JP2862113B2 - Film holder - 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 holder,
More particularly, the present invention relates to a film holder which is attached to the back of a camera and which allows a photographic film package to be taken in and out.

[0002]

2. Description of the Related Art As a professional photographic film, a photographic film package in which a relatively large-sized sheet-like photographic film is light-tightly stored in a light-shielding envelope is known. The photo film package is constructed by inserting a film unit into a light-shielding envelope, and the film unit is composed of the photo film and a carrier sheet. Also,
A clip is attached to the leading edge of the film unit, and the clip can close the insertion opening of the light-shielding envelope when the film unit is stored in the light-shielding envelope.

The photographic film package is inserted into a film holder mounted on the back of a camera, with the clip as a tip. By operating the release lever of the film holder, the clip is locked in the film holder main body. At the time of photographing, the rear end portion of the light-shielding envelope is pinched with a finger to pull out only the light-shielding envelope, and the photo film is exposed through an exposure opening formed in the film holder. When the photographing is completed, the light-shielding envelope is pinched and pushed with a finger, the insertion opening of the light-shielding envelope is closed with a clip, and the film unit is housed in a light-tight manner. After the release lever is set to the release position, the rear end of the light-shielding envelope is pinched by a finger, and the light-shielding envelope is pulled out of the film holder together with the film unit.

Conventionally, this type of film holder has a structure in which a pressing plate, an engagement claw, a release lever and the like are provided on a film holder main body. The pressing plate is a photo film package inserted in a film holder body,
The release lever is pressed and held toward the exposure opening, and is always urged toward the exposure opening unless the release lever is set at the release position.

The engaging claw is engaged with a clip of the film unit to hold the film unit in the film holder so that the film unit is not taken out together with the light-shielding envelope at the time of photographing. On the other hand, the release lever simultaneously releases the pressing of the pressing plate and the engagement of the engaging claw, and by setting this release lever to the releasing position, the pressing plate moves in the direction in which the pressing plate is retracted from the film unit. At the same time, the engaging claw is moved in the direction of releasing from the clip. As a result, the photographed film package for which photographing has been completed can be taken out of the film holder main body.

[0006]

However, in the conventional film holder, when the light-shielding envelope is pulled out of the film holder body at the time of photographing, the light-shielding envelope may be pulled out obliquely. In this case, there is a disadvantage that the film unit is pushed by the light-shielding envelope and the photographing frame is inclined, or the film unit is damaged and the photographic film is adversely affected and the focus is shifted.

Another drawback is that if the light-shielding envelope is pulled out strongly, the stopper tape is damaged. The present invention has been made in view of such circumstances, and an object of the present invention is to provide a film holder that guarantees that a light-shielding envelope can be reliably pulled out.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a film unit having a clip attached to a leading edge of a photographic film and a leader attached to a trailing edge. And a light-shielding envelope for storing the photo film in a light-tight manner, wherein the photo film package is accommodated in a film holder for accommodating the photo film package and an exposure for exposing the photo film. A film holder main body having an opening formed therein, and a member engaged with the clip to lock the film unit in the film holder main body when the photo film package is inserted into a final position in the film holder main body. And a pressing member disposed in the film holder main body and pressing the film unit toward the exposure opening. A guide member formed in the film holder main body in the direction in which the photo film package is inserted, and an operation plate guided by the guide member, moved in and out of the film holder main body, and moved in and out together with the light shielding envelope. It is characterized by.

[0009]

The operation of taking and taking out a photo film package using the film holder of the present invention will be described. (1) First, a photo film package is inserted from the entrance of the film holder main body with the clip as a tip.

(2) When the photographic film package is inserted and arranged at the final position, the clip engages with the engaging member and the film unit is locked in the film holder body. (3) At the time of next photographing, only the light-shielding envelope is held by the holding portion of the operation plate, and the operation plate is pulled out of the film holder main body along the guide member. Accordingly, the light-shielding envelope is pulled out along with the guide member along with the operation plate, so that the light-shielding envelope can be reliably pulled out. When the light-shielding envelope is pulled out in this manner, the photographic film of the film unit is exposed to the exposure opening because the film unit is held by the clip. The film unit is fixed to the film holder main body by being pressed toward the exposure opening by a pressing plate. The photo film is taken in this state.

(4) Next, when the photographing is completed, the light-shielding envelope is held by the holder, the operation plate is stored in the film holder body along the guide member, and the film unit is stored in the light-shielding envelope. Remove the photo film package from the film holder body. On the other hand, by attaching the marking means to the holding portion, a mark can be given to the light-shielding envelope when the light-shielding envelope is held by the holding portion. As a result, the photographed film package for which photographing has been completed can be easily determined.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the film holder according to the present invention will be described below in detail with reference to the accompanying drawings. First, a photographic film package used for the film holder of the present invention will be described.

As shown in FIG. 17, the photographic film package 1 comprises a film unit 2 indicated by a dotted line in the figure and a light-shielding envelope 3. The film unit 2 has a photo film F, and a clip 5 is provided on the leading edge (left side in the figure) of the photo film F via a first carrier sheet 4.
Is fixed. This clip 5 is, as shown in FIG.
The cross section is formed in a substantially V shape. As shown in FIG. 17, a trapezoidal second carrier sheet 6 is detachably joined to the rear edge (right side in the figure) of the photo film F. The second carrier sheet 6 is located near the rear end of the light-shielding envelope 3 when the film unit 2 is stored in the light-shielding envelope 3.

The light-shielding envelope 3 is made of a light-shielding member such as a cardboard, and the film unit 2 is put in and taken out from an insertion port (not shown) on the left side in the direction of the arrow in the figure. Also,
When the film unit 2 is stored in the light-shielding envelope 3, the insertion opening is fitted into the clip 5 and closed. As a result, exposure of the photographic film F is prevented. Further, a belt-shaped stopper tape 7 is adhered in the transverse direction of the light-shielding envelope 3 near the tip of the light-shielding envelope 3.

FIG. 1 is a plan view showing an embodiment of a film holder 10 according to the present invention, and FIGS.
0 is an assembly drawing. The film holder 10 includes a film holder body 12, engagement plates 14, 14, a slide plate 16,
It has a slider 18, a pressing plate 20, a draw-out mechanism 22 for the photographic film package 1, and the like.

First, the film holder body 12 will be described. The film holder body 12 is, as shown in FIG.
The bottom cover 24 and the top cover 26 constitute a box. A rectangular exposure opening 28 is formed on the upper surface of the film holder body 12, that is, on the surface of the upper lid 26. A cover 30 shown in FIG. 2 is fixed to the right edge of the film holder body 12 in the drawing. An entrance 32 of the photo film package 1 is formed in the longitudinal direction of the cover 30.
From 2, the photographic film package 1 is put into and taken out of the film holder main body 12 with the clip 5 at the tip.

The bottom cover 24 is, as shown in FIGS.
The cross section is formed in an uneven shape having a convex portion 34 and concave portions 36, 36. The convex portion 34 is formed along a direction in which the photographic film package 1 is taken in and out as indicated by a two-dot chain line in FIG. 5, and has a function as a guide rail of a drawer mechanism 22 described later. (Hereinafter, the protrusion 34 will be described as a guide rail.) An opening 38 is formed at the tip of the guide rail 34, and from this opening 38, as shown in FIG. The dovetail 40 is projected.

A guide groove 42 is formed in the vicinity of the opening 38 along the direction in which the photo film package 1 is inserted and removed. The slider 18 is slidably mounted in the guide groove 42. The slider 18 will be described later. On the other hand, as shown in FIG. 2, legs 45, 45,. .

Next, the engagement plate 14 will be described. The engagement plate 14 is formed of an elastic member, and is fixed to a plate-like cover 46 having a right end 14a shown in FIG. At the left end of the engagement plate 14, the above-described engagement claw 40 is formed by bending. The engaging claw 40 protrudes from the opening 36 of the guide rail 34 through a cutout groove 50 formed in an operation plate 48 described later, and engages with the clip 5 of the photo film package 1 as shown in FIG. Are combined.

Next, the slide plate 16 will be described.
The slide plate 16 is formed in a substantially rectangular shape as shown in FIG. 4, and is disposed between the above-described press plate 20 and the guide rail 34 (see FIG. 8). Also, the slide plate 16
Has a pair of long holes 52, 52 parallel to the guide rail 34.
Are formed. The slide plate 16 has the long hole 52,
With screws 54, 54 attached via 52
The photo film package 1 is provided on the guide rail 34 and slidably disposed along the long hole 52, that is, along the direction in which the photo film package 1 is inserted and taken out.

A hook 56 is fixed to the rear end of the slide plate 16. The hook 56 is connected to a spring 58
Via a pin 60 implanted on the guide rail 34. As a result, the slide plate 16 is urged by the urging force of the spring 58 in the direction of the arrow in FIG. A forked arm member 6 is provided at the tip of the slide plate 16.
2 and 62 are formed integrally with the slide plate 16, and stopper portions 64,
64 are formed by bending. The stopper 64,
Reference numeral 64 denotes a photo film package 1 as shown in FIG.
Is brought into contact with the clip 5 when it is inserted.

Further, the leading edge of the slide plate 16
The hook 66 is fixed as shown in FIG. This hook 6
6 is connected to a pin 70 implanted in the slider 18 via a spring 68. Note that the spring 68 is weaker than the spring force of the spring 58 described above. When the slide plate 16 is disposed on the guide rail 34, the pin 70 projects from an elongated hole 72 formed in the slide plate 16 and
Multiplied by The elongated hole 72 is provided in the guide rail 3.
4 are formed. Thereby, the slide plate 1
6 is urged against the slider 18 by the urging force of the spring 68 in the direction in which the photo film package 1 is taken out.

Next, the slider 18 will be described. The slider 18 is slidably disposed in the guide groove 42 of the guide rail 34, and the guide rail 34 and the slide plate 1
6 and held between them. In addition, the slider 18
When the slide plate 16 is slid from the position shown in FIG. 8 to the position shown in FIG. 10, the spring 68 urges the slide plate 16 in the direction in which the photo film package 1 is inserted.

Next, the drawer mechanism 22 will be described.
As shown in FIG. 3, the drawer mechanism 22 has an operation plate 48, a handle 74, and a holding plate 76. The handle 74 is fixed to the rear end of the operation plate 48, and A plate 76 is rotatably mounted via pins 78,78. The operation plate 48 is disposed between the guide rail 34 and the cover 46 shown in FIG.
Is provided so as to be slidable along. As shown in FIG. 9, the handle portion 74 is formed with an opening 82 for taking the photo film package 1 in and out. Accordingly, the photographic film package 1 is inserted into the film holder main body 12 through the opening 82 and the above-described entrance 32.

As shown in FIG. 3, a stamp 84 is fixed to the surface of the holding plate 76. As shown in FIG. 11, the stamp 84 includes a handle 74 and a holding plate 76.
When the light-shielding envelope 3 is interposed between the light-shielding envelope 3 and the light-shielding envelope 3, a mark such as “photographed” can be given to the light-shielding envelope 3. On the other hand, a link 86 shown in FIG. The link 86 can rotate around the shafts 88, 88 when the shafts 88, 88 fixed to both sides thereof are loosely fitted into grooves 90, 90 formed in the operation plate 48. As shown in FIG. 8, the distal end portion 92 of the link 86 includes the photo film package 1 and the film holder main body 1.
When it is not inserted into the slide 2, it is pushed by the engagement plate 14 and is positioned in the guide groove 42 of the slide plate 16, thereby suppressing the movement of the slider 18.

Next, the operation of taking the photographic film package 1 in and out using the film holder 10 constructed as described above will be described. (1) First, as shown in FIG. 9, the holding plate 76 of the pull-out mechanism 22 is rotated in the direction of the arrow to retract from the opening 82, and then the photographic film package 1 is used with the clip 5 as a tip and the film holder body 12 Insert inside.

(2) When inserted, the clip 5 of the photo film package 1 is
The stopper portions 64 are pushed by the photo film package 1 and move together with the photo film package 1 from the position shown in FIGS. 7 and 8 in the insertion direction of the photo film package 1. At this time, the slider 18 is urged in the insertion direction of the photo film package 1 in conjunction with the movement of the slide plate 16,
, The movement is suppressed.

(3) When the photographic film package 1 is inserted and arranged at the final position, the clip 5 engages with the engaging claw 40 of the engaging plate 14 to move the film unit 2 (see FIG. 12) to the film holder body 12. Hold within. (4) Next, when photographing, as shown in FIG. 11, only the light-shielding envelope 3 is held by the handle 74 of the drawer mechanism 22 and the holding plate 74. Then, the operation plate 48 is pulled out from the film holder main body 12 as shown in FIG. This allows
Since the light-shielding envelope 3 is pulled out along the guide rail 34 together with the operation plate 48, it is possible to guarantee that the light-shielding envelope 3 is securely pulled out. Also, when the light-shielding envelope 3 is pulled out like this,
Since the film unit 2 is held by the clip 5, the photographic film F of the film unit 2 exposes the exposure opening 28. The film unit 2 includes a pressing plate 2
When the film is held in the film holder main body 12 by being pressed toward the exposure opening 28 by 0, an image is taken. At this time, the slider 18 is released from the restraint by the link 86, and moves in the inserting direction of the photo film package 1 by the urging force of the spring 68 to close the guide groove 42.

(5) Next, when the photographing is completed, the light-shielding envelope 3 is held by the handle portion 74 and the holding plate 74 as shown in FIG. Then, the operation plate 48 is housed in the film holder main body 12 as shown in FIG. 13, and the film unit 2 is housed in the light shielding envelope 3 as shown in FIG. (6) At this time, the engagement plate 14 is elastically deformed around the fulcrum 14a and bent downward by the pressure contact of the link 86, so that the engagement with the clip 5 is released.

(7) When the engagement with the clip 5 is released, the photographic film package 1 is taken out from the film holder body 12 as shown in FIG. This allows
The photo film package 1 can be easily taken out of the film holder main body 12. (8) When the photographic film package 1 is taken out, the slide plate 16 is moved by the urging force of the spring 68 as shown in FIG.
The slider 18 returns to the original position as shown in FIG. 8, and the slider 18 returns to the original position shown in FIG. As a result, the link 86 is pushed by the elastically deforming engagement plate 14 to be positioned in the guide groove 42, and
At the same time, the engagement plate 14 returns to the original position.

Therefore, according to the film holder 10 of the present invention, since the light-shielding envelope 3 can be reliably pulled out,
Compared with the conventional film holder, it is possible to prevent the inclination of the photographing frame, the shift of the focus, and the like. Further, by attaching a marking means such as a stamp 84 to the holding plate 76 of the drawer mechanism 24, it is possible to attach a mark such as photographed to the light-shielding envelope 3. Thus, the photographed film package 1 for which photographing has been completed can be easily determined. Note that the stamp 84 may be attached to the handle 74 side.

[0032]

As described above, according to the film holder of the present invention, the light-shielding envelope is drawn out together with the operation plate, so that the light-shielding envelope can be reliably pulled out. As a result, it is possible to prevent the inclination of the photographing frame, the shift of the focus, and the like as compared with the conventional film holder.

Further, since the marking means is attached to the holding portion attached to the rear end of the operation plate, the photographed film package whose photographing has been completed can be easily determined.

[Brief description of the drawings]

FIG. 1 is a plan view including a partially broken portion of a film holder according to the present invention.

FIG. 2 is an assembly view of the film holder according to the present invention.

FIG. 3 is an assembly view of the film holder according to the present invention.

FIG. 4 is an assembly view of a main part of the film holder according to the present invention.

FIG. 5 is a perspective view of a film holder according to the present invention.

FIG. 6 is a sectional view taken along the line 6-6 in FIG. 5;

FIG. 7 is an overall operation explanatory view of the film holder according to the present invention.

FIG. 8 is an explanatory diagram of an operation of a main part of the film holder according to the present invention.

FIG. 9 is an explanatory view of the overall operation of the film holder according to the present invention.

FIG. 10 is an explanatory diagram of an operation of a main part of the film holder according to the present invention.

FIG. 11 is an overall operation explanatory view of the film holder according to the present invention.

FIG. 12 is an explanatory diagram of an operation of a main part of the film holder according to the present invention.

FIG. 13 is an overall operation explanatory view of the film holder according to the present invention.

FIG. 14 is an explanatory diagram of an operation of a main part of the film holder according to the present invention.

FIG. 15 is an overall operation explanatory view of the film holder according to the present invention.

FIG. 16 is an explanatory diagram of an operation of a main part of the film holder according to the present invention.

FIG. 17 is a plan view of a photographic film package used for the film holder according to the present invention.

FIG. 18 is a side view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Film holder 12 ... Film holder main body 14 ... Engagement plate 16 ... Slide plate 18 ... Slider 20 ... Pressing plate 22 ... Pull-out mechanism 24 ... Bottom cover 26 ... Top cover 28 ... Exposure opening 34 ... Guide rail 40 ... Engagement Claws 42 Guide grooves 44 Plate springs 48 Operation plates 58 and 68 Springs 84 Stamps 86 Links

Claims (3)

(57) [Claims] 1. A film unit having a clip attached to a leading edge portion of a photographic film and a leader portion fixed to a trailing edge portion, and an insertion opening closed by the clip, for storing the photographic film in a light-tight manner. A film holder containing a photo film package, comprising: a photo film package, an entrance to the photo film package, and an exposure opening for exposing the photo film; and a photo film package. An engagement member that engages with the clip to lock the film unit in the film holder main body when the film unit is inserted into the final position in the film holder main body; and A pressing plate that presses toward the exposure opening, and is moved in and out of the film holder body. Film holder, characterized in that it consists of an operation plate which is out moves with serial shielding envelope. 2. A holding portion capable of holding a rear end of the photo film package housed in the film holder main body is attached to a rear end of the operation plate. 1. The film holder according to 1. 3. The film holder according to claim 2, wherein a marking means for marking the light-shielding envelope is attached to the holding portion.