JP2602358Y2 - camera - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to cameras such as single-lens reflex cameras and compact cameras.

[0002]

2. Description of the Related Art A camera such as a single-lens reflex camera and a compact camera is carried by hanging it with a suspending string and hanging it on a shoulder or a neck.

In such a case, if the power supply (main switch) of the camera is turned on, the user accidentally touches an operation button, a dial, a release button, or the like to change the setting of photographing conditions of the camera or to release the shutter. There is a problem that may be. Then, if such a malfunction occurs, it will hinder the next photographing, and the film and photographic paper will be wasted.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a camera capable of preventing a malfunction when the camera is carried or the like.

[0005]

This and other objects are achieved by the present invention described in (1) to (3) below.

(1) A camera body, operating means installed on the camera body, a hanging bracket having an opening through which a hanging string can be inserted, and load detecting means for detecting a load acting on the hanging bracket. Wherein when the load detecting means detects that a load is acting on the hanging bracket, all or a part of the operation by the operating means is not executed. Camera.

[0007] (2) The hanging bracket is installed so as to be displaceable with respect to the camera body, and the load detecting means moves the hanging bracket in a direction having a component opposite to a direction in which a load acts on the hanging bracket. The camera according to the above (1), comprising an urging means for urging, and a sensor for detecting that the hanging fitting has been displaced against the urging force of the urging means.

(3) The camera according to the above (1) or (2), wherein the operation means operates, sets or adjusts various functions of the camera.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a camera according to the present invention.

Generally, when the camera is suspended by a hanging string, no photographing is performed. Therefore, the camera of the present invention
Detecting whether the camera is suspended or not, when the camera is suspended, a state in which the camera is not used, that is, a state in which shooting is not performed, even if the main switch is on, for example, Do not perform operations, settings, or adjustments related to various camera functions such as release operation, shooting mode setting (selection), function setting, exposure compensation, shutter speed, aperture value, etc., and selection of distance measurement range. It was done.

FIG. 1 is a plan view showing a configuration example of the camera of the present invention, and FIGS. 2 and 3 are perspective views showing configuration examples of the hanging bracket and the load detecting means in the camera of the present invention, respectively. As shown in FIG. 1, the camera 1 of the present invention has a camera body 2 and a grip portion 3 for gripping the camera by hand is formed on one side thereof.

In the vicinity of the center of the upper part of the camera main body 2, a strobe storage part 10 and a display part 11 made of liquid crystal are formed.
Adjustment dials 13 and 14, an adjustment button 15, and a slide-type main switch 16 are provided. A setting dial 17 is provided on an upper portion of the camera body 2 opposite to the grip portion 3. The release switch 12, the adjustment dials 13, 14, the adjustment button 15, the main switch 16, and the setting dial 17 each constitute operation means in the present invention.

A lens (not shown) is mounted on the front side (right side in FIG. 1) of the camera body 2.
A finder 18 is installed on the back side (left side in FIG. 1). The lower part of the finder 17 on the back side of the camera body 2 is covered by a back cover 19 rotatably supported by the side of the grip part 3. This back cover 19
Is opened to load and unload the film.

Hanging fittings 4 and 5 are provided on both sides of the camera body 2, respectively. Among them, the hanging fitting 4 is fixedly installed on the camera body 2, and the hanging fitting 5 is installed movably with respect to the camera body 2.

As shown in FIG. 2 and FIG.
Is preferably made of a metal plate, and its tip 5
1, a substantially rectangular opening 52 into which a band-shaped hanging string (strap) 6 is inserted is formed. This tip 51
Are exposed from the camera body 2 to the outside. Note that an opening 42 similar to the opening 52 is also formed in the suspension fitting 4.

At the base end 53 of the hanging member 5, two parallel long holes 54 are formed. By inserting a screw 55 into these long holes, the hanging member 5 is moved in parallel with respect to the camera body 2. It is configured to be able to. It is preferable that this moving direction substantially coincides with the longitudinal direction of the suspension string 6, that is, the direction in which a load acts on the suspension fitting 5 (the direction of arrow A). Further, the movement stroke of the hanging metal fitting 5 is adjusted by the length of the long hole 54.

Further, a small hole 56 is formed in the base end portion 53 of the hanging member 5 so as to lock one end of a spring 8 described later. One end of a spring 8, which will be described later, is fixed to the small hole 56, and the other end of the spring 8 is fixed to the camera body 2 by a pin 81. An L-shaped protrusion 57 for operating a sensor 9 described later is formed on the side of the base end 53.

In the camera body 2, the camera 1
And a load detecting means 7 for detecting a load acting on the hanging fitting 5 by being suspended by the hanging means. The load detecting means 7 includes a spring 8 which is an urging means for urging the hanging metal in a direction (arrow B direction) opposite to a direction in which a load acts on the hanging metal 5 (arrow A direction), and an attachment of the spring 8. A sensor 9 for detecting that the hanging fitting has moved in the direction of arrow A (one mode of displacement) against the force.

The spring constant of the spring 8 is set to a value such that, for example, when a load of about 1/4 to 1/2 of the weight of the camera 1 is applied, the hanging member 5 can move in the direction of arrow A. I have. Note that the urging direction of the urging means represented by the spring 8 is not limited to the direction opposite to the direction in which a load is applied to the hanging bracket,
A direction having a component in the opposite direction, that is, a direction inclined by a predetermined angle (less than 90 °) with respect to the arrow B direction may be used.

The sensor 9 includes a fixing member 91 for fixing the sensor 9 to the camera body 2, and a pair of conductors 92 and 93.
And a detection head 94 installed at the tip of one conductor 92.
And a contact portion 95 formed at the tip of the other conductor 93.

Next, the operation of the load detecting means 7 will be described. As shown in FIG. 2, when the camera 1 is not hung by the hanging string 6, no load is applied to the hanging metal 5 in the direction of the arrow A, and thus the hanging metal 5 is It is stationary at the lower position in the figure.
In this case, the upper end of the protrusion 57 is separated from the detection head 94 of the sensor 9. Therefore, the two conductors 92 and 93 are in contact at the contact portion 95, and the terminals 96,
97 are conducted.

As shown in FIG. 3, when the camera 1 is hung by the hanging string 6, a load in the direction of arrow A acts on the hanger 5, and the hanger 5 is screwed against the urging force of the spring 8. 55
Move in the direction of arrow A until is locked to the upper end of the long hole 54. As a result, the upper end of the protrusion 57 contacts the detection head 94 of the sensor 9 and presses upward. Therefore, the conductor 92 is deformed and separated from the contact portion 95, and the terminals 96, 97
The continuity is not established, and it is detected that a load is applied to the hanging fitting 5.

FIG. 4 is a block diagram showing a circuit configuration of the camera 1. As shown in FIG. 1, the camera 1 has a control means 100 in the camera body 2, and the control means 100 is provided with a main switch 16, a setting dial 17, a release switch 12, adjustment dials 13, 14, an adjustment button 15, the display unit 11, the shutter driving unit 20, the aperture driving unit 21, the light measuring unit 22, the distance measuring unit 23, the film feeding unit 24, and the sensor 9 are electrically connected.

The main switch 16 is a switch for selecting ON / OFF of the power supply of the camera 1. When a signal to the effect that the main switch 16 is on is input to the control means 100, the control means 100 controls so that the functions of each part of the camera 1 can be operated. In this case, the sensor 9
Is always in operation regardless of whether the main switch 16 is on or off.

The setting dial 17 includes, for example, three setting items “photographing mode (MODE)”, “drive (DRI)”.
VE) ”and“ film sensitivity (ISO) ”.

The adjustment dial 13 is provided with the setting dial 1.
7 functions as an up / down switch for raising or lowering the setting items selected and set step by step. Specifically, setting dial 1
When the setting item 7 is the shooting mode, for example, the adjustment is performed in the order of “aperture priority” → “shutter speed priority” → “manual”. When the setting item of the setting dial 17 is the drive, for example, “single image shooting” → The adjustment is performed in the order of “continuous shooting” → “self-timer shooting”, and when the setting item of the setting dial 17 is film sensitivity, for example, “ISO20
0 "," ISO400 ", and" ISO800 ".

The adjustment dial 14 functions as an up / down switch for selecting and setting, for example, an exposure correction value, a shutter speed, an aperture value, and a distance measurement range.

The adjustment button 15 is, for example, a switch for driving a zoom lens to a wide-angle side and a telephoto side in a camera having a power zoom mechanism.

The photometric means 22 measures the luminance of the subject by means of a light receiving element, and the obtained information (photometric information)
It is input to the control means 100.

The distance measuring means 23 measures distance information from the camera 1 to a subject or a defocus amount with respect to a reference focus position (focus position) in the camera 1 by, for example, an active method or a passive method. The information (distance measurement information) is input to the control means 100.

The film feeding means 24 is a means for winding the film by one frame after photographing.

The release switch 12 is composed of a two-stage switch. When the first stage of the release switch 12 is turned on, the photometric unit 22 and the distance measuring unit 23 are operated, respectively. The aperture is actuated by 21 and the shutter is actuated by the shutter driving means 20 to take a picture. In this case, in order to obtain an appropriate exposure amount, exposure calculation is performed in the calculation unit of the control unit 100 based on photometric information from the photometric unit 22, and the aperture value and the shutter speed are determined based on this.

The display section 11 is usually provided with a liquid crystal display panel (L
CD) and the like. In the display unit 11, the setting dial 17, the adjustment dials 13 and 14, and the adjustment button 1 are set in accordance with an output signal from the control unit 100.
The content set and adjusted in 5 and the like and other items (for example, date and time) are displayed. In addition, a configuration may be employed in which the presence or absence of load detection by the sensor 9 is displayed.

The main switch 16 and the setting dial 1
7. Signals output from the release switch 12, the adjustment dials 13 and 14, and the adjustment button 15 are respectively input to the control means 100, and the operations related to their functions are performed.
Perform settings and adjustments.

The control means 100 is usually constituted by a microcomputer, and sends an operation signal according to the setting and adjustment to the shutter driving means 20, the aperture driving means 21, the light measuring means 22, the distance measuring means 23 and the film feeding means. 24, and each of these means is driven as described above. In addition, the control unit 100 performs control of various functions of the camera 1, such as sequence control, execution of autofocus, and exposure calculation, as needed.

Here, when a detection signal (hereinafter referred to as a load detection signal) indicating that a load is applied to the hanging fitting 5 from the sensor 9 is input to the control means 100, the control means 100
Is related to all or a part of the operation means of the main switch 16, the setting dial 17, the release switch 12, the adjustment dials 13, 14 and the adjustment button 15, and invalidates a signal input to the control means 100 therefrom. . That is, all or a part of the operation by each operation means is not executed.

For example, when the load detection signal is input to the control means 100, the release operation is not performed even if the release switch 12 is pressed, regardless of whether the main switch 16 is on or off.
Even if the user operates the button 4 and the adjustment button 15, the setting and adjustment do not change.

When the load detection signal is input, the power supply can be prevented from being turned on even when the main switch 16 is operated. As a result of the power not being turned on, the release switch 12, the setting dial 17, the adjustment dial 1
When the buttons 3 and 14 and the adjustment button 15 are operated, they do not operate.

Further, when a load detection signal is input while the main switch 16 is on, the power supply can be automatically turned off immediately or after a predetermined time has elapsed. With such a configuration, it is possible to prevent the user from forgetting to turn off the power when the camera is suspended.

Although the embodiment of the present invention has been described above, the present invention is not limited to this. For example, the configuration of the sensor 9 constituting the load detecting means 7 is not limited to the one shown in the drawing. For example, the end face of the projection 57 has conductivity (for example, is made of conductive rubber), and the detection head 94 A pair of (+) and (-) terminals are exposed on the contact surface of the projection 57 with the projection 57, and when the end of the projection 57 contacts the detection head 94, the two terminals pass through the end of the projection 57. It may be configured to be conductive. further,
The sensor 9 may be any sensor, such as a touch sensor, an optical sensor, a magnetic sensor, a strain gauge, or the like, which obtains a signal by changing an electrical characteristic by contact.

Further, in the above embodiment, the case where the hanging fitting 5 is displaced in parallel has been described as an example of the displacement of the hanging fitting 5, but the present invention is not limited to this, and the hanging fitting 5 is turned around the fulcrum, for example. It may be configured to move. Moreover, the structure which can detect the addition of a load, without the suspension metal fitting 5 substantially displacing may be sufficient. In this case, for example, a strain detecting means such as a strain gauge is used as the load detecting means.

The shape of the hanging member 5 is not limited to the shape shown in the figure, but may be, for example, a plate material that is bent or bent as desired (for example, bent into an L shape or a crank shape). . Further, the types and combinations of operations that are not executed when a load acting on the hanging bracket is detected are not limited to those described above. For example, as other operations, the operation / non-operation of the display unit 11 and the light On / off.

Further, in the above embodiment, the load detecting means 7 is provided only on the hanging fitting 5, but the structure in which the load detecting means 7 is provided only on the hanging fitting 4 or the load is applied to both the hanging fittings 4 and 5. A configuration in which a detection unit is provided may be used. In the latter case, when at least one of the load detection units detects the addition of the load, all or a part of the operation by the operation unit may not be executed.

[0044]

As described above, according to the camera of the present invention, the operation of the operating means is not executed when it is detected that a load is applied to the hanging bracket. When the camera is suspended, for example, when the camera is accidentally touched with an operation button, dial, release button, etc. Is prevented.

[Brief description of the drawings]

FIG. 1 is a plan view showing a configuration example of a camera of the present invention.

FIG. 2 is a perspective view showing a configuration example of a hanging bracket and a load detection unit in the camera of the present invention.

FIG. 3 is a perspective view showing a configuration example of a hanging bracket and a load detection unit in the camera of the present invention.

FIG. 4 is a block diagram showing a circuit configuration of the camera of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Camera 2 Camera main body 3 Grip part 4 Hanging fitting 42 Opening 5 Hanging fitting 51 Tip 52 Opening 53 Base end 54 Long hole 55 Screw 56 Small hole 57 Projection 6 Hanging string 7 Load detecting means 8 Spring 81 Pin 9 Sensor 91 Fixing members 92, 93 Conductor 94 Detection head 95 Contact part 96, 97 Terminal 10 Strobe storage unit 11 Display unit 12 Release switch 13, 14 Adjustment dial 15 Adjustment button 16 Main switch 17 Setting dial 18 Viewfinder 19 Back cover 20 Shutter drive means 21 Aperture drive means 22 Photometry means 23 Distance measurement means 24 Film feeding means 100 Control means

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) G03B 17/02 G03B 17/56 G03B 19/00-19/16

Claims (3)

(57) [Scope of request for utility model registration] 1. A camera main body, operating means installed in the camera main body, a hanging metal fitting having an opening through which a hanging string can be inserted, and load detecting means for detecting a load acting on the hanging metal fitting. A camera having a structure such that when the load detecting means detects that a load is acting on the hanging fitting, all or a part of the operation by the operating means is not executed. camera. 2. The suspension fitting is mounted so as to be displaceable with respect to the camera body, and the load detecting means attaches the suspension fitting in a direction having a component in a direction opposite to a direction in which a load acts on the suspension fitting. 2. The camera according to claim 1, further comprising: a biasing unit for biasing, and a sensor for detecting that the hanging fitting is displaced against the biasing force of the biasing unit. 3. The camera according to claim 1, wherein the operation unit operates, sets, or adjusts various functions of the camera.