JPH0876226A - Information related equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a camera that allows an operator to identify the open / closed state of a shielding door. [Structure] Shield door 6 for opening and closing the entrance 60 of the film F
In the camera in which the film cartridge 6 to which 1 is attached can be loaded, the detection switches SW1 and SW2 for detecting the open / closed state of the shielding door 61, and when the opened state of the shielding door 61 is detected and when the shielding door 61 is closed. An instruction device 13 that changes the instruction content to the operator when the state is detected,
16 and 16 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information-related device such as a camera for giving a specific instruction to an operator in association with the state of a film cartridge.

[0002]

2. Description of the Related Art There is known a camera which detects completion of a film rewinding operation to a film cartridge and informs an operator by a liquid crystal display or the like. Conventionally, the operator has determined whether or not the cartridge may be taken out of the camera by checking whether or not the rewind completion is displayed.

[0003]

However, in the cartridge having the opening / closing shield door at the entrance / exit of the film,
If the shielding door is open, the light shielding inside the cartridge is not sufficient, and thus it is not possible to determine whether or not the cartridge can be taken out unless the opening / closing state of the shielding door is known. Further, since the above-mentioned cartridge is loaded in the camera with the film completely housed therein and the shielding door closed, the shielding door is opened at the initial feeding of the film and the film is fed from the cartridge side to the spool chamber side. There is a need. in this case,
If the film feeding is started with the shielding door closed, the film may come into contact with the shielding door and cause an unexpected trouble such as jamming.

Further, the conventional film rewinding completion display of the camera displays a schematic view of whether or not the film is taken out from the film cartridge, or a character indicating the absence of the film by the film counter (for example, the English character "E"). Is only displayed. For this reason, it is difficult for an operator unfamiliar with the camera to judge whether or not the film cartridge can be taken out only by the display, and there is a risk that the opening / closing lid (for example, the back lid) for attaching / detaching the film cartridge is accidentally opened. is there.

An object of the present invention is to provide an information-related device such as a camera that allows an operator to identify the open / closed state of a shielding door.
Another object of the present invention is to provide a camera that allows an operator to directly identify whether or not the film cartridge can be taken out.

[0006]

1 to 3 showing one embodiment, the invention of claim 1 is a film cartridge provided with a shielding door 61 for opening and closing a port 60 of a film F. The present invention is applied to an information-related device that can be loaded with 6 and at least one of recording information on the film F fed from the film cartridge 6 and reading information from the film F. Then, the detection means SW1, SW2 for detecting the open / closed state of the shielding door 61.
And when the open state of the shield door 61 is detected and when the shield door 61 is detected.
The above-mentioned object is achieved by providing the instruction means 13 and 16 for changing the instruction content to the operator when the closed state of is detected. The invention according to claim 2 is applied to the information-related device according to claim 1, and the display content is visually changed when the open state of the shielding door 61 is detected and when the closed state of the shielding door 61 is detected. The indicator 5 is provided in the instruction means 13 and 16. The invention according to claim 3 is applied to the information-related device according to claim 1, and the indicating means 13 and 16 provide the operator with the film cartridge 6 when the closed state of the shielding door 61 is detected.
Indicates that the film cartridge 6 can be taken out of the apparatus, and when the open state of the shielding door 61 is detected, the operator is instructed that the film cartridge 6 cannot be taken out of the apparatus. . The invention according to claim 4 is applied to the information-related device according to claim 1, and the indicating means 13 and 16 make a state in which the film F can be fed to the operator when the open state of the shielding door 61 is detected. Instructing that there is a shield door 61
When the closed state is detected, the operator is instructed that the film F cannot be fed. Claim 5
The invention is applied to a camera provided with a cartridge chamber 7 into which the film cartridge 6 is loaded and an opening / closing lid 8 for opening / closing the cartridge chamber 7, and whether or not the film cartridge 6 can be taken out of the camera. When it is detected that the detecting means SW1 and SW2 for detecting the state and the film cartridge 6 can be taken out of the camera, the operator of the camera is instructed that the opening / closing lid 8 is openable, When it is detected that the film cartridge 6 cannot be taken out of the camera, it is provided with the instruction means 13 and 16 for instructing the operator that the opening / closing lid 8 is in the opening prohibition state. Achieve the purpose. The invention of claim 6 is applied to the camera of claim 5, the film cartridge 6 is provided with a shielding door 61 for opening and closing the entrance 60 of the film F, and the detecting means SW1, SW2.
Detects the open / closed state of the shielding door 61 and indicates the indicating means 13, 16
Indicates to the operator that the opening / closing lid 8 can be opened when the closed state of the shielding door 61 is detected, and instructs the operator when the opened state of the shielding door 61 is detected. It is instructed that the opening / closing lid 8 is in the open prohibition state. The invention of claim 7 is applied to the camera of claim 5, and directing means 13, 1
6 includes a display 5 that visually indicates whether the opening / closing lid 8 is in the openable state or the openable state.

[0007]

According to the first aspect of the invention, the open / closed state of the shielding door 61 is detected by the detection means SW1 and SW2, and the instruction contents of the instruction means 13 and 16 to the operator of the apparatus are changed according to the detection result. Therefore, the open / closed state of the shielding door 61 can be identified by the instruction contents of the instruction means 13 and 16. Claim 2
In the invention described above, the display content of the display 5 visually changes according to the open / close state of the shielding door 61. According to the third aspect of the invention, the film cartridge 6 is opened or closed depending on whether the shielding door 61 is open or closed.
Is instructed to be taken out of the device or in a state where it cannot be taken out. In the invention of claim 4, according to the open / close state of the shielding door 61, it is instructed whether the film F can be fed or cannot be fed.
According to the fifth aspect of the invention, the detection means SW determines whether or not the film cartridge 6 can be taken out of the camera.
1, SW2 is detected, and the opening / closing lid 8 is detected according to the detection result.
The operator of the camera is directly instructed whether the camera is in the openable state or the openable state. According to the invention of claim 6, the operator of the camera is directly instructed whether the opening / closing lid 8 is in the openable state or the open prohibited state according to the open / close state of the shielding door 61 of the film cartridge 6. It According to the invention of claim 7, the display 5 visually indicates whether the opening / closing lid 8 is in the openable state or the openable state.

Incidentally, in the section of means and action for solving the above-mentioned problems for explaining the constitution of the present invention, the drawings of the embodiments are used to make the present invention easy to understand. It is not limited to.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a camera will be described below with reference to FIGS. 2 and 3 show the appearance of the camera of this embodiment, 1 is a cover that defines the appearance of the camera, and 2 is a lens barrel. Upper surface 1a of cover 1
On the left side (the left and right are defined based on the state viewed from the lens barrel side), the release button 3 and the film initial feed button 4
Is arranged, and the liquid crystal display panel 5 is arranged on the right side. The film initial feed button 4 is the initial film feed operation (the operation of feeding the film from the film cartridge).
Is operated to launch. The display pattern of the liquid crystal display panel 5 will be described later.

As shown in FIG. 3, a film cartridge (hereinafter abbreviated as a cartridge) is provided inside the camera.
The cartridge chamber 7 in which 6 is loaded is the bottom surface 1b of the cover 1.
It is provided by opening. An opening / closing lid 8 that can be opened / closed around a hinge (not shown) is provided on the opening 7a of the cartridge chamber 7, and an opening / closing knob 9 that can be slid is arranged near the opening 7a. Open and close the lid 8
When it is pushed to a position where it closes, the opening / closing lid 8 is fixed at that position by a lock mechanism (not shown), and the cartridge chamber 7 is shielded from the outside of the camera. When the open / close lid 8 is closed and the open / close knob 9 is slid, the fixing of the open / close lid 8 by the above-described lock mechanism is released, and the open / close lid 8 is opened to the position shown in the drawing to open the cartridge chamber 7.

As shown in detail in FIG. 1, the cartridge 6 of this embodiment is provided with a shielding door 61 for opening and closing the entrance / exit 60 of the film F, and the film F is completely accommodated inside and the shielding door 61. It is designed to be attached to and detached from the camera in the closed state. Therefore, as shown in FIG. 3, the opening 7a of the cartridge chamber 7 is formed slightly larger than the sectional shape of the cartridge 6. That is, in a conventional camera (so-called drop-loading camera) in which the cartridge is dropped from the bottom side of the camera into the cartridge chamber, in addition to the insertion / removal opening of the cartridge, an insertion / removal opening of the leading end (leader section) of the film pulled out from the cartridge is provided. However, in the camera of this embodiment, there is no such insertion / removal opening of the film front end portion, and only the insertion / removal opening of the cartridge is provided. For this reason,
The opening / closing lid 8 is downsized and the degree of freedom in designing the camera is increased. Even if the opening / closing lid 8 is opened while the film is being sent out from the cartridge 6, the opening 7a is small and exposure damage to the film is minimal. You can stop as much as you can. However, if the cartridge 6 is to be taken out while the film is still being fed, the opening 7a is small and the film is more likely to be damaged. Even if the film is completely contained in the cartridge 6, if the shielding door 61 is left open, light leaks into the interior. Therefore, the shielding door 61 must be closed before the cartridge 6 is pulled out.

FIG. 4 shows a display pattern of the liquid crystal display panel 5. FIG. 4A is an example in which segments 51a and 51b corresponding to the open position and the closed position of the shielding door 61 are attached to a figure 50 that is a schematic view of the cartridge 6.
In this example, the open state and the closed state of the shielding door 61 can be directly instructed by turning on one of the segments 51a and 51b. FIG. 4 (b) shows that the letters "LO" mean that the film can be fed (winding, rewinding).
This is an example in which a segment 52a for displaying "AD / REW OK" and a segment 52b for displaying the English character "EJECT OK" meaning that the cartridge 6 can be taken out of the camera are provided. In this example, it can be instructed that the film can be fed by turning on the segment 52a, and it can be instructed that the film cannot be fed by turning it off. Further, it can be instructed that the cartridge 6 can be taken out by lighting the segment 52b, and it can be instructed that the cartridge 6 cannot be taken out by turning it off. FIG. 4 (c) shows FIG. 4 (a) and FIG.
It is an example in which both display patterns of (b) are combined. FIG.
(D) is a diagram 53 schematically showing a state in which the opening / closing lid 8 is opened and the cartridge 6 is pulled out from the cartridge chamber 7, and a symbol “X” indicating that the opening / closing lid 8 is in the opening prohibited state.
In this example, a segment 54 that displays and is displayed on the graphic 53 is provided. In this example, the segment 54 can be lit to indicate the open / closed state of the open / close lid 8 and can be turned off to indicate the openable state of the open / close lid 8. The figures 50, 5
3 may be either a liquid crystal display or a fixed display such as printing on the display surface of the display panel 5.

The operation of the cartridge 6 and the display of the liquid crystal display panel 5 are controlled by the control system shown in FIG. The film winding shaft 62 of the cartridge 6 is the drive shaft 10.
Is connected to the drive unit 11 via the drive shaft 11. The shield door pivot shaft 63 is connected to the drive unit 11 via the drive shaft 12. The drive unit 11 has a built-in motor and speed reduction mechanism, and a CPU
The film take-up shaft 62 and the shield door rotating shaft 63 are driven to rotate in response to a command signal from 13. Film winding shaft 62
The film F in the cartridge 6 is sent out from the film entrance / exit 60 by the normal rotation of the film, and the film F is wound up by the film winding shaft 62 by the reverse rotation. Further, the shielding door 61 is opened and closed by the rotation of the shielding door rotating shaft 63. The drive shaft 12 is urged by the toggle spring 14 to the open position (solid line position in the figure) or closed position (two-dot chain line position in the figure) of the shielding door 61 with the middle point of the rotation range as a boundary. When the shield door 61 is in the open position, the arm 12a of the drive shaft 12 causes the two contact pieces a and b of the switch SW1 to come into contact with each other and the switch SW1.
Turns on. On the other hand, when the shielding door 61 is in the closed position, the arm 1
2a contacts the two contact pieces a and b of the switch SW2 to turn on the switch SW2.

The CPU 13 is provided with a microcomputer and peripheral devices necessary for its operation. In addition to the driving device 11 and the switches SW1 and SW2 described above, the photographing device 15, the display device 16, the initial feed switch SW3 and the cartridge loading completion switch are provided. SW4 is connected. The photographing device 15 drives a shutter and a diaphragm (not shown) in response to the pressing operation of the release button 3 (FIG. 2) to expose the film F. The display device 16 includes the above-described liquid crystal display panel 5 and a drive circuit necessary for driving the liquid crystal display panel 5, and displays predetermined information on the liquid crystal display panel 5 in response to a signal from the CPU 13. The initial feed switch SW3 is the film initial feed button 4
It is turned on in response to the pushing operation (FIG. 2). The cartridge loading completion switch SW4 sends a predetermined loading completion signal to the CPU 13 when the cartridge 6 is loaded in the cartridge chamber 7 and the opening / closing lid 8 is closed.

Next, referring to FIGS. 5 and 6, the CPU 13
The interrupt processing relating to the display control of the cartridge 6 and the display device 16 by the above will be described. In the following, the liquid crystal display panel 5 has the display pattern shown in FIG.
It is assumed that 0 is always displayed. When the cartridge loading completion signal switch SW4 is turned on in response to the loading of the cartridge 6 into the cartridge chamber 7, the CPU 13 starts the process shown in FIG. First, in step S1, the shielding door 6
It is determined whether the switch SW2 for detecting the closed position of 1 is ON. If it is on, the process proceeds to step S2, and the segments 51b and 52b of the liquid crystal display panel 5 are turned on to indicate that the shielding door 61 is closed, and the segments 51a and
52a is turned off. In a succeeding step S3, it is determined whether or not the initial feed switch SW3 is turned on. If it is not on, the determination is repeated, and if it is on, the process proceeds to step S4. In step S4, the built-in timer 13a of the CPU 13 is started. In the next step S5, the drive shaft 12 is driven by the drive device 11 to drive the shield door 61 to the open position.

In the following step S6, it is determined whether or not the switch SW1 for detecting the open position of the shielding door 61 is on. If it is off, the process proceeds to step S7 to determine whether or not the timer 13a has timed out. If the time is not up, the process returns to step S5. When it is determined in step S6 that the switch SW1 is turned on, the process proceeds to step S8, in which the segments 51a and 52a of the liquid crystal display panel 5 are turned on to indicate that the shielding door 61 is open, and the segments 51b and 5b.
Turn off 2b. In the subsequent step S9, the drive shaft 1
The drive of the shielding door 61 to the open position side by 2 is stopped, and the film initial feeding process is performed in the next step S10. The initial film feeding process is a process of feeding the film F to the spool chamber by rotating the film winding shaft 62 by a predetermined angle by the drive shaft 10. When the process of step S10 ends, the interrupt process ends.

If the switch SW2 is not turned on in step S1, the process proceeds to step S11 to blink all the segments of the liquid crystal display panel 5. This is because internal light leakage may occur if the shielding door 61 that should have been closed at the time of loading is opened, and the operator is warned. After step S2, the interrupt processing ends. Also, when it is determined that the time is up in step S7, the process proceeds to step S11. This is because when the opening operation of the shielding door 61 is not completed within a predetermined time, there is a high possibility that an abnormality such as a catch on the drive system has occurred, and the operator is warned of this.

After the exposure of all film frames is completed,
Alternatively, when a film rewind button (not shown) is operated, C
The PU 13 causes the drive device 11 to rotate the film winding shaft 62 in the film rewinding direction to start rewinding the film F into the cartridge 6. When the rewinding of the film F is completed, a film rewinding completion signal is input to the CPU 13 from a detection switch (not shown), and in response to this signal, the CPU 13 starts the process shown in FIG. Step S
In step 21, the timer 13a is started, and in the next step S22, the shielding door 61 is driven to the closed position. Continued Step S23
Then, it is determined whether or not the switch SW2 is on. If not, the process proceeds to step S24 to determine whether or not the timer 13a has timed out. If the time is not up, the process returns to step S22. When it is determined in step S23 that the switch SW2 is turned on, the process proceeds to step S25, the segments 51b and 52b of the liquid crystal display panel 5 are turned on to indicate that the shielding door 61 is closed, and the segment 51a,
52a is turned off. In the following step S26, the drive shaft 12 stops driving the shield door 61 to the closed position side, and thereafter, the interrupt process ends. When it is determined in step S24 that the time is up, the process proceeds to step S27,
All the segments of the liquid crystal display panel 5 are made to blink. This is because when the closing operation of the shielding door 61 is not completed within a predetermined time, there is a high possibility that an abnormality such as a drive system being caught occurs, and the operator is warned of this.

In the above process, the liquid crystal display panel 5 displays whether the shielding door 61 is open or closed and whether or not the cartridge 6 can be taken out. Therefore, the operator opens the opening and closing cover 8 to move the cartridge 6 into the cartridge chamber 7. It is possible to easily identify whether or not it can be taken out from. Therefore, it is possible to prevent a mistake in which the opening / closing lid 8 is opened and the cartridge 6 is pulled out while the shielding door 61 is opened and the film is pulled out. In particular, the fact that the cartridge 6 can be taken out is directly displayed in characters by the segment 52b, and thus the effect of preventing erroneous operation is high. Since the operator opens the opening / closing lid 8 after confirming the closed state of the shielding door 61, the transparent window for cartridge presence / absence provided in the cartridge chamber of the conventional camera is unnecessary, and the reliability against light leakage is improved. As the number of cameras increases, so does the degree of freedom in camera design.

In the embodiment, since the initial feeding of the film is automatically started in association with the opening operation of the shielding door 61,
The lighting of the segments 51a and 52a merely serves the function of confirming the open state of the shielding door 61. However, in a camera in which the operator separately commands the opening operation of the shielding door 61 and the feeding of the film, there is a possibility that the film feeding may be performed with the shielding door 61 closed, so that the closed state of the shielding door 61 is displayed. The effect of preventing operation mistakes can be enhanced by displaying the status of film feeding and film feeding.

When the example of FIG. 4D is adopted as the display pattern of the liquid crystal display panel 5, the segment 54 is extinguished in step S2 and step S25 of FIG. 5 and FIG. 6 described above, and the segment 54 is displayed in step S8. Light. When the segment 54 is turned on, it is directly displayed that opening and closing of the opening and closing cover 8 is prohibited, so that even a person who is unfamiliar with the operation of the camera is unlikely to open the opening and closing cover 8 by mistake. In addition, it is more effective to directly display the open / closed state of the opening / closing lid 8 with characters.

In the above embodiment, the switches SW1 and SW
2, the CPU 13 and the display device 16 constitute an indicating means, and the liquid crystal display panel 5 constitutes a display. The instruction from the instruction means is not limited to a visual display, but may be one that appeals to the five senses other than the visual sense, such as voice. Display device 1
The display pattern of 6 is not limited to the example of FIG. 4, and the opening and closing of the shielding door may be displayed by switching on and off of a single indicator light (LED or the like), and the display color is changed (for example, cartridge removal is prohibited. It may be red in some cases, and green when it can be taken out. Although the camera has been described as an example of the information-related device, another device, for example, a device that sequentially pulls out the film from the cartridge and reads the information recorded therein, is a cartridge loaded in the device. The present invention can be applied when it is necessary to identify whether the shield door is opened or closed.

[0023]

As described above, in the inventions of claims 1 to 4, since the instruction content to the operator changes depending on the opening / closing state of the shielding door of the film cartridge, the operator is informed of the opening / closing state of the shielding door. It is possible to accurately identify and prevent erroneous operation due to erroneous recognition of opening / closing of the shielding door. In particular, according to the second aspect of the invention, the open / closed state of the shielding door can be quickly and surely determined by visually recognizing the display content of the display, and the effect of preventing erroneous operation is high. According to the third aspect of the invention, it is possible to prevent the mistake of taking out the film cartridge from the apparatus with the shield door opened.
According to the invention of claim 4, the mistake of feeding the film with the shielding door closed can be prevented. According to the fifth to seventh aspects of the invention, it is direct to the camera operator whether the opening / closing lid is in the openable state or the openable state depending on whether or not the film cartridge can be taken out of the camera. Therefore, even an operator unfamiliar with the camera is unlikely to accidentally open the opening / closing lid to expose the film. Particularly, in the invention of claim 6, when the cartridge with the shield door is used, the mistake of opening the opening / closing lid with the shield door open can be prevented. According to the invention of claim 7, it is possible to quickly and surely determine whether or not the open lid may be opened by visually recognizing the display content of the display, and the effect of preventing the erroneous operation of the open / close lid is high.

[Brief description of drawings]

FIG. 1 is a diagram showing a film cartridge used in a camera according to an embodiment of the present invention and a configuration relating to driving and information display related to the driving.

FIG. 2 is a perspective view of a front surface side and an upper surface side of the camera of the embodiment.

FIG. 3 is a perspective view of the bottom surface side of the camera of the embodiment.

FIG. 4 is a diagram showing a display pattern of a display device.

5 is a flowchart showing a procedure of drive control of a film cartridge and a display unit, which is executed by the CPU of FIG.

FIG. 6 is a flowchart following FIG. 5;

[Explanation of symbols]

 4 film initial feed button 5 liquid crystal display panel 6 film cartridge 7 cartridge chamber 7a opening of the cartridge chamber 8 opening / closing lid of the cartridge chamber 9 opening / closing knob 11 drive device 13 CPU 16 display device 60 film cartridge film inlet / outlet 61 film cartridge shielding door 62 Film take-up shaft of film cartridge 63 Rotating shaft of shield door of film cartridge F Film SW1 Switch for detecting open position of shield door SW2 Switch for detecting closed position of shield door SW3 Initial feed switch SW4 Cartridge loading completion signal switch

Claims (7)

[Claims] 1. A film cartridge provided with a shielding door for opening and closing a film entrance / exit can be loaded, and at least one of information recording on the film fed out from the film cartridge and information reading from the film can be performed. In the information-related device to be performed, the detection unit that detects the open / closed state of the shielding door, and the instruction content to the operator when the open state of the shielding door is detected and when the closed state of the shielding door is detected, An information-related device comprising: a changing instruction unit. 2. The indicator means includes a display device whose display content is visually changed between when the open state of the shielding door is detected and when the closed state of the shielding door is detected. The information-related device according to claim 1, which is characterized in that. 3. The instructing means instructs the operator that the film cartridge can be taken out of the apparatus when the closed state of the shielding door is detected, The information-related device according to claim 1, wherein when the open state is detected, the operator is instructed that the film cartridge cannot be taken out of the apparatus. 4. The instructing means instructs the operator that the film can be fed when the open state of the shielding door is detected, and detects the closed state of the shielding door. 2. The information-related device according to claim 1, wherein when it is performed, the operator is instructed that the film cannot be fed. 5. A camera having a cartridge chamber in which a film cartridge is loaded and an opening / closing lid for opening and closing the cartridge chamber, the detection detecting whether or not the film cartridge can be taken out of the camera. And a means for instructing the operator of the camera that the opening / closing lid is openable when it is detected that the film cartridge can be taken out of the camera. A camera comprising: an instruction means for instructing the operator that the opening / closing lid is in the open prohibition state when it is detected that the operator cannot take out the camera. 6. The film cartridge is provided with a shielding door for opening and closing a film entrance, the detecting means detects an open / closed state of the shielding door, and the instructing means detects a closed state of the shielding door. When the opening state of the cover is detected, the operator is instructed to open the cover, and when the open state of the shield door is detected, the cover is not open. The camera according to claim 5, wherein the camera indicates that. 7. The camera according to claim 5, wherein the instruction unit includes a display device that visually indicates whether the opening / closing lid is in the openable state or the open prohibited state.