JPH0675293A - Film holder - Google Patents

Abstract

PURPOSE:To provide a film holder by which a photographic film package is easily inserted in and pulled out of a film holder main body and exposed film is surely guaranteed. CONSTITUTION:This film holder is constituted of the film holder main body 12 where an entrance 34 for the photographic film package and an exposure aperture part 32 are formed, an engaging plate 20 holding a film unit in the holder main body 12 by engaging with the clip of the film package, and a pressing plate 22 pressing the film unit toward the aperture part 32 by advancing to the passing area of the film package by interlocking with the movement of a light shielding envelope in a pulling-out direction. Since the plate 22 exists at a position where it is retreated from the passing area of the film package at the time of inserting and pulling out the film package, the entrance 34 becomes wide and the film package is easily inserted in and pulled out of the holder main body 12, then the exposed film is surely guaranteed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film holder,
In particular, the present invention relates to a film holder which is mounted on the back of a camera and into which a photographic film package is put in and taken out.

[0002]

2. Description of the Related Art As a professional photographic film, a photographic film package in which a sheet-shaped photographic film having a relatively large size is housed in a light-shielding envelope in a light-tight manner is known. The photographic film package is configured by inserting a film unit into a light-shielding envelope, and the film unit includes the photographic film and a carrier sheet. Also,
A clip is attached to the leading edge of the film unit, and this clip can close the insertion port 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 the camera, with the clip as the head. By operating the release lever of the film holder, the clip is locked in the film holder body. At the time of taking a photograph, the rear end of the light-shielding envelope is pinched with a finger to pull out only the light-shielding envelope, and the photo film is exposed from the exposure opening formed in the film holder. When the photo-taking is completed, the light-shielding envelope is pinched with a finger and pushed in, the insertion port of the light-shielding envelope is closed with a clip, and the film unit is stored in a light-tight manner. Then, after setting the release lever to the release position, the rear end portion of the light-shielding envelope is pinched with a finger, and the light-shielding envelope is pulled out from the film holder together with the film unit.

Conventionally, a film holder of this type is constructed by providing a film holder main body with a pressing plate, an engaging claw, a release lever and the like. The pressing plate presses and holds the photographic film package inserted in the film holder main body toward the exposure opening, and is always attached toward the exposure opening unless the release lever is set to the release position. It is energized.

Further, the engaging claws engage with clips of the film unit and hold the film unit in the film holder so that the film unit is not taken out together with the light-shielding envelope during photographing. On the other hand, the release lever releases the pressing of the pressing plate and the engagement of the engaging claw at the same time, and by setting the release lever to the releasing position, the pressing plate is retracted from the film unit. While being moved, the engaging claw is moved in the releasing direction with respect to the clip. As a result, the photo film package that has been photographed can be taken out from the film holder body.

[0006]

However, in the conventional film holder, since the pressing plate is constantly biased toward the exposed opening of the film holder body, the entrance / exit of the photographic film package is narrowed, and the pressing bias is applied. It is difficult to store the photo film package in the film holder body because it has to be taken in and out against the photo film package, and when taking the photo film package out of the film holder body after taking a picture, the important photographed film is scratched. There is a risk of it.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a film holder which can easily take a photographic film package into and out of the film holder main body, and which guarantees a photographed film.

[0008]

In order to achieve the above-mentioned object, the present invention comprises a film unit having a clip attached to the leading edge of a photographic film, and an insertion opening closed by the clip. A light-shielding envelope for storing the film in a light-tight manner, and a film holder main body in which a doorway of the photographic film package and an exposure opening for exposing the photographic film are formed in a film holder containing the photographic film package. An engaging member that is provided in the film holder main body, and that engages with the clip when the photo film package is inserted into the final position in the film holder main body to hold the film unit in the film holder main body. The photo film package is moved to the pressing position of the film unit in conjunction with the movement of the light-shielding envelope in the take-out direction. A pressing member for ejecting and pressing the film unit toward the exposed opening, the pressing member being retracted from the pressing position in conjunction with movement of the light-shielding envelope in the insertion direction. .

[0009]

The operation of taking in and out the photographic film package using the film holder of the present invention will be described. (1) First, the photo film package is inserted from the entrance / exit of the film holder body with the clip at the tip. At this time, since the pressing member is at the position retracted from the passage area of the photo film package, the photo film package can be easily inserted into the film holder body.

(2) When the photographic film package is inserted and arranged at the final position, the clip of the photographic film package is engaged with the engaging member and the film unit is held in the film holder body. (3) When taking a picture next time, if only the light-shielding envelope is pulled out, the photo film of the film unit is exposed to the exposed opening of the film holder main body because the photo film unit is held by the clip.

(4) When the light-shielding envelope is pulled out,
In conjunction with this movement, the pressing member advances to the pressing position of the film unit and presses the film unit toward the exposed opening. As a result, the film unit is held in the film holder body by the pressing member. The photo film is taken in this state.

(5) Next, when the photographing is completed, the light-shielding envelope is moved again in the inserting direction. (6) When the light-shielding envelope is moved in the insertion direction, the pressing member retracts from the pressing position of the film unit and returns to the original position in conjunction with this movement. (7) When the film unit is completely stored in the light-shielding envelope, take out the photographic film package from the film holder body. At this time, since the pressing member is returned to the original position, the photographic film package can be easily taken out from the film holder main body.

Therefore, according to the film holder of the present invention, the pressing member is made to advance into the passage area of the photographic film package only when the light-shielding envelope is pulled out from the film holder body, and the film holder body of the photographic film package is taken in and out. Since the entrance and exit is wider than the conventional film holder, the photographic film package can be easily put in and taken out from the film holder main body, and the photographed film can be guaranteed.

[0014]

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

As shown in FIG. 11, the photographic film package 1 comprises a film unit 2 shown by a dotted line in the figure and a light-shielding envelope 3. The film unit 2 has a photographic film F, and a clip 5 is attached to a leading edge portion (left side in the drawing) of the photographic film F via a first carrier sheet 4.
Is fixed. This clip 5, as shown in FIG. 12,
The cross section is formed in a substantially V shape. Further, as shown in FIG. 11, a trapezoidal second carrier sheet 6 is detachably joined to the rear edge portion (right side in the drawing) of the photographic film F. The second carrier sheet 6 is located near the rear end portion 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 cardboard, and the film unit 2 is inserted and removed in the direction of the arrow in FIG. Further, when the film unit 2 is housed in the light-shielding envelope 3, the insertion port is fitted into the clip 5 and closed.
As a result, the photo film F is prevented from being exposed. Further, a band-shaped stopper tape 7 is adhered in the transverse direction of the light-shielding envelope 3 in the vicinity of the tip of the light-shielding envelope 3, and the stopper tape 7 is formed to have a predetermined thickness.

FIG. 1 is a perspective view showing an embodiment of a film holder 10 according to the present invention, and FIG. 2 is an exploded view. The film holder 10 is composed of a film holder body 12, slide levers 14, 14, a slide plate 16, a stopper portion 18, an engaging plate 20, a pressing plate 22 and the like.

First, the film holder body 12 will be described. As shown in FIG. 1, the film holder body 12 is
.., which are formed of a bottom lid 24 and an upper lid 26, and which are formed on the outer peripheral portion of the bottom lid 24 at predetermined intervals, and which are projectingly formed on the outer peripheral portion of the upper lid 26. Is formed into a box by engaging with. A rectangular exposed opening 32 is formed on the front surface of the film holder body 12, that is, on the surface of the upper lid 26. This exposed opening 32 is shown in FIG.
It is an opening for exposing the photographic film F shown in FIG.

At the right edge of FIG. 1 of the film holder body 12, the entrance 3 of the photographic film package 1 described above is provided.
4 is formed, and the photographic film package 1 is put into and taken out from the entrance 34 in the direction of the arrow in the figure. Doorway 3
4 is formed in a size that allows the thickness T and the width B of the photographic film package 1 shown in FIGS. A groove 36 is formed in the center of the left end portion of the bottom lid 24 in FIG.
The groove 36 is formed along the loading / unloading direction of the photographic film package 1. A control plate 38 is provided in the groove 36.

An elongated hole 38a is formed in the control plate 38 along the taking-in / out direction of the photographic film package 1, and the elongated hole 38a is slidable by a bolt 40 screwed into the surface of the groove 36. Supported by. As a result, the control plate 38 is provided slidably along the direction in which the photographic film package 1 is taken in and out. In addition, the control plate 3
The bent right end portion 38b of 8 is an edge portion 16b of a groove 16a formed at a left end portion of a slide plate 16 described later.
Stuck to. Further, a pair of pressing blades 38c, 38c are integrally formed on the control plate 38 by bending. The pressing blades 38c, 38c are bent at a predetermined angle with respect to the control plate 38, are bent, and are pressed against and come into contact with bifurcated guide blades 42, 42 fixed to an engaging plate 20 described later. Further, on both sides of the left end portion of the control plate 38, stopper pieces 38d,
38d is integrally bent. This stopper piece 3
8d and 38d are pressed and brought into contact with stopper pieces 46 and 46 fixed to a slide lever 14 described later via reset levers 44 and 44 rotatably attached to the bottom lid 24.

Next, the slide lever 14 will be described. The slide levers 14 are arranged on both sides of the bottom lid 24 with respect to the direction in which the photographic film package 1 is taken in and out.
A left end portion of a spring 48 is locked to the stopper piece 46 fixed to the slide lever 14, and a right end portion of the spring 48 is locked to a pin 50 projectingly formed on a slide plate 16 described later. As a result, the slide lever 14 is urged by the spring 48 in the taking-out direction of the photographic film package 1, and the slide plate 16 is urged by the spring 48 in the inserting direction of the photographic film package 1.

Further, both ends 14 of the slide lever 14 are
The portions a and 14b are bent and the left end portion 14a is brought into contact with the clip 5 when the photographic film package 1 is inserted as shown in FIG. The right end portion 14b is in contact with both ends of the stopper plate 52 of the stopper portion 18, as shown in FIG. Next, the slide plate 16 will be described.

As shown in FIG. 2, the slide plate 16 is slidably arranged on the bottom lid 24 along the inserting / removing direction of the photographic film package 1 and, as described above, the photographic film package 1 is inserted by the spring 48. Is biased in the direction. In addition, the slide plate 16 has three concave portions 5 on each side of the photographic film package 1 in and out of the photo film package 1.
4, 54 ... Are formed. These recesses 54, 54
Are formed at positions corresponding to the leaf springs 56, 56 fixed to the lower portion of the pressing plate 22 shown in FIG. Further, as shown in FIG. 2, an inclined portion 54a is formed in the concave portion 54.

Next, the stopper portion 18 will be described.
As shown in FIG. 2, the stopper 18 includes the upper plate 18a and the side plate 1
8b and the lower plate of the side plate 18b is fixed to the right edge 16c of the slide plate 16, and the photographic film package 1 is provided in the space between the upper plate 18a and the slide plate 16 as shown in FIG. It is put in and out as shown in. As shown in FIG. 2, the stopper plate 52 described above is arranged on the upper plate 18a. The stopper plate 52 includes
The stopper pieces 53, 53 are formed by bending downward. The stopper plate 52 is urged downward by a plate spring 58 formed integrally with the stopper plate 52.

As a result, the stopper piece 53 is retracted from the passage area 60 of the photographic film package 1 when the end portion 14b of the slide lever 14 is in contact with the stopper plate 52, and the end portion 14b. Figure 7
As shown in FIG. 3, when the photographic film package 1 is moved in the inserting direction, the photographic film package 1 is projected to the passing area 60 and is positioned so as to be engageable with the stopper tape 7 of the photographic film package 1.

Next, the engagement plate 20 will be described. The engaging plate 20 is formed of an elastic member, and a pair of claws 62 in which the opening 20a shown in FIG.
62 is locked and fixed. Further, engagement claws 64, 66, 64 are integrally formed by bending at the left end of the engagement plate 20. These engaging claws 64, 66, 64 are engaged with the clip 5 of the photographic film package 1, as shown in FIG.

Next, the pressing plate 22 will be described. As shown in FIG. 3, the pressing plate 22 is formed by stacking two iron plates 68 and 70. The leaf springs 56, 56 ... And the stopper portion 72 are fixed to the lower surface of the iron plate 70.
By inserting the stopper portion 72 into the boss portion 74 formed on the surface of the bottom lid 24, the pressing plate 22 is attached to the bottom lid 24.
Fixed to. At this time, the lower ends of the leaf springs 56, 56 ... Are fitted into the recesses 54, 54 ... Of the slide plate 16 described above.

As a result, the pressing plate 22 moves to the leaf spring 5 described above.
When the lenses 6, 56, ... Are loosely fitted in the recesses 54, 54 of the slide plate 16, as shown in FIG. 3, they are arranged at a position retracted below the photographic film package 1. Further, the pressing plate 22 is, as shown in FIG. 4, when the slide plate 16 moves in the take-out direction of the photographic film package 1.
The leaf springs 56, 56 ... Are the inclined portions 5 of the recesses 54, 54.
4a, 54a ... Can be raised by riding on the film unit 2 and press the film unit 2 toward the upper lid 24.

Next, the operation of taking in and out the photographic film package 1 using the film holder 10 constructed as described above will be described below. (1) First, the photographic film package 1 is inserted from the entrance 34 of the film holder body 12 with the clip 5 as the tip. (2) When the photographic film package 1 is inserted, the photographic film package 1 is inserted without receiving resistance from the pressing plate 22 because the pressing plate 22 is retracted below the photographic film package 1 as shown in FIG. It And
The clip 5 of the film unit 2 comes into contact with the left end portion 14a of the slide lever 14 shown by the chain double-dashed line in FIG. The slide lever 14 is used for the photo film package 1
It is pushed by and slides to the position shown by the solid line.

(3) When the slide lever 14 moves in the above-mentioned direction, the right end portion 14b of the slide lever 14 retreats from the stopper plate 52 as shown in FIG. 7, so that the stopper piece 53 passes through the passage area 60 of the photographic film package 1. Project to. (4) When the photographic film package 1 is inserted into the final position, the clip 5 of the photographic film package 1 engages with the engaging claws 64, 66, 64 of the engaging plate 20 as shown in FIG. As a result, the film unit 2 is held in the film holder body 12.

(5) When taking a picture next time, only the light-shielding envelope 3 is pulled out with one hand as shown in FIG. 8, and the photographic film F of the film unit 2 is exposed at the exposure opening of the film holder body 12 as shown in FIG. The part 32 (see FIG. 1) is exposed. (6) During the operation of pulling out the light-shielding envelope 3, the stopper tape 7 adhered to the light-shielding envelope 3 contacts the stopper piece 53 as shown in FIG. 8 to prevent the light-shielding envelope 3 from coming off from the film holder body 12. To be done.

(7) When the light-shielding envelope 3 is further pulled from this state, the pulling force is transmitted to the slide plate 16 via the stopper tape 7 and the stopper piece 53, and the slide plate 16 is indicated by a chain double-dashed line. As shown, the photo film package 1 is slid in the take-out direction. (8) When the slide plate 16 moves in the above direction, the control plate 38 shown in FIG. 9 moves in the take-out direction of the photographic film package 1 in association with this movement, and the pressing blades 38c of the control plate 38 move to the engaging plate 20. By pressing the guide blades 42, 42, the engagement plate 20 is elastically deformed and the clip 5
The engaging claws 64, 66, 64 are retracted from the engaging position with. As a result, the engagement with the clip 5 is released.

When the slide plate 16 moves in the above-mentioned direction, the pressing plate 22, as shown in FIG.
56 rises by riding on the inclined portions 54a, 54a of the slide plate 16 and presses the film unit 2 shown in FIG. As a result, the film unit 2 is held in the film holder body 12 by the pressing plate 22. The photo film F is photographed in this state.

(9) When the photographing is completed, the light-shielding envelope 3 is moved with one hand in the inserting direction of the photographic film package 1. (10) When the light-shielding envelope 3 is moved in the direction, the slide plate 16 returns to its original position by the biasing force of the spring 48 shown in FIG. 2, and the pressing plate 22 returns to its original position. The engagement plate 20 is held in a state of being disengaged from the clip 5 by the control plate 38 even if the slide plate 16 returns to the original position.

(11) The film unit 2 and the light-shielding envelope 3
Then, the light-shielding envelope 3 is taken out together with the film unit 2 from the film holder body 12 with one hand. At this time,
Since the clip 5 is not engaged with the engaging claws 64, 66, 64, and the pressing plate 22 is retracted below the photo film package 1, the photo film package 1 can be taken out without any resistance. You can

(12) When the photographic film package 1 is taken out, the slide levers 14 and 14 move to the spring 4
The urging force of 8 returns to the original position. Then, the reset levers 44, 44 rotated by being pushed by the slide levers 14, 14 are rotated from the position shown in FIG. 10 to the position shown in FIG. Press to. As a result, the engagement plate 20 returns to the original position shown in FIG. Further, as shown in FIG. 5, the stopper plate 52 is pushed by the end portion 14b of the slide lever 14 to retract from the passage area 60 of the photographic film package 1 and return to the original position. This allows
The photographic film package 1 can be easily taken out from the film holder body 12.

Therefore, according to the film holder 10 of the present invention, the pressing plate 22 is raised to the passing area 60 of the photographic film package 1 in association with the movement of the light-shielding envelope 3 when it is pulled out. Since the entrance / exit 34 of the film holder main body 12 is widened by retreating from the passage area 60 at the time of loading / unloading, the photographic film package 1 can be easily taken in / out of the film holder main body 12, and the photographed film can be surely guaranteed.

[0038]

As described above, according to the film holder of the present invention, the pressing member is advanced into the passage area of the photographic film package in association with the movement of the light-shielding envelope when it is pulled out from the film holder body. Press the unit toward the exposed opening, and at other times, that is, when inserting the photo film package, when taking out the photo film package, and when inserting the light-shielding envelope, retract the pressing member from the passage area of the photo film package. As a result, the photographic film package can be easily put in and taken out from the film holder main body, and the photographed film can be surely guaranteed.

[Brief description of drawings]

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

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

FIG. 3 is a sectional view showing an embodiment of a pressing plate applied to a film holder according to the present invention.

FIG. 4 is a cross-sectional view showing an embodiment of a pressing plate applied to the film holder according to the present invention.

FIG. 5 is an operation explanatory view of the film holder according to the present invention.

FIG. 6 is an operation explanatory view of the film holder according to the present invention.

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

FIG. 8 is an operation explanatory view of the film holder according to the present invention.

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

FIG. 10 is an operation explanatory view of the film holder according to the present invention.

FIG. 11 is a plan view of a photographic film package used in the film holder according to the present invention.

FIG. 12 is a side view of FIG.

[Explanation of symbols]

 1 ... Photo film package 2 ... Film unit 3 ... Light-shielding envelope 5 ... Clip 7 ... Stopper tape 10 ... Film holder 12 ... Film holder body 14 ... Slide lever 16 ... Slide plate 18 ... Stopper 20 ... Engagement plate 22 ... Press plate 24 … Bottom lid 26… Top lid

Claims (1)

[Claims] 1. A photographic film package comprising a photographic film unit having a clip attached to the leading edge of the photographic film, and a light-shielding envelope for light-tightly storing the photographic film, which is provided with an insertion opening closed by the clip. In a film holder to be housed, a film holder main body having an entrance / exit of the photographic film package, an exposure opening for exposing the photographic film, and a photographic film package are provided in the main body of the film holder. An engaging member that engages with the clip and holds the film unit in the film holder main body when inserted into the final position in the main body, and interlocks with the movement of the light-shielding envelope of the photographic film package in the take-out direction. Advance to the pressing position of the film unit, and put the film unit in the exposed opening. A film holder comprising: a pressing member which is pressed toward the side, and which is retracted from the pressing position in conjunction with the movement of the light-shielding envelope in the insertion direction.