Record player

Details Record player Record player

1981-11-16

1984-03-27

Stephan, Steven L.

Dynamic information storage or retrieval

With particular cabinet structure

Slotted for edgewise insertion of storage disc

369 752, 369270, G11B 336, G11B 1900, G11B 1700

Patent

active

044398506

DESCRIPTION:

BRIEF SUMMARY
DESCRIPTION

1. Technical Field
The present invention relates to a record player for playing a record disk on which such high frequency signals as video information or sound signals are recorded.
2. Background of the Art
Disclosed in Patent Gazette with Patent Disclosure Nos. 53-71806 and 54-115103 is a record player on which the loading and unloading of the record disk without direct touching by hand of the record disk is made possible by using a jacket, which houses in a protective case both the record and a holder surrounding the record disk. This protection is sought because the record disk on which the video information is recorded has a signal recording surface of delicate configuration.
Heretofore, in video record players in which record jackets of this type are utilized, the record disk is turned on a turntable having a diameter larger than that of the record disk for avoidance of vertical swing which otherwise occurs when the record disk is turned. Accordingly, when transferring the record disk from a protective case to the turntable, or conversely, when returning the record disk from the turntable to the case, the large diameter turntable interferes with the operations.
Moreover, because the pick-up has access to the disk from above the disc, the record player should necessarily be designed bulky.


Disclosure of the Invention

The present record disk affords a tolerable playing characteristics, with the stabilized turning of the record disk guaranteed, even if it is not carried on a large diameter turntable, and if the pinching force is sufficiently large, even when only the signal-free part at its center is pinched.
The object of this invention is to provide a record player in which the record disk is put on a small diameter turntable of a size equal to the diameter of the signal-free part at the center of the record disk, and the central part of the record disk is pressed onto the turntable surface by means of the record disk clamping mechanism; in that way loading and unloading of the record disk is facilitated.
A further object of this invention is to provide a record player in which dust accumulation on the pick-up is not only prevented, but the apparatus may be designed less bulkily, by permitting the pick up access from below the record disk to the signal-recorded surface of the record disk extending outwardly from the turntable.


BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a partially broken away, plan view of a record jacket;
FIG. 2 provides a sectional view along the line II--II indicated in FIG. 1;
FIG. 3 gives a sectional view along the line III--III of FIG. 1;
FIG. 4 presents a sectional view of the player being in the state of playing;
FIGS. 5 through 8 represent perspective views of the record jacket locking mechanism and unlocking mechanism, showing the conditions at the times of loading and unloading;
FIG. 9 denotes a perspective view of the second locking mechanism;
FIG. 10 designates a plan view of the player body;
FIGS. 11 through 14 display sectional views of this record player, showing the conditions of the cover body, record jacket and the pick-up at the times of loading and unloading;
FIG. 15 exhibits a plan view of a modified embodiment of the record disk clamping mechanism; and
FIG. 16 discloses a sectional view along the line XVI--XVI of FIG. 15.


BEST MODE OF CARRYING OUT THE INVENTION

The record jacket, as shown in FIG. 1, is equipped with an outer case 1 with a record holder 2 removably inserted therein and a locking mechanism 3 for effecting engagement and disengagement of the holder and the case.
The outer case 1 being a flat box opened forwardly, and forming the housing for the record holder 2, permits its insertion into and removal from the holder 2 through its frontal opening in the directions indicated by the arrows A and B.
In the rear wall 12 of the outer case 1, a vent hole 13 is opened, and in both side walls 14, engaging holes 15 are opened and the locking prawl 7, described later, moves in and out of the holes 15.
In the record holder 2, a circula

REFERENCES:
patent: 4098511 (1978-07-01), Leedom
patent: 4109919 (1978-08-01), Elliott et al.
patent: 4191380 (1980-03-01), Allen et al.
patent: 4232870 (1980-11-01), Iemenschot
patent: 4247119 (1981-01-01), Hughes

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