JP3287736B2 - Photographing device and image recording device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographing apparatus for photographing and recording an image of a subject on a long film, for example, and an image recording apparatus in which the photographing apparatus is applied to an image recording section.
In particular, it relates to the structure of shutter means for opening and closing an optical path toward a photographic lens.

[0002]

2. Description of the Related Art Conventionally, a rotary camera is known as a typical example of a photographing apparatus for photographing and recording an image of a subject on a long film.

Some film loading sections of the rotary type camera are fixed and incorporated in the apparatus main body. However, operability at the time of film setting, good handling after photographing, type of subject to be photographed, photographing reduction ratio, etc. In order to facilitate the transfer (recording) to a large number of films in accordance with the difference between the camera and the like, the film loading section is a unit (hereinafter, referred to as a camera unit) detachable from the main body of the apparatus together with the photographing lens. There are also devices.

FIG. 4 shows a schematic configuration of a rotary camera as a conventional photographing apparatus.

[0005] In FIG. 4, a sheet-like subject S placed on a mounting plate 113 of a paper feeding unit 112 of a photographing apparatus main body 111 is shown.
Are separated one by one by a feed roller 114 and a separation roller 115 and fed. The fed subject S passes through an upstream transport section formed by the first rollers 116 and 117 and the second rollers 119 and 119a, the tension roller 118, and the transport belt 120, and then the third roller 12
3, 123a, discharge roller 125, tension roller 1
The sheet is conveyed to a downstream conveyance section formed by the conveyance belt 24 and the conveyance belt 126, and is discharged from the discharge section 127. The objects S discharged from the discharge unit 127 are sequentially output to the discharge tray 1
28.

On the other hand, between the upstream transport section and the downstream transport section, a photographing section 121 composed of guide glasses 122 parallel to the transport direction of the subject S is provided. Behind the photographing unit 121, a pair of illumination lamps 129 for illuminating the subject S, a photographing optical path constituted by a plurality of mirrors including a C-shaped mirror (not shown), and a pair of slit plates 130 for regulating the photographing optical path are provided. It is arranged.

Further, a photographing lens 147, a shutter device 148 as shutter means,
A camera unit 140 having a film F transfer mechanism described later is provided, and an image (image information) of the subject S passing through the photographing unit 121 is transferred to the camera unit 140.
The slit exposure is performed on the film F inside.

The camera unit 140 has a first shaft 141 serving as a film mounting means as a film F transfer mechanism.
And a take-up reel 144 mounted on the second shaft 143, a guide roller 145 serving as a film transfer unit, and a capstan roller 146 for driving the film F. The capstan roller 146 has a rotation detecting means (not shown), and can detect the amount of transfer of the film F by detecting the amount of rotation.

The camera unit 140 is detachable from the main body 111 of the photographing apparatus.
The transport of the film in the recording medium 40 is performed by driving from the photographing apparatus main body 111.

Reference numeral 149 denotes a drive connection portion with a shutter device 148 such as a gear provided in a part of the camera unit 140, and 131 denotes a camera drive to the camera unit 140 provided on the photographing apparatus main body 111 side. It is a transmission unit.

The drive connecting portion 149 of the camera unit 140
The transport mechanism of the film F can be rotated 180 ° around the center (optical axis) of the optical system including the film exposure unit on the photographing lens 147 and the capstan roller 146, and can be mounted in reverse.

For this reason, when performing duo photography, the camera unit 140 is mounted to the photographing apparatus main body 111 in a normal direction, and when photography and recording on one side (for example, the A channel side) of the film F is completed, the camera unit 140 Supply side,
Instead of replacing the reels 142 and 144 on the take-up side and reloading the film F, the camera unit 140 is once attached / detached and then reversibly mounted to take up with the supply side. Since the side is replaced, the film F
Can be recorded on the other side (for example, the B channel side).

FIG. 5 shows a conventional camera unit 140.
1 shows a configuration of the shutter device 148 of FIG.

A shutter member 101 is rotatable about a support shaft 102, and 103 is a return spring of the shutter member 101. The shutter member 101 is always rotated counterclockwise about the support shaft 102 in the drawing. It is energizing. This support shaft 10
The two parts constitute a driving unit 109 of the shutter member 101.

In the free state, the shutter member 101 is rotated counterclockwise around the support shaft 102 by the tensile force of the return spring 103 until it comes into contact with the stopper 104, and is held at the position shown by the solid line in FIG. Exposure slit Sl of slit plate 105 provided between film F
And is kept closed.

Reference numeral 106 denotes a driving unit 1 of the shutter member 101.
09 is a solenoid for driving the solenoid 09, and the tip of the movable plunger 107 of the solenoid 106 and the shutter member 101 are connected by a pin 108.

The solenoid 10 is operated in response to a subject detection signal or the like.
6 is energized, the plunger 107 is returned to the return spring 1.
03, and the shutter member 1 is interlocked therewith.
01 rotates clockwise about the support shaft 102 as shown by a two-dot chain line in the figure, escapes from the position of the exposure slit Sl of the slit plate 105, the exposure slit Sl is opened, and the shutter device 148 is in the open state. Becomes

[0018]

However, since the camera unit 140 of the conventional photographing apparatus includes the solenoid 106 as shutter driving means for driving the driving section 109 of the shutter member 101, This is one of the major factors that hinder the compactness of the camera unit 140.

Further, an electric connection means for supplying power to the solenoid 106 in the camera unit 140 is required, and there is a problem that the structure of the apparatus becomes complicated.

Further, in the case where the camera unit 140 is rotated by 180 ° about the optical axis of the photographing lens 147 as in the above-described conventional example, and the camera unit 140 is turned upside down to perform the duo photographing, the shutter member 101 in the camera unit 140 is used. The opening / closing direction by rotation is forward rotation mounting (when shooting film A on film F) and reverse mounting (when shooting B channel on film F).
Therefore, there is a problem that a difference in density occurs at the front end or the rear end of the subject image photographed and recorded on the film F due to the difference in the exposure condition.

The present invention has been made to solve the above-mentioned problems of the prior art.
When the camera unit is mounted in normal rotation and when mounted in reverse, the opening and closing directions of the shutter means are the same with respect to the transport direction of the film, and shooting and recording can be performed under the same exposure condition,
It is another object of the present invention to provide a compact camera unit photographing apparatus and image recording apparatus having a simple structure.

[0022]

In order to achieve the above object, according to the present invention, there is provided a film reel mounting means, a film transport means for transporting a film from the film reel, and a method for transferring an image on the film. A photographing lens for photographing, a shutter member having a shutter member for opening and closing an optical path toward the photographing lens, a driving unit for driving the shutter member, and a shutter driving unit for driving the driving unit; A photographing apparatus having a camera unit which is detachable from the apparatus main body and which can be mounted forward and reverse around the optical axis of the photographing lens, wherein the shutter driving means is set to the apparatus main body side and driven by the shutter driving means The drive unit of the shutter member is arranged on the camera unit side, and the drive unit is positioned at a position symmetrical with respect to the optical axis of the photographing lens. Characterized in that it is provided, respectively.

Then, the photographing device having the above configuration is used for the image recording section of the image recording device.

[0024]

In the photographing apparatus having the above structure, since the shutter driving means is not built in the camera unit, the structure becomes simple and the apparatus becomes compact. Further, by providing a drive unit of the shutter member on the camera unit side corresponding to the shutter drive unit on the apparatus main body at a position symmetrical with respect to the optical axis of the photographing lens, when the camera unit is mounted forward and reversely, it is mounted. At the same time, the shutter driver can make the shutter member open and close directions with respect to the film transport direction in the corresponding drive unit.

[0025] With this arrangement, when the camera unit is mounted in the normal rotation and when the camera unit is mounted in the inverted state, the photographing and recording can be performed under the same exposure condition.

The use of the above-mentioned photographing apparatus in the image recording section of the image recording apparatus simplifies the structure of the image recording section and makes the image recording section compact, so that the overall size of the image recording apparatus can be reduced. Further, when the camera unit is mounted in the normal rotation / reversal mounting, the image of the subject can be recorded on the film under the same exposure condition.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in FIGS.

FIG. 1 is a perspective view of a mounting connection portion between the photographing apparatus main body and the camera unit.

In the figure, an opening / closing lid (not shown) having a light shielding property is provided on the camera unit 40 so as to be freely opened and closed.
A first reel 42 and a second reel 44 are respectively mounted on a first reel shaft 41 and a second reel shaft 43 which constitute film reel mounting means provided therein, and a film is provided between the two reel shafts 41 and 43. A guide roller 45, a capstan roller 46,
In addition, a photographing lens (hereinafter, simply referred to as a lens) 47 is disposed in front of the film exposure unit E on the capstan roller 46.

The same reel gears 50 and 51 are provided on the first reel shaft 41 and the second reel shaft 43, and a capstan gear 52 is provided on the roller shaft of the capstan roller 46, with a portion thereof overlapping the reel gears 50 and 51. The reel gears 50 and 51 and the capstan gear 52 are respectively connected so as to be wrapped.
494 and 492,493 are engaged.

On the other hand, when the camera unit 40 is mounted, the gears 5 which mesh with the connecting gears 491, 494, 493 on the camera unit 40 side are provided on the photographing apparatus main body 11 side.
3, 54, 55, and these gears 53, 54, 5
5, gears 56, 57, and 58 that mesh with each other are provided.

The gears 56, 57, 58 are integrally provided with encoders 59, 60, 61, respectively, and photointerrupters 62, 63, 64 are arranged facing the encoders 59, 60, 61, respectively. ing. The gears 56 and 57 are connected to friction mechanisms 65 and 66 for applying a constant rotational resistance.

The gear 58 is fixed to a shaft 67 provided with a gear 68, and the gear 68 meshes with a gear 70 fixed to a rotation shaft 69 of the gear 57. A pulley 72 is provided on the shaft 67 via an electromagnetic clutch 71, and the pulley 72 is operatively connected to a pulley 74 fixed to a drive shaft 75 by a belt 73.

In the above configuration, when the drive shaft 75 is rotated in the direction indicated by an arrow by a drive source (not shown) provided on the photographing apparatus main body 11 side, a pulley connected to the armature portion of the electromagnetic clutch 71 by the pulley 74 and the belt 73. 72 rotates.

Further, when the electromagnetic clutch 71 is turned on, the armature portion is attracted, the rotation of the pulley 72 is transmitted to the shaft 67, and the rotation of the gear 58 fixed to the shaft 67 is transmitted to the camera via the gears 55 and 493. The power is transmitted to the capstan gear 52 in the unit 40 and the capstan roller 4
6 rotates in the direction shown by the arrow (counterclockwise).

On the other hand, a gear 68 similarly fixed to the shaft 67
The rotation of the gear 70 is transmitted to the gear 57 via the friction mechanism 66, and further transmitted to the reel gear 51 in the camera unit 40 via the gears 54 and 494. The second reel 44 mounted and supported by 43 rotates and winds the film F.

The capstan roller 46 and the second reel 44
When the film F is transported by the rotation of the first reel 4
2 rotates in the direction of the arrow shown in the figure, the rotation of the reel gear 50 fixed to the first reel shaft 41 is transmitted to the gear 56 via the gears 491 and 53. Therefore, gears 56 and 5
7, friction mechanisms 65 and 66 respectively connected to
As a result, the film F in the camera unit 40 is always conveyed while maintaining an appropriate tension.

The rotation of the capstan roller 46, the first reel shaft 41, and the second reel shaft 43 is detected by the encoders 61, 59 connected to the corresponding gears 58, 56, 57 of the photographing apparatus main body 11 respectively. , 60 and the photointerrupters 64, 62, 63 can be measured indirectly by detecting the rotation of the gears 58, 56, 57.

The rotation of the gear 58 corresponding to the rotation of the capstan roller 46 is constant, and the first reel shaft 41 and the second
The rotation of the gears 56 and 57 corresponding to the rotation of the reel shaft 43 is performed by the first and first gears mounted and supported on the respective reel shafts 41 and 43.
Since it varies depending on the film winding diameter of the second reels 42 and 44, the camera unit is compared and measured by comparing and measuring the time intervals of the pulses generated from the rotation detecting means of the respective gears 56 and 57 and the changes as in the above-described conventional example. It is possible to control the transport of the film F in 40 or to detect the remaining amount.

In the above-described configuration, the same gear 492 as the gear 493 is disposed at a position symmetrical with respect to the optical axis of the lens 47 and a gear 493 that engages with the capstan gear 52 in the camera unit 40. The first and second
Similarly, the reel shafts 41 and 43, the reel gears 50 and 51, and the coupling gears 491 and 494 are arranged symmetrically with respect to the optical axis of the lens 47.

The connecting gear 491, on the camera unit 40 side
Gear 5 on the photographing apparatus main body 11 side meshing with 493, 494
3, 55, 54, the same gears 76, 78, 77 as the respective gears 53, 55, 54 via shafts 53a, 55a, 54a.
Has been fixed.

Further, a solenoid 80 (push type) as shutter driving means is provided near the optical axis on the side of the photographing apparatus main body 11 at a position substantially parallel to the optical axis.

On the camera unit 40 side, a shutter drive section 81 is provided at a position corresponding to the solenoid 80. A similar shutter drive unit 82 is provided at a position symmetrical with respect to the optical axis of the lens 47 and the shutter drive unit 81.

The camera unit 40 has an optical axis O- of a lens 47 including a film exposure portion E on the capstan roller 46.
It is possible to invert the camera by 180 ° with respect to O ′ and mount it on the photographing apparatus main body 11. At this time, the camera unit 4
The gears 494, 492, 491 on the 0 side are connected to and mesh with the gears 76, 78, 77 on the photographing apparatus main body 11 side, respectively. Further, a shutter drive unit 82 on the camera unit 40 side corresponds to a solenoid 80 as a shutter drive unit on the photographing apparatus main body 11 side.

FIG. 2 shows a configuration of a shutter device as a shutter means, and FIG. 3 shows an operation state thereof.

In the figure, a capstan roller 46 in a camera unit 40 is provided in front of a film exposure portion E on a capstan roller 46.
A slit plate 48 having an exposure slit Sl, a shutter member 83, and a lens 47 are provided. The shutter member 83 includes a shutter unit 832 that blocks the exposure slit Sl.
And the shutter operation parts 833 and 834 are bent,
It is formed integrally. Further, the shutter member 83 is rotatably provided around a support shaft 831 as a fulcrum.

The left and right front of the shutter member 83 is provided with a shutter driving shaft 8 corresponding to the shutter operating portions 833 and 834.
The guides 4 and 85 are guided by guides 811 and 821 and 90 and 91 formed integrally with the base material of the camera unit 40, and are slidably provided.

E-rings 86 and 87 are fixed to the shutter drive shafts 84 and 85, respectively.
The same compression springs 88, 89 are provided between the guide members 811 and 821.

The compression springs 88, 89 urge the shutter drive shafts 84, 85 in the direction of the arrow in FIG.
834 is pressurized. The shutter member 83 is stopped at the position shown in FIG. 2 by the right and left balance, the shutter portion 832 covers the exposure slit S1 of the slit plate 48, and the shutter device is held in a closed state.

The shutter drive unit 81 of the camera unit 40
A push-type solenoid 80 is provided on the photographing apparatus body 11 side in front of the camera. A movable pin 802 is integrally formed at the rear end of the plunger 801 of the solenoid 80, and a return coil spring 803 is interposed at the tip of the plunger 801.

When power is supplied to the solenoid 80 in accordance with a subject detection signal at the time of photographing and recording, the plunger 801 is sucked and the movable pin 802 is pushed out. In FIG.
The movable pin 802 pushes the shutter drive shaft 84 in the shutter drive unit 81 of the camera unit 40, rotates the shutter member 83 clockwise, and the shutter unit 832 escapes from the position of the exposure slit S1 of the slit plate 48, and The plate 48 is opened in the direction of the arrow in the figure, and the shutter device is in an open state.

When the solenoid 80 is turned off, the plunger 801 and the movable pin 802
3, the shutter member 83 is returned to the original position (FIG. 2) by the compression spring 89 provided on the shutter drive shaft 85 side. It is closed.

When the camera unit 40 is mounted upside down, the shutter drive unit 82 of the camera unit 40 corresponds to the solenoid 80 of the photographing apparatus main body 11, and the operation state is the same as described above.

Accordingly, in the present embodiment, even when the camera unit 40 is mounted upside down, the opening / closing direction of the shutter member 83 with respect to the transporting direction of the film F to be transported is made the same as that at the time of forward mounting. It is possible.

With this arrangement, the photographing and recording can be performed under the same exposure conditions when the camera unit 40 is mounted in the normal rotation and when the camera unit 40 is mounted in the reverse direction. , And a good recorded image can be obtained. In addition, even when this photographing device is used for an image recording unit of an image recording device, a similarly excellent recorded image can be obtained.

Further, since the solenoid 80 is not built in the camera unit 40, the structure is simplified and the camera is compact. Further, by using this photographing device for the image recording unit of the image recording device, the structure of the image recording unit is simplified,
Since the image recording apparatus is compact, the size of the entire image recording apparatus can be reduced.

In the above embodiment, the shutter drive unit using the solenoid 80 has been described as an example. However, the shutter drive unit for driving the shutter member drive unit is not limited to the solenoid. The present invention can be similarly applied to a device using a fluid pressure such as a hydraulic pressure.

[0058]

As described above, according to the present invention,
Since no shutter driving means is built in the camera unit, the camera unit can be made compact with a simple structure.

In addition, during the duo shooting recording, the opening and closing directions of the shutter member with respect to the film transport direction can be made the same between when the camera unit 40 is mounted forward and when it is mounted reversely. Thus, shooting and recording can be performed under the same exposure conditions, and a good recorded image can be obtained.

Further, by using the above-mentioned photographing apparatus for the image recording section of the image recording apparatus, the structure of the image recording section becomes simple and compact, so that the overall size of the image recording apparatus can be reduced. Further, when the camera unit is mounted in the normal rotation / reversal mounting, the image of the subject can be recorded on the film under the same exposure condition, and a good recorded image can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a mounting connection portion between a photographing device main body and a camera unit in a photographing device according to an embodiment of the present invention.

FIG. 2 is a sectional view showing a configuration of a shutter device of the camera unit in FIG. 1;

FIG. 3 is a sectional view showing an operation state of a shutter device of the camera unit in FIG. 1;

FIG. 4 is a schematic configuration diagram of a conventional photographing device.

FIG. 5 is a sectional view showing a configuration of a shutter device of the camera unit in FIG. 4;

[Explanation of symbols]

 11 Camera Unit 40 Camera Unit 41 First Reel Shaft (Film Reel Mounting Means) 42 First Reel 43 Second Reel Shaft (Film Reel Mounting Means) 44 Second Reel 45 Guide Roller (Film Transfer Means) 46 Capstan Roller ( Film transfer means) 47 Shooting lens 48 Slit plate 491,492,493,494 Connecting gear 50,51 Reel gear 52 Capstan gear 53,54,55 Gear 53a, 54a, 55a Shaft 56,57,58 Gear 59,60,61 Encoders 62, 63, 64 Photo interrupters 65, 66 Friction mechanism 67 Shaft 68 Gear 69 Rotary shaft 70 Gear 71 Electromagnetic clutch 72 Pulley 73 Belt 74 Pulley 75 Drive shaft 76, 77, 78 Gear 80 Solenoid (shutter drive means 801 Plunger 802 Movable pin 803 Coil spring 81 Shutter drive unit 82 Shutter drive unit 811,821,90,91 Guide member 83 Shutter member 831 Support shaft 832 Shutter unit 833,834 Shutter operation unit 84,85 Shutter drive shaft 86,87E Ring 88, 89 Compression spring

Claims (2)

(57) [Claims] 1. A film reel mounting means, a film transport means for transporting a film from the film reel, and a photographing lens for photographing an image on the film.
A shutter member for opening and closing an optical path toward the photographing lens; a driving unit for driving the shutter member; and shutter means having shutter driving means for driving the driving unit. A photographing apparatus having a camera unit that can be mounted forward and reverse around the optical axis of the photographing lens, wherein the shutter driving means is on the apparatus main body side, and the driving section of the shutter member is driven by the shutter driving means. Is disposed on the camera unit side, and the driving units are provided at positions symmetrical with respect to an optical axis of the photographing lens. 2. An image recording apparatus using the photographing apparatus according to claim 1 in an image recording section.