JP3126234B2 - Panorama switching camera - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panorama switching camera capable of switching a shooting screen from a full size screen to a landscape screen, that is, a screen for obtaining a so-called panoramic picture, by operating an appropriate operation member during shooting. Things.

[0002]

2. Description of the Related Art Conventionally, in order to obtain a panoramic picture having a screen configuration that is wider than a full-size screen during shooting,
Various cameras having a configuration for switching a shooting screen have been proposed or put into practical use.

[0003] That is, a panoramic photograph is usually composed of appropriate areas 1a and 1b above and below the film 1 as shown in FIG.
Panorama size screen P
Was obtained by defining

[0004] Here, when taking a look at a photographing screen switching configuration of a conventionally well-known panorama switching camera capable of obtaining the above-mentioned film 1, usually, the above-mentioned appropriate regions 1a,
1b is provided, and these two shielding members are responsive to the switching operation of the photographing screen to regulate the full-size setting position and the photographing screen which do not restrict the photographing screen to the state shown in FIG. A switching configuration for interlocking movement between panorama size setting positions was adopted.

[0005] The field of view of the finder is mechanically or electrically switched in conjunction with the switching operation so that photographing failure can be prevented.

[0006]

As described above, the conventional panorama switching camera switches the photographing screen by two shielding members to obtain a panorama photograph. The switching configuration itself will be considered. And a structure in which the two shielding members are moved in conjunction with each other, which increases the number of parts and is easily affected by play of the constituent members. For example, when the panorama size itself cannot be set accurately, or when the panorama shooting screen is filmed It has a disadvantage that it may not be possible to set it accurately at a predetermined position on the surface.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-described disadvantages, and has as its object to provide a panorama switching camera that can set a panoramic size photographing screen with one member.

[0008]

SUMMARY OF THE INVENTION A panorama switching camera according to the present invention has a photographing screen mask member, a finder mask member, an operating member, and a transmitting means, and the photographing screen mask member has an elastic force. It is a single member formed of a resin material in a substantially rectangular shape, provided with a photographing opening defining a panoramic photographing screen in the center, a bent portion provided in a short side direction substantially in the center of the long side, and outside the photographing screen. A rotating shaft is provided on one short side located on the side, and an end to which a driving force is supplied is provided on the other short side, and is disposed closer to the subject than the film surface. The camera has a visual field opening that defines a panoramic photographing visual field, is movable in the viewfinder, the operation member is provided on the outer surface of the camera and is manually operated, and the transmission unit includes the operation member and a photographing screen mask. The photographic screen mask member is disposed between the material and the finder mask member, and transmits the operation of the operation member to the photographing screen mask member and the finder mask member. The panorama shooting state in which the shooting opening is positioned in front of the shooting screen with the shooting opening positioned in a state where the shooting opening is not bent forward of the film surface, and the shooting opening is bent at the bending portion and retracted out of the shooting optical path. The normal finder state is set, and the finder mask member moves in conjunction with the photographic screen mask member by operating the operation member via the transmission means, and the panoramic view state in which the finder view field is defined by the view opening, and the finder view field It is configured to set a normal finder visual field state in which the visual field opening is retracted from the camera.

[0009]

Since the panorama switching camera according to the present invention is constructed as described above, when the operating member is operated, the driving force is transmitted through the transmission means, and the photographing screen mask member and the finder are formed as a single member. It will be transmitted to the mask member.

Therefore, the photographing screen mask member is rotated on the side of the photographing screen from the film surface to the side of the photographing screen about a rotation axis formed in the short side direction thereof, and the finder mask member is also the photographing screen mask member. Moves in the finder in conjunction with the rotation of.

The photographing screen mask member is rotated to set a non-bending state and a bending state at the bent portion. In the former state, the photographing opening is arranged immediately before the film, and the photographing screen is turned into a panoramic photographing screen. In the latter case, the photographic aperture is arranged in front of the film that does not obstruct the optical path, and the photographic screen is set to a normal full-size photographic screen.

That is, according to the present invention, the switching between the normal photographing state for photographing in full size and the panoramic photographing state for photographing in panoramic size is performed by a single member whose rotation operation is controlled by operating the operation member. This is performed by the photographing screen mask member to be formed.

At the same time, the finder mask member is also moved in the finder to set a panoramic field state in which the finder field is defined by the field opening and a normal finder field state in which the field opening is retracted from the finder field. Become.

[0014]

1 to 4 are schematic views showing an embodiment of a camera body according to the present invention. FIGS. 1 and 2 show a normal shooting, that is, a full-size shooting screen setting state in which a full-size shooting can be performed. 3 and 4 respectively show a schematic front view and a schematic top view of a main part in a panorama shooting screen setting state in which panorama shooting can be performed.

1 to 4, a photographing screen mask member 2 is a single member formed of a resin material having elasticity in a substantially rectangular shape, and has a photographing opening 3 for defining a panoramic photographing screen in the center. Have.

The photographing screen mask member 2 has a bent portion 4 provided at a substantially central portion of a long side in a short side direction.

Further, a rotating shaft 5 is supplied to one short side located outside the photographing screen, and a driving force by operation of an operation member described later is supplied to the other short side via an operation member described later. An end 6 is provided, and as shown in FIG. 2, it is arranged on the photographic lens L side, that is, on the subject side with respect to the film surface F shown by the dashed line.

The finder mask member 7 has a visual field opening 8 for defining a panoramic photographing visual field, and is configured to be movable in a finder (not shown).

The operation member 9 is provided on the outer surface of the camera (not shown), and is manually operated in the directions indicated by arrows A and B in the figure.

The transmission means 10 includes a connecting member 11 connected to the operating member 9 and an operating member 9 connected to the connecting member 11.
A distributing member 12 for distributing the driving force supplied thereto, a first control member 13 connected to the distributing member 12 for supplying the driving force to the photographing screen mask member 2, and a distributing member 12 for connecting the driving force to the finder mask member 2nd feed to 7
And a control member 14.

That is, the transmission means 10 is disposed between the operation member 9 and the photographing screen mask member 2 and the finder mask member 7, and controls the operation member 9 to operate the photographing screen mask member 2.
And to the finder mask member 7.

Hereinafter, the operation of the panorama switching camera according to the present invention having the above configuration will be described in detail.

When the operating member 9 is now operated in the direction of arrow A in the normal shooting state in which the full-size shooting shown in FIGS. 1 and 2 is performed, the driving force based on this operation is transmitted to the transmission means 1.
0 is supplied to each member such as the connecting member 11 that constitutes the reference numeral 0.

The coupling member 11 rotates counterclockwise about the shaft 11a when the driving force is supplied.

The distribution member 12 is connected by a well-known connection structure including a groove 11b and a pin 12b of the rotation member 11, and the rotation of the rotation member 11 in the counterclockwise direction causes the shaft 12 to rotate.
Rotate clockwise around a.

The distribution member 12 is also connected to a pin 13b of the first control member 13 via a long groove 12c and to a second control member 14 via a pin 12d. The first control member 13 is rotated clockwise about the axis 13a, and the second control member 14 is rotated clockwise about the axis 14a.

When the first control member 13 rotates clockwise about the shaft 13a, its rotational driving force is applied to the one end 13a.
The light is transmitted to the photographing screen mask member 2 via the end 6 which is inserted so as to be movable to the hole c.

At the same time, the second control member 14 turns the pin 7a fitted so that its rotational driving force can be moved to the groove 14c formed in the one end 14b by the clockwise rotation about the shaft 14a. Finder mask member 7 through
To communicate.

Therefore, the photographing screen mask member 2 rotates clockwise around the rotation axis 5, that is, in the direction approaching the film surface F, and the finder mask member 7 moves in the same direction as the arrow A. become.

The rotation of the photographing screen mask member 2 is performed while releasing the bending state by the bending portion 4. It is noted that the shaft 13a of the first control member 13 shown in FIG.
It is clear from the relationship between the end portion 6 and the end portion 6 that finally rotates until it is not bent at the bent portion 4 as shown in FIGS.

Further, the finder mask member 7 finally moves to the position as shown in FIGS.

That is, a photographing opening 3 for defining a panoramic photographing screen of the photographing screen mask member 2 is arranged immediately before the film surface F, and a panoramic photographing state in which the photographing screen is controlled by the photographing opening 3 is set. As for the field of view, the panoramic photographing field of view by the field opening 8 of the finder mask member 7 is set.

In other words, by operating the operating member 9 in the direction of arrow A from the normal photographing state shown in FIGS. 1 and 2, the photographing screen and the viewfinder field of the camera are changed as shown in FIGS.
The state is switched to the panoramic shooting state shown in FIG.

On the other hand, in the panoramic photographing state shown in FIGS. 3 and 4, when the operating member 9 is operated in the direction indicated by the arrow B opposite to the direction indicated by the arrow A, the connecting member 11 constituting the transmitting means 10 is connected. And so on perform an operation opposite to the above-described operation.

That is, the connecting member 11 rotates clockwise about the shaft 11a, and the distribution member 12, the first and second control members 13, 14 rotate counterclockwise about the shafts 12a, 13a, and 14a, respectively. Become.

Therefore, the photographing screen mask member 2 rotates around the rotation shaft 5 toward the subject while being bent by the bending portion 4, and the finder mask member 7 moves in the direction of arrow B, and finally Rotates and moves to the state shown in FIGS. 1 and 2, respectively.

As a result, the photographing opening 3 for defining the panoramic photographing screen of the photographing screen mask member 2 is moved from immediately before the film surface F and is disposed in front thereof, whereby the photographing opening 3 is retracted out of the photographing optical path. Thus, the normal photographing state not controlled by the photographing aperture 3 is set as the photographing screen, and at the same time, the normal photographing field of view not defined by the field opening 8 of the finder mask member 7 is set.

In other words, by operating the operating member 9 in the direction of arrow B from the panoramic photographing state shown in FIGS. 3 and 4, the photographing screen and finder field of view of the camera can be changed as shown in FIGS. The state is switched to the shooting state.

[0039]

The panorama switching camera according to the present invention has the following features.
As described above, the switching between the normal shooting state and the panorama shooting state by operating the operation member is performed by the operation of the shooting screen mask member which is a single member having the shooting opening that defines the panorama shooting screen, This eliminates the need for an interlocking configuration of the two shielding members, which was necessary because two shielding members were conventionally used, and thus has the effect of reducing the number of components.

Also, since the number of parts can be reduced,
There is an effect that the panoramic photographing screen can be set more accurately at a predetermined position on the film surface because it is hardly affected by backlash or the like of the constituent members.

Furthermore, since the panoramic photographing screen is defined by the photographing aperture formed in a single member, the panoramic size itself can be set more accurately than when the panoramic size itself is defined by using two shielding members. have.

[Brief description of the drawings]

FIG. 1 is a schematic front view of a main part showing a setting state of a full-size shooting screen in an embodiment of a panorama switching camera according to the present invention.

FIG. 2 is a schematic top view of a main part showing a setting state of a full-size shooting screen in an embodiment of a panorama switching camera according to the present invention.

FIG. 3 is a schematic front view of a main part showing a panorama size shooting screen setting state in an embodiment of a panorama switching camera according to the present invention.

FIG. 4 is a schematic top view of a main part showing a panorama size shooting screen setting state in an embodiment of a panorama switching camera according to the present invention.

FIG. 5 is a plan view of a film from which a panoramic photograph can be obtained.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 film 2 photographing screen mask member 3 photographing opening 4 bending portion 5 rotating shaft 6 end 7 finder mask member 8 field opening 9 operating member 10 transmitting means 11 connecting member 12 distribution member 13 first control member 14 second control member

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuto Mobara 2-9-95 Nagara Higashi, Kita-ku, Osaka West Electric Co., Ltd. (58) Field surveyed (Int. Cl. ⁷ , DB name) G03B 17/28 G03B 17/20

Claims (1)

(57) [Claims] 1. A panorama switching camera having a photographing screen mask member, a finder mask member, an operation member, and a transmitting means, wherein the photographing screen mask member is formed of a resin material having elasticity in a substantially rectangular shape. Is a single member formed at a central portion, a photographic opening that defines a panoramic photographic screen, a bent portion provided in a short side direction at a substantially central portion of a long side, and a side positioned outside a photographic screen. The rotation axis is provided on the short side, and the other short side is provided with an end to which a driving force is supplied, and is disposed on the subject side with respect to the film surface. The finder mask member defines a panoramic shooting field of view. The operation member is provided on the outer surface of the camera and is manually operated, and the transmission means includes an operation member, a photographing screen mask member, and a finder mask. It is disposed between the members, and transmits the operation of the operation member to the photographing screen mask member and the finder mask member, and the photographing screen mask member rotates about the rotation axis by operating the operation member via the transmission means. ,
A panoramic shooting state in which the shooting aperture is positioned in front of the shooting screen with the shooting aperture positioned in front of the film surface, and a normal shooting state in which the shooting aperture is bent at the bent portion and retracted out of the shooting optical path. The viewfinder mask member is moved in conjunction with the photographing screen mask member by operating the operation member via the transmission means, and the panoramic view state in which the viewfinder field is defined by the view opening, and the view opening is retracted from the viewfinder view. A panorama switching camera that sets the normal viewfinder state.