JP3050088B2 - Tape recorder - 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 recorder, and more particularly to a tape recorder in which a holder body is rotatably mounted on a substrate.

[0002]

2. Description of the Related Art As shown in FIGS. 4 and 5, a holder support 3 having holder bodies 1 mounted on both sides of a substrate 2 is shown.
In the tape recorder which is rotatably mounted on the substrate 2 via the connector 2, the holder main body 1 is attached to the substrate 2 by projecting from the holder support base 3 into a fitting hole 1a provided in the holder main body 1. The two holder supports 3 are screwed at predetermined positions on the substrate 2 while holding the holder main body 1 with the both holder supports 3 in a state where the shaft 3a is fitted.

[0003]

However, the conventional mounting structure of the holder main body 1 to the substrate 2 as described above has a problem that it takes a long time to assemble and that the assembler also requires skill. SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems with the conventional mounting structure, and has as its object to provide a tape recorder having a mounting structure with respect to a substrate of a holder body that can be easily assembled by anyone. The purpose is.

[0004]

In order to achieve the above-mentioned object, a tape recorder according to the present invention comprises a magnetic head and a pinch roller which are pivotally connected to a capstan in such a manner that the pinch roller is brought into pressure contact and non-pressure contact. holder body which holds the pinch roller arm by a predetermined angle rotation as a fulcrum is in a tape recorder that is installed rotatably with respect to the substrate through the holder support base pair, the holder support base of said pair
Are fixed to the substrate, the support base has side walls facing each other, a shaft protruding from the side walls, a stopper wall formed on the outer peripheral front side, and a mounting state of the holder body.
The rotation stop wall that stops the rotation exceeding the predetermined range in
The holder body has an axis of the holder support.
A fitting hole , a part of which is opened to the vertical wall side of the holder body so as to be fitted to the
A rotation stopping claw that is formed so as to respond to the
Upon attachment to the holder support base Zehnder body, wherein 1 to holder support base of the shaft of the pair, after fitting the Goana fitted to the upper wall of the above the holder body in a substantially vertical shape from the opening , When the holder body is in the tape cassette mounted state .
By rotating up to location, a rotation stop wall formed on the holder support base rotation stop pawl which is suspended form the holder body Te Yue ride against its spring bias and mounted state, ho
When mounted on the rudder body
It is configured such that rotation exceeding the range can be stopped .

[0005]

The tape recorder of the present invention is constructed as described above.
By doing so , after a pair of holder support bases are screwed in place on the substrate in advance, the upper wall of the holder main body is vertically set from above the shaft, and a fitting hole is fitted through the opening,
The assembly is completed only by rotating the tape cassette to the mounted state. Then, at this time, since the rotation stopping claw hanging down on the holder main body is bent against the bias of the spring and rides over the rotation stopping wall formed on the holder support, the holder exceeding the predetermined range after the assembly is completed. The rotation of the main body is prevented by the rotation-stopping pawl abutting against the rotation-stopping wall, and the detachment is inevitably prevented.

[0006]

1 to 3 show a tape recorder according to the present invention.
A description will be given based on one embodiment shown in FIG. FIG. 1 is a plan view showing the appearance of a main part of a tape recorder according to an embodiment of the present invention, FIG. 2 is a plan view showing the tape cassette as viewed from the back, and FIGS. FIG. 7 is a view for sequentially explaining a procedure for attaching the holder body so as to be freely rotatable within a predetermined range.

In FIG. 1 to FIG. 3, reference numeral 11 denotes a first and a second holder supporting bases 12a screwed to both sides of the substrate 2.
12b is a holder main body rotatably provided with respect to the substrate 2 via the second main body 12b.
Pinch roller arms 13a, 13b and head arm 1
As shown in FIGS. 1 and 2, upper and lower walls 11c and 11d and upper and lower walls 1c and 11d
A vertical wall 11e connecting 1c and 11d is formed in a U-shape, and a part of holes 11aa and 11ba opened in these upper and lower walls 11c and 11d is opened on the opposite side to the vertical wall 11e. In addition, 11ab and 11bb are holes 11a.
a and 11ba show openings provided in a part of them. In this embodiment, the second pinch roller arm 13b and the head arm 1
No. 4 is held by the same rotation center holding portion 11b.

Also, at one end of the first and second pinch roller arms 13a, 13b and the head arm 14 fitted to the rotation center holding portions 11a, 11b of the holder body 11, pivot shafts 13aa, 13ba and 14
a, and both ends of the pivot 13aa,
One end located outside the pivots 13ba and 14a is formed as an oval through which the openings 11ab and 11bb can pass. In the present embodiment, the other ends located inside the pivots 13ba and 14a are fitted with appropriate asperities that are relatively rotatable.

Therefore, the first pinch roller arm 1
3a, the short side of the oblong shape of both ends of the pivot 13aa is parallel to the opening 11ab and inserted into the hole 11aa, and then the first pinch roller arm 13a is rotated only to the normal use range to complete the assembly. Complete. In the second pinch roller arm 13b and the head arm 14, since the opening 11bb is L-shaped,
At the entrance of 1bb, the second pinch roller arm 13b and the head arm 14 are fitted into the concave and convex so as to be relatively rotatable. After being inserted in parallel, the direction is changed by 90 °, and the short side is made parallel to the opening 11bb, and inserted into the hole 11ba. Thereafter, the second pinch roller arm 13b and the head arm 14 are brought together to the normal use range. The assembly is completed only by turning.

After the assembly is completed, the head arm 14 is urged in a direction away from the magnetic tape by the spring 15, so that when the head arm 14 rotates by a predetermined angle or more, the short side of the oval portion of the pivot 14a is formed. Open side 11
bb and escape from the opening 11bb is prevented. Also, the first and second pinch roller arms 13a, 1
3b, as shown in FIG.
bb abuts on a locking portion 14b formed on the head arm 14 so that the first and second pinch roller arms 13
a and 13b are rotated by a predetermined angle or more, so that the pivot 1
The short side of the oval portion of 3aa, 13ba has an opening 11ab,
Leaving from 11bb is prevented.

The present invention provides, for example, the head arm 14 and the first and second pinch roller arms 13a,
The following structure is adopted when the holder main body 11 holding 13b is rotatably mounted on the substrate 2 via the first and second holder support bases 12a and 12b. That is, reference numerals 12aa and 12ba denote shafts protruding from side walls of the first and second holder support bases 12a and 12b facing each other, and detachment prevention walls 12ab and 12bb are provided on the outer peripheral front side of these shafts 12aa and 12ba. Is formed. 11fa and 11fb are the shafts 12aa and 12
The fitting holes 11fa and 11fb are opened in the holder main body 11 on the side of the vertical wall 11e. 11faa and 11fba are fitting holes 11fa and 11f.
b shows an opening.

As shown in FIGS. 3A and 3B, the shafts 12aa and 12ba of the first and second holder supports 12a and 12b screwed to the substrate 2 in advance are placed above the shafts 12aa and 12ba. The upper wall 11c of the holder body 11 is made substantially vertical, and the fitting holes 11fa and 11fb
After fitting from 1faa and 11fba, as shown in FIG. 3 (c) to FIG. 3 (e), the substrate 2 of the holder main body 11 is rotated by rotating to the tape cassette mounting state.
The installation for is completed.

However, with the above-described structure alone, the fitting between the holder main body 11 and the first and second holder supporting tables 12a and 12b is disengaged due to the rotation beyond the predetermined range.
In the present invention, the first and second holder supports 12a, 12
b, rotation-stopping walls 12ac and 12bc are formed, and the rotation-stopping claws 11ga and 11gb are formed to hang down on the holder body 11 corresponding to the rotation-stopping walls 12ac and 12bc.

With such a configuration, as described above,
When the holder main body 11 is rotated to the tape cassette mounting state to complete the attachment to the substrate 2, the rotation stopping claws 11ga, 11gb have passed over the rotation stopping walls 12ac, 12bc against the bias of the spring. Therefore, after the attachment is completed, the rotation of the holder main body 11 exceeding the predetermined range does not rotate as shown in FIG.
The rotation stopping pawls 11ga, 11gb abut against 2bc, so that they are prevented from coming off, and the removal is inevitably prevented.

Further, the rotation stopping claws 11ga, 11gb
Is formed integrally with the tape cassette pressing leaf springs 18a and 18b, assembly can be performed more easily. In FIGS. 1 and 2, 16a and 16b denote first and second capstans, and 17a and 17b denote first and second pinch rollers.

[0016]

As described above, according to the tape recorder of the present invention, the magnetic head and the capstan are
The pinch roller is rotating so as to take the pressed and non-pressed positions.
A pinch roller arm that rotates a predetermined angle around the center
Holder body is held via a pair of holder supports
To a tape recorder that is installed rotatably with respect to the substrate.
The pair of holder supports are fixed to a substrate.
The support base has side walls facing each other,
A shaft protruding from the side wall and a through hole formed on the outer peripheral front side
Prevent the wall and the specified range when the holder body is attached.
The holder having a rotation stopping wall for stopping rotation exceeding
The main body is fitted so that it fits on the shaft of the holder support.
The fitting hole which opened the part to the vertical wall side of the holder body, and the front
Hanging type to correspond to the rotation stop wall of the holder support
The holder of the holder body having the formed rotation stopping claw
When mounting on the support base, the pair of holder support bases
The upper wall of the holder body is approximately vertical from above the axis
After the fitting hole is fitted through the opening, the holder
Rotate the main unit to the position where the tape cassette is
By doing so, the rotation stop wall formed on the holder support
The rotation stopping claw formed on the holder body is biased by its spring.
To mount the holder body
In the state, the rotation stops beyond the predetermined range by the rotation stop claw
After a pair of holder supports are fixed to a predetermined position of the substrate in advance, the upper wall of the holder main body is made substantially vertical from above the shaft, and the fitting hole is formed. Since the assembly is completed only by fitting into the opening and rotating to the position where the tape cassette is mounted, anyone can easily and easily assemble. Then, this time, since overcome the rotation stop wall formed on the holder support base flexes rotation stop pawl which is suspended form the holder body against the spring bias, after the completion of assembly, the rotation stop pawl
Of the tape cassette mounted over the rotation stop wall
The rotation of the holder main body beyond a predetermined range of the position is prevented by the rotation stopping claw abutting on the rotation stopping wall, and the removal is inevitably prevented. Further, if the rotation stopping claw is formed integrally with the tape cassette pressing leaf spring, assembly can be performed more easily and easily.

[Brief description of the drawings]

FIG. 1 is a plan view showing an appearance of a main part of a tape recorder according to an embodiment of the present invention.

FIG. 2 is a plan view showing the tape cassette as viewed from the back.

FIGS. 3 (a) to 3 (f) are views for sequentially explaining a procedure of attaching a holder body to a substrate so as to be rotatable within a predetermined range.

FIG. 4 is a side view of a peripheral portion of a cassette holding member in a conventional tape recorder.

FIG. 5 is a view for explaining how to attach a holder body in a conventional tape recorder.

[Explanation of symbols]

 2 Substrate 11 Holder body 11c Upper wall 11e Vertical wall 11fa Fitting hole 11faa opening 11fb Fitting hole 11fba opening 11ga Rotation stopping claw 11gb Rotation stopping claw 12a First holder support base 12aa Shaft 12ab Drop prevention wall 12ac Rotation stopping Wall 12b Second holder support 12ba Shaft 12bb Prevention wall 12bc Rotation stop wall 13a First pinch roller arm 13b Second pinch roller arm 16a First capstan 16b Second capstan 17a First pinch Roller 17b Second pinch roller 18a Leaf spring for pressing tape cassette 18b Leaf spring for pressing tape cassette

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G11B 15/675 101 G11B 33/02 502

Claims (2)

(57) [Claims] A pair of a holder body holding a magnetic head and a pinch roller arm that rotates by a predetermined angle about a rotation center as a fulcrum so that a pinch roller is pressed and non-pressed against the capstan. in a tape recorder installed rotatably with respect to the substrate through the holder support base, the holder support base of the pair is fixed to the substrate,
The support base has side walls facing each other, a shaft protruding from the side walls, and a slip-off prevention wall formed on the outer peripheral front side.
Exceeds the specified range when the holder body is mounted
Has a rotation restraining wall restrains rotation, the holder body is fitted to the holder support base of the shaft
The fitting hole , which is partially opened to the vertical wall side of the holder main body as much as possible , corresponds to the rotation stopping wall of the holder support.
Has a rotation-stopping claw formed so as to hang down , when mounting the holder body to the holder support,
Wherein 1 to holder support base of the shaft of the pair, times until the upper wall of the above the holder body after the Goana fitted in the substantially vertical shape fit from the opening, the holder body to the position of the tape cassette loading state by moving, mounted like a rotation stop wall formed on the holder support base rotation stop pawl which is suspended form the holder body gets over against its spring bias
When the holder body is mounted, the rotation stop claw is
Tape recorder, characterized by being configured to so that Do allow stop the rotation beyond a predetermined range by. 2. The tape recorder according to claim 1, wherein said rotation stopping claw is formed integrally with a tape cassette pressing leaf spring.