JP2862116B2 - 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 mounted on the back of a camera and in which a photographic film package is 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.

[0003] The photographic film package is inserted into a film holder mounted on the back of a camera, with the clip at the head. 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 presses and holds the photo film package inserted into the film holder body toward the exposure opening, and always presses the photo film package toward the exposure opening unless the release lever is set at the release position. It is being rushed.

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, since the pressing plate is always urged toward the exposed opening of the film holder main body, the entrance of the photographic film package is narrowed, and the pressing urge is reduced. This has the drawback that it is difficult to store the photo film package in the main body of the film holder. There is a risk of sticking.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and has as its object to provide a film holder which can easily take a photographic film package into and out of a film holder main body and guarantee a photographed film.

[0008]

According to the present invention, there is provided a photographic film comprising: a film unit having a clip attached to a leading edge of the photographic film; and an insertion port closed by the clip. And a light-shielding envelope for storing the photo film package in a light-tight manner, and a film holder body in which an entrance and exit of the photo film package and an exposure opening for exposing the photo film are formed. An engagement member provided in the film holder main body, the engagement member engaging with the clip to hold 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; The photographic film package is moved to the pressing position of the film unit in conjunction with the movement of the light-shielding envelope in the removing direction. And a pressing member for pressing the film unit toward the exposure opening, the pressing member being retracted from the pressing position in conjunction with the movement of the light-shielding envelope in the insertion direction. .

[0009]

The operation of taking and taking out a photographic 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. At this time, since the pressing member is at a position retracted from the passing area of the photo film package, the photo film package can be easily inserted into the film holder main 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 main body. (3) When taking a picture next time, when only the light-shielding envelope is pulled out, the photographic film of the film unit is exposed to the exposure opening of the film holder main body because the 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 exposure opening. Thus, the film unit is held in the film holder main body by the pressing member. Then, the photographic film is photographed in this state.

(5) When the photographing is completed, the light-shielding envelope is moved again in the insertion direction. (6) When the light-shielding envelope is moved in the insertion direction, the pressing member retracts from the pressed position of the film unit and returns to the original position in conjunction with the movement. (7) When the film unit is completely stored in the light-shielding envelope, the photographic film package is removed from the film holder body. At this time, since the pressing member has returned to the original position, the photo 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 advanced to the passage area of the photo film package only when the light-shielding envelope is pulled out from the film holder main body. Since the entrance is wider than that of the conventional film holder, the photographic film package can be easily taken in and out of the film holder main body, and the photographed film can be guaranteed.

[0014]

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. 11, a photographic film package 1 includes 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. 11, a trapezoidal second carrier sheet 6 is detachably attached 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 in the direction of an arrow in FIG. 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 band-shaped stopper tape 7 is adhered in the transverse direction of the light-shielding envelope 3 near the front end 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 includes a film holder main body 12, slide levers 14, 14, a slide plate 16, a stopper 18, an engagement plate 20, a pressing plate 22, and the like.

First, the film holder body 12 will be described. The film holder body 12 is, as shown in FIG.
Each of the engagement pieces 30, 30,... Formed on the outer periphery of the upper cover 26 in engagement grooves 28, 28,. Are formed into a box by engaging the A rectangular exposure opening 32 is formed on the front surface of the film holder main body 12, that is, on the surface of the upper lid 26. This exposed opening 32 is
2 is an exposure opening of the photographic film F shown in FIG.

At the right edge in FIG. 1 of the film holder main body 12, the entrance 3 of the above-mentioned photographic film package 1 is provided.
4 are formed, and the photo film package 1 is put in and taken out of the entrance 34 in the direction of the arrow in the figure. The entrance 3
4 is formed to have a thickness T and a width B of the photo film package 1 shown in FIGS. A groove 36 is formed at the center of the left end of the bottom cover 24 in FIG.
The groove 36 is formed along the direction in which the photo film package 1 is taken in and out. A control plate 38 is provided in the groove 36.

A long hole 38a is formed in the control plate 38 along the direction in which the photo film package 1 is inserted and taken out. The long 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 slidably provided along the direction in which the photo film package 1 is put in and taken out. Also, the control plate 3
8 is formed on the edge 16b of a groove 16a formed on the left end of the slide plate 16 described later.
To be fixed. Further, a pair of pressing blades 38c, 38c are formed integrally with the control plate 38 by bending. The pressing blades 38c, 38c are bent at a predetermined angle with respect to the control plate 38, and are pressed and contacted with forked guide blades 42, 42 fixed to the engagement plate 20 described later. On both sides of the left end of the control plate 38, stopper pieces 38d,
38d is integrally formed by bending. This stopper piece 3
8d and 38d are pressed and contacted with stopper pieces 46 and 46 fixed to the slide lever 14 described later via reset levers 44 and 44 rotatably attached to the bottom cover 24.

Next, the slide lever 14 will be described. The slide levers 14 are arranged on both sides of the bottom cover 24 with respect to the direction in which the photo 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 the slide plate 16 described later. Thus, the slide lever 14 is urged by the spring 48 in the direction in which the photo film package 1 is taken out, and the slide plate 16 is urged by the spring 48 in the direction in which the photo film package 1 is inserted.

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

As shown in FIG. 2, the slide plate 16 is slidably disposed on the bottom cover 24 along the direction in which the photo film package 1 is taken in and out, and the spring 48 is used to insert the photo film package 1 as described above. Biased in the direction. In addition, three concave portions 5 are provided on both sides of the slide plate 16 in the direction in which the photo film package 1 is inserted and removed.
4, 54... Are formed. These recesses 54, 54
Are formed at positions corresponding to leaf springs 56 fixed to the lower portion of the pressing plate 22 shown in FIG. In addition, as shown in FIG. 2, an inclined portion 54a is formed in the concave portion 54.

Next, the stopper 18 will be described.
The stopper 18 is, as shown in FIG.
8b, the lower end of the side plate 18b is fixed to the right edge 16c of the slide plate 16, and the photographic film package 1 is placed 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 above-described stopper plate 52 is disposed 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 leaf spring 58 formed integrally with the stopper plate 52.

Thus, when the end portion 14b of the slide lever 14 is in contact with the stopper plate 52, the stopper piece 53 is retracted from the passing area 60 of the photographic film package 1, and the end portion 14b Figure 7
When the photo film package 1 is moved in the insertion direction, as shown in FIG.

Next, the engagement plate 20 will be described. The engagement plate 20 is formed of an elastic member, and has a pair of claws 62 having openings 20 a shown in FIG.
It is locked and fixed to 62. At the left end of the engagement plate 20, engagement claws 64, 66, 64 are integrally bent. These engaging claws 64, 66, 64 are engaged with the clip 5 of the photo 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 plate springs 56, 56,... And the stopper 72 are fixed to the lower surface of the iron plate 70,
The stopper plate 72 is fitted into a boss 74 formed on the surface of the bottom cover 24 so that the pressing plate 22
Fixed to At this time, the lower ends of the leaf springs 56 are fitted in the recesses 54 of the slide plate 16 described above.

Thus, the pressing plate 22 is connected to the leaf spring 5
When the slides 6, 56,... Are loosely fitted into the recesses 54, 54,... Of the slide plate 16, they are disposed at positions retreated below the photo film package 1, as shown in FIG. When the slide plate 16 is moved in the direction in which the photo film package 1 is taken out, as shown in FIG.
The leaf springs 56, 56 ... are inclined portions 5 of the recesses 54, 54 ...
4a, 54a,..., And the film unit 2 can be pressed 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. (1) First, the photographic film package 1 is inserted from the entrance 34 of the film holder body 12 with the clip 5 as a tip. (2) When the photo film package 1 is inserted, the photo film package 1 is inserted without receiving the resistance of the pressing plate 22 because the pressing plate 22 is retracted below the photo film package 1 as shown in FIG. You. And
The clip 5 of the film unit 2 comes into contact with the left end 14a of the slide lever 14 indicated by a two-dot chain line in FIG. Then, the slide lever 14 is mounted on the photo film package 1.
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 14b of the slide lever 14 retreats from the stopper plate 52 as shown in FIG. 7, so that the stopper piece 53 becomes the passing area 60 of the photographic film package 1. Protrude into. (4) When the photo film package 1 is inserted into the final position, the clip 5 of the photo film package 1 is engaged with the engagement claws 64, 66, 64 of the engagement plate 20, as shown in FIG. Thus, the film unit 2 is held in the film holder body 12.

(5) At the time of photographing, 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 as shown in FIG. The portion 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 comes into contact with the stopper piece 53 as shown in FIG. 8, and the light-shielding envelope 3 is prevented from coming off from the film holder body 12. Is 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 moved by a two-dot chain line. As shown in the drawing, the photographic 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 conjunction with this movement, and the pressing blade 38 c of the control plate 38 By pressing the guide blades 42, 42, the engagement plate 20 is elastically deformed to
The engaging claws 64, 66, 64 are retracted from the engaging position with. Thereby, the engagement with the clip 5 is released.

When the slide plate 16 moves in the above-mentioned direction, the pressing plate 22 is moved to the leaf spring 56, as shown in FIG.
Are raised by riding on the inclined portions 54a of the slide plate 16, and press the film unit 2 shown in FIG. Thus, the film unit 2 is held in the film holder body 12 by the pressing plate 22. Then, the photo film F is photographed in this state.

(9) Next, 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 above direction, the slide plate 16 returns to the original position by the urging force of the spring 48 shown in FIG. 2, and the pressing plate 22 returns to the original position. The engagement plate 20 is maintained in a state where the engagement with the clip 5 is released by the control plate 38 even when the slide plate 16 returns to the original position.

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

(12) When the photographic film package 1 is taken out, the slide levers 14,
8 returns to the original position. Then, the reset levers 44, 44, which are rotated by being pushed by the slide levers 14, 14, rotate from the position shown in FIG. 10 to the position shown in FIG. Press Thereby, 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 and retracts from the passing area 60 of the photo film package 1 to return to the original position. This allows
The photo film package 1 can be easily taken out of the film holder main 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 photo film package 1 in conjunction with the movement when the light-shielding envelope 3 is pulled out. When the film is taken in and out, the entrance / exit 34 of the film holder main body 12 is widened by retreating from the passing area 60, so that the photographic film package 1 can be easily taken in and out of the film holder main body 12, and the photographed film can be reliably assured.

[0038]

As described above, according to the film holder of the present invention, the pressing member is advanced to the passing area of the photographic film package in conjunction with the movement when the light-shielding envelope is pulled out from the film holder main body. The unit is pressed toward the exposure 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, the pressing member is retracted from the passing area of the photo film package. As a result, the photographic film package can be easily taken in and out of the film holder main body, and the photographed film can be reliably guaranteed.

[Brief description of the 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 the film holder according to the present invention.

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

FIG. 4 is a 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 explanatory view of the operation 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 explanatory view of the operation of the film holder according to the present invention.

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

FIG. 12 is a side view of FIG. 11;

[Explanation of symbols]

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

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G03B 17/26 G03B 17/32 G03B 17/34

Claims (1)

(57) [Claims] 1. A photographic film package comprising: a photographic film unit having a clip attached to a leading edge portion of the photographic film; and a light-shielding envelope having an insertion opening closed by the clip and containing the photographic film in a light-tight manner. In the film holder to be accommodated, a film holder main body in which an entrance and exit of the photo film package and an exposure opening for exposing the photo film are formed; and a photo film package provided in the film holder main body, wherein the photo film package is provided. An engaging member that engages with the clip when inserted into the final position in the main body and holds the film unit in the film holder main body; and interlocks with the movement of the light-shielding envelope of the photo film package in the removal direction. Advances to the pressing position of the film unit, and places the film unit in the exposure opening. And a pressing member which is retracted from the pressing position in conjunction with movement of the light-shielding envelope in the insertion direction.