JP2573805Y2 - Panorama adapter - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panoramic adapter which can be inserted and removed in place of a lid when a film holder having a removable light-shielding lid is mounted on a camera body.

[0002]

2. Description of the Related Art Panoramic cameras, which are so-called swing types, have been used for a long time to photograph a wide field of view so that they can be seen at a glance. This is to sequentially expose the arc-shaped film surface while rotating the photographing lens and the exposure slit around the rear node of the photographing lens as the center of rotation.

A panoramic camera of this type can capture a full field of view ranging from 180 degrees to 360 degrees by increasing the rotation angle. However, the apparatus becomes larger and heavier and is not suitable for capturing moving objects and the like. Therefore, it was not something that could be carried easily by ordinary amateurs.

Then, with the rapid progress in lens design technology, 6 × 1 on a brownie film using a wide-angle lens.
Some panoramic cameras that can capture panoramic screens such as 2 cm and 6 x 17 cm have appeared, but they cannot be processed with a widespread enlarger of 6 x 9 cm or smaller. However, the fee was the same as that for photographic paper of the same size, giving a remarkably high price and could not be expected to spread to the general public.

[0005] However, in recent years, the upper and lower portions of the screen have been masked using a 35 mm film, so that a 13.times.3
As panoramic cameras capable of capturing 6-mm panoramic images have been supplied to the market, the explosive trend of panoramic cameras has begun in conjunction with the inexpensive panoramic print services of laboratories.

Accordingly, a mask is mounted on the screen frame of a normal 35 mm format camera so that a 24 × 36 mm format and a 13 × 3 format are used.
By switching to the 6 mm format, a panoramic camera that can switch between normal shooting and panoramic shooting as required has appeared on the market.

[0007]

However, in such a conventional panoramic camera having a focal plane shutter, the mounting bracket of the mask mounted on the screen frame interferes with the shutter film or the shutter blade. Could be damaged. To avoid this, an expensive mask mounting jig was required, and it was difficult for an amateur to easily replace the mask.

Furthermore, since the screen frame can be switched only when the back cover is opened, there is a problem in that it is not possible to switch between normal photographing and panoramic photographing at any time according to the subject, which is inconvenient.

The present invention has been made in view of the above points, and has as its object to provide a panorama adapter that can switch between a normal screen and a panorama screen at any time according to the conditions of a subject.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a film having a light-shielding lid which can be inserted and removed.
With the holder attached to the camera body, pull out the lid
Release operation on the camera body only when
Remove from the camera body only when the lid is inserted
Film holder with lid detection means
A panoramic adapter that can be inserted and removed instead of the lid,
Is characterized in that:

[0011] That is, an opening is provided for exposing only the intermediate band by blocking the top and bottom or left and right of the screen frame when inserted into the film holder, and a detection release means for disabling the lid detection means is provided. It is a thing .

Further, in the above panoramic adapter, it is preferable that an interference preventing means for preventing collision with a light leakage preventing light shielding member provided at a lid insertion opening of the film holder is provided at the opening on the distal end side.

[0013]

The panorama adapter according to the present invention is constructed as described above, and when the panorama adapter is inserted by pulling out the lid with the film holder attached to the camera body, the top and bottom or left and right of the screen frame are shielded, A screen frame is formed to enable panoramic shooting. When the panorama adapter is pulled out of this state, normal shooting becomes possible.

Then, the film holder serves as a lid detecting means.
Even if a panorama adapter is inserted, the lid detection means can be disabled by inserting the panorama adapter , so that even when the panorama adapter is inserted, panorama shooting can be performed without requiring extra operation. In this state, it is possible to eliminate the possibility that the film holder cannot be removed and the film surface is erroneously exposed.

Further, if an interference preventing means with the light-shielding member of the film holder is provided in the opening on the front end side of the panorama adapter, there is no danger that the end face of the opening abuts against the free end of the light-shielding member when the panorama adapter is pulled out. At the same time, it becomes possible to smoothly insert and remove the panorama adapter.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to the drawings. FIG. 4 is a front perspective view showing a 35 mm film holder for implementing the present invention and a light-shielding lid, FIG. 5 is a perspective view showing the internal configuration of the 35 mm film holder by removing a part of the exterior, and FIG. FIG. 3 is a rear perspective view of a camera body to which the film holder can be attached.

The camera body 1 has a brownie film holder capable of photographing a 42 × 56 mm wide screen on a 120 or 220 size brownie film, and a 35 mm capable of photographing a 24 × 36 mm wide screen on a 135 size 35 mm film. This is a focal-plane shutter-type single-lens reflex camera, which can be exchanged with a film holder at any time as needed.

At the lower rear portion of the camera body 1 shown in FIG.
A locking plate 11 engageable with a locking plate 21 of a 35 mm film holder (hereinafter referred to as a “film holder”) 2 shown in FIGS.
a, 2a, through which a connecting hole 22 of a slide lever 22 (see FIG. 5) described later is provided slidably to the left and right.
taper portion 12a, step portion 1 engageable with side walls of a, 22a
A pair of locking claws 12 provided with 2b are fixedly provided.

A connection pin 13 for transmitting information, which can be connected to the connection terminal 23 on the film holder 2 side, is provided on the upper left side of the rear surface of the camera body 1 so as to urge rearward. Is provided with a drive gear 14 meshable with the film winding gear 24 of the film holder 2.

Outside the film holder 2, a screen frame 2b is provided on the front, a holder body 20 on the right side and the front plate 2 shown in FIG.
0a, a sliding lid insertion opening 2 into which the shielding lid 4 can be inserted.
c are formed, and a film rewind knob 25, a film holder removal button 26, and an opening button 28 of the back cover 27 are provided on the right side surface of the holder body 20, respectively.

As shown in FIG. 5, a slide arm 29 is mounted on the upper surface of the film holder 2 so as to be slidable in the right and left directions by biasing the slide arm 29 to the right by a return spring 30. A projection 29 b is formed on the slide arm 29, and the projection 29 b is formed.
is inserted into the notch 22b of the slide lever 22, and the film holder removal button 26 is pushed in against the return spring 30, so that the slide lever 22 moves to the left via the slide arm 29, and the connection hole 22a Is disengaged from the side wall of the camera 1 and the step 12b of the locking claw 12, so that the film holder 2 can be removed from the camera body 1.

Then, the first lid detecting lever 32 is pivotally connected to the shaft 31 by the shaft 31 adjacent to the slide lever 22 and urged in the left-handed direction by the spring 33 so that the locking portion 32a is bent by the slide lever 22. It can be freely disengaged from the part 22c. further,
A normally-open leaf switch 36 having a second lid detecting lever 35 pivotally mounted on a shaft 34 adjacent to the printed circuit board 23a provided with the above-described connection terminal 23 and having an upper end thereof provided on the back surface of the printed circuit board 23a. Are biased in the left-handed direction by the movable contact piece 36a so that the release operation of the camera body 1 can be performed when the leaf switch 36 is off, thereby constituting two kinds of lid detecting means.

In FIG. 5, reference numeral 37 denotes a light-shielding member made of a flocked cloth such as telemp provided on the front surface of the holder main body 20 so as to be able to undulate. When the lid 4 is inserted, the lid is in close contact with the rear surface thereof, and when the lid is removed, the lid is closely attached to the back surface of the front plate 20a to prevent light leakage from the lid insertion port 2c to the film surface.

When the lid 4 is inserted into the lid insertion slot 2c from the state shown in FIG. 4, the fully inserted state is pressed against the side edge of the lid 4 as shown in FIG. The second lid detecting levers 32 and 35 respectively rotate clockwise. Thereby, the restraint of the slide lever 22 is released and the film holder removal button 26 can be pressed, and the engagement between the side wall of the connection hole 22a and the step 12b of the locking claw 12 is released, and the film holder 2 is moved to the camera. The movable contact piece 36a of the leaf switch 36 is pressed by the fixed contact piece 36b, and the release on the camera body side is prevented via the connection terminal 23 and the connection pin 13.

FIG. 1 is a perspective view similar to FIG. 4 showing a panorama adapter according to an embodiment of the present invention, which can be inserted into and removed from a lid insertion opening 2c of the film holder 2 having the above-described configuration, together with the film holder 2. It is. This panorama adapter 5
The outer shape is the same as that of the above-described pull lid 4, a horizontally long opening 51 is provided in the middle in the vertical direction in the figure, cutouts 52, 52 are formed at the tips of both sides, and cutouts 53, 53 are formed to the right. Are provided.

The width of the opening 51 is approximately 13 mm, and the length thereof is larger than the length of 36 mm of the screen frame 2b so that the upper and lower portions of the screen frame 2b are shielded as shown in FIG. The left and right sides are not shielded, and the notch 52 allows the first lid detection lever 32 to rotate leftward,
The leftward movement of the slide lever 22 and the slide arm 29 is prevented to make the removal of the film holder 2 impossible, and the notch 53 allows the second lid detecting lever 35 to turn leftward, so that the release operation on the camera body side is performed. The detection canceling means is configured to enable

Further, a triangular portion 51a is formed in the opening portion 51 on the distal end side of the panoramic adapter 5, and when the panoramic adapter 5 is removed, the triangular portion 51a abuts on the free end face of the light shielding member 37 on the film holder 2 side. The interference preventing means is configured so as not to be damaged.

Here, the operation of the embodiment having the above configuration will be described. Load 35mm film and pull lid 4
Is inserted into the locking plate 11 of the camera body 1 and the upper part of the film holder 2 is pressed in the direction of the camera body 1, and the connection hole of the slide lever 22 shown in FIG. The locking claw 1 shown in FIG.
2 is inserted, the tapered portion 12a presses the side wall of the connection hole 22a, and the slide lever 22 and the slide arm 29 that moves with the slide lever 22 are pressed against the urging force of the return spring 30 as shown in FIG.
After moving to the left, the film holder 2 moves rightward until the side wall of the connection hole engages with the step portion 12b, and the film holder 2 is moved to the camera body 1.
Fixed to

In this state, when the lid 4 is pulled out and the panorama adapter 5 is inserted, in the state shown in FIG. 2 in which the lid is completely inserted, the upper and lower portions of the screen frame 2b are shielded, and only the intermediate band is exposed. Is formed.

At the same time, the first lid detecting lever 32 opposes the notch 52 to allow its left-handed rotation, and the locking portion 32a locks the slide lever 22 in the left-hand direction, and
In addition, the second lid detecting lever 35 faces the notch 53 and allows the left rotation thereof, and the leaf switch 36 is turned off, so that the camera body can be released.

When the panorama adapter 5 is not completely inserted, the left end of the opening 51 is located within the screen frame 2b as shown in FIG. In this case, the first lid detecting lever 32 is kept in the left-handed rotation state to make it impossible to remove the film holder 2, and the second lid detecting lever 35 is engaged with the side surface of the panoramic adapter 5. The camera is in the right-handed state, and the leaf switch 36 is turned on to disable the release of the camera body, thereby preventing photographing failure.

In the above embodiment, the panorama adapter 5
The opening 51 is provided with a triangular portion 51a for preventing interference with the light shielding member 37 , but the shape is not limited thereto, and the semicircular portion 51b as shown in FIGS.
Alternatively, the opening portion 51c may be used.

Further, as shown in FIG. 8C, an opening 51 'is provided above the panorama adapter 5' to shield the lower half of the screen frame 2b and perform panoramic photography on the upper half. Thereafter, the panorama adapter 5 is turned upside down and the front and back are turned so that the opening 51 'is on the lower half side, and the panoramic photographing is performed on the lower half by blocking the upper half photographed earlier. Thus, two panoramic images can be obtained and the film can be used effectively.

FIGS. 9 to 15 show another embodiment of the present invention which is applied to a camera body and a film holder different from the previous embodiment.

FIG. 12 is a front perspective view of a 35 mm film holder embodying the present invention, FIG. 13 is a perspective view showing an internal structure of the 35 mm film holder with a part of its exterior removed, and FIG. 14 is a camera body to which the film holder can be attached. It is a rear perspective view of.

The camera body 6 in this embodiment is
56x7 on brownie film of 0 or 220 size
It is a lens shutter type single-lens reflex camera that can be used by replacing a brownie film holder capable of shooting a 0 mm screen and a 35 mm film holder capable of shooting a 24 × 36 mm screen as needed. Each of the film holders can be rotated 90 degrees around the optical axis of the taking lens to freely switch the vertical and horizontal directions of the screen in one action.

On the back of the camera body 6 shown in FIG. 14, a 35 mm film holder (hereinafter referred to as "film holder") 7 having a 24.times.36 mm screen frame 7a as shown in FIGS. The lock ring 73 is turned counterclockwise by pressing the film holder 7 against the camera body 6 and moving the lock knob 72 on the film holder 7 rightward in FIG. Then, the film holder 7 is mounted on the camera body 6.

In this mounted state of the film holder, one of the rotation drive shafts 62a and 62b on the camera body 6 side is fitted to the hoisting shaft 74 on the film holder 7 side, and the operation of the winding lever 63 on the camera body 6 side is performed. As a result, the film on the film holder side is wound in parallel with the setting of the mirror and the light shielding frame on the camera body side and the setting of the lens shutter on the lens side.

In this state, the switching lever 64 is moved to the index R
In this case, the rotation drive shafts 62a and 62b are retracted, the connection with the hoisting shaft 74 on the film holder 7 side is released, and the film holder 7 can be rotated by 90 degrees, so that the screen can be switched vertically and horizontally.

At the lower left of the front surface of the film holder 7, FIG.
As shown in FIG. 3, a lid detecting lever 75 is provided by being biased clockwise by a spring 76.
5 is engaged with the operating lever 77 in the left-handed state by the urging force of the weak spring 78, and the bent portion 77a is fitted into the notch 73a of the lock ring 73 to move the lock knob 72 in the unlocking direction. Has been blocked. FIG.
Reference numeral 3 denotes a state where the lock knob 72 and the lock ring 73 are at the lock position.

Here, the lid insertion opening 7 of the film holder 7
When the lid 8 is inserted into the cover b, the lid detecting lever 75 engages with the side surface of the lid 8 and turns left against the spring 76 as shown in FIG. By turning clockwise, the bent portion 77a retracts from the notch 73a of the lock ring 73. As a result, the lock knob 72 is operated to the left in the figure, and the lock ring 73 is rotated clockwise so that the film holder 7 can be removed from the camera body 6.

When the lid 8 is in the inserted state, one of the lid detection pins 65a and 65b provided on the camera body 6 is pressed by the pin 77b of the operation lever 77, and is normally provided on the back side thereof. When the open leaf switch (not shown) is turned on, the output of the release signal of the electromagnetic release circuit is blocked, and the electromagnetic magnet is kept in an inoperative state to disable the release of the camera body 6.

FIG. 9 is a perspective view similar to FIG. 12, showing a panorama adapter according to another embodiment of the present invention, which can be inserted into and removed from the lid insertion opening 7b of the film holder 7 having the above-described structure, together with the film holder 7. FIG. The panorama adapter 9 also has the same outer shape as the lid 8, and is provided with an opening 91 having a right end opened in the middle in the vertical direction in the figure, and cutouts 92, 92 on both side edges.

The width of the opening 91 is approximately 13 mm, and the length thereof when the film 91 is mounted on the film holder 7 is to shield the top and bottom of the screen frame 7a and not to shield the left end side as shown in FIG. The notch 92 allows the lid detection lever 75 on the film holder 7 to rotate clockwise, prevents rotation of the lock ring and makes the removal of the film holder 7 impossible, and the lid detection pin on the camera body 6 side. 65a (or 65
The unlocking means is configured to allow the projection of b) and to enable the release operation.

In this embodiment, by opening the end 91a on the front end side of the opening 91 , when the panorama adapter 9 is removed, the end 91a is shielded similarly to the previous embodiment on the film holder 7 side. An interference preventing means for preventing the free end face of the member 79 (FIG. 13) from being abutted against and damaged.

This embodiment is configured as described above.
The lock knob 72 is operated while the film holder 7 is pressed against the camera body 6 with the connection hole 71 of the film holder 7 in which the 35 mm film is loaded and the lid 8 is inserted, aligned with the connection shaft 61 of the camera body 6. When the lock ring 73 is rotated counterclockwise in FIG. 9, the inner peripheral surface of the lock ring 73 is engaged with the circumferential groove 61 a of the connecting shaft 61, and the two are irremovably coupled.

In this state, when the lid 8 is pulled out and the panoramic adapter 9 is inserted, the upper and lower portions of the screen frame 7a are shielded and only the intermediate band is exposed in the fully inserted state shown in FIG. Is formed.

At the same time, one end of the lid detecting lever 75 on the film holder 7 faces the notch portion 92 to allow the right-handed rotation, and the operating lever 77 is turned leftward following the urging force of the spring 78 to be folded. The bent portion 77a fits into the notch 73a of the lock ring 73 to disable the operation of the lock knob 72, thereby preventing the film holder 7 from being removed.
The operating lever 77 is moved to the lid detecting pin 65a on the camera body 6 side.
(Or 65b) is allowed to be released to allow release.

When the panorama adapter 9 is not fully inserted, the right end thereof exposes a part of the upper and lower ends of the screen frame 7a as shown in FIG. (Or 65b) with the pin 77 of the operating lever 77
Since b is pressed to make the release impossible, no image is taken in this state. In this embodiment, when the screen is switched to the vertical position by rotating the film holder 7, the left and right sides of the screen frame 7a are shielded by the insertion of the panoramic adapter 9.

As described above, in any of the embodiments, when the pan lid is pulled out and the panorama adapter is inserted, the film holder cannot be removed from the camera body, and the panorama adapter is not sufficiently inserted, so that the panorama adapter is not inserted. In a state in which the panorama adapter is shaken or an extra exposed portion is generated, the release operation of the camera body is disabled, and the failure caused by the panorama adapter can be completely prevented.

In the above description, the method of switching the screen frame on the film holder side during panoramic shooting has been described. However, a mask indicating the panoramic screen is mounted on the finder surface, or the panorama screen is previously mounted on the finder surface. It is necessary to provide a dividing line.

[0052]

As described above, the panorama adapter according to the invention enables panoramic photography by inserting the panorama adapter instead of the lid while the film holder having the lid is attached to the camera body. By pulling out the panorama adapter, normal shooting can be performed, so that panoramic shooting can be performed at any time according to the conditions of the subject.

Therefore, if a film holder for normal photographing and a film holder for panoramic photographing are separately prepared, the film holder for normal photographing, which has a large number of photographed images, is always mounted on the camera body. In this case, it is possible to efficiently perform processing after development without replacing both screens in one film by replacing the film holder with a film holder for panoramic photography.

Then, pull the camera side to the panorama adapter.
Is provided with the detecting releasing means to disable closure sensing means and to allow without Nanito extra manipulation panoramic photography in the case of inserting the panoramic adapter, and disables the removal of the film holder in this state The risk of accidentally exposing the film surface can be eliminated.

Further, in the above-described apparatus, if means for preventing interference with the light shielding member is provided at the opening of the panorama adapter, there is a possibility that the end face of the opening abuts against the free end of the light shielding member and is damaged when the panorama adapter is pulled out. This can be eliminated and the insertion and removal of the panorama adapter can be smoothly performed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a panorama adapter according to an embodiment of the present invention together with a film holder.

FIG. 2 is a front view showing the panorama adapter inserted state of the film holder, partially cut away.

FIG. 3 is a front view similar to FIG. 2, showing a state where the panorama adapter is not yet inserted into the film holder.

FIG. 4 also shows the light-shielding lid together with a film holder.
It is a perspective view showing.

FIG. 5 is a perspective view showing the internal structure of the film holder by partially cutting out the film holder.

FIG. 6 is a rear perspective view of the camera body to which the film holder can be attached.

FIG. 7 is a front view showing a state where the lid is inserted into the film holder, with a part thereof being cut away.

FIG. 8 is an explanatory view showing another example of the panorama holder.

FIG. 9 is a perspective view showing a panorama adapter according to another embodiment of the present invention together with a film holder.

FIG. 10 is a front view showing a partially cut-out state of a panorama adapter inserted in the film holder.

FIG. 11 is a front view similar to FIG. 10, showing a state in which the panorama adapter is not yet inserted into the film holder.

FIG. 12 is a perspective view showing the light-shielding lid together with a film holder.

FIG. 13 is a perspective view showing the internal structure of the film holder with a part thereof cut away.

FIG. 14 is a rear perspective view of a camera body to which the film holder can be attached.

FIG. 15 is a front view of the film holder in a state where the lid is inserted, partially cut away.

[Explanation of symbols]

1,6 Camera body 2,7 Film holder 2b, 7a Screen frame 2c, 7b Lid insertion slot 4,8 Lid 5,9 Panorama adapter 32 First lid detection lever 35 Second lid detection lever 37 Light shielding Members 51, 91 Opening of panorama adapter 51a Triangular portion (interference prevention means) 51b Semicircular portion (interference prevention means) 52, 53, 92 Notch (detection canceling means) 65a, 65b Lid detection pin (camera body) Side) 75 Lid detection lever (film holder side) 91a Open end (interference prevention means)

Claims (2)

(57) [Scope of request for utility model registration] 1. A camera body having a film holder having an insertable / removable light-shielding lid, which allows a release operation of the camera body only when the lid is pulled out.
And a panorama adapter that can be inserted and removed in place of the lid in a film holder provided with a lid detecting means capable of being detached from the camera body only when the lid is inserted. A panorama adapter provided with an opening for shielding the upper and lower sides or the left and right sides of the screen frame to expose only the intermediate band , and a detection canceling means for invalidating the lid detecting means. 2. The method of claim 1 Symbol placement panoramic adapter, to the opening at the tip side, the interference preventing means for preventing the abutment of the light leakage preventing shielding member provided on引蓋insertion opening of the film holder provided A panoramic adapter.