JPH048129Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a film enveloper for storing photographic negative film in a negative sheet.

A film enveloper that stores a negative film cut into a predetermined length by a film cutter into each storage part of the negative sheet while the negative sheet is conveyed one by one by a fixed size, which is made up of a number of bag-shaped negative film storage parts arranged in series. There is a manual type film enveloper that operates the film cutter manually, but in the conventional manual type film enveloper, the work of storing the negative film onto the negative sheet was also performed manually. This not only increases the number of manual operations, making the process complicated, but also causes inconveniences such as the inability to perform the work quickly. Therefore, it is known that the negative film is conveyed using a negative film conveying roller consisting of a pinch roller that can move toward and away from the negative film. When the film was cut by cutting the film, the negative film transport roller was used to feed the film, so the negative film transport roller had to be installed between the film cutter and the negative sheet. It is necessary to secure a space equal to the depth of the storage section for the negative sheet between the camera and the film inlet/outlet for the negative sheet, which has the drawback that the negative film becomes long in the running direction. It was necessary to manually feed it to the position, and this operation was troublesome. Furthermore, there are also known devices that use a sensor or the like to detect the position of the negative film and operate the negative film transport roller.
Such sensors are not only expensive, but also have the disadvantage of causing malfunctions due to noise and the like.

This idea was made in view of the above points,
It is an object of the present invention to provide a film enveloper having a simple structure, good reliability, and a film transport mechanism that can be easily operated.

In order to achieve the above-mentioned object, the present invention provides that while a negative sheet consisting of a number of bag-shaped negative film storage sections is conveyed one by one by a fixed size by a transfer roller, the inside of each negative film storage section of the negative sheet is transferred by a transfer roller. In a film enveloper, which is made up of a negative sheet containing negative film cut to a predetermined length, there is a constantly rotating drive roller and a crimping bond attached to the tip of a lever plate to bring it into contact with and away from the drive roller. a negative film transport roller formed by a roller is disposed on the front side of the film cutter in the running direction of the negative film, and a rotary shuttle that rotates following the rotation of the film cutter is connected to the film cutter, A rotating plate is attached to the end of the rotating shaft via a floating transmission mechanism that does not transmit rotational force over a certain angle range in the rotating direction,
A pressing roller separation biasing member is attached to the rotating plate, the other end of the rotating plate is brought into contact with the rear end of the lever plate, and the pressing roller is urged to be separated from the drive roller. In addition, when the film cutter is rotated by a certain amount in a direction opposite to the film cutting direction and the urging member for separating the pressing roller is released through the rotating plate, the pressing roller is The present invention is characterized in that the lever plate is provided with an urging member for pressing the pressure roller into pressure contact with the drive roller.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. First, reference numeral 1 in FIG. The negative sheet 2 fed out from the negative sheet 1 is transported by a transport roller 3 over a negative sheet guide 4 in fixed size increments with the width of the storage section of the negative sheet 2 as one pitch. Further, 5 is a negative film reel attached to a support 6, and a negative film 7 is fed out from the reel 5.
The negative film guide 1 is moved by the negative film transport roller 9 with a pair of tension rollers 8a and 8b applying an appropriate tension to the extent that it does not bend.
The negative sheet 2 is conveyed with its upper side toward the film inlet/outlet in the negative sheet storage section. The negative film transport roller 9 consists of a constantly rotating drive roller 9a and a pressure roller 9b that comes into contact with and separates from the drive roller 9a. The negative film 7 is conveyed in fixed size increments toward the negative sheet 2 storage section (second
(see figure).

In this way, negative sheet 2 and negative film 7 are
While the negative film 7 is being transported, the negative film 7 is inserted into each storage section of the negative sheet 2, and is cut into a predetermined length by a film cutter 11 provided on the negative sheet guide 4 side of the negative film transport roller. Thereafter, by operating the rear end insertion lever 12, the rear end of the negative film 7 is pushed by a rear end pushing member (not shown) that comes out and retracts from the slit groove 13, and the negative film 7 is inserted into the storage section of the negative sheet 2. Store it completely. When one film of negative film 7 is stored in a predetermined number of storage sections of the negative sheet 2, the cutter operating lever 14 is used to cut the negative sheet 2 with a cutter (not shown) installed in the negative sheet cutter unit 15. It is constructed so that it can cut and envelop each film individually.

Next, the negative film transport mechanism will be explained based on FIG.

Therefore, the film cutter 11 has a fixed blade 11a.
A grip 16 is attached to the tip of the rotating blade 11b, and a block 17 is fixed to the base end of the rotating blade 11b. Rotating shaft 1
8 is attached, and the rotating shaft 18 is configured to rotate following the rotating blade 11b. The block 17 has a rotating blade 11.
A spring 19 is provided that biases the rotary shaft 18 away from the fixed blade 11a, and the intermediate portion of the rotary shaft 18 is rotatably supported by a holder 20 containing a bearing. On the other hand, the other end of the rotating shaft 18 is loosely fitted into a curved portion 21 a formed on one side of a rotating plate 21 , and a long groove 22 is bored in the middle of the rotating plate 21 . A shaft rod 24 erected on the top plate 23 is inserted through it. A spring 25 is provided between the upper end flange portion 24a of the shaft rod 24 and the rotating plate 21 to press the rotating plate 21 downward. The other end of the rotary plate 21 is brought into contact with one end of a lever plate 26 formed in an L-shape, and the lever plate 26 is pivotally supported by a shaft 27 at its intermediate portion. A pressure roller 9b is rotatably supported at the end. Further, a long groove 28 is formed in the lever plate 26 near the contact portion with the rotating plate 21, and in the long groove 28, a shaft rod 29 provided upright on the top plate 23 is formed.
is inserted, and supported by the shaft rod 29, a spring 30 is compressed between the top plate 23 and the lever plate 26,
Due to the action of the spring 30, the lever plate 26 urges the pressure roller 9b attached thereto in a direction approaching the drive roller 9a. Since the pressure roller 9b is weaker than the spring force, the pressure roller 9b is maintained at a predetermined distance from the drive roller 9a. In this way, the spring 25 is connected to the driving roller 9a by the pressing roller 9b to which the lever plate 26 is attached via the rotating plate 21.
The spring 30 constitutes a biasing member for separating the pressure roller, which holds the pressure roller at the position indicated by the solid line in FIG.

Further, a control pin 31 is inserted into the fitting portion of the rotating shaft 18 with the rotating plate 21 in a direction perpendicular to the axis of the rotating shaft 18, and a control pin 31 is inserted into the curved portion 21a of the rotating plate 21. A notch 32 is formed to allow the pin 31 to pass through, and the distance between the leading end side rising wall 32a and the intermediate side rising wall 32b of the notch 32 is such that the rotary blade 11b rotates to remove the negative film 7. Between the cutting position and the neutral position where the acting force applied to the rotary blade 11b is released and the rotary blade 11b is in a free state and separated from the fixed blade 11a by a predetermined angle by the action of the spring 19. The setting is such that the control pin 31 can be rotated at .

Therefore, the control pin 31 and the notch 32 constitute a floating transmission mechanism that does not transmit the rotational force of the rotary shaft 18 over a certain angular range.

When the rotating blade 11b is further rotated in a direction away from the fixed blade 11a from the neutral position, the rotating plate 21 is rotated by the control pin 31 in a direction against the spring 25, and this rotation causes Leopard plate 26
The pressure roller 9b is rotated about the shaft 27 by the spring 30, and the pressure roller 9b is brought into contact with the drive roller 9a, and is displaced to the conveying position shown by the dashed line in FIG.

Furthermore, a disk-shaped locking plate 35 having a notch 34 is fixedly provided on the drive shaft 33 that drives the transfer roller 3 of the negative sheet 2 at one location on the outer peripheral surface.
The locking plate 35 can rotate together with the drive shaft 33. On the other hand, a mounting plate 36 is provided at the lower end of the block 17, and a lock pin 37 is protruded from the mounting plate 36. The transfer of the negative sheet 2 by the transfer roller 3 is carried out in fixed size increments with the width of the storage section being one pitch, and this fixed size transfer is configured such that one rotation of the drive shaft 33 corresponds to one pitch. ing. Therefore, the aforementioned lock pin 37 is attached to the locking plate 35 at the neutral position of the rotary blade 11b.
The notch 34 of the locking plate 35 faces the lock pin 37 when the drive shaft 33 is stopped.

As shown in FIG. 4, when the rotary blade 11b is in the neutral position, the pressure roller 9b is separated from the drive roller 9a and cannot convey the negative film 7. At this time, the control pin 31 is in contact with the rising wall 32a of the notch 32 of the rotating plate 21.

Next, as shown in FIG. 5, when the rotary blade 11b is rotated to the operating position for cutting the negative film 7, the control pin 31 rotates together with the rotary shaft 18, causing the rotary plate 21 to cut. The rotation plate 2 rotates until it comes into contact with the rising wall 32b of the notch 32.
Since no force acts on 1, the pressure roller 9
b and the drive roller 9a are maintained in a spaced apart state.

However, as shown in FIG. 6, when the rotating blade 11b is rotated from the neutral position in a direction further away from the fixed blade 11a and displaced to the conveying position, the control pin 31 moves the upright wall 32a of the notch 32. By pushing, the rotating plate 21 is rotated about its curved portion 21a in a direction against the spring 25. As a result, the lever plate 26 is rotated about the shaft 27 by the action of the spring 30, and the pressure roller 9b comes into contact with the drive roller 9a, thereby conveying the negative film 7 inserted therebetween. When the negative film 7 has been conveyed by a predetermined amount, the rotary blade 11b is released, the pressure roller 9b is separated from the drive roller 9a, and the conveyance of the negative film 7 is stopped.

Here, while the negative sheet 2 is being transported, it is necessary to prevent the negative film 7 from being transported unnecessarily, but while the transport roller 3 that transports the negative sheet 2 is rotating, the locking plate 35 also rotates together with its drive shaft 33. Even if an attempt is made to move the rotary blade 11b to the conveying position shown in FIG. 6, the lock pin 37 comes into contact with the outer peripheral surface of the locking plate 35, and the movement to the conveying position is locked. Then, when the transfer of negative sheet 2 is completed,
Since the notch 34 of the locking plate 35 stops at the position facing the lock pin 37, the rotary blade 11b can be rotated to the transport position. Therefore, the negative sheet 2 and the negative film 7 are reliably prevented from moving at the same time, and no malfunction occurs in the envelope operation.

As described in detail above, the present invention maintains the pressure roller of the negative film transport roller in a state separated from the drive roller when the film cutter is in the neutral position and when it is rotated from the neutral position to the film cutting position. Then, the conveyance of the negative film is stopped, and when the film cutter is rotated by a predetermined amount in the opposite direction to the cutting direction beyond the neutral position, the pressure roller is brought into contact with the drive roller and the negative film is conveyed. Therefore, by simply rotating the film cutter, the negative film can be conveyed and cut reliably without malfunction, and the operability is improved. Since the device can be provided on the front side of the cutter, the device can be formed compactly, and furthermore, the device can have a simple structure and be manufactured at low cost.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention;
Fig. 2 is an external view of the negative film transport mechanism, Fig. 3 is an explanatory diagram of the operation of the lever plate, and Figs. 4 to 6 are explanatory diagrams of the operation of the negative film transport mechanism showing different operating states. . 2... Negative sheet, 7... Negative film, 9...
... Negative film transport roller, 9a ... Drive roller, 9b ... Pressure roller, 11 ... Film cutter, 11a ... Fixed blade, 11b ... Rotating blade, 1
8... Rotating shaft, 21... Rotating plate, 25, 3
0... Spring, 26... Leopard plate, 27... Shaft, 31
... Control pin, 32 ... Notch, 33 ... Drive shaft, 34 ... Notch, 35 ... Locking plate, 37 ...
Lock pin.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) While a negative sheet consisting of a number of negative film storage sections arranged in a bag shape is transported by a fixed size by a transfer roller, a certain amount of space is stored in each negative film storage section of the negative sheet. A film enveloper, which is made up of a negative sheet containing negative film cut to length, has a constantly rotating drive roller, a pressure roller attached to the tip of a lever plate to bring it into contact with and away from the drive roller. A negative film conveying roller formed of the above film cutter is disposed on the front side of the film cutter in the running direction of the negative film, and the film cutter includes:
A rotating shaft that rotates following the rotation is connected, and a rotating plate is attached to the end of the rotating shaft via a floating transmission mechanism that does not transmit rotational force over a certain angle range in the rotating direction. The other end of the rotating plate is brought into contact with the rear end of the lever plate, and the pressing roller separation biasing member that urges the pressing roller to be separated from the drive roller is rotated. When the film cutter is rotated by a certain amount in a direction opposite to the film cutting direction and the biasing force of the pressing roller separation biasing member is released via the rotating plate, the A film enveloper characterized in that the lever plate is provided with a pressing member for pressing the pressing roller against the driving roller. (2) A locking member is attached to the drive shaft that drives the negative sheet transport roller, and while the drive shaft is rotating, the film cutter is locked by the locking member and moves in the opposite direction to the film cutting direction. Claims for registration of a utility model characterized in that a locking member for regulating the film cutter is attached to the film cutter.
The film enveloper described in (1).