JPS58141476A - Cassette adapter - Google Patents

Abstract

PURPOSE:To prevent the erroneous or wrong insertion of an adapter into a large cassette device, by providing a projecting member which does not permit the adapter to be inserted to a cassette holder of the large cassette device unless subloading in the adapter is completed. CONSTITUTION:A projecting member 5 is projected to the outside in a notch part 13 from an aperture part of the side face of an adapter 1, and the projecting member 5 is charged in the direction of an arrow H by a spring 6 and is detained by a stopper 7. Consequently, the adapter cannot be inserted to the cassette holder of the large cassette device in this state. A lever 3 is brought into contact with the projecting member 5 in course of turning near subloading completion and is turned in the direction of an arrow D, and a cassette is stored from the aperture part of the adapter 1 to the inside at the subloading completion time. Consequently, the adapter 1 can be inserted to the cassette holder of the large cassette device as shown in the second figure, and a tape path 10 constituting tape leading-out aperture parts 12a and 12b for the large cassette device is formed in the adapter 1.

Description

[Detailed Description of the Invention] This is a large/small cassette conversion adapter (hereinafter referred to as the adapter) that is effective for use in devices such as video tape recorders that record or play back signals using magnetic tape.
It is a KM thing.

Currently, the qlK Kojiri Portable V is a magnetic recording brass playback device that uses magnetic tape stored in the KIIiL cassette case.
In TR, the size of cassettes is standardized, and there are limitations to the device's small wrinkles and weight reduction.
Four! The above problems can be solved by making the cassette smaller (hereinafter referred to as a small cassette) without changing the cover, and if you use an adapter that makes it compatible with a regular cassette (hereinafter referred to as a large cassette), you can make it larger. It can also be used with cassette devices.

However, in consideration of tape winding and compatibility with the conventional tension winder mechanism for small cassettes, the supply reel is placed in the same position as the large cassette. The third driving method is effective, but if the tape drawer opening is in the same position and shape as the large cassette, it is impossible to make the cassette wrinkled, and the tape drawer opening of the small cassette is not the same as that of the large cassette. It must be offset with respect to the access port 11.

Therefore, an adapter is required that has a napping mechanism for pulling out the tape from the small cassette's tape pulling opening to the position forming the tape pulling path of the large cassette.

However, if you attach the tape to a large cassette device without sub-loading, there is a risk that the device may not work or that the scissors holder or adapter may be damaged.Additionally, if you attach the tape during sub-loading, there is a risk that the tape may be damaged.

In view of the above points, the present invention is provided with a device 11 that makes it impossible to insert the cassette into the large cassette device until sub-loading within the adapter is completed.

Embodiment t of the present invention/ξ 1st-explained based on drawings
Figure 2 is a plan view of the small cassette installed in the adapter before sub-loading, and the second figure is the state of the adapter from the state shown in Figure 1 to the tape path of the large cassette device. FIG.

In the figure, 1 is an adapter according to the present invention, 2 is a small cassette, 6 and 4 are rotary levers for pulling out the tape, 5 is a spring that biases toward the adapter when sub-loading is not completed, and 7 is a stopper that locks the 501 movement. , 8 is an operating lever that is operated from the outside and interlocks the 11 wIk levers 3 and 4 to am.

11th! When the small cassette is installed in the adapter, the lever 3.4 tape pull-out guide*5m,
4 is located at the tape drawer opening 11m, 11bP3 inside the tape path 9 shaped like mK in the small cassette, and the small cassette is located at the cassette hold Il# (not shown).
1, it is locked in place within the adapter.

At this time, the protruding member 5 is connected to the Confucian mouthpiece II of the adapter 1 (
(not shown), it is centered outward S at the notch 13, is urged in the direction of arrow H by the spring 6, and is locked by the stopper.

Therefore, in this state, the cassette □” of the large cassette device and the tray Holder (not shown) K cannot be inserted.

Next, the operating lever 8 is supported by the elongated hole 8C18-, and the ga
, a bottle 5c mounted on a lever 3.4 which is rotatably supported by a lever 15b in an elongated hole of Qb, and +vc in 4,
4c, and when the scissors lever 8 is operated by an operating portion (not shown) protruding outward in the direction of the arrow, the lever 6.4
are respectively arrow B.

Move in the C direction. At this time, the lever 3 comes into contact with the protruding member 5 in the middle of one movement near the completion of the nub loading, and rotates in the direction of the arrow, and is retracted from the adapter 1 when the inner 11K sub-loading is completed. . Therefore 1.
The adapter is in the second state where it can be inserted into the cassette holder of the large cassette device, and the inside of the adapter 1 (large cassette device tape drawer openings 12m, 12
The tape bus 10 that constitutes b. Incidentally, numeral 14 is a guide for inserting a large cassette.

Next, when sub-loading is canceled, as shown in Figure 2, [When lever 8 is operated in the direction of arrow 1, levers 6 and 4 are moved in the direction of arrow G and ?, respectively. jjHK rotates, and the tape is wound up by a tape winding mechanism (not shown). The protruding member 5 moves in the opposite direction of the arrow as the lever 60 rotates due to the biasing force of the spring tag 6, and is centered out of the adapter 1 through the opening of the adapter 1 into the state shown in FIG.

The lever 8 may be provided with a locking mechanism (crittle, etc.) at each position shown in FIG. 1 and FIG. 142. Further, the lever 8 may be biased by a spring in the direction of arrow E.

As explained above, according to the present invention, with a simple configuration, it is possible to prevent incorrect or unauthorized insertion of an adapter into a device.
This is extremely useful for this device.

In addition, when the adapter is a motor or battery self-selected, %i
Alternatively, the protrusion may be operated by a plunger or the like using a switch instead of mechanical interlocking. In addition, in the embodiment, the I moving bar 3
The operating lever 8 and the protruding member 5 may be interlocked with each other.

[Brief explanation of the drawing]

Figures 1 and 2 are plan views of an embodiment of the present invention.
The figure shows a small cassette inside the adapter! Figure 112 shows a state in which the large cassette cannot be inserted into the large cassette device when the first cassette has arrived and sub-loading has not been performed, or when sub-loading has been canceled. Indicates insertable state. 1...-adapter, 2...small cassette, 6-...-
Moving lever, 5, protruding member, 8, bite/operating lever, 1
0--tape, 1611 notch, 14--device side insertion guide protrusion. Patent applicant Canon Co., Ltd.

Claims (1)

[Claims] IIHc for using a small cassette with a large cassette device. The small cassette tape pull-out opening and the large cassette tape pull-out opening are aligned on the orer, and the large/small cassette conversion adapter performs a subloader that pulls out the tape from the small cassette to the tape position for the large cassette. , a cassette adapter with a protruding member t+gsi that makes it impossible to insert it into the cassette holder of a large cassette device unless the nap loading within the adapter is completed.