JPH03224163A - Cassette tape loading/ejecting device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for automatically loading or unloading a cassette tape.

[Conventional technology]

A conventional video tape recorder (hereinafter referred to as a VTR) is placed separately from the television, such as on top of the television receiver or in a television storage box.

The cassette was loaded by inserting the cassette tape from the top side of the VTR, which was the so-called top loading method.

[Problem to be solved by the invention]

The above-mentioned conventional technology has a drawback that, if the above-mentioned cassette tape mounting mechanism is directly adopted in, for example, an integrated device of a television receiver and a VTR, the size of the device becomes significantly large.

An object of the present invention is to eliminate the drawbacks of the prior art described above, reduce the operation area of the VTR by inserting the cassette tape from the front of the VTR, and thereby reduce the overall size of the VTR. A front-loading type cassette tape loading/unloading device, wherein a cassette box that holds a cassette tape inserted from a cassette tape insertion slot provided on the front side of a VTR is placed at a first position where a cassette tape can be inserted and removed; VTR
Between the internal loading position (loading completion position) and the second position where the cassette tape is loaded, the cassette tape is moved from the first position to the second position (loading operation) and from the second position to the first position (ejecting operation). An object of the present invention is to provide a compact cassette loading/unloading device which is compact and has excellent operability by moving the cassette to the first position (operation) by moving a motor.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a cassette tape insertion slot provided on the front panel of a VTR, and a cassette that holds a cassette tape inserted from the cassette tape insertion slot. a box, a first position where a cassette tape can be inserted into and removed from the cassette tape insertion slot;
a guide mechanism that guides the cassette box from a first position to a second position and from the second position to the first position between a mounting position inside the TR and a second position where the cassette tape is mounted; , a power transmission mechanism for reciprocating the cassette box using the guide mechanism as a guide, and a motor capable of forward and reverse rotation for driving the power transmission mechanism, and moving the cassette box from a first position to a second position. When moving while changing the direction from the horizontal direction to the vertical direction, the motor is rotated in the normal direction, and the cassette box is moved to the second position.
When moving from the position to the first position while changing direction from the vertical direction to the horizontal direction, the motor is reversed, and the movement of the cassette box is guided by the power transmission mechanism and the guide mechanism, respectively. shall be. As a result, it is possible to achieve a cassette tape mounting and discharging device that is small and has excellent operability.

[For production]

The operation based on the above configuration will be explained.

The cassette box that holds the cassette tape inserted from the cassette tape insertion slot provided on the front of the VTR has two positions: a first position where the cassette tape can be inserted and removed from the cassette tape insertion slot, and a mounting position inside the VTR (when installation is complete). position) and the second position where the cassette tape is installed.
A single reversible motor and guide mechanism allows movement from the first position to the second position (loading operation) and from the second position to the first position (ejecting operation) (from horizontal to vertical during loading).
When discharging, it moves while being guided along a predetermined path (while changing direction from vertical to horizontal). By simply rotating the motor in the normal direction when loading and rotating the motor in the reverse direction when ejecting, the cassette box holding the cassette tape can be automatically loaded into a predetermined loading position or ejected by the rotational force of the motor.

In this way, the same guide mechanism is used for both the outward path (installation operation) and the return path (ejection operation), and a single motor capable of forward and backward rotation moves the insertion and ejection operations from the insertion/extraction position (first position) to the installation position (first position). 2), the movement guide mechanism is simple, and a compact cassette tape loading/unloading device with excellent operability can be obtained.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

1 to 3 are a right side view, a top view, and a left side view showing one embodiment of the present invention.

First, the overall configuration will be explained.

The overall framework is formed into a π shape by the top plate 20 (Figure 2), the right side plate 13 (Figures 2 and 1), and the left side plate 14 (Figures 2 and 3). It is fixed with a stopper. A motor holding plate 3 to which a motor 1 (FIGS. 1 and 2) is fixed is fixed to a right side plate 13. A worm 5 (FIG. 1) is also rotatably held by the motor holding plate 3. Power from the motor 1 is transmitted from a motor pulley 2 press-fitted to the shaft of the motor 1 via a belt 4 to a worm boo 'J5a press-fitted to the shaft of the worm 5. A connecting shaft 10 (Fig. 2) is rotatably held through the right side plate 13 and the left side plate 14, and a spur gear (small) 8.8' is connected to the shaft 1 on both sides of the shaft 10.
It is fixed so that it rotates together with 0.

A transmission plate 7 to which a shaft 7a (FIGS. 2 and 7) is attached is fixed to the right side of the shaft 10 so as to rotate together with the shaft 10, and a worm wheel 6 is fixed to the right side of the shaft 10. , are rotatably attached to the shaft 10. This worm wheel 6 has a protrusion 6a and a groove 6b (Fig. 1,
(Fig. 7) is provided, and this protrusion 6a and a transmission plate 7
A spring 9 is tensioned between the tightening shaft 7a and the shaft 7, which urges a cassette box 18 (FIG. 3), which will be described later, in the direction of discharging the cassette tape 42.
a is locked to the end of the groove 6b.

The spur gear (left) 11 (FIG. 2) is rotatably attached to the left side plate 14, and the spur gear (right) 12 is rotatably attached to the right side plate 13. Also, spur gear (left) 11 and spur gear (right) 12 mesh with spur gear (small) 8'8, respectively.
Power from the motor 1 is transmitted.

The spur gear (left) 11 has a pin 11a (FIG. 3) implanted therein, and is provided with an elongated shaft 11b. [Spur gear (right)
12 (FIGS. 2 and 1) are also provided with similar pins and elongated holes, although not shown.] Left side side plate 14 (
2 and 3), there are guide holes 14a, 1 in the shape of approximately
4b (Fig. 3, Fig. 5, Fig. 6), and a pin 1 that fits and slides into the guide holes 14a, 14b is provided.
The cassette box 18 in which 8a and 18b are installed is placed on the left side plate 14 and the right side plate 13 (Fig. 2).
It is designed to slide between the

[Although not shown on the right side plate 13, a similar abbreviation "
The cassette box 18 is provided with a shaped guide hole and a pin that slides into the guide hole. Pin 18a planted in cassette box 18 (Fig. 3)
A link B17 is rotatably attached to the
A link A16 is rotatably attached to a pin 17a implanted in A17.
is installed, and the pin 17a is inserted into the hole 1 of the left side plate 14.
The pin 16a, which was inserted into the link A16 and inserted into the hole 11b of the spur gear (left) 11, was inserted into the pin 16a and the spur gear (left) 11. A spring 15 is installed between the pin lla and the pin lla. [The spur gear (right) 12 (FIGS. 2 and 1) is similarly configured].

The top plate 20 (Fig. 2) has a side auxiliary plate 19 on the right side.
(Figures 2 and 3) are fixed. A switch A mounting plate 21 (FIG. 3) is fixed to this side auxiliary plate 19, a switch A23 is defined on the switch A mounting plate 21, and a switch A operating plate 22 is installed on the switch A mounting plate 21. It is rotatably attached around a provided pin 21a as a center of rotation. Further, a switch B mounting plate 25 is fixed to the side auxiliary plate 19, a switch B27 is fixed to the switch B mounting plate 25, and a switch B operating plate 2 is fixed to the switch B mounting plate 25.
6 is rotatably mounted around a pin 25a implanted in the switch B mounting plate 25. Furthermore, pins 19a and 19b are implanted in the side auxiliary plate 19, and each pin 19a.

Swing lever 28.19b is the center of rotation. The open lever 29 is rotatably attached, and a pin 29a implanted in the open lever 29 and a hole 28a provided in the swing lever 28 fit together, so that the open lever 29 and the swing lever 28 are interlocked. It is supposed to be done. A spring 24 is stretched between the cut and raised portions of the switch A operating plate 22 and the switch A mounting plate 21, and a spring 30 is stretched between the cut and raised portions of the switch B operating plate 26 and the switch B mounting plate 25. and switches A23 . A biasing force is applied to turn on the switch B27.

Also, the cut and raised portion 19c of the side auxiliary plate 19 and the swing lever 28
A spring 34 is stretched between the two.

A shaft 31 is attached between the bent portions (FIGS. 1 and 3) provided on both sides of the front surface of the top plate 20 (FIG. 2),
A cassette door 32 (first
) is attached to this cassette door 32, and a pin 32
a is implanted so that the pin 32a and the end surface of the open lever 29 come into contact with each other. Furthermore, top plate 20
A switch C mounting plate 35 is fixed at the center of (FIG. 2). As shown in FIG. 4, a switch operating piece 36 is rotatably attached to the switch mounting plate 35 by a pin 35a, and a switch C38 is fixed to the switch mounting plate 35. A spring 37 is stretched between the switch operating piece 36 and the switch C38 in a direction that turns on the switch C38. A front panel 41 having a cassette tape insertion slot 41a is provided in front of the cassette door 32 (FIG. 3).

Next, the operation will be explained. In the loading operation, the cassette tape 42 is inserted into the cassette box 18 from the front to the rear of the cassette tape insertion slot 41a of the front panel 41 of the VTR (FIG. 3, position a), and the cassette tape 42 is further pushed. When the cassette box 18 is inserted, the cassette box 18 is pushed backward and the link B17. Spur gear (left) connected through link A16 11. Similarly configured spur gear (right) 12 (Fig. 1), spur gear (
The transmission plate 7 (small) 8 is rotated in the direction A in FIGS. 1 and 7, and the transmission plate 7 (see FIG.

7) is also rotated in the direction A, and as the shirt 7a rotates, the spring 9 (FIG. 1), which biases the cassette tape in the ejecting direction, further moves along the longitudinal direction of the groove 6b of the worm wheel 6. Stretched. As a result, the switch C38 (
(Fig. 4) is operated.

This switch C38 is a starting switch that turns from on to off to rotate the motor 1 (FIGS. 1 and 2) in the A direction. As a result, the spring 9 returns (shrinks) to the state before the cassette tape was inserted, the shirt h7a is locked to the upper end of the groove 6b (Fig. 7), and the spur gear (small) 8. Spur gear (right)
12 rotates in the A direction in Figure 1, and the spur gear (small) in Figure 2
8. The spur gear (left) 11 also rotates in the same direction as the shaft 10 rotates, and the third link A16. Via link B17,
The cassette box 18 moves rearward and then downward along guide holes 14a, 14b (FIGS. 3 and 5) in the side plates 13.14. The installation of the cassette tape 42 is completed in the state shown by the two-dot chain line 42b in FIG.
At this point, the switch A23 (Fig. 1) is not yet activated, and the spur gears (right) and (left) 12.11 continue to rotate in the A direction, that is, the spring 15 (Fig. 3) is in a stretched state. , when the spring 15 stretches a certain amount, switch A23 (Fig. 1) switches the spur gear (right).
The bent portion 22a is pushed by the bottle 12C installed in the pin 12, and the switch A operating plate 22 is rotated in the A direction, the switch A23 is turned from on to off, and the rotation of the motor 1 in the A direction is stopped. At this time, the spring 15 remains stretched and the cassette box 18 stops at the position 18' (FIG. 5). As a result, the cassette box 18 is pressed downward by the spring 15 (FIG. 3) to keep the tape running stably.

In the ejection operation, there is an eject switch (not shown in this figure), and by operating it, the motor 1
rotates in the direction B in Fig. 2, and the worm wheel 6 rotates in the first
By rotating the shaft 7a of the transmission plate 7 in the same direction by the spring 9, the shaft 7a of the transmission plate 7 passes through the spur gear (small) 88' and the spur gear (right) 12. Transmits rotation to spur gear (left) 11. This causes the cassette box 18 (FIG. 3) to move from below to above and then to the front. Switch B27 is a discharge completion switch, and when the cassette tape reaches the position indicated by the two-dot chain line 42a in FIG. bending part 26
When a is pressed, switch B operating plate 26 rotates in direction B,
The switch 27 is turned from on to off, the motor 1 stops rotating in the B direction, and the cassette tape 42 is moved to the second position 42b.
The ejection operation from to the first position 42a is completed.

In the present embodiment, a hole 14a as shown in FIG.
A guide 43 is arranged as shown in FIG. Next, the role of this guide 43 will be described. This guide 4
3, pins 18c are installed on both left and right sides of the cassette box 18. Although not shown in FIGS. 1 to 3, a guide 43 having a groove 43a that engages with the bin 18c is screwed to the left and right side plates 14.degree. 13. In FIG. 5, the state of the cassette box indicated by the broken line 18 indicates the state in which the cassette tape has been completely ejected;
The state indicated by '' indicates that the cassette tape has been completely loaded, and in these two states, the bin 18c and the guide 43 are not engaged with each other and are unrelated. Figure 6 shows the cassette box 18
shows the state at the corner portions of the guide holes 14a and 14b where the movement changes from horizontal movement to vertical movement or vice versa. In this state, consider the case where the cassette box kite 43 and the cassette box pin 18c are not present and the cassette box 18 is raised. In that case, the cassette box 18 is driven by the bin 18a, but
At that time, the attitude of the cassette box 18 in the direction of the arrow was not controlled (,).
It is unstable as it rotates.

On the other hand, in this embodiment, since the bottle 18c is inserted into the guide groove 43a of the guide 43, the bottle 18c is inserted into the guide groove 43a of the guide 43.
When a is the fulcrum, the cassette box 18 is the bin 18c
The position of the cassette box 18 is held constant by the play of the groove width of the guide groove 43a.

As is clear from the above embodiments, the present invention provides a cassette box (18) that holds a cassette tape (42) inserted from a cassette tape insertion slot (41a) provided on the front surface of a VTR. (41a) between the first position where the cassette tape (42) can be inserted and removed and the second position where the cassette tape (42) is installed at the installation position (installation completion position) inside the VTR. When moving from the position to the second position (installation operation) and from the second position to the first position (ejection operation), the rotational force of the motor 1, which can be rotated forward and backward, is transferred to the power transmission mechanism (5, 6, 7, 8°8
', 10.11.12) (and if necessary, part 1 of the guide mechanism that guides the cassette box 18
6, 17) to the cassette box (18) and during its movement, the guide mechanism (14a).

14b, 16.17a, 18a, 18b
), the cassette box (18) is guided along a predetermined path from the horizontal direction to the vertical direction when loading and from the vertical direction to the horizontal direction when ejecting, and the cassette box (18) is guided from the first position to the second position. When moving to the position, rotate the motor (1) in the normal direction and move the cassette box (1)
8) from the second position to the first position, the motor (1) is reversely rotated to move the cassette box 18.

〔Effect of the invention〕

As described in detail above, according to the present invention, since the cassette tape is inserted through the cassette tape insertion slot provided on the front surface of the VTR, there is an advantage that the area of the operation surface can be smaller than that of conventional VTRs.

The present invention also provides a cassette holder that holds a cassette tape inserted from a cassette tape insertion slot provided on the front surface of a VTR, and a first position where a cassette tape can be inserted into and removed from the cassette tape insertion slot and a position inside the VTR. between the mounting position and the second position where the cassette tape is mounted.
Since the entire movement from the position to the second position (installation operation) and from the second position to the first position (ejection operation) is performed by switching a single motor that can be rotated forward and backward,
A cassette tape loading/unloading device with excellent operability is obtained. In addition, loading or unloading can be done by simply switching the rotation direction of the motor using the same mechanism, including the guide mechanism of the cassette box. V
We can provide TR.

[Brief explanation of drawings]

1 to 3 show an embodiment of the cassette tape loading/unloading device according to the present invention, and FIG. 1 is a right side view, and FIG.
The figure is a plan view, and FIG. 3 is a left side view. Figure 4 is an enlarged perspective view showing the outline of the starting switch installation part attached to the center of Figure 2, Figure 5 shows the completed ejection of the cassette box,
FIG. 6 is a schematic side view showing a state in which the cassette box is completely installed, FIG. 6 is a schematic side view showing a state in which the cassette box is switched between horizontal and vertical movement, and FIG. 7 is an exploded perspective view of some parts of FIG. DESCRIPTION OF SYMBOLS 1...Motor, 5...Worm, 6...Worm wheel, 6a...Protrusion, 6b...Groove, 7...Transmission plate, 7a...Shaft, 8.8'...・Spur gear (small), 9...Spring, 10...Connection shaft, 11.1
2... Spur gear, (5,6゜7, 8.8', 1
0.11.12...power transmission mechanism), 13, 14.
・・Side plate, 14a, 14b ・"Guide hole,
16°17...Link, 18.18'...Cassette box, 18a. 18b - Bin, (14a, 14b, 1
6.17.17a, 18a. 18b...guide mechanism), 38...switch, 41
...Front panel, 41a...Cassette tape insertion slot, 42...Cassette tape.

Claims (1)

[Claims] 1. A cassette tape insertion slot provided on the front panel of the front of the VTR, a cassette box that holds the cassette tape inserted from the cassette tape insertion slot, and a first cassette tape that can be inserted into and removed from the cassette tape insertion slot. guiding the cassette box from the first position to the second position and from the second position to the first position between the position and the second position where the cassette tape is installed in the installation position inside the VTR. A guide mechanism, a power transmission mechanism that causes the cassette box to reciprocate using the guide mechanism as a guide, and a motor capable of forward and reverse rotation that drives the power transmission mechanism, and move the cassette box from a first position to a second position. When moving the cassette box from the second position to the first position while changing the direction from the horizontal direction to the vertical direction, the motor is rotated in the normal direction, and when moving the cassette box from the second position to the first position while changing the direction from the vertical direction to the horizontal direction, the motor is rotated in the normal direction. A cassette tape mounting/discharging device characterized in that the motor is rotated in reverse, and the cassette box is moved and guided by the power transmission mechanism and the guide mechanism, respectively.