JPH01143061A - Cassette mounting device - Google Patents

Abstract

PURPOSE:To make a cassette mounting mechanism at a loading time minimum and to miniaturize a carrying system by dividing a cassette holder into a revolving arm part and a main body part and executing the expansion and contraction of the both parts with the moving operation of a slide chassis. CONSTITUTION:A main body part 20 and a revolving arm part 15 are turned in a counter-clock-wise direction and a cassette 6 is inserted with a cassette inserting port to be upward. Next, when the main body part 20 is pushed down in an arrow B direction, the engaging position of coupling pins 18 and 19 and through channels 16 and 17 are not moved, however, since a coupling pin 21 is passed through the inside of a guide channel 13, the cassette 6 is exactly positioned to a coiling reel 24 and a supplying reel 23. Next, when a slide chassis 11 is moved in a C direction, the engaging position of the guide channel and the coupling pin is not moved and obtained as a prescribed position. Thus, since the revolving arm part 15 and the main body part 20 are expanded and contracted by the moving operation of the slide chassis, the cassette mounting mechanism at the loading time can be made small.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a cassette mounting method for storing a tape-shaped recording medium and mounting a cassette having a concave portion on the drawer side of the stored record in a fixed position. It is related to the device.

[Prior Art] FIG. 6 is a perspective view showing a conventional cassette loading device for a cassette used in a small machine such as a magnetic recording/reproducing device (hereinafter referred to as a VTR), particularly an 8□ VTR, and FIG. 1 is a schematic plan view for explaining a conventional tape cassette and a tape cassette to which the present invention is applied.

In FIG. 6, 1 is an inner holder into which a cassette 6, which will be described later, is inserted, and 2 is an outer holder that rotates the inner holder l and locks and holds the inner holder l. 3a, 3
b is a rotational fulcrum of the inner holder l, and 4a and 4b are rotational fulcrums of the outer holder 2.

Further, 5 is a leaf spring attached to the outer holder 2 and pressing the upper surface of the inner holder l.

The outer holder 2 is rotatably supported by a support plate (not shown) projecting from a fixed chassis (not shown) via pivot points 4a and 4b. The inner holder 1 is inserted into the outer holder 2 so as to be slidable therein, and a support plate (not shown, which is rotatably provided) protrudes from a slide chassis (not shown) which is slidably disposed on the fixed chassis. It is rotatably supported via rotation fulcrums 3a and 3b.

When the slide chassis is drawn toward the opposite side of the tram 7, the pivot points 3a, 3b and 4a, 4b are located on the same axis, and the inner holder l and outer holder 2 rotate integrally. is in a state of Also, when the slide chassis is pushed toward the drum 7 side, the support plates supporting the pivot points 3a and 3b move together, and the inner holder l is moved to the outer holder 2.
Move inside to the tram 7 side.

As shown in FIG. 7, the cassette 6 has a concave portion 8 on the tape draw-out side, and the drum 7 is positioned in the four portions 8 when the rope ink is completed.

When the tape 9 is loaded, the post and capstan 32 (not shown) move toward the drum and pull out the tape 9.
Wrap it around tram 7.

In Fig. 6, when installing the cassette 6 that stores the tape shown in Fig. 7 into the holder, the slide chassis should be pulled out and the inner holder l and outer holder 2 should be rotated so that the cassette insertion slot faces upward. make it move. In this state, insert the cassette 6 into the inner holder l from the tape extraction surface side. Next, after returning the holder to the horizontal position (parallel to the slide chassis W1), move the slide chassis to the drum 7
side, move the inner holder l into the outer holder 2,
The cassette 6 is moved until the tram 7 is positioned as shown in FIG. At this time, the first rotation fulcrums 3a, 3b are 4a, 4
It is located closer to the drum 7 by a distance gIa from b.

As described above, the tram 7 is inserted into the four parts 8 by attaching and detaching the cassette to and from the holder at a position away from the drum 7, mounting the cassette on the cassette mounting part, and then moving it toward the drum. By forming the tape path in the vertical position, it is possible to downsize the entire mechanical section. Therefore, it is suitable for applications such as 8□ VTRs that require small size and light weight.

[Problems to be Solved by the Invention] In the conventional cassette loading device as described above, a cassette holder size that is equal to the sum of the cassette depth length and the cassette movement length (inner holder movement length) is required. However, there is a problem in that the mechanism becomes larger. On the other hand, if the length of the rotating arm is shortened, the size can be reduced, but if the tape is slack when the cassette is installed, the tape may come into contact with the post or drum, causing damage to the tape.

The present invention has been made to solve these problems, and an object of the present invention is to provide a cassette loading device that can reduce the size of the entire mechanism without causing tape damage.

[Means for Solving the Problems] In order to achieve the above object, the present invention loads a cassette containing a tape-shaped recording medium into a holder part, and inserts the cassette from the cassette insertion position until the loading is completed. A cassette mounting device that moves forward and backward to a position includes a main body that holds a cassette inserted from one end, and a plurality of locking members provided on the side surface of the other end of the main body to lock the main body. Equipped with multiple guide grooves that slidably connect parts,
A rotary arm portion rotatably supported at one end by a main chassis or the like, and an arcuate groove for rotatably locking at least one of the locking members around a support point of the rotary arm portion as a rotation center. A slide chassis to which the positioning member is attached and which moves the main body in response to a sliding operation of the positioning member is provided.

[Operation] With the above configuration, the cassette can be transported to the set position by moving the plurality of locking members protruding from the main body or within the plurality of long grooves provided on the rotary arm. Therefore, the main body can be slid stably without making the holder part have a double structure of an inner holder and an outer holder. In addition, a positioning member having an arcuate groove is provided on the slide chassis, and a locking member is fitted into this arcuate groove to allow rotation (elevating and lowering) of the holder portion, so a rotation fulcrum is provided in the main body portion. You can attach and detach the cassette without any trouble.

[Embodiment] Fig. 1 is a side view showing an embodiment of the present invention, Fig. 2 is a side view showing a state in which a cassette is mounted on the cassette mounting device of Fig. 1 and the holder section is closed; The figure is a plan view corresponding to the state shown in FIG. 2.

In FIG. 1, a slide chassis 11 is disposed so as to be slidable in the horizontal direction with respect to the apparatus main body lO, and a pair of positioning plates 12 as positioning members are protruded from the upper surface of the slide chassis 11. This positioning plate 12 has a semicircular guide groove 13 formed therein. The device body 10 has a guide groove 13.
An angle (not shown) is provided at a predetermined distance from the angle, and a pair of rotating arm portions 15 are coupled to this angle with the rotational fulcrum 14 as the center of rotation.

The rotating arm portion 15 has two through grooves 16 in its longitudinal direction.
17 are provided in parallel, and coupling pins 18 and 19 as locking members protruding from the side surface of the main body portion 20 are fitted into each of the through grooves 16 and 17. In addition, the main body 2
A coupling pin 21 as a locking member is protruded from the side surface of o, and this coupling pin 21 is fitted into the guide ti*13 and the through groove 17. The coupling pins 18, 19 and 21 are arranged to form a nearly triangular shape, so that the main body part 20 is engaged with the rotating arm part 15 by three pins on one side, and the main body part 20 is attached to the rotating arm part 15 by three pins on one side, and Even if movement in directions other than the through grooves 16 and 17 is possible, movement in a direction perpendicular to the through grooves 16 and 17 is restricted.

The main body part 20 has a space into which the cassette 6 can be fitted,
A cassette cover 22 is provided on the top. As shown in FIG. 3, the cassette 6 is equipped with a supply reel 23 and a take-up reel 24, and driving force is applied to these reels according to modes such as recording, playback, fast forwarding and rewinding.
Alternatively, a reel unit 25 for applying a predetermined tension is disposed on the top of the slide chassis 11.

Further, a light emitting unit 26 for optically detecting the end of the tape is disposed near the reel unit 25.

Further, as shown in FIG. 3, a recording/reproducing apparatus equipped with a cassette loading device is provided with a drum 7 facing the tape pulling surface of the cassette 6, and a tram for pulling out the tape from the cassette 6 with respect to the drum 7. Posts 27, 28, 29, 30, 31, 32 and pinch rollers 33 are arranged in a horizontal row for winding around the paper. Posts 34, 35, and 36, which either move or do not move as shown in FIG. 5 during loading, are arranged on both sides of the drum 7.

Next, the operation of the above configuration will be explained using FIGS. 1 to 5.

First, as shown in FIG. 1, rotate the main body 20 and the rotary arm 15 in the direction of the half-hour hand so that the cassette insertion opening of the main body 20 faces upward, and insert the cassette 6 into the main body 20 from the direction of the arrow. Insert. Then, push down the main body 20 in the direction of arrow B to bring it into the state shown in FIG. At this time, the engagement position between the coupling pin 18.19 and the through groove 16.17 remains unchanged, but the coupling pin moves into the guide groove 1 as the main body 20 is pressed down.
descend. That is, by passing the coupling pin 21 through the guide yt13, the cassette 6 is accurately placed on the take-up reel 24.
It is positioned relative to the supply reel 23. Since the movement of the coupling pin 21 in the horizontal direction is restricted by the guide groove 13, the coupling position of the main body part 20 and the rotating arm part 15 will not deviate. When in the state shown in Figure 2, the cassette 6
The positional relationship of the drum 7 with respect to the tram 7 is as shown in FIG. 3, and the drum 7 has not entered the fourth part 8 in FIG. 6, and the posts 27-32 and 33 have not moved.

Next, when the slide chassis 11 is moved in the direction C shown in the figure from the state shown in FIG. , 19 move horizontally within the through grooves 16, 17. That is, the main body 20 containing the cassette 6 moves in the direction of the drum 7 at the same speed as the slide chassis 11,
Finally, the state shown in FIG. 4 is reached. At this time, connecting pin 1
8.19 is located at the left end of the through groove 16.17, and the coupling pin 21 is located at the lower end of the guide groove 13.

At this time, a loading mechanism (not shown) operates together with the movement operation of the slide chassis 11-, and the reel unit 25
In addition to moving the two light-emitting units 26 and the posts 27 to 30 while pulling out the tape 9, the post 31 and the posts 35
The final result is as shown in Fig. 5. In this state, the drum 7 bites into the recess 8 of the cassette 6, and the space occupied by the cassette mounting mechanism is smaller than in the conventional configuration.

As is clear from the above, the cassette holder is divided into two parts, the rotating arm part 15 and the main body part 20, in contrast to the conventional single structure, and both can be expanded and contracted by moving the slide chassis. The mounting mechanism can be minimized, making it possible to downsize the transport system.

In the above embodiments, an example of application to a VTR has been exemplified, but the present invention is not limited to this and can be applied to any tape cassette having four parts into which a rotating drum can fit.

[Effects of the Invention] As explained above, the present invention separates the cassette holder section or rotating arm section from the main body section, and allows the degree of coupling between the two to be varied by the slide chassis, so that the fixed length of the rotating section can be shortened. Sh.

It is possible to downsize the cassette mounting mechanism during loading.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a side view showing a state in which a cassette is attached to the cassette mounting device of FIG. 1 and the holder section is closed, and FIG. FIG. 4 is a side view of the embodiment shown when loading is completed; FIG. 5 is a plan view corresponding to FIG. 4; FIG. 6 shows the configuration of a conventional cassette loading device. A perspective view showing,
FIG. 7 is a plan view showing a schematic configuration of the apparatus shown in FIG. 6 and a cassette applied to the embodiment of the present invention. In the figure. 6: Cassette 7: Drum 1O: Device body 12 Ride chassis 12: Positioning plate 13 Guide groove 14: Rotating fulcrum 15: Rotating arm 16. 17: Penetrating groove 18, 19, 21: Coupling pin 20: Main body 27 Go 32: Boss 33: Pinch Roller Agent Patent Attorney 1) Haru Kitatake Figure 1 Figure 5

Claims (1)

[Claims] A main body that holds a cassette inserted from one end in a cassette loading device that loads a cassette containing a tape-shaped recording medium into a holder part and moves the cassette forward and backward from a cassette insertion position to a position where loading is completed. and a plurality of guide grooves that slidably connect the main body by locking a plurality of locking members provided on the side surface of the other end of the main body, and one end is rotatable to the main chassis or the like. a positioning member having an arcuate groove that rotatably locks at least one of the locking members around a support point of the rotary arm portion as a rotation center; A cassette mounting device comprising: a slide chassis that is attached to the chassis and moves the main body portion in response to a slide operation of the slide chassis.