JPH03224161A - Cassette tape loading/ejecting device - Google Patents

Abstract

PURPOSE:To stably move a cassette box by providing a power transmission mechanism which separates the rotating force of a motor, which can be rotated forward and reverse, to the right and the left by a coupling shaft, and drives the cassette box from both of right and left side parts by transmission members provided in the right and the left. CONSTITUTION:Right and left side plates 14 and 13 are provided which have guide holes to guide a cassette box, which holds a cassette tape 42 inserted from a cassette tape insertion hole 41a provided in the front of a VTR, along a prescribed path, and right and left guide members 16, 17, 17a, 18a, and 18b are provided which are engaged with side plates 13 and 14 to guide the movement of the cassette box 18. The rotating force of a motor 1 which can be rotated forward and reverse is separated to the right and the left by a coupling shaft 10, and the cassette box 18 is always driven and guided at the same timing and in the well-balanced state between right and left side parts by transmission members 8, 8, 11, and 12 provided in the right and the left of the coupling shaft 10. Thus, the cassette box 18 is stably moved.

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 installed separately from a television set, such as on top of a 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 television receiver and VTR device, 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, to reduce the operation area of the VTR by inserting the cassette tape from the entire surface of the VTR, and to reduce the overall size of the VTR. This is a front-loading type cassette tape loading/unloading device, which moves a cassette box that holds a cassette tape inserted from a cassette tape insertion slot provided at the front of a VTR from a cassette tape insertion position to a predetermined loading position inside the VTR. Another object of the present invention is to provide a cassette tape mounting/discharging device that stably drives a moving cassette box while holding a wide cassette tape when reciprocating from the mounting position to the discharging position.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a cassette box that holds a cassette tape inserted from a cassette tape insertion slot provided on the front surface of a VTR, and a cassette box that is arranged on both sides of the cassette box and that guides the cassette box in a predetermined path. left and right side plates having guide holes for guiding the cassette box along the left and right side plates, left and right guide members that engage with the guide holes of the left and right side plates and guide the cassette box during movement, a motor capable of forward and reverse rotation, and the motor and a power transmission mechanism that transmits the rotational force of the motor to the cassette box using the left and right guide members as a guide, and the power transmission mechanism includes a power transmission mechanism that transmits the rotational force of the motor to the cassette box by using the left and right guide members as a guide. It has a connecting shaft provided between side plates, and left and right transmission members attached to the left and right sides of the connecting shaft to transmit the rotational force of the motor to the cassette box from the left and right, and transmitting the rotational force of the motor to the connecting shaft. The cassette box is moved by transmitting the signal to the left and right transmission members at the same time through the cassette box, and driving the left and right transmission members at the same timing (i.e., in a well-balanced manner), thereby stably moving the cassette box. It is something that makes you

[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 on the front of the VTR is
It is guided from both the left and right sides by the left and right guide members that engage with guide holes formed in the left and right side plates arranged on both sides of the cassette box, and is driven from both the left and right sides by the left and right transmission members. ing.

However, there is only one motor, which is the drive source for operating the guide member and transmission member that guides the cassette box while it is moving, and the power transmission that transmits the rotational force of the motor to the cassette box via the left and right transmission members. In the mechanism, it is necessary to always drive the left and right transmission members at the same timing. Therefore, in the present invention, in the middle of the power transmission mechanism,
Equipped with a connecting shaft provided on the left and right side plates, on the left and right of the connecting shaft,
By providing a member that transmits the rotational force of the motor, even when moving a cassette box that holds a wide cassette tape, the cassette box can be driven and guided at the same timing by the left and right transmission members. , the cassette box can be moved stably.

In a preferred embodiment of the present invention, the left and right guide members each include a pair of coupling members, and are interposed between the left and right transmission members and both left and right side surfaces of the cassette box to control the rotation of the motor. The force is transmitted from the left and right transmission members to both left and right side surfaces of the cassette box via these guide members.

〔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.

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 onto the shaft of the motor 1 via a belt 4 to a pulley 5a press-fitted onto the shaft of the worm 5. A connecting shaft 10 (Fig. 2) is rotatably held through the space between the right side plate 3 and the left side 1'' plate 14, and spur gears (small) 8.8' are mounted on both sides of the shaft 10. is axis 1
It is fixed so that it rotates together with 0.

On the right side of the shaft 10, a transmission plate 7 on which a shirt 7a (FIGS. 2 and 7) is fixed is fixed so as to rotate together with the shaft 10, and on the right side of the shaft 10, a worm wheel 6 is fixed. is 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 neck shaft 7a and the shirt 7, which biases a cassette box 18 (see FIG. 3), which will be described later, in the ejection direction of the cassette tee 142.
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. Further, the spur gear (left) 11 and the spur gear (right) 12 mesh with the spur gear (small) 8'8, respectively, and power from the motor 1 is transmitted thereto.

The spur gear (left) 11 has a pin 11a (Fig. 3) planted therein, and is provided with a long shaft 11b. [Although not shown, the spur gear (right) 12 (Figs. 2 and 1) is also provided with a similar pin and elongated size]. left side plate 1
4 (Figures 2 and 3) has a guide hole 1.4a in the shape of approximately
, 14b (Figs. 3, 5, and 6), and a cassette box 18 in which bottles 18a, 18b that fit and slide in the guide holes 14a, 14b are implanted is attached to the left side plate 14. and the right side plate 13 (FIG. 2).

[Although not shown in the right side plate 13, similar abbreviations [
The cassette box 18 is provided with a shaped guide hole and a bottle that slides into the guide hole. Bottle 18a installed in cassette box 18 (Fig. 3)
A link B17 is rotatably attached to the
Rotatably link AI6 to the bottle 17a installed in 17
is installed, and the bin 17a is inserted into the hole 1 of the left side plate 14.
The pin 16a is fitted into the hole 11b of the spur gear (left) 11, and is installed in the pin 16a and the spur gear (left) 11. A spring 15 is installed between the bottle and the bottle. [The spur gear (right) 12 (FIGS. 2 and 1) is similarly configured].

The top plate 20 (Fig. 2) has a side auxiliary plate 19 (
2 and 3) are fixed. A switch A mounting plate 21 (Fig. 3) is fixed to this side auxiliary plate 19,
A switch A 23 is fixed to the switch A mounting plate 21, and a switch A operating plate 22 is rotatably mounted around a pin 21a implanted in the switch A mounting plate 21. 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 26 is fixed to the switch B mounting plate 25.
is rotatably attached to the switch B mounting plate 25 with a bin 25a planted therein as a center of rotation. Further, bins 19a and 19b are installed on the side auxiliary plate 19,
Each bottle 19a.

Swing lever 28.19b is the center of rotation. The open lever 29 is rotatably attached, and the bottle 29a implanted in the open lever 29 and the hole 28a provided in the swinging lever 28 fit together, so that the open lever 29 and the swinging lever 28 are interlocked. It is supposed to be done. A spring 24 is stretched between the switch A operating plate 22 and the cut and raised portion of the switch A mounting vi21, and a spring 30 is stretched between the cut and raised portion of the switch B operating plate 26 and the switch B mounting plate 25. , each switch 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), and a cassette door 32 (FIG. 3) is rotatably attached to this shaft 31. 1) is attached to the cassette door 32, and the bin 3 is attached to this cassette door 32.
2a is installed, and this bottle 32a and the open lever 29
The end faces of the two are in contact with each other. Furthermore, top plate 2
0 (FIG. 2), a switch C mounting plate 35 is fixed. As shown in FIG. 4, a switch operating piece 36 is rotatably attached to the switch mounting plate 35 by means of 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. Cassette door 32 (third
A front panel 41 having a cassette tape insertion slot 41a is provided at the front of the cassette tape (FIG.).

Next, the operation will be explained.

Insert the cassette tape 42 (Fig. 3) 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 (position 42a in Fig. 3).
, when the cassette tape 42 is further pushed in, the cassette box 18 is pushed backward, and the cassette box 18 is linked with B17. Spur gear connected through link A16 (left)
11. Similarly configured spur gear (right) 12 (Fig. 1),
Spur gear (small) 8 is shown in Figure 1.

The transmission plate 7 (Fig. 2,
7) is also rotated in six directions, and as the shaft 7a rotates, the spring 9 (FIG. 1), which urges the cassette tape in the ejection direction, is further stretched along the longitudinal direction of the groove 6b of the worm wheel 6. It will be done. 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 to the state before the cassette tape was inserted, and the shaft 7a moves to the upper end of the groove 6b (the seventh
), the spur gear (small) 8 and the spur gear (right) 12 rotate in the direction A in FIG. 1, and the spur gear (small) 8 in FIG. The spur gear (left) 11 also rotates in the same direction as the shaft 10 rotates.
Through the third link A16 and link B17, the cassette box 18 is connected to the guide hole 14 of the side plate 13.14.
a, 14b (Fig. 3.

5), and then moves downward.

The loading of the cassette tape 42 is completed in state B shown by the two-dot chain line 42b in FIG.
23 (Fig. 1) still does not work, and the spur gear (right) (
Left) 12.11 continues to rotate in the direction A, that is, the spring 15 (Fig. 3) is in a stretched state, and when the stretch of the spring 15 reaches a certain amount, the switch A2 is turned on.
3 (Fig. 1) is the pin 12 implanted in the spur gear (right) 12.
The bending portion 22a is pushed by the switch A operating plate 22.
rotates in the A direction, the switch A23 turns from on to off, and the rotation of the motor l in the A direction stops. At this time, the spring 15 remains stretched and the cassette box 18 (
Fig. 5) Stop at the 18° position. 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 in direction B in the figure and rotating the shaft 7a of the transmission plate 7 in the same direction by the spring 9, it passes through the spur gear (small) 8° 8' to the spur gear (right) 12. Spur gear (
Left) Tell the rotation to 11. This causes the cassette box 18 (FIG. 3) to move from below to above and then to the front. The switch B27 is an ejection completion switch, and when the cassette box 18 reaches the ejection completion state, that is, the cassette tape reaches the position indicated by the two-dot chain line 42a in FIG. Music section 2
6a is pressed, the switch B operation plate 26 rotates in the B direction, 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 42.
The ejection operation from b to the first position 42a is completed.

In this embodiment, the cassette box 18 (Fig. 3)
As shown in FIGS. 5 and 6, a guide 43 is arranged near the roughly shaped hole 14a to guide the movement of the guide 43. Next, the role of this guide 43 will be described.
On the other hand, 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 pin 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, and the broken line 18'
The state shown by indicates that the cassette tape has been completely loaded, and in these two states, the pin 18C and the guide 43 do not engage with each other and are unrelated. FIG. 6 shows the state at the corner portions of the guide holes 14a and 14b where the cassette box 18 is switched from horizontal movement to vertical movement or vice versa. In this state, consider the case where the cassette box guide 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 pin 18a, but there is no posture control of the cassette box 18 in the direction of the arrow A at that time, and therefore the pin 18b rotates about the pin 18a, making it unstable.

On the other hand, in this embodiment, since the pin 18C is inserted into the guide groove 43a of the guide 43, the pin 18C is inserted into the guide groove 43a of the guide 43.
When a is the fulcrum, the cassette box 18 is attached to the pin 18C.
The cassette box 18 is held down by the play of the groove width of the guide groove 43a, and the posture of the cassette box 18 becomes constant.

As is clear from the above embodiments, the present invention includes 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, and a cassette box (18). Guide holes (14a) arranged on both sides of the cassette box (18) for guiding the cassette box (18) along a predetermined path.

14b) left and right side plates (side plates) (13,
14) and the guide holes (
14a.

14b) and guide the movement of the cassette box (18).
8a.

18b), a motor (1) capable of forward and reverse rotation, and a motor (1)
) [For example, a pair of left and right guide members (16,
17) to the cassette box (18).
), and this power transmission mechanism (5°6, 7. 8.
8', 10.11.12. ) is the motor (1)
A connecting shaft (10) provided between the left and right side plates (13, 14) in order to transmit the rotational force of the Transmission members (8, 8', 1) that are combined with a pair of guide members (16, 17) to transmit the rotational force of the motor (1) to the cassette box (18) from the left and right sides;
1.12). and a cassette box (18) that holds a wide cassette tape (42).
When moving, the rotational force of one motor (1) is separated to the left and right by the connecting shaft (10), and transmitted by the transmission members (8, 8', 11.12) provided on the left and right sides of the connecting shaft (10). ,
[For example, via a pair of left and right guide members (16, 17)] The cassette box (18) can be driven and guided at the same timing and in a well-balanced manner on both the left and right sides of the cassette box (18). are guide holes (14a) provided in the left and right side plates (13, 14).

14b).

〔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 is smaller than that of the conventional VTR.

Further, the present invention has the advantage that operability can be improved because the tape is automatically loaded just by inserting the cassette tape.

Further, the present invention provides left and right side plates provided with guide holes disposed on both sides of the cassette box for guiding the cassette box along a predetermined path, and a left and right side plate that engages with the guide holes of the left and right side plates to guide the cassette box while the cassette box is moving. Power that drives the cassette box from both the left and right sides using the left and right guard f members that guide, one motor that can be forward and reverse, and the rotational force of the motor separated into left and right by a connecting shaft and transmission members provided on the left and right sides. By being equipped with a transmission mechanism, when moving a cassette box that holds a wide cassette tape for installation or ejection, the cassette box can be driven and guided from the left and right sides at the same timing and in a well-balanced manner. Therefore, it is possible to provide a VTR having a cassette tape loading/unloading device that allows the cassette box to be moved stably and has excellent reliability.

[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 horizontal and vertical movement of the cassette box is switched, and FIG. 7 is an exploded perspective view of some parts of FIG. [Explanation 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, 8.8'10.
11.12...power transmission mechanism), 13°14...
Side plate, 14a, 14b...Guide hole, 1
6. 17...Link, 18.18'...Cassette box, 18a, 18b...Pin, (16
, 17, 17a, 18a, 18b-... guide member), 38... switch, 41... front panel,
41a...Cassette tape insertion slot, 42...Cassette tape. Figure 4 Figure 5 /8c /θσ /8b M6 Figure 6 /1

Claims (1)

[Claims] 1. A cassette box that holds the cassette tape inserted from the cassette tape insertion slot provided on the front of the VTR;
left and right side plates disposed on both sides of the cassette box and provided with guide holes for guiding the cassette box along a predetermined path; and left and right side plates that engage with the guide holes of the left and right side plates to guide the cassette box during movement. a motor capable of forward and reverse rotation, and a power transmission mechanism that transmits the rotational force of the motor to the cassette box using the left and right guide members as a guide, and the power transmission mechanism includes a , a connecting shaft provided between the left and right side plates for transmitting the rotational force of the motor to the cassette box, and a left and right connecting shaft installed on the left and right sides of the connecting shaft for transmitting the rotational force of the motor to the cassette box from the left and right. a transmission member, the rotational force of the motor is simultaneously transmitted to the left and right transmission members via the connection shaft, and the left and right transmission members are always driven at the same timing to move the cassette box. A cassette tape loading/unloading device characterized by comprising: