JPH0675358B2 - 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 tape player with a radio receiver, which has a built-in radio receiver and is equipped with a receiving band switching mechanism for the radio receiver.

[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 is built in the player body so that the radio broadcast can be received. This tape player with a radio receiver is configured to share the radio receiver and an audio amplification section such as a headphone amplifier of the tape player section and a power supply section, and is configured to prevent the player body from becoming large.

[0005]

In the tape player having the built-in radio receiver as described above, in order to operate the radio receiver together with a plurality of operation buttons for operating the tape player section. A plurality of operating knobs are provided.

As described above, in the tape player having the radio receiver built therein, a large number of operation buttons and operation knobs are provided, so that an erroneous operation is likely to occur.

In view of this, the present invention eliminates erroneous operation of a tape player with a radio receiver, which is multifunctionalized by incorporating a radio receiver and is provided with a large number of operation buttons and operation knobs, and improves operability. At the same time, it was proposed for the purpose of improving the receiving sensitivity of the built-in radio receiver and providing a tape player with a radio receiver which is easy to assemble.

[0008]

In order to achieve the above-mentioned object, a tape player with a radio receiver according to the present invention has a drive unit such as a capstan or a pinch roller for running and operating a magnetic tape, and the above-mentioned. A housing body having a tape constant-speed feed mode selection button, a fast-forward mode selection button, and a rewind mode selection button for switching the running state of the magnetic tape; A lid for accommodating the tape cassette is provided together with the main body, and a band switching knob and a frequency tuning knob of the radio receiver are provided on the lid.

[0009]

In the tape player with a radio receiver according to the present invention, a tape constant speed feed mode selection button, a fast feed mode selection button and a rewind mode selection button for switching the running state of the magnetic tape are provided on the housing body side. The radio receiver band switching knob and the frequency tuning knob are provided on the lid that can be opened and closed by turning the tape player section operation button and the radio receiver operation knob separately. Will be installed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete embodiment of a tape player with a radio receiver according to the present invention will be described below with reference to the drawings.
A tape player with a radio receiver according to the present invention is shown in FIG.
When the tape cassette shown in Fig.
The size is 0 mm, the height is 70 mm, and the depth (thickness) is 22 mm.

The tape player is provided with a housing body 1 which constitutes a tape player portion, and a cassette lid 2 which is a lid body attached to the housing body 1 so as to be rotatable and openable and closable. .

The housing body 1 is, as shown in FIG. 3, 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 FIG. 3, the tape cassette mounting portion 5 is formed on the flat surface side of the housing body 1. This tape cassette mounting part 5
Is formed so as to have a planar shape of a size sufficient for mounting the standard size tape cassette C, that is, a size substantially corresponding to the planar shape of the 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. A tape player in which a tape cassette mounting portion 5 that allows 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 flat side of the housing body 1. Is the actual development Sho 59-14106
Since the applicant of the present application has been proposed in this publication, its detailed description is omitted.

On the side of the main housing 3 which constitutes the housing body 1 of this tape player, a drive unit such as a tape running drive mechanism, a mode selection switching mechanism, etc., an audio amplifier (headphone amplifier), and a power source necessary for constructing the tape player. Parts and the like are provided. That is, the main housing 3 is provided with a pair of reel drive shafts 8, 8 that 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 project from the bottom plate 7 of the tape cassette mounting portion 5 so 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. The reel drive motor selectively drives the 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 is made to project into the tape cassette mounting portion 5 and holds a magnetic tape in cooperation with a pinch roller (not shown), and the magnetic tape is run 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 serving 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.

Further, on the outer surface on one side of the main housing 3, a tape constant speed feed mode selection button 13, a stop button 14, a fast feed mode selection button 15 and a rewind mode selection button for switching the running state of the magnetic tape. 16
Are arranged in parallel. Further, at the corner of the bottom of the main housing 3 on one side, the volume control knob 1
7 is rotatably arranged. 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, in the sub housing 4 slidably provided with respect to the main housing 3, the cassette lid 2 which is a lid for accommodating the tape cassette C mounted in the tape cassette mounting portion 5 together with the main housing 3 is provided. Are rotatably attached via a hinge mechanism 25. The cassette lid 2 includes a lid frame 21 and a front panel 26. The lid frame body 21 includes a front plate 22a and side walls 2 provided on both sides of the front plate 22a so as to be planted.
2b and 22c and a back wall 22d provided so as to stand on the back side of the front plate 22a are integrally formed of synthetic resin.

That is, the cassette lid 2 is formed in a substantially flat plate shape which is large enough to cover the flat surface of the tape cassette C and close the tape cassette mounting portion 5.

A front panel 26 made of a transparent or translucent synthetic resin plate is joined and arranged on the surface of the front plate 22a of the lid frame 21. This front panel 2
6, a tape remaining amount display window 27 formed as a see-through window through which the tape remaining amount of the tape cassette C mounted in the tape cassette mounting portion 5 can be seen through from the outside is provided at a substantially central portion. As shown in FIG. 2, the tape remaining amount display window 27 allows the magnetic tape wound around the pair of tape reels of the tape cassette C mounted in the tape cassette mounting portion 5 to be seen through. It is formed in a size large enough to allow a part of the reel to be seen through at the same time.

On the side of the remaining tape display window 27, a reception frequency scale of the radio receiver section is formed by printing. The reception frequency scale in this embodiment is A
It is composed of an M 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 parts 28, 29, 30 and the scale parts 28, 29, 30 are also provided. A dial pointer display window 34 is provided along the line.

It should be noted that, except for the portion where the tape remaining amount display window 27, the dial pointer display window 34, and the band switching display windows 31, 32, 33 of the front panel 22 are provided, the other portions are printed with an opaque paint inside. It is designed so that you cannot see through.

Front 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.

Further, the remaining tape amount display window 2 of the lid frame 21
As shown in FIG. 1, a cutout hole 36 is formed in a portion corresponding to 7 so that the inside can be seen through. Further, the portion corresponding to the dial pointer display window 34 is also cut out as a long hole 37, and the band switching display windows 31, 32, 33 are further provided.
The portion corresponding to is also formed as a notched hole 73.

On the inner surface of the cassette lid 2, as shown in FIG.
Further, as shown in FIG. 5, an electronic circuit component 40 such as an IC circuit component that configures a radio receiver unit including a tutor unit for each of AM and FM, an intermediate frequency amplification circuit, a detection circuit, and an FM stereo demodulation circuit is provided. A mounted printed circuit board 41 is provided. This printed circuit board 4
An antenna mounting cutout hole 4 for accommodating a bar antenna 42 for receiving an AM wave is provided in a substantially central portion of the antenna 1.
3 is drilled. Notch hole 43 for mounting this antenna
A pair of antenna holders 44 and 45 made of nylon or the like are attached to the surfaces facing each other in the longitudinal direction. These antenna holders 44 and 45 are attached to the printed circuit board 41 by sandwiching and supporting the respective ends of the bar antenna 42, and by sandwiching a part of the printed circuit board 41 by the integral sandwiching pieces 47 and 48.

As described above, the bar antenna 42 has a notch 43 for mounting an antenna, which is formed in the printed circuit board 41.
Since it is mounted so as to be housed inside, the space corresponding to the thickness of the electric circuit board 41 can be utilized to dispose on the inner side surface side of the cassette lid 2, thus saving space. it can.

In the printed circuit board 41, the lid frame 21 is connected to the antenna mounting notch 43.
Through hole 83 corresponding to the notch hole 36 opened in
Has been established.

As described above, in the printed circuit board 41 to which the bar antenna 42 is attached, the engaging holes 52 are engaged with the positioning projections 51 formed by standing up a part of the cassette lid 2 and the inner surface side of the cassette lid 2 is described. By being attached to
The mounting position is positioned. As shown in FIGS. 5 and 6, the printed circuit board 41 has a surface on which electronic circuit components are not mounted, which is bonded to the back surface side of the front plate 22a of the lid frame body 21 by an adhesive member such as a double-sided adhesive tape. Is attached to the cassette lid 2.

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.

As described above, the front panel 2 is attached to the lid frame 21.
As shown in FIGS. 1 and 6, the cassette lid 2 configured by joining 6 and joining the printed circuit board 41 to the inner surface side of the lid frame body 21 has a thin plate-like front panel 26, The lid frame 21 and the printed circuit board 41 have a three-layer structure. The front panel 26 having this three-layer structure,
The lid frame body 21 and the printed circuit board 41 are provided with a tape remaining amount display window 27, a cutout hole 36, and a through hole 83 so as to communicate with each other.
7, the magnetic tape wound around the pair of tape reels of the tape cassette C mounted in the tape cassette mounting portion 5 through the notch hole 36 and the through hole 83 is seen through, and the state of the tape cassette C is visually observed from the outside. It is possible.

A cover plate 76 is attached to the inner side surface of the lid frame 21 so as to cover the printed circuit board 41. The cover plate 76 is formed in a thin plate shape, and a notch window portion 84 is opened at a substantially central portion corresponding to the through hole 83 of the printed circuit board 41. The cutout window portion 84 is formed to have a size so as to face a portion of the tape cassette C mounted in the tape cassette mounting portion 5 across a pair of tape reels. It is formed to have a size substantially corresponding to the quantity display window 27.

The radio receiving circuit component 40 formed on the printed circuit board 41 attached to the cassette lid 2
Is a power supply circuit or an audio amplifier (headphone amplifier) not shown which is shared with the tape player unit formed in the housing body 1 by the flexible printed wiring boards 54 and 55 arranged across the hinge mechanism 25. It is connected.

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 frequency tuning knob 63 protruding toward the front side through the pulleys 58, 59, 60 and the through hole 64 formed in the cassette lid 2.
The dial 56 is wound around the lever 62 of the volume 56, the pulleys 58, 59 and 60, and the frequency tuning knob 63 to rotate the frequency tuning knob 63, thereby rotating the volume 56.
The variable resistor is variably operated and the tuching operation is performed.

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.

Between the cassette lid 2 and the printed 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 printed circuit board 41 is arranged. There is. 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, as shown in FIG. 7, a band switching knob 72 for slidingly operating the switching operation lever 66 is provided at a substantially central portion of the switch switching operation lever 66.

In the switch changeover operation lever 66 thus constructed, the engaging portion 68 is connected to the band changeover switch 65.
It is arranged 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 band switching knob 7
2 is made to project from an elongated hole 74 formed in the cassette lid 2 and is movable within the range of the sliding groove 73.
Is disposed between the front panel 26 and the printed 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 window 31,
It is located at a position corresponding to any one of 32 and 33.

Then, the switch switching operation lever 6
6 performs a switching operation of the band switching switch 65 by gripping the band switching knob 72 to perform a sliding operation, and the display mark 69 corresponds to this movement and the band switching display window 31 corresponding to a predetermined band. , 32, 3
3 and display the selected band.

[0039]

As described above, in the tape player with the radio receiver according to the present invention, the tape constant speed feed mode selection button, the fast feed mode selection button and the rewind mode selection button for switching the running state of the magnetic tape are provided on the housing body. Since the lid body which is provided on the side of the housing and can be opened and closed by rotating is provided with the band switching knob and the frequency tuning knob of the radio receiver, the operation buttons on the tape player side and the radio receiver side are provided. Since the operation knob and the operation knob are clearly separated from each other, it is possible to surely operate the radio receiver and the tape player as desired without erroneous operations.

Further, since the radio receiver section is concentrated on the lid side and the tape player section is concentrated on the housing body side, the radio receiver section and the tape player section having different functions are provided. Can be assembled independently, which facilitates manufacturing.

Further, in the above-mentioned embodiment, since the radio receiver is built into the lid side, the chassis constituting the drive portion of the tape player disposed in the housing body is made of metal. However, it is possible to prevent the bar antenna forming the AM section of the radio receiver arranged on the lid side from being adversely affected. That is,
It is possible to prevent deterioration of the reception sensitivity of the bar antenna.

[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 when the tape cassette is not loaded.

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 a printed 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 tape player.

[Explanation of symbols]

 1 Housing body 2 Cassette lid 6 Capstan shaft 8 Reel drive shaft 13 Tape constant speed feed mode selection button 15 Fast forward mode selection button 16 Rewind mode selection button 63 Frequency tuning knob 72 Band switching knob

Claims (1)

[Claims] 1. A tape constant-speed feed mode selection button, a fast-forward mode selection button, and a rewind mode selection button which have a drive unit such as a capstan or a pinch roller for running the magnetic tape and switch the running state of the magnetic tape. A housing body having, and mounted on the housing body so as to be rotatable and openable and closable,
A tape player with a radio receiver, comprising: a housing for housing a tape cassette together with the housing body; and a band switching knob and a frequency tuning knob of the radio receiver provided on the lid.