JPH04116838U - camera waterproof case - Google Patents

Abstract

(57) [Abstract] [Purpose] To improve the operability and operational reliability of a waterproof case that watertightly houses a commercially available disposable camera. [Structure] A housing section 13 provided on the back side of a bottomed case body 11 made of a transparent synthetic resin material is provided with operating means that engages with the film take-up reel 6 of the camera 1 and winds the film. An elastic piece 26 is provided on one of the operating knob 25 constituting the operating means and the shaft 21 to which the operating knob 25 is attached, and a protrusion 22 with which the elastic piece 26 contacts is provided on the other.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a waterproof case for a camera. The present invention relates to a waterproof case that can be housed in a camera and can be easily photographed in the rain or underwater.

0002

[Conventional technology]

The applicant has already proposed this type of waterproof case in Japanese Patent Application No. 1-316071. ing. This waterproof case is made of transparent synthetic resin material as shown in Figure 8. The camera 1 is housed in a bottomed case body 40, and a sealing member 9 is placed in the opening 41. After welding and sealing the inside, the lid 10 is fitted into the opening 41 to seal it watertight. The drive is installed in a housing part protruding from the back of the case body 11 in a semi-cylindrical shape. An operating means 44 consisting of a gear, an operating knob, and a shaft connecting the two is rotatably provided. The camera's film take-up reel, which is engaged with the drive gear, is externally driven and the film is taken up. Wind up the film and use the shutter operation piece 43 attached to the insertion hole 42 to close the shutter. I was trying to operate button 7.

0003

[Problem that the idea aims to solve]

In the conventional camera waterproof case described above, the camera's take-up reel is Since the operation is performed from the outside of the case via the operating means, the corresponding Did the camera's stopper mechanism, which stops the take-up reel, operate? It is difficult to convey the feeling of whether or not the film is being wound, and the winding of the film may be incomplete or may not be done by force. Winding up may wear out resin parts such as gears that mesh with each other, and may cause Doing so may damage the stopper mechanism of the housed camera. This may make it impossible to wind the film or allow debris from parts to adhere to the lens. This poses a problem in that it may have an adverse effect on photography. This invention is based on This is an attempt to solve the conventional problems described above.

0004

[Means to solve the problem] In this invention, the camera is connected to a drive gear that meshes with the take-up reel of the housed camera. An elastic piece is provided on either the mounting shaft or the operating knob that fits on the mounting shaft, and , the above conventional problems are solved by providing a protrusion on the other side that locks the elastic piece. did.

[0005]

[Effect]

When the stopper mechanism of the camera's take-up reel operates, the elastic piece engages the take-up reel. When the rotational resistance of the driven gear increases, it bends and disengages from the protrusion, reducing the rotational force. is not transmitted to the drive gear.

[0006]

【Example】

Hereinafter, one embodiment of the present invention will be described based on the drawings. Housed in the waterproof case of this invention. As shown in Figures 7 and 8, a camera that can accommodate A so-called rectangular parallelepiped that is long in the direction and has a thickness smaller than its height. It's a throwaway camera. The camera 1 has a fixed focus lens 2 in the center of the front surface 1a. The attached lens barrel 3 is protruded, and a rectangular finder window 4 is opened on the upper right side. be done. The finder window 4 is reduced in diameter and opens to penetrate to the rear surface 1b of the camera, A finder eyepiece window 5 is formed. Also, as shown in Fig. 7, at the upper right of the rear surface 1b. A take-up reel 6 made of synthetic resin is provided which is rotatable around a vertical axis. this On the outer periphery of the take-up reel 6, a plurality of anti-slip grooves are provided circumferentially along the axial direction of the take-up reel 6. A portion of the camera 1 protrudes from the rear of the camera 1. Also, camera 1 On the top surface 1c, a shutter button 7 is recessed on the left side when viewed from the front side, and then A film counter 8 is provided at the rear. Then, the lens barrel 3 and the lens barrel 3, Inner window 4, finder eyepiece window 5, take-up reel 6, shutter button 7 and fin The entire body except the part where the room counter 8 is installed is made of processed paper or synthetic resin, for example. covered by a casing.

[0007] Figure 1 is a front view of the waterproof case of the present invention that houses the above-mentioned camera, and Figure 2 is its plan view. , FIG. 3 is a left side view. As shown in the diagram, the waterproof case of the present invention is made of translucent material. through a sealing member 9 that seals the opening 16 of the case body 11 with a bottom. The lid body 10 is fitted thereon.

[0008] The case body 11 is compatible with the lens 2 and finder window 4 of the camera 1 mentioned above. As shown in FIG. This ensures that no distortion occurs. and corresponds to shutter button 7 of camera 1 The portion is cut out, a first insertion hole 14 is formed, and the elastic piece 17 is pivoted on one side. After it is attached to the base, its upper surface is sealed watertight with a sealing member, which will be described later. Also, applicable The position corresponding to the take-up reel 6 of the camera 1 on the rear wall of the case body 11 has a semi-cylindrical protrusion. a second insertion hole which is extended out and rotatably holds the operating means for driving the take-up reel 6; 15 is formed. The operating means is shown in the cross-sectional view of the main part in FIG. As shown in the exploded perspective view of FIG. A driving gear 19 that fits, a mounting shaft 21 that fits the shaft 20 of the driving gear 19, and a mounting shaft 21 that fits the shaft 20 of the driving gear 19; The attached shaft 21 is fitted onto the bearing 23 and the mounting shaft 21 through the packing 24. and an operating knob 25, which can be installed by sealing the insertion hole 15 watertightly. Ru. Here, in the present invention, an elastic piece 26 is attached to the operation knob 25 as shown in the figure. and a protrusion 22 with which the elastic piece 26 engages is provided on the mounting shaft 21. There is. The elastic force of this elastic piece 26 is the driving force of the take-up reel and the stopper machine, which will be described later. Determined by the locking force of the structure.

[0009] The camera 1 is aligned in the front and back directions with the case body 11 having the above configuration, and then When inserted into the opening 16 from the surface 1c, the drive gear 19 of the operating means is inserted into the camera rear surface 1b. is meshed with the outer periphery of the take-up reel 6 and stored, and then a sealing member is inserted into the opening 16. By welding 9 and fitting the lid 10, the camera 1 is assembled as shown in FIGS. 1 to 3. It is housed in a watertight case.

0010 The camera 1 housed in the waterproof case in this way is located at the rear of the case body 11. When the operating knob 25 is rotated, the elastic piece 26 of the operating knob 25 moves onto the mounting shaft 21. comes into contact with the projection 22 of the drive gear 1 and rotates the mounting shaft 21, whereby the rotational force is transferred to the drive gear 1. 9 to the take-up reel 6 of the camera 1, and the film is wound up. . Then, the film is wound up, and the stopper mechanism (not shown) of the camera 1 When activated, the rotation of the take-up reel 6 is stopped, so the resistance of the engaged drive gear 19 is reduced. The resistance increases, and a force greater than the preset winding force is applied to the operating knob 25. When the elastic piece 26 bends and climbs over the protrusion 22, the operating knob 25 becomes idle. do. Therefore, the take-up reel 6 is not forced to be driven, and this protrusion is The user can easily complete the film winding by the feeling and sound when crossing over. Can be sensed. After winding the film in this way, the case body 11 is When the seal member 18 attached to the insertion hole 14 is pressed down, the shutter of the camera 1 is closed. The tar button 7 is pressed down via the elastic piece 17 to take a picture. And take pictures When the finger is removed from the sealing member 18 after the shadow is released, the sealing member 18 is moved by the elastic force of the elastic piece 17. It will return to its original state. In this way, the waterproof case for the camera of this invention can be used to protect the camera. You can wind the film and operate the shutter while the camera is housed in a watertight manner, allowing you to protect it from rain or water. Photographs will be taken inside.

[0011] In this embodiment, an elastic piece is provided on the operating knob, and a protrusion that the elastic piece abuts on the mounting shaft is provided. Although we have shown an example in which a spring is provided, it is also possible to provide an elastic piece on the mounting shaft side and the elastic piece on the operation knob side. It is also possible to provide a locking protrusion.

0012

[Effect of the idea]

As mentioned above, the waterproof case of the camera of this invention will snap if a force exceeding a certain value is applied. The control knob that winds the ilm rotates idly, so the engaged gears etc. There is no risk of wearing out oily parts or damaging the camera's stopper mechanism, and the camera is The camera may not be able to wind the lens, or wear debris from parts may adhere to the lens, adversely affecting photography. It doesn't have any impact. Also, the feel and sound when the elastic piece goes over the protrusion. This allows you to easily detect the completion of film winding, is easy to use, and comes with a waterproof case. This has an excellent effect on improving the operability and operational reliability of the system.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the waterproof case of the present invention.

FIG. 2 is a plan view of the same as above.

FIG. 3 is a side view of the same as above.

FIG. 4 is an enlarged sectional view of the main part of the same as above.

FIG. 5 is an exploded perspective view of the operating means.

FIG. 6 is a perspective view of the case body.

FIG. 7 is a rear perspective view of the stored camera.

FIG. 8 is an exploded perspective view of a conventional example.

[Explanation of symbols]

1 camera 6 Take-up reel 7 Shutter button 9 Seal member 10 Lid body 11 Case body 13 Storage section 14,15 Insertion hole 19 Drive gear 21 Mounting shaft 22 Protrusion 25 Operation knob 26 Elastic piece

──────────────────────────────────────────────── ─── Continuation of front page (72) Creator Ritsuo Kunikata 1-10-12 Kaminishi, Hirano-ku, Osaka City, Osaka Prefecture Inside Kamaya Chemical Industry Co., Ltd.

Claims (1)

[Scope of utility model registration request] [Claim 1] Made of a synthetic resin material having translucency,
The camera is housed in a watertight manner by fitting the lid through a sealing member to the bottomed case body, which has a semi-cylindrical housing protruding from the back and an operating means that engages with the camera's film take-up reel. In the waterproof case for the camera, an elastic piece is provided on either one of the operating knob of the operating means and the mounting shaft of the operating knob, and a protrusion that engages with the elastic piece is provided on the other, so that A waterproof case for a camera, characterized in that the elastic piece and the protrusion disengage from each other in response to a winding input, thereby preventing excessive force from being transmitted to the film take-up reel.