JPH0448468A - Tape cassette loading device - Google Patents

Abstract

PURPOSE:To attain thinning a VTR device main body by forming an openning part of which a corresponding part to a deck upper face part is cut off on a holder bottom face part and making a constitution that the deck upper face part flushes with the openning part. CONSTITUTION:An openning part 14 of which a correspoding part to the upper face part of a deck 1 is cut off is formed on the bottom face part 13 of a holder 12 and in the locked condition of the holder 12, the condition of approximately flushing with the upper face part of the deck 1 facing into the open part 14 of the holder bottom face part 13 can be obtained. Accordingly, the position of the holder 12 is lowered for that the holder bottom face part 13 does not exist on the upper face part of the deck 1 and a tape cassette 91 can be made to approach the deck 1 upper face part extremely. Thus, a VTR device main body can be constituted thin.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a tape cassette mounting device for a VTR, and is particularly designed to be thin.

[Prior Art] This type of tape cassette loading device is equipped with a support mechanism that supports a holder into which a tape cassette is inserted so that it can approach and move away from a deck. The predetermined cassette mounting position is when the cassette is inserted and the holder is brought close to the upper surface of the deck. The cassette mounting position is held by a locking mechanism.

[Question 8 to be solved by the invention] However, in the past, there was a holder bottom part between the deck top part and the cassette at the cassette mounting position, which caused a limit in terms of making the device thinner.

SUMMARY OF THE INVENTION An object of the present invention is to provide a tape cassette mounting device that can be made thinner by eliminating the bottom surface of the holder from the top surface of the deck at the cassette mounting position.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a tape cassette mounting system that includes a holder into which a tape cassette is inserted, and a support mechanism that supports this holder so that it can approach and separate from a deck. In the device, an opening is formed in the bottom of the holder by cutting out a portion corresponding to the top of the deck;
The present invention is characterized in that the upper surface of the deck faces approximately flush with the opening when the holder approaches the deck using the support mechanism.

[Function] After forming an opening in the bottom of the holder that corresponds to the top surface of the deck, in the cassette mounting position, the bottom surface of the holder does not exist on the top surface of the deck, and the top surface of the deck is inserted into the opening. You will be forced to face the road surface.

[Example] The present invention will be described in detail below based on the accompanying drawings.

In FIGS. 1 to 3 showing a tape cassette loading device as an example of the present invention, 1 is a deck, 2 is a tram with a built-in magnetic head, and 11 is a cassette housing. 2 shows the locked state, and FIG. 3 shows the ejected state.

On the upper surface of the deck 1, a pair of rope ink pole base guide elongated holes 33 are formed on both sides of the drum 20, and a pair of left and right circular holes 4, 4 for tape winding and supply reel stands are formed. or is formed. This deck-￥1
A frame body 5 surrounding the front and both sides of the frame body 5 is connected to the frame body 5 .

The cassette housing sink 11 includes a plate 21 disposed on the upper surface of the holder 12 into which the tape cassette is inserted, and is pivotally attached to the side surface of the plate 21 or the side surface of the holder 12 by a pin 22.

The horizontal width of the holder 12 is larger than the horizontal width of the deck 1,
A large opening 14 is formed in the bottom surface 13 of the holder 12 by cutting out a portion corresponding to the top surface of the deck 1.

A pair of front and rear hanging pieces 1516 are formed on both sides of the holder 12, and a pair of left and right hanging pieces 18.18 are formed on the front edge of the holder bottom part 13.
．． 18 are each provided with an inwardly projecting locking pin 19, 19 (see FIG. 6).

Hanging pieces 23 are formed on both side surfaces of the plate 21, and protruding pieces 25.2 are formed on the hanging pieces 23 before and after the notch 24.
A roller 27 is disposed inside the holder 12, and a support pin 28 of the roller 27 is attached to the hanging piece 16 at the rear of the side surface of the holder 12.
The support arm 29 is fixed to one end of the support arm 29 through a long hole 17 formed in the support arm 29 .

This support arm 29 is pivotally connected to another support arm 31 through a pin 32 at the intermediate portion.
One end of the holder 12 is pivotally attached to the hanging piece 15 in front of the side surface of the holder 12 by a pin 33.

A connecting shaft 34 is connected between the other ends of the left and right support arms 29 and 29.
The connecting shaft 34 is rotatably supported between the front ends of the frame 5. And left and right support arms 31.
A pin 35 is fixed to the other end of the frame 5, and the pin 35 is inserted into a long hole 6a formed in the support piece 6 on the side of the frame 5.
is engaged in.

A tension sublink (not shown) is installed between the pin 35 on the opposite side to that shown in FIGS. 2 and 3 and the front part of the side part of the frame 5. A plate 36 is pivotally attached to the side pin 35, and a tension bridge 39 is installed between the plate 36 and the front side of the frame 5.

A parallel elongated hole 37 and rack teeth 38 are formed in the rear part of the plate 36, and the elongated hole 37 has a pin 41 fixed to the flaket 7 formed in the rear part of the side part of the frame 5. It matches. In addition, a gear 42 supported on the racket 7 meshes with the rack teeth 38, and a gear 43 coaxially and integral with the gear 42 is connected to the gear 43 of a tamper 44 fixed to the racket 7.
It meshes with 5.

Furthermore, torsion splinters 46 are provided on pins 8 fixed to the front portions of both sides of the frame body 5.

This torsion splinter 46 is supported by a pin 8 through a coil portion 47, and has a short lower half portion 48 locked to a stopper portion 9a, and a long upper half portion 49 capable of protruding above the frame body 5. It can be locked to. The upper half portion 49 of this torsion splinter 46 can be pressed against both sides of the holder bottom surface portion 13 from below.

In front of the front part of the frame body 5, a lock plate 51 shown in FIG. 6 or the like is disposed via a bracket (not shown).

The lock plate 51 is horizontally long and has a pair of left and right lock claws 52, 52 on its upper side, and a tension splinter 59 is installed between it and the bracket fixed to the front part of the frame 5. A slide plate 61 is arranged along the inside of the lock plate 51, and this slide plate 61 is also horizontally elongated, and a pair of left and right lock claws 62, 62 are also provided on its upper side.

Further, the bracket fixed to the front part of the frame 5 is provided with a pair of left and right pins 71 and 71 that protrude forward. It protrudes forward from 53. An arm 72 is swingably supported at the front end of the pin 71, and the arm 72 is biased counterclockwise in the drawing by a torsion splinter (not shown).

The arm 72 faces rightward from the lock claw 52 of the lock plate 51 at the right end in the drawing, and faces toward the right from the lock claw 52 of the lock plate 51 at the left end.
It is mounted and engaged with a locking piece 54 formed in 1. A switch actuating piece 55 is provided vertically from the locking piece 54 on the left side in the figure, and can come into contact with the low-speed switch and Y-chia 5.

Further, an elongated hole 57 is formed in the middle part of the lock plate 51 through a notch 56, and the slide plate 61
A notch 66 is formed in the middle part of. The notch 66 of the slide plate 61 and the lock plate 5
A pin 81 is engaged with the elongated hole 57 of 1.

The pin 81 is provided at the front end of a lever 82 disposed below the deck l as shown in FIG.
It is equipped with 4. This pin 84 or the cam groove 86 of the cam 85
is engaged in. This cam 85 is rotationally driven by a rope ink motor (not shown).

In the lock plate 51 and slide plate 61 in the above assembled state, the lock claw 6 of the slide plate 61
2 or 1 than the lock claw 51 of the lock plate 51.
For example, it is about 0.51 lower.

Next, the operation of the tape cassette loading device having the above configuration will be explained.

First, as shown in FIG.
While the tape cassette (not shown) is in the standby state at the raised position, the tape cassette (not shown) is inserted into the holder 12 and the holder 12 is pushed down.

When the holder 12 is pushed down, both support arms 2931 swing and fold, and as shown in FIG. 2, the holder 12 approaches the upper surface of the deck 1.

During this process, the roller support pin 28 of the support arm 29 moves rearward along the long hole 17 of the hanging piece 16 of the holder 12, and the protruding piece 25 of the notch 24 of the hanging piece 23 of the plate 21 moves backward. The plate 21 is brought into contact with the upper surface of the holder 12 so that the plate 21 is superimposed on the upper surface of the holder 12.

Further, the pin 35 of the support arm 31 moves backward along the long hole 6a of the support piece 6 of the frame 5, and the plate 36
The bracket 7 also moves rearward along the pin 41 of the bracket 7 which engages with the elongated hole 37 thereof.

The above-mentioned folding operation of both support arms 29, 31 is carried out against the tensile force of the tension splinter 39, and at the same time the rack teeth 38 of the plate 36, the gears 42, 43 of the bracket 7, .
Rotation of the tamper 44 is performed via the tamper 45. tampa 44
is a rotating type that is filled with viscous fluid such as high viscosity oil, and no damping force is generated in the above rotational direction.

In Fig. 2, both support arms 29°31 or
On the side of the frame 5 on the side of the deck 1, the torsion splinter 46 is placed on a straight line and completely folded, and the torsion splinter 46 attached to the pin 8 on the side of the frame 5 is
The upper half portion 49 is in a state of being pushed downward by the side lower surface of the bottom surface portion 13 of the holder 12.

When the holder 12 approaches the upper surface of the deck l due to northward operation, the bottom surface 13 of the holder 12 is cut out, as shown in FIGS. 1 and 2 and also in FIGS. The upper surface of the deck l faces inside the opening 14, and the road surface -
The situation is as follows. In FIGS. 4 and 5, the tape cassette 91 is indicated by a virtual line.

The road surface condition between the holder bottom surface 13 and the deck top surface is maintained by a locking mechanism, etc., which will be described below.

FIG. 6(a) shows the unlocked state, that is, the standby state. When the holder 12 is pushed down, the double-ended screw pins 19.19 provided on the left and right hanging pieces 18.18 of the front edge of the holder bottom surface 13 are removed from each arm. Approach the right end of 7272 from above and select the double-ended pin 19.19 or each arm 72. ．． 72
By simultaneously pressing down the right end of the
) can be locked.

In other words, as shown in Fig. 6(b), the right end of each arm 72, 72 is connected to the torsion link (
When the two arms 72.
72 The tension sublink 5 is disengaged from the mounting engagement at the left end and is installed between it and the fixed flaket (section) at the front of the frame 5.
The lock plate 51 moves to the right in the drawing due to the tensile force of 9. This movement of the lock plate 51 is performed along the respective elongated holes 53, 53 that engage with the left and right pins 71, 71.

By the above movement of the lock plate 51 in the right direction in the figure,
Its two locking pawls 52,52 are locked onto each locking pin 19,19. As a result, a locked state as shown in FIG. 6(b) is obtained.

By the way, in order to obtain reliable locking operation, etc., please refer to Fig. 6 (
As shown in C), the holder 12 is given a downward overstroke, and for example, the amount of overstroke shown by hl in FIG. 6(b) is about 1.5 sm.

By absorbing the overstroke to some extent, holder 1
The operation of the stroke absorption mechanism for regulating the upward play of 2 will be explained below.

That is, when the lock is activated as shown in FIG.
5 or the rope ink switch 75 to turn on the rope ink switch 75.

When the rope ink switch 75 is turned on, the rope ink motor (not shown) is driven to rotate, and the tape is pulled out from the tape cassette 91 by the rope ink mechanism (not shown), and the cam 85 shown in FIG. Either a lever 82 with a pin 84 at the rear end that rotates around and engages with the cam groove 86, or a pin 83 in the middle.
Rotate counterclockwise. As the lever 81 swings, the pin 81 provided at the front end of the lever 81 moves to the right in the figure.

As the pin 81 moves to the right, the slide plate 61, which is engaged with the pin 81 at the notch 66, moves to the right in the figure, as shown in FIG. 6(d). This movement of the slide plate 61 is performed along the respective elongated holes 63, 63 that engage with the left and right pins 71, 71. Further, the rightward movement of the pin 81 is performed within the elongated hole 57 of the lock plate 51 and absorbed.

By moving the slide plate 61 in the right direction as shown in the figure, both lock claws 62, 62 or each lock pin 19, 19
Climb onto it and push down both of these bottles 19.19 slightly. That is, the lock claw 62 of this slide plate 61
In the embodiment, it is lower than the lock pawl 51 of the lock plate 51 by about 0.5111, so that the overstroke amount h1 in FIG.
Is the overstroke amount indicated by h2 in figure (d) 1.
It is reduced to about 01.

Here, the stroke is absorbed by driving the rope ink motor that pulls out the tape from the tape cassette 91, and both lock claws 62, 62 of the slide plate 61 securely lock each lock pin 19, 19. Therefore, even if the locked state by the lock plate 51 is inadvertently released due to, for example, a fall, the forced locked state is maintained by the slide plate 61, as shown in FIG. 6(d).

FIG. 6(e) shows the eject state. When an eject button (not shown) is operated, the rope ink motor is driven in reverse, and the tape is returned to the tape cassette 91, and the cam 85 and lever 82
The pin 81 is moved to the left in the figure from the state shown in FIG. 6(d).

As the pin 81 moves to the left, as shown in FIG.
The lock plate 51, which is engaged with the lock plate 1 through the elongated hole 57, also moves to the left in the figure.

By moving both the slide plate 61 and the lock plate 51 to the left in the figure, the double-ended locking pin 19.
At the same time, the locked state of each lock claw 52, 62, 52, 62 is released, and the switch operating piece 55
When the rope ink switch 75 is moved away from the rope ink switch 75, the rope ink switch 75 is turned off. Therefore, lock plate 5
1, slide plate 61, arms 72, 72, etc. return to the standby state shown in FIG. 6(a).

Further, by the above ejecting operation, the upper half 49 of the torsion splinter 46 or the holder bottom surface 13 is pushed up from the state shown in FIG. 2, so that both support arms 29.
31, on the side of the frame 5 side on the side of the deck l, -
Even if they overlap on a straight line and are in a completely folded state, a trigger for the holder 12 to rise is given. Therefore, the torsion splinter 46 constitutes a rise inducing means.

In this way, the holder 1 is
After the support arms 29 and 31 are raised slightly by the tension force of the tension splinter 39 as shown in FIG. 1 to a return state in which it is on standby in the raised position.

Incidentally, during such a pop-up operation, a damping force is generated in the tamper 44, and the holder 12 is raised slowly with appropriate resistance.

As described above, in the tape cassette mounting device of the present invention, an opening 14 is formed in the bottom surface 13 of the holder 12 by cutting out a portion corresponding to the top surface of the deck l. Since the upper surface of the deck l faces inward of the opening 14 of the deck l, a road surface-like condition can be obtained.
By lowering the position of the holder 12, the tape cassette 91 can be brought very close to the upper surface of the deck l, as shown in FIGS. 4 and 5. Therefore, the main body of the VTR device can be made thin.

Further, in the embodiment, when the holder 12 is in the locked state, as shown in FIG.
From the fact that a completely folded state is obtained by overlapping on a straight line on the side of the side frame 5,
This is advantageous in terms of making the device body thinner.

In the embodiments, the present invention has been explained based on a pop-up type, but it goes without saying that the present invention can also be applied to a type in which the holder is moved parallel to the sink.

[Effects of the Invention] As described above, according to the present invention, in the tape cassette mounting device, an opening is formed in the bottom of the holder by cutting out a portion corresponding to the top surface of the deck, and the top surface of the deck is inserted into the opening. Since the structure is such that the cassettes face approximately flush with each other, the cassette can be placed extremely close to the upper surface of the deck at the cassette mounting position, and the main body of the apparatus can therefore be made thinner.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view showing an example of a tape cassette mounting device to which the present invention is applied in a locked state, FIG. 2 is a side view similarly showing the locked state, FIG. 3 is a side view showing the eject state, and FIG. 4 1 is a front view of the holder cut away along the arrow A-A line in FIG. 1 and shows how it approaches the deck, FIG. Figures a) to (e) are front views showing an unlocked state, a locked state, an overdraw state, a forced lock state, and an ejected state, respectively. l...Deck, 12...Holder, 13...Bottom part, 14...Opening, 29.31...Support arm. Patent applicant: Victor Japan Co., Ltd.

Claims (1)

[Claims] In a tape cassette mounting device comprising a holder into which a tape cassette is inserted and a support mechanism that supports the holder so as to be able to approach and separate from the deck, a portion corresponding to an upper surface of the deck is provided on a bottom surface of the holder. A tape characterized in that a cutout opening is formed, and the upper surface of the deck faces approximately flush with the holder when the holder approaches the deck by the support mechanism. Cassette loading device.