JPS63267937A - Image forming device - Google Patents

Abstract

PURPOSE:To automatically and accurately set a film in a film path system by arranging a rolled film loaded in a film drawing part in a specified film traveling path and fixing the edge of the film on a film storing part so as to set in a winding-enable state. CONSTITUTION:The rolled film 11 is loaded in the film drawing part 10 and the edge of the film 11 is arranged to be set in the first driving part of the film drawing part 10. After that, the film 11 is automatically carried to be set in a specified position until the actuation of an image forming device becomes possible. Namely, after that, the film 11 is sent out on the film traveling path 26 by the first driving part. And the edge of the film 11 is guided by guiding members 51-55 arranged in specified positions and reaches a main driving device 30, so that it is carried by driven from the main driving device 30 and the edge is wound by the second driving part when the edge of the film 11 reaches a film storing part 20. Thus, the setting of film can be automatically and accurately executed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image forming apparatus that forms image information on a conveyed long film.

[Prior Art] A conventional image forming apparatus, for example, as shown in FIG.
A housing (not shown), a film feeding section 110 for a rolled film disposed within the housing, and a film storage section 120 disposed within the housing to form a film running path 126 between the film feeding section 110;
disposed within the housing over the film travel path 126;
a main vJ device 130 that drives the film 111 at a constant speed;
The main drive consists of a laser optical system! It consists of an image information recording section 140 that irradiates a laser beam in the width direction of the film 1110 held and driven at 130.

In the above-mentioned conventional uniformity forming apparatus, the roll-shaped film for recording uniformity of information is loaded into the film feeding section 110 and then pulled out onto the film running path 126 in advance, and the tip thereof is attached to a take-up reel having a film storage capacity of 120. It is set in an operable state by being fixed to.

Furthermore, Japanese Patent Application Laid-Open No. 59-83456 discloses a technique for automatic loading that allows film to be set even in a bright room with less wasted film.

[Problems to be Solved by the Invention] The work of setting a film in a conventional image forming apparatus is complicated because the film running path for setting the film is curved and the parts of the apparatus are arranged at narrow intervals. It has become a thing. Further, with the technique disclosed in the above-mentioned publication, it is possible to reduce wastage of the film, but if the film travel path is curved, the film may not be transported reliably.

The present invention has been made in view of the above problems, and an object thereof is to provide an image forming apparatus that can self-help and reliably set a film on a film bus system.

[Means for Solving the Problems] The image forming apparatus of the present invention includes a housing, a film feeding section having a first drive section that feeds out a roll-shaped film arranged in the housing, and a film feeding section that a film accommodating section having a second drive section disposed within the housing to form a film path therebetween and winding up the film to be fed; and a main drive disposed along the film travel path for driving and transporting the film. a recording unit that records image information on a film that is held and driven by a cough main drive device; a guide member that is arranged along the film running path to guide the film; and a leading end of the film that runs on the film running path. The invention is characterized in that it is comprised of a control section that detects the passage of the driving rib and controls the driving of the first driving rib, the second driving section, and the main driving device.

[Function] In the image forming apparatus of the present invention, a roll-shaped film is loaded into the film feeding section, and the leading end of the film is set in the first driving section of the film feeding section. Thereafter, the film is automatically transported and set at a predetermined position until the image forming apparatus becomes ready for operation. That is, the film is then sent out onto the film running path by the first drive section. The leading edge of the film traveling on the film running path reaches the main drive device while being guided by a guide member placed at a predetermined position, and is further driven and transported by the main drive device. When the leading edge of the film reaches the film storage section, the leading edge of the film is wound up by the second drive section. In this case, the driving of the first drive unit, main drive device, and second drive unit is controlled and stopped by the control unit based on the result of detecting that the leading edge of the film passes a predetermined position on the film travel path. In this way, the film is automatically set in a predetermined position, and the image forming apparatus is ready for operation.

[Embodiments] Specific embodiments of the uniformity forming apparatus of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, the image forming apparatus of this embodiment includes a housing 1, a film feeding section 10, a film storage section 20, a main drive device 30, a recording section 40,
The main components are a guide member 50 and a control section 60.

The housing 1 includes a film feeding section 10, a film storage section 20. Main drive bag W130, recording section 40. Guide member 51
~56, Ill'm part 60 etc. are housed inside,
A sealed dark room is created, cut off from the outside world. The housing 1 is provided with an opening/closing lid 1a for storing a film, etc.

The film feeding section 10 is disposed in the lower part of the housing 1, and is a part into which a roll-shaped film 11 is loaded. In this example, 161 wet roll film (manufactured by Fuji Photo Film Co., Ltd. [Minicopy HRIIJ)]
A cartridge 13 is loaded with a cartridge 13 wound on a reel 12. As shown in FIG. 3 with the lid (not shown) of the case 13a opened, the cartridge 13 has a case 1.
3a, a rotating shaft 14, a drive roller 15, a press roller 16, and a film outlet 17, and the - side wall can be opened and opened. The rotating shaft 14 holds a reel 12 around which the film 11 is wound, and the held reel 12 rotates around the rotating shaft 14. The drive roller 15 is disposed near the outlet 17 in the cartridge 13, and has a shaft hole 15a in its center into which the drive shaft 5 is inserted, as shown in FIG. The drive shaft 5 is provided to protrude from the housing 1, and when the cartridge 13 is loaded, it is inserted and fixed into the shaft hole 15a while passing through the bottom portion 13b of the cartridge 13. The presser roller 16 is the third
As shown in the figure, one end of the cartridge 13 is rotatably held by the other end of an arm member 16a that is swingably provided, and a part of the outer peripheral surface of the arm member 16a is attached to the drive roller 15 by the bias of a spring 16b. It is in contact with the outer peripheral surface. Naori-
The tricine 13 is provided with a detection shaft 18 for detecting the initial state of the film 11.

The film accommodating section 20 is disposed in the upper part of the housing 1, and forms a vertically elongated film running path 26 between it and the film feeding section 10.

The film storage section 20 has a clamping mechanism that clamps the leading end of the film 11 being fed, and a winding section that is driven by a drive shaft (second drive section) and winds up the film 11 clamped by the clamping mechanism. The cartridge 23 housed in the cartridge 23 is loaded. The clamping mechanism includes a clamping chamber 24, a clamping member 25, and an opening member 27, as shown in FIGS. 5 and 6 with the lid 23c of the cartridge 23 open. The clamping chamber 24 is provided approximately at the center of the winding wheel 22 and has an insertion opening 24a facing the direction in which the film 11 enters. The clamping member 25 is provided in the clamping chamber 24, is biased by a spring 25b from the side of the insertion opening 24a, and is disposed such that its end 25a abuts against the side wall 24b of the clamping chamber 24.

Note that the tip portion 25a of the holding member 25 is formed of a rubber member. The opening member 27 is provided in the housing 1 so as to be able to protrude freely, and is inserted into the clamping chamber 24 when the cartridge 23 is loaded, and presses the clamping member 25 against the biasing force of the spring 25b to open the insertion opening 24a. Open. This opening member 27 has a thin inclined surface 27a at the tip so that it can be easily inserted into the clamping chamber 24. Moreover, the opening member 27 can also have other configurations. For example, as shown in FIGS. 7 and 8, an actuation arm 86 provided on the holding member 85, a pulley 88 that presses the actuation arm 86 against a spring 87 to release the holding state of the holding member 85, It can be configured with a solenoid 89 that drives a pulley 88. This makes it possible to secure a distance between the drive shaft 84 and the drive motor, which is advantageous in terms of configuration.

As shown in FIGS. 5 and 6, the take-up section includes a take-up reel 22 housed in a case 23a of a cartridge 23, and a drive shaft 6 that rotationally drives the take-up reel 22.

The take-up reel 22 has a shaft hole 22a into which the drive shaft 6 is inserted, and a recess 22b formed on the outer periphery. The drive shaft 6 is provided in the housing 1 in parallel with the opening member 27, and the shaft hole 22a of the take-up reel 22 is inserted through the drive shaft 6 from the bottom surface 23b of the cartridge 23. Further, the case 23a is provided with an engaging member 28, whose tip 28a is biased by a spring 28c to engage the recessed portion 28.
2b to prevent the take-up reel 22 from rotating. A release member 29 is provided on the other end 28b side of the engagement member 28. The release member 29 is inserted through an insertion hole 23b formed in the case 23a and presses the other end 28b to release the engaged state. This release member 29 is provided in the housing 1, and is driven by a drive section (not shown) after the leading end of the film 11 is held between the holding members 27 and the film setting is completed.

The main drive unit u30, as shown in FIGS. 1 and 2,
It is arranged in the middle part of the housing 1 on the film running path 26. This main drive device 30 includes a main shaft motor (not shown) and a main drive roller 31 that is driven by the main shaft motor and transports the film 11 that is in contact with the outer peripheral surface of the main shaft motor.
It is composed of. The main drive roller 31 has a part of its outer peripheral surface facing a direction in which it receives laser irradiation from a recording section 40, which will be described later, and the facing part serves as an image recording position. On both sides of the image recording position, pressure rollers 32 and 33 are provided in contact with the outer peripheral surface of the main drive roller 31. The film 11 fed out from the film feeding section 1o is pressed against the outer circumferential surface of the main drive roller 31 by both pressing rollers 32 and 33, and is placed in contact with the image recording position.

Note that slack detectors [7, 8] are provided on the film supply side and the delivery side of the main drive roller 31 to detect slack in the transported film 11. Slack detection 117
controls the drive roller 15 in the cartridge 13, and the slack detection device 8 controls the slack control roller 35.

The transport speed of each film 11 is adjusted so as not to apply a load to the main drive roller 31. Both slack detectors W7.8 are infrared light emitting diodes 7a.

8a and light receiving elements 7b and 8b.

The recording section 40 is composed of a laser optical system as shown in FIG. 2, and records image information by irradiating a laser beam in the width direction of the film 11 being conveyed at the image recording position of the main drive roller 31. It is. This recording unit 40 is equipped with a laser device g! that generates a helium/neon gas laser based on desired image information. 41, a rotating polygon mirror 42 that rotates the laser irradiated from the laser device 41 at high speed and deflects it to scan a line, and a lens group 43 that focuses the laser beam from the rotating polygon mirror 42 at a distance compared to the incident angle. and a shutter 44.

The guide members 51 to 56 include first to fifth guide members 51 to 55 arranged along the film running path 26, and a sixth guide member 5 that guides the film to the film storage section 20.
6 and more. The first guide member 51 guides the film 11 fed out from the film feeding section 10 to the second guide member, and is formed in a cylindrical shape. The second guide member 52 guides the film 11 toward the slack detection device 7 and is formed in a semicircular shape outside the film travel path 26 . The third guide member 53 guides the film 11 sent from the second guide member 52 to the intermediate roller 34 through the inside of the slack detector 7. The third guide member 53 is cut on both sides to allow the film 11 to sag within the sag detector 7 and to not block the path of the detection light.

The fourth guide member 54 is arranged between the two pressure rollers 32, 33 facing the outer peripheral surface of the main drive roller.

This fourth guide member 54 is provided so as to be housed in the housing 1, and is protruded only when setting a film. The fifth guide member 55 is connected to the main drive roller 3
The film 11 sent from 1 is guided to the slack drive roller 35 via the slack detector 8. Like the third guide member 53, this fifth guide member 55 is also in a state in which both side surfaces are cut in the slack detector 8. The sixth guide member 56, as shown in FIG.
It consists of arm members 56a and 56b arranged on both sides of the film running path 26 near the film storage section 20. Both arm members 56a156b each have one end 56c,
56d are swingably provided in the housing 1, and when the film is set, the other end of each is swingably arranged in the direction of the insertion opening 24a of the take-up reel 22.

Note that the first, third, and fifth guide members 51, 53, and 55 are as follows:
As shown in FIG. 9, it consists of a flat member 51a and a member 51b with a cross-sectional opening shape. In addition, each guide member 51.53
．． As shown in FIG. 11, the entry port 51G for the film 11 of 55 is formed in a shape that is wide in the width direction of the film 11 so that the film 11 enters smoothly (film jam is less likely to occur). ing. Also film 11
It will be even more effective if the opening is wide in the thickness direction. Note that each guide member 51, 53, 55 can also be constructed by combining members 51d each having a cross-sectional shape, as shown in FIG. In this case, since the two members have the same shape, manufacturing and processing can be simplified, and materials can be saved where only one member is required.

A pair of cutters 70 are provided near the film outlet 17 of the film feeding section 10 along both sides of the film running path 26. As shown in FIG. 12, this cutter 70 has a curved cutting edge so that the tip of the cut film 11 is rounded.

The control section 60 controls the driving of the drive shaft 5 of the film feeding section 10, the drive shaft 6 of the film storage section 20, and the main drive roller 31 of the main drive device 30. This control section 6
The control by 0 is performed based on the detection results of the first sensor 61 and the second sensor 62. The first sensor 61 is arranged between the second guide member 52 and the third guide member 53 on the film running path 26, and the second sensor 62 is arranged between the slack control roller 35 and the sixth guide member 56. It is located in Both sensors 61 and 62 are light emitting diodes 61
a, 62a and light receiving elements 61b, 62b, and detects whether the leading edge of the film 11 has passed over the film running path 26 within a predetermined time.

The image forming apparatus of this embodiment is configured as described above, and its operation will be explained next.

First, the reel 12 on which the film 11 has been wound is stored in the cartridge 13, the leading end of the film 11 is pulled out and passed between the drive roller 15 and the presser roller 16, and the film 1
1 is placed at the outlet 17. After closing the lid, the cartridge 13 is loaded into the film feeding section 10. At this time, the drive shaft 5 is inserted into the shaft hole 15a of the drive roller 15. On the other hand, the cartridge 23 has a take-up reel 2
2 is attached with the recess 22b and the distal end 28a of the engaging member 28 engaged. After closing the lid 23C, the cartridge 23 is loaded into the film storage section 20. At this time, the drive shaft 6 is inserted into the shaft hole 22a of the reel 22, and the release member 27 presses the clamping member 25 against the biasing force of the spring 25a, so that the insertion port 24 is opened. Further, when the cartridge 23 is loaded into the film storage section 20, the tips of both arm members 56a and 56b swing to the position of the insertion opening 24a.

If you turn on the film set switch in this state, the first
As shown in the time chart in Figure 3, the film feeding section 1
0 drive roller 15, the main drive roller 31 of the main drive device 30, the 1st t? sensor 61, second sensor 62, and slack detector 8 are activated. At the same time, the third guide member 53 protrudes and becomes set. As the drive shaft 5 is driven, the drive roller 15 is driven, and the film 11 in the cartridge 13 is fed out. The film 11 is conveyed on the film running path 26 toward the insertion opening 24a of the take-up reel 22 while being guided by each of the guide members 51 to 56. At this time, the drive roller 15
It is driven at a constant speed for a certain period of time until it reaches the main drive roller 31, and after that, it is υJailed by the slack detector 8 and driven. Furthermore, the slack detector 8 controls the slack control roller 35 so that the film 11 sent out from the main drive roller 31 has an appropriate amount of slack. During this process, when the passing of the leading edge of the film 11 is not detected by the first sensor 61 within a predetermined time, and when the passing of the leading end of the film 11 is not detected by the second sensor 62 within a predetermined time after the detection by the first sensor 61. , the operation of each of the above drive units is stopped by the 1ilJ control unit.

After the passage of the leading edge of the film 11 is detected by the second sensor 62, the film 11 is
is conveyed, and when the leading edge of the film 11 reaches the insertion opening 24a of the take-up reel 22, each drive section is stopped by the control section. At this time, the opening member 27 is removed from the clamping chamber 24, and the tip of the film 11 is clamped between the tip 25a of the clamping member 25 and the side wall 24b due to the biasing force of the spring 25b.

Then, the release member 29 is inserted through the insertion hole 23a and presses the other end 28b of the engagement member 28, so that the spring 28
The tip end 28a of the engaging member 28 separates from the recess 22a of the take-up reel 22 against the biasing force c, and the take-up reel 22 becomes rotatable.

Further, the fourth guide member 54 is housed in the housing and moved away from the predetermined guiding position, and becomes ready for laser irradiation from the recording section 40. At the same time, the sixth guide member 56 is swung and moved out of the cartridge 23. Setting the film 11 at a predetermined position is completed in the above manner.

Then, when performing image formation, the start switch is turned on. As a result, the drive roller 15 inside the cartridge 13 feeds out an appropriate amount of film 11 from inside the cartridge 13 while being controlled by the slack detector 7, and the film 11 is supplied to the main drive roller 31 with an appropriate amount of slack. Ru. On the other hand, the main drive roller 31 driven by the main shaft motor conveys the film 11 pressed by the pressure rollers 32 and 33 to an image forming position on its outer peripheral surface. At this time, the surface of the film 11 opposite to the contact portion with the main drive roller 31 is irradiated with laser by the recording section 40 to record image information. Thereafter, the film 11 on which the image information has been recorded is given an appropriate amount of slack by the slack roller 35, and then transferred to the main drive roller 31.
Sent from The film 11 is then wound up and stored on the winding wheel 22 of the film storage section 20. After the predetermined recording work is completed in this manner, the film 11 is cut by the cutter 70. Then, the film 11 on the travel path 26 is wound onto the take-up reel 22, and the take-up reel 22 is replaced. Thereafter, turn on the film set switch, set the film in the same manner as above, and prepare for the next operation.

As described above, according to the image forming apparatus of this embodiment, the setting of the film in the film bus system before image recording is performed automatically and reliably by guiding the film with the guide members 51 to 56. be able to.

Further, since the cutter 70 is provided near the outlet 17 of the film feeding section 10, waste of the film 11 can be reduced. Since the cutting edge of the cutter 70 is curved, no corner is formed at the tip of the cut film 11. In addition, since the film 11 entry ports of the first, third, and fifth guide members 51, 53, and 55 have wide openings, the film 11 can enter smoothly. Therefore, when the film 11 is transported, it is possible to prevent troubles such as film jamming caused by the film 11 being caught on a guide member or the like.

Furthermore, since the control unit 60 controls each drive unit to stop when the first and second sensors 61 and 62 do not detect the passage of the film within a predetermined time, it is possible to detect when a film stagnation occurs. .

[Effects of the Invention] The image forming apparatus of the present invention includes a housing, a film feeding section having a first driving section that feeds out a roll-shaped film arranged in the housing, and a film passage between the film feeding section and the film feeding section. a film accommodating section having a second drive section disposed in the housing to be formed and winding up the fed film; a main drive device disposed along the film running path for driving and conveying the film; a recording section for recording image information on a film held and driven by the device; a guide member disposed along the film running path for guiding the film; and a guide member for detecting passage of the leading edge of the film running on the film running path. The drive unit includes a first drive unit, a second drive unit, and a control unit that controls driving of the main drive device.

Therefore, the roll-shaped film loaded in the film feeding section is arranged in a predetermined film running path, and its leading end is fixed to the film storage section so that it can be wound up. That is, the film can be automatically set on the film bus system.

Furthermore, since the leading end of the film is guided by the guide member during film setting, the film can be set reliably even if the film travel path is curved.

[Brief explanation of the drawing]

1 to 13 relate to an embodiment of image forming '4A'11 of the present invention, FIG. 1 is a perspective view showing the overall configuration, and FIG.
3 is a plan view showing the structure of the raw film cartridge, FIG. 4 is a sectional view of the drive roller portion, and FIG. 5 is a plan view showing the structure of the take-up reel cartridge. , FIG. 6 is a side view of the same, FIG. 7 is a plan view showing another example of the opening member of the clamping mechanism, FIG. 8 is a longitudinal sectional view of the same, FIG. FIG. 13 is a time chart during autoloading, and FIG. 14 is a plan view showing the system of a conventional image forming apparatus. DESCRIPTION OF SYMBOLS 1... Housing 5... Drive shaft (1st drive part) 6... Drive shaft (2nd drive part) 10... Film feeding part 11... Film 2
0...Film storage section 26...Film running path 30...Main drive device 31...Main drive roller 40...Recording section 51
~55...Guide member 60...Control unit 61...
・First sensor 62...Second sensor Patent applicant Minolta Camera Co., Ltd. Agent Patent attorney Hirodo Okawa Patent attorney Akio Maruyama Figure 1 Figure 2 Figure 4 Figure 5 Figure 7 Figure 8

Claims (3)

[Claims] (1) A housing, a film feeding section having a first driving section disposed in the housing for feeding out a roll-shaped film, and a feeding section disposed in the housing to form a film passage between the film feeding section and the film feeding section. a film accommodating section having a second drive section for winding up the incoming film; a main drive device disposed along the film running path for driving and transporting the film; and image information on the film held and driven by the main drive device. a recording section for recording the film; a guide member disposed along the film running path for guiding the film; An image forming apparatus comprising: a control section that controls driving of a driving device. (2) The control section includes a first sensor disposed between the film feeding section on the film running path and the main drive device, and a second sensor disposed between the main drive device and the film storage section. a first drive unit, when the first and second sensors do not detect the passing of the leading edge of the film within a predetermined time, and when the second sensor detects the passing of the leading edge of the film and a predetermined time has elapsed;
The image forming apparatus according to claim 1, wherein the second drive section and the main drive device are stopped from being driven. (3) A claim in which the film accommodating section comprises a clamping mechanism that clamps the leading end of the film being fed, and a winding section that is driven by a second drive section and winds up the film clamped by the clamping mechanism. The image forming apparatus according to item 1.