JP2559017B2 - Cassette 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 cassette tape recorder that enables cost reduction.

[0002]

2. Description of the Related Art In recent years, cassette tape recorders have been reduced in size and price.

Conventionally, in order to stabilize the position of the tape cassette to stabilize its performance, the back surface of the tape cassette is pressed by an elastic member such as a leaf spring. As another method, an elastic member such as a leaf spring is inserted into the positioning hole of the tape cassette.

[0004]

However, the conventional cassette tape recorder as described above is large in size because the back surface of the tape cassette is pressed by the elastic member such as a leaf spring, and is expensive because the number of parts is large. Further, when an elastic member such as a leaf spring is inserted into the positioning hole of the tape cassette, this also has a problem that the number of parts increases and the cost becomes high.

In view of the above problems of the prior art, the present invention has been made for the purpose of providing a cassette tape recorder which can be downsized and realized at low cost, and which has a good tape cassette mountability. is there.

[0006]

In order to solve the above problems, a cassette tape recorder according to the present invention has a magnetic tape built-in, and a tape cassette having a capstan insertion hole, a positioning hole, etc. is magnetic in the positioning hole. A cassette tape recorder provided with a pressing means for pressing in the direction of the head and a restricting means for restricting the movement of the tape cassette due to this pressing to determine the position of the tape cassette, wherein the pressing means is fixed at one end thereof. Change the other end on the magnetic head side.
The inverted V-shape to enable position, and the standoff with the resin material having elasticity on a substrate which is integrally molded with resin material constituted by molded integrally as above pillars, above in the displaceable other end
The tape cassette is configured to be pressed .

[0007]

The configuration DETAILED DESCRIPTION OF THE INVENTION The present invention described above, the pressing means, since the standoff is formed by molding integrally in the same manner as described above post in the resin material having elasticity integrally molded substrate with a resin material, downsizing It is possible to achieve lower prices. Also above
One end of the pressing means is fixed and the other end of the magnetic head side is displaced.
The inverted V shape that was made possible allows the tape cassette to be pushed.
The pressure should be stable and the tape cassette should be installed well.
In addition, the tape cassette
Since it is configured to press the cassette, the tape cassette
Even if it is attached and detached by turning it back and forth, the abutting part will wear and shavings will be generated
There is no problem such as doing.

[0008]

Embodiments of the tape recorder of the present invention will be described in detail below with reference to FIGS.

1 to 3 show the external appearance of the main part, FIG. 1 is a plan view, FIG. 2 is a rear view showing the state as seen from the rear side of the tape cassette, and FIG. 3 is a rear view. 4 to 8 are side views of the tape cassette as seen from the side of the tape cassette showing the running state and the detached state of the magnetic tape.

In the figure, reference numeral 1 is an upper substrate, and a magnetic tape 3 of a tape cassette 2 is provided with a pair of reel hubs 2a and 2b.
A storage portion 2c that stores a winding portion (not shown) wound around
And is formed thicker than the accommodating portion 2c having an opening (not shown) for inserting the magnetic head 4, the first and second pinch rollers 5, 6 of the tape cassette 2. A notch 1a is formed so as to escape the insertion portion 2d. Reference numeral 7 denotes a lower substrate, which is formed along the insertion portion 2d and is fixed to columns (not shown) with a gap from the upper substrate 1. Reference numerals 9 and 10 denote first and second holder support bases, which are fixed to the upper substrate 1 and rotatably support the holder body 11 by shaft portions 9a and 10a.

The holder main body 11 has first and second holders 14 and 15 which are fixed to both ends to accommodate the tape cassette 2, and the magnetic head 4 is fixed. The first and second pinch rollers 5 and 6 are attached to the shafts 22 and 23 of the first and second pinch roller arms 20 and 21 which are rotatably arranged on the pair of shafts 18 and 19 of the holder body 11. It is rotatably installed. Reference numerals 36 and 37 denote first and second capstans, which integrally have first and second flywheels 38 and 39.

Reference numeral 137 denotes a control rod, which is the shaft 1 of the lower substrate 7.
36 is slidably provided. Reference numerals 138 and 139 denote first and second pinch roller control shafts, which are used for the control rod 13
7 is fixed to the first and second pinch roller arms 2
Abutting against the control parts 20b and 21b formed on 0 and 21,
The first and second pinch rollers 5 and 6 are connected to the first and second pinch rollers.
7 is controlled so as to be pressed against and separated from the capstans 36 and 37 of FIG. 7, and the tape cassette 2 of FIG. 7 can be attached to and detached from the position where the magnetic tape 3 can run and the first and second holders 14 and 15 of FIG. The holder body 11 in the position
When the first and second pinch roller arms 20 and 21 are rotated, the first and second pinch roller arms 20 and 21 do not come into contact with the inner wall portion 11b of the holder body 11, and the first and second pinch rollers 5 and 6 do not contact. So as not to come into pressure contact with the first and second capstans 36 and 37, the first and second pinch roller arms 20,
Bending part 138 for controlling the control parts 20b, 21b of 21
a, 139a are formed.

Reference numeral 157 is a cassette pressing spring, which is integrally molded in a reverse V shape with a resin material having elasticity on the lower substrate 7.
Moreover, one end 157a is integrally formed with the second support column 49, and the other end 157b is displaceably formed. The cassette pressing spring 157 is molded by a fixed mold 158 and a movable mold 159 as shown in FIG.

The cassette pressing spring 157 has a positioning hole 2e for the tape cassette 2 when the tape cassette 2 is mounted at a position where the magnetic tape 3 can travel as shown in FIG.
And the other end 157b is displaced.

The second support column 49 has a first metal support plate 43 having a first lower metal 41 rotatably supporting the first capstan 36 and fixed together with the first support column 48. There is. It goes without saying that the first support column 48 can be integrally molded with the other support column on the lower substrate 7 with the resin material.

The convex portions 9b of the holder support bases 9 and 10,
Reference numeral 10b denotes both front end portions 2f and 2g of the tape cassette 2.
It is formed so that it may contact.

The operation of the tape recorder configured as described above will be described below.

First, the mounting operation of the tape cassette will be described. The holder body 11 and the first and second cassette holders 14 and 15 are rotated counterclockwise against the spring 35 as shown in FIGS.
Are stored in the first and second holders 14 and 15.
At this time, the magnetic head 4, the first and second pinch rollers 5, 6 supported by the holder body 11 are inserted into the opening (not shown) of the tape cassette 2. In this state, when the holder body 11 and the first and second holders 14 and 15 are rotated clockwise from the states shown in FIGS. 5 and 8 to the states shown in FIGS. 4 and 7, the tape cassette 2 runs on the tape. It is installed in the position.

When the holder main body 11 and the first and second holders 14 and 15 are rotated clockwise, the first and second holders 11 and 14 are moved.
The second pinch roller arms 20 and 21 are connected to the control unit 2 described above.
0b and 21b are the first and second pinch roller control shafts 1
The first and second pinch roller arms 20 and 21 are controlled so as not to contact the inner wall portion 11b of the holder body 11 under the control of the curved portions 138a and 139a of the first and second portions 38 and 139, respectively. 2 pinch rollers 5, 6
Are controlled so as not to be in pressure contact with the first and second capstans 36 and 37.

When the tape cassette 2 is mounted as shown in FIGS. 4 and 7, the cassette pressing spring 157 is inserted into the positioning hole 2e of the tape cassette 2 and the other end 157b of the cassette pressing spring 157 is inserted. The tape cassette 2 is pressed in the direction of arrow C by the restoring force due to the displacement. The movement caused by this pressing causes the convex portions 9b and 10b of the first and second holder support bases 9 and 10 to move to the front end portions 2 of both ends.
The guide shaft 167 provided on the lower base 7 is blocked by abutting against the f and 2g, and the other positioning hole 2h
The tape cassette 2 is positioned in the mounted state by performing the positioning in the directions of the arrow A and the arrow B, which are the magnetic tape running directions. At this time, the cassette pressing spring 15
Since 7 has an inverted V shape, it can be smoothly inserted into the positioning hole 2e.

[0021]

The present invention as described above, according to the present invention is the configuration described above, the pressing means, the standoff with the resin material having elasticity on a substrate which is integrally molded from a resin material by molding integrally as above post Since it is formed, downsizing can be achieved and cost reduction can be realized. In addition , one end of the pressing means is fixed and the magnetic
The other end on the head side has an inverted V shape that allows displacement.
Thus, the pressing of the tape cassette becomes stable and the tape cassette can be easily mounted. Furthermore, at the other end that can be displaced
Since the tape cassette is configured to be pressed, the tape
Even if the cassette is repeatedly attached and detached, the abutting part will wear.
There are no problems such as shavings and shavings.

[Brief description of 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 rear view showing the tape cassette as seen from the back side.

[Figure 3] Rear view of the same

FIG. 4 is a side view showing the action of the cassette pressing spring with the tape cassette mounted in the running position.

FIG. 5 is a side view showing a state in which the tape cassette is in a detached position.

FIG. 6 is a schematic cross-sectional view showing a molded state of the cassette pressing spring.

FIG. 7 is a side view showing the action of the pinch roller control shaft with the tape cassette mounted in the running position.

FIG. 8 is a side view showing a state in which the tape cassette is in a release position.

[Explanation of symbols]

 2 tape cassette 2e positioning hole 4 magnetic head 6 second pinch roller 7 lower substrate 9 first holder support base 10 second holder support base 49 second support 157 cassette pressing spring

Claims (1)

(57) [Claims] 1. A built-in magnetic tape, insertion holes of the capstan, the position of the tape cassette having locating holes, etc.
A cassette tape recorder provided with a pressing means for pressing in the direction of the magnetic head in the determining hole, and a restricting means for restricting the movement of the tape cassette due to this pressing to determine the position of the tape cassette. Fixed one end
The magnetic head side and the other end to an inverted V-shape to allow displacement of, and the standoff constructed by molding integrally as above post in the resin material having elasticity on a substrate which is integrally molded with resin material, Press the tape cassette with the other displaceable end
A cassette tape recorder characterized by having the above structure .