JPS6226876Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a videotape deck.

Various improvements have been made to video equipment in order to make video decks, video cassettes, etc. smaller and lighter, making them more convenient to carry and easier to operate. Against this background, video decks and video cassettes in the VHS and β (beta format) formats are now mainstream, but recently, even smaller and lighter video equipment has been developed, and they are now in practical use. It is being used for However, the video deck of such a small and lightweight video device has the problem that it is difficult to use any video cassette other than a dedicated small cassette, and compatibility with various video cassettes is low.

This invention was made based on the above background, and its purpose is to provide a main deck for storing the first cassette, and an adapter deck equipped with a roller for feeding the tape of the second cassette to the main deck. To provide a videotape deck which has improved compatibility with videocassettes by being provided in a detachable manner.

This invention will be explained below with reference to the drawings.

1 to 5 show an embodiment of the videotape deck of this invention, in which reference numeral 1 is a main deck having a rotating cylinder 2, and reference numeral 3 is an adapter deck. It is detachably attached to the main deck 1.

The main deck 1 has a supply reel shaft 4 fitted into the supply reel housed in the first cassette A, a take-up reel shaft 5 fitted into the take-up reel housed in the first cassette A, and a take-up reel shaft 5 fitted into the take-up reel housed in the first cassette A. Loading guide rollers 6, 6 that bring the tape (not shown) wound between the supply reel and take-up reel of the first cassette A into contact with the rotating cylinder 2, and a loading guide roller 6 provided near the loading guide roller 6. Fixed rollers 7, 7 for loading, a take-up reel stand 8 which is attached to the take-up reel shaft 5 and has teeth formed at regular intervals on its outer periphery, and this take-up reel stand 8.
Take-up reel gear 9 that meshes with this gear 9
a winding-side transmission gear 10 that meshes with the supply reel 4; a supply reel base 11 that is attached to the supply reel 4 and has teeth formed at regular intervals on its outer periphery; It is mainly composed of a back tension member 12 and a supply side transmission gear 13 that meshes with the supply reel stand 11.The first cassette A is attached to the main deck 1, and the supply reel shaft 4 and the take-up reel shaft are connected to each other. 5 allows the tape contained in the first cassette A to run.

Further, the adapter deck 3 includes a supply reel shaft 14 that is fitted into a supply reel housed in a second cassette B that is different from the first cassette A, and a supply reel shaft 14 that is attached to the supply reel shaft 14 and has a constant shape on the outer periphery of the supply reel shaft 14. A supply reel stand 15 having teeth formed at intervals, a rotating gear 25 that meshes with the supply reel stand 15, and a supply side drive gear 1 that meshes with the rotating gear 25 and is attached to one side 3a of the adapter deck 3.
6, a take-up reel shaft 17 to be fitted into the take-up reel contained in the second cassette B, and the take-up reel shaft 1
a take-up reel stand 18 attached to 7 and having teeth formed at regular intervals on its outer periphery;
A take-up side drive gear 19 that engages with this take-up reel stand 18 and is attached to one side 3a of the adapter deck 3, and a preload fixing provided between this take-up side transmission gear 19 and the supply side drive gear 16. rollers 20, 20
and preload guide rollers 21, 21 for transporting the tape C wound between the supply reel and take-up reel of the second cassette B to the load guide rollers 6, 6 of the main deck 1, and the adapter deck 3. A locking member 23 is attached to one side and locks to a locking piece 22 provided at the lower part of the main deck 1, and the adapter deck 3 is connected to the locking piece 22 of the main deck 1. The adapter deck 3 can be attached to the main deck 1 by hooking the stopper member 23, and when the adapter deck 3 is attached to the main deck 1, the take-up side transmission gear 10 and the take-up side drive gear are connected. 19, and the supply side transmission gear 13 and supply side drive gear 16 are adapted to mesh with each other. On the other hand, the loading guide rollers 6, 6 are capable of being raised and lowered, and their height changes in the vertical direction (horizontal direction in FIG. 4), similar to a conventional video deck.

Next, the operation of one embodiment of the videotape deck of this invention constructed as described above will be explained.

The first videotape deck related to this invention
To use cassette A, attach the first cassette A to the main deck 1 as shown by the two-dot chain line in FIG.
The tape in cassette A is brought into contact with the rotating cylinder 2, and then the supply reel shaft 4 or the take-up reel shaft 5 is brought into contact with the tape.
Rotate to run the tape.

When it becomes necessary to use a second cassette B different from the first cassette A, the adapter deck 3 is attached to the main deck 1, and the second cassette B is set on the adapter deck 3. (At this time, remove the first cassette A from the main deck 1.) In this state, a part of the tape C of the second cassette B is transferred to the preload fixed roller 2 as shown in FIG.
0 and the preload guide roller 21. Then, the preloading guide rollers 21, 21 are moved to between the loading guide roller 6 of the main deck 1 and the rotary cylinder 2. At this time, the tape C is pulled out from the second cassette B and is located between the loading guide roller 6 and the rotating cylinder 2 together with the preloading guide rollers 21, 21. At this time, the loading guide rollers 6, 6 have fallen down and do not pose an obstacle to the movement of the tape C.

Subsequently, the loading guide rollers 6, 6 are raised and moved to bring the tape C into contact with the rotating cylinder 2, and the supply reel shaft 4 or the take-up reel shaft 5 is moved.
Rotate. Then, the rotation of the supply reel shaft 4 is
The rotation of the take-up reel shaft 5 is transmitted to the supply reel shaft 14 via the supply reel stand 11, the supply side transmission gear 13, the supply side drive gear 16, and the supply reel stand 15, and the rotation of the take-up reel shaft 5 is transmitted to the take-up reel stand 8 and the take-up reel gear. 9, the take-up side transmission gear 10, the take-up side drive gear 19, and the take-up reel stand 18 to the take-up reel shaft 17, and the supply reel shaft 14
The take-up reel shaft 17 runs the tape C.

FIG. 6 shows another embodiment of the videotape deck of this invention. In this example, a protrusion 30 is formed in the center of one side 3a of the adapter deck 3, and the tip of the protrusion 30 is Preloading guide rollers 21, 21 are provided on both sides of 30a, and by attaching the adapter deck 3 to the main deck 1, the tape C between the preloading guide rollers 21, 21 rotates with the loading guide rollers 6, 6 of the main deck 1. It is arranged to be located between cylinders 2. The rest of the structure is the same as that of the embodiment described above, and the above structure achieves the same effect as that of the embodiment described above.

In the above embodiment, in order to drive the supply reel shaft 14 and take-up reel shaft 17 of the adapter deck 3, the take-up side transmission gear 1 is provided on the main deck 1 and the adapter deck 3.
0, a supply side transmission gear 13, a supply side drive gear 16, a take-up side drive gear 19, and a rotating gear 25 are respectively provided, but these are omitted and a new drive motor (not shown) is attached to the adapter deck 3, The supply reel shaft 14 or the take-up reel shaft 17 may be rotationally driven directly or indirectly by this drive motor.
Further, the means for locking the main deck 1 and the adapter deck 3 are not limited to the locking piece 22 and the locking member 23 of the above-mentioned embodiments, but may also use a generally known locking means such as a buckle or a locking metal fitting. . Furthermore, a mechanism for moving the loading guide roller 6 of the main deck 1 (in other words, a loading mechanism of a generally known video deck)
is the parallel loading mechanism in the VHS system, the U loading mechanism in the β system, or
Various mechanisms such as the tape threading mechanism in the VCR system can be applied. Furthermore, the width of the tape in the first cassette A and the width of the tape C in the second cassette B are generally the same size, and the widths are 2 inches, 1 inch, 3/4 inch, and 1/2 inch. inch,
A variety of video tapes, such as 1/4 inch, can be used with the deck of this invention.

As explained above, the videotape deck of this invention has a take-up reel shaft and a supply reel shaft into which the first cassette is inserted, as well as loading guide rollers that bring the tape of the first cassette into contact with the rotating cylinder. An adapter deck having a supply reel shaft and a take-up reel shaft for inserting a different type of second cassette into the main deck, and a preloading guide roller for transferring the tape of the second cassette to the main deck side. Since it is detachably attached, by running the tape of the second cassette, which is different from the first cassette, through the adapter deck, the tape of the second cassette can be transferred to the main deck in the same way as the tape of the first cassette. It can be used for recording, playback, etc.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram showing an embodiment of the videotape deck of this invention, Fig. 2 is a schematic diagram showing the main parts of the same example with an adapter deck attached to the main deck, and Fig. 3 shows the same state. A schematic diagram, FIG. 4 is a schematic diagram showing a fallen state of the loading guide roller of the same example,
FIG. 5 is a simplified side view of FIG. 3, and FIG. 6 is a schematic diagram showing another embodiment of the same tape deck. 1... Main deck, 2... Rotating cylinder, 3...
Adapter deck, A...first cassette, 4...supply reel shaft, 5...take-up reel shaft, 6...loading guide roller, B...second cassette, 14...
...Supply reel shaft, 17...Take-up reel shaft, C...Tape, 21...Preload guide roller.

Claims (1)

[Scope of utility model registration request] A supply reel shaft fitted into the supply reel housed in the first cassette, a take-up reel shaft fitted into the take-up reel housed in the first cassette, and the supply reel and take-up reel of the first cassette. A main deck equipped with a loading guide roller that brings the tape wound therebetween into contact with a rotating cylinder, a supply reel shaft that is inserted into a supply reel housed in a second cassette of a different type, and a supply reel shaft that is housed in the second cassette. an adapter deck comprising: a take-up reel shaft that is inserted into the take-up reel of the second cassette; and a preload guide roller that transfers the tape wound between the supply reel of the second cassette and the take-up reel to the main deck side. A videotape deck is characterized in that it is detachably attached.