JPS5865664U - Idler lifting device for cassette tape recorder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

Fig. 1 is a plan view of an embodiment of the idler elevating device for a cassette tape recorder of this invention in a stopped state, and Fig. 2 shows the idler elevating mechanism with some parts unfolded to make the drawing easier to understand. The side views shown in Figures 3a and 3b are the top and bottom views of the idler lift cam assembly, Figures 4a and 4b.
b is a top view and a side view of the rotary cam constituting the idler elevating cam assembly, FIGS. 7 is a plan view of the embodiment of this invention in a regenerated state, FIG. 8 is a plan view of this embodiment with only the second solenoid energized, and FIG. 9 is a top view and side view of the device. It is a top view of this embodiment in a cue state. 1... Take-up reel disk, 2...
Supply - Rudis 7, 3 - Reel motor, 5
....Idler, 7..Mechanism base, 8..Slide base, 9..Record/playback head, 10..Erase head. , 11...
... Return spring, 12 ... Pinch roller, 14 ... Idler lifting cam assembly, 1-5
...Regeneration lever, 19...First sliding plate, 21...First solenoid, 23...
・Tatsukuru lever, 25...Second sliding plate, 26
...Second solenoid, 28...First
Locking arm, 29...Second locking arm, 3
4...Idler arm, 35...Idler lifting arm, 37...Idler lifting shaft, 3
8... Compression spring, 40... Rotating cam, 41... Rotating piece, 42... Intermediary piece, 45... Take Up disk, 46...
...Takeupfelt, 47...Cassette tape.

Claims (1)

[Scope of Claim for Utility Model Registration] A self-returning slide base on which a recording/playback head, etc. is placed and can move forward and backward, a first solenoid for moving the slide base to the playback position, and a first solenoid for moving the slide base to the playback position. A self-returning first locking member and a second locking member disposed on the ride base, and a second locking member that moves a locking pin that locks the first or second locking member to a locked position. During playback, the first solenoid is energized to move the slide base to the playback position, and then the second solenoid is energized to move the slide base to the playback position via the first locking member. hold the second button when cuing up.
A cassette tape recorder in which the first solenoid is energized to move the lock pin, and then the first solenoid is energized to hold the slide base at a position retracted from the playback position via the second locking member. an idler that selectively rotates a take-up reel disk or a supply reel disk by the same reel motor; an idler lifting arm that holds the idler so that it can be raised and lowered by an idler lifting shaft and is biased by a spring in one direction;
A rotating cam that moves the idler lifting arm up and down by the idler lifting shaft, a rotating piece that is coaxial with the rotating cam and rotates by the energization of the first solenoid, and A slidable intermediary piece that performs a clutch action is provided between the pieces, and when the first solenoid is energized during playback and the slide base is moved to the playback position, the rotating cam is moved through the intermediary piece. The idler is rotated integrally with the rotating piece to displace the idler to a position where the reel disc rotates at a constant speed against the force of the spring, and when starting, the second solenoid is energized and the slide base is moved back a little. When the reel disc is held in this position, the intermediate piece is slid to break the engagement between the rotating piece and the rotating cam, and the idler is returned to a position where the reel disc is rotated at high speed by spring bias. An idler lifting device for a cassette tape recorder.