Dynamic magnetic information storage or retrieval – Miscellaneous
Patent
1985-04-05
1988-01-05
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Miscellaneous
G11B 1500
Patent
active
047179830
ABSTRACT:
A plunger operating mechanism in a tape player comprises: a head lock plate linked to a head plate normally biased to its withdrawal position by a stop mode spring; a drive means engaging the head lock plate to pull it in a direction for advance of the head plate; a lock means to lock the head lock plate brought ahead by the drive means to place the head plate at the advance position; stress plates individually linked to two attractive plungers and locked by the plungers when energized so that the engagement between the head lock plate and the drive means is maintained by a least one stress plate locked by the energized plunger; fast-forwarding and rewinding control plates linked to the two stress plates to establish the fast-forwarding or rewinding mode so that one of the control plates is set in the fast-forwarding or rewinding mode when one of the plungers is energized but neither control plate is set in a mode other than the fast-forwarding and rewinding mode in which both plungers are energized; position control means linked to the plungers to limit the advance stroke of the head plate to a fast-forwarding or rewinding position when only one of the plungers is deenergized; and a distance adjusting means provided between the head plate and the drive means to adjust the distance between the head plate and the drive means to place the head plate at the fast-forwarding and rewinding position.
REFERENCES:
patent: 4393426 (1983-07-01), Nakanishi
patent: 4519269 (1985-05-01), Itoh et al.
patent: 4547823 (1985-10-01), Ri et al.
patent: 4568989 (1986-02-01), Ohhara et al.
patent: 4574322 (1986-03-01), Teraguchi et al.
patent: 4581665 (1986-04-01), Ito et al.
patent: 4586103 (1986-04-01), Uehara
patent: 4614987 (1986-09-01), Sukenari et al.
patent: 4656552 (1987-04-01), Takahashi et al.
Ito Yukio
Kinoshita Shigeo
Bussan Matthew J.
Clarion Co., Ltd
Tupper Robert S.
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