JPS5916126A - Video tape recorder device - Google Patents

Abstract

PURPOSE:To make the device compact, by providing a control head on the entrance side of a cylinder. CONSTITUTION:A combination head 18 is provided instead of a conventional full-width erasing head on the entrance side of a cylinder 3, and an audio erasing head and a control head provided conventionally on the exit side of the cylinder 3 are omitted. The combination head 18 consists of an audio erasing head 19 which erases an audio signal and a video and control erasing head 20 which erases a video signal and a control signal, and an erasing head 21 and a control head 22 which can be operated independently of each other are combined. In case of recording of the video signal, both of the audio erasing head 19 and the video and control erasing head 20 of the combination head are operated to perform the same operation as the conventional full-width erasing head; and in case of postrecording, only the audio erasing head 19 of the combination head 18 is operated.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a portable video tape recorder FtK.

Votagle-type video tape recorder device (hereinafter referred to as
■It is abbreviated as ゛1゛几 device. ), efforts have been made to make it smaller and lighter, but there is an unchanging constraint on the size of the cassette back, and there are limits to its size and quantity. Therefore, V '1' R using a small force center back with a -inch width tape.
Development of the device is progressing, but even in this case there are limits in terms of miniaturization, as shown below.

FIG. 1 shows the configuration of a conventional VT)l device, in which 1 is a tape, 2 is a cassette puncture, and 3 is a cylinder having a video head 7. Furthermore, on the inlet side of the cylinder 30, 4 is a fixed post, 5 is a tension post, and 6 is a fixed post.
is the Kanayama erase head, 7 is the impedance roller, 8 is the inlet side vertical post, 9 is the inlet side inclined Boston, on the outlet side of the cylinder 3, IO is the outlet side inclined post, 1j
is the exit side vertical post, 12 is the audio erase head, 1
3 is the control head, 14 is the tension post,
15 is a fixed guide, 16 is a pinch roller, and 17 is a capstan χ.

In such a configuration, when recording a video signal, the tape l ejected from the cassette back 2 is sent to the Kanayama erasing head 6 through the fixed post 4 and the tension post 5, and all trunks in the tape 1, that is, the audio trunk , the video trunk, and the control trunk are erased and sent to the cylinder 3 through the impedance roller 7, the inlet vertical post 8, and the inlet inclined post 9,
A video signal is recorded by the video head (not shown). The tape 1 coming out of the cylinder 3 is sent to the exit side inclined post 10, the exit side vertical boss) 11, the audio erasing head 12, and then to the control head 13, where a control signal is recorded. , the fixed guide 15, the pinch roller 16, and the capstan 17χ are stored in the cassette bag 2.

Well, during dubbing, only the audio erasing head 12 will work.

In such a conventional VI' device, when trying to downsize the cassette back 2 and three cylinders, the problem of tape touching the control head 13 becomes a problem.
This resulted in the loading mechanism becoming more complicated and larger.

An object of the present invention is to provide a very compact VTR device.

In order to achieve such an objective, the present invention is characterized in that the control head is provided on the inlet side of the cylinder.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 2 shows an embodiment of the V'llt device according to the present invention, in which a combination head 18 is provided in place of the Kanayama erasing head 60 on the inlet side of the cylinder 30, and an audio erasing head and an audio erasing head on the outlet side of the cylinder 3 are provided. and control head are omitted.

FIG. 3 shows the configuration of an embodiment of the combination head 18 shown in FIG. 2, which includes an audio erase head 19 for erasing audio signals and a video control erase head for erasing video signals and control signals. Erasing heads 2 that can each work independently
] and a control head 22Y. In such a configuration, when recording a video signal, both the audio erasing head 19 of the combination head 18 and the video control erasing head are operated in the same manner as the conventional Kanayama erasing head, and during post-recording, , only the audio erasing head 19 of the combination head 18 should be activated.

In the above-mentioned example, a case has been described in which a combination henton is provided in which two heads are combined, but separate heads may be provided.

As described above, according to the present invention, by providing the control head on the inlet side of the cylinder, V T l
(, the device χ can be made more compact.

[Brief explanation of drawings]

1 is a block diagram of a conventional VTR device, FIG. 2 is a block diagram of an embodiment of a VTI (device) according to the present invention, and FIG. 3 is a block diagram of an example of the combination head shown in FIG. 1...Tape, 2...Cassette puncture, 3...Cylinder, 18...Combination head, 19...
・Audio erase head, add...video control erase head, n...control head. Patent applicant Clarion Co., Ltd.

Claims (1)

[Claims] 1. In a video tape recorder device in which a tape having a video trunk, an audio trunk, and a control trunk is taken out from a cassette puncture, the video signal is recorded through a cylinder casing, and the tape is stored in the cassette puncture again, the tape is put into the control trunk. A video tape recorder device in which a control head for recording is provided on the inlet side of the cylinder. 2. On the inlet side of the cylinder, a first head for erasing the contents of the audio trunk and a second head for erasing the contents of the video trunk and the control trunk are independently operable and have an erase head and the control head 7. A video tape recorder device according to claim 1, characterized in that a combination head is provided.