JP3114315B2 - Waterproof mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof mechanism used for opening and closing a back cover of a waterproof camera or the like .

[0002]

2. Description of the Related Art Conventionally, as a back cover opening / closing device for a waterproof camera used for opening / closing a back cover of a waterproof camera, for example, as disclosed in Japanese Utility Model Publication No. There is a known camera that is fixed to a camera body in a sealed state.

[0003]

However, in such a conventional back cover opening / closing device for a waterproof camera, even if the buckle is released in order to finish the underwater photographing with the waterproof camera and take out the film, the back cover is opened. However, there is a problem that the camera is in close contact with the camera body and it is difficult to easily open the camera by hand.

Therefore, conventionally, for example, a tool such as a screwdriver is prepared in advance, and the back cover is opened using these tools. The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a waterproof mechanism capable of easily and securely opening a back cover.

[0005]

According to the first aspect of the present invention, there is provided a waterproofing mechanism .
In a waterproof mechanism capable of fixing the lid to the apparatus body in a sealed state, the lid is manually operable, and has opening means for pressing the lid in a direction in which the lid is opened in accordance with the operation. In response to the operation, the closed state between the lid and the apparatus main body is released, and the opening means includes a buckle main body rotatably provided on the apparatus main body, and a buckle main body. A hook portion rotatably provided with respect to the pin and engageable with a pin on the lid, and the buckle body is rotated in a predetermined direction when the hook portion is in an engaged state with the pin. After the engagement between the hook portion and the pin is released in response to the operation, and after the hook portion is released from the engagement with the pin, the buckle body is rotated in a direction opposite to the predetermined direction. Rotation operation in the predetermined direction again If that, the hook portion so as to release the sealed state is characterized by pressing the pin. In the waterproofing mechanism according to claim 2, in the waterproofing mechanism according to claim 1 , the opening unit engages the hook and the pin so as to maintain the sealed state in the closed state, A body is mechanically locked to the device body.

[0006]

[Action] In the waterproof mechanism according to claim 1, when releasing the sealed state between the lid and the device, by operating the manually operable opening means, so pressing the lid in the opening direction, thereby the lid And the apparatus main body can be released from the sealed state. And, the opening means, a buckle body rotatably provided in the apparatus body,
A hook portion rotatably provided with respect to the buckle body and engageable with a pin on the lid body. When the hook portion is engaged with the pin, the buckle body is rotated in a predetermined direction. Then, the engagement between the hook portion and the pin is released in response to the operation, and after the engagement between the hook portion and the pin is released, the buckle body is rotated in the direction opposite to the predetermined direction, and then again. When rotated in the predetermined direction, the hook presses the pin so as to release the sealed state, and the sealed state between the lid and the apparatus body is released. In the waterproof mechanism according to the second aspect , by engaging the hook and the pin,
Lid is mechanically locked to the apparatus main body, by pressing the pin I by the hook portion in a state that releases the engagement between the hook portion and the pin, the sealing state between the cover member and the apparatus body is released .

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an embodiment of the waterproof mechanism of the present invention.
2 shows a back cover opening / closing device for a waterproof camera, and shows a cross section AA of the waterproof camera shown in FIG.

In FIG. 1, reference numeral 2 denotes a back cover, and reference numeral 3 denotes a camera body die casting. The end of the back cover 2 is integrally formed with a protrusion 2a that fits into the camera body die casting 3. The recess 2c formed in the protrusion 2a has a back cover 2 and the camera body die casting 3 formed therein.
An O-ring 11 for sealing a gap between the O-ring 11 and the O-ring 11 is disposed.

A pin 4 is fixed to an end of the back cover 2, and a shaft 5 is fixed to an end of the camera body die casting 3. A buckle body 15 is rotatably attached to the shaft 5.

The buckle body 15 includes a shaft 8 and a shaft 10.
The hook 8 is rotatably attached to the shaft 8. A lock lever 9 is rotatably attached to the shaft 10.

A tension spring 13 is hung between the buckle body 15 and the hook lever 7, and the buckle body 15
The hook lever 7 is biased clockwise in FIG.

A tension spring 14 is hung between the buckle body 15 and the lock lever 9, and the buckle body 15
The lock lever 9 is urged in the counterclockwise direction in FIG.

The hook lever 7 has a bent portion 7a, and a hole 7b is formed in the bent portion 7a. The shaft 16 is inserted through the hole 7b.
At one end of 6, a flange 16a is formed.

The other end of the shaft 16 has a bottom surface 6 b of the hook 6.
Are fitted with a predetermined gap. The hook 6 is stopped by the clip 17 so that the hook 6 does not come off from the shaft 16.

The flange 16a of the shaft 16 and the bent portion 7a
Between them, a spring 12 is mounted, and the shaft 16 is urged in the arrow B direction. In the figure, reference numeral 18 denotes a lock member, which is housed in a left hand grip 21.

On the lock lever 9 side of the lock member 18,
A first convex portion 18a is formed, and the first convex portion 1a is formed.
The claw 9a of the lock lever 9 is locked by 8a. Then, the second convex portion 1 formed on the lock member 18 is formed.
A spring 19 is housed between the die 8b and the step 3a provided on the camera body die casting 3.

The spring 19 urges the lock member 18 in the direction C in FIG. The lock member 18 is a grip 2
The movement in the direction C in the figure is restricted by the restricting portion 21a formed in FIG.

Adjacent to the lock member 18, the lock member 1
An operation member 20 having a function of fixing the movement of the operation member 8 is arranged. FIG. 3 is an explanatory view showing a portion D in FIG. 2 in an enlarged manner. In the drawing, reference numeral 21 indicates a grip.

Inside the grip 21, a hollow portion 21b for accommodating the lock member 18 and the operation member 20 is provided.
Are formed. The grip 21 has a notch 2 for escaping the rotation locus of the claw 9 a of the lock lever 9.
1c is formed.

The lock member 18 has a third convex portion 18c and a concave portion 18d. On the other hand, the operation member 20
Has a first protrusion 20a, a second protrusion 20d, and a recess 20b.

Further, the operation member 20 has a long hole 20.
c is provided. 1 to 3 described above.
Shows a state in which the back cover 2 is sealed and the buckle body 15 is locked so as not to be accidentally removed.

Hereinafter, a method of operating the above-described back cover opening / closing device for a waterproof camera will be described in detail. First, to open the back cover 2 from the locked state shown in FIGS.
Is moved in the direction E of FIG.

Thus, the second convex portion 2 of the operating member 20
0d is the first concave portion 21 of the hollow portion 21b of the grip 21.
d moves to the second recess 21e. At this intermediate position, due to the elongated hole 20c, the second convex portion 20d is not
Elastic displacement in the direction.

When the operating member 20 moves in the direction E, as shown in FIG. 4, the first convex portion 20a and the third convex portion 18c of the lock member 18 face each other from the position where they face each other.
Of the lock member 18 are opposed to each other.

Thereafter, the lock member 18 is moved in the direction G in FIG. 4 against the urging force of the spring 19 in FIG. Thereby, the engagement between the first convex portion 18a of the lock member 18 and the claw 9a of the lock lever 9 is released.

The lock lever 9 is connected to the spring 14 shown in FIG.
1 rotates counterclockwise in FIG. 1 and abuts against the step 15b of the buckle body 15 and stops. Thereafter, when the buckle body 15 is rotated counterclockwise in FIG. 1, the shaft 16 moves in the direction B under the action of the toggle mechanism of the spring 12 shown in FIG.
a comes into contact with each other and the state shown in FIG. 5 is obtained.

Further, when the buckle body 15 is rotated counterclockwise in FIG. 5, the engagement between the pin 4 and the hook 6 is released, and the hook lever 7 is rotated clockwise by the action of the spring 13. As shown in FIG. 6, the buckle body 15 comes into contact with the convex portion 15a and stops.

When the buckle body 15 is rotated clockwise from this state, the outer peripheral portion 6a of the hook 6 comes into contact with the inside of the pin 4 as shown in FIG. Then, when the buckle body 15 is rotated counterclockwise again in FIG. 7 from this state, the outer peripheral portion 6a pushes the pin 4 to open the back cover 2 this time.

On the other hand, when closing the back cover 2, first, the hook 6 is locked to the pin 4. This lock is
The back cover 2 is pressed by hand against the camera body die casting 3 side, and FIG.
5, the buckle body 15 is rotated counterclockwise, and then the buckle body 15 is rotated clockwise to achieve the state shown in FIG.

The operation of closing the back cover 2 thereafter can be performed by reversing the procedure for opening the back cover 2 described above, and a detailed description thereof will be omitted. In the back cover opening / closing device for a waterproof camera configured as described above, the hook 6 is locked to the pin 4 when the waterproof camera is used, so that the back cover 2 of the waterproof camera is attached to the camera body die casting 3. On the other hand, when taking out the film from the waterproof camera, the back cover 2 is forcibly opened by pressing the pins 4 outward by the hooks 6, so that the back cover 2 is easily opened. It can be opened reliably.

Thus, the back cover 2 can be opened without using a tool such as a screwdriver.

[0032]

[Effect of the Invention] In the waterproof mechanism according to claim 1, when releasing the sealed state between the lid and the device, by operating the manually operable opening means, so pressing the lid in the opening direction, thereby The sealed state between the lid and the apparatus main body can be easily and reliably released. When the buckle body is rotated in a predetermined direction while the hook portion is in the engaged state with the pin, the engagement between the hook portion and the pin is released in accordance with the operation, and the engagement between the hook portion and the pin is performed. After the release, the buckle body is rotated in the direction opposite to the predetermined direction, and then, when the buckle body is rotated again in the predetermined direction, the hook presses the pin so as to release the sealed state. By the continuous rotation of the main body, the sealed state between the lid and the apparatus main body can be easily and reliably released. Pin waterproof mechanism according to claim 2, by engaging the hook portion and the pin, the lid is mechanically locked to the apparatus body, I by the hook portion in a state that releases the engagement between the hook portion and the pin By pressing
Since the sealed state between the lid and the apparatus main body is released, the lid and the apparatus main body can be locked and the sealed state can be released by the hook portion and the pin.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a back cover opening / closing device for a waterproof camera according to the present invention.

FIG. 2 is a front view showing the waterproof camera provided with the back cover opening / closing device for the waterproof camera of FIG. 1;

FIG. 3 is an enlarged view showing details of a portion D in FIG. 1;

FIG. 4 is an explanatory view showing a state in which the operation member is moved in a direction E in FIG.

5 releases the lock of the lock lever from the state of FIG. 1,
It is explanatory drawing which shows the state which rotated the buckle main body counterclockwise.

FIG. 6 is an explanatory view showing a state in which the buckle body is further rotated counterclockwise from the state of FIG. 5 to release the engagement of the hook with the pin.

FIG. 7 is an explanatory view showing a state in which the buckle main body is rotated clockwise from the state of FIG. 6 and the outer peripheral portion of the hook abuts on the pin.

[Explanation of symbols]

 2 Back cover 3 Die casting camera body 4 Pin 6 Hook 7 Hook lever 9 Lock lever 11 O-ring 18 Lock member 20 Operation member 21 Grip

Claims (2)

(57) [Claims] 1. The lid is fixed to the apparatus body in a sealed state.
In a possible waterproof mechanism, manual operation is possible, and the lid is opened according to the operation.
Opening means for pressing the cover body and the cover in response to the operation of the opening means.
The closed state with the device main body is configured to be released, and the opening unit is rotatably provided on the device main body.
A buckle body , provided rotatably with respect to the buckle body, and
A hook portion engageable with a pin on the lid, wherein when the hook portion is engaged with the pin,
When the knuckle body is rotated in a predetermined direction, it responds to the operation.
The engagement between the hook and the pin is released, and after the engagement between the hook and the pin is released, the back
After the main body is rotated in the direction opposite to the predetermined direction,
When the rotating operation is performed again in the predetermined direction, the closed state is released.
Wherein the hook portion presses the pin so as to remove the pin . 2. The method according to claim 1, wherein the opening means is in the closed state.
The hook portion and the pin so as to maintain the closed state.
And the lid is mechanically locked to the apparatus main body.
Waterproof mechanism according to claim 1, characterized in that the click.