JPS6294441U - - Google Patents

Description

[Brief explanation of the drawing]

1 to 17 show an embodiment of the present invention, in which FIG. 1 is an exploded perspective view showing a cassette loading mechanism of a magnetic recording/reproducing device, FIG. 2 is a side view of the cassette loading mechanism, 3 is an enlarged side view showing the second guide, FIG. 4 is an enlarged side view showing the first guide, FIG. 5 is a side view of the loaded tape cassette, and FIG. 6 is a bottom view thereof. 7 and 8 are explanatory diagrams showing the opening operation of the cover when inserting the tape cassette into the cassette holder,
Figures 9A to 9D are explanatory diagrams showing in order the relative motion between the support point of the cassette holder and the first guide and the second guide, and Figures 10 and 11 are cassette holders corresponding to Figures 9A to D. and a side view of the cassette loading mechanism showing the operation of the tape cassette, and FIGS. 12A to 12D are continuations of FIG. Explanatory diagrams, Figures 13 and 14 are from Figure 12 I.
a side view of the cassette loading mechanism showing the operation of the cassette holder and tape cassette corresponding to D;
Figures 15A-C are partial side views of the cassette loading mechanism showing the operation of the cassette holder and slider corresponding to Figures 9A-D, and Figures 16 and 17 are when the cover is opened when ejecting the tape cassette. FIG. 18 is a side view schematically showing a cassette loading mechanism of a conventional magnetic recording/reproducing apparatus. 1...Tape cassette, 1a...Cassette body, 1
b...Lock pin, 1c...Concave part for extrusion, 2...
Lid, 3... Cover, 3a... Groove, 3b, 3c... Lock hole, 10... Base, 11, 12... Reel stand, 13... Rotating head, 20... Main body chassis, 2
6... Guide plate (guide member that guides the cassette pushing member), 26b... Pressing surface, 30... First guide groove, D... Holding passage that holds the fulcrum, 40... Slider, 46... Cassette pushing member, 47... Plate spring,
50...Second guide groove, C...Passage for raising and lowering the cassette holder, 51, 52...Restricting portion, 60...Cassette holder, 63...Bottom plate, 65...Lock release protrusion, 66...Stopper, 68...Support pin of cassette holder , 70...Lid opening member.

Claims (1)

[Scope of Claim for Utility Model Registration] A tape cassette is held, which is provided with a rotary opening/closing lid at the tip and a sliding opening/closing cover at the bottom that is locked in two places: when closed and when opened. and a cassette holder provided with a lock release protrusion formed along the loading direction of the tape cassette to unlock the cover, and a stopper that comes into contact with the tip of the cover in the loading direction; a slider that is driven linearly from the loading port side toward the inside of the device; a main body chassis in which each of the cassette holder and the slider is movably supported; and a first mechanism that relatively moves the cassette holder and the slider and a second guide for moving the cassette holder relative to the main body chassis. The first guide is provided with a restriction part that only allows movement of the cassette holder and temporarily stops the cassette holder, and the first guide is provided with a restriction part that allows the cassette holder to move in the direction of the cassette insertion slot after the restriction by the restriction part is released. A holding part is provided to move the cassette holder together with the slider at the final stroke of the cassette, and the first guide and the second guide are provided with a holding part to move the cassette holder further into the apparatus than the regulating part. A passage is provided for raising and lowering the holder with respect to a base having a tape reel, etc., and the slider is provided with a cassette pushing member, and the main body chassis is provided with a guide for the cassette pushing member. A guide member is provided to push the cassette ejecting member in the direction of engagement with the tape cassette when the cassette holder is stopped at the regulating portion, thereby pushing the cassette insertion opening of the slider. As the tape cassette cover moves in the direction, the lock at the time of opening of the cover of the tape cassette is released, and the cassette pushing member is prevented from engaging with the tape cassette at the final stroke after the cassette holder is released from the restriction by the restriction part. A cassette loading mechanism for a magnetic recording/reproducing device, which is provided with a pressing surface for release.