JPH07141850A - Electronic equipment - Google Patents

Abstract

PURPOSE:To prevent the occurrence of a gap between a main body case part and a lid by covering an ornamental frame between the main body case part and the lid with a flexible elastic material. CONSTITUTION:A core material part 14a of a sheet metal material between the main body case part 12 of a tape cassette and its lid body 13 is outserted by an ornamental part 14a2 of flexible elasticity such as rubber, etc. The occurrence of a gap between the case part 12 and the lid 13 can be prevented by this ornamental part 14a2, and moreover, an overstroke is absorbed by the nornamental part 14a2, so that an external appearance is decent-looking presentable, and also its dust proofness is enhanced. Then, the impact resistance is also enhanced, and hence an effect of an impact upon the inside mechanical parts can be alleviated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device such as a portable tape cassette player.

[0002]

2. Description of the Related Art Conventionally, a portable tape cassette player as an electronic device of this type has a decorative frame interposed between a casing and a cassette lid to improve appearance and low drop strength. For this reason, the decorative frame is formed by plating the decorative frame body formed of a synthetic resin material.

[0003]

As described above, when the decorative frame formed of the synthetic resin material is used, a gap is formed between the decorative frame and the body case to which the decorative frame is attached due to deformation of the decorative frame itself and an error during assembly. Is likely to occur, and in particular there is a problem in matching on a curved line, and a gap is generated because the fitting portion dimension is designed to widen due to tolerance.

Further, even after the completion of the product, when considering the locking of the cassette lid, it is necessary to take an overstroke during locking with the decorative frame serving as the receiving surface, which also causes a gap. It was

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electronic device in which no space is formed between the decorative frame, the body casing and the cassette lid.

[0006]

In order to achieve the above object, an electronic device according to the present invention has a core member formed of sheet metal between a main body casing and a lid by a flexible elastic material over a predetermined range. It has a decorative frame that covers it.

[0007]

As described above, according to the present invention, since the decorative frame coated with the flexible elastic material is interposed between the body casing and the lid, the flexible elastic material comes into contact with the body casing and the lid. Therefore, generation of a gap between the two is prevented.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described with reference to the drawings. This embodiment is an example in which the present invention is applied to a portable tape cassette player.

In the figure, the entire tape cassette player is shown, and the outer casing 1 is composed of a main casing 12 and a cassette lid 13 and a decorative frame portion 14 interposed between these portions 12 and 13.
1a is configured, the body casing 12 and the decorative frame 14 are fixed to a mechanical chassis 15, and the cassette lid 13 is attached to the mechanical chassis 15 so as to be capable of undulating.

The decorative frame portion 14 is fixed to the mechanical chassis 15 so as to project from the peripheral surface of the mechanical chassis 15 to the upper surface side so as to surround the mechanical chassis 15. The decorative frame portion 14 forms the upper surface side of the mechanical chassis 15 into a cassette housing portion 15a. A hub drive shaft, a capstan, a cassette positioning pin, and the like as a tape drive traveling drive mechanism are arranged in the same manner as a known tape cassette player, and the main body casing 12 is a mechanical chassis 1.
5 is fixed to the mechanical chassis 15 so as to cover the drive member, the electric circuit board, and the like on the lower surface side of the frame 5 by attaching it to the attachment portion of the decorative frame portion 14 by means of screwing or the like, and the peripheral portion thereof is the appearance portion. It is in contact with the lower edge side.

On the other hand, the cassette lid 13 is the mechanical chassis 1.
5, bearing blocks 16a arranged on both sides of the box on the upper surface of
It is attached by means such as screwing of a substantially U-shaped mounting frame 17 pivotally supported on 16b, and is raised and lowered with respect to the upper surface side of the mechanical chassis 15 to open and close the cassette housing portion 15a. Lie down state, that is, cassette storage unit 15
With a closed, the peripheral edge portion is brought into contact with the upper edge side of the decorative portion of the decorative frame portion 14. The cassette lid portion 13 is locked in a closed state by a locking mechanism provided at the front edge of the mechanical chassis 15, and an operating lever 18 for releasing the locking mechanism is provided with a decorative frame. It is attached to the front side of the portion 14.

In this example, the decorative frame portion 14 is composed of a main frame portion 14a corresponding to the front surface portion and both side surfaces of the mechanical chassis 15 and a sub frame portion 14b corresponding to the rear surface portion. Both of 14a and the sub-frame portion 14b are formed into a core material portion 14a ₁ and 14b ₁ formed of sheet metal by outsert molding with a soft elastic material such as rubber and the like.
₂ and 14b ₂ are formed. Core parts 14a ₁ and 1
Reference numeral 4b ₁ has an exposed surface that protrudes from the molding portion of the appearance portions 14a ₂ and 14b _{2 at} a required portion, and the screw holes 19a ₁ and 19b ₁ for the mechanical chassis 15 and the screws of the body casing 12 are provided on this surface. Stop holes 19a ₂ and 19b ₂ are formed, and the core material portion 1 is provided at the substantially central portion of the front surface portion of the main frame portion 14a.
A guide elongated hole 20a of the operating lever 18 and an escape hole 20b of the locking mechanism member are formed through 4a ₁ .

Further, the upper and lower edges of the format portions 14a ₂ and 14b ₂ are formed as a receiving surface, the receiving surface of the lower edge corresponds to the peripheral portion of the main body Napishtim- portion 12, the receiving surface of the upper edge the cassette lid It is formed so as to correspond to the peripheral portion of the portion 13.

[0014] Thus the main frame portion 14a of the decorative frame portion 14 which is formed by press molding the core portion 14a ₁ in the deployed flat in a predetermined shape by sheet metal, rubber or the like to the core portion 14a ₁ of the flat Form part 1 by outsert molding of flexible elastic material
After forming the 4a _2, both sides with substantially be bent at right angles to face, the mechanical chassis 15 the ends of the both side surfaces corresponding to both side edges with respect to the front surface portion corresponding to the front edge of the mechanical chassis 15 It can be formed by bending along both corners of the rear edge portion, that is, along both corners of the rear surface of the body casing 12.

Further, since the sub-frame portion 14b of the decorative frame portion 14 is shaped only along the rear edge portion of the mechanical chassis 15, the core material portion 14b ₁ is press-molded with a metal plate into a flat predetermined shape to form the main frame portion 14a. It can be formed only by forming the appearance portion 14b ₂ by outsert molding of a flexible elastic material such as rubber as in the case.

The appearance portions 14a ₂ and 1 of the decorative frame portion 14
The soft elastic material forming the 4b _2, those were mixed polyvinyl chloride natural rubber, also Erasutoya or synthetic rubber, for example butadiene rubber, styrene - in which butadiene rubber, isoprene rubber, silicone rubber or the like can be used.

As described above, the outer casing 11a of the tape cassette player 11 of the present embodiment has the core member 1 formed by sheet metal.
Main frame part 14 in which appearance parts 14a ₂ and 14b ₂ of flexible elastic material are formed on 4a ₁ and 14b ₁ by outsert molding
The decorative frame portion 14 composed of a and the sub-frame portion 14b is attached to the peripheral edge portion of the mechanical chassis 15 and is interposed between the main body casing 12 and the cassette lid portion 13, and the main body casing portion 12 and the cassette lid portion 1 are provided.
The peripheral edge portion of 3 is formed of soft elastic material 14a ₂ and 14b ₂
Since it is configured to contact the receiving surface of the upper and lower edges of
There is almost no gap between the decorative frame portion 14 and the body casing 12 and the cassette lid portion 13. Especially, when the cassette lid portion 13 is locked by the locking mechanism during the closing operation, the overstroke is caused by the appearance portion 14a _2. Since the elastic flexures of 14 and 14b ₂ can be utilized to absorb the gap, the appearance can be improved and dust and the like can be prevented from entering the inside.

Also, in the case of a drop, the elasticity of the appearance portions 14a ₂ and 14b ₂ of the decorative frame portion 14 absorbs the impact, so that the influence on the internal mechanical parts can be alleviated.

In the present embodiment, the main frame portion 14a and the sub-frame portion 14b of the decorative frame portion 14 are formed by outsert-molding the flexible elastic material on the flat plate metal, so that so-called multi-cavity production is possible. becomes, i.e., out the appearance portion 14a ₂ by both side surfaces are substantially perpendicular to the bent has been the main frame portion 14a of the core material portion 14a ₁ flexible resilient material formed into a flat shape by sheet metal shape to the front portion After the salt molding, the both side surfaces are finally bent to form the final shape, so that the molding die can be simplified in the production and a large number of pieces can be taken, and the productivity is improved.

Further, the tape cassette player 11 of this example
In the above, the cassette holder 21 is disposed in the cassette housing portion 15a on the upper surface side of the mechanical chassis 15.

The cassette holder 21 has holding portions 21a and 21b, on both sides of which the front and both sides of the front portion of the tape cassette C are vertically inserted with play, and connecting portions 21 having a substantially L-shaped cross section.
The recording and / or reproducing head and the pinch roller are connected to the recording / reproducing head and the pinch roller at the connecting portion 21c. Etc. are installed.

The cassette holder 21 is provided on both sides of the connecting portion 21c with the shaft supporting leg pieces 21 also serving as cassette positioning.
The mechanical chassis 1 described above is formed by projecting d and 21e.
The bearing blocks 16a, 16b on the upper part of the bearing 5 are positioned above the pivot point of the mounting frame 17 and are pivotally supported.

[0023] That is, the bearing block 16a which is disposed fixed to the rear sides of the upper surface of the mechanical chassis 15, 16b has a first shaft support 16a _1, 16b ₁ on the lower side of the outer surface, and the second on the inside of the top surface Shaft support portions 16a ₂ and 16b ₂ are provided so as to face each other at a required interval in a substantially vertical direction. The first shaft support 16a _1, the 16b ₁ mounting frame 1
7 is rotatably supported by shaft supporting leg pieces 17c and 17d projectingly formed on the base end portions of both side piece portions 17a and 17b.
The cassette holder 21 is attached to the shaft supporting portions 16a ₂ and 16b ₂ of
The shaft supporting legs 21d and 21e are pivotally supported.

In this mounting frame 17, in the mounting frame 17, the shaft hole 17c ₁ formed in one shaft supporting leg 17c is fitted into the shaft pin as the first _one shaft supporting portion 16a ₁ and the other shaft is supported. It is made by inserting a screw shaft as the first other shaft supporting portion 16a ₂ into the shaft hole 17d ₁ formed in the supporting leg piece 17d, and in the cassette holder 21, both shaft supporting leg pieces 21d, 21e are formed. Shaft holes 21d ₁ and 21e ₁
Are fitted into the shaft pins as the _second shaft supporting portions 16a ₂ and 16b ₂ , respectively.

In this way, the mounting frame 17 of the cassette lid 13 is
And the cassette holder 21 are axially supported in a vertical relationship with respect to the bearing blocks 16a and 16b arranged in the mechanical chassis 15, that is, the mounting frame 17 is axially supported on the lower side and the cassette holder 21 is axially supported on the upper side. The mechanical chassis 15 so that the mounting frame 17 surrounds the outside of the cassette holder 21.
It is rotated up and down with respect to.

The mounting frame 17 is connected to the mechanical chassis 15 by a click arm 22 which is bent and rotated, and is held upright at a predetermined angle, for example, an angle of about 65 °.

The bearing blocks 16a and 16b are covered with a cover.
The set holder 21 falls over on the upper surface of the mechanical chassis 15.
In the rolled state, the outer surface sides of the shaft support leg pieces 21d and 21e are slidably brought into contact with each other.
Restricts movement of the set holder 21 in the axial direction (lateral direction)
Regulation projection 16a₃, 16b ₃Is projected.

In the present embodiment, a notch-shaped engaging recess 23 having an engaging groove 23a in the front direction is formed in the central portion of one side piece 17a of the mounting frame 17 so as to open to the upper edge side. Corresponding to the engaging recess 23, an engaging projection 24 is laterally projected and formed on the outer surface of the front end of the one holding portion 21a of the cassette holder 21 so as to be engaged with and disengaged from the engaging recess 23. It is done like this. That is, when the mounting frame 17 and the cassette holder 21 are in the fallen and rotated state, the engaging projection 24
Is located above the opening of the engaging recess 23, and the mounting frame 1
The engagement concave portion 23 engages with the engagement projection piece 24 by the upward rotation of 7, whereby the cassette holder 21 is rotated upward together with the mounting frame 17.

When the mounting frame 17 and the cassette holder 21 are rotated upwardly, the mounting frame 17 and the cassette holder 21 are mounted so that the pivot points of the mounting frame 17 and the cassette holder 21 are positioned to face downward and upward in the substantially vertical direction. The frame 17 and the cassette holder 21 are opposite to each other, and the mounting frame 17 is rearward,
Moves to the front, the engaging projection 24 is inserted and engaged with the engaging groove 23a of the engaging recess 23, and the mounting frame 17 is locked by the click arm 22 at the predetermined raising rotation position. The holder 21 is also locked.

The holding portion 21 of the cassette holder 21
A leaf spring-shaped cassette guide 25a, 25b bent outward (upward) is attached to the tip of the upper surface of each of a and 21b, and cassette pressing springs 26a, 2 are provided at the center of the upper surface.
6b is attached. This cassette guide 25a, 25
b has its tip elastically abutted on the inner surface side of the cassette lid portion 13 mounted on the mounting plate 17, and is positioned in an inclined shape between this inner surface side and the upper surface portions of the holding portions 21a and 21b.
As a result, there is no step between the inner surface of the cassette lid 13 and the cassette holder 21, and the tape cassette C can be easily attached to the holding portions 21a and 21b of the cassette holder 21 by moving the tape cassette C from the front of the cassette lid 13 to the inner surface. Can be inserted.

Further, the cassette pressing springs 26a and 26b are pressed by the inner surface side of the cassette lid portion 13 when the cassette lid portion 13 is closed and the cassette holder 21 is tilted and rotated, and is inserted into the cassette holder 21 by its repulsive force. The tape cassette C thus formed is pressed and fixed to the upper surface side of the mechanical chassis 15, that is, the cassette storage portion 15a.

As described above, when the cassette lid 13 is opened at a predetermined angle, it is locked and held by the click arm 22 through the mounting frame 17, and in this state, the cassette holder 21 also engages with the mounting frame 17. The piece 24 is inserted into and engaged with the engagement groove portion 23 a of the engagement concave portion 23, whereby the piece 24 is held at the rising rotation position.

In this state, the tape cassette C is inserted from the front side of the cassette lid portion 13 along the inner surface side thereof into the both side holding portions 21a and 21b of the cassette holder 21 via the cassette guides 25a and 25b as described above. The tape cassette C is inserted very smoothly because the step between the inner surface of the cassette lid 13 and the holding portions 21a and 21b of the cassette holder 21 is eliminated by the presence of the cassette guides 25a and 25b. There is no risk of damage.

When the tape cassette C is inserted and held in the cassette holder 21 in this manner and is rotated in the direction in which the cassette lid 13 is closed, the cassette holder 21 is also attached to the mounting frame 1.
In the state of being engaged with 7 as described above, it is tilted and rotated. With this rotation, the cassette holder 21 is moved rearward with respect to the cassette lid portion 13, that is, the mounting frame 17, as described above, so that the engaging projection 24 is engaged with the engaging recess 2 of the mounting frame 17.
The cassette holder 21 is retracted from the engaging groove 23a of No. 3 and is moved to the opening side, the engagement is released, the cassette lid 13 is completely closed, and the cassette holder 21 is locked by the locking mechanism. , 25b are pressed by the inner surface of the cassette lid 13 and fall down parallel to the upper surface of the mechanical chassis 15.

By this fall-down operation, the engaging protrusion 24 of the cassette holder 21 is disengaged from the engaging recess 23 of the mounting frame 17 and is positioned above the opening, so that the engagement with the mounting frame 17 is completely released.

In this state, the tape cassette C held by the cassette holder 21 has the cassette pressing springs 26a, 26b attached to the holding portions 21a, 21b.
It is pressed by the repulsive force generated by being pressed by 3, and is stored and held in the fixed state in the upper surface side of the mechanical chassis 15, that is, the cassette storage portion 15a. In this way, recording or reproduction is performed with the tape cassette C stored and held in the cassette storage portion 15a.

Next, as described above, the cassette storage portion 15a
To take out the tape cassette C stored and held in
When the locking of the cassette lid portion 13 is released by operating the operation lever 18, the cassette lid portion 13 is flipped up by the repulsive force of the cassette guides 25a and 25b attached to the cassette holder 21, and this attachment movement causes the attachment frame to move. 17
The engaging concave portion 23 corresponds to the engaging protrusion 24 of the cassette holder 21.

When the cassette lid 13 is pushed up and rotated in this state, the engaging recess 23 of the mounting frame 17 engages with the engaging projection 24 of the cassette holder 21 from below, whereby the cassette holder 21, the cassette holder 21 is moved forward with respect to the mounting frame 17 as described above, and the engaging projection 24 is engaged with the engaging recess 2
3 is inserted into the engaging groove portion 23a, and the cassette lid portion 13 is opened at a predetermined angle so that the cassette lid portion 13 is completely inserted and engaged and locked to the mounting frame 17.

The cassette lid 13 thus opened at a predetermined angle is locked and held by the click arm 22, and the cassette holder 21 is also locked and held at the same time.

In this state, the tape cassette C is taken out from the cassette holder 21, but in this case, the cassette holder 21 does not move to the cassette lid 13 side, and moves forward with respect to the cassette lid 13. That is, since the tape cassette C is in the protruding state, the tape cassette C is
Can be taken out without hitting the front surface portion 13a of the cassette lid portion, and even when the cassette lid portion 13 is taken out downward, the front surface portion 13a of the cassette lid portion 13 can be taken out very easily without any hindrance.

Further, the tape cassette player 11 of this example
The outer casing 11a of the main body casing 12 has a plurality of operation switch buttons 31 (31a, 31b, 31c,
31d, 31e) are provided. This operation switch button 31a~31e the body Napishtim 12 oblong concave portions 12a ₁ formed in the surface portion 12a of a push button type arranged in a horizontal row along the long side portion of the one, 31a Is a radio band switch button, 31b is a rewind switch button,
31c is a fast-forward switch button, 31d is a stop (stop)
A switch button 31e is a play switch button.

Each of these operation switch buttons 31a to 31e
Is a button support arm member 3 attached to the inner surface side of the body casing 12
2, the button support arm member 32 is made of a flexible material such as synthetic resin.
1a to 31e are integrally connected to each other, and each operation switch button 31a to 31e is supported so as to be exposed on substantially the same plane as the above-mentioned concave surface portion 12a ₁ . When these operation switch buttons 31a to 31e are pressed, the body housing 12
It is configured so as to be electrically connected to each electric contact on an electric circuit board (not shown) disposed inside the mechanical chassis 15 as described above.

[0043] Then, in use in the concave portion 12a ₁ of the surface portion 12a of the body Napishtim- portion 12, a shutter 33 which covers the operation switch button 31a~31e to during mobile not pressed accidentally operated switch button is slid Installed as possible. That is, this shutter 33 is operated by each operation switch button 31.
a-31e 1st position which covers, and each operation switch button 31a
Over a second position exposing the ～31E, it has been made slidable, the sliding direction of the shutter 33 is the operation in the concave portion 12a in the _first switch 31a~31e
The direction is orthogonal to the array direction.

In this way, the shutter 33 is attached to the body case 1
In order to slidably attach to 2, in this example,
A movable support member 34 is interposed between the concave surface portion 12a ₁ of the body casing 12 and the shutter 33.

The movable support member 34 is composed of a pair of support levers 35 and 36. Both support levers 3
Numerals 5 and 36 are axial pins 37a and 3 at the lateral ends on the inner surface side of the shutter 33 at the one ends 35a and 36a, respectively.
The other end (free end) 35 is axially mounted relative to each other by 7b.
b and 36b are formed so as to overlap each other in the central portion on the inner surface side of the shutter 33, and both of the support levers 35 and 36 are slidably in contact with the inner surface side of the shutter 33 on the same surface. The free ends 35b of the support levers 36 and 36 are formed stepwise inward at a height corresponding to the thickness of the free end 36b of the other supporting lever 36, that is, on the side opposite to the shutter 33, and the free ends of both support levers 35 and 36 are formed. The portions 35b and 36b overlap each other.

An engaging long groove 38 is formed in the stepwise free end portion 35b of one of the supporting levers 35 in the longitudinal direction thereof, and an engaging shaft is formed at the free end portion 36b of the other supporting lever 36. A pin 39 is provided so as to project. By engaging the engagement long groove 38 with the engagement shaft pin 39, both support levers 3
5 and 36 are shaft pins 37a and 37 with respect to the shutter 33.
It is adapted to rotate in conjunction with b as a fulcrum.

Further, the mounting shaft pins 40a and 40b are provided so as to project from the inner surfaces of the both support levers 35 and 36, that is, the surfaces on the side opposite to the shutter 33, at a position spaced apart from the above-described engaging portion. Spring-hanging shaft pins 41a and 41b are provided at positions between the shaft pins 40a and 40b and the engaging portions.

On the other hand, the substantially central portion of the concave surface portion 12a ₁ of the body casing 12 to which the shutter 33 is attached, that is, the portion surface corresponding to the inner side of the arrangement portion of the operation switch buttons 31, has the one support lever 35 described above. A stepped free end portion 35b and an escape window hole 42 for the engagement shaft pin 39 are formed, and the spring engagement shaft pins 41a, 41 are laterally arranged around the escape window hole 42.
through holes 43a, 43b into which b is loosely inserted and the mounting shaft pin 4
Guide holes 44a and 44b for restricting rotation of the attachment / support lever are formed so that 0a and 40b are movably inserted and engaged within a predetermined range.

In this way, the holes 42, 43a, 43b,
Concave surface portion 12a of the body casing 12 in which 44a and 44b are formed
_The shutter 33 is brought into contact with ₁ and the stepped free end portion 35b of the support lever 35 and the engaging pin 39 are made to correspond to the escape window hole 42, and the spring hooking shaft pins 41a and 41b are inserted into the through holes 43a and 43b. The mounting shaft pins 40a and 40b are inserted into the guide holes 44a and 44b, respectively.
A washer 45a, 45b is fitted on the projecting end of the a, 40b at the inner surface side of the body casing 12 to prevent the spring from slipping off, and the toggle spring 4 is attached to the spring hooking shaft pins 41a, 41b.
The shutter 33 is attached to the concave surface portion 12a ₁ of the body casing 12 by fitting both end portions 46a and 46b of 6 together.

In this way, the concave surface portion 12a ₁ of the body casing 12 is
By pressing the shutter 33 attached to the switch 33, the shutter 33 can be switched between the first position that covers the operation switch button 31 and the second position that exposes the operation switch button 31.

That is, when the shutter 33 is in the middle of the first and second positions, the shaft pins 39, 40a, 40b, 41a, 41b of the support levers 35, 36 are also aligned on the horizontal center line. At the center, both support levers 35 and 36 are in a state of abutting in the linear direction at the engaging portion and are located on the dead center.

Then, when the shutter 33 is pressed toward the first position, both support levers 35 and 36 are rotated, and this rotation is instantaneously performed by the toggle effect of the toggle spring 46, and the shutter 33 is moved to the first position. It is slid and held.

When the shutter 33 is pressed from the first position toward the second position, both support levers 35 and 36 are rotated, and when the dead point is exceeded, the toggle effect of the toggle spring 46 causes a momentary effect. The shutter 33 is rotated and slid and held at the second position.

In this way, the shutter 33 is slid to the first position, whereby the operation switch buttons 31a ...
31e is obscured to prevent the operation, and the operation mode cannot be switched or stopped by the operation switch buttons 31a to 31e, which can prevent malfunction and clearly display that the mechanism is in the hold state. It will be.

By sliding the shutter 33 to the second position, the operation switch buttons 31a to 31e are exposed and can be operated, and it is clearly displayed that the mechanism is not held. become.

As described above, in the present embodiment, the shutter 33 that is slid is operated by the pair of support levers 35 and 36 as the movable support member 34 interposed between the shutter 33 and the body casing 12.
Is slid by the rotation of.

As described above, the sliding of the shutter 33 for opening and closing the operation portion provided with the operation switch button 31 is a pair of support levers 35 as a movable support member 34 interposed between the shutter and the body casing. , 36 are rotated by the inner surface of the shutter 33, the sliding amount can be increased even if the movable range of the sliding support mechanism is small. Therefore, the shutter 33 can be formed in a narrow shape. .

Further, since the shutter 33 is slid by the symmetrical interlocked rotation of the pair of support levers 35 and 36, the shutter 33 can be stably and smoothly operated without swinging, and the operability is improved.

In the above structure, a slippery film 47 such as a polyester film is attached to the inner surface of the shutter 33 so that the support levers 35 and 36 can be smoothly rotated with respect to the shutter 33. Ribs 12a ₂ and 12a ₃ are formed on the concave portion 12a ₁ of the portion 12 so as not to be damaged by the rotation of the support levers 35 and 36,
A film 48a for preventing scratches is provided on the support levers 35, 36 side.
48b is attached.

In this example, the support levers 35, 3
6 is attached to the body casing 12 by attaching the shaft pin 40
Although the so-called washer stopper is used to fit the washers 45a and 45b to the a and 40b, the washer stopper can be used instead of the washer stopper.

Further, the tape cassette player 11 of this example
In FIG. 7, a part of the peripheral surface of the volume knob 51 as a rotary operation body is exposed from the opening 12b formed on the side surface of the body casing 12 of the outer casing 11a.

The volume knob 51 is attached to an electric circuit board (not shown) arranged inside the mechanical chassis 15. On both side surfaces of the volume knob 51, circular protrusions having a small diameter and being concentric with the knob peripheral surface portion 51a are provided. Part 51
b, 51c are formed. In the volume knob 51, only a part of the knob peripheral surface portion 51a is exposed from the opening 12b of the body casing 12 and the protruding portions 51b, 51c.
Is located inside the body casing 12.

Therefore, in this example, the protruding portion 51b of the volume knob 51 and the opening 12b of the body casing 12 are formed.
By interposing a hidden plate 52 between and, the gap between the volume knob 51 and the opening 12b is made extremely small. That is, the hidden plate 52 is formed in a plate shape whose outer shape is larger than the opening 12b of the body casing 12, and is slightly wider than the width dimension of the knob peripheral surface portion 51a of the volume knob 51 in the central portion (for example, peripheral surface width dimension W + 0. (0.05 to 0.1 mm)
Then, a rectangular opening 53 into which a part of the peripheral surface portion 51a is inserted is formed, and circular protrusions on both side surfaces of the volume knob 51 are formed at central portions on the inner surface side of both side edges of the opening portion 53 in the width direction. Sliding contact portion 54 slidably contacting the peripheral surfaces of 51b and 51c
a and 54b are formed as arcuate concave curved surfaces concentric with the circular protrusions 51b and 51c.

Further, inclined surfaces 55a and 55b along the peripheral surface portion 51a of the volume knob 51 are formed on both inner surfaces of the hidden plate 52 opposed to each other in the longitudinal direction, and the outer surface side of the hidden plate 52 is flat. It is formed into a shape.

The hidden plate 52 is preferably made of a slippery material. In the assembly of the tape cassette player 11, the hidden plate 52 formed as described above is fitted into the peripheral surface portion 51a of the volume knob 51 so that the sliding contact portions 54a and 54b are slidably contacted with the peripheral surfaces of the circular protrusions 51b and 51c. The outer surface side is the opening 1 of the body casing 12 in the state
2b and a portion of the peripheral surface portion 51a of the volume knob 51 protruding from the opening 53 so as to contact the inner surface side of the main body casing portion 12
Facing the opening 12b.

By interposing the concealing plate 52 between the peripheral surface portion 51a of the volume knob 51 and the opening portion 12b of the body casing portion 12, the volume knob 51 and the opening portion 12b of the body casing portion 12 are connected to each other. Will be closed, and even if there is a gap between the volume knob 51 and the opening 12b of the body casing 12, the concealing plate 52
Will close the gap corresponding to the opening 12b while being integrated with the volume knob 51.

When operating the volume knob 51, the volume knob 51 has circular protrusions 51b, 5b.
1c is a sliding contact portion 54a, 54 of an arcuate concave curved surface of the hidden plate 52
Since it is slidably brought into contact with b and is rotated, the hidden plate 52 does not oscillate inadvertently and does not hinder the operation.

With the above structure, the volume knob 51 is operated and the tape cassette player 1 is operated.
It is possible to prevent dust and the like from entering the outer casing 11a when the portable device 1 is carried, and prevent malfunctions.

The configuration of this example has a volume knob 51.
The invention is not limited to the above, but can be applied to other rotating bodies.
Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and various modifications can be made without departing from the spirit of the present invention. Further, the electronic device according to the present invention is not limited to the tape cassette player as in the above-described embodiment, but is configured as various electronic devices such as an audio recording and reproducing device, a disc player, a video tape recorder device, a video cassette device and the like. can do.

[0070]

As described above, according to the present invention, since the decorative frame interposed between the main body casing and the lid is covered with the flexible elastic material, a gap is generated with respect to the main body casing. It is possible to attach it, and it can be finished beautifully in appearance, and because of the flexibility of this receiving surface in the gap between the lid and the receiving surface of the decorative frame on the product, the overstroke can use the bending amount. Can absorb the gap.

As described above, since there is no gap between the decorative frame and the casing and lid of the main body, invasion of dust into the interior is prevented, and the decorative frame absorbs impact even when the drop is low. Internal mechanical parts are protected.

[Brief description of drawings]

FIG. 1 is a perspective view of an example of a portable tape cassette player to which the present invention is applied.

FIG. 2 is a side view showing a part of the same.

FIG. 3 is a partially cutaway side view of the cassette lid part in the middle of opening.

FIG. 4 is a partially omitted and cutaway side view of the cassette lid in a state where the cassette lid is opened at a predetermined position.

5 is an enlarged cross-sectional view taken along the line AA in FIG.

FIG. 6 is a perspective view of a main frame portion of a decorative frame used in the tape cassette player.

FIG. 7 is a perspective view of the sub-frame portion.

FIG. 8 is an exploded perspective view showing a relation between a mounting frame of a cassette lid portion and a cassette holder used in the tape cassette player.

FIG. 9 is an exploded perspective view showing the configuration of the body casing of the tape cassette.

FIG. 10 is an enlarged cross-sectional view of a main part of the body casing.

FIG. 11 is an enlarged front view of the main part of the main body case part.

FIG. 12 is an enlarged front view of an operating state of a main part of the body casing.

FIG. 13 is an enlarged cross-sectional view of a mounting portion of a volume knob in the tape cassette player.

FIG. 14 is a front view of the mounting portion.

FIG. 15 is an exploded perspective view of the mounting portion.

[Explanation of symbols]

 11 Tape Cassette Player 12 Main Body Box 12b Opening 13 Cassette Lid 14 Decorative Frame 15 Mechanical Chassis 16a, 16b Bearing Block 17 Cassette Lid Mounting Frame 21 Cassette Holder 21a, 21b Holding 22 Click Arm 31 Operation Switch Button 33 Shutters 35, 36 Support levers 46 Toggle springs 51 Volume knobs 52 Concealed plates 54a, 54b Sliding contact parts

Claims (4)

[Claims] 1. An electronic device comprising a decorative frame formed by covering a core member made of sheet metal with a flexible elastic material over a predetermined range between the main body casing and the lid. 2. The electronic device according to claim 1, wherein rubber is used as the soft elastic material. 3. The electronic device according to claim 1, wherein a synthetic resin material having elasticity is used as the soft elastic material. 4. The electronic device according to claim 1, wherein the decorative frame is formed by applying a flexible elastic material to a flat plate metal and then bending and forming the plate into a predetermined shape.