JP3427473B2 - Film transport device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film conveying device, and more particularly to a film conveying device applied to a camera, a film scanner or the like which uses a film cartridge in which a photographic film is wound around a single spool and stored. Regarding

[0002]

2. Description of the Related Art Conventionally, a film transporting apparatus of this type transports a photographic film by engaging a sprocket with perforations densely formed at regular intervals in the longitudinal direction of the photographic film and driving the sprocket. ing. On the other hand, as disclosed in US Pat. No. 4,977,419, one perforation is applied for each frame.
A photo film has been proposed in which one perforation is provided and this perforation is used only for detecting the position of the frame. Also,
The conventional film cartridge before using the photo film is
The leader portion of the photographic film is exposed from the film cartridge. However, as disclosed in US Pat. No. 4,933,693, even before the photographic film is used, all the photographic films including the leader portion are in the film cartridge. There has been proposed a film cartridge which is stored and whose leader portion is not exposed.

By the way, when a photo film having no perforations for carrying the photo film as described above is automatically conveyed from the film cartridge whose leader is not exposed, the spool of the film cartridge is rotated by a motor. It is considered that the photographic film is sent out from the film cartridge, and the sent photographic film is nipped by a capstan and a pinch roller and conveyed to the film winding section.

[0004]

However, in the above-mentioned film transporting apparatus, if the motor for rotating the spool, the capstan or the like is stopped for some reason during the transportation of the photographic film, the film transporting apparatus must be disassembled. For example, there is a drawback that the photo film cannot be stored in the film cartridge.

The present invention has been made in view of the above circumstances, and it is possible to reliably store a photographic film stopped during transportation in a film cartridge without disassembling the film transportation device. The purpose is to provide.

[0006]

In order to achieve the above-mentioned object, the present invention uses a film cartridge in which a photographic film is wound and stored in a single spool, and one end of the spool of the film cartridge is used. A photographic film between a film supply unit including a motor that engages a portion to rotate the spool and a film winding unit including a take-up reel that winds the photographic film supplied from the film supply unit. A film transport device for transporting, comprising a film storing means for engaging the other end of the spool of the film cartridge and rotating the spool by being manually rotated to store the photographic film in the film cartridge . The film storing means is the film
The position at which the other end of the cartridge spool engages
Free to slide between the other end of the pool and the retracted position
And the pin located at the other end of the spool.
It consists of a spring that urges in the direction to retract from the
The pin is pushed against the biasing force of the spring and
It is characterized by being engaged with the other end of the spool and being manually rotated .

[0007]

According to the present invention, when the motor for conveying the photographic film is stopped for some reason during the conveyance of the photographic film, the film storing means engaged with the other end of the spool of the film cartridge is manually rotated. The photo film is forcibly stored in the film cartridge.

As a result, according to the present invention, the photographic film stopped during transportation can be reliably stored in the film cartridge without disassembling the film transportation device. According to a second aspect of the present invention, the film storage means is arranged on the side surface of the main body housing of the film transport apparatus, and the film storage means can be operated from the outside of the main body housing. As a result, in the present invention, the operability is improved as compared with the case where the film storage means is operated inside the main body housing.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a film transporting apparatus according to the present invention will be described in detail below with reference to the accompanying drawings. Figure 1
FIG. 2 is a side view showing an embodiment of the film transport device according to the present invention, and FIG. 2 is a plan view thereof. This film transporting device is applied to a camera or a film scanner, and a film supply unit 14 in which a film cartridge 12 is mounted and a photographic film 16 supplied from the film supply unit 14 are provided in a main body housing 10. And a film winding section 18 for winding the film. Further, a guide member 20 for guiding the photographic film 16 is provided between the film supply unit 14 and the film winding unit 18, and the guide member 20 holds the photographic film 16 and conveys the pair of capstans. The pinch roller 22 and the pinch roller 24 are arranged at a predetermined interval.

The photographic film 16 used in the film transport device is, for example, one frame 16A as shown in FIG.
Has a perforation 16B at the front end of
Film cartridge 1 with a single spool 12A
It is wound inside 2 so that everything can be stored. No perforations are formed in the leader portion 16C of the photographic film 16. That is, the perforation 16B is used to specify the image area of one frame 16A.

As shown in FIG. 2, the film supply section 14 includes a forward / reverse rotation motor 26, a gear 28 with a clutch, and a spool 12A of the film cartridge 12.
2 includes an engagement portion 30A that engages with an upper end portion in FIG.
And the spool 1 is driven by the driving force of the motor 26.
It is configured so that 2 A can be rotated normally / reversely. The clutch-equipped gear 28 is inserted into a rotary shaft 32 of the motor 26, and a friction clutch 36 such as a felt is pressed and abutted by a biasing force of a spring 34 inserted into the rotary shaft 32. Further, the gear 28 is used for the motor 2
1 is completely locked with respect to the rotary shaft 32 when it is rotated clockwise by the driving force of FIG. 6, and when it is rotated counterclockwise in FIG. Is slower than the rotational speed of the capstan 22, the friction clutch 36 acts to rotate the rotary shaft 32.
It is supposed to slip against.

The film winding section 18 is provided with a winding reel 38. The take-up reel 38 is rotatable by a driving force from a motor (not shown), and by being rotated, the photographic film 16 conveyed from the film cartridge 12 can be wound. A pair of film pressing rollers 40, 40 are pressed against the surface of the take-up reel 38. These pressing rollers 40 are urged toward the center of the take-up reel 38 by a spring 42. As a result, the take-up reel 38
The photographic film 16 wrapped around the press roller 4 is
It is wound in a state of being closely attached to the take-up reel 38 by 0.

On the other hand, a forced film storage mechanism 50, which is a film storage means, is arranged on the lower end side of the spool 12A of the film cartridge 12 in FIG. The forced film storage mechanism 50 has a recessed portion 1 formed at an end portion (lower end in FIG. 2) 13 of the spool 12A, as indicated by a chain double-dashed line in FIG.
It has a pin 52 that engages with 3A. The pin 52
Are arranged in a bearing member 54 formed in a tubular shape. The pin 52 will be described later.

The bearing member 54 is the main body housing 10.
It is rotatably supported around its axis in a support ring portion 56 formed so as to project on the inner wall surface 10A. In addition, the bearing member 5
4 has a protruding piece portion 55 at the left end in the drawing, which engages with the recess 13A of the spool 12A when the film cartridge 12 is mounted.
Are formed. Thereby, the bearing member 54 is
The spool 12A is driven to rotate with the rotation of the spool 12A.

The pin 52 is slidably arranged in the axial direction of the bearing member 54, and the spring 58 is inserted between the pin 52 and the bearing member 54 to the right in the figure, that is, the spool 12A. Is urged in the direction of retracting from the recess 13A. Further, a pair of claws 53, 53 engaging with the recess 13A is provided at the left end of the pin 52 in the figure.
Are formed to project. Further, a hexagonal hole 60 is formed on the left end surface of the pin 52 in the drawing, and a jig insertion hole 62 is opened on the side surface of the main body housing 10 corresponding to the hexagonal hole 60.

Next, the operation of the film transporting device constructed as described above will be described. First, the film cartridge 12 is attached to the film supply unit 14, and the spool 12A of the film cartridge 12 is attached to the film supply unit 14.
It is rotatably supported by the engaging portion 30A and the bearing member 54. Photo film 1 from film cartridge 12
When 6 is sent out, the motor 26 is driven in the normal direction to rotate the spool 12A in the counterclockwise direction in FIG. 1 and rotate the capstans 22 and 22 in the clockwise direction in FIG. As a result, the photographic film 16 is delivered from the film cartridge 12, and the delivered photographic film 16 is nipped by the pair of capstans 22 and the pinch rollers 24 and conveyed to the film winding section 18. Then, the photographic film 16 is taken up by the take-up reel 38 rotating counterclockwise in FIG.
Further, if the motor 26, the capstans 22 and 22, and the take-up reel are rotated in the opposite direction, the photographic film 16 taken up by the take-up reel 38 can be stored in the film cartridge 12. You can

Next, in the case where the motor 26, the capstan 22, or the motor for driving the take-up reel is stopped due to some factor (motor failure, gear lock, etc.) while the photographic film 16 is being conveyed. explain. As described above, when the photographic film 16 is stopped during transportation, a jig (not shown) capable of engaging with the hexagonal hole 60 of the pin 52 from the jig insertion hole 62 of the main body housing 10 shown in FIG. Is inserted and the tip of the jig is engaged with the hexagonal hole 60. And
The pin 52 is moved to the left in FIG.
It is pushed against the urging force of the pin 52 to engage the claws 53 of the pin 52 with the recess 13A of the spool 12A. In this state, the jig is manually rotated from the outside of the main body housing 10 in the clockwise direction in FIG. 1 to rotate the spool 12A in the clockwise direction, and the stopped photographic film 16 is forced into the film cartridge 12. Store.

As a result, in this embodiment, the photographic film 16 stopped during transportation can be reliably stored in the film cartridge 12 without disassembling the film transportation device. Further, in this embodiment, since the pin 52 of the film compulsory storage mechanism 50 can be operated from the outside of the main body housing 10, the operation can be performed more easily than the operation of the pin 52 inside the main body housing. it can.

In the film compulsory storage mechanism 50 of this embodiment, the photographic film 1 is operated by operating the pin 52 as described above.
Although the structure for housing 6 is described above, the structure is not limited to this, and may be any structure as long as the spool 12A can be manually rotated. In addition, the spool 12A of the film cartridge 12
1 is not limited to the shape shown in FIGS. 1 and 4, that is, the stopper plate 13B is formed at the center of the recess 13A. For example, as shown in FIG. 5 (A), a hook-shaped recess 15
One in which A is formed and one in which a cross-shaped recess 15B is formed as shown in FIG. Therefore, the shape of the claw of the pin 52 of the film forced storage mechanism 50 may be formed corresponding to the shape of the recesses 15A and 15B shown in FIGS. 5 (A) and 5 (B).

[0020]

As described above, according to the film transport apparatus of the present invention, when the motor is stopped for some reason during the transport of the photographic film, the film engaged with the other end of the spool of the film cartridge. Since the storage means is manually rotated to forcibly store the photo film in the film cartridge, the photo film stopped during transportation can be securely stored in the film cartridge without disassembling the film transport device. be able to.

Further, according to the film transport apparatus of the present invention, the film storage means is arranged on the side surface of the main body housing of the film transport apparatus, and the film storage means can be operated from the outside of the main body housing. The operation of the means can be performed easily.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a film transport device according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a cross-sectional view showing an embodiment of a film compulsory storage mechanism of the film transport device.

FIG. 4 is an explanatory view of a photographic film applied to a film transport device.

5A and 5B are front views showing another embodiment of the spool end shape.

[Explanation of symbols]

10 ... Main body housing 12 ... Film cartridge 14 ... Film supply section 16 ... Photo film 18 ... Film winding section 50 ... Film forced storage mechanism 52 ... pin 60 ... Hexagonal hole 62 ... Hole for inserting jig

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Claims (2)

(57) [Claims] 1. A film cartridge comprising a photographic film wound and stored in a single spool, the motor having a motor for engaging one end of the spool of the film cartridge to rotate the spool. Supply section,
A film transporting device for transporting a photographic film to and from a film winding part provided with a take-up reel for winding the photographic film supplied from the film supply part, wherein the other end of the spool of the film cartridge is engaged. And a film accommodating means for accommodating the photo film in a film cartridge by rotating the spool by manually rotating the spool , and the film accommodating means is a film cartridge of the film cartridge.
The position that engages with the other end of the pool and the other end of the spool
Pin that is slidably arranged between the retracted position and
And in a direction to retract the pin from the other end of the spool.
The pin consists of a spring for urging
The other end of the spool is pushed in against the urging force of the ring.
The film transfer device is characterized in that it is engaged with and is rotated manually . 2. The film accommodating means is arranged on a side surface of a main body housing of the film transporting device, and is operated from the outside of the main body housing.
The film transport device described.