JPH0326510Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention is applicable to roll-shaped photosensitive materials (hereinafter simply referred to as roll films) used in copying machines such as direct plate making machines, plate making cameras, and electrophotographic copying machines. This invention relates to a roll film magazine for storing and holding.

<Prior art> Copying devices such as the above-mentioned direct plate making machine are usually used in a bright room, and a roll film is loaded into a film magazine in a dark room, the film magazine is attached to the copying device, and the roll film is loaded into a dark room. is automatically supplied and photographed.

In general, this roll film magazine has a film holder holding a roll film rotatably supported in a light-tight magazine box, and the film is taken out from a film take-out port via a pair of feed rollers installed inside the magazine box. It is structured as follows. In the conventional example, as shown in FIG. 10, for example, the film holder 9 connects both ends of the core tube 8 of the roll film 7 to a flange member
Hold it at 0 and press the spool shaft 1 of the film holder 9.
The shaft end 12 of the film holder 9 is received and pivotally supported by a V-shaped receiving groove 13a of a receiving member 13 fixed to a magazine box side plate (not shown) via a spacer 14, so that the film holder 9 can be easily attached and detached. It is configured. Note that reference numeral 15 is a rotation-braking leaf spring that suppresses free rotation of the film holder 9.

<Problems to be Solved by the Invention> In the above conventional example, the bearing member of the film holder 9 is composed only of the receiving member 13 in which a V-shaped receiving groove is formed, and the shaft end 12 of the film holder 9 is simply formed into a receiving groove. 13a, therefore, if the magazine box is turned sideways or its vertical direction is reversed, the film holder 9 will wobble and the end of the film will shift, causing the film to meander or the film holder 9 to fall off from this bearing. There are some difficulties. Therefore, after the roll film is loaded into the film magazine, special care must be taken in carrying and handling the magazine so that the film holder 9 does not fall off until the magazine is installed in the copying apparatus.

On the other hand, in some of the above-mentioned copying machines, the film ejection port of the magazine is provided on the bottom, side, or top of the magazine box, depending on the model. However, in the case of a magazine in which the film holder easily falls off as in the conventional example above, different structures such as bearings are made depending on whether the film ejection port is on the bottom, side, or top. This was an obstacle to standardizing magazines.

<Means for Solving the Problems> In order to solve these problems, the present invention improves the structure of the roll film magazine as follows. That is, the bearing tool has a receiving groove that guides, receives, and supports the shaft end of the film holder, and is rotatable between a pair of receiving members fixed to the magazine box and the shaft end that is pivotally supported by the receiving groove. The device is characterized by comprising a pair of detachment prevention devices that are pivotally supported on the device and prevent the device from falling off.

<Function> In order to install the film holder in the magazine, both shaft ends of the film holder are pivoted by bearings provided on both sides of the magazine box. That is, the shaft ends are guided and supported by the receiving grooves of a pair of receiving members fixed to both side plates, and both shaft ends are rotatably pivoted to prevent them from falling off with falling-off prevention devices. support This prevents the film holder from falling off the bearing.

<Examples> Examples of the present invention will be described below based on the drawings.

1 to 6 show a first embodiment of the present invention, FIG. 1 is an exploded perspective view of a bearing, FIG. 2 is an exploded perspective view of a roll film magazine, and FIG. 3 is a side sectional view thereof. 4 is a front view thereof, FIG. 5 is a sectional view taken along the - arrow in FIG. 4, and FIG. 6 is a side view of FIG.

In these figures, numeral 1 is a magazine box, 2 is a side plate, 3 is a reinforcing side plate, 4 is a handle attached to one side plate via the reinforcing side plate 3, 5 is an opening/closing lid of the magazine box 1, and 6 is a A pair of film feed rollers, 7 a roll film, 9 a film holder, 20 a bearing for pivotally supporting the shaft end 12 of the film holder 9, and 40 a film take-out portion.

As shown in FIG. 2, the film holder 9 holds both ends of the core tube 8 of the roll film 7 with flange members 10, and as shown in FIG. , the sleeve 16 is fastened with a snap spring 17, and this sleeve 16 is held by bearings 20 provided on both side plates 2, 2.

The bearing tool 20 has a characteristic structure according to the present invention, and the bearing tool 20 will be described below.

As shown in FIGS. 1 and 2, the bearing tool 20 includes a pair of receiving members 24 fixed to both side plates 2, 2 via spacers 21, 22 and a locking bearing plate 23, and a film holder 9. The shaft end portion 12 is rotatably supported by a pair of fall prevention devices 25 that prevent the shaft end portion 12 from falling off. The receiving member 24 is formed with a receiving groove 24a that guides, receives, and supports the sleeve 16 provided at the shaft end 12 of the film holder 9. The drop-off prevention device 25 is provided with a locking member 26 which is arranged parallel to the receiving member 24 and has a receiving groove 26a for guiding and receiving the sleeve 16 provided at the shaft end of the film holder 9. This locking member 26 is connected to the receiving groove 24.
It is attached to the inner end surface of a rotating body 28 which rotates around the axis 27 of the lock bearing plate 23, and is fitted into the receiving hole 23a of the lock bearing plate 23 and pivotally supported. When the film holder 9 is attached, the locking member 26 is inserted into the receiving groove 24 of the receiving member 24.
a and the receiving groove 26a of the locking member 26 are aligned, and when using a roll film, the locking member 26 can be rotated so as to be located at the locking position where the receiving grooves 24a and 26a intersect. .

A rotating shaft 29 is protruded from the outer end surface of the rotating body 28, and this rotating shaft 29 is rotatably supported on a bearing 31 of the side plate 2 via a spring 30 that urges the rotating body 28 inwardly. A handle 32 is attached to the outer end of the moving shaft 29. Further, a positioning pin 35 is implanted at a predetermined position on the circumferential surface of the rotating body 28, and by turning the handle 32, the positioning pin 35 is inserted into the stopper 36.
When the locking member 24 is brought into contact with the locking member 26, the receiving groove 24a of the receiving member 24 and the receiving groove 26a of the locking member 26 are aligned with each other at this position.

Reference numeral 33 is a name plate for the handle that displays a mark 34 indicating the attachment/detachment position and the lock position. After closing the opening/closing lid 5 of the magazine box, turn the handle 32 while looking at this mark 34. Then, perform a locking operation on the end of the film holder shaft. Reference numeral 15 denotes a braking leaf spring that comes into contact with the shaft end 12 of the film holder 9 to suppress free rotation of the film holder 9.

The film take-out section 40 includes a slit-shaped film take-out port 42 opened in the magazine box 1, a pair of film feed rollers 6 provided in the magazine box 1 opposite to the film take-out port 42, and a film take-out port 42 formed in the magazine box 1. It is composed of a shutter device 43 provided on the outside.

One side of the film feed roller 6 is a drive roller 6a, and the other side is a presser roller 6b. A knob 6c is fixed to the front outer end of the drive roller shaft, and a connecting gear 6d is fixed to the rear end of the drive roller shaft. When setting the film, the presser roller 6b is separated and the leading edge of the film is held between the film drive roller 6a.
Then, turn the knob 6c so that the leading edge of the film faces in front of the film outlet 42. Note that the reference numeral 41 is a film guide plate.

A shutter device 43 is provided outside the film outlet 42. This shutter device 43
As shown in FIGS. 3 and 4, the shutter plate 44 includes a shutter plate 44 and a base plate 46 that is swingably attached to the base plate 46 by a link mechanism 45. The opening 42 is pressed by a leaf spring 47 so as to open and close the film outlet 42, thereby blocking light. Note that the reference numeral 48 is an upper cover of the shutter device 43.

When this roll film magazine is installed in a copying machine, a connecting gear 6d provided at the rear end of the drive roller shaft of the film feed roller 6 engages with a drive gear (not shown) on the copying machine side. At this time,
The shutter plate 44 is provided with its rear end 44a protruding outside the rear end of the magazine box 1,
The shutter plate 44 opens the film outlet 42 by abutting the rear end 44a with a shutter opening member (not shown) provided on the side of the copying machine.

In FIG. 6, reference numeral 50 is a device for displaying the remaining amount of film, and this remaining film amount display device 50 is a display plate provided outside the front end side plate of the magazine box 1, as shown in FIGS. 5 and 6. 51
, a pointer 52 , and a sliding contact piece 53 that comes into sliding contact with the outer diameter of the roll film 7 held by the film holder 9
and a connecting shaft 54 that connects the sliding contact piece 53 and the pointer 51, and the sliding contact piece 53 is connected to the connecting shaft 5.
It is swingably biased via a weak coil spring 55 provided at the roll film 7, and is configured to follow the outer diameter of the roll film 7 and display the remaining amount of film.

7 to 9 show a second embodiment of the present invention, in which FIG. 7 is a sectional view of the main part of the roll film magazine, and FIG. 8 is one of the bearing fittings 20A in FIG. 7.
FIG. 9 is a perspective view showing the other bearing fitting 2 in FIG.
FIG. 3 is a side view taken along line X-X showing 0B. In these figures, the same reference numerals as in the first embodiment represent the same members.

The second embodiment exemplifies a pair of drop-off prevention devices constituting the bearing portion, one of which is different from the other.

The bearing tool 20A on the right side of FIG. 7 is the receiving groove 24a.
a receiving member 24 fixed to the side plate 2, and a fitting hole 6 for pivotally supporting the shaft end 12 of the film holder 9.
A pivot member 60 having a diameter 0a, disposed in parallel to the receiving member 24, and biased by a spring 61 toward the film holder in the axial direction.

The bearing fitting 20B on the left side of FIG. 7 has the same basic structure as the bearing fitting 20 of the first embodiment, and the handle 3
2a is in the magazine box 1, and the rotating body 2
The difference is that it is provided on the outer end surface of 8a.

In the second embodiment, the film holder 9 is attached as follows. First, the opening/closing lid of the magazine box is opened, and one shaft end 12 of the film holder 9 is inserted into the insertion hole 60a of the pivot member 60. At this time, when the pivot member 60 is pushed by the shaft portion 12, it can escape in the direction of arrow C against the spring 61. Next, by operating the handle 32a, the receiving groove 24a of the receiving member 24 and the locking member 26
The receiving grooves 24a, 2 are aligned with the receiving grooves 26a.
6a to pivotally support the sleeve 16 of the other shaft end 12, operate the handle 32a again to intersect the receiving groove 24a and the receiving groove 26a, rotatably support the shaft end 12, and rotate the magazine box 1. Close the lid. The film holder 9 can be removed by reversing the above procedure.

<Effects of the Invention> Since the roll film magazine according to the invention includes the bearing device configured as described above, it has the following effects.

B. The film holder will not wobble or fall off the bearing no matter how you orient the magazine, such as horizontally or upside down.

(b) This makes it easy to install the magazine in a copying machine without requiring special care when carrying or handling the magazine.

C. Also, depending on the model of copying machine, it is necessary to provide the film ejection port of the magazine on the bottom, side, or top surface of the magazine box, but with the roll film magazine of the present invention, the film holder does not fall off. It can be positioned in any way. This eliminates the need to create separate magazines for each model as in the past, which is convenient for standardizing magazines.

[Brief explanation of the drawing]

1 to 6 show a first embodiment of the present invention, in which FIG. 1 is an exploded perspective view of a bearing, FIG. 2 is an exploded perspective view of a magazine, and FIG. 3 is a side sectional view thereof. FIG. 4 is a front view of the magazine, FIG. 5 is a sectional view taken along the - arrow in FIG. 4, and FIG. 6 is a side view of FIG. 7 to 9 show a second embodiment of the present invention, and FIG. 7 is a sectional view of the main part of the magazine;
FIG. 8 is a perspective view of one bearing device, FIG. 9 is a side view of the other bearing device taken along the line X--X, and FIG. 10 is an exploded perspective view of a main part of a conventional example. 1... Magazine box, 2, 3... Side plate, 6
... Film feed roller, 7 ... Roll film, 9 ... Film holder, 12 ... Shaft end, 16 ... Sleeve, 20, 20A, 20B ...
...bearing tool, 24...receiving member, 24a...receiving groove,
25... Fall prevention device, 26... Lock member, 26
a... Receiving groove, 40... Film ejection part, 42...
Film outlet, 43... Shutter device, 60
... Pivotal support member, 60a ... Fitting hole.

Claims (1)

[Claims for Utility Model Registration] 1. A pair of bearings for rotatably supporting the film holder are provided in a light-tight magazine box having a film ejecting section, and the shaft end of the film holder can be attached to and removed from the bearings. In a roll film magazine configured such that the roll film held by the film holder is taken out from the film take-out section, the bearing tool has a receiving groove that guides and receives the shaft end of the film holder to support the shaft of the magazine. It is characterized by being composed of a pair of receiving members fixed to the box, and a pair of fall prevention devices that rotatably support the shaft end supported in the receiving groove and prevent it from falling off. Roll film magazine. 2. The pair of drop-off prevention devices each include a locking member having a receiving groove that is arranged in parallel with the receiving member and guides and receives the shaft end of the film holder, and the locking member rotates about the axis of the receiving groove. It is provided so that it can rotate between the attachment/detachment position and the lock position, and when the locking member is in the attachment/detachment position, the receiving groove of the receiving member and the receiving groove of the locking member are aligned, so that the shaft end can be detachably attached to the shaft. A roll film magazine as set forth in claim 1 of the Utility Model Registered Claim, wherein the receiving grooves intersect with each other in the lock position to pivotably support the shaft end without falling off. 3. The pair of drop-off prevention devices include a pivot support member, one of which has a fitting hole for pivotally supporting the shaft end, is arranged in parallel with the receiving member, and is elastically biased toward the film holder in the axial direction. The other has a receiving groove for guiding and receiving the shaft end, and a locking member is provided in parallel with the receiving member,
The locking member is provided so as to be rotatable between the attachment/detachment position and the locking position with the axis of the receiving groove as the center of rotation, and when the locking member is in the attachment/detachment position, the receiving groove of the receiving member and the receiving groove of the locking member are in contact with each other. Request for registration of a utility model in which the shaft end is removably supported by alignment, and in the locked position, the receiving grooves intersect to support the shaft end without falling off. The roll film magazine described in Item 1. 4. The film ejecting section comprises a slit-shaped film ejecting port opened in a magazine box, and a pair of film feeding rollers provided in the magazine box opposite to the film ejecting port. A roll film magazine according to any one of claims 1 to 3 of the utility model registration claim, wherein the roll film magazine is configured to shield the ejection port from light. 5. The roll film magazine described in claim 4 of the utility model registration, which is provided with a shutter device at the film outlet.