JP2919197B2 - Single-sheet sheet mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet-sheet-feeding mechanism for taking out stacked sheets one by one and sending them to a transport mechanism.

[0002]

2. Description of the Related Art In order to transport a laminated sheet (for example, a photographic photosensitive material such as a film) to an exposure position, or to transport to a developing position after image recording is completed, a sheet unit is used. Have been.

[0003] The sheet body single-wafer apparatus usually includes a plurality of suction disks connected to a negative pressure generating device, and the suction disk is pressed against the uppermost sheet member to operate the negative pressure generating device. The sheet body is sucked down, sequentially taken out, and then sent out to the transport mechanism side.

In this case, the transport mechanism usually includes a pair of transport rollers that are in sliding contact with each other, and after the leading end of the sheet body sucked and held by the suction disk is inserted between the pair of transport rollers, the transport mechanism is moved. The sheet is conveyed to a predetermined portion, for example, to the automatic developing device side under the rotation of the roller pair.

[0005]

However, in the above-mentioned sheet-sheet-feeding apparatus, the leading edge of the sheet held by the suction disk cannot be held down by the suction disk because the suction edge of the sheet body cannot be sucked by the suction disk. Easy to bend. Therefore, in order to insert the leading end of the sheet member between the pair of conveying rollers that are in sliding contact with each other, it is necessary to control the position of the suction plate with high precision, and this type of control is considerably complicated. turn into. In addition, the front end of the sheet is bent (curled) in advance.
Occurs, it becomes impossible to insert the leading end portion between the pair of conveying rollers.

Therefore, a transport mechanism including a transport roller and a swingable nip roller is used. In this transport mechanism, after the suction plate holding the sheet body is moved beyond the transport roller, the nip roller swings from the rear end side of the sheet body, and the sheet body is pinched between the nip roller and the transport roller. Further, the sheet body is conveyed under the cooperation of the conveying roller and the nip roller.

However, in the above-described transport mechanism, a dedicated drive mechanism for swinging the nip roller is required in addition to a drive mechanism for moving the suction plate, so that the entire sheet transport apparatus is complicated and expensive. There is a problem that it becomes. In addition, since the suction disk is moved to the front in the transport direction beyond the transport roller, the moving distance of the suction disk is lengthened, and the efficiency of sheet-sheet-feeding operation is not easily achieved.

The present invention is to solve this kind of problem. The stacked sheets can be taken out one by one reliably and quickly, and can be smoothly fed to a transport mechanism. It is an object of the present invention to provide a sheet body single-sheet mechanism that can be simplified.

[0009]

In order to achieve the above object,
In the present invention, the stacked sheets are taken one by one.
Sheet unit mechanism for feeding
And the stacked sheet body and the transport mechanism
Between the mounting member that is movable betweenProvided
And the uppermost sheet body of the stacked sheet bodies
Suction means for sucking and holding, and being held by the mounting member,
While moving integrally with the suction means,
Nipping and transporting the sheet body in cooperation with the transport roller
A pressing roller for performingThe mounting member is laminated
When it is moved to the side of the sheet body,
The detected detection rod comes into contact with the uppermost sheet and is driven.
By doing so, the movement of the mounting member can be performed at a low speed.
Film surface detecting means for controlling;It is characterized by having
I do.

Further, the present invention relates to a sheet body sheet feeding mechanism for taking out stacked sheet bodies one by one and sending out the sheet body to a conveying mechanism, wherein a sheet body between the stacked sheet bodies and the conveying mechanism is provided. a mounting member which is movable, said al attached to the attachment member is a suction means for sucking and holding the sheet of the uppermost sheet body being the stacked, held in the mounting member, integrally with the adsorbing means , A pressing roller for nipping and conveying the sheet body in cooperation with a conveying roller constituting the conveying mechanism, guide means for guiding the mounting member along a predetermined trajectory, and the mounting member the holding in a predetermined position relative to the guide means, wherein the posture holding means for guiding the sheet material which is attracted and held by the suction cups until sandwiched possible position to the conveying roller and the pressing roller, the preparative Sheet body member is a laminated
When moved to the side, the detection rod provided on the mounting member
Is driven in contact with the uppermost sheet body.
A file for controlling the movement of the mounting member at a low speed.
And a memory surface detecting means .

[0011]

In the sheet-sheet-feeding mechanism according to the present invention, after the uppermost sheet is adsorbed by the adsorbing means, the adsorbing means and the sheet are moved toward the transport mechanism under the action of moving the mounting member. . At that time, the pressing roller moves toward the conveying roller that constitutes the conveying mechanism integrally with the suction unit, and the sheet body is quickly and reliably sandwiched between the pressing roller and the conveying roller. Therefore, the efficiency of the sheet-by-sheet processing can be easily improved.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a sheet-fed sheet mechanism according to the present invention.

In FIG. 2 and FIG.
2 shows an automatic feeding device incorporating the sheet body sheet feeding mechanism according to the first embodiment. The automatic supply device 10 includes a casing main body 12, and a cover member 14 is attached to an upper front portion of the casing main body 12 so as to be openable and closable. A lock member 28 is swingably attached to a distal end portion of the cover member 14, and a claw portion 30 of the lock member 28 can be engaged with a locking portion 32 provided on a distal end surface of the casing body 12. .

A film mounting portion 34 is formed on the bottom of the casing body 12 which can be opened and closed by the cover member 14. A vertical surface 36 is provided on the leading end side of the film mounting portion 34 in the film feeding direction (the direction of the arrow A) so as to be directed in the vertical direction, and a locking portion 38 is provided at a predetermined height of the vertical surface 36. It is formed. The film mounting section 34 is at a predetermined angle θ ° with respect to the horizontal direction (actually, 5 ° to 45 °,
More preferably, the film mounting portion 34 is provided with a plurality of positioning means 42a to 42f corresponding to photographic photosensitive materials (sheets) S having different dimensions. 4).

The positioning means 42a includes a circular recess 4
4A, there is provided a first contour portion 46a having a size smaller than a predetermined size of the photosensitive material S, and a second contour portion 48a provided outside the first contour portion 46a. The second contour 48a is set to be lower than the height of the first contour 46a, and the corner Sa (see FIG. 4) and the contour of the photosensitive material S corresponding to the positioning means 42a are the second contour 48a. (See FIG. 5).

The other positioning means 42b to 42f are constructed in the same manner as the positioning means 42a, and the same components are denoted by the same reference numerals b to f and detailed description thereof is omitted. .

In the first embodiment, the photographic photosensitive materials S stacked on the film mounting portion 34 are taken out one by one into the casing body 12 and sent out to a transport mechanism (to be described later) which is a predetermined portion. Such a sheet body single-wafer mechanism 50 is provided. As shown in FIG. 1, a pulley 56 is fixed to a rotation shaft 54 of a rotation drive source 52 constituting the sheet-body sheet-feeding mechanism 50, and a pulley 58 disposed above the pulley 56.
A timing belt 60 is stretched between and the pulley 56. The pulley 58 is fixed to one end of the rotating shaft 61, and the pulley 62 is fixed to the other end of the rotating shaft 61. The pulley 62 and the pulley 64 are attached to the timing belt 66 in parallel with the timing belt 60. Is installed. Guide bars 68 and 70 are erected near and parallel to the timing belts 60 and 66, respectively.
2a and 72b are fixed, and the
The guide bars 68 and 70 are inserted through a and 72b.

The fulcrums 74a, 74 are attached to the lifts 72a, 72b.
One ends of the plate bodies 76a and 76b are supported via b, and pin members 78a and 78b are inserted through the other ends of the plate bodies 76a and 76b. The pin members 78a and 78b are fixed to rocking plates (mounting members) 80a and 80b, and both ends of the tension springs 82a and 82b are fixed to the rocking plates 80a and 80b and the lifts 72a and 72b. . Elevating table 72a,
Stopper pins 84a, 84b and stopper pins 85a, 85b are fixed to 72b, and tension springs 82a, 82b are provided.
b, the plate members 76a, 76b and the stopper pins 84a, 84b engage with each other,
a and 80b are the stopper pins 84a, 84b and 8
5a, 85b and a predetermined angle corresponding to the inclination of the film mounting portion 34, specifically, an angle θ ° from the vertical direction (see the vertical line V in FIG. 7) to the arrow A direction ( In practice,
5 ° to 45 °, more preferably 10 °).

At the upper ends of the oscillating plates 80a and 80b, arcuate surfaces 86a and 86b are provided.
86b is freely engageable with the outer peripheral surfaces of rollers (fixed fulcrum members) 88a and 88b supported in the casing body 12. At the lower ends of the rocking plates 80a and 80b, both ends of a horizontally long mounting base 90 are fixed.

As shown in FIG. 1 and FIG.
Are attached to the suction disks 9a and 92b which are long in the direction of arrow B perpendicular to the direction of arrow A.
A negative pressure generator (not shown) communicates with 2a and 92b via pipes 94a and 94b. The suction disks 92a and 92b are provided with fine unevenness, that is, satin-like rough surface portions 95a and 95b on the suction surface in contact with the photographic material S.

A pressing roller 96 is provided between the suction plates 92a and 92b.
Is mounted so that it can move forward and backward. The pressing roller 96 is rotatably held by a support plate 98, and guide rods 100 a and 100 b provided on the support plate 98 are attached to the mounting table 9.
0 and is pressed downward via a spring (biasing member) 104 externally mounted on a rod 102 fixed to the support plate 98. Here, only the spring 104 is provided, but a damper for controlling the movement may be used together.

The mounting table 90 is provided with a film surface detecting means 106 near the suction disk 92a. The film surface detecting means 106 includes a detecting rod 110 which is urged downward via a spring 108.
On the upper end side of 10, a detection unit 112 such as a proximity sensor driven by the detection rod 110 is provided.

A transport mechanism 120 is provided adjacent to the sheet-body sheet-feeding mechanism 50. As shown in FIGS. 7 to 9, the transport mechanism 120 includes a rotary drive source 122, and a pulley 126 is fixed to a rotary shaft 124 of the rotary drive source 122 so that the pulley 126 and the other pulleys 128 and 130 are fixed to the pulley 126. A round belt 132 is stretched. The pulley 128 is fixed to an end of the first transport roller 134, and the pulley 130 is
The nip roller 140 is fixed to the end of the transport roller 136 and slidably contacts the second transport roller 136 via the pressing force of the springs 138a and 138b. A guide plate 142 for guiding the photographic material S in the direction of arrow A is provided near the second transport roller 136, and a film outlet 146 is provided on an extension of the guide plate 142 (see FIG. 3). ).

As shown in FIGS. 2 and 3, an LED display 170 is provided on the upper part of the casing body 12. The LED display unit 170 includes a display unit main body 174 that is openably and closably mounted in a concave portion 172 formed in an upper portion of the casing main body 12, and a bar 176 is provided at a rear end of the display unit main body 174. The display unit main body 174 is urged in the opening direction through the elastic force of springs 178a and 178b provided on the outer surface 176. Display unit 1
74 and the inner wall of the recess 172,
A latch means 179 capable of holding the LED 1 in the concave portion 172 is provided.
80a and 180b are provided.

The automatic feeder 10 constructed as described above
Is mounted on the mounting portion 202 of the automatic developing device 200 (see FIG. 3). A film inlet 204 is formed in the mounting portion 202 so as to communicate with the film outlet 146 of the casing body 12, and a pair of transport rollers 206 is provided in the film inlet 204.

Next, the sheet body single-wafer mechanism 5 according to the present embodiment
The operation of 0 will be described in relation to the automatic supply device 10.

In the dark room, first, the lock member 28 provided on the cover member 14 is pressed, and the claw portion 30 is
Be removed from. In this state, after the cover member 14 is opened upward, a plurality of photographic photosensitive materials S are stacked and accommodated on the film mounting portion 34 via, for example, the positioning means 42a. Then, the operator confirms the position of the corner Sa of the photosensitive material S with the finger, and this corner Sa is the first corner.
The work of adjusting the position of the photographic photosensitive material S is performed so as to be located outside the outline 46a and within the width of the second outline 48a. After the photographic photosensitive materials S are stacked and accommodated in the film mounting section 34, the cover member 14 is closed.

The photographic material S used is an LED.
When there is a risk of exposure with light from 180a and 180b, the display unit main body 174 constituting the LED display unit 170 is pressed in advance toward the concave portion 172 side of the casing main body 12 so that this display is performed via the latch means 179. The main body 174 may be housed in the recess 172.

Next, at the position shown in FIG. 7, the rotary drive source 5 constituting the sheet body single-wafer mechanism 50 according to the present embodiment.
2 is driven, and the pulley 56 is rotated via the rotation shaft 54, the timing belt 60 stretched between the pulley 56 and another pulley 58, the pulley 62 and the pulley 64
Lift 7 via a timing belt 66 stretched between
2a and 72b descend integrally. For this reason, the swing plate 8
0a, 80b and the mounting base 90 descend, and
When the detection rod 110 constituting the film surface detection means 106 provided on the uppermost photographic photosensitive material S abuts on the uppermost photographic photosensitive material S, the upper end side of the detection rod 110
2 is driven. The drive of the rotary drive source 52 is controlled based on this signal, and the lowering operation of the mounting table 90 becomes slow, so that when the pressing roller 96 and the suction plates 92a and 92b engage with the photosensitive material S, No unnecessary external force is applied to the material S. Thereby, it is possible to effectively prevent the pressure fogging or the like from occurring on the photographic material S.

When the mounting table 90 is lowered, the pressing roller 96 first comes into contact with the photosensitive material S, and then the suction plate 92a,
92b is engaged with the photographic material S, and the suction disks 92a, 92 are operated under the action of a negative pressure generator (not shown).
The photographic light-sensitive material S is absorbed by 2b (see FIG. 8). In this state, the rotation drive source 52 is driven in the opposite direction to the above, the mounting table 90 is raised via the elevating tables 72a and 72b, and the uppermost photographic photosensitive material S adsorbed on the suction disks 92a and 92b is removed. The film is taken out from the film mounting section.

The mounting base 90 is raised to swing plates 80a, 80
After the arcuate surfaces 86a, 86b of b have engaged the rollers 88a, 88b, when the mounting base 90 further rises, the plates engaged with the rocking plates 80a, 80b via the pin members 78a, 78b. The bodies 76a, 76b are fulcrums 74a, 7
4b. Therefore, the swing plate 80
a and 80b swing toward the transport mechanism 120 against the tension springs 82a and 82b with the rollers 88a and 88b as fulcrums, so that the leading ends of the photographic photosensitive material S sucked and held by the suction disks 92a and 92b are moved. It is transported to the vicinity of the first transport roller 134 (see FIG. 9).

In this state, when the suction action by the suction disks 92a and 92b is released, the pressing roller 96 projects toward the first transport roller 134, and the photographic photosensitive material S is formed by the pressing roller 96 and the first transport roller 134. Is pinched. The rotation drive source 12 that constitutes the transport mechanism 120
When the pulley 126 is rotated via the rotation shaft 124 under the driving action of the second belt 2, the round belt 132 and the pulleys 128, 1
30, the first and second transport rollers 134, 136
Are rotated synchronously. Thereby, the first transport roller 1
Photosensitive material S sandwiched between the pressure roller 34 and the pressing roller 96
After being fed out by a predetermined distance in the direction of arrow A, the leading end thereof is nipped between the second transport roller 136 and the nip roller 140 and further transported in the direction of arrow A. Accordingly, the photographic photosensitive material S is conveyed from the film outlet 146 to the film introduction port 204 of the automatic developing device 200 under the guiding action of the guide plate 142, is nipped by the conveying roller pair 206, and is conveyed into the automatic developing device 200. Then, a predetermined developing process is performed.

In this case, according to the first embodiment, the rocking plates 80a, 80b are mounted on the elevating tables 72a, 72b, and the mounting table 90 fixed to the lower ends of the rocking plates 80a, 80b. And suction rollers 92a and 92b and pressing roller 96
Are provided. The oscillating plate 8 is held in a state where the photographic photosensitive material S is sucked and held by the sucking plates 92a and 92b.
0a and 80b for the rocking operation.
When is rotated toward the transport mechanism 120, the pressing roller 96 also swings integrally. Therefore, as shown in FIG. 9, the suction plates 92a, 92b are moved under the swinging motion of the swing plates 80a, 80b.
And the pressing roller 96 constitute the first transport mechanism 120.
After being arranged substantially above the transport rollers 134, the suction cups 92a, by suction effect of 92b is released, the pressing roller 96 is first conveying roller by a spring 104 1
34 and the first conveying roller 1
34, the leading end of the photographic material S is clamped.

For this reason, unlike the conventional structure in which the photographic photosensitive material S is sandwiched between the pair of conveying rollers, the suction plate 92
It is not necessary to control the positions of a and 92b with high precision, and even if the leading end of the photosensitive material S is curled in advance, the leading end of the photosensitive photosensitive material S is fixed to the first transport roller 134 and the pressing roller
6 can be securely held. Also, unlike the configuration using a nip roller with a dedicated drive mechanism,
This eliminates the need for a dedicated drive mechanism for the pressing roller 96, thereby providing an effect that the entire sheet-body sheet-feeding mechanism 50 is simplified and inexpensive.

Further, in this embodiment, the pressing roller 96 is constantly pressed downward via the spring 104 provided on the rod 102. Therefore, when the suction disks 92a and 92b that have absorbed the photographic photosensitive material S rise, the pressing rollers 9
6 project downward with respect to the mounting table 90 through the resilient force of the spring 104, and transfer the photographic photosensitive material S to the suction disk 92a,
It is curved downward between 92b. Thereby, the photographic photosensitive material S held by the suction disks 92a and 92b is substantially tilted, and a plurality of sheets of the photographic photosensitive material S can be reliably prevented. is there.

Further, the swing plates 80a, 80b are provided with rollers 88a, 88b fixed in the casing body 12.
Swinging about the fulcrum, the suction boards 92a and 92b can be easily and reliably moved to desired positions.

Further, since the matte-like rough surface portions 95a and 95b are provided on the suction surfaces of the suction plates 92a and 92b,
The contact area with the photographic material S can be reduced. Accordingly, the amount of peeling charge induced when the suction action by the suction disks 92a and 92b is released is reduced at once, and the effect of reliably preventing static marks from being generated can be obtained.

Next, a sheet-fed sheet mechanism according to a second embodiment will be described below with reference to the accompanying drawings.

In FIG. 11, reference numeral 210 denotes a second
9 shows an automatic feeding device incorporating the sheet-body sheet-feeding mechanism according to the embodiment of FIG. The automatic supply device 210 includes a casing main body 212, and a film mounting section 214 is formed on a bottom surface inside the casing main body 212. The photographic photosensitive material S is stacked and accommodated in the film mounting portion 214. At the front upper portion of the film mounting portion 214, the leading end of the photographic photosensitive material S is handled to prevent a plurality of sheets. A protruding member 217 is provided to stand up.

A mounting plate 220 is provided in the casing main body 212. The mounting plate 220 is provided on the rotary drive source 2 which constitutes the sheet-body sheet-feeding mechanism 218 according to the second embodiment.
22 is fixed. As shown in FIG. 12, a pulley 226 is fixed to a rotating shaft 224 of the rotary drive source 222, and a pulley 228a and 228b disposed substantially above and below the pulley 226 and the pulley 226 are connected to a timing belt 230. Is installed. The pulley 228b is fixed to one end of the rotating shaft 232, while
A pulley 234b is fixed to the other end of the pulley 234.
b, a pulley 234a and a pulley 236,
Is installed.

Locking rods 240a and 240b are fixed to the timing belts 230 and 238, respectively.
40a and 240b pass through guide grooves 242a and 242b formed in the mounting plate 220, and the ends thereof are
It is rotatably supported by 44a and 244b. The guide grooves 242a and 242b are used for supporting plate members 244a and 244b.
Guide rollers 246a, 246 provided rotatably on
b for guiding the guide rollers 246
a, 246b has a width corresponding to the diameter thereof, is directed vertically upward along the timing belts 230, 238, then expands in the vicinity of the pulleys 228a, 234a, and further extends vertically downward along the timing belts 230, 238. And end at a predetermined height.

The expanding guide grooves 242a, 242b
The posture holding means 248 of the suction disks 262a and 262b (described later) is mounted on the upper side of the. Posture holding means 248
Is provided with swing plates 252a and 252b that are swingably provided on the mounting plate 220 via fulcrums 250a and 250b,
These rocking plates 252a and 252b are cut out in a longitudinal direction from a substantially middle portion thereof, so that guide rollers 246a and 246b are cut out.
Are provided with openings 254a and 254b having a width that can be freely fitted. The open ends of the openings 254a and 254b are
It expands through a tapered surface inclined outward, and has a guide function for guide rollers 246a and 246b. Rocking plate 2
52a, 252b are held in contact with stopper pins 258a, 258b via tension springs 256a, 256b, and openings 254a, 254b and guide grooves 242a, 242b substantially correspond at this position.

Both ends of a horizontally long mounting table 260 are fixed to the support plates 244a and 244b. As shown in FIG. 10 and FIG. 13, suction plates 262 a and 262 b which are long in the direction of arrow D perpendicular to the sheet-feeding direction of the photographic photosensitive material S (direction of arrow C) are fixed to the mounting table 260. A negative pressure generator (not shown) communicates with the boards 262a and 262b. Press roller 26 between suction disks 262a and 262b
6 is mounted to be able to move forward and backward. This pressing roller 266 is
It is rotatably held by a support plate 268, and guide rods 270a and 270b provided on the support plate 268 are inserted into the mounting table 260, and the support plate 268 is
Is pressed downward via a spring 274 provided on a rod 272 fixed to the rod 272.

A transport mechanism 280 is provided in the vicinity of the sheet body sheet feeding mechanism 218. As shown in FIG. 12, the transport mechanism 280 includes a rotary drive source 282, and a pulley 286 is fixed to a rotary shaft 284 of the rotary drive source 282, and a round belt 292 is attached to the pulley 286 and the other pulleys 288, 290. Is installed. The pulley 288 is fixed to the end of the first conveyance roller 294, and the pulley 290 is fixed to the end of the second conveyance roller 296. The pulley 290 is pressed to the second conveyance roller 296 by a pressing force of a spring (not shown). The nip roller 300 is in sliding contact.

A guide plate 302 for guiding the photographic material S in the direction of arrow C is provided near the second transport roller 296.
Are provided, and a film outlet 306 is provided on an extension of the guide plate 302.

The automatic supply device 210 includes an automatic developing device 40
0 is attached to the attachment portion 402. This attachment part 402
Is formed with a film introduction port 404 that can communicate with the film outlet 306 of the casing body 212.

The operation of the thus-configured sheet-fed sheet mechanism 218 according to the second embodiment will be described below.

First, in a state where the automatic supply device 210 is mounted on the mounting portion 402 of the automatic developing device 400, the photographic photosensitive material S is stacked and stored in the film mounting portion 214 in the automatic supply device 210. Then, when the rotation drive source 222 constituting the sheet-body sheet-feeding mechanism 218 is driven, the pulley 226 is rotated via the rotation shaft 224, and the timing at which the pulley 226 and the other pulleys 228a and 228b are stretched. Timing belt 2 stretched over belt 230 and pulley 236 and pulleys 234a and 234b
The locking rods 240a and 240b are integrally lowered via 38. As a result, the mounting table 26 is supported via the support plates 244a and 244b that engage with the locking rods 240a and 240b.
Then, the pressure roller 266 comes into contact with the uppermost photographic photosensitive material S, and then the suction disks 262a and 262b engage with the photographic photosensitive material S, under the action of a negative pressure generator (not shown). The photographic photosensitive material S is sucked by the suction disks 262a and 262b.

In this state, the rotary drive source 222 is driven in the opposite direction to the above, and the mounting table 260 rises,
The uppermost photographic photosensitive material S adsorbed by 2a and 262b is taken out from the film mounting portion 214. Mounting stand 260
Rises in a desired posture and along a desired trajectory under the guide action of the guide rollers 246a and 246b provided in the support plate bodies 244a and 244b and the guide grooves 242a and 242b formed in the mounting plate 220.

When the mounting table 260 is further raised, the guide rollers 246a and 246b
a, 252b are fitted to the openings 254a, 254b of the pulleys 228a, 244b.
There is no inversion at a position beyond 34a. That is, the guide rollers 246a and 246b located above the locking rods 240a and 240b are
The swing plates 252a and 252b are connected to the tension springs 256a and
It is swung to the right in FIG. 14 against the tensile force of 6b. Therefore, the locking rods 240a and 240b that move integrally with the timing belts 230 and 238 are always located below the guide rollers 246a and 246b, and can prevent the support plates 244a and 244b from being inverted. .

As a result, the suction disks 262a and 262b holding the photographic photosensitive material S are once lowered through the uppermost position (the position corresponding to the upper part of the outer peripheral surface of the pulleys 228a and 234a), and the first conveying roller Move to 294 side. Then, the photographic photosensitive material S is transferred to the first transport roller 29.
4 and the pressing roller 266 and the first transport roller 2
After the front end of the photographic photosensitive material S is sandwiched between the photographic photosensitive material S and the photographic material 94 (see FIG.
5), the suction action of the suction disks 262a, 262b is released, and then the suction disks 262a, 262b escape above the photographic photosensitive material S except for the pressing roller 266.

In a state where the photographic photosensitive material S is sandwiched between the pressing roller 266 and the first transport roller 294, the pulley 286 is driven by the rotary drive source 282 constituting the transport mechanism 280 via the rotary shaft 284. When rotated, the first and second transport rollers 294, 296 are rotated synchronously via the round belt 292 and the pulleys 288, 290. Therefore, the first transport roller 294 and the pressing roller 26
After the photosensitive material S sandwiched between the rollers 6 and 6 is fed out by a predetermined distance in the direction of arrow C, the leading end thereof is sandwiched between the second transport roller 296 and the nip roller 300 and further transported in the direction of arrow C. Accordingly, the photographic material S is conveyed from the film outlet 306 to the film inlet 404 of the automatic developing device 400 under the guiding action of the guide plate 302,
A predetermined developing process is performed in the automatic developing device 400.

As described above, in the second embodiment, the photographic photosensitive material S is nipped between the pressing roller 266 and the first transport roller 294 while being held by the suction disks 262a and 262b. The suction action of 262a and 262b is released. For this reason, the photographic photosensitive material S sheet-fed via the sheet-sheet-sheet-fed mechanism 218 is transferred to the suction disks 262a and 262.
2b can be transferred to the first transport roller 294 more reliably and with high accuracy, and the effect that the sheet-feeding operation of the photosensitive material S can be performed smoothly and efficiently can be obtained.

After the photosensitive material S sucked by the suction disks 262a and 262b is sent out to the transport mechanism 280, the rotation drive source 222 is driven to rotate in the opposite direction, and the mounting table 260 swings. Openings 254a, 254b of plates 252a, 252b and guide rollers 246a, 246b
Is temporarily moved upward under the guide action of Mounting stand 260
Is further lowered under the guide action of the guide grooves 242a and 242b and the guide rollers 246a and 246b, and moves to the film mounting portion 214 side. Then, the next photographic photosensitive material S stacked on the film mounting portion 214 is sucked, and the next photographic photosensitive material S is carried into the automatic developing device 400 from the transport mechanism 280 in the same manner as the above operation. .

[0055]

According to the sheet-fed sheet mechanism according to the present invention, the following effects can be obtained.

The adsorbing means for adsorbing the uppermost sheet member comprises:
Since the sheet body is moved to the transport mechanism side via the mounting member, the sheet body can be quickly and reliably sandwiched between the transport roller constituting the transport mechanism and the pressing roller provided on the mounting member. Therefore, efficient sheet-by-sheet work can be performed with a simple structure.

[Brief description of the drawings]

FIG. 1 is an explanatory perspective view of a sheet-body sheet-feeding mechanism according to a first embodiment of the present invention.

FIG. 2 is a schematic perspective view of an automatic feeding device incorporating the sheet body sheet feeding mechanism.

FIG. 3 is a longitudinal sectional view of the automatic supply device.

FIG. 4 is an explanatory plan view of a film mounting portion constituting the automatic feeding device.

FIG. 5 is a sectional view taken along line VV in FIG.

FIG. 6 is an explanatory front view of the sheet body single-wafer mechanism.

FIG. 7 is a schematic side view of the sheet body single-wafer mechanism.

FIG. 8 is an explanatory diagram of the operation of the sheet body single-wafer mechanism.

FIG. 9 is an explanatory view of the operation of the sheet body single-wafer mechanism.

FIG. 10 is a perspective view illustrating a sheet-body sheet-feeding mechanism according to a second embodiment of the present invention.

FIG. 11 is a longitudinal sectional view of an automatic feeding device incorporating the sheet body single-sheet mechanism.

FIG. 12 is a longitudinal sectional view showing a drive system of the automatic supply device.

FIG. 13 is an explanatory front view of the sheet body single-wafer mechanism.

FIG. 14 is an explanatory view of the operation of the sheet body single-wafer mechanism.

FIG. 15 is an operation explanatory view of the sheet body single-sheet mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Automatic supply apparatus 12 ... Casing main body 14 ... Cover member 34 ... Film placement part 42a-42f ... Positioning means 50 ... Sheet-sheet single-sheet mechanism 52 ... Rotation drive source 71 ... Moving means 72a, 72b ... Elevating stand 80a, 80b ... Oscillating plates 88a, 88b. Rollers 90. Mounting bases 92a, 92b. Attraction plates 95a, 95b .. Rough surface portions 96. Pressing rollers 104. Springs 106. Film surface detecting means 120. Transport mechanisms 134, 136. Transport rollers 140. Nip roller 146 ... Film outlet 200 ... Automatic developing device 210 ... Automatic feeding device 218 ... Sheet sheet and sheet feeding mechanism 220 ... Mounting plates 240a and 240b ... Locking rods 242a and 242b ... Guide grooves 246a and 246b ... Guide rollers 248 ... Position Holding means 252a, 252b ... rocking plates 254a, 254b ... Mouth 260 ... mount 262a, 262b ... suction cups 266 ... pressing roller 280 ... transport mechanism 294, 296 ... conveying rollers 306 ... film outlet 400 ... automatic developing apparatus

Claims (5)

(57) [Claims] 1. A sheet feeding mechanism for taking out stacked sheets one by one and sending out the sheets to a conveying mechanism, wherein the sheet mechanism is movable between the stacked sheets and the conveying mechanism. a mounting member, said al attached to the attachment member is a suction means for sucking and holding the sheet of the uppermost sheet body being the stacked, held in the mounting member, while moving integrally with the adsorbing means A pressing roller for nipping and transporting the sheet body in cooperation with a transport roller constituting the transport mechanism, and the mounting member being moved to the sheet body side on which the stacked body is laminated.
When the detection rod is provided on the mounting member,
Driven by contacting the next sheet
Film surface detection hand that controls the movement of the attached member at low speed
And a step . 2. The sheet feeding mechanism according to claim 1, wherein the pressing roller is configured to protrude more toward the sheet body than the suction surface of the suction unit, and presses the pressing roller toward the sheet body. A sheet-feeding-sheet mechanism, comprising a biasing member for performing the operation. 3. The sheet-fed sheet mechanism according to claim 1, wherein the mounting member is swingably mounted, and is capable of moving forward and backward with respect to the uppermost sheet of the stacked sheets. A fixed fulcrum member for engaging with the end of the mounting member when the lifting pedestal moves and swinging the mounting member toward the transport mechanism with the engagement position as a fulcrum; A sheet body single-wafer mechanism comprising: 4. A sheet body sheet feeding mechanism for taking out stacked sheet bodies one by one and sending out the sheet body to a transport mechanism, wherein the sheet body mechanism is movable between the stacked sheet bodies and the transport mechanism. a mounting member, said al attached to the attachment member is a suction means for sucking and holding the sheet of the uppermost sheet body being the stacked, held in the mounting member, while moving integrally with the adsorbing means A pressing roller for nipping and transporting the sheet body in cooperation with a transport roller constituting the transport mechanism; a guide means for guiding the mounting member along a predetermined trajectory; held in a predetermined posture relative to the posture holding means for guiding to sandwich possible position with the pressing roller and the conveying roller of the sheet material which is attracted and held on the suction cup, the mounting member is the product It is moved to the sheet side, which is
When the detection rod is provided on the mounting member,
Driven by contacting the next sheet
Film surface detection hand that controls the movement of the attached member at low speed
And a step . 5. The sheet feeding mechanism according to claim 1, wherein said suction means includes a suction disk, and said suction disk has a matte rough surface portion on a suction surface in contact with the sheet member. The sheet body single-sheet mechanism characterized by being provided.