JPH0132193Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention consists of a viewfinder and a camera section.
The present invention relates to a recording device in which a VTR section is housed in a case, and particularly to a recording device that detects whether or not a tape cassette is loaded during recording operation.

Generally, in a recording device, a camera section and a VTR section are provided separately, and these are connected by a cord to perform a recording operation. Conventionally, in such a recording apparatus, in order to perform recording, the first operation is to load a tape cassette into a cassette loading section of a VTR section. Second, press the record button on the VTR section to set the VTR section to a recordable state. This activates the electronic viewfinder provided in the camera section. Third, the subject was captured while looking through the electronic viewfinder, and recording was performed using a switch in the camera section. Here, if a tape cassette is not loaded in the cassette loading section, the detection section detects that the cassette is not fully loaded and prohibits the operation of the record button of the VTR section, thereby preventing the recording operation from being performed.

Such a recording prohibition mechanism when the tape cassette is loaded at the end is effective when the conventional VTR section and camera section are provided separately and are operated remotely by a cord connection. . but,
In a recording device in which a VTR section and a camera section are integrated into a common casing, it is desirable for convenience of operation that all recording operations be performed using a nearby operation switch. In the recording operation of such a recording apparatus, after loading the cassette, the user looks at the subject while looking through the electronic viewfinder, and starts recording by operating the recording operation switch. However, even when the tape cassette is loaded at the end, the electronic viewfinder operates.
It is difficult to copy the image here and apply the conventional prohibition mechanism to the operation switch, so when you look into the electronic viewfinder and capture the subject to be recorded without noticing that the tape cassette is loaded,
You can press the recording operation switch. As a result, the recording mechanism operates with the tape cassette fully loaded, resulting in no recording being recorded on the cassette tape.

The purpose of this invention is to provide a recording device that easily and reliably prevents recording operations with a tape cassette loaded at the end.

An embodiment of this invention will be described in detail below with reference to the drawings.

As shown in FIG. 1, the recording device 10 has a casing 11, and the casing 11 is equipped with a camera section 14 having a lens 12 at its front part.
At the rear, there is provided a VTR section 20 having a cassette loading section 16 into which a tape cassette 32 is loaded, a detection section 18 for detecting the loading of the tape cassette, and a VTR mechanical section 30 for operating the VTR.
Furthermore, a recording operation switch 24 is provided on the grip 22 located at the lower part of the casing 11. A battery 26 is provided separately from the casing 11. Furthermore, casing 1
1 includes a logic control device 28 electrically connected to the mechanical section 30, operation switch 24, and detection section 18 of the VTR section 20.

FIG. 3 shows the state before a tape cassette is loaded into the cassette loading section 16. A recess 36 is formed in the cassette loading section 16.
On one side is the recording head (not shown) during recording operation.
It has an opening 37 into which is inserted. This recess 3
A case 38 is rotatably provided in the casing 11 and has an opening 35 on one side so that the tape cassette 32 can be inserted into the tape cassette 32 from the back 31 (shown in FIG. 2). That is, the case 38 is rotated via the hinge 33 between the other side thereof and the casing so that the opening 35 of the case 38 comes out of the recess from the recess 36 for loading the tape cassette. This case 38 and recess 3
6, when the tape cassette 32 is inserted,
Apertures 40 and 56 are respectively provided so as to face anti-erasure tabs 34 (shown in FIG. 2) provided on the back surface of the tape cassette. A spring plate 39 is provided on the lower surface of the upper plate inside the case 38 for urging the tape cassette downward and elastically holding it within the case. On the other hand, the detection section 18 is disposed facing the other side of the recess 36 . A double micro switch 50 is provided within the detection section 18 . A battery 26, an electronic viewfinder 21, and a logic control device 28 are electrically connected to this two-stage microswitch 50. In other words, this two-way microswitch has a first switch part 58 in which the electronic viewfinder 21 and battery 26 are connected to turn the switch ON, and disconnected to turn the switch OFF, and a logic switch at the same time. The second switch is connected to the ground to send a signal to the control device 28 and is turned on, and the second switch is disconnected from the ground and turned off.
A switch section 60 is provided. In addition, the logic control device includes an operation switch 24 and a VTR.
It is connected to the mechanical section 30 of the section to control each operation. An arm 46 is provided between the double micro switch 50 and the recess 36. One end of this arm 46 is rotatably supported by a pin 44 to a protrusion 42 extending downward from the bottom of the recess, and extends between the side of the recess and the double micro switch 50. It is rotatable.
The other end of the arm 46 is provided with a protrusion 48 so as to penetrate through the aperture 40 formed in the case 38 and the aperture 56 formed in the wall forming the recess. Behind the arm 46, the arm 46
A spring plate 52 is disposed so as to press the concave portion 36 in the direction of the concave portion 36, and this spring plate 52 is attached to a two-unit micro switch 50. The microswitch 50 is provided with a protrusion 54, and the back of the arm 46 faces this protrusion 54 with a spring plate 52 in between.

Therefore, as shown in FIG. 3, if the case 38 is pushed down so as to fit into the recess 36 without any tape cassette being loaded into the cassette loading case 38, the cassette loading section will be loaded with the tape cassette at the end. be done. At this time, the protrusion 48 of the arm 46 passes through the hole 40 of the case 38,
The arm 46 is pressed by the spring plate 52 and does not rotate while remaining in contact with the wall of the recess, and the protrusion 5 of the switch 50
Since 4 is not pressed, it is a two-way micro switch 5.
0 remains OFF. And in this state,
The first switch section 58 of the two-channel micro switch 50 connects the battery 26 and the electronic viewer 21.
remains electrically disconnected from the At the same time, the second switch section 60 connects the ground 61 of the logic control device 28 and sends a signal to the logic control device to load the last tape cassette.

When the tape cassette is inserted into the cassette loading case 38 from its back 31 and the case 38 is pushed down so as to fit into the recess 36, the tape cassette is loaded in the cassette loading section.

At this time, as shown in FIG. 4, if the tape cassette has a tab 34 for erasure prevention (if erasure prevention is not provided), the protrusion 48 of the arm 46
is pushed in the direction of the double-barreled micro switch 50 by this claw 34. Then, the arm 46 rotates against the spring plate 52 and presses the protrusion 54 of the two-stage microswitch 50, turning the two-stage microswitch 50 into the ON state. At this time,
The first switch section 58 electrically connects the battery 26 and the electronic viewfinder 21 to operate the electronic viewfinder. At the same time, the second contact piece 6
0 is the ground 61 of the logic control device 28
Disconnect the logic control device 28.
A signal indicating completion of tape cassette loading is sent to the tape cassette.

On the other hand, as shown in FIG. 5, when the erasure prevention tab is removed from the tape cassette, the protrusion 48 of the arm 46 fits into the hole formed when the tab 34 is removed. Therefore, arm 4
6 has no force acting against the spring plate 52, and the double micro switch 50 is turned OFF as in FIG.
maintain the condition.

As a result, recording operations when the tape cassette is loaded at the end, or when a tape cassette without the erasure prevention tab 34 is loaded, can be easily understood by the presence or absence of the image on the electronic viewfinder, and can be easily recognized by the logic. The actuation of the operation switch is controlled by the switch control device, and this can be reliably prevented.

The operation switch and logic control device described in the above embodiment are not limited to being provided within the casing, but the same effect can be obtained even if they are attached to the casing or provided separately from the casing. Furthermore, the viewfinder and battery are not limited to being attached to the casing or provided separately from the casing, and the same effect can be obtained even if they are housed within the casing.

Furthermore, in the embodiment described above, the detection section was located outside the recess formed in the cassette loading section.
However, the present invention is not limited to this, and a sufficient effect can be obtained even if it is located inside the recess formed in the cassette loading section. In this case, for example, a photoelectric switch or a pressure-sensitive switch is used. Furthermore, in order to detect the loading of a tape cassette, this detection section is not limited to being installed at a position where the claw on the back of the tape cassette is detected as shown in the above-mentioned embodiment; A sufficient effect can be obtained even if the sensor is positioned so as to detect other sides, top or bottom surfaces of the tape cassette, or corners of the tape cassette.

Therefore, this invention can reliably prevent the recording operation from being performed with the tape cassette loaded at the end when using a recording device in which the camera section, VTR section, and viewfinder are housed in a case.

Note that this invention is not limited to the one embodiment described above, and the scope of this invention is not limited as described in the purpose of this invention and the scope of the attached utility model registration claims.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram of a recording device according to the present invention in which a camera section, a VTR section, and an electronic viewfinder are housed in a casing, Fig. 2 is a perspective view of a tape cassette, and Fig. 3 is a cassette with no tape cassette loaded. FIG. 4 is a diagram showing a cassette loading section and a detection section loaded with a tape cassette having a tab, and FIG. 5 is a diagram showing a cassette loaded with a tape cassette without a tab. It is a figure showing a loading part and a detection part. 11...Casing, 14...Camera section, 16
...Cassette loading section, 18...Detection section, 20...
VTR section, 21...Electronic viewfinder.

Claims (1)

[Claims for Utility Model Registration] 1. A casing and a device housed within the casing that has a recording function to a tape cassette.
A camera section that photographs the VTR section and the subject, a viewfinder that displays the image of the subject to be recorded on the VTR section when photographing the subject, and a camera section that detects whether or not a tape cassette is loaded into the VTR section, and detects whether or not a tape cassette is loaded into the VTR section. The recording device is characterized in that it is equipped with a detection unit that allows the video to be projected on the viewfinder when the cassette is loaded, and prohibits the video from being projected on the viewfinder when the cassette is loaded. 2 The detection unit detects the presence or absence of an erasure prevention tab provided on the tape cassette, and if the tape cassette has a tab, allows the image to be projected on the viewfinder, and if the tape cassette tab is The recording device according to claim 1, which is a utility model, and is characterized in that, if there is no image, the video is prohibited from being displayed on the viewfinder.