JPS6146529Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a camera revolving bag attaching/detaching device for attaching/detaching a revolving bag to/from the camera body which is detachable from the camera body and has a roll film holder attached thereto.

Cameras are already known in which such a rotating bag is rotated by 90 degrees with respect to the camera body to enable photographing in both vertical and horizontal positions.
These revolving bags include those that are fixed to the camera body and those that are detachable from the camera body. Among these, conventional rotating bags that can be attached to and removed from the camera body have the disadvantage that the structure is complicated because the sliding surface during the rotating operation and the sliding surface when attaching and detaching the bag are different. It was hot.

The object of the present invention is to provide a revolving bag attachment/detachment device for a camera that eliminates the drawbacks of the conventional devices described above and is capable of performing a rotating operation for rotating a revolving bag and a bag attachment/detachment operation with a simple structure. A first ring attached to the facing surface of either the camera body or the revolving bag, and a plurality of rings planted along this first ring, each with a small diameter part formed in the middle part. a second ring rotatably attached to the other opposing surfaces of the camera body and the revolving bag, and having an inner diameter that can fit into the small diameter portion of the pin;
A plurality of pin insertion holes are provided in the member to which the second ring is attached, corresponding to the pins, through which the pins can be inserted; the second ring has a plurality of recesses for attaching and detaching the pin through which the large diameter portion of the tip of the pin can pass without interference; The pins are formed at a plurality of locations corresponding to the pins.

The present invention will be explained below with reference to embodiments shown in the drawings.

As shown in FIGS. 1 and 3A and 3B, a first ring 4 is disposed on the surface 3 of the camera body 1 facing the revolving bag 2.
The ring 4 is fixed by an annular mounting plate 6 fixed to the camera body 1 by a plurality of screws 5, 5, . The first ring 4 is made of a flexible material, and its inner circumferential side faces above the recess 7 of the camera body 1, and is adapted to flex to some extent when pressed from above. Four protrusions 8, 8... are formed on the inner periphery of the first ring 4 at right angles in the circumferential direction, and each protrusion 8 has a pin protruding toward the revolving bag 2. 9 have been planted.

Each pin 9 has a small diameter portion 10 formed at its intermediate portion.

On the other hand, on the surface 11 of the revolving bag 2 facing the camera body 1, as shown in FIGS. The tip of the abutting plate 12 is adapted to come into pressure contact with the first ring 4 when the revolving bag 2 is attached to the camera body 1, thereby blocking light from the outside. Four protrusions 13, 13, . An insertion hole 14 is formed. A second
A ring 15 is fitted to the abutment plate 12 so as to be able to rotate independently, and the inner peripheral edge of this second ring 15 partially faces into the pin insertion hole 14 of the abutment plate 12, and the pin insertion hole 14 of the abutment plate 12 is partially exposed. 9 is designed to prevent insertion and removal. Further, on the inner periphery of the second ring 15, four recesses 16, 16 are provided at right angles in the circumferential direction.
... are formed, and when the second ring 15 is rotated and the recess 16 matches the pin insertion hole 14, the pin 9 can be inserted and removed. Note that the pin 9 is located in the recess 1 of the revolving bag 2.
7, the second ring 15 faces the small diameter portion 1 of the pin 9.
It is designed to come into pressure contact with the tip side within the 0. Further, a knob 18 is attached to the second ring 15 for rotating the ring 15 between a lock position and an open position.

Next, the operation of the above-described embodiment will be explained.

To attach the revolving bag 2 to the camera body 1, turn the knob 18 of the second ring 15 to the open position where the recess 16 of the ring 15 matches the pin insertion hole 14 of the abutment plate 12. put. Then, the revolving bag 2 is attached to the camera body 1 so that the pin 9 of the first ring 4 is inserted into the pin insertion hole 14 of the revolving bag 2. Next, when the second ring 15 is rotated clockwise while holding the knob 18, the inner diameter portion of the second ring 15 comes into pressure contact with the tip side of the small diameter portion 10 of the pin 9.
The pin 9 no longer comes out of the pin insertion hole 14, and the revolving bag 2 is completely attached to the camera body 1.

Therefore, if the revolving back 2 is rotated to the vertical or horizontal position, a photograph can be taken at a predetermined position.
The second ring 15 located on the outer periphery of the impact plate 12 rotates synchronously with the impact plate 12.
Since the lens 2 is always in pressure contact with the first ring 4, no light can enter from the outside during photography.

To remove the revolving bag 2 from the camera body 1, hold the knob 18 and remove the second ring 15.
When rotated counterclockwise, this second ring 15
The recess 16 matches the pin insertion hole 14 of the abutting plate 12, so that the pin 9 can be removed from the pin insertion hole 14. Therefore, by separating the camera body 1 and the revolving bag 2, both can be removed.

In the embodiment described above, the camera body 1 is provided with the first ring 4 and the pin 9, and the revolving bag 2 is provided with the impact plate 12 and the second ring 15. ,
Camera body 1, impact plate 12 and second ring 1
5, and the first ring 4 is attached to the revolving bag 2.
A pin 9 may also be provided.

As described above, the camera revolving back attachment/detachment device of the present invention has a simple structure because the sliding surfaces between the first ring and the impact plate, which are the sliding surfaces during revolving back operation, are separated when the revolving back is removed.In addition, since the first ring remains attached, it has the excellent effect of being advantageous in terms of lubrication, dirt, scratches, etc.

[Brief explanation of the drawing]

1 to 3A and 3B are views showing an embodiment of the camera revolving bag attaching/detaching device according to the present invention, and FIG. 1 is a front view of the opposing surface of the camera body;
Figure 2 is a front view of the opposing surface of the revolving bag.
Figure 3 A and B are lines A-A and B- in Figure 1 with the revolving bag attached to the camera body.
It is a partial cross-sectional view of a portion corresponding to line B. 1...Camera body, 2...Revolving bag, 4...First ring, 9...Pin, 10...Small diameter portion of pin, 12...Abutting plate, 14...Pin insertion hole, 15...No. 2nd ring, 16... recess of the second ring.

Claims (1)

[Scope of utility model registration request] The camera has a revolving bag which is detachable from the camera body and has a roll film holder attached thereto, and the revolving bag is rotatable by approximately 90 degrees with respect to the camera body. The first one attached to the opposing surface of either side of the bag.
a ring, a plurality of pins implanted along the first link, each having a small diameter portion in the middle, and rotatably attached to the other opposing surfaces of the camera body and revolver bag; a second ring having an inner diameter that can fit into the small diameter portion; a plurality of pin insertion holes provided in the member to which the second ring is attached in correspondence with the pins, into which the pins can be inserted; and an annular abutment plate that presses against the first ring when the inner diameter part of the second ring is fitted into the small diameter part of the pin, and the second ring has a large diameter tip of the pin. A revolving bag attachment/detachment device for a camera, in which a plurality of recesses for attaching/detaching a pin through which parts can pass without interference are formed at a plurality of locations corresponding to the pins.