JPS5934222Y2 - Sound movie equipment microphone device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a microphone device for sound movie equipment.

In sound movie equipment such as cine cameras, a configuration in which a sound collection microphone is attached to the camera body is becoming common.

In such devices, the microphone element in the microphone sound collection part is made of rubber with high compliance in order to prevent vibrations generated when the camera body is driven from being transmitted to the sound collection microphone through the microphone support and causing noise. A vibration isolation structure is often used in which vibration isolating structures are supported by shock absorbers made of materials such as:

Furthermore, the lead wire for electrical connection from the microphone element to the support body is required to be flexible and thin so as not to transmit vibrations.

For this reason, in conventional microphone devices of this type, accidents have occurred in which the shock absorber or lead wires are broken due to vibrations or shocks applied during transportation before the product reaches the user or when the product is carried while in use.

The purpose of the present invention is to eliminate the drawbacks of the conventional device.When the microphone is not in use and the microphone sound collection section is stored in the microphone storage section, the microphone element is fixed with a clamp member to provide cushioning. It is designed to protect the body and lead wires.

Embodiments of the present invention will be described below with reference to the drawings.

Figure 1 shows sound film equipment such as a cine camera or television camera equipped with the most common microphone device.
2 is a camera body, 2 is a microphone storage section, 3 is a support section, and 4 is a microphone sound collection section.

The support part 3 is generally made of a telescopic multi-stage pipe, such as that known for Rondo antennas, and when used, it is extended to separate the microphone sound collection part from the camera body, preventing camera drive noise from entering the microphone, and preventing noise from entering the microphone. It is designed to improve portability by collapsing it when in use.

FIG. 2 shows the internal structure of a conventional microphone sound collecting section 4, in which a microphone element 5 is held in a suspended state by a holding frame 6 via a buffer body 7 made of a material such as rubber.

8 is a lead wire for transmitting a microphone signal to the recording circuit of the camera body via the support portion 3.

In this configuration, vibrations of the camera are absorbed by the collecting section 2 and the supporting section 3.
However, the sound is absorbed by the buffer provided between the holding frame 6 and the microphone element 5 and is reduced, so that almost no sound is transmitted to the microphone element 5.

Figures 3 and 4 show embodiments of the present invention.
Components that are the same as those in the figures are given the same reference numerals.

FIG. 3 shows a state in which the microphone sound collecting section 4 is pulled out from the storage section 2.

Reference numeral 12 denotes a microphone sound collector base which is fixed to the support part 3 and connects the support part 3 and the holding frame 6, 12a is a groove provided in the peripheral wall of the base, and 9 is pivotally supported by the shaft 10 and is inserted into the groove 12a. A plurality of clamp plates are rotatably provided.

The clamp plate 9 has a clamping protrusion 9as on the inside of the tip and a cam protrusion 9b on the outside.The clamp plate 9 is rotated outwardly by a spring 11 so that the protrusion 9a on the tip is at a position away from the microphone element 5. It has stopped at

At this position, the tip of the cam projection 9b protrudes from the outer periphery of the base body 12.

When the sound collecting section 4 is moved to the right in the figure from this state, the sound collecting section base 12 fits into the housing section 2, resulting in the stored state shown in FIG. 4.

At this time, the cam protrusion 9b is pushed against the inner periphery 2' of the storage portion, and the clamp plate 9 rotates around the shaft 10 to rotate the protrusion 9a at its tip.
engages with the outer periphery of the microphone element 5, and clamps the microphone element 5 by the force of the spring 11.

As a result, vibrations and shocks applied to the microphone device from the outside do not act on the shock absorber 7 and lead wires 8, thereby preventing them from being damaged or damaged.
It is possible to prevent wire breakage.

Furthermore, when using the microphone, the clamp is automatically released by pulling out the sound collecting section 4, and a buffer acts to prevent the camera drive m from being transmitted to the microphone.

This project eliminates the troubles such as damage during carrying or transportation due to the above-mentioned interception, and also provides an extremely practical microphone device that can be put into use without requiring any special operations when used. This is something that can be provided.

[Brief explanation of the drawing]

Fig. 1 is an external view of a sound movie equipment equipped with a general microphone device, Fig. 2 is a cross-sectional view showing a conventional example of the internal structure of the microphone sound collection section, and Fig. 3 is a diagram showing the state of use of the microphone in the embodiment of the present invention. FIG. 4 is a cross-sectional view showing the microphone in a stored state. 1: Camera body, 2: Microphone storage section, 3: Microphone support section, 4: Microphone sound collection section, 5: Microphone element, 6: Holding frame, 7: Buffer body, 8: Lead wire, 9: Clamp member.

Claims (1)

[Scope of utility model registration request] A hollow microphone sound collecting section that holds the microphone element suspended therein through a buffer is provided so as to be able to be displaced between a use position and a storage position, and a movable clamp that is interlocked with the displacement is provided within the sound collecting section. A microphone device for sound movie equipment, characterized in that a microphone element is fixedly held by the clamp member when the member is attached and the microphone sound collecting section is in the storage position.