JPH0584952U - Camera device - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to adjust the operating resistance of the operating buttons located on the camera body. [Structure] In order to adjust the operation resistance of an operation button (release button) 30 provided in the camera body 2, a spring receiver 32, a spring receiver 32, and an operation button 30.
There is provided an adjusting unit including a return spring 33 interposed between the spring and the spring and an adjusting mechanism for adjusting the distance between the spring receiver 32 and the operation button 30. With this adjusting means, the displacement of the return spring 33 in the compression direction is adjusted by adjusting the distance between the spring receiver 32 and the operation button 30, and the operation resistance is adjusted.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a camera device, and more particularly to a camera device capable of adjusting operation resistance of operation buttons.

[0002]

[Prior Art]

 In general, camera devices such as single-lens reflex cameras and still video cameras are provided with operation buttons for performing various operations, including a release button for operating the shutter drive timing of a shutter mechanism.

As a structure of these operation buttons, a returning member such as a spring is arranged on the back side of the button to be pressed, and a certain operation resistance is generated against the pressing operation of the button. Has been done. For example, with respect to the release button, by giving such a constant operation resistance, it is possible to delicately adjust the pressing force of the finger and start the shutter operation accurately.

However, the operation resistance of the release button is set to almost the same level for products of the same kind, and it is not possible to adjust the resistance force to the pushing operation of the release button for each camera device. It was

On the other hand, the user who uses the camera device has individual differences in the force of his / her finger, and especially the operation resistance of the release button is too large for use by children, old people, women and the like. In such shutter operation by pressing the release button, after pressing the release button, the operation of starting the shooting operation is operated by the delicate movement of the fingertip, so if the operation resistance of the release button is too large or too small, The delicate movement of the fingertip becomes difficult.

Therefore, the user of the camera device must match the operating force of the release button of each camera device with the force of the finger pressing the release button so that the shutter is released at the timing intended by the user. However, there is a drawback in that it takes some time to get used to the release button operation resistance and operate the release button at the correct timing. Furthermore, when using several types of cameras at the same time, the operation resistance of the release button differs depending on which camera is used, so there was the problem that the shutter release timing would be incorrect.

[0007]

[Problems to be solved by the device]

 An object of the present invention is to provide a camera device capable of adjusting operation resistance of operation buttons.

[0008]

[Means for Solving the Problems]

 Such an object is achieved by the following inventions (1) to (4).

(1) A camera device having a camera body and operation buttons provided on the camera body, wherein the camera device is provided with adjusting means for adjusting operation resistance of the operation button.

(2) The adjusting means includes a spring receiver provided on the camera body side, a return spring provided between the spring receiver and the operation button, and providing a return resistance to the operation button. The camera device according to (1), further including an adjusting mechanism for adjusting a distance between the spring receiver and the operation button, and adjusting an operation resistance by the return spring by adjusting the distance.

(3) The camera device according to (1) or (2) above, in which the operating resistance can be adjusted steplessly.

(4) The camera device according to any one of (1) to (3), wherein the operation button is a release button for starting a shooting operation.

[0013]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is an overall perspective view of an electronic still video camera (hereinafter referred to as “still video camera”) 1 that uses a magnetic disk as a magnetic medium. In the camera body 2 of the still video camera 1, a zoom lens, a solid-state image sensor, a disk loading section for loading a magnetic disk, a recording / playback section for recording or playing information on the magnetic disk, a shutter mechanism, a zoom mechanism, A diaphragm mechanism and a battery are stored.

The operation buttons for operating these mechanisms are arranged on the outer surface of the camera body 2, and the arrangement position of each operation button will be briefly described. On the upper side surface of the camera body 2, with the both ends of the camera body 2 supported by the hand and held at the shooting position, 1 or 2 near the position where the tip of the finger of the right hand supporting the camera body 2 is located. The above operation buttons are arranged. For example, a release button 30 as an operation button for starting a shooting operation is provided at the frontmost position, an exposure correction button 4 is provided on the front side thereof, and a position closer to the center of the camera body 2 on the front side thereof. Two zoom operation buttons 51 and 52 for respectively driving the zoom lens to zoom up (telephoto direction) or zoom back (wide direction) via the zoom mechanism are arranged.

Further, a flash selection button 6 for selecting a flash operation is installed from the center thereof. A finder 7 is provided at the right end of the back surface, and a display unit 8 for displaying the number of shots and the like, such as a liquid crystal display, is provided on the left side of the finder. On the left side of the display unit 8, an eject button 9 for taking out the loaded magnetic disk is provided, and on the lower side of the display unit 8, track movement buttons 10a, 10b for instructing the track position of the loaded magnetic disk. However, the shooting mode selection button 11 is on the left side of the track movement buttons 10a, 10b, the main power switch button 12 is on the left side of the shooting mode selection button 11, and the left side of the main power switch button 12 is on the left side. Each battery storage 13 is provided.

These operation unit buttons are electrically connected to each mechanism housed in the camera body 2, and operate each unit of the still video camera 1 by the operation buttons.

The release button 30 is housed in a housing portion 21 formed of a hole formed in the camera body 2. In the camera body 2, a two-stage switch 31 is installed below the housing portion 21. Below the release button 30, adjusting means and a two-step switch 31 are provided.

This adjusting means adjusts the amount of displacement of the return spring 33 of the release button 30 in the compression direction to adjust the operation resistance given to the release button 30 by the return spring 33. Here, the displacement amount in the compression direction is the displacement amount (contraction amount) when the spring is compressed from the entire length of the return spring 33 in the unloaded state.

Hereinafter, the release button 30 and the adjusting means will be described with reference to FIG. The release button 30 has a working portion 304 that acts on the two-step switch 31 to perform a switching operation, and a pressing portion 301 that projects upward from the mounting portion 21. The pressing portion 301 has an inverted bowl shape whose upper surface is formed in a spherical shape, and a flange portion 303 is formed at the outer peripheral end of the lower portion. On the other hand, a step part 211 is formed on the opening peripheral edge of the attachment part 21 and a small diameter part is provided, and the flange part 303 abuts on the step part 211. A rod-shaped action portion 304 is fixed to the center of the inside of the pressing portion 301.

The adjusting means has a spring receiver 32, a return spring 33, and a base body 34. The return spring 33 is inserted between the spring receiver 32 and the release button 30, and the base body 34 is provided below the spring receiver 32. The spring receiver 32 has a disc-shaped operating body 321, and a cylindrical body is provided on the lower side surface of the operating body 321 at a position concentric with the operating body 321.

On the outer peripheral surface of the cylindrical body, a male thread 322 is formed by spirally forming threads. The male screw 322 is screwed into a female screw 341, which will be described later, formed inside the base body 34. By rotating the spring receiver 32 in an arbitrary direction, the spring receiver 32 moves in the axial direction of the screws 322 and 341. As described above, the screwing structure of the male screw 322 and the female screw 341 constitutes an adjusting mechanism for adjusting the distance between the spring receiver 32 and the release button 30.

Further, a cylindrical receiving portion 323 is provided on the upper side surface of the operating body 321, and a receiving surface 324 is formed on the upper surface thereof. The end portion of the return spring 33 contacts the receiving surface 324 and acts as a spring receiver. An insertion hole 325 is formed in the axial direction at a central position of the receiving portion 323 corresponding to the rotation shafts of the screws 322 and 341. The action portion 304 of the release button 30 is inserted into the insertion hole 325.

The receiving portion 323 is inserted into the pressing portion 301 of the release button 30. A return spring 33 is inserted between the pressing portion 301 and the two-step switch 31. One end of the return spring 33 is in contact with the pressing member 34 in the pressing portion 301, and the other end is in contact with the receiving surface 324. The return spring 33 has a large diameter on the pressing portion 301 side, and the coil diameter gradually decreases toward the receiving surface 324 side. With such a configuration, the stroke distance of the return spring 33 in the compression direction is secured, and the return force is secured even when the release button 30 is tilted and pushed.

The release button 33 is constantly urged upward by the return spring 33, the flange portion 303 is pressed against the step portion 211, and the return force of the return spring 33 pushes the release button 30. Acts as a resistance.

Concavities and convexities are formed on the peripheral end portion of the operating body 321 and a part of the operating body 321 projects from the window 22 formed in the camera body 2. By pressing a finger against the protruding portion and sliding the finger in the lateral direction, the operating body 321 can be rotated in an arbitrary direction (horizontal direction). By this rotation operation, the spring receiver 32 moves in the up-down direction in the figure in the camera body 2, and the space between the upper inner surface of the release button 30 and the receiving surface 324 can be adjusted. With such an operation, the receiving portion 323 is inserted into and removed from the pressing portion 301 of the release button 30 and the displacement of the return spring 33, which is interposed between the receiving surface 324 and the pressing portion 301, in the compression direction. Adjust. In other words, the return force of the spring is large in comparison with the amount of displacement (compression distance). Therefore, by adjusting the position of the spring receiver 32 as described above, the return spring 33 applies to the release button 30. The biasing force in the returning direction can be adjusted.

The outer peripheral surface of the receiving portion 323 contacts the inner peripheral surface of the pressing portion 301 to guide the release button 30, and the insertion hole 325 contacts the outer peripheral surface of the operating portion 304 to release the release button 30. Guide 30. Therefore, the release button 30 always acts on the two-step switch 31 at an appropriate angle (right angle), and it is possible to reduce operation mistakes and failures of the two-step switch 31.

The two-step switch 31 is installed in the base 34 on the substrate 311 fixed to the camera body 2 side. Here, the two-stage switch 31 may be a one-stage switch, and any known switch may be used.

The photographing operation is performed by pressing the release button 30 with a finger. When the release button 30 is lightly pressed with a finger, the tip of the action portion 304 comes into contact with the two-step switch 31, and the first-step switch is turned on. When the first-stage switch is turned on, an autofocus operation, a photometric operation, etc. are started. Further, when the release button 30 is pushed all the way in, the second stage switch is turned on and the shooting operation is started. When the finger is released, the release button 30 is returned to its original position by the return spring 33, and the two-stage switches are turned off.

An operation for adjusting the operation resistance of the release button 30 in the above configuration will be described. In order to reduce the operation resistance of the release button 30, press a finger against the operation body 321 protruding from the window 22 formed in the camera body 2 and slide it to the left. By this operation, the spring receiver 32 rotates clockwise with respect to the base body 34, and as shown in FIG. 3, the space between the release button 30 and the spring receiver 32 increases. As a result, the amount of displacement of the return spring 33 in the compression direction is reduced, and the return force is reduced.

In order to increase the operation resistance of the release button 30, a finger is pressed against the protruding operation body 321 and slid to the right, as described above. By this operation, the spring receiver 32 rotates counterclockwise with respect to the base body 34, and the gap between the release button 30 and the spring receiver 32 becomes narrower as shown in FIG. As a result, the amount of displacement of the return spring 33 in the compression direction increases, and the return force increases.

By such an operation, the spring receiver 32 moves up and down in the camera body 2, so that the window 22 from which the operation body 321 of the spring receiver 32 projects can allow the operation body 321 to move up and down. It is configured to the size of a degree. That is, when the operation resistance is set high, the operating body 321 projects above the window 22 as shown in FIG. 1, and when the operation resistance is set small, the operation body 321 of FIG. As described above, the operating body 321 projects below the window 22. Therefore, there is an advantage that the operation resistance of the release button 30 can be grasped to some extent at the position of the operation body 321 in the window 22.

By operating as described above, the operation resistance of the release button 30, that is, the restoring force of the return spring 33 can be arbitrarily adjusted, particularly steplessly. The operation resistance may be adjustable stepwise. Further, the adjusting mechanism is not limited to the movement of the spring receiver 32 by screwing as illustrated.

If the device of the present invention is used for the two-step release button as described above, the operation resistance is too small, so that the drive such as the focus stroke due to the switch-on of the first step is insufficient, and it is temporarily stopped. It is possible to complete a reliable shooting operation without the problem that the second stage switch is turned on.

In the above-described embodiment, the release button 30 has been described as an example. However, for example, other operation buttons such as the zoom operation buttons 51 and 52 for operating the zoom mechanism, particularly an operation section having a relatively high operation frequency. Can also be used for. Further, it may be used as an operation button of another camera device such as another still camera or a video camera.

[0035]

[Effect of the device]

 As described above, according to the camera device of the present invention, since the operation resistance of the operation button can be adjusted, the user of the camera device can adjust the operation resistance that is the easiest to use even from the beginning even when using the camera for the first time. Can be used.

Therefore, it is possible to adjust the operation resistance to the same degree for each camera device used, and for example, in the case of a release button, the shutter can be released at an accurate timing.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a camera device.

FIG. 2 is a sectional view of a release button portion showing a release button adjusting means.

FIG. 3 is a cross-sectional view of a release button portion showing a release button adjusting means in a state where operation resistance is reduced.

FIG. 4 is a partial perspective view of the release button portion of the camera device showing the position of the operating body when the operating resistance is reduced.

[Explanation of symbols]

 1 still video camera 2 camera body 21 mounting part 211 step part 22 window 30 release button 301 pressing part 302 accommodating part 303 flange part 304 working part 31 two-step switch 311 board 32 spring receiver 321 operating body 322 male screw 323 receiving part 324 receiver Surface 325 Insertion hole 33 Return spring 34 Base body 341 Female screw 4 Exposure compensation button 51, 52 Zoom operation button 6 Flash selection button 7 Finder 8 Display section 9 Eject button 10a, b Track movement button 11 Shooting mode selection button 12 Main power switch 13 Battery compartment

Claims (4)

[Scope of utility model registration request] 1. A camera device having a camera body and operation buttons provided on the camera body, wherein the camera device is provided with adjusting means for adjusting an operation resistance of the operation button. 2. The adjusting means includes a spring receiver provided on the camera body side, a return spring provided between the spring receiver and the operation button, and providing a return resistance to the operation button. The camera device according to claim 1, further comprising: an adjusting mechanism that adjusts a distance between the control button and the operation button, the operation resistance being adjusted by the return spring by adjusting the distance. 3. The camera device according to claim 1, wherein the operating resistance can be adjusted steplessly. 4. The camera device according to claim 1, wherein the operation button is a release button for starting a shooting operation.