JPS6172747U - - Google Patents

Description

[Brief Description of the Drawings] Fig. 1 is an external view showing a cassette tape recorder to which this invention is applied, Fig. 2 is a plan view showing the forward/reverse switching mechanism of the cassette tape recorder, and Fig. 3 is a plan view showing the forward/reverse switching mechanism of the cassette tape recorder. FIGS. 4 to 9 are timing diagrams for explaining the forward electrical operation of the switching mechanism, and FIG. 10 is a plan view for explaining the forward mechanical operation of the forward/reverse switching mechanism. FIGS. 11 to 15 are timing diagrams for explaining the electrical operation of the forward/reverse switching mechanism in the opposite direction, and FIGS. 11 to 15 are plan views and FIG. Figures 16 and 17 are perspective views showing the pinch roller switching mechanism and the relationship between the pinch lever and the reverse slider, and Figure 18 is a perspective view showing the relationship between the pinch lever and the head chassis of the pinch roller switching mechanism. 19 to 21 are configuration diagrams for explaining the forward switching operation of the pinch roller switching mechanism, and FIGS. 22 to 27 are diagrams showing the reverse switching mechanism of the pinch roller. FIG. 28 is a block diagram for explaining the direction switching operation, and FIG. 28 is a plan view showing the relationship among the head chassis, music selection slider, eject operation member, and lock member, showing an embodiment of the cassette tape recorder device according to the invention. Fig. 29 is a plan view showing the positional relationship of each part when the head chassis is in the tape constant speed running position, Fig. 30 is a plan view showing the head chassis held by the music selection slider, and Figs. 31 and 32 are respectively FIG. 7 is a plan view for explaining the operation of returning the head chassis by operating the eject operation member. 11... Main chassis, 12, 13... Reel stand, 14, 15... Gear, 16... Head, 17... Head support structure, 18... Head chassis, 19, 20
...Pinch roller, 21, 22...Pinch lever, 2
3, 24...Capstan, 25...Sub chassis,
26...Motor, 27...Eject operation member, 28
...Lock member, 29-33...Leaf switch, 3
4... Pressing member, 35... Gear, 36... Cam gear, 3
7... Drive lever, 38... Reverse drive lever, 3
9... Solenoid plunger, 40... Reverse slider, 41... Head drive lever, 42... Lock member, 43... Base plate, 44... Torsion spring, 45... Base plate, 46... Torsion spring,
47... Spring, 48... Song selection slider, 49...
Torsion spring, 50...tape cassette.

Claims (1)

[Scope of utility model registration request] an electro-mechanical converter that is selectively controlled to continuous or intermittent first and second driving states that are different from each other based on requests for constant speed running of the tape in one direction and constant speed running of the tape in the other direction; A cam portion, a first guide portion, a second guide portion having a different path from the first guide portion, and the second guide portion, which are rotationally driven based on requests for the tape running at a constant speed in one direction and the tape running at a constant speed in the other direction. a rotating body having an engaging portion on a path of a guide portion; and a rotating body that is interlocked with the operation of the electro-mechanical converter and rotates when the electro-mechanical converter is controlled to a first and second drive state, respectively. a first driving member whose position is controlled so as to be guided along the first and second guide portions of the rotating body; a second guide portion that is guided by the first and second guide portions of the device and is controlled to a position where it is disengaged and engaged with the engagement portion;
and a drive member which is supported so as to be movable between first and second positions, which make the head compatible with constant speed running of the tape in one direction and the other direction, and which is normally biased to the first position. a third driving member that is moved to a second position in conjunction with the second driving member when the driving member is engaged with the engaging portion of the rotating body and moved; A third position in which the head is brought into contact with the tape and a fourth position in which the head is separated from the tape. a head support member to which a biasing force is applied to return the head to the fourth position at the third position;
a locking member that locks the head support member in a third position; and a locking member that engages the head support member in a state in which the lock member is released so that the head supports the head slightly in contact with the tape. The head support member includes a music selection member held at the music selection position, and an eject operation member that moves the music selection member in a direction to release the head support member from holding the music selection position and performs an eject operation of the cassette lid. The head support member is interposed in the movement path of the music selection member while the member is locked to the locking member, and prevents movement of the music selection member and thereby prevents operation of the eject operation member. A cassette tape recorder device characterized by: