JPS60124055A - Cassette holder device - Google Patents

Abstract

PURPOSE:To stop a cassette holder at an optimum position in a cassette loading/ unloading mode regardless of a fact whether the cassette type VTR main body is stored in an adaptor or not. CONSTITUTION:An operator releases a stopper when a cassette holder put into a cassette holder 13. Thus a lift arm 16A is turned toward an arrow (f) around a shaft 13F by the force of a bucket spring 14A. Therefore the revolving power toward an arrow (e) is produced at a part of a shaft 17E owing to a link structure of the arm 16A, the holder 13, a holder bracket 17A and a holder arm 18A. Then the holder 13 moves relatively away from the bracket 17A. While a detection pin 32 of a detection part 30 receives no external force and therefore the arm 16A continues its revolutions round the shaft 17E and then stops at a moment when a pawl part 16A at the tip of the shaft 17E is hooked to a pawl part 19a of a control lever 19. Then the movement of the holder 13 is stopped when the lower side 13a of a cassette take-out port of the holder 13 is set at the same height of a cabinet 60 of the VTR main body 10.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a cassette holder device that can set the stopping position of a cassette holder of a cassette-type VTR that is housed in an adapter and is sometimes used. be.

[Technical background of the invention]

Currently, most of the camera-integrated VTRs that have been proposed in which a camera and a VTR are integrated have only a recording function. This is to reduce the weight of the camera-integrated VTR as much as possible. Therefore, when playing back using such a camera-integrated VTR, an adapter is used.

For example, a camera-integrated VTR (1
0 is the main body and 11 is the handle), but the arm itself does not have a playback function or a tuner. When using such a VTI to view playback images or record on-air TV broadcasts, the playback function (circuit) is required.
Or you need an adapter with a tuner. An example of this adapter 100 is shown in FIG. The adapter 100 shown in this figure includes a main body holder 102 that accommodates a camera-integrated VTR main body 1o, and a handle accommodating space 103 that accommodates the handle 11 removed from the VTR main body 10.
It is equipped with Note that 101 is a lid portion of the adapter. When the VTR main body 10 (with the hood removed) is housed in the main body holder 102 in the direction of arrow A cross-sectional view is shown in Fig. 3. However, this figure shows only the outline of the adapter 100, the cabinet of the VTR main body 10, and the cassette holder 13 normally located inside the VTR main body 10. As shown in this figure, the VTR body 1
0)
When loading the cassette holder 130 (in the direction of arrow C shown in the figure) or taking it out (in the opposite direction of arrow C), the lower side 13a of the cassette holder 130 ejection port is connected to the outer surface of the adapter 100 (in this case, The optimum position is slightly above the lid part 102).

[Problems with background technology]

However, adapter 1. Determine the stopping position of the cassette holder 13 based on when the main body 10 is housed in the OO.
4, when the VTR main body 10 is not housed in the adapter 100, there is a large gap D (indicated by diagonal lines) between the cabinet of the VTR main body 10 and the lower side 13a of the cassette outlet of the cassette holder 13. (the part shown) will be completed. For this reason, the cassette may be accidentally pushed into this gap, and such a gap also has the drawback of being unfavorable in terms of appearance.

On the other hand, if the stopping position of the cassette holder 13 is determined based on when the VTR main body 10 is not housed in the adapter 100, then when the VTR main body 10 is housed in the adapter 100, the cassette ejection opening of the cassette holder 13 will be closed. Since the lower side 13a is located below the top surface of the cabinet of the adapter 100, it becomes very difficult to insert and remove the cassette.

[Purpose of the invention]

The present invention has been made in view of the above drawbacks, and its purpose is to:
To optimize the stopping positions of a cassette and a holder when loading and unloading a cassette, whether the main body of a cassette type VTR is housed in an adapter or not.

[Summary of the invention]

Therefore, the present invention includes a detecting section for detecting whether or not a cassette-type VTR is housed in an adapter capable of accommodating a cassette-type VTR, and a cassette holder for the cassette-type VTR that protrudes with its opening toward the outside of the main body. and a cassette holder moving means for moving the cassette holder by the cassette holder moving means to a position corresponding to an outer surface of the adapter when the detecting section detects that the cassette type VTR is housed in the adapter. When the detection unit detects that the cassette-type VTR is not housed in the adapter, the cassette-holder moving means moves the cassette-holder to the cassette-type VTR.
The above object was achieved by creating a cassette holder device equipped with a cassette holder movement limiting means that limits the movement of the cassette holder to an extent corresponding to the outer surface of the cassette holder.

[Embodiments of the invention]

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

FIG. 5 is a perspective view of an embodiment of a cassette holder device to which the present invention is applied. However, the detection part is excluded. FIG. 6 is a side view of the apparatus shown in FIG. 5. In this case, the detection section is also shown as 1-, and only this detection section is shown in a cross-sectional view for explanation.

As shown in FIGS. 5 and 6, the cassette holder 13 (
The outer plate shown in FIGS. 1 to 4 is omitted) is connected to the lift shaft 15 via two packet springs 14A and 14Bf. Reference numerals 17A and 17B indicate holder brackets, which are attached to the base plate 40 of the VTR body 10 (see FIGS. 1 to 4) with screws.

16A and 16B are lift arms, each of which has a holder bracket at one end.
The shaft on the 7A side is called 17E), and the other end is the cassette holder 1.
30 shafts provided on both sides (holder bracket 17
The cassette holder 13 on the A side is supported by a shaft on the side surface thereof (referred to as 13F), and is rotatable on each shaft. Further, the lift arm 16A116B supports both ends of the lift shaft 15 at an intermediate portion close to the connecting shaft (13F, etc.) with the cassette holder 13. 18A is a holder arm. The holder arm 18A has one end attached to a side shaft (referred to as 13G) of the cassette holder 13, and the other end attached to the holder bracket 17A.
(referred to as 17H), and is rotatable on each axis (a similar holder arm is also provided on the holder bracket 17B side, although not shown). The lift arms u6A and 16B, the lift shaft 15, the packet springs 14A and 114B, and the holder arm 18A (including the other holder arm, not shown) constitute a cassette holder moving means. Axis 17 of lift arm 16A
The tip on the supporting portion side is claw-shaped (hereinafter, this claw-shaped portion will be referred to as a claw portion 161). 19 is a control lever;
It is formed into an L shape.

The control lever 19 has its center connected to the holder bracket 17A.
It is supported on a shaft (referred to as 17) and is rotatable about the entire center of this shaft. One end of the control lever 19 has a claw portion 19a that engages with a claw portion 161 of the lift arm 16A, and the other end has a boss 19b provided at right angles to the rotation surface of the control lever 19. There is. 20 is a relay lever, which is also formed in an L shape. The relay lever 20 has its center portion attached to a holder bracket) 17, A
It is supported by a shaft (referred to as 17J) provided at nl and is rotatable about this shaft. One end of the relay lever 20 is provided with an elongated hole 20a that engages with the post 19b of the control lever 19, and a hole 20 for attaching one end of the control spring 21.
b is provided. The other end of the control spring 21 is attached to a protrusion 171 provided on the holder bracket 17A. The tension of the control spring 21 causes the relay lever 2 to
0, a rotational force in the direction of arrow j in the figure is generated and the relay lever 2
The other end of the holder bracket 17A is pressed against the mounting portion of the holder bracket 17A. The control lever 19, the relay lever 20, the control spring 21, and, as will be described later, the lift shaft 15 and the cassette holder 137, which have the structure shown in the figure, constitute cassette holder movement limiting means.

30 is a detection section. 30 detection units, 10 VTR main units
A bracket 31 added to the cabinet, a detection bottle 32 built into this bracket 31 and inserted into holes 50a and 50b formed in each of the substrate 40 and the holder bracket 17A at one end, and a detection bottle 32 inserted in the middle of the detection bottle 32. The protrusion 32a provided in the bracket 31 is connected to the step 311L in the bracket 31.
It is composed of a detection spring 33 that presses toward the side (toward the cabinet side of the VTR main body 10). In addition, the above holes 5Qa, 50
b is provided directly below the relay lever 20 that presses the mounting portion of the holder bracket 17A, and is located directly below the detection bin 32.
The tip of the lever runs slightly below the relay lever 20.

When such a detection section 30 is used, a suppression bin 34 is attached to the adapter 100 at a position that presses the detection bin 32 of the detection section 30 when the VTR main body 10 is accommodated. The detection section 30 provided on the VTR main body 10 and the position of the suppression pin 34 provided on the adapter 100 corresponding thereto are shown in FIGS. 7 and 8. FIG. 8 is a sectional view similar to that shown in FIG.

Section 9.10 describes the operation of the apparatus of this embodiment configured as described above, when the VTR main body 10 is used alone without the adapter 100, and when it is used while housed in the adapter 100. This will be explained with reference to FIG. In these figures, 60 is a cabinet for the VTR main body 10, and 70 is a cabinet for the adapter 100.

In addition, in this case, the pair of lift arms 16A,
16B, packet springs 14A, 14B, etc., the movement of one is similar to that of the other, so the description of the one with A added to the reference numeral will be explained, and the explanation of the other will be omitted.

The cassette holder 13 is normally in the position shown in FIG. This is because, although the cassette holder 13 constantly tries to rise due to the tensile force of the packet spring 14A, it is stopped at this position by a force or bar (not shown).

First, a case where the main body is not housed in the adapter 100 will be described. For example, when loading a cassette into the cassette holder 13, the operator releases the above-described stopper.

At this time, the lift arm 16A attempts to rotate in the direction of arrow f around the shaft 13F due to the force of the packet spring 14A. For this reason, lift arm 16A1 cassette holder 13
, holder bracket 17A and holder arm], 8A
Due to the four-link structure, a rotational force in the direction of arrow e is generated on the shaft 17E. Therefore, the cassette holder 13 is relatively separated from the holder bracket 17A.

On the other hand, the detection bin 32 of the detection unit 30 is not subjected to any external force at this time, so it stays at the position shown in FIG. 9. Therefore, the relay lever 20 and the control lever 19 are also in the position shown in FIG. And lift arm 16Al'l: axis 17E
It continues to rotate around , and stops when the claw 161 at its tip engages the claw 19a of the control lever 19. The state at this time is shown in FIG. That is, the cassette holder 13 stops when the lower side 13a of the cassette outlet of the cassette holder 13 is at the same height as the cabinet 60 of the VTR main body 10.

Next, a case J81 in which the operator releases the stopper while the VTR main body 10 is accommodated in the adapter 100 will be described. In this case, since the pin 34 provided on the adapter 100 presses the detection pin 32 of the detection section 30, the detection pin 32 moves while pushing the relay lever 20. Therefore, the relay lever 20 is rotated in the direction of the arrow j/ around the axis 17J'i, and therefore the boss 19b of the control lever 19 is rotated through the elongated hole 20a of the relay lever 20.
moves, and the control lever 19 rotates about the shaft 17I in the direction of arrow i. Therefore, the claw portion 19& of the control lever 19 is located outside the trajectory drawn by the claw portion 161 at the tip of the lift arm 16A. control lever 19
When the queen stopper is released in this state, the lift arm 16A rotates counterclockwise about the shaft 17, and the lift arm 115 engages imaginarily with the cassette holder 13 and At this time, the cassette holder 13 stops moving.The state at this time is shown in FIG.
Place the skein at the point where 3a is almost at the same height as the adapter cabinet 70.

The seat holder 13 stops.

In this case, if the cassette holder is moved from its normal position, it will stop in two stages by simply installing a detector with a simple structure and a lever that operates according to the situation. This makes loading and unloading cassettes very convenient.

FIG. 12 shows another embodiment of the invention. In this embodiment, a plunger 35 is used to perform the operation of the control lever 19 shown in the previous embodiment. Components that are the same as those shown in FIG. 5 are given the same numbers and their explanations will be omitted. In this case, a microswitch (not shown) is used as the detection section, and a VTR
It is conceivable that a means for electrically detecting that the connection has been made is used at the connection between the main body and the adapter. By using such a means, unlike the detection section in the above-described embodiment, it is no longer possible to accidentally press the detection bin and move the cassette when operating only the VTR main body.

〔Effect of the invention〕

As explained above, according to the present invention, there are various types of spools and skeins.

Even if the main body of a VTR is housed in an adapter,
Even when the cassette holder is not housed in the adapter, the cassette holder can be stopped at an optimal position when loading and unrolling the cassette.

[Brief explanation of drawings]

Figure 1 is a side view of a conventional camera-integrated VTR, Figure 2 is an explanatory diagram for explaining the case where the camera-integrated VTR shown in Figure 1 is accommodated in an adapter, and Figure 3 is the same as shown in Figure 2. 4 is a cross-sectional view of the state viewed from the Y-Y' force direction, FIG. 4 is a diagram that does not explain all the drawbacks of the conventional system, FIG. 5 is a perspective view showing an embodiment of the device of the present invention, and FIG. FIGS. 7 and 8 are side views of the device according to the embodiment shown in the figures, and FIGS.
The drawings are diagrams for explaining the operation of the device according to one embodiment of the present invention shown in FIGS. 5 to 8, and FIG. 12 is a perspective view of essential parts showing another embodiment of the device. 10... VTR body 13... Cassette holder 1
4 people. 14B...-Packet spring 15... Lift shaft 16
A, 16B...Lift arm 18A...Holder arm 17A. 17B...Holder bracket 19...Control, (
-20... Relay lever 21... Control spring 30.
...Detection part 31...Bracket 32...Detection bottle 33...Detection spring 34...Press bottle 40.
... Board 60... Cabinet of the VTR body, 7o.
...Adapter cabinet 100...Adapter agent Patent attorney Noriyuki Chika (and 1 other person) 15- Ina 1 Figure 2

Claims (1)

[Claims] a detection unit that detects whether or not the cassette-type VTR is housed in an adapter capable of accommodating the cassette-type VTR; and a cassette holder moving means that causes the cassette holder of the cassette-type VTR to project its opening toward the outside of the main body. and,
When the detection section detects that the cassette VTR is housed in the adapter, the cassette holder moving means moves the cassette holder to a position corresponding to the outer surface of the adapter, and the detection section moves the cassette holder to a position corresponding to the outer surface of the adapter. cassette holder movement limiting means for restricting the movement of the cassette holder by the cassette holder moving means to a position corresponding to the outer surface of the cassette-type VTH when it is detected that the cassette-type VTR is not accommodated in the adapter; A cassette holder device comprising: