JPS6172748U - - Google Patents

Description

[Brief explanation of 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 same cassette tape recorder, and Fig. 3 is a diagram showing the forward/reverse switching mechanism of the forward/reverse switching mechanism. 4 to 9 are plan views to explain the mechanical operation of the forward/reverse switching mechanism in the forward direction, and FIG. 10 is a timing diagram for explaining the mechanical operation of the forward/reverse switching mechanism. FIGS. 11 to 15 are timing diagrams for explaining the electrical operation in the reverse direction, and FIGS. 16 and 17 are plan views, respectively, for explaining the mechanical operation in the opposite direction of the forward/reverse switching mechanism. 18 is a perspective view showing the pinch roller switching mechanism and the relationship between the pinch lever and the reverse slider, FIG. 18 is a plan view showing the relationship between the pinch lever and the head chassis of the pinch roller switching mechanism, and FIG. Figures 21 to 21 are configuration diagrams for explaining the forward switching operation of the pinch roller switching mechanism, and Figures 22 to 27 illustrate the reverse switching operation of the pinch roller switching mechanism, respectively. FIG. 28 shows an embodiment of the tape recorder device according to the invention, and is a plan view showing the relationship among the headshaft, music selection slider, eject operation member, and locking member. Fig. 30 is a plan view showing the positional relationship of each part when the vehicle is in the constant speed running position; Fig. 30 is a plan view showing the head chassis held by the music selection slider;
32 are plan views for explaining the operation of returning the head chassis by operating the eject operation member, respectively. 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 where the head is in contact with the tape and a fourth position where the head is separated from the tape. The head is supported so as to be movable between the two positions and is moved from the fourth position to the third position by the action of the cam portion of the rotating body. At the third position, a biasing force is applied to return the third drive member to the fourth position, and the third drive member, which has been moved to the second position while in the third position, is returned to the second position. a head support member capable of being held in the third position; a lock member for locking the head support member in the third position; A music selection member that holds the head in a music selection position where the head slightly contacts the tape, and an ejector that moves the music selection member in a direction that releases the head support member from holding the music selection position and performs an ejecting operation of the cassette lid. an operating member, one end of which is locked to the ejecting operating member and the other end of the ejecting operating member is locked to the head supporting member to apply a biasing force to return the ejecting operating member to the fourth position; A tape recorder device comprising a spring whose biasing force is increased in conjunction with operation.