CN86100833A

CN86100833A - The tuner that wireless cassette recorder is housed

Info

Publication number: CN86100833A
Application number: CN86100833.2A
Authority: CN
Inventors: 阿部喜司
Original assignee: Sanyo Electric Co Ltd
Current assignee: Sanyo Electric Co Ltd
Priority date: 1985-02-20
Filing date: 1986-02-20
Publication date: 1986-08-20
Also published as: JPS61192097A; JPH0327997B2; CN1003892B

Abstract

Be equipped with in the wireless cassette recorder, be installed on this sound-track engraving apparatus main body, be used for hiding the Cang Gai of sound-track engraving apparatus main body cassette holder.In the main body, the driving mechanism and a circuit (as the radio reception circuit) of cassette recorder is housed.In this cassette recorder, also have a tuner, comprise a channel selection knob, a tuning pointer and many such as spring, tuned rope, conduit and other similar elements.The channel selection knob is used to select required channel; Tuning pointer is placed in the storehouse movably and is covered, can move it by handling the channel selection knob, thus the indication receive frequency; Spring, tuned rope, guide pipe and other similar elements are used for the rotation of channel selection knob is delivered to tuning pointer.

Description

The tuner that wireless cassette recorder is housed

The present invention relates generally to that is equipped with a wireless cassette recorder, in this cassette recorder, a boxlike recording/displaying device and a radio system are combined together.The invention particularly relates to tuner that is used to indicate receive frequency in this sound-track engraving apparatus.

Recently, though a kind of earphone-type stero set device that is called as begins to be widely used, this acoustics makes people listen to audio reproduction on the tape by an earphone.But, because this acoustics generally is to be carried on one's body to use, so its dimensional requirement is little.One of pattern of above-mentioned this acoustics is, for example, and disclosed pattern in Japanese Utility Model 59-135594.In the acoustics of this pattern, independent tuning parts that are called tuning box replace tape to be placed in the cassette holder of magnetic tape cassette, to receive radio broadcasting.This tuning part has such structure, and in this structure, radio receiver circuit is placed in the much the same casing of the profile of and magnetic tape cassette.

Have such inconvenience this by using tuning box to receive in the acoustics of radio signals, promptly tuning box must carry by employed magnetic tape cassette in cassette recorder always.Though, a kind of cassette recorder small-sized, that radio (radio system is equipped with in its inside) is housed trends towards popularizing recently, to eliminate above-mentioned inconvenience, still, it compares with the acoustics of only being made up of a cassette recorder, still has larger-size shortcoming.This is because in its radio system, needs a tuner is installed, so that be used to refer to receive frequency.

Therefore, a fundamental purpose of the present invention provides a tuner that has improved, with obtain size little, wireless cassette recorder is housed.In the tuner that this has improved, tuning pointer that is used to indicate receive frequency is placed in movably to be used to hide the cassette holder storehouse of placing tape and to cover.

Another object of the present invention provides a kind of tuner of above-mentioned pattern, the tuner of this pattern simple in structure, reliability height.

In order to reach above-mentioned and other purpose, provide such one wireless cassette recorder is housed according to a most preferred embodiment of the present invention, this sound-track engraving apparatus has one and is used for hiding the Cang Gai that is positioned at this sound-track engraving apparatus main body cassette holder part, a tape transport mechanism, a radio reception circuit and the tuner that wireless cassette recorder is housed.Above-mentioned Cang Gai pivotally is installed on this sound-track engraving apparatus main body; Above-mentioned tape transport mechanism and radio reception circuit are installed in the main body of this sound-track engraving apparatus; Above-mentioned tuner comprises: a channel selection knob that is placed on this sound-track engraving apparatus main body, one is installed in tuning pointer and gearing that above-mentioned storehouse covers movably.Above-mentioned channel selection knob is used to select required channel; Above-mentioned tuning pointer can select knob to be moved by operation channel, indicates receive frequency with this; Above-mentioned gearing is used for tuning pointer is passed in the rotation of channel selection knob.

Above-mentioned and other purpose, feature of the present invention will be from below with reference to accompanying drawing, to becoming to conspicuous in the description that most preferred embodiment of the present invention carried out.In the accompanying drawings:

Fig. 1 is one and has represented the skeleton view that wireless cassette recorder is housed according to most preferred embodiment of the present invention;

Fig. 2 is the skeleton view of sound-track engraving apparatus main part among Fig. 1, and it has represented that this recording cabin lid is opened the state the when deckle board that the storehouse covers is removed;

Fig. 3 is the cut-open view of sound-track engraving apparatus main part among Fig. 1;

Fig. 4 is a schematic diagram, and it has represented a driving mechanism that the tuning pointer of wireless cassette recorder is housed according to most preferred embodiment of the present invention.

Before describing the present invention, illustrate at first that in whole accompanying drawings, components identical is represented by identical reference number.

With reference to figure 1 and Fig. 2, the main body that wireless cassette recorder is housed is by reference number 1 expression.In main body 1, has cassette holder 2 and a circuit (as a radio receiver circuit) and a driving mechanism that is contained in the cassette recorder in interior storehouse that is used for placing magnetic tape cassette.Main body 1 also is equipped with many conversion and control knob 3 and a volume control knob 4 and channel selection knobs 5 that are used to select required channel that are used to control volume in order to the motion of conversion cassette recorder.Channel selection knob 5 is installed in rotation on the printed circuit board (PCB) 6, as shown in Figure 4 by an axle 7.In printed circuit board (PCB) 6, be mounted with radio reception circuit or similar circuit.Storehouse lid 8 pivotally is installed on the main body 1, and can be between its make-position (as shown in Figure 1) and its open site (as shown in Figure 2), to hide the cassette holder part 2 in the main body 1.On the storehouse lid 8 transparency window 9 is housed, sees through this window, can determine to be placed on other similar situation in tape surplus in the cassette holder part 2 or the tape.Deckle board 10 is installed in the surface of storehouse lid 8.

In Fig. 4, a dish drum 12 that is installed on the axle 13 that variable condenser 11 on the printed circuit board (PCB) 6 and is fixedly connected on variable condenser 11 is arranged.When rotating channel selection knob 5, variable condenser 11 will rotate by driving rope 15.Drive rope 15 and between dish drum 12 and belt wheel 14, do transmission.Belt wheel 14 is placed on the channel selection knob 5, and plays rotation with one.In Fig. 4, a volute spring 16 also is housed, its an end 16a is connected on the fixed part 17 on the storehouse lid 8, and other end 16b is connected an end of tuned rope 18.Guide pipe 19 as shown in Figure 2, covers the like that 8 edge parts form and is fixedly mounted on the storehouse lid 8 by several

retaining elements

20,21,22 or in the storehouse.Guide pipe 19 is made up of helical element, is directed on the dish drum 12 on the axle 13 that is fixedly connected on variable condenser 11 with the other end of tuned rope 18.Guide roller 23 is installed in rotation near the edge of storehouse lid 8, is used for guiding tuned rope 18.Tuning pointer 24 is connected with tuned rope 18 regularly, it be configured in the storehouse cover 8 lip-deep frequency dials 25 match with the indication receive frequency.Fig. 3 has represented some positions (all springs as previously mentioned 16, tuned rope 18, tuning pointer 24 and the like of installing of tuning indicating device.Magnetic tape cassette T has T ₁, T ₂Two parts.Magnetic head or similar elements are inserted into T ₁In.At T ₂In the part, have a pair of volume core, tape is wrapped on this volume core.T ₁And T ₂Two parts all have different separately thickness, and difference is bigger each other.The substrate 8a of storehouse lid 8 is made into the shape that the thickness with tape T adapts.Above-mentionedly be placed on the substrate 8a according to tuning indicating device described in the invention, the part shown in figure A, this part is utilized the level table difference of generation and is formed on substrate 8a.

Below, will do an explanation to the course of action of tuner with present institute description scheme.

When rotation placed channel selection knob 5 on the main body 1, belt wheel 14 just rotated thereupon, thereby by driving rope 15 rolling disc drums 12.When dish drum 12 rotates, make the electric capacity of variable condenser 11 change, thereby finish the selection of channel.At this simultaneously, make the rotation of tuned rope 18 by dish drum 12, the elastic force ground that overcomes spring 16 is wrapped on the dish drum 12, or discharges from coiling to rouse under spring 16 pullings.The above-mentioned motion of tuned rope 18 makes and to move with its fixedly connected tuning pointer 24 thereupon, thereby covers 8 lip-deep frequency dials and indicate receive frequency with being arranged in the storehouse.In addition, because tuned rope 18 is mobile under the guiding of guide pipe 19, so driving force can successfully pass on the tuning pointer 24 from tuned rope 18.Settling guide pipe 19 is to be connected near the lid rotating shaft of storehouse with the indicating section that the storehouse covers for the interior section with main body 1.

Here need to prove, in the above-described embodiment, though tuning indicating device (as spring 16, tuned rope 18, guide roller 23, tuning pointer 24 and similar elements) can be placed in the shoulder B place of the substrate 8a of storehouse lid 8 as shown in Figure 3, but also can do such modification, be about to similarly place of its C place, opposite that is placed in shoulder B or other.

Also be noted that in the above-described embodiment, though the pipe that is made of helical element is used as guide pipe 19, with guiding tuned rope 18.But the pipe of a different structure also can be used as guide pipe 19.

Though to the present invention by means of example, with reference to accompanying drawing, done sufficient description, it should be noted other various changes and revising here for these professional common technique personnel, be conspicuous.Therefore, unless these changes and modification depart from the scope of the present invention, otherwise should be considered to belong within the scope of the present invention.

Claims

1, tuner, it is used in one and is equipped with in the wireless cassette recorder, this cassette recorder has a Cang Gai (8) who pivotally is installed on its main body (1), this Cang Gai (8) is used for hiding the cassette holder part (2) that is installed in said main body (1), in the main body (1) of this cassette recorder, be placed with the driving mechanism of this sound-track engraving apparatus and the radio reception circuit of this sound-track engraving apparatus, it is characterized in that consisting of of said tuner:

A frequency channel-selection assembly, it is installed on the said main body (1), is used for selecting required channel;

An indicating device, it is placed on the said Cang Gai (8) movably, moves it by operating said frequency channel-selection assembly, thus the indication receive frequency; With

A gearing, it is used for the rotation of said frequency channel-selection assembly is delivered to said indicating equipment.

2, described according to claim 1, be used for a tuner that wireless sound-track engraving apparatus is housed, said frequency channel-selection assembly is a channel selection knob (5).

3, described according to claim 1, be used for a tuner that wireless cassette recorder is housed, said indicating device is tuning pointer (24)

4, according to described in the claim 1, the tuner of wireless cassette recorder is housed, this device is used to transmit the rotation of channel selector in wireless cassette recorder is housed, this device has a storehouse lid 8 that pivotally is installed on the sound-track engraving apparatus, be used for hiding and be positioned at this sound-track engraving apparatus main body 1 cassette holder part 2, a driving mechanism that is used for sound-track engraving apparatus and a circuit are arranged as radio receiver circuit is housed in main body 1, one is equipped with wireless sound-track engraving apparatus tuner, this device comprises, one is used to select needed channel, be contained in the channel selection knob 5 on the main body 1, one is contained in the tuning pointer that can move on the storehouse lid 8 and one and is used to indicate receive frequency can operate mobile channel selection knob 5, and some elements such as spring 16, tuned rope 18, guide pipe 19 and the like that is used for the rotation of channel selection knob is delivered to tuning pointer.