JPS6241314Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to, for example, a video camera incorporating a recording/playback device.

In recent years, the size and weight of portable electrical equipment has become remarkable in all fields.For example, the size and weight of video equipment such as video cameras and VTRs has also been reduced, and video cameras and VTRs have been integrated to make them more compact. Video cameras equipped with a recording and replay function are being developed.

Such integrated cameras with a built-in recording and playback function are often equipped with a grip to ensure a secure hold, as the camera is supported with the hand when taking pictures. When using the device for purposes other than camera photography, i.e. recording from sources other than the camera or using it as a playback device, attaching and detaching the grip is not only unnecessary, but may even impede the safety of the device. It is desirable that the grip be made so that it can be removed from the main body when the grip is not needed.

In addition, in the above-mentioned integrated camera, since recording is mainly performed when shooting, for example, operation keys such as playback keys and special playback keys that are required only during playback and are not operated during recording are mixed together with operation keys necessary for recording. If you do so, there are problems such as the risk of causing erroneous operations and missing recording opportunities. Therefore, there is a strong desire for operation mode control that is less prone to erroneous operation in each usage state.

The present invention was developed with the aim of solving this problem, and includes a grip that can be attached to and detached from the main body, and utilizes the attachment and detachment of this grip to regulate the recording and playback modes. By configuring the grip to enable recording and playback modes when removed from the main body, and restrict playback modes unrelated to recording when the grip is attached to the main body, it prevents erroneous operations in each operating state and improves operability. The present invention provides a video camera equipped with a new recording and playback function with improved reliability.

Hereinafter, specific embodiments of the present invention will be described in detail based on the drawings.

FIG. 1 is a diagram showing the prior art, in which 1 is a built-in video tape recorder (VTR) main body, 2 is each operation mode key of the VTR, 3 is a grip, and 100 is a trigger button. This configuration has the drawback that not only does the key 2 get in the way during recording, but also the grip gets in the way during playback. Furthermore, the playback operation is also troublesome.

2 to 4 are views showing a first embodiment of the present invention, in which the same members as in FIG. 1 are given the same reference numerals. The grip 3 is configured to be detachable from the main body. 4 is a tightening screw for attaching the grip to the camera, 5 and 6 are dowels for positioning, 7
is the grip mounting base, and 8 is built into the grip 3.
The VTR remote control key 10 is a switch for disabling the operation keys used only during VTR playback.

With this configuration, the video camera body 1
When photographing with the grip 3 attached to the camera, the positioning dowel 5 of the grip 3 operates the switch 10 to disable the reproduction key as shown in FIG. Therefore, it is possible to prevent erroneous operation of the VTR during recording.

Here, the switch 10 is as shown in FIG.
Operation mode key 11 required only when playing a VTR
and mode control circuit 1 in the VTR on the video camera side
2 as a gate circuit, and may be, for example, a micro switch.

In addition, as shown in Figure 2, when using a video camera with a built-in VTR as a playback device, the grip 3 can be removed from the camera body and special playback such as slow motion, still, frame advance, and search can be performed using the remote control key 8. In addition to being able to do this using a camera, the camera does not have grip-like protrusions, making it more stable to hold and aesthetically pleasing.

Although not particularly shown in the figure, a known transmitter is built into the grip, and a known receiver is built into the video camera body.

Further, each operation key 8 can be covered with a cover 13 provided on the grip to prevent erroneous operation of the operation keys.

FIG. 5 shows a second embodiment of the present invention. In this embodiment, the grip 3 is removed from the video camera body and the connection cord 9 stored in the grip is extended to connect the video camera body. It is configured to form a signal path with the grip side operation keys.

As described above, according to the video camera equipped with the recording and playback function of the present invention, the grip can be attached and detached from the main body, and the attachment and detachment of the grip is used to playback in recording conditions that require the grip. By restricting completely unnecessary modes such as recording mode, and being configured so that both recording and playback modes can be set when the grip is removed, it is possible to effectively avoid erroneous operations in each operating state, especially erroneous operations during recording. It is possible to significantly improve both operability and reliability.

[Brief explanation of the drawing]

Figure 1 is a diagram for explaining the prior art, Figure 2 is a diagram showing the first embodiment of the present invention, and Figure 3 is a diagram for explaining the prior art.
A block diagram of a circuit for preventing erroneous operation of the operation mode key 2 of a VTR, FIG. 4 is a sectional view showing one embodiment of a grip mounting portion, and FIG. 5 is a diagram showing a second embodiment of the present invention. 1... Video camera body, 2... VTR operation mode keys, 3... Grip, 4... Tightening screw, 8... VTR remote control key, 9... Remote control code, 10... Erroneous operation prevention switch.

Claims (1)

[Scope of utility model registration request] A video camera with an integrated recording and playback device includes a grip that is detachable from the main body, a mode control circuit that sets a plurality of operations including recording and playback modes, and a mode control circuit that operates according to the attachment and detachment of the grip. , a switch means that enables the recording and playback modes of the operating mode control circuit to be selected when the grip is removed from the main body, and prohibits setting of the playback mode of the operating mode control circuit when the grip is attached to the main body; A video camera equipped with a recording and playback function.