit board arranged in the cabinet forming body is covered with a transparent panel plate serving as a mask portion coated with an opaque material so that the inside cannot be seen through to other parts except the transparent portion. Therefore, since the visual observation from the outside of the cabinet is restricted, it is possible to visually check and confirm a necessary display such as the tape running state while improving the appearance of the tape player.

Further, since the operator for adjusting the tuning device constituting the radio receiver and the operator for the band changeover switch are exposed on the cabinet forming body, the reception of the radio receiver with the cabinet closed is performed. Adjustment is possible and operability is improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a tape player with a radio receiver to which the present invention is applied.

FIG. 2 is a perspective view of a tape player with a radio receiver in a non-loaded state of a tape cassette.

FIG. 3 is a perspective view of a tape player with a radio receiver in a state in which a tape cassette is loaded.

FIG. 4 is a perspective view of a tape player with a radio receiver with a cassette lid opened.

FIG. 5 is a perspective view showing a state in which an electric circuit board is attached to a cassette lid.

FIG. 6 is a cross-sectional view of a cassette lid that constitutes a tape player with a radio receiver.

FIG. 7 is a perspective view showing a switch switching operation lever which constitutes the present invention.

[Explanation of symbols]

 1 Player Main Body 2 Cassette Lid 21 Lid Frame 26 Front Panel 31, 32, 33 Band Change Display Window 40 Electronic Circuit Parts 41 Electric Circuit Board 42 Bar Antenna 65 Band Change Switch 66 Switch Change Operation Lever 68 Engagement Part 69 Display Mark 72 Operation knob

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-56-111101 (JP, A) Actually opened 58-489839 (JP, U) Actually opened 57-198708 (JP, U)

Claims (1)

[Claims] 1. A cabinet is constructed by rotatably attaching one and the other cabinet forming bodies to each other via a hinge mechanism and closing the lid so that a tape cassette can be loaded and unloaded by opening the lid. The cabinet forming body on the one side includes a frame body having an opening and a see-through panel plate made of a synthetic resin attached so as to close the opening of the frame body, and is located in the cabinet forming body on the one side. Then, at least the bar antenna, the tuning device, and the band changeover switch are attached, and a printed board is provided so as to face the transparent panel plate substantially in parallel, and the tuning display of the radio receiver and the tape mounted on the transparent panel plate. An opaque material was attached to the other parts so that the inside of the cassette could not be seen through, leaving a see-through part through which the running state of the magnetic tape in the cassette can be seen. A tape player with a radio receiver, which does not serve as a mask portion, and in which one of the cabinet forming bodies is exposed with an operator for adjusting the tuning device and an operator of a band changeover switch.