JPH0356899Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field> The present invention relates to a cassette loading device for loading or unloading a cassette of a VTR or the like into a predetermined position of a device.

<Prior Art> Conventionally, there has been a cassette loading device in which a holder cover 1 is integrally attached to a cassette holder 2, as shown in FIGS. However, as is clear from Fig. 4, in order to easily remove the cassette, it is necessary to increase the amount of rise of the cassette holder 2, and in order to reach the upper part of the cassette, the holder cover 1 and the cassette must be removed. Since it is necessary to provide a sufficient gap between Furthermore, it is necessary to provide a space at the bottom of the cassette to allow one's hand to enter into the device, which can become an indirect cause of device failure.

<Purpose> The object of the present invention is to provide a cassette loading device that facilitates the removal of cassettes, allows miniaturization of equipment, and prevents equipment failure.

<Embodiment> Hereinafter, an embodiment of the present invention will be described based on FIGS. 1 and 2. The cassette loading device according to the present invention includes a cassette holder 3 that moves up and down between a cassette unloading position and a loading position, An elevating mechanism C including a pin slot mechanism P for elevating and lowering the cassette holder 3, a cassette holding slider 2 slidably held on the cassette holder 3, and a slider 2 that is slidable on the cassette holder 3 above the slider 2. a holder cover 1 held by the cassette holder 3; and a pinion 4 rotatably supported by the cassette holder 3.
a pair of racks 7a and 7b provided on the holder cover 1 and the slider 2 and meshing with the pinion 4; a slide pin 5a fixed to the holder cover 1; and a fixing pin 3a fixed to the cassette holder 3. A biasing means such as a spring 8 is provided for tensioning the holder cover 1 and biasing the holder cover 1 in a direction opposite to the direction in which the cassette is taken out.

The cassette holder 3 consists of a pair of left and right side plates, and is formed into a horizontally long rectangle. A small rectangular holder cover front end intervention notch 3b is formed at the upper end of the front part of the cassette holder 3. It is fixed in position downward.
Further, a pair of front and rear elongated holes 6a, 6b are formed in the upper part of the cassette holder 3, in which a pair of front and rear slide pins 5a, 5b fixed to the side plate 1a of the holder cover 1 are fitted and slidably guided; A pair of front and rear elongated holes 6c, 6d are formed in the lower part, into which a pair of front and rear slide pins 5c, 5d fixed to the slider 2 are fitted and slidably guided. Further, the holder cover 1 of the cassette holder 3
A fixing pin 3a that supports one of the springs 8 as the biasing means is located approximately in the middle between the guide slots 6a and 6b.
is fixed thereto, and a pinion shaft 4a for rotatably supporting the pinion 4 is attached approximately at the center of the cassette holder 3. Said slider 2
are located inside the cassette holder 3 and support the bottom surface of the cassette;
It consists of a pair of side plates 2a formed vertically upward from both left and right ends of the support plate 2b, and a stopper 2c such as a pawl formed at the rear end of the support plate 2b for receiving and holding an inserted cassette. The rack 7b is arranged on the lower surface of the recess formed at the upper end, and the rack 7b is fixed in mesh with the lower part of the pinion 4. Further, the slide pins 5c and 5d are fixed to the side plate 2a of the slider 2 at front and back positions sandwiching the rack 7b. The holder cover 1 includes a top plate 1b that covers the open top surface of the slider 2, a pair of side plates 1a that protrude vertically downward from slightly inside the left and right ends of the top plate 1b, and a front end of the top plate 1b. It is composed of a vertical plate 1c that projects vertically downward. The side plate 1a of the holder cover 1 is disposed inside the cassette holder 3, and a rack 7a that engages with the upper part of the pinion 4 is formed on the lower surface of its protrusion. The elevating mechanism C is composed of a pair of links 9 and 10 that intersect in an X-shape and are provided with the pin slot mechanism P, and a driving means such as a spring or a motor (not shown) for elevating the links.

A pair of X-shaped links 9 and 10 have a support shaft 11 at the intermediate portion where they intersect, and are mutually rotatable by the support shaft 11, and the upper ends of the links 9 and 10 are provided in the cassette holder 3. The lower ends of the links 9 and 10 are supported by a third link shaft 9b and a fourth link shaft 10 provided on a support base 12.
It is pivotally supported by b. A long hole 9c for slidingly guiding the first link shaft 9a is formed at the front end of the lower surface of the cassette holder 3, and a long hole 9c for slidingly guiding the fourth link shaft 10b is formed at the front end of the support base 12. 10c is formed, the first link shaft 9a, the fourth link shaft 10b, and both elongated holes 9.
c and 10c constitute the pin slot mechanism P. In the figure, 14 is the front panel, and 15 is the top plate of the deck body.

In the above configuration, when removing the cassette,
A pair of links 9 and 10 are operated by a drive means (not shown) to raise the cassette holder 3 to the cassette removal position shown in FIG. Next, when the holder cover 1 is pushed in the rear direction X1 shown in FIG. 2 from the state shown in FIG. 1, the slide pins 5a and 5b slide through the long holes 6a and 6b in the same direction The formed rack 7a is the pinion 4
Rotate in the X2 direction. As the pinion 4 rotates, the rack 7b formed on the slider 2 is driven in the cassette projecting direction X3, and the slide pin 5c,
5d slides through the elongated holes 6c and 6d in the same direction X3, and the cassette 13 protrudes from the device together with the slider 2, making it easy to take out the cassette 13.
After removing the cassette 13, when the pressing force on the holder cover 1 is released, the cassette holder 3
The holder cover 1 is automatically moved to its original position by the spring 8 stretched between the upper fixing pin 3a and the slide pin 5a on the holder cover 1, and the slider 2 is also stored in the device, as shown in FIG. Return to the original position shown in .

In this way, the cassette 13 protrudes from the device by pushing the holder cover 1, making it easy to take out.Since the gap between the cassette 13 and the holder cover 1 can be reduced, the device can be made smaller, and the cassette can be removed easily. Since there is no need to provide a gap between the cassette holder 13 and the front panel 14 in which a hand can be inserted, the lifting stroke of the cassette holder 3 can be reduced, and one of the indirect causes of equipment failure can be prevented.

<Effects> As is clear from the above description, the present invention comprises: a cassette holder that moves up and down between a cassette unloading position and a loading position; a cassette holding slider slidably held by the cassette holder;
A holder cover slidably held by the cassette holder above the slider, a pinion rotatably supported by the cassette holder, and a pair of pinions provided on the holder cover and the slider and meshing with the pinion. The present invention relates to a cassette loading device characterized by being provided with a rack.

Therefore, according to the present invention, the cassette can be easily taken out, and the gap between the holder cover and the cassette can be reduced, making it possible to downsize the device. This has the excellent effect of preventing indirect causes of equipment failure because there is no need to provide a

[Brief explanation of the drawing]

Fig. 1 is a side sectional view showing the cassette ejecting position of a loading device which is an embodiment of the present invention, Fig. 2 is a side sectional view showing the cassette protruding state, and Fig. 3 is the cassette loading position of a conventional loading device. FIG. 4 is a side sectional view showing the extraction position. C... Lifting mechanism, P... Pin slot mechanism, 1
...Holder cover, 2...Slider, 3...
Cassette holder, 4...Pinion, 5a to 5d
...Slide pin, 6a-6d...Long hole, 7a,
7b...Rack, 8...Spring, 9,10...Link.

Claims (1)

[Scope of utility model registration request] a cassette holder that moves up and down between a cassette unloading position and a loading position; a cassette holding slider that is slidably held on the cassette holder; and a cassette holding slider that is slidably held on the cassette holder above the slider. A cassette loading device comprising a holder cover, a pinion rotatably supported by the cassette holder, and a pair of racks provided on the holder cover and the slider and meshing with the pinion.