JPS63106954A - Cassette type tape player - Google Patents

Abstract

PURPOSE:To prevent floating phenomenon due to externally moved vibrating operation, by constituting a connecting piece so as to be abutted with a stopping piece in the direction of the backward movement of an operating member. CONSTITUTION:When a cassette P is moved in a direction of ejecting with a guide part piece 8, an operating piece 5 is released, therefore, a holding member 14 is turned in a clockwise direction by a restoring spring 27, and when a front part frame 5a is placed in a horizontal state by the above turning function, and the tongue piece 16 of the holding member 14 is abutted with the upper edge of the side plate of a vessel frame 1 again, and a cassette holder 5 is kept in the horizontal state with the holding member 14, and by releasing the press of the eject lever 4 from the state, the holder is moved backward a little by a spring 19, and the stopping piece 18 is abutted with the connecting piece 20, thereby, restoring to a non-playing state, and also, the resiliency of the spring 19 is pressed on the connecting piece 20. In this way, it is possible to prevent the floating phenomenon of the cassette holder due to the externally moved vibrating operation from occurring.

Description

DETAILED DESCRIPTION OF THE INVENTION The industrial field of application relates to cassette tape players which are particularly useful for vehicle use.

Conventional technology and problems Conventionally, a cassette holder that is attached to a container frame and moves downward to set the play state when a cassette is inserted from a non-play state where the cassette can be inserted and removed, and a cassette holder that is pivoted to the cassette holder. When the cassette is inserted into the free end of the rotary piece and the cassette holder, the guide piece is attached between the free end of the rotating piece and the guide piece that can move forward and backward when the cassette is inserted into the cassette holder, and during the movement of the guide piece. A reversing spring that is reversed at the cassette holder and forcibly biases the guide piece in the direction of its movement, and a reversing spring that prevents the cassette holder from moving downward when the cassette is fully inserted into the cassette holder when the cassette is fully inserted into the cassette holder. a holding member that releases the blocking; and an eject lever that is attached to the lid frame so as to be movable back and forth, and that by the back and forth movement of the holding member reciprocally rotates the rotating member via a connecting rod, and that is always biased rearward. is rotatably attached to the lid frame, engages with the force center holder, and is rotatably biased so as to constantly bias it in the downward direction, and its forward rotation state is interlocked with the ejector lever, and engages with the actuating member in a non-playing state to prevent the actuating member from moving backward, and prevents the actuating member from moving forward. A cassette-type tape player comprising a transmission member which is released from its attachment when rotated and which is always biased rearward is known, for example, from Japanese Patent Application Laid-Open No. 160057/1983.

However, according to the above-mentioned tape player, in order to prevent the cassette holder from floating due to strong external vibration in the playing state and making the playing state uncertain, the cassette holder is rotated in the forward direction. The actuating member that holds the cassette holder in the play state has a biasing force that biases itself to rotate in the forward direction, a biasing force that biases the eject lever in the restoring direction, and a biasing force due to the reversal spring. However, according to this configuration, the actuating member maintains the pressure contact state between the stop piece provided on the eject lever and the welded locking piece provided on the actuating member in the forward movement direction. rotate, and
Since the cassette holder is intended to be held even in the playing state in which it moves downward, strong external vibrations caused by the engine of the car or the unevenness of the road surface while the car is running will damage the stop pieces and the locking pieces. If the contact force exceeds the contact force of If the biasing force of the eject lever and the elasticity of the reversing spring are increased in order to prevent this, the tape cassette insertion and ejection operations become difficult.

In addition, according to the conventional configuration, it is necessary to separately equip the eject lever with a transmission member that prevents the interlocking member from moving back and a restoring spring, which increases the number of parts and increases costs. There were some inconveniences.

OBJECT AND CONSTRUCTION OF THE INVENTION Therefore, the present application solves the above-mentioned disadvantages of the conventional tape player, and its structure is such that the transmission member and the restoring spring are omitted in the cassette-type tape player having the above-mentioned conventional structure. At the same time, until the actuating member rotates in the forward direction and the cassette holder reaches a play state in which it moves downward, the welded locking piece provided on the actuating member maintains the pressed state between the stopper piece, In the play state, the locking piece is configured to come into contact with the stopper provided on the eject lever in the direction of backward movement of the operating member, thereby ensuring that the lifting phenomenon caused by external vibration on the cassette holder is prevented. This was to prevent this.

Embodiments and Functions Below, the embodiments of the present application will be described in detail with reference to the drawings. (1) is a lid frame, and on one side are operating levers (2) and (3) for a tape fast-forwarding mechanism, etc. in a horizontal state. An eject lever (4) is installed on the other side so as to be movable back and forth in a vertical position. A longitudinally long cassette holder consisting of a front frame (5) a supported vertically tiltably by a cassette holder 6) and a rear frame (5) b connected to its rear edge and capable of vertically movable in a horizontal state. The front frame (5
) The center part of a has a guide groove (7) extending in the front-rear direction (left-right direction in the figure), and when the cassette P is inserted into the cassette holder (5), one side of the guide groove (7) is formed. A guide piece (8) that engages with the reel hole is slidably mounted. (9) One end is the front frame (5)a
A support piece (11) is pivotally attached to the upper surface of the eject lever (4) via a pivot (10) and is provided in the middle part of the eject lever (4).
A rotating piece that locks the other end of a connecting rod (12), one end of which is supported at A reversing spring (13) that presses P to the eject position is the attachment.

(14) is the front frame (5) a of the cassette holder (5);
is a flat plate-shaped holding member attached to the upper inner surface of the member so as to be horizontally rotatable by the pivot shaft (10), and on one side thereof is provided with an operating piece (1) extending across the guide groove (7).
5), and a tongue piece (16) is provided on the outer side, and by bringing the snow surface of the tongue piece (16) into contact with the upper edge of the side plate of the lid frame (1), The holding member (14)
The cassette holder (5) is held in a horizontal state via the cassette holder (5). (17) is a plate-shaped actuating part that is vertically rotatably attached to one side of the lid frame (1) via a pivot (21), and is located rearward from the pivot point (to the right in the figure). The piece (17)a extending in the direction (direction) is engaged with a stop piece (18) bent at the front end of the eject lever (4), thereby locking the eject lever (4) into its biasing spring (19). A melt-like locking piece (20) that holds the cassette holder (5) in the eject position against the A locking pin (22) that locks with the notch groove (21) provided on the side surface of the front frame (5)a is provided, and the actuating member (
A spring (23) is stretched between the locking pin (22) and the lid frame (1), and the spring (23) biases the actuating member (17) with rotational force so as to constantly press the locking pin (22) downward. It is. (
24) is a hanging part extending below the eject lever (4), and a sliding groove (24) extending in the front-rear direction is formed in this part.
5) is engaged with a guide piece (26) provided on the lid frame (1). (27) is the restoring spring of the holding member (14), (28) is the reel shaft provided on the lid frame surface, (29)
is a head plate with a head (30), (31) is a motor, and (32) is a front frame (5) of a cassette holder (5).
) This is a stopper that restricts the upward movement of b.

However, when the cassette P is inserted into the rear frame (5) b of the cassette holder (5) from the non-playing state shown in Fig. 1.2, one reel hole of the cassette P is inserted into the guide piece (8). As the guide piece (8) is engaged, the guide piece (8) moves forward, and along with the movement, the reversing spring (13) is reversed, and due to the reversing elasticity, the cassette P is automatically moved together with the guide piece (8). Penetrate deeply into the cassette holder (5). Then, the action piece (15) crossing the guide groove (7)
Being pressed by the cassette P, the holding piece (14) resists the restoring spring (27) and horizontally rotates counterclockwise in FIG.
) comes off the upper edge of the side plate, so in non-playing conditions,
The front frame (5) a of the cassette holder (5), which was held in a horizontal state via the holding piece (14), is allowed to tilt downward. Therefore, the spring (23) causes the actuating part (17) to rotate counterclockwise in FIG.
When the locking piece (18) and the locking piece (20) are disengaged, the eject lever (4) is moved to the position where the eject lever (4) can be operated by the spring (19), that is, the guide piece (2) provided on the lid frame (1).
6), and the locking pin (22
) and the notch groove (21), the front frame (5) a
tilts downward, and the front frame (5)b descends horizontally to enter the play state as shown in Figure 3.4. In this state, the lower edge of the locking piece (20) is locked. It abuts the upper edge of the piece (18). Therefore, a floating force is applied to the cassette holder (5) due to the external vibration, and this causes the notch groove (
21) and the locking pin (22), even if a clockwise rotational force is applied to the actuating member (17) in FIG. 4, the rotational force is received by the locking piece (18). will be stopped.

Also, from the state shown in Figure 3.4, the eject lever (4
) is pushed forward against the spring (19), the connecting rod (12) rotates the rotating piece (9) counterclockwise in Fig. 3, and the movement of its free end causes the The reversing spring (13) performs a reversing operation, and due to its reversing elasticity, the guide piece (8) is guided along with the cassette P into the guide groove (7) and moves to the right in FIG. 3, that is, in the ejecting direction. On the other hand, since the tip of the eject lever (4) rotates the actuating member (17) clockwise in FIG. 4 against its spring (23), the locking pin (22) and notch groove (21 ), the front frame (5) a of the cassette holder (5) tilts upward.

Furthermore, when the cassette P moves in the eject direction together with the guide piece (8), the action piece (15) is released, so the holding member (14) is rotated clockwise in FIG. 3 by the restoring spring (27). However, due to its rotational action,
When the front frame (5) a reaches a horizontal state, the tongue piece (16) of the holding member (14) comes into contact with the upper edge of the side plate of the lid frame (1) again, and the cassette is held together with the holding member (14). Holder (5
) is held in a horizontal state, and when the eject lever (4) is released from this state, it is moved back slightly by the spring (19), and the stopper (18) comes into contact with the stopper (20) and the ejector lever (4) is released. 1.2 Return to the non-playing state shown in Figure 2, and
The locking piece (20) is biased by the elastic force of the spring (19).

In addition, in the above embodiment, the locking piece (
20) The lower edge is rounded and the lower edge is brought into contact with the upper edge of the stopper (18) provided on the eject lever (4). As shown in , another embodiment is shown in which the lower edge of the locking piece (20) is inclined with a taper α, and the inclined lower edge is formed so as to come into contact with the upper edge of the locking piece (18). There is.

Effects of the Invention Since the present application is constructed as described above, until the cassette holder moves downward from the non-playing state to the playing state, the locking piece provided on the operating member is provided with a locking piece for returning the eject lever. The spring and the elasticity of the reversing spring act on the actuating member, and the above-mentioned elasticity is applied to the actuating member in addition to the spring for forward movement, so that the downward movement of the cassette holder to the play state is performed reliably. At the same time, the floating phenomenon of the cassette holder due to external vibration after the cassette holder is set to the play state is prevented by the lower edge of the locking piece coming into contact with the upper edge of the stopper, and the cassette holder is set to the play state. This has the advantage that the correct holding of the data is carried out.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and FIG. 1 is a general plan view in a non-playing state, FIG. 2 is a side view of the same, FIG. 3 is a general plan view of a playing state, and FIG. 4 is a side view of the same. FIG. 5 is a partially enlarged side view of another embodiment, and FIG. 6 is an enlarged view of the locking piece. In the figure, (1) is the lid frame, (4) is the eject lever, and (5) is the eject lever.
) is the cassette holder, (7) is the guide groove, (8) is the guide piece, (9) is the rotating piece, (12) is the connecting rod, (13)
(14) is a reversing spring, (14) is a holding member, (17) is an operating member, (18) is a stop piece, (20) is a locking piece, (21) is a notched groove, and (22) is a locking pin. Patent applicant Nihon Technical Co., Ltd. Figure 1 Figure 2 Figure 6

Claims (4)

[Claims] (1) A cassette holder that is attached to the instrument frame and moves downward to set the playing state when a cassette is inserted from a non-playing state where the cassette can be inserted and removed, and a rotating mechanism that is pivotally attached to the cassette holder. When the cassette is inserted into the free end of the piece and the cassette holder, it is attached between the guide pieces that are movable back and forth and engage with the free ends of the pieces and move forward when the cassette is inserted into the cassette holder. , a reversing spring that forcibly biases the guide piece in its movement direction, and a reversing spring that prevents the cassette holder from moving downward in a non-playing state, and releases the downward movement blocking when the cassette is fully inserted into the cassette holder. a holding member, an eject lever that is attached to the container frame so as to be able to move back and forth, and whose back and forth movement causes the rotary member to rotate back and forth through a connecting rod, and which is always biased rearward; and the container frame. The eject lever is rotatably attached to the cassette holder and is rotatably biased so as to engage with the cassette holder and constantly bias it in the downward direction, and its forward and rotational state is the same as that of the eject lever. In a cassette type tape player equipped with an operating member that is moved backward by forward movement, the operating member is provided with a locking piece, and the eject lever is provided with a stopper, so that when the eject lever is in a non-playing state, The locking piece is configured such that the urging force acts in the forward rotational direction of the actuating member, and the locking piece contacts the stop piece in the backward rotational direction of the actuating member in the play state. Characteristic cassette type tape player. (2) The cassette holder consists of a front frame that is pivotally connected to the container frame and tilts in the vertical direction, and a rear frame that is attached to the rear edge and horizontally moves in the vertical direction.
The cassette tape player described in Section 1. (3) The locking piece is bent into a key shape on the upper rear extension of the operating member, and the locking piece is provided protruding from the front end of the eject lever (claim 1) Or the cassette tape player described in item 2. (4) The cassette tape player according to claim 3, wherein the lower edge of the locking piece is tapered.