JP3154203B2 - Tape drive - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION This invention relates to tape drives such as a small tape recorder with a portable, in particular, those relating to the support shaft Organization of the cassette holder with the cassette lid to the main body of the chassis .

[0002]

2. Description of the Related Art Conventionally, in a tape recorder of this type, a spindle mechanism between a main body side chassis and a cassette holder is formed by zinc die-casting the cassette holder with respect to the chassis as a protective measure for strength when the tape recorder falls. It is firmly configured by using a steel holder guide.

[0003] That is, as shown in FIG. 8, one of the pair of left and right holder guides 2, which is screwed to the chassis 1 side, is fixed to the chassis 1 by swaging. (Or screw fixing), and the other holder guide 3 is screw-fixed on the chassis 1. The holder guides 2 and 3 are provided with shaft portions 2a and 3a on which the cassette holder 4 is rotatably supported. A support portion 5 extending integrally from these left and right sides of the holder body 4a of the cassette holder 4 to the shaft portions 2a, 3a,
The cassette holder 4 is rotatable between a cassette attaching / detaching position and a cassette loading position through the shaft holes 5a, 5a formed in the cassette holder 5.

On the upper surface of both sides of the cassette holder 4, as shown in FIG. 9, a closed cassette lid 6 is provided.
(See FIG. 10). A spring comprising a hop-up leaf spring 7 for releasing the hopper in a hop-up manner, and a cassette half-pressing leaf spring 8 for holding the cassette half integrally with the hop-up leaf spring 7 when the cassette is loaded. A mechanism is provided.

FIGS. 9 and 1 show details of this conventional spring mechanism.
In the case of No. 0, the hop-up leaf spring 7 has a mounting portion 9 at the base end thereof caulked and fixed to the cassette holder 4 by a shaft 10. The leaf spring 8 for holding the cassette half is
The hop-up leaf spring 7 is continuously provided on the distal end side and punched out. Therefore, the distal end of the cassette half pressing leaf spring 8 is formed at a position close to the mounting portion 9. A hop-up leaf spring 7 and a cassette half-press leaf spring 8
Faces an opening 4b formed in the cassette holder 4.

Incidentally, since it is not directly related to the present invention, a brief description will be given below. Referring to FIG. 12 are provided. Further, capstans 13, 13 are respectively erected from the chassis 1 so as to face the two pinch rollers 12, 12. Further, hub drive shafts 14, 14 of a cassette (not shown) are erected on the chassis 1.

The chassis 1 is supported by a main body case 15 in which a tape drive (not shown) is built. The body case 15 is provided with a lock arm 16.
A lock lever 17 formed on the cassette lid 6 is engaged with the lock arm 16, and the cassette lid 6 is kept locked in the closed state. When the lock release knob 18 is slid, the closed state of the cassette lid 6 is released and the cassette lid 6 is opened. Further, reference numerals 19a19b indicate the cassette lid 6
Is a link lever that maintains the open state.

[0008]

However, in the conventional tape recorder configured as described above, the above-described method of assembling the support shaft mechanism portion includes the shaft portion 2a of one holder guide 2 fixed to the chassis 1. Cassette holder 4
In a state where the shaft hole 5a of the one support portion 5 is inserted,
Since the other holder guide 3 is slid into the shaft hole 5a of the other support portion 5 of the cassette holder 4 to insert the shaft portion 3a, and then the holder guide 3 is fixed to the chassis 1 by screws. The assembly work of the shaft mechanism was troublesome. For this reason, there has been an obstacle to assembling the spindle mechanism by the robot.

In the conventional spring mechanism, as shown in FIG. 10, the cassette half-pressing leaf spring 8 protrudes from the hop-up leaf spring 7 toward the cassette insertion side through the opening 4b of the cassette holder 4. When the cassette is inserted into the cassette holder 4, the leaf spring 8 for holding the cassette half is obstructed, and the insertion of the cassette into the cassette holder 4 cannot be carried out smoothly. As a result, there was a problem that the cassette half was damaged.

Further, in the conventional spring mechanism, the base end of the cassette half-pressing leaf spring 8 is connected to the distal end of the hop-up leaf spring 7, and the distal end of the leaf spring 8 is attached to the mounting portion 9. , The cassette lid 6
When the cassette is loaded and the hop-up leaf spring 7 elastically imparts the cassette lid 6 in the opening direction, the cassette half-pressing leaf spring 8 is moved toward the cassette lid 6 as shown in FIG. As a result, the pressing force of the cassette half C becomes insufficient when the cassette is loaded. In such a case, it has conventionally been necessary to add a spring part for holding the cassette half.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems , and a tape drive capable of greatly improving the workability of assembling a spindle mechanism of a cassette holder.
It is intended to obtain a moving device .

[0012]

Means for Solving the Problems] To achieve the above object, a tape drive of claim 1 according to the invention, the support shaft portion of the hand of the cassette holder is formed of a rigid molded body fixed to the main body chassis Pivotally supported by the first holder guide ,
The other support shaft portion is rotatably supported to the support plate which is integrally formed with the body chassis, and held by the second holder guide comprising the axis journal section from a rigid molded body, a second holder guide body side sheet <br / > Screwed to the chassis.

[0013]

[0014]

[Action] tape drive instrumentation of 請 Motomeko 1 configured as described above
In location, when one of the support shaft portion of the cassette holder is rotatably supported by the first holder guide fixed to the main body chassis simultaneously, pivotally supporting the other shaft portion of the cassette holder supporting plate which is integrally molded to the main body chassis Then, the spindle portion between the spindle portion of the cassette holder and the support plate of the chassis on the main body side is moved to the second position.
And the second cassette holder is screwed to the chassis on the main body side to complete the mounting of the cassette holder.

[0015]

[0016]

EXAMPLES Hereinafter, an embodiment of a tape drive of the present invention with reference to the accompanying drawings tape recorder as an example.

FIG. 1 is an exploded perspective view of a main part of the tape recorder according to the present embodiment, and FIGS. 2 and 3 are cross-sectional views of an assembled state of a spindle mechanism of a cassette holder. The reference numerals are given and the duplicate description is omitted.

1 to 3, a first holder guide 2 made of, for example, zinc die-cast is formed on one side (left side in FIG. 1) of the chassis 1 by a rigid molded body.
0 is fixed by caulking, and a shaft portion 21 protrudes inside the first holder guide 20.

The other side (see FIG. 1)
A support plate 22 bent from the chassis 1 is provided upright on the right side of the support plate 1, and a shaft portion 23 formed by burring is protruded from the outside of the support plate 22.

The procedure for assembling the first holder guide 20 thus configured and the support portions 5, 5 provided on the cassette holder 4 on the support plate 22 is performed as follows. That is, the bearings 5, 5 insert and support the shaft holes 5a, 5a into the shaft 21 of the first holder guide 20 and the shaft 23 of the support plate 22, respectively, from one side. In the temporary fixing support state of 5, 5, the zinc die-cast second holder guide 24 made of a rigid molded body is engaged from above so as to sandwich the support portion between the support plate 22 and the support portion 5. The second holder guide 24 has a stopper function for preventing the support plate 22 and the support portion 5 from coming off, so that the first holder guide 20 and the support portion 5 can be simultaneously prevented from coming off. From this state, the second holder guide 24 is fixed to the chassis 1 with the screws 24a, whereby the attachment of the cassette holder 4 is completed.

On the other hand, on the upper surface on both sides of the cassette holder 4, a first leaf spring 25 for hopping up the cassette lid, and a second leaf spring 26 for holding the cassette formed integrally with the first leaf spring 25 are provided. Are provided respectively.

Referring to FIGS. 4 and 5, the first leaf spring 25 has a base end 25 which faces an opening 27 opened in the cassette holder 4. As shown in FIG.
a is fixed to the cassette holder 4 by caulking the shaft 28. Further, the above-mentioned second leaf spring 26 is integrally formed in parallel with the first leaf spring 25. Here, the first leaf spring 25 is slightly inclined and deformed to the cassette lid 6 side,
The second leaf spring 26 is inclined and deformed to the opposite side to the first leaf spring 25, but the tip of the second leaf spring 26 is projected toward the chassis 1 through the opening 27 of the cassette holder 4. Not.

The spring mechanism configured as described above operates as follows. That is, when the cassette is attached to and detached from the cassette holder 4, the cassette comes into contact with the second leaf spring 26 because the second leaf spring 26 for holding down the cassette half is retracted from the opening 27 of the cassette holder 4. This allows smooth attachment and detachment without the need.

In the cassette loaded state with the cassette lid 6 closed, the first leaf spring 2 for hop-up is used.
5 deforms the cassette lid 6 toward the cassette so that the cassette lid 6 is elastically provided in the opening direction (hop-up direction).
The operation of securely pressing the cassette half C can be performed by the second leaf spring 26 deforming as shown in FIG.

When the cassette lid 6 is opened from the cassette loaded state to the cassette detached state, the first leaf spring 2
Due to the spring repulsion force of 5, the cassette lid 6 hops up in the opening direction.

In FIG. 1, reference numerals 29, 29 denote a pair of cassette half guide posts provided on the chassis 1 near the capstans 13, 13 for positioning the cassette when the cassette is loaded. The cassette half guide posts 29, 29 are integrally formed by drawing from the chassis 1 as shown in FIG. As a result, the number of parts can be reduced as compared with the conventional method in which the guide post 23 is outsert molded or the guide post shaft is caulked and fixed, and the caulking cost is reduced, and the guide post is greatly reduced. There is an advantage that strength can be improved.

As described above, in the tape recorder according to the present invention, in the spindle mechanism of the cassette holder 4, one support 5 of the cassette holder 4 is provided with the first holder guide 20 fixed to the chassis 1. The other support part 5 of the cassette holder 4 is supported on a burring-processed shaft part 23 of a support plate 22 bent and raised from the chassis 1 and temporarily fixed to the other support part 5 and the support plate 2.
2 and the second holder guide 24 is incorporated from above,
Since the second holder guide 24 is screw-fixed to the chassis 1, there is no need to slide the holder guide from the side as in the related art, and the workability of assembling the spindle mechanism of the cassette holder is greatly improved. Can be improved.

In the pressing spring mechanism of the cassette half, the second leaf spring 26 is retracted out of the cassette holder 4 when the cassette is attached or detached, so that the cassette comes into contact with the second leaf spring 26. When the cassette is loaded, the second leaf spring 26 is spring-deformed to the cassette side by the spring deformation force of the first leaf spring 25, so that the cassette half can be reliably pressed.

The present invention is not limited to the embodiment described above and shown in the drawings, and various modifications can be made without departing from the scope of the invention. For example, in the embodiment, the holder guides 20 and 24 are described as being manufactured from die-cast zinc. However, other members may be used as long as they are formed from a rigid molded body.

[0030]

As described above, the tape according to the present invention is used.
The drive unit includes a support plate in which one spindle of the cassette holder is supported by a first holder guide formed of a rigid molded body fixed to the main body chassis, and the other spindle is integrally formed with the main body chassis. And temporarily fixed, and the supporting portion on the support plate side was held by a second holder guide made of a rigid molded body, and the second holder guide was screw-fixed to the main body side chassis. The workability of assembling the spindle mechanism can be greatly improved, thereby making it possible to assemble the cassette holder by an automatic machine, thereby reducing the number of assembling steps.

[0031]

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part of a tape recorder in the present embodiment.

FIG. 2 is a partial cross-sectional view of the spindle portion of the cassette holder in a temporarily fixed state.

FIG. 3 is a partial cross-sectional view of a support shaft of a cassette holder in a supported state.

FIG. 4 is a perspective view of a spring mechanism.

FIG. 5 is a sectional view of a cassette lid hop-up state.

FIG. 6 is a cross-sectional view of a cassette lid closed state.

FIG. 7 is a sectional view of a cassette half guide post.

FIG. 8 is an exploded perspective view of a main part of a conventional tape recorder.

FIG. 9 is a perspective view of a conventional spring mechanism.

FIG. 10 is a cross-sectional view of a conventional tape recorder with a cassette lid opened.

FIG. 11 is a cross-sectional view of a conventional tape recorder with a cassette lid closed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chassis 4 Cassette holder 4a Holder main body 5 Support part 5a Shaft hole 6 Cassette lid 11 Playback head 12 Pinch roller 13 Capstan 14 Reel drive shaft 20 First holder guide 21 Shaft part 22 Support plate 23 Shaft part 24 Second holder Guide 25 First leaf spring 26 Second leaf spring 27 Opening 29 Cassette half guide post C Cassette half

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G11B 15/675

Claims (1)

(57) [Claims] 1. A tape drive device in which a cassette holder having a cassette lid with respect to a main body side chassis is rotatable about a support shaft as a fulcrum between a cassette attaching / detaching side and a cassette loading side. One of the support shafts is supported by a first holder guide formed of a rigid molded body fixed to the main body chassis, and the other support is supported by a support plate integrally formed with the main body chassis. A tape drive device wherein the shaft support portion is held by a second holder guide made of a rigid molded body, and the second holder guide is screw-fixed to the main body side chassis.