JP2001215663A - Film unit with waterproof lens - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a film unit with a waterproof lens which makes it hard to cause a hand shake in photography and improves the holding certainty of a grip part. SOLUTION: The shape of the grip part 17 of a waterproof case 1 is made large, through holes 3a and 3b are formed in a case body 2a and a lid 2b constituting the waterproof case 1 outside the watertight structure of the waterproof case 1 and inside the external shape of the grip part 17 and aligned successively when the lid 2b is fixed to the case 2a so that a portable strap is inserted to the hole. No projection is formed outside the external shape of the grip part 17 to improve the holding certainty when the grip part 17 is gripped for photography.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof case in which a film unit with a lens is housed in a waterproof case in which a case main body and a lid are connected via a fitting portion so that a photographing operation can be performed from outside the waterproof case. The present invention relates to a film unit with a mold lens.

[0002]

2. Description of the Related Art As is well known, a film unit with a lens, which is loaded with photographic film in advance at the time of manufacture, can be photographed immediately after purchase, and after photographing is completed, the photographic film is not taken out. It is widely used because of its simplicity that it can be sent to a developing laboratory in a state and its low cost. As a kind of film unit with such a lens, so that you can take photos even on the waterside or underwater,
2. Description of the Related Art A waterproof type lens-equipped film unit in which a film unit with a lens is housed in a waterproof case having a watertight structure so that a photographing operation can be performed from the outside has been commercialized.

The waterproof case comprises a case body and a lid each made of a plastic molded product. After the film unit with the lens is housed inside, the case body and the lid are tightly integrated by fitting or the like. The waterproof case cannot be opened. A grip portion provided with a winding knob for a photographic film and a release button for a shutter is provided with a portable strap mounting portion having a through hole for inserting a portable strap used when carrying the waterproof case. Is provided. The portable strap is used by inserting the portable strap into the through hole at the time of manufacture or when the user uses the portable strap.

[0004]

However, there is no holding feeling when the grip portion is gripped, and the strap attachment portion is formed to protrude from the outer shape of the grip portion, resulting in an unnatural grip. The operability such as blurring was deteriorated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has as its object to provide a film unit with a waterproof lens having improved gripping ability of a grip portion during photographing.

[0006]

In order to achieve the above object, a film unit with a waterproof lens according to the present invention is provided with a grip portion in which an external shape as viewed from the front is smoothly bulged, and the inside of the grip portion is formed. And a notch for drainage is formed so as to reach the outside from the recess.

Further, one end communicates with a lightening recess provided in the grip portion, and a strap insertion hole is formed so as to penetrate both the case body and the lid.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the appearance and disassembled state of a film unit with a waterproof lens according to the present invention.
And FIG. The waterproof case 1 includes a case main body 2a and a lid 2b each formed of a plastic molded product. After the film unit with lens 10 is housed inside the case body 2a, the release lever 6 and the winding knob 8 are assembled into the openings 21 and 22 provided in the case body 2a, so that the respective engaging portions of the case body 2a It engages with a required part of the film unit with lens 10 inside. Note that an O-ring or the like is fitted into the openings 21 and 22 so that watertightness is maintained. A transparent photographing window 5 and a finder window 4 are provided on the front of the case body 2a.
Are provided, and each of the film units 10 with a lens is provided.
Is located in front of the taking lens and the finder objective lens. Further, a window 7 for viewing the number-of-shots display window of the film unit 10 with a lens is provided on the upper surface of the case body 2a. The side of the waterproof case 1 on which the release lever 6, the winding knob 8 and the like are provided is a grip 17 for holding the waterproof lens-equipped film unit main body during photographing.

After housing the film unit with lens 10 in the case body 2a, the lid 2b is fixed together with the rubber packing 13 to the back of the case body 2a. The lid 2b has six locking pieces 1 for fixing to the back of the case body 2a.
4 are formed. These locking pieces 14 enter the inside of the case main body 2a. Locking claws 15 are integrally formed on the inner wall of the case main body 2a at positions corresponding to the locking pieces 14, and locking holes 14a formed in each of the locking pieces 14 when the locking pieces 14 are inserted. Mates with

As shown in the sectional view of FIG. 3, the rubber packing 13 is accommodated in a groove provided on the back surface of the case main body 2a, and the lid 2b is fitted by the engagement between the locking claw 15 and the locking hole 14a. When fixed to the case body 2a, it is compressed between the lid 2b and the case body 2a. This allows the case body 2
Water does not enter the waterproof case from the gap between the cover a and the lid 2b. Further, since the engagement between the locking claw 15 and the locking hole 14a cannot be released from the outside of the case by an ordinary method, the waterproofness is reliably maintained during use of the waterproof lens unit. Will be able to

[0011] The case body 2a and the lid 2b are provided outside the watertight structure of the waterproof case 1 and at the grip portion 1 respectively.
Holes 3a and 3b penetrating inside the outer shape of No. 7 are formed. As shown in FIG. 3, when the lid 2b is fixed to the case main body 2a, these holes 3a, 3b are arranged in series. These holes 3a and 3b are through holes for inserting and attaching the portable strap 20.

Since the outer shape of the grip portion 17 is enlarged, a lightening portion 16 is formed in the grip portion 17 as shown in the sectional view of FIG. Since the lightening portion 16 is located outside the watertight structure of the waterproof case 1, water easily accumulates. Therefore, the notches 9a and 9b for improving drainage are communicated with the portable strap insertion holes 3a and 3b, and the grip portion is provided. It is provided on 17 side surfaces. (See Fig. 1)

When using the film unit with a waterproof lens, the film is fed by first turning the winding knob 8. When the film is wound up by one frame, the winding stop mechanism provided in the lens-equipped film unit 10 operates to stop the winding, and the rotation of the winding knob 8 is prevented. Since the shutter is charged during the winding of one frame of the film, the framing is performed by gripping the grip portion 17, and the release lever 6 is operated to perform photographing. At this time, since the grip portion 17 is large and there are no unnecessary convex portions, the waterproof case 1 can be firmly held, so that the occurrence of camera shake or the like hardly occurs.

Further, when photographing is performed at the waterside or underwater and water enters the lightening portion 16 inside the grip portion 17, the water tends to flow out along the cutouts 9a and 9b, so that the water accumulates in the lightening portion 16. It is drained without.

When the photographing is performed, the operation of the winding stop mechanism is released. In the same manner as described above, the user can rotate the winding knob 8 and operate the release lever 6 to sequentially take pictures. A film cartridge is stored in the film unit with lens 10 immediately below the winding knob 8, and each time the film is wound, the film that has been photographed is wound into the film cartridge.

The used film unit with the waterproof lens, in which all the photographed photographic films have been wound into the film cartridge and have been used, is collected as it is in the developing laboratory. At the developing station, first, the operation of taking out the film unit with lens 10 from the waterproof case 1 is performed. In the present invention, as shown in FIG. 4, the screwdriver 21 is inserted into the notch 9a or 9b provided for improving drainage, and the case body 2a is twisted or pryed.
And the cover 2b can be forcibly separated, and the removal tool can be pierced deeply without providing a wall or the like while maintaining the external shape.

[0017]

As described above, according to the film unit with the waterproof lens of the present invention, the outer shape of the grip portion is increased, and the through hole for inserting the portable strap is provided in the grip portion to form the outer shape. Since the projection is prevented from protruding, it is possible to provide a film unit with a waterproof lens which has a hold feeling and is less likely to cause camera shake during photographing. In addition, since the cutout for drainage is provided in the cutout in the grip, water does not collect, and users who do not know the structure of the waterproof case can see the water collected in the cutout and see the water in the waterproof case. Can be prevented from being misunderstood as having entered.

[Brief description of the drawings]

FIG. 1 is a perspective view of a film unit with a waterproof lens embodying the present invention.

FIG. 2 is an exploded perspective view of the film unit with a waterproof lens shown in FIG.

FIG. 3 is an end view of a grip portion.

FIG. 4 is a cross-sectional view of a portion below a grip portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Waterproof case 2a Case main body 2b Cover 3a Strap insertion hole 3b Strap insertion hole 9a Notch 9b Notch 10 Film unit with lens 13 Packing 14 Locking piece 15 Locking claw 16 Lightening portion 17 Grip portion 20 Portable strap 21 Driver

Claims (2)

[Claims] 1. A lens-fitted film unit pre-loaded with a photographic film, and a waterproof case including a separate case body and a lid. The case body and the lid are mutually connected via a fitting portion. The film unit with the lens housed inside the waterproof case is kept watertight by being connected, and the film unit with the lens that allows shooting operation of the film unit with the lens from the outside of the waterproof case. A grip portion is formed integrally with at least one of the side surfaces of the outer shape of the fitting portion so as to surround the outside of the fitting portion so as to smoothly swell, and a concave portion for lightening is provided in the grip portion. And a cut-out for drainage is formed so as to reach the outside from the recess. You can film unit. 2. The waterproof lens-equipped film unit according to claim 1, wherein one end of the film unit communicates with the recess, and a strap insertion hole is formed so as to penetrate both the case body and the lid. .