JPH07336576A - Speaker mounting method and mounting structure in video camera - Google Patents

Abstract

PURPOSE:To prevent the flickering of a reproduced image by mounting a speaker in a floating state to a video camera main body with a video tape for recording/reproducing an object mounted via a buffer device absorbing vibration. CONSTITUTION:A washer 14a of a self-tap screw 14 is pressed into contact with a tip face of a boss 2b to prevent a buffer member 13 from being escaped or dropped from the boss 2b and the buffer member 13 is set in a stable floating state to the inside of a one-side face 2a of a video camera main body 2. Thus, a mount 13a of the buffer member 13 made of an elastomer is not tightened strongly directly by the self-tap screw 14, then the possibility of creep deformation for the use for a long time is precluded and the loosened screw 14 attended with creep deformation is prevented. Since the speaker 12 is mounted in a floating state to the video camera main body with a video tape recording/ reproducing an object mounted therein via a buffer device absorbing vibration, flickering of a reproduced image is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker mounting method and structure in a portable video camera equipped with a video tape for recording and reproducing an object.

[0002]

2. Description of the Related Art Conventionally, a mounting structure of a speaker in a video / audio device has a mounting frame for mounting the speaker frame to a main body of the device, and a mounting portion of the main body of the device from the mounting hole. It is known that a screw, a self-tapping screw, a machine screw, or the like is screwed to fix the speaker to the body of the video / audio device.

[0003]

However, the above-described speaker mounting method is used for recording a videotape.
When applied to a portable video camera for reproduction, there is a problem that the vibration of the speaker causes an adverse effect.

That is, if the user tries to enjoy or chat while watching the image after shooting with the video camera on the spot, the vibration from the audio output part of the speaker propagates directly to the video tape reproducing device of the video camera body. Then, a so-called image shake phenomenon occurs, in which the reproduced image shakes irregularly, which makes it difficult to see.

In order to prevent such image shake due to speaker vibration, it is necessary to block the vibration propagation path so that the speaker vibration does not propagate to the tape running system of the video tape reproducing apparatus.

However, in order to support the tape running system in a state of being floated from the main body of the video camera, the mechanism becomes complicated, and the assembly is troublesome, and the increase in the number of parts increases the weight and increases the size, and It will increase the cost.

As described above, in the conventional portable video camera, there is a problem to be solved in the speaker mounting method and the mounting structure against the problem that the vibration of the speaker causes the inconvenience such as the image blur. There is.

[0008]

In order to solve the above-mentioned problems, the present invention attaches a speaker to a video camera body equipped with a video tape for recording / reproducing an object in a floating state via a shock absorbing means for absorbing vibration. A method for mounting a speaker in a video camera, and a video characterized in that the speaker is indirectly mounted via a cushioning member inside a video camera body equipped with a video tape for recording and reproducing an object. The gist is the speaker mounting structure in the camera.

The cushioning member is provided with a mounting portion to the video camera main body and a speaker supporting portion for supporting the speaker; the speaker supporting portion is a ring-shaped step portion abutting on the outer circumference of the speaker. And an overhanging portion provided at a plurality of locations; the overhanging portion is provided at a position corresponding to the mounting portion; and the cushioning member is formed of an elastomer. is there.

[0010]

According to the method and structure for mounting a speaker in a video camera of the present invention, the speaker is not directly mounted on the video camera body by a mounting screw due to the interposition of a cushioning member, and the vibration of the speaker is propagated through the propagation path. It is cut off in the middle of the process, and it does not propagate to the tape running system and has no adverse effect.

The speaker is floated by the speaker supporting portion of the buffer member and indirectly attached to the video camera body, and the vibration of the speaker is absorbed by the support of only the buffer member.

Moreover, since the speaker is prevented from coming out by the plurality of projecting portions of the cushioning member, the speaker is supported only by the single member of the cushioning member, and no other parts are required.

Further, since the projecting portion is provided at a position corresponding to the mounting portion of the cushioning member, the projecting portion supports the outer periphery of the speaker so as not to fall off or slip out.

When the cushioning member is made of an elastomer, it can be recycled and contributes to the global environment.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a portable video camera 1 will be described in detail with reference to the drawings.

As shown in FIG. 1, the general structure of the video camera 1 is as follows: a video camera main body 2 for recording / reproducing an object with a video tape loaded therein, and a lens portion 3 provided in front of the main body 2. , The sound collecting microphone 4, and the main body 2
A battery 5 that is detachably attached to the rear of the vehicle, and a viewfinder (EVF) 6 that is rotatably attached to display a playback image of a video tape for viewing the image of the subject and to look into it. And a large color liquid crystal display device (hereinafter referred to as LCD) 7 provided on one side surface of the main body 2 so as to be openable and closable.

In addition, a power switch 8 for switching between a photographing mode, a video tape reproducing mode and a power source OFF is provided on the peripheral surface of the lens portion 3, and a video tape loading opening in the upper portion of the main body 2. A loading lid 9 is provided that is open to the outside.

Further, the loading lid 9 is provided with a zoom switch 10 and a playback opening / closing lid 11 which is opened when operating various operation buttons for playing back a video tape.

Then, in the main body 2, the LCD
A speaker 12 is provided inside one side surface 2a on the side where the 7 is opened and closed through a predetermined buffering means.

The one side surface 2a is provided with a plurality of holes 12a penetrating therethrough in an arbitrary arrangement, and the holes 12a are for voice output. In addition, a large number of protrusions 12b, which are both decorative and scratch-proof, are formed in the portion without the holes 12a.

As shown in FIG. 2, the mounting structure of the speaker 12 is such that a speaker mounting boss 2b is provided along a predetermined circumference inside a side surface 2a of a video camera body 2 which is a cabinet made of synthetic resin. Are evenly projected at three locations. The boss 2b is provided with a hole for screwing at the center thereof.

The cushioning member 13, which serves as a cushioning means to which the speaker 12 is attached, is formed in a ring shape as a whole, and a cylindrical attachment portion 13a is provided on the outer periphery of the ring shape at three locations corresponding to the boss 2b. The inner peripheral surface of the ring-shaped portion is formed in the step portion 13c over the entire circumference.
The outer peripheral portion of the speaker 12 is in contact with the speaker supporting portion 13b.

Further, as the speaker supporting portion 13b, a projecting portion 13d protruding toward the inside of the ring is provided in a state of being continuously provided to the mounting portions 13a, and the projecting portion 13d and the above-mentioned projecting portion 13d are provided. The outer peripheral portion of the speaker 12 is sandwiched between and supported by the stepped portion 13c. The cushioning member 13 is made of an elastomer such as silicone rubber or neoprene rubber.

With respect to the buffer member 13 thus constructed, the outer peripheral portion of the front side of the speaker 12 is brought into contact with the stepped portion 13c of the speaker supporting portion 13b, and the protruding portion 13d is attached to the outer peripheral portion of the rear side of the speaker 12. The speaker 12 is prevented from coming off or coming out of the cushioning member 13 by being attached to or brought into contact with.

The cushioning member 13 is attached to the speaker 1
Along with 2, the bosses 2b are fitted into the cylindrical central portion of the mounting portion 13a at three locations, and are mounted inside the one side surface 2a of the video camera body 2.

Thus, the speaker 12 has the stepped portion 13c and the protruding portion 13d in the ring-shaped cushioning member 13.
The speaker support portion 13b composed of and is supported in a floating state with respect to the video camera body 2.

Next, as shown in FIG. 4, a self-tapping screw 14 with a washer is screwed into the central hole of the boss 2b to prevent the buffer member 13 from coming off, and the speaker 12 is directly attached. Instead, they are indirectly attached via the cushioning member 13.

At this time, when the washer 14a of the self-tapping screw 14 comes into contact with the tip surface of the boss 2b,
The buffer member 13 is also prevented from coming off or coming out of the boss 2b by coming into contact with the tip surface of the mounting portion 13a of the buffer member 13, and the buffer member 13 is placed inside the one side surface 2a of the video camera body 2. It is supported in a stable floating state.

The heights of the boss 2b and the mounting portion 13a are set so that they are substantially flush with each other. Then, at least the height of the boss 2b is made slightly higher.

By doing so, since the mounting portion 13a of the cushioning member 13 made of elastomer is not directly strongly tightened by the self-tapping screw 14, there is no fear of creep deformation during long-term use.
Loosening of the screw 14 due to creep deformation is also prevented.

When the speaker 12 is attached to the inside of the one side surface 2a of the video camera body 2, the speaker 12 and the cushioning member 13 are assembled in advance and attached to the video camera body 2 in the above-described embodiment. As another embodiment without being limited thereto, the cushioning member 13 is first placed on the high side surface 2a.
Alternatively, the speaker 12 may be attached to the speaker support portion 13b, and the self-tapping screw 14 with a washer may be screwed to the boss 2b.

When the video camera 1 according to the embodiment of the present invention is used, when a videotape is reproduced on the spot after taking a picture and the image is confirmed on the LCD 7 or a large number of people enjoy the conversation, the speaker 12 can be used. The voice is also output at the same time.

At this time, the vibration of the sound output is blocked by the buffer member 13 and is not propagated to the tape running system. Then, the reproduced image is maintained in a state without image shake, and the image and the sound can be enjoyed in the optimum state.

[0034]

As described above, since the speaker is attached to the video camera main body equipped with the video tape for recording / reproducing the subject in a floating state via the buffering means for absorbing the vibration, the audio output is accompanied. Vibration is blocked by the buffer member and does not propagate to the main body of the video camera, so that there is an excellent effect that the image fluctuation of the reproduced image is prevented and the reproduced image and sound can be enjoyed in an optimum state.

Recording the subject with the speaker mounting structure
Since it is attached indirectly via a cushioning member inside the video camera body equipped with a video tape to be played back, the vibration of the speaker does not directly propagate to the video camera body, and the fluctuation of the reproduced image is prevented. It has an excellent effect that it becomes a speaker mounting structure.

Further, the buffer member is provided with a mounting portion for mounting on the video camera body and a speaker supporting portion for supporting the speaker, and further, the speaker supporting portion is in contact with the outer periphery of the speaker. A ring-shaped step,
Since it is composed of multiple protruding parts, the speaker support part of the cushioning member supports the speaker in a floating state, interrupting the propagation path of vibration due to the audio output of the speaker. It has the excellent effect of being a speaker mounting structure that can be done.

Furthermore, since the projecting portion is provided at a position corresponding to the mounting portion, it is possible to reliably prevent the speaker from falling off or coming off the cushioning member.

Since the buffer member is formed of an elastomer, it has an excellent effect that it can be recycled and contributes to environmental protection.

[Brief description of drawings]

FIG. 1 is a perspective view of a video camera according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a structure in which a speaker is attached to one side surface of the video camera body.

FIG. 3 is a front view of the speaker mounting portion.

FIG. 4 is a vertical sectional view of the speaker mounting portion.

[Explanation of symbols]

 1 video camera, 2 video camera body, 2a one side, 2b boss, 3 lens part, 4 sound collecting microphone, 5 battery, 6 viewfinder, 7 large color liquid crystal display device, 8 power switch, 9 loading lid, 10 zoom switch , 11 playback opening / closing lid, 12 speaker, 12a hole, 13 cushioning member, 13a mounting portion, 13b speaker supporting portion, 13c protruding portion, 14 self-tapping screw, 14a washer.

Claims (6)

[Claims] 1. A method of mounting a speaker in a video camera, wherein a speaker is mounted in a floating state on a video camera body equipped with a video tape for recording / reproducing an object through a shock absorbing means for absorbing vibration. 2. A speaker mounting structure in a video camera, wherein a speaker is indirectly mounted inside a video camera body equipped with a video tape for recording / reproducing an object through a cushioning member. 3. The speaker mounting structure for a video camera according to claim 2, wherein the cushioning member is provided with a mounting portion to the video camera body and a speaker supporting portion to support the speaker. 4. The speaker mounting structure according to claim 3, wherein the speaker support portion includes a ring-shaped step portion that abuts the outer periphery of the speaker, and projecting portions provided at a plurality of locations. 5. The speaker mounting structure according to claim 4, wherein the projecting portion is provided at a position corresponding to the mounting portion. 6. The speaker mounting structure for a video camera according to claim 2, wherein the cushioning member is formed of an elastomer.