JPH045976B2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is applicable to microreaders and microreaders.
This invention relates to a roll film carrier in a printer.

(Prior art) Roll films used for microreaders and microreader printers are currently manufactured by 3M (Minnesota Mining & Manufacturing) in the United States, as shown in Figure 1.
Type A cartridges, 3M's Easy Loading Cartridges B as shown in FIG. 2, or EK (Eastman Kodak, USA) Extamate type cartridges (not shown) are available. In each of these, the film 1 is sent out and rewound by rotating a reel 2 which is attached to a roll film carrier and holds the long film 1 wound thereon. By the way, in the conventional roll film carrier, reel 2
The drive shaft, which transmits the driving force to the reel 2, always protrudes from the cartridge mounting part in order to drive the reel 2 by only rotating in a fixed position. Therefore, the cartridge is attached to and detached from the drive shaft by being attached to and detached from the cartridge mounting portion in the direction of the rotating shaft.

(Problem to be Solved by the Invention) In this case, however, in the case of the cartridge A shown in FIG. 1, although the state of engagement with the drive shaft is maintained by the attraction action of the magnet, the attraction and retention of the magnet is obtained. Since the cartridge A must be kept in a proper engaged state, the cartridge A cannot be installed in a rough manner, resulting in a lack of operability. Cartridge B, etc., which can be driven simply by fitting a square hole etc. onto the drive shaft as shown in Figure 2, requires proper fitting with the drive shaft and must be fitted with a lock each time to prevent it from falling out. To prevent this, a holding plate is attached and the cartridge B
It is necessary to open and close the presser plate when attaching and detaching the
Furthermore, there was a problem that the operability was poor and it was even more inconvenient to use.

In view of the above conventional problems, the present invention provides a roll film carrier that can improve operability by making it possible to attach and detach a cartridge from a direction perpendicular to the rotation axis of the reel. The primary purpose is to

Therefore, the present invention provides a cartridge-receiving casing that is configured so that the drive shaft can move forward and backward in the direction of the rotation axis, and that has an opening that allows insertion of the cartridge from a direction perpendicular to the drive shaft. An engaging member is provided on the mounting portion and further provided at the tip of the drive shaft to engage with a reel in the cartridge to transmit driving force when the drive shaft advances. By the way, generally, for the purpose of positioning the cartridge at a predetermined position, the casing is usually set to a size that is substantially the same as the size of the cartridge. If this is not done, the position of the film in the width direction will vary and proper film supply will not be realized. However, in this case, when inserting the cartridge into the casing, the size of the cartridge and the size of the insertion opening (opening) of the casing are approximately the same, so
A problem arises in that it becomes difficult to insert the cartridge and the operation becomes inconvenient.

Furthermore, since the reel is installed in the cartridge with some play, even if the size of the casing is set to be approximately the same as the size of the cartridge, there is a problem that correct positioning of the reel cannot be achieved when the cartridge is installed. There is also.

In view of the above-mentioned problems, a second object of the present invention is to provide a roll film carrier in which the cartridge can be easily inserted into the casing and the reel can be correctly positioned at a predetermined position when the cartridge is attached.

(Means for Solving the Problems) The roll film carrier of the present invention has a cartridge containing a reel on which a long film is wound and held, which is detachable in a direction perpendicular to the rotational axis direction of the reel. The roll film carrier has a drive shaft that is rotatably driven and can move forward and backward in the direction of the rotation axis, and an opening provided in a cartridge mounting part to allow insertion of the cartridge from a direction perpendicular to the drive shaft. a casing for receiving a cartridge; an engaging member provided at the tip of the drive shaft to engage with a reel in the cartridge to transmit driving force when the drive shaft advances; and a side on which the drive shaft advances and retreats; a pressing member that is provided at a side of the casing opposite to the drive shaft, is biased toward the inside of the casing, and presses the reel directly or indirectly. It is characterized by:

(Function) By having the above configuration, the present invention allows the cartridge to be inserted into the casing from the direction perpendicular to the drive shaft when the drive shaft is retracted, and then the cartridge advances to the tip of the drive shaft. The provided engaging member engages with the reel in the cartridge, transmits the driving force of the drive shaft to the reel, and can drive the reel to rotate. To remove the cartridge from the casing, the drive shaft may be moved backward.

Further, the present invention provides a position on the side of the casing opposite to the side where the drive shaft advances and at a position facing the drive shaft.
Since the pressing member is biased toward the inside of the casing and presses the reel directly or indirectly, the positioning of the reel in the casing in the drive shaft direction is controlled by the engaging member and the pressing member. Therefore, it can be done accurately. In addition, as described above, positioning of the reel in the drive shaft direction can be performed regardless of the size of the casing, and as a result, the size of the casing can be set slightly larger than the size of the cartridge, making it easier and easier to insert the cartridge. It can be made smoother.

(Embodiment) To explain the embodiment shown in FIG. 3 and below, in FIG. 3, 10 is the main body of a microreader or a microreader printer, and
A roll film carrier 11 is provided on a part of the front surface. The carrier 11 has the cartridges A and B mounted on the left side cartridge mounting section 12.
The roll film sent out from the glass plates 14 and 1 provided at the projection position 13 is
5, the film 1 is wound onto the right take-up reel 16, or the film 1 wound onto the reel 16 is reversely rewound to the cartridge A or B side. By this winding and unwinding, an arbitrary piece is set at the projection position 13 and is used for projection on a screen or printing.

The carrier body 1 is attached to the cartridge mounting portion 12.
A base 17a fixed to the front surface of 1a, and the base 17a
Cover 17b attached with screws 18 etc.
A casing 17 is provided. The casing 17 has an opening 19 for cartridge insertion which opens to the left in FIGS. 3 and 4, and a projection position 1.
It has a film feeding opening 20 that opens to the right, which is the third side. A drive shaft 21 for driving the reels 2 in the cartridges A and B is located on the back side of the base body 17a of the casing 17.
is supported by a bearing 22 so that it can rotate and move in the direction of the rotation axis. The bearing 22 is fixed to the carrier body 11a by screwing a mounting flange 22a at the front end of the bearing 22 through a mounting hole 22b of the flange 22a, not shown.

The drive shaft 21 is integrally provided with a drive flange 23 as shown in FIGS. 4 and 5 at the end protruding forward from the bearing 22, and has an engaging member 24 for the cartridge A shown in FIG. An engaging member 25 for the cartridge B is removably attached, and these engaging members 24 and 25 can be inserted into and retracted into the casing 17 through a through hole 26 of the base body 17a. Further, a driven pulley 27 is attached to a rearward protrusion from the bearing 22 of the drive shaft 21 to allow movement of the drive shaft 21 in the direction of the rotation axis for transmitting rotation to the drive shaft 21. In addition to being designed for rotational driving, the rear protruding end of the drive shaft 21 from the bearing 22 is provided with a passive flange 2 as shown in FIGS. 4 and 6.
9 is integrally provided, and a C-shaped connecting plate 32 connects the passive flange 29 and the operating shaft 31 of the solenoid 30.
When the solenoid 30 is energized, the drive shaft 21 is moved back in the direction of the arrow A, and is locked by the lock lever 39. When the lock is released, the spring 33 moves the drive shaft 21 in the direction of the arrow B. It is planned to expand into

The connecting plate 32 is connected to the operating shaft 3 of the solenoid 30.
1, the back portion 32c is connected by a pin 34,
The driven flange 2 of the drive shaft 21 is placed in the recess 32a.
9 is engaged, and when the solenoid 30 is energized and the actuating shaft 31 is retracted, the opposing claws 32b, 32b provided in the opening of the recess 32a of the connecting plate 32 are hooked on the passive flange 29, and the driving shaft 21 is pulled in the arrow direction. It is made to move backward in the direction of mark A. The spring 33 is applied to the tail end of a lever 36 which is pivotally mounted 35 at one point.
The connecting plate 32 presses the passive flange 29 with its back 32c in order to force the locking lever 39 in the direction of the arrow B and simultaneously release the locking lever 39 and restore the operating shaft 31 and the connecting plate 32 in the direction of the arrow R. is pushed to advance the drive shaft 21 in the direction of the arrow mark RO.

When the drive shaft 21 is advanced, the engagement members 24 and 25 mounted on the drive shaft 21 are projected into the casing 17, and the reel 2 of the cartridge A or B mounted inside the casing 17 is engaged with the reel 2 of the cartridge A or B mounted inside the casing 17. The reel 2 is driven by the engagement of the connecting plate 32, and the connecting plate 32 continues to push the driving shaft 21 to the advanced position even while the driving shaft 21 is rotating. In order to reduce the friction that occurs, a thrust bearing 37 is provided at the portion of the passive flange 29 pressed by the connecting plate back portion 32c. 38 is a flange for regulating the retreating position of the operating shaft 31.

A portion of the locking lever 39 is pivotally mounted 39c, and a distal end hook portion 39a is provided so as to engage with the pin 34, and a distal end slope 39b of the distal hook portion 39a is biased by a spring 40 so that the distal end hook portion 39a engages with the drive shaft 21. When the lever 39 is pressed against the pin 34 in the extended state shown in FIG.
is engaged with the pin 34 to lock the drive shaft 21 in the retracted position. As a result, the drive shaft 2
1 is held in the retracted position by a locking lever 39, and the solenoid 30 only needs to be energized when retracting the drive shaft 21. Another solenoid 41 is connected to the tail end of the locking lever 39, and by operating the solenoid 41, the locking of the lever 39 to the pin 34 is released.

The drive flange 23 of the drive shaft 21 has a connecting hole 42 concentric with the rotation axis, as shown in FIG.
, permanent magnets 43, 43 buried in two places on both sides of the diameter line of the connecting hole 42, and these magnets 43,
It has a drive hole 44 bored on a radial line perpendicular to the line connecting 43. On the other hand, each of the engaging members 24 and 25 includes a connecting shaft 45 that engages in the connecting hole 42 and a passive pin 4 that engages in the drive hole 44.
6, the whole is formed by a member attracted to the magnets 42 and 43, or at least the part facing the magnet 43 is formed, and the shaft 45 and the pin 46
and the driving flange 29 of the engaging member 24 or 25 by the engagement with the holes 42, 44 and the magnets 42, 43.
By adsorption to the drive shaft 21, it can be detachably attached to the drive shaft 21 so as to rotate together.

The engaging member 24 has permanent magnets 47, 47 for attaching the reel and engaging pins 48, 48 for transmitting the driving force to the reel 2, which are already known from the dedicated machine for the cartridge A. The member 25 has an engagement shaft 49, which is known in the special machine for the cartridge B, and is used for both reel mounting and driving.

The casing 17 has cartridges A and B inserted into the casing 17 on both the base 17a side and the cover 17b side of the cartridge insertion opening 19.
Guide slopes 50, 5 that guide when inserting into the interior
1 is provided. The guide slope 51 on the side of the cover 17b is formed on a locking block 53 that is elastically supported by a leaf spring 52 above and below the inner surface of the edge of the opening 19. The locking block 53 is
A locking portion 54 having a steeply sloped step is formed from the rear end of the guide slope 51, and a locking portion 54 is formed from the rear end of the guide slope 51 to hold the cartridges A and B.
When the cartridge is installed from the opening 19, it cooperates with its own guide slope 51 and other guide slopes 50 to guide the cartridges A and B. However, it is pushed away slightly against the leaf spring 52, and the cartridges A and B are pushed away slightly against the leaf spring 52. When the cartridge B reaches a predetermined position in the casing 17, the rear end side edge of the cartridge A or B comes off the guide slope 51, and the plate spring 52 attempts to return the cartridge to its original position, causing the locking portion 54 to It is crimped and engaged with the rear end side edge of cartridges A and B.
The engaging member 2 attached to the drive shaft 21 is pressed against the side wall having the filter delivery opening 20.
Position it correctly on the same axis as 4 and 25. Further, on the back side of the cover 17b, a pressing member 56, which is also supported by a leaf spring 55, is provided, and presses the reel 2 of the cartridge A or B inserted and locked in the appropriate position directly or by pushing the reel 2 of the cartridge into the proper position. By pressing indirectly through the reel 2, the reel 2 is elastically held in a position where it can fully engage with the engagement pin 48 and engagement shaft 45 of the engagement members 24 and 25. Note that whether the reel 2 is pressed directly by the pressing member 56 or indirectly through the casing of the cartridge may be appropriately set depending on the type of cartridge used. The pressing member 56 has a slope 56b formed around the pressing surface 56a so that the cartridges A and B do not get caught when they are taken in and out of the casing 17. In the figure, reference numeral 57 denotes an attracting portion by the magnet 47 of the cartridge A, which is disposed together with an engagement hole 58 that engages with the engagement pin 48. 59 is a square hole that engages with the engagement shaft 49 of the cartridge B. 60 is a film tip pull-out roller of the roll film carrier 11;
It is located next to the film delivery opening 20 of the casing 17, enters the operating opening 20 of the carrier 11 and the film delivery port 3 of the cartridges A and B inserted into the casing 17, and pulls out the leading end of the film 1. .

When installing cartridges A and B, first, select the engaging member 2 that matches the cartridge to be installed.
4 or 25 and attach it to the drive shaft 21.
Attach as shown. In the figure, the engaging member 25 is attached. Next, attach cartridge B to casing 1.
7, but the engaging member 2 is inserted into the casing 17.
5 cannot be inserted if it protrudes, so the solenoid 30 is energized to move the drive shaft 21 back in the direction of arrow A, and after the engaging member 25 is moved out of the casing 17 from the through hole 26, the cartridge cannot be inserted. B
Insert. The reel 2 in the cartridge B is held in a proper position by the action of the pressing member 56, where it is engaged with the engaging member 25 and driven.

After inserting the cartridge B, when another solenoid 41 is actuated, the locking lever 39, which had locked the drive shaft 21 to the retracted position when the solenoid 30 was activated, releases the lock. As a result, the drive shaft 21 is urged by the spring 33 to advance in the direction of the arrow R, causing the engagement member 25 to protrude into the casing 17. At this time, if the orientations of the engagement member 25 and the square hole 59 of the cartridge B match, the engagement shaft 49 will be completely engaged with the square hole 59; While the engagement shaft 49 enters the square hole 59 due to spring pressure, the mouth edge of the square hole 59 and the front end slope 25a of the protrusion of the engagement shaft 49 mutually guide the engagement shaft 49 to change direction and completely engage, or When the drive shaft 21 is driven in rotation, the directions match to ensure complete engagement.

By completely engaging the engaging member 25 with the cartridge B, the cartridge B can be driven.

When removing the mounted cartridge B, the solenoid 30 is energized to move the drive shaft 21 backward again. As a result, the engaging member 25 is removed from the cartridge B, and at the same time, the engaging member 25 is removed from the casing 1.
7, the cartridge B can be pulled out from inside the casing 17.

The mounting of the cartridge A may be carried out in the same manner as the case of the cartridge B described above. Note that the solenoids 30 and 41 are operated manually using a switch button (not shown), but the operating method can be designed as appropriate, and the drive shaft 2 can be operated without using the solenoids 30 and 41.
1 and the locking lever 39 can be directly operated manually, and any means for locking the drive shaft 21 to the retreated position is also available.

In short, as a result of the movement of the engaging members 24 and 25 in the rotation axis direction, the cartridges A and B move forward and backward with respect to the casing 17.
and a casing 17 that can be attached and detached in a direction perpendicular to the rotation axis regardless of the engagement relationship with the engagement members 24 and 25 in the rotation axis direction, and that engages and holds the cartridge B that does not have an engagement holding function. Specifically, it is a simple common method to move the engaging member forward and backward in any type of cartridge without the complicated work of attaching and detaching or operating the attached part including the pressing member 56 one by one. It can be attached and detached during work, and in the attached state, the reel in the cartridge can be accurately positioned by the cooperation of the pressing member 56 and the drive shaft 21, and the reel can be driven safely and reliably.

(Effects of the Invention) According to the present invention, since it has the above-mentioned configuration and operation, the following unique effects can be achieved.

The cartridge can be used by simply attaching it to the mounting part from a direction perpendicular to the rotating shaft direction, and can be used by engaging and disengaging according to changes in the position of the drive shaft.Also, it can be removed in the above direction, improving operability. Well and convenient to use. In addition, the drive shaft can move forward and backward in the axial direction, and the cartridge can be attached and detached from the direction perpendicular to the drive shaft, so even if you accidentally try to attach or detach the cartridge while rewinding the film, the cartridge will not move in the film running direction. The direction of engagement and disengagement of the cartridge will not be in a twisted positional relationship, and therefore damage such as bending of the film can be prevented.

A pressing member that is biased toward the inside of the casing and presses the reel directly or indirectly is provided on the side of the casing opposite to the side where the drive shaft advances and at a position facing the drive shaft. Therefore, by the action of this pressing member and the engaging member attached to the tip of the drive shaft, the reel can be accurately positioned in the direction of the drive shaft within the casing, and the reel can be driven accurately and smoothly. be able to. Further, since the reel can be positioned regardless of the size of the casing, the size of the casing can be set to be slightly larger than the size of the cartridge, and the cartridge insertion operation can be performed easily and smoothly.

[Brief explanation of drawings]

Figures 1 and 2 are perspective views showing an example of a known roll film cartridge, Figure 3 is an external perspective view of one embodiment, Figure 4 is a perspective view of the main parts, and Figure 5 is a perspective view of the drive shaft. A perspective view showing the relationship between each type of engagement member, and FIG. 6 is a partial perspective view. A, B... Cartridge, 1... Film, 2
... Reel, 12 ... Cartridge mounting section, 17
... Casing, 19 ... Opening, 21 ... Drive shaft, 24, 25 ... Engagement member, 56 ... Pressing member.

Claims (1)

[Scope of Claims] 1. A roll film carrier in which a cartridge containing a reel on which a long film is wound and held can be attached and detached in a direction perpendicular to the rotational axis of the reel, the carrier being rotatably driven. a drive shaft that can move forward and backward in the direction of its rotational axis; a casing for receiving a cartridge that is provided in a cartridge mounting section and has an opening that allows insertion of the cartridge from a direction perpendicular to the drive shaft; and the drive shaft. an engaging member provided at the tip of the shaft and which engages with a reel in the cartridge to transmit driving force when the drive shaft advances; and a side portion of the casing opposite to the side on which the drive shaft advances and retreats. A roll film carrier comprising: a pressing member disposed at a position facing a drive shaft, biased toward the inside of the casing, and pressing the reel directly or indirectly.