JPH06148733A - A release device for waterproof case - Google Patents

Abstract

PURPOSE:To improve operating function and holding function of the waterproof case and to prevent a finger from interfeving. CONSTITUTION:The device is constituted from a release operation plate 27, which is a size where a few fingers can be on it when the waterproof case is grasped, attached on the surface of a case main body 15 to be freely slid, a release lever 28 which is moved in an interlocked motion with the release plate 27 and a connection lever 29 connecting the release operation plate 27 and the release lever 28. Thus, there is no sense of incongruity and an accurate release operation can be carried out even when the gloves are left on and the fingers are not caught in front of the lens.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a release device which is operated from the outside of a waterproof case to release a shutter of a photographing unit in the waterproof case.

[0002]

2. Description of the Related Art A film unit with a lens (product name "Sharansu Hi" or the like) is provided by the applicant of the present invention so that a photograph can be easily taken without carrying a camera. The film unit with a lens is a film unit that contains a simple shooting mechanism, which contains the film in advance, and is covered with a paper box for the exterior.After shooting, a part of the paper box is broken at the photo lab. Further, a part of the photographing unit is broken or disassembled to take out the photographed film.

Among the above-mentioned lens-fitted photo film units, the photographing unit main body is housed in a transparent plastic waterproof case, and the storage opening is closed by a bottom lid. The name “I'm a picture taken, waterproof”, etc.) is also provided by the applicant. This waterproof film unit with lens keeps the watertightness between the bottom lid and the waterproof case body by the frame and the waterproof sheet made of foaming resin, and it is not only waterproof for daily life, but also photographed in water at a depth of 2-3 m. Therefore, it is often used for leisure such as skiing, swimming and scuba diving, and protects the lens-fitted film unit from snow and water.

The waterproof type lens-fitted film unit is provided with a release operating member and a film winding dial on the outside of the waterproof case, which are slightly larger in size and improve operability. When the release operation member is operated, the tongue-shaped release lever in the case body is moved to press the shutter button of the lens-fitted film unit. The release operation member and the release lever are attached by waterproofing through an O-ring or the like through the waterproof case body. The waterproof case body is thinner than conventional products, making it more portable and easier to hold.

[0005]

However, there are many occasions when the lens-fitted film unit housed in the waterproof case is used, such as when skiing or scuba diving. In these cases,
Not only is the fingertip slightly larger than it is in normal times, but it is also less sensitive. For this reason, it is difficult to operate with a small release operating member provided in the conventional waterproof case, and the part of the photographing window may be covered with another finger when the release operation is performed. As a result, it became easier to create camera shake pictures and pictures in which part of the shooting screen was hidden.

The present invention has been made in consideration of the above-mentioned problems of the prior art, and provides a release device for a waterproof case in which the operability and the holding property of the waterproof case are improved and the finger is not easily caught. The purpose is to do.

[0007]

In order to achieve the above object, the operation of a release operation plate used as a release operation member is attached so as to slide along the surface of a waterproof case from a rotational operation, and a waterproof operation is performed at the time of photographing. It has a size that allows multiple fingers to be placed when the case is gripped, and the release operation member and the release lever, which were directly connected to each other in the past, were connected to each other by sliding the operation method of the release operation member. A connecting lever for interlocking the member and the release lever is provided in the gap between the waterproof case body and the release operating member.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded view of the waterproof lens-fitted film unit of the present invention. The lens-fitted film unit 1 includes a unit main body 2 having a built-in film and a shutter mechanism, and a paper box 3 covering the unit main body 2. Consists of. In order to expose the taking lens 4, the viewfinder objective window 5, the counter display window 6, the shutter button 7 and the like provided in the unit main body 2, a required portion of the paper box is perforated.

The lens-fitted film unit 1 is made on the premise that it is used by being enclosed in a waterproof case having a structure to be described later, and at the center of the film winding dial 8 incorporated in the unit main body 2. A hole is provided and knurled teeth 9 are formed on the inner circumference thereof. The knurled teeth 9 are exposed to the outside through holes formed in the unit body 2 and the paper box 3. Further, on the upper surface of the lens-fitted photo film unit 1, holes 10 and 11 which are located substantially on a diagonal line and penetrate the paper box 3 and the unit main body 2 are formed.

The lens-fitted film unit 1 is inserted into a case body 15 made of transparent plastic through an opening 16 formed in the bottom surface thereof. A bottom cover 20 is watertightly fitted in the opening 16, and the lens-fitted film unit 1 is enclosed in a waterproof case 15. After the frame body 21 is fitted in the opening 16, a waterproof sheet 22 is adhered by heat sealing, and a spacer sheet made of foaming resin is laid on the inner surface of the bottom lid 20. The elasticity of the spacer sheet pushes the lens-fitted photo film unit 1 upwards when it is fitted to, and also acts as a cushioning material when an external force is applied to the bottom surface.
The mechanical strength of the film unit with waterproof lens is enhanced.

The case body 15 has a portion where the photographing lens 4 faces when the lens-fitted film unit 1 is housed made thinner than the other portions, and the outer surface and the inner surface are formed into parallel planes to transmit light. In addition, the photographic quality is improved. On the upper surface of the case main body 15, a portion facing the counter display window 6 of the lens-fitted film unit 1 is formed as a lens 18 to enlarge the display of the number of shots for easy confirmation.

An operation dial 23 formed of opaque plastic is attached to the case body 15.
The operation dial 23 is rotatably inserted into a boss provided on the upper surface of the case body 15, and an O-ring 24 is fitted to a rotating shaft protruding from the lower surface of the operation dial 23 so that the operation dial 23 can be inserted into the case body 15 even when operated in water. Water is prevented from entering and a torque limiter 25 is further connected to the rotary shaft. Knurled teeth are formed on the outer circumference of the drive shaft 26 provided in the torque limiter 25, and mesh with the knurled teeth 9 provided on the inner circumference of the center hole of the winding dial 8 of the lens-fitted film unit 1. Torque limiter 2
Reference numeral 5 transmits the rotation of the operation dial 23 to the drive shaft 26, but makes the operation dial 23 idle when a load more than a specified value is applied. Therefore, after the film is wound up by one frame and the winding mechanism of the lens-fitted film unit 1 is activated, the film is rotated idly even if the operation dial 23 is operated.

A check claw 17 is further attached to the case body 15. The check claw 17 meshes with the clutch teeth formed on the inner surface of the operation dial 23 and can be rotated counterclockwise, but the clockwise rotation is prohibited. On the inner wall of the upper surface of the case main body 15, two pins 15a and 15b having tapered tips are projected. These pins 15 a and 15 b are provided with holes 1 when the lens-fitted film unit 1 is inserted into the case body 15 through the opening 16.
0, 11 is entered to perform the insertion guide and the positioning after the insertion of the lens-fitted film unit 1.

A release operation plate 27 made of colored plastic is mounted on the right side of the front surface of the case body 15 so as to be vertically movable. This release operation plate 27
Has a large plate shape so that it can be easily grasped and operated during photographing, and when the case body 15 is grasped, a plurality of fingers of the right hand can be placed at the same time. Also, as shown in FIG. 2, a stepped portion 40 is formed on the surface thereof so that it can be hooked by the index finger of the right hand.

In FIG. 2 showing the mounting structure of the release operation plate 27, vertically extending guide grooves 27a and 27b are formed on the back surface of the release operation plate 27, and a pair of guide pins projecting from the front surface of the case body 15 are provided. 36 and 38 are engaged with these guide grooves 27a and 27b. Case body 1
On the front surface of 5, a release operation plate 27 and a spring 34 are further provided.
A boss 39 for mounting the boss and a boss 35 surrounding the through hole 41 are formed. The boss 39 is inserted into an elongated hole 27c formed substantially in the center of the release operation plate 27,
The release operation plate 27 is prevented from coming off by a screw 30. The name plate 31 is made of a sheet of the same color as the release operation plate 27 and closes the elongated hole 27c.

One end of the through hole 41 is provided with a release lever 2
The release shaft 28a to which 8 is fixed is inserted. The other end of the release shaft 28a is O fitted in the boss 35.
It penetrates through the ring 33 and projects from the front surface of the case main body 15, and the tip of the connecting lever 29 has a key hole 29a.
It is fixed by a screw 32 via. Therefore,
When the connecting lever 29 rotates about the release shaft 28a, the release lever 28 rotates integrally with the release shaft 28a. Further, the connecting lever 29 is biased clockwise by a spring 34, and a projecting piece 29b formed on the other end side abuts a pin 27d projecting on the back surface of the release operation plate 27 from below.

The operation of the above configuration will be described. FIG. 3 is a view showing a state of the right hand holding the waterproof lens-fitted film unit. When operating the waterproof lens-fitted film unit, the index finger 42 is placed on the step portion 40 formed on the upper portion of the release operation plate 27, the back side of the case body 15 is supported by the thumb, and the middle finger 43 of the release operation plate 27 is supported. Hold the waterproof lens-fitted film unit in line with the vertical recess in the center. The left hand holding the waterproof lens-fitted film unit is not shown.

When the release operation plate 27 is pushed down, the release operation plate 27 slides right below by the guiding action of the guide pins 36 and 38. This makes pin 27
d pushes down the protrusion 29b, and the connecting lever 29 moves the spring 34.
It rotates counterclockwise against the bias of. Connection lever 29
The release shaft 28a rotates in the same direction as the counterclockwise rotation, and the release lever 28 rotates in the counterclockwise direction. As a result, the tip of the release lever 28 pushes down the shutter button 7 of the lens-fitted film unit 1.

When the shutter button 7 is pushed down, the shutter mechanism incorporated in the lens-fitted photo film unit 1 is actuated, and one photographing is performed. After the shooting, when the release operation plate 27 is released from being pushed down, the connecting lever 29 is rotated clockwise by the urging force of the spring 34. As a result, the projecting piece 29b slides the release operating plate 27 upward via the pin 27d, and the release operating plate 27 returns to the original position before the release operation. In this way, when the operation dial 23 is rotated after one release operation, the film is wound in the lens-fitted film unit 1 and the shutter is charged for the next shooting.

As described above, the release operation plate 27 slidably attached to the front surface of the case body 15 is made large and plate-like, and is provided at a position where a plurality of fingers of the right hand are naturally covered when gripped. Therefore, it is much easier to operate than the release operation member that can be operated only with one index finger as in the past, and can be easily operated even with the gloves on. Moreover, since the gripped right hand finger is almost placed on the release operation plate 27, it is possible to eliminate the disadvantage that the fingertip carelessly covers the front surface of the taking lens.

Although the above description has been made according to the illustrated example, in carrying out the present invention, the shape of the release operation plate can be changed as appropriate, and the operation direction during the release operation is not limited to the downward direction. For example, the shutter release may be performed when sliding in the lateral direction.

[0022]

As described above, according to the present invention,
The shutter release plate is configured so that multiple gripped fingers can be placed at the same time, and the shutter release is performed by sliding the release plate, so a reliable release operation that does not feel uncomfortable even with gloves on In addition, it is possible to eliminate the inconvenience of inadvertently covering the front surface of the taking lens with the fingertips during the release operation.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a waterproof lens-fitted film unit embodying the present invention.

FIG. 2 is an exploded perspective view of a release mechanism of a waterproof case.

FIG. 3 is a front view showing a method of gripping the waterproof lens-equipped film unit of FIG. 1 during operation.

[Explanation of symbols]

 1 film unit with lens 7 shutter button 15 case body 16 opening 20 bottom lid 23 operation dial 27 release lever 28 release plate 29 connecting member 33 O-ring 34 spring 40 stepped portion 41 through hole 42 index finger 43 middle finger

Claims (1)

[Claims] 1. A release device in which a photographing mechanism is incorporated and a photographing unit in which a film is loaded is housed in a watertight manner so as to be externally operable. A release device is slidably provided along a surface of the waterproof case. A release operation plate that is large enough to allow multiple fingers to be placed at the same time when the waterproof case is gripped during shooting, and a shutter provided in the shooting unit inside the waterproof case, linked to the slide operation of this release operation plate. A waterproof case release device comprising a release lever for pressing a button.