JPH07219035A - Film unit with lens - Google Patents

Abstract

PURPOSE:To easily take out a cartridge where exposed film is housed from a film unit with a lens without causing labor and time. CONSTITUTION:A pair of locking members 40 energized in the clockwise direction are provided rotatably near the cartridge chamber 14 of the unit main body 1-0 of the film unit, and a pawl part 43 is retreated so as to enable the cartridge P to attach and detach to/from the cartridge chamber 14 by an elastic action when photographic film F is absent, and in the case that the photographic film F exists on a carrying surface, it is forcedly rotated in the counter clockwise direction by pressing an edge part on the side of the film, and the pawl part 43 is projected to the inside of the cartridge chamber 14 and is engage with an engaging hole N formed on the outer peripheral surface of the cartridge P so as to hold the cartridge P at a loading position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens-equipped film unit which is preliminarily loaded with a film so that an image can be picked up and can be immediately photographed.

[0002]

2. Description of the Related Art There is provided a lens-equipped film unit having a built-in photographic film in advance so that a photograph can be easily enjoyed even when the camera is not carried. This lens-equipped film unit (hereinafter abbreviated as "film unit") is an unexposed photographic film that meets international standards (IS
O) It is loaded in a state where it is pulled out from the cartridge defined by 1007. This photographic film is caught in the cartridge each time it is taken. After the shooting is completed, the user may submit the entire unit body to the developing station through the development handling shop without removing the cartridge from the unit body. At the developing station, the cartridge is taken out from the unit main body, the exposed film is taken out from the cartridge, and after development processing, the developed photographic film and the printed photograph are returned to the user.

By the way, Japanese Patent Application No. 3-153883 filed by the present applicant
According to Japanese Patent Application No. 3-167738 and U.S. Pat. No. 5023642, a photographic film is wound up to the tip inside a resin-molded cartridge body, and a spool built in the cartridge body is externally driven. Therefore, a photographic film cartridge (hereinafter simply referred to as a film cartridge) in which the front end of the photographic film can be sent out has been proposed. The film cartridge with such a function is equipped with a display mechanism before and after use, a spool lock mechanism, a DX code display section, etc., and is devised to work with various mechanism sections on the camera side. ing.

A film unit in which such a film cartridge is loaded instead of the cartridge defined by International Standard (ISO) 1007 is disclosed in JP-A-3-83053. This film unit is convenient for the photo lab because the exposed photographic film can be taken out from the cartridge body by rotating the spool.

[0005]

By the way, in order to take out the cartridge from the lens-fitted film unit, the exterior box provided to protect the unit body is removed, and the cartridge which is opening the back cover at the bottom of the unit is taken out. It is indispensable, and it is a very laborious task for the photo lab. Further, the exposed film needs to be taken out from the inside of the cartridge in order to apply it to the developing processor, and this work is also a very troublesome work for the developing station.

The present invention has been made to solve the above problems, and a film unit with a lens is constituted by a photographing section and a storage section, and an exposed photographic film can be taken out from the main body of the cartridge by rotating the spool. After the use, the cartridge is easily taken out of the unit to simplify the work at the developing station.

[0007]

SUMMARY OF THE INVENTION The above object is to provide a lens-equipped film unit in which a photographic film can be wound and fed out by rotating a spool, wherein the cartridge is locked to the unit body when the photographic film is wound. The film unit with a lens (first invention), wherein the locking is released when the winding is completed.

Further, in a film unit with a lens in which a cartridge which allows the photographic film to be rolled in and fed out by rotating the spool is housed in a cartridge housing which is separable from the unit body, the cartridge is a photograph of the cartridge. This is achieved by a film unit with a lens (second invention), which is locked to the unit main body when the film is rolled up, and is unlocked when writing is completed.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Prior to the description of the embodiments, a common structure of the film unit will be described with reference to FIGS.

A film chamber 1 for accommodating an unexposed film wound with a photographing lens 11 with a film unit, a screen frame 12
3, a cartridge chamber 14 for accommodating the exposed film, a unit main body 10 having a film winding mechanism composed of a film winding knob 15, a sprocket gear 16, etc., and a spool S in the cartridge P. And an unexposed photographic film F having a width of 35 mm which engages with the unit main body 10 and a rear cover 20 which engages with the unit body 10 to keep the photographic film F in a light-shielded state and regulates the exposure position.

The back cover 20 has a pair of claws 21.
The engaging hole 22 and the pair of engaging holes 17 and claws 18 corresponding to each of the unit main body 10 are engaged and integrated, and the contacting portion between the main body and the protrusion 23 is formed by a hinge.
By placing it in a paper-made outer box 30, the protrusion 23 on the bottom surface is bent at the angle indicated by the alternate long and short dash line so that the cartridge chamber 14
The vertical position of the inside cartridge P is regulated. The projection 23 does not have to cover the entire cartridge storage portion, but may cover a sufficient amount to shield light. In this case, the protrusion becomes easier to open due to the weight of the cartridge, and the cartridge becomes easier to remove.

The unit main body 10 is provided with a lock member 40 as shown in FIG. 2 rotatably on a pair of shaft portions 10A below the film conveying surface near the cartridge chamber 14, and is pressed clockwise by an elastic piece 41. It is urged by a very weak force to project the top portion 42 at the upper end thereof from the film transport surface, and the claw portion 43 at the lower end faces the inner wall surface of the cartridge chamber 14.

When the photographic film F is loaded in the unit main body 10, the locking member 40 is easily rotated counterclockwise by pressing the top 42 by the side edge of the film as shown in FIG. 2 (b). The claw portion 43 is projected inside the cartridge chamber 14.

(Embodiment 1) An embodiment of the first invention of the present invention will be described with reference to FIGS.

The cartridge P has the lock member 40.
A pair of engagement holes N are provided on the outer peripheral surface facing the claw portion 43 of the cartridge, the cartridge P is loaded in the cartridge chamber 14, the photographic film F is set in the screen frame 12, and the back cover 20 is attached. The claw portions 43 of the lock member 40 are engaged with the engagement holes N, respectively.

Due to the engagement of the lock member 40, the movement of the cartridge P in the axial direction is restricted so that the position of the photographic film F is restricted to the center of the screen frame 12, and the cartridge P itself rotates as the photographic film F is rolled up. Is prevented from moving.

The patrone P is rolled up to the rear end of the photographic film F at the developing station as shown in FIG. 3 when the user finishes photographing, so that the locking member 40 is released by pressing the film. It rotates back in the clockwise direction, and the engagement with the cartridge P is released.

As a result, the Patrone P has the above-mentioned exterior box 30.
The bottom cover 31 on the bottom surface is released by removing the engaging relationship such as perforations and the like, so that the protruding portion 23 of the rear cover 20 can be removed by its own weight.
Press to open and easily remove from the film unit in the bright room.

The cartridge P taken out from the film unit is developed by sending the exposed photographic film F into the dark box by rotating the spool S in the reverse direction.

(Embodiment 2) Next, an embodiment of the second invention of the present invention will be described with reference to FIG.

As shown in FIG. 4 (b), the unit main body 10 is provided with a cartridge chamber 14A in which the upper portion of the main body, that is, the film winding portion is also opened, and the claw portion of the lock member 40 is provided on the inner wall surface thereof.
With the 43 facing the patrone P, the patrone storage unit 50
It is designed to be loaded after being stored in.

The cartridge storage unit 50 is provided with a film winding knob 15 and gears (neither shown) for transmitting the rotation of the film winding knob 15 to the shutter mechanism at the upper portion, and the shaft of the cartridge P to be accommodated at the lower portion. Engaging portion 51 that regulates the position in the direction
Is formed.

The cartridge storage body 50 is the lock member.
A pair of engagement holes N are provided on the side surface facing 40, the cartridge storage body 50 is loaded in the cartridge chamber 14A, the photographic film F is set in the image frame 12, and the rear cover 20 is attached. The claw portions 43 of the member 40 are engaged with the engaging holes N, respectively.

The above-mentioned cartridge storage body 50 is a cartridge P.
When the photographic film F is completely wound into the lock member
It is taken out of the film unit by its own weight by removing the bottom cover 31 of the outer box 30 after the engagement by 40 is released, but since the film winding knob 15 is integrated, the exposed photographic film is rotated by the reverse rotation. Immediately ready for delivery.

[0025]

As described above, according to the present invention, it is possible to take out the cartridge from which the exposed photographic film is stored from the film unit very easily, and it is possible to send out the film even in the state of the cartridge alone. It has become possible to provide a film unit with a lens that can greatly improve the efficiency of processing work in a developing station.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a film unit with a lens of the present invention.

FIG. 2 is a sectional view of an essential part of the film unit.

FIG. 3 is an explanatory view of a patrone used in the first invention.

FIG. 4 is an explanatory view of a cartridge storage body used in the second invention.

[Explanation of symbols]

 10 Unit main body 14, 14A Patrone chamber 20 Rear cover 23 Projection 30 Exterior box 31 Bottom lid 40 Lock member 43 Claw 50 Patrone container 51 Engagement part P Patrone S Spool F Photo film N Engagement hole

Claims (4)

[Claims] 1. A lens-equipped film unit equipped with a patrone capable of winding and feeding a photographic film by rotating a spool, wherein the patrone is locked to the unit main body when the photographic film is wound, and the locking is carried out when the winding is completed. A film unit with a lens that is released. 2. The lens-equipped film unit according to claim 1, wherein the patrone can be taken out from the bottom of the unit body by its own weight when the locking is released. 3. A lens-equipped film unit in which a cartridge which allows winding and feeding of a photographic film by rotating a spool is housed in a cartridge holder that is separable from the unit body, and the cartridge is a photograph of the cartridge. A film unit with a lens, wherein the film is attached to a unit body when the film is wound, and the engagement is released when the film is wound. 4. The lens-equipped film unit according to claim 3, wherein the cartridge storage unit can be taken out from the bottom of the unit body by its own weight when the locking is released.