JPH10326481A - Cassette tape recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cassette tape recorder having such a structure that the impact from the outside due to drop, etc., does not transmitted directly to a mechanism or a printed circuit board. SOLUTION: An elastic material is combinedly formed into a rigid casing, and holding members such as elastic rib bosses 2c, flanges 2d, etc., are formed inside, and the elastic material is exposed also outside, thereby a main body of a cabinet 2 (2a, 2b) is formed. Then, a cassette cover 1 attaching an elastic member to it is combined with the main body cabinet 2, wherein a mechanism unit combining a mechanism 5 and the printed circuit board 6 is assembled and fixed to the elastic flanges 2d by screws 8. The space is provided for the mechanism unit in between the main body cabinet and the inside of cassette cover, and the unit is held by the elastic rib bosses 2c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of a portable cassette tape recorder.

[0002]

2. Description of the Related Art A conventional portable cassette tape recorder, specifically, a headphone stereo having a recording / reproducing function or a reproduction-only headphone is shown in FIGS.

A cassette lid 21 that is opened and closed when a cassette tape is inserted and removed is attached to a main body cabinet 22 so as to be openable and closable. The cassette lid 21 is formed with a transparent window 21a for checking whether or not the cassette tape 9 is attached. The main body cabinet 22 incorporates a mechanism 5 for running the cassette tape 9 and a printed wiring board 6 on which an electric circuit for recording / reproducing or reproducing is configured.

The slide knob 23 is slidably mounted on the main body cabinet 22. When the slide knob 23 is disengaged from the cassette lid 21 by operating the slide knob 23, the cassette lid 21 is opened.

In FIG. 5, a mechanism 5 attached to a main body cabinet 22 with attachment screws 24 has a motor 5c and a gear 5d for reducing the rotation of the motor 5c and changing the rotation direction. Tape 9
While transmitting the rotation of the motor 5c to the reel shaft that turns
A head block 5d holding a head 5e for picking up sound from the cassette tape 9 and rotating around a rotating shaft 5g;
A mechanical boss 5f for mounting the printed wiring board 6 is configured.

The printed wiring board 6 is fixed to the mechanical boss 5f of the mechanism 5 by screws with mounting screws 10. On the printed wiring board 6, an electric component 6b such as an IC or a resistor, and a tact switch 6a for operating the mechanism 5 are mounted. Tact switch 6a
Is a push button 25 attached to the main body cabinet 22.
Is operated by pressing with a finger.

[0007]

In such a mechanism holding structure, the mechanism 5 and the printed wiring board 6 cannot be protected from external impact.

That is, in order to minimize the size of the cassette tape recorder, the gap between the inside of the main body cabinet 22 and the printed wiring board 6 and the mechanism 5 is set to a minimum necessary. Since it is screwed directly, vibrations and shocks applied from the outside are directly transmitted to the mechanism, causing problems such as breakage, and the rigid body cabinet 22 is deformed and damaged. I have.

[0009]

According to the cassette tape recorder of the present invention, the main body cabinet is formed of a rigid portion and an elastic portion, and the elastic portion of the main body cabinet, a mechanism and an electric circuit related to the tape running of the cassette tape are constituted. And a unit component constituted by the wiring board thus formed is connected and supported, and a gap is formed between the inside of the main body cabinet and the unit component.

According to this structure, the mechanism and the wiring board can be protected from damage from externally applied vibration and shock.

[0011]

According to the first aspect of the present invention, there is provided a mechanism relating to a tape running of a mounted cassette tape and a wiring comprising an electric circuit for executing at least one of signal processing of reproduction and recording of the cassette tape. A cassette tape recorder having a unit component composed of a substrate and a built-in main body cabinet, wherein the main body cabinet is formed of a rigid portion and an elastic portion, and the elastic portion of the main body cabinet is connected to the unit component. In addition to the support, a gap is formed between the inside of the main body cabinet and the unit components.

According to a second aspect of the present invention, in the first aspect, a gap is formed between the inside bottom of the main body cabinet and the unit component, and a predetermined portion of the unit component is provided on the inside bottom of the main body cabinet. Characterized in that an elastic projection is formed which is in contact with the elastic projection.

According to a third aspect of the present invention, in the first or second aspect, an elastic flange is formed on the main body cabinet, and the flange and the unit parts are connected and supported.

According to a fourth aspect of the present invention, in the first to third aspects, the main body cabinet is formed by integrally molding an elastic portion made of an elastic material from outside the rigid portion.

According to a fifth aspect of the present invention, in any of the first to fourth aspects, a cushion made of an elastic material is provided outside a cassette lid which is openably and closably attached to the main body cabinet.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. (Embodiment) FIGS. 1 to 3 show (embodiment) of the present invention.

FIGS. 1 and 2 show the finished shape. The aluminum cassette lid 1 is pivotally supported on a main body cabinet 2 by a lid shaft 12 so as to be openable and closable. Reference numeral 3 denotes a lid lock attached to the main body cabinet 2 for keeping the cassette lid 1 closed, and reference numeral 4 denotes a lock piece attached to the cassette lid 1 and engaged with the lid lock 3.

Further, cushions 1a formed of a material having elasticity are attached to the cassette lid 1 near four corners around the cassette lid 1. In addition, 1b is a cassette lid window attached to the cassette lid 1, 2a is a protector portion formed of an elastic material constituting the main body cabinet 2 and exposed to the outside, and 2b is formed of a rigid material constituting the main body cabinet 2. Rigid part, 2c
Is a rib / boss formed on the protector portion 2a and formed inward of the main body cabinet 2, and 2d is a mechanism 5
Flange 11 made of an elastic material for attaching the main body cabinet 2 to the main body cabinet 2.
It is a plaque.

Reference numeral 2e denotes an operation button formed of a material having the same elasticity as that formed by composite molding on the main body cabinet 2, and for operating the tact switch 6a. More specifically, the main body cabinet 2 is formed by integrally forming an elastic portion composed of a rib / boss 2c made of an elastomer and a flange 2d outside a rigid portion 2b made of an ABS resin.

Reference numeral 6 denotes a printed wiring board on which electric components are mounted; 7, a chassis for forming a gap between the mechanism 5 and the inside of the main body cabinet 2; and a chassis for holding and fixing the mechanism 5 and the printed wiring board 6. Is a step screw for mounting.

Reference numeral 4a denotes a tape pressing spring attached to the lock piece 4 so as to elastically press the cassette tape 9, and 5a denotes a leaf spring attached to the mechanism 5.
The mechanism 5 is elastically pressed by contacting the cassette lid 1. 5b, 5e, 5f and 5g are the same as those in FIG. 5 showing a conventional example.

As shown in FIG. 3, the mechanism 5, the printed wiring board 6 and the chassis 7 are assembled in advance as one unit part 13, and the cassette lid 1 and the main body cabinet 2 are connected in one unit. 2, the unit component 13 was set inside the unit component 14 as shown in FIG. 2, the step screw 8 was attached, and the link 1c attached to the cassette cover 1 and the main body cabinet 2 were attached. The engagement of the shaft 2f completes the assembly of the cassette tape recorder that can open and close the cassette lid 1 with moderation.

The cassette tape recorder of the present invention thus configured has a mechanism 5, a printed wiring board 6,
A cassette tape 9 is attached to an elastic flange 2d with a step screw 8, is held with a gap between the main body cabinet 2 and the inner surface of the cassette lid 1, and has an elastic rib / boss 2c and a tape pressing spring 4a. , Leaf spring 5
Since the mechanism 5 and the like are received at a, the impact on the unit component 13 due to a drop or the like can be reduced by the action of the elastic portion of the main body cabinet 2.

Further, by forming the protector portion 2a also on the outside, a structure is provided in which external shock to the cassette tape recorder can be further reduced. In the above-described embodiment, the portion of the flange 2d of the main body cabinet 2 to which the unit component 13 is connected via the step screw 8 is formed of an elastic material, and the rib / boss 2c of the main body cabinet 2 is connected to the unit component 13. Although it is configured to be in contact with the side, simply forming the flange 2d of the main body cabinet 2 with an elastic material can be expected to reduce the external impact as compared with the related art.

[0025]

According to the first aspect of the present invention, a mechanism relating to the tape running of the mounted cassette tape and an electric circuit configured to execute at least one signal processing of reproduction and recording of the cassette tape. A cassette tape recorder in which a unit component constituted by a substrate and a main body cabinet are built in, wherein the main body cabinet is formed of a rigid portion and an elastic portion, and the elastic portion of the main body cabinet and the unit component are connected to each other. In addition to the support, a gap is formed between the inside of the main body cabinet and the unit components, so that the unit can be protected from external impact by utilizing the elasticity of the elastic portion of the main body cabinet.

According to the second aspect of the present invention, in the first aspect, a gap is formed between the inside bottom of the main body cabinet and the unit component, and the inside bottom of the main body cabinet is provided with the unit component. Since the elastic projection is formed so as to be in contact with the predetermined part, the unit connected to the elastic part of the main body cabinet and elastically deformed and moved by receiving an external impact is moved by the elastic projection formed on the bottom inside the main body cabinet. The function of the buffer effect can be improved by elastic support.

According to the invention described in claim 3, according to claim 1
According to the second aspect of the present invention, since a flange having elasticity is formed in the main body cabinet and the flange and the unit parts are connected and supported, the thin-walled flange is appropriately elastically deformed by an external impact, and is elastically supported to provide a cushioning effect. Function can be improved.

According to the invention described in claim 4, claims 1 to
In claim 3, the main body cabinet is formed by integrally molding an elastic portion made of an elastic material from the outside of the rigid portion. Therefore, by performing composite molding, it is possible to improve the function of the buffer effect and to reduce the number of parts. .

According to the invention of claim 5, claims 1 to 1 are provided.
According to the fourth aspect, since a cushion made of an elastic material is provided outside the cassette lid attached to the main body cabinet so as to be openable and closable, the function of the buffer effect can be further improved.

[Brief description of the drawings]

FIG. 1 is a sectional view of a cassette tape recorder according to an embodiment of the present invention.

FIG. 2 is an external perspective view of the embodiment.

FIG. 3 is an exemplary perspective view showing an assembling procedure according to the embodiment;

FIG. 4 is an external view of a conventional cassette tape recorder.

FIG. 5 is a cross-sectional view of the conventional cassette tape recorder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cassette lid 1a Cushion 1b Cassette lid window 1c Link 2 Main body cabinet 2a Protector part 2b Rigid part 2c Rib / boss 2d Flange 2e Operation button 2f Shaft 3 Lid lock 4 Lock piece 4a Tape holding spring 5 Mechanism 5a Leaf spring 5b Head block 5c Motor 5d Gear 5e Head 5f Mechanical Boss 5g Rotating Shaft 6 Printed Wiring Board 6a Tact Switch 6b Electrical Parts 7 Chassis 8 Step Screw 9 Cassette Tape 10 Mounting Screw 11 Decor Plate 12 Lid Shaft 13, 14 Unit Parts

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshiaki Miyazaki 1006 Oaza Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (5)

[Claims] 1. A unit component comprising a mechanism relating to tape running of a mounted cassette tape and a wiring board on which an electric circuit for performing at least one of signal processing of reproduction and recording of the cassette tape is formed. A cassette tape recorder incorporated in a main body cabinet, wherein the main body cabinet is formed of a rigid portion and an elastic portion, the elastic portion of the main body cabinet and the unit components are connected and supported, and the inside of the main body cabinet and the unit are connected. Cassette tape recorder with a gap between parts. 2. A space is formed between a bottom part inside the main body cabinet and the unit parts, and an elastic projection is formed on the bottom part inside the main body cabinet so as to contact a predetermined part of the unit parts. The described cassette tape recorder. 3. The cassette tape recorder according to claim 1, wherein an elastic flange is formed in the main body cabinet, and the flange and the unit component are connected and supported. 4. The cassette tape recorder according to claim 1, wherein the main body cabinet is formed by integrally molding an elastic portion made of an elastic material from outside the rigid portion. 5. The cassette tape recorder according to claim 1, wherein a cushion made of an elastic material is provided outside a cassette lid attached to the main body cabinet so as to be openable and closable.