JPH0736147U - camera - Google Patents

Abstract

(57) [Summary] [Structure] The camera of the present invention acts on various operating means installed on the camera body, the hanging metal fitting 5 having the opening 52 through which the hanging strap 6 is inserted, and the hanging metal fitting 5. And a load detecting means 7 for detecting a load. The hanging fitting 5 has two parallel elongated holes 54, and screws 55 are inserted into both elongated holes,
It is configured so that it can move in parallel to the camera body. The load detecting means 7 includes a spring 8 for urging the hanging fitting 5 in a direction B opposite to a direction A in which the load acts on the hanging fitting 5, and a spring 8.
And a sensor 9 for detecting that the hanging fitting 5 has moved in the direction of arrow A against the urging force of. When the sensor 9 detects that a load is applied to the hanging metal fitting 5, all or part of the operation by each operating means is not executed. [Effect] It is possible to prevent a malfunction when the camera is suspended and carried.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a camera such as a single-lens reflex camera or a compact camera.

[0002]

[Prior art]

 In cameras such as single-lens reflex cameras and compact cameras, they are hung with a hanging strap and carried around the shoulder or neck.

In such a case, if the power supply (main switch) of the camera is turned on, the operation button, dial, release button or the like is erroneously touched to change the setting of the photographing condition of the camera or the shutter. There is a problem that it may be cut off. If such an erroneous operation occurs, it will interfere with the next shooting, and the film and photographic paper will be wasted.

[0004]

[Problems to be solved by the device]

 An object of the present invention is to provide a camera capable of preventing malfunction when carrying the camera or the like.

[0005]

[Means for Solving the Problems]

 Such an object is achieved by the present invention of the following (1) to (3).

(1) A camera body, an operating means installed on the camera body, a hanging metal fitting having an opening through which a hanging cord can be inserted, and a load detecting means for detecting a load acting on the hanging metal fitting. A camera having a configuration, characterized in that when the load detecting means detects that a load is applied to the hanging fitting, all or part of the operation by the operating means is not executed. And the camera.

(2) The hanging metal fitting is installed so as to be displaceable with respect to the camera body, and the load detecting means moves the hanging metal fitting in a direction having a component opposite to a direction in which a load acts on the hanging metal fitting. The camera according to (1) above, which comprises an urging means for urging the urging means, and a sensor for detecting displacement of the hanging metal member against the urging force of the urging means.

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

[0009]

【Example】

 Hereinafter, the camera of the present invention will be described in detail with reference to the preferred embodiments shown in the accompanying drawings.

In general, when the camera is suspended by a suspension cord, no image is taken. Therefore, the camera of the present invention detects whether or not the camera is in a suspended state, and when the camera is suspended, it is assumed that the camera is not used, that is, the shooting is not performed. Even when it is on, it is related to various camera functions such as release operation, shooting mode setting (selection), function setting, exposure compensation, shutter speed and aperture value setting, and distance range selection. It is designed so that it will not be operated, set, or adjusted.

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

A strobe storage unit 10 and a liquid crystal display unit 11 are formed near the center of the upper portion of the camera body 2, and a release switch 12, adjustment dials 13, 14 and adjustment units are provided on the grip unit 3. A button 15 and a slide-type main switch 16 are installed, and a setting dial 17 is installed on the upper side of the camera body 2 opposite to the grip part 3. The release switch 12, the adjustment dials 13 and 14, the adjustment button 15, the main switch 16, and the setting dial 17 each constitute an operating 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, and a finder 18 is installed on the back side (left side in FIG. 1) of the camera body 2. . The lower side of the finder 17 on the back side of the camera body 2 is covered with a back cover 19 rotatably supported on the side of the grip portion 3. The back cover 19 is opened to load and unload the film.

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

As shown in FIGS. 2 and 3, the hanging metal fitting 5 is preferably made of a metal plate material, and a substantially rectangular shape in which a belt-shaped hanging strap (strap) 6 is inserted into a tip end portion 51 thereof. Is formed with an opening 52. The tip portion 51 is exposed to the outside from the camera body 2. An opening 42 similar to the opening 52 is also formed in the hanging metal fitting 4.

Two parallel elongated holes 54 are formed in the base end portion 53 of the hanging fitting 5, and the hanging fitting 5 is moved in parallel to the camera body 2 by inserting a screw 55 into these elongated holes. It is configured to be movable. In addition, it is preferable that the moving direction substantially coincides with the longitudinal direction of the hanging strap 6, that is, the direction in which the load acts on the hanging fitting 5 (the direction of arrow A). Further, the moving stroke of the hanging metal fitting 5 is adjusted by the length of the long hole 54.

Further, a small hole 56 into which one end of a spring 8 described later is locked is formed in the base end portion 53 of the hanging fitting 5. One end of a spring 8, which is a biasing means described later, is locked in the small hole 56, and the other end of the spring 8 is fixed to the camera body 2 by a pin 81. Further, an L-shaped protruding portion 57 for operating a sensor 9 described later is formed on a side portion of the base end portion 53.

Inside the camera body 2, there is provided a load detecting means 7 for detecting a load acting on the hanging fitting 5 by suspending the camera 1 with a hanging string 6. The load detecting means 7 includes a spring 8 which is a biasing means for urging the hanging fitting 5 in a direction (arrow B direction) opposite to the direction in which the load acts on the hanging fitting 5 (arrow A direction), and a biasing force of the spring 8. The sensor 9 detects that the hanging metal fitting has moved in the direction of arrow A (a mode of displacement) against the force.

The spring constant of the spring 8 is set, for example, to such a value that the hanging fitting 5 can move in the direction of arrow A when a load of about 1/4 to 1/2 of the weight of the camera 1 is applied. There is. The urging direction of the urging means typified by the spring 8 is not limited to the direction opposite to the direction in which the load acts on the hanging metal fitting, but the direction having a component in the opposite direction, that is, the direction of the arrow B, is predetermined. It may be a direction inclined by an angle (less than 90 °).

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

Next, the operation of the load detecting means 7 will be described. As shown in FIG. 2, when the camera 1 is not suspended by the suspending cord 6, the load in the direction of the arrow A does not act on the suspending metal 5, so that the suspending metal 5 is urged by the spring 8 (contraction). Therefore, 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 conductors 92 and 93 are in contact with each other at the contact portion 95, and the terminals 96 and 97 are electrically connected.

As shown in FIG. 3, when the camera 1 is suspended by the suspension cord 6, a load in the direction of the arrow A acts on the suspension metal 5, and the suspension metal 5 resists the urging force of the spring 8 and screws. Move in the direction of arrow A until 55 is locked at the upper end of the long hole 54. As a result, the upper end of the protruding portion 57 contacts the detection head 94 of the sensor 9 and presses it upward. Therefore, the conductor 92 is deformed and separated from the contact portion 95, the terminals 96 and 97 are not electrically connected to each other, and it is detected that the 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 the figure, the camera 1 has a control means 100 in the camera body 2, and to the control means 100, a main switch 16, a setting dial 17, a release switch 12, adjustment dials 13, 14, The adjustment button 15, the display section 11, the shutter driving means 20, the diaphragm driving means 21, the photometric means 22, the distance measuring means 23, the film feeding means 24 and the sensor 9 are electrically connected to each other.

The main switch 16 is a switch for selecting ON / OFF of the power of the camera 1. When a signal indicating that the main switch 16 is turned on is input to the control means 100, the control means 100 controls so that the functions of the respective parts 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 is used to select and set a desired setting item from among three setting items “shooting mode (MODE)”, “drive (DRIVE)” and “film sensitivity (ISO)”, for example. It is a means.

The adjustment dial 13 functions as an up / down switch for raising or lowering the setting item selected and set by the setting dial 17 step by step. Specifically, when the setting item of the setting dial 17 is the shooting mode, for example, when “aperture priority” → “shutter speed priority” → “manual” is adjusted, and the setting item of the setting dial 17 is drive, For example, when the adjustment is made in the order of “single shot” → “continuous shooting” → “self-timer shooting” and the setting item of the setting dial 17 is film sensitivity, for example, in order of “ISO200”, “ISO400”, “ISO800”. Adjusted.

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

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

The photometric unit 22 measures the brightness of the subject by the light receiving element, and the obtained information (photometric information) is input to the control unit 100.

The distance measuring unit 23 measures the distance information from the camera 1 to the subject or the defocus amount with respect to the 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 unit 24 is a unit that winds the film by one frame after photographing.

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

The display unit 11 is usually composed of a liquid crystal display panel (LCD) or the like. In the display unit 11, the contents set and adjusted by the setting dial 17, the adjusting dials 13 and 14, the adjusting button 15, and other items (for example, according to the output signal from the control unit 100) (for example, Date and time) is displayed. Further, it may be configured to display whether or not the load is detected by the sensor 9.

The signals output from the main switch 16, the setting dial 17, 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 operation, setting, and Make adjustments.

The control means 100 is usually composed of a microcomputer, and outputs an operation signal according to the above-mentioned setting and adjustment to a shutter drive means 20, an aperture drive means 21, a photometry means 22, a distance measurement means 23 and a film feeding means. 24, and each of these means is driven as described above. In addition, the control unit 100 also controls various functions of the camera 1 such as sequence control, execution of autofocus, and exposure calculation, as necessary.

Here, when a detection signal (hereinafter referred to as a load detection signal) that the load is applied to the hanging fitting 5 from the sensor 9 is input to the control means 100, the control means 100 causes the main switch 16 and the setting. With respect to all or some of the operating means of the dial 17, the release switch 12, the adjusting dials 13 and 14, and the adjusting button 15, the signals input to the control means 100 are invalidated. That is, all or 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, and the setting dial 17 and the adjustment dials 13 and 14 are not operated. Even if the adjustment button 15 is operated, the setting and adjustment do not change.

Further, when the load detection signal is input, the power may not be turned on even if the main switch 16 is operated. As a result of the power not being turned on, even if the release switch 12, the setting dial 17, the adjusting dials 13 and 14 and the adjusting button 15 are operated, they do not operate.

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

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 that constitutes the load detection means 7 is not limited to that shown in the figure, and for example, the end surface of the protruding portion 57 has conductivity (for example, is configured of conductive rubber), and the detection head 94. When a pair of (+) terminals and (−) terminals are exposed on the contact surface with the protruding portion 57 and the end surface of the protruding portion 57 comes into contact with the detection head 94, both terminals contact the end surface of the protruding portion 57. It may be configured to be electrically connected via. Further, the sensor 9 may be any sensor such as a touch sensor, an optical sensor, a magnetic sensor, a strain gauge, etc., which obtains a signal by changing its electrical characteristics upon contact.

In the above embodiment, the case where the hanging metal fitting 5 moves in parallel has been described as an example of the displacement of the hanging metal fitting 5. However, the present invention is not limited to this, and the hanging metal fitting 5 is centered around a fulcrum, for example. It may be configured to rotate. Further, the suspension fitting 5 may be configured to be able to detect the load application without being substantially displaced. In this case, strain detecting means such as a strain gauge is used as the load detecting means.

Further, the shape of the hanging metal fitting 5 is not limited to the one shown in the drawing, and may be made of, for example, a plate material which is curved or bent (for example, bent into an L shape or a crank shape) as desired. . Furthermore, the type and combination of operations that are not executed when the load acting on the hanging fitting is detected are not limited to those described above. For example, other operations include activation / non-operation of the display unit 11. For example, turning on / off the light.

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

[0044]

[Effect of device]

 As described above, according to the camera of the present invention, when it is detected that a load is applied to the hanging metal fitting, the operation means is configured not to execute the operation. This prevents malfunctions such as accidentally touching the operation buttons, dial, or release button while hanging, and inadvertently changing the settings such as the shooting conditions of the camera or releasing the shutter. .

[Brief description of 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 metal fitting and a load detecting means in the camera of the present invention.

FIG. 3 is a perspective view showing an example of the configuration of a suspension fitting and a load detecting means in the camera of the present invention.

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

[Explanation of symbols]

 1 Camera 2 Camera Body 3 Grip Part 4 Hanging Metal Fitting 42 Opening 5 Hanging Metal Fitting 51 Tip 52 Opening 53 Base End 54 Long Hole 55 Screw 56 Small Hole 57 Projection 6 Hanging Strap 7 Load Detecting Device 8 Spring 81 Pin 9 Sensor 91 Fixing member 92, 93 Conductor 94 Detection head 95 Contact point 96, 97 Terminal 10 Strobe storage section 11 Display section 12 Release switch 13, 14 Adjustment dial 15 Adjustment button 16 Main switch 17 Setting dial 18 Finder 19 Back cover 20 Shutter drive means 21 Aperture driving means 22 Photometric means 23 Distance measuring means 24 Film feeding means 100 Control means

Claims (3)

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