JP2001159776A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such problem that the spacing between a film cartridge loading chamber and a wind-up spool chamber has had to be enlarged in order to get out of a part of film feeding reduction gear trains when a finder unit is arranged between both chambers. SOLUTION: This camera has the film feeding gear trains 7 to 19 which are arranged in the top surface part of a camera body 1, a back plate 51 which is arranged on the back side of the camera body and holds a film in a plane state and the finder unit 46 which is arranged between the film cartridge loading chamber 1a above the camera body and the film wind-up spool chamber 1b. Part 13 of the film feeding gear trains is arranged to project backward from the back plate and an eyepiece part 46d of the finder unit is arranged above the projecting part. the projecting part of the gear trains is also covered by a backward projecting part 43a covering the eyepiece part 46d of an exterior member 43.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera having a gear train for feeding a film and a finder unit.

[0002]

2. Description of the Related Art The configuration of a conventional camera is shown in FIG. The film feed reduction gear train 101 disposed on the upper surface of the camera body 100 is located on the front side of the camera body 100 and the winding spool chamber 100b formed on the camera body 100 so as not to project rearward from a back plate (not shown). It is arranged to protrude inward. The finder unit (not shown) is disposed above the camera body 100 between the film cartridge loading chamber 100a and the winding spool chamber 100b.

Further, a film feed reduction gear train is disposed on the lower surface of the camera body and at a position protruding rearward from the back plate, and the entire cover covering the camera body is moved rearward in accordance with the projecting film feed reduction gear train. The arrangement or only the projecting film feed reduction gear train is projected.

[0004]

However, the film cartridge loading chamber 100a as in the above-mentioned conventional structure is not required.
When the finder unit is to be arranged between the winding spool chamber 100b and the winding spool chamber 100b, there is a part of the film feed reduction gear train 101 arranged so as to protrude inward from the winding spool chamber 100a of the camera body 100. , The film cartridge loading chamber 1 of the camera body 100
The distance between 00a and the take-up spool chamber 100b must be increased in accordance with the finder unit, or the finder unit must be arranged upwardly away from the camera body 100. For this reason, there is a problem that the entire camera becomes large.

[0005] When the entire cover is arranged rearward,
Useless space is created between the cover and the back plate. Furthermore, if the portion that covers the film feed reduction gear train protrudes separately from the portion that covers the finder eyepiece, there is a problem in that it becomes difficult to see through the finder and the size of the camera is increased.

It is an object of the present invention to provide a camera in which a finder unit can be arranged without increasing the size of the entire camera.

[0007]

According to the present invention, there is provided a film feeding gear train disposed on an upper surface of a camera body for transmitting a film feeding driving force, and a rear surface of the camera body. A camera having a back plate that forms a film traveling space on the side and holds the film in a flat state, and a finder unit disposed between the film cartridge loading chamber and the film winding spool chamber above the camera body. A part of the feed gear train is disposed so as to protrude rearward from the back plate, and an eyepiece of the finder unit is disposed above the protruding portion, and the protruding portion is connected to the finder unit in the exterior member. As a part for covering the eye part, it is covered by a part protruding and formed rearward.

With this arrangement, a distance measuring element or the like which is integrally held by the finder unit can be arranged in front of the vicinity of the protruding portion in the film feeding gear train. Can be arranged close to the upper surface of the first member. Therefore, it is possible to arrange the finder unit between the film cartridge loading chamber and the film take-up spool chamber above the camera body while miniaturizing the camera.

Further, the eyepiece of the finder unit is arranged above the projecting portion of the gear train, and the projecting portion is formed so as to project rearward so as to cover the eyepiece of the finder unit in the exterior member (the finder). (The part where the viewing window is formed). For this reason, it is not necessary to form a part projecting backward from the camera other than the part where the viewfinder viewing window is formed on the exterior member to cover the projecting part of the gear train. Therefore, the viewfinder can be easily viewed, and the exterior member can be arranged close to the rear surface of the camera body, which is effective for reducing the overall size of the camera.

[0010]

(First Embodiment) FIGS. 1 to 11
1 shows a configuration of a camera according to the first embodiment of the present invention. FIG. 1 is an exploded perspective view showing the configuration of a film feeding mechanism and a light shielding door opening / closing mechanism, FIG. 2 is a perspective view of a film cartridge, FIG. 3 is an exploded perspective view showing the configuration of a cartridge chamber lid opening / closing mechanism, and FIG. 5 is a side view showing an operation knob, FIG. 5 is a sectional view taken along line AA of FIG. 4, FIG. 6 is an exploded perspective view showing a main unit configuration of the camera, FIG. 9 is a plan view showing a state where the film feeding mechanism is incorporated in the camera body, FIG. 9 is a plan view showing a state where the finder unit and the strobe light emitting unit are incorporated in the state of FIG. 8, and FIG. FIG. 11 is a cross-sectional view taken along the line BB of FIG.

First, the film feeding mechanism will be described. In FIGS. 1, 2 and 8, 11, a camera body 1 is provided with a film cartridge loading chamber 1a and a take-up spool chamber 1b on the left and right sides thereof.

Reference numeral 2 denotes a feed motor, which is used as a drive source for driving film winding and rewinding and for driving film feeding from the inside of the film cartridge 50 containing the film leader unit to the winding spool chamber 1b.

The feeding motor 2 is fixed to a motor base plate 5 by two screws 4. Further, a pinion gear 3 is press-fitted into the tip of the feeding motor 2.

The motor base plate 5 holds the feeding motor 2 fixed as described above, and is fixed to the upper surface of the winding spool chamber 1b of the camera body 1 by two screws 6.

Reference numerals 7 to 19 denote gears constituting a film feed gear train, which are arranged on the upper surface of the camera body 1.

Reference numeral 7 denotes a hoisting gear, in which a large gear 7a and a small gear (not shown) are integrally formed. The hoisting gear 7 is rotatably fitted and supported on a gear shaft 5 a formed on the motor base plate 5, and is held down and held by the motor base plate 5 by a hoisting gear pressing plate 8. The driving force of the feeding motor 2 is transmitted to the hoisting gear 7 by engaging the large gear 7 a with the pinion gear 3. Note that the hoisting gear pressing plate 8 is fixed to the motor ground plate 5 by screws 9.

Reference numeral 10 denotes a sun gear in which a large gear 10a and a small gear 10b are integrally formed. This sun gear 10 is arranged above the planetary gear unit 11,
It is rotatably fitted and supported on a gear shaft 1 c formed on the camera body 1, and is held down and held on the camera body 1 by a winding gear pressing plate 8. The driving force of the feeding motor 2 is transmitted to the sun gear 10 by engaging the large gear 10 a with the small gear of the hoisting gear 7.

The planetary gear unit 11 includes the sun gear 1
0, a planetary gear 1 rotatably fitted and supported on a gear shaft 1c of the camera body 1 with which the sun gear 10 is fitted.
1a. The planetary gear 11 a is pressed and held by the camera body 1 by the hoisting gear pressing plate 8.

The driving force of the feeding motor 2 is transmitted to the planetary gear unit 11 when the planetary gear 11a meshes with the small gear 10b of the sun gear 10. The planetary gear unit 11 to which the driving force is transmitted rotates clockwise about the gear shaft 1 c of the camera body 1, so that the planetary gear 11 a meshes with the gear 12 a of the hoisting spool 12.
Further, the planetary gear unit 11 rotates counterclockwise around the axis 1c of the camera body 1 so that the planetary gear 11
“a” moves to a position protruding rearward from a back plate 51 to be described later and meshes with a first rewind gear 13 to be described later.

Reference numeral 12 denotes a take-up spool, which is rotatably fitted and supported in holes 1d and 1e formed in the upper and lower end portions of the take-up spool chamber 1b of the camera body 1, and held by the camera body 1 by the motor base plate 5. I have. The hoisting spool 12 has a planetary gear 1 of a planetary gear unit 11 that rotates clockwise to a gear 12a formed at the upper end thereof.
The driving force of the feeding motor 2 is transmitted by the meshing of 1a. The take-up spool 12 to which the driving force has been transmitted rotates clockwise, and takes up the film sent from the film cartridge 50 in the take-up spool chamber 1b.

The first rewind gear 13 is rotatably fitted and supported on a gear shaft 1 f formed on the camera body 1, and is held on the camera body 1 by the motor base plate 5. The first rewind gear 13 is disposed so as to project rearward from the back plate 51 as shown in FIGS. 8 and 11. The driving force of the feed motor 2 is transmitted to the first rewind gear 13 by meshing with the planetary gear 11a of the planetary gear unit 11 that has turned counterclockwise.

Reference numeral 14 denotes a clutch gear unit.
a, 14b, and 14c, and a spring (not shown) disposed between the gears 14b and 14c. The lower end of the shaft of the clutch gear unit 14 is rotatably fitted and supported in a hole 1g formed in the camera body 1, and the upper end is rotatably fitted in a hole (not shown) formed in a finder unit 46 described later.

In the clutch gear 14, the gear 14a meshes with the sun gear 10, the gear 14b meshes with the sun gear 10, and the gear 14c meshes with the second rewind gear 15, so that the driving force of the feeding motor 2 is increased. Is transmitted.

Reference numeral 15 denotes a second rewind gear, and 16 denotes a third rewind gear.
A rewind gear 17 is a fourth rewind gear. The fourth rewind gear 17 is formed by integrally forming a large gear 17a and a small gear 17b. Second to fourth rewind gears 15 to 17
Are gear shafts 1h, 1i, 1j formed on the camera body 1.
Are rotatably fitted and supported.

Second rewind gear 15 and third rewind gear 16
Is held down and held by the camera body 1 by a finder unit 46 described later, and the fourth rewind gear 17 is held down by a gear pressing plate 27 described later.

The second rewind gear 15 is the gear 14c of the clutch gear unit 14, the third rewind gear 16 is the second rewind gear 15, and the small gear 17b of the fourth rewind gear 17
Are meshed with the third rewind gear 16, so that the driving force of the feed motor 2 is transmitted to each.

Reference numeral 18 denotes a fifth rewinding gear, which is disposed between a light-shielding door opening / closing gear 20 and a gear pressing plate 27 described later. The fifth rewinding gear 18 includes a light shielding door opening / closing gear 20.
Is rotatably fitted to and supported by a support shaft 20c formed coaxially with the center axis of rotation, and is held down and held against the light shielding door opening / closing gear 20 (that is, to the camera body 1) by a gear pressing plate 27 described later. ing. This fifth rewind gear 18
, The driving force of the feed motor 2 is transmitted by meshing with the large gear 17 a of the fourth rewind gear 17.

A fork gear 19 has a downwardly extending engaging portion 19a rotatably fitted to the inner periphery of a cylindrical rib 1k formed on the upper surface of the film cartridge loading chamber 1a of the camera body 1. And a gear holding plate 2 to be described later.
7 presses and holds the camera body 1.

The engagement portion 19a of the fork gear 19 has
It penetrates the inner periphery of the rib 1k, protrudes into the film cartridge loading chamber 1a, and engages with the spool 50a of the film cartridge 50 loaded in the film cartridge loading chamber 1a. The driving force of the feed motor 2 is transmitted to the fork gear 19 by meshing with the fifth rewind gear 18. The fork gear 19 to which the driving force has been transmitted drives the spool 50a of the film cartridge 50.

When the fork gear 19 rotates clockwise and the spool 50a is driven to rotate in the same direction, the film is taken up from the inside of the film cartridge 50 through the film inlet / outlet provided in the film cartridge 50. It is sent to the chamber 1b. Further, when the fork gear 19 rotates counterclockwise and the spool 50a is driven to rotate in the same direction, the film is wound into the film cartridge 50.

Next, the light shielding door opening / closing mechanism will be described.
1, 2 and 6, reference numeral 20 denotes a light-shielding door opening / closing gear, which opens and closes a light-shielding door 50b that opens and closes the film entrance of the film cartridge 50.

As shown in FIG. 1, the light-shielding door opening / closing gear 20 has a rotation center axis extending in a vertical direction.
Coaxially with the rotation center axis, a light-shielding door opening / closing shaft 20a extending downward and a support shaft 20c extending upward are provided. The light-shielding door opening / closing gear 20 is such that the portion immediately above the light-shielding door opening / closing shaft 20 a is the film cartridge loading chamber 1
a, and the support shaft 20c is rotatably fitted into a fitting hole 27a formed in a gear holding plate 27, which will be described later.
It is rotatably supported.

The light-shielding door opening / closing shaft 20a protrudes into the film cartridge loading chamber 1a through the hole 11 of the camera body 1, and the light-shielding door opening / closing part 50c of the film cartridge 50 loaded in the film cartridge loading chamber 1a.
Engage with.

A fifth rewind gear 18 constituting a film feed gear train is rotatably fitted on the outer periphery of the support shaft 20c. Further, a gear unit 2 is provided between the light shielding door opening / closing shaft 20a and the support shaft 20c in the light shielding door opening / closing gear 20.
0b is formed and meshes with the gear 21a of the drive ring 21. Therefore, when the drive ring 21 rotates, the light shielding door opening / closing gear 20 is rotationally driven.

The drive ring 21 is rotatably fitted and supported on the outer periphery of a cylindrical rib 1k formed on the upper surface of the film cartridge loading chamber 1a in the camera body 1, and is attached to the camera body 1 by the fork gear 19. It is held down. On the outer periphery of the drive ring 21, a gear 21a, a notch 21b, and a drive shaft 21c are formed. The gear 21a is the gear 20 of the light shielding door opening / closing gear 20.
By engaging with b, the rotational power of the drive ring 21 is transmitted to the light shielding door opening / closing gear 20. The notch 21b can be disengaged from the lock claw 22a of the lock lever 22. The drive shaft 21c is provided with a notch 34 of an opening / closing lever 34 described later.
a.

The lock lever 22 is provided with a notch 21b of the drive ring 21 for preventing the rotation of the drive ring 21.
Can be engaged. The lock lever 22 is rotatably fitted and supported on a lever shaft 1m formed on the upper surface of the film cartridge loading chamber 1a in the camera body 1, and is held down and held by the camera body 1 by a gear pressing plate 27 described later. I have.

A lock claw 22a is provided at the left end of the lock lever 22, and a drive shaft 22 is provided near the lock claw 22a.
b, a driving unit 22d is formed at the tip of an arm 22c extending downward along the film cartridge loading chamber 1a, and an SP shaft 22e is formed near the center of rotation. When the lock lever 22 rotates clockwise, the lock claw 22a enters the notch 21b of the drive ring 21 and locks the rotation of the drive ring 21. Interlocking shaft 22
b is a tapered surface 25 of a first release lever 25 described later.
c. The driving section 22d is in contact with a pressing section 26a of a second release lever 26 described later. SP axis 2
A lock lever spring 23 is hung on 2e.

The lock lever spring 23 urges the lock claw 22a of the lock lever 22 into the notch 21b of the drive ring 21 to urge the lock ring 22 to lock the drive ring 21. This lock lever spring 23
Is connected to a cartridge loading chamber 1a in the camera body 1.
And the other end is hung on the SP shaft 22e of the lock lever 22, respectively.

Reference numeral 24 denotes a discharge lever, which moves up and down in conjunction with the film cartridge 50 to discharge a fixed amount of the film cartridge 50 from the loading port of the film cartridge loading chamber 1a, and to release a first release lever 25 described later. Rotate. The discharge lever 24 is disposed above a first release lever 25 described later.

The discharge lever 24 has a discharge shaft 24 a formed in the discharge lever 24 and a hole 25 a formed in the first release lever 25 for contacting the film cartridge 50.
And a hole 24 formed on the upper surface of the film cartridge loading chamber 1a of the camera body 1 to form a hole 24b formed coaxially with the discharge shaft 24a. It is slidably supported by fitting to the fitting shaft 27b.

A tapered surface 24d is formed at the right end of the arm 24c of the discharge lever 24, and guide walls 24e are formed on both sides of the left end discharge shaft 24a. Tapered surface 24
d is in contact with the tapered surface 25b of the first release lever 25, and when the discharge lever 24 moves downward,
The first release lever 25 is rotated clockwise. The guide wall 24e is provided with a fitting shaft 27 of a gear holding plate 27 described later.
The rotation of the discharge lever 24 is prevented by abutting on a guide shaft 27c formed in the vicinity of b.

The first release lever 25 is a lock lever 2
2 is rotated to unlock the drive ring 21. The first release lever 25 is
And is rotatably fitted and supported on a discharge shaft 24 a of the discharge lever 24. This first release lever 2
5 has a tapered surface 25b at the center and a tapered surface 25c at the right end. The tapered surface 25b is in contact with the tapered surface 24d of the discharge lever 24. In addition, the tapered surface 25c is
2b, the first release lever 25 pivots clockwise to rotate the lock lever 22 counterclockwise.

Reference numeral 26 shown in FIG. 6 denotes a second release lever, which rotates the lock lever 22 to release the lock of the drive ring 21. This second release lever 26
Is slidably fitted and supported on a fitting shaft 44 a formed on the upper surface of the lens barrel unit 44, and is held by the camera body 1 and the finder unit 46.

A pressing portion 26a is formed at the front of the second release lever 26, and a driving portion 26b is formed at the rear.
The pressing portion 26a is in contact with the driving portion 22e of the lock lever 22, and moves the second release lever 26 backward in conjunction with the movement of the lens barrel unit 44 in the optical axis direction. When the second release lever 26 moves rearward, the lock lever 22 rotates counterclockwise. Drive unit 26b
Is in contact with a linear guide plate 44c provided in the lens barrel unit 44 and moving in the optical axis direction.

The gear press plate 27 presses and holds the fourth rewind gear 17, the fifth rewind gear 18, and the fork gear 19, which constitute the above-mentioned reduction gear train, with respect to the camera body 1, and the light shielding door. The opening / closing gear 20 is rotatably fitted and supported. The gear holding plate 27 is configured such that the fixed claws 27d formed at two positions thereof are engaged with two fixed claws 1p formed on the upper surface portion of the film cartridge loading chamber 1a of the camera body 1, so that the camera body 1 Fixed to

A fitting hole 27a and a fitting shaft 27b are formed on the gear holding plate 27 coaxially with the rotation center axis of the light shielding door opening / closing gear 20. The fitting hole 27a rotatably fits and supports the support shaft 20c of the light shielding door opening / closing gear 20, as described above. The fitting shaft 27c supports the discharge lever 24 so as to be slidable.

Reference numeral 28 denotes a light shielding door opening / closing lever, which switches a light shielding door opening / closing SW 33 described later. The light shielding door opening / closing lever 28 is disposed on the upper surface of the gear holding plate 27 and is fixed to the light shielding door opening / closing gear 20 by screws 29. Therefore, when the light shielding door opening / closing gear 20 rotates, the light shielding door opening / closing lever 28 also rotates integrally.

The light blocking door opening / closing lever 28 has a pressing portion 2
8a and hooks 28b are formed. Pressing portion 28a
Turns ON / OFF the light shielding door opening / closing SW 33 described later. A light shielding door opening / closing spring 30 is hung on the hook 28b.

Reference numeral 30 denotes a light-shielding door opening / closing spring, which urges the light-shielding door 50b of the film cartridge 50 in the opening direction and the closing direction. This light shielding door opening / closing spring 30
Is an SP shaft 27e, one of which is formed on the gear holding plate 27.
The other is hooked on the hook 28b of the light shielding door opening / closing lever 28, respectively.

Reference numeral 31 denotes a discharge lever spring, which connects the discharge shaft 24a of the discharge lever 24 to the film cartridge loading chamber 1a.
It is biased in the direction to protrude inward. This discharge spring 31
Are fixed to the gear holding plate 27 by screws 32.

Reference numeral 33 denotes a light-shielding door opening / closing switch, which is turned on and off in conjunction with the pressing portion 28a of the light-shielding door opening / closing lever 28. The light-shielding door opening / closing SW 33 includes two contact pieces 33a, 3
3b and an insulating plate 33c arranged between these two contact pieces 33a, 33b.
It is fixed to.

Next, the cartridge chamber lid opening / closing mechanism will be described. 3 to 5, reference numeral 34 denotes an opening / closing lever, which drives the opening / closing of the cartridge chamber lid 41.
The drive ring 21 is rotated. This opening / closing lever 34 is
Film cartridge loading chamber 1a in camera body 1
Is rotatably fitted to and supported by a lever shaft 1q formed on the side surface of the camera body 1 and is held on the camera body 1 by screws 35.

At the upper end of the opening / closing lever 34, a cut-out portion 34a formed in a U-shape and bent is formed. At the substantially central portion, a cut-out portion 34b and a hook 34c are engaged. Claws 34d are formed respectively.

The notch 34 a is fitted with the drive shaft 21 c of the drive ring 21, and transmits the rotational power of the opening / closing lever 34 to the drive ring 21. The notch 34b is in contact with a drive shaft 40a of the operation knob 40 described later. An opening / closing lever spring 39 described later is hooked on the hook 34c. The locking claw 34d is attached to the cartridge chamber lid 4
Lock 1

Reference numeral 36 denotes an opening / closing lever spring. A pressing portion 36a formed at the tip of the spring is disposed in a cutout portion 34a of the opening / closing lever 34.
Pressing c rotates the drive ring 21.

The opening / closing lever spring 36 is fixed to the opening / closing lever 34 by a pin 37, and rotates integrally with the opening / closing lever 34.

Reference numeral 38 denotes a locking lever, which is an opening / closing lever 34.
Of the locking claw 41 of the cartridge chamber lid 41
This is for maintaining the state in which the lock of a is released.
The locking lever 38 is fixed to the opening / closing lever 34 and rotates integrally with the opening / closing lever 34. A locking claw 38b is formed at the tip of the arm 38a of the locking lever 38, and engages with the locking claw 1r formed on the side surface of the film cartridge loading chamber 1a.

Reference numeral 39 denotes an opening / closing lever spring, which urges the locking claw 34d of the opening / closing lever 34 in the direction of locking the locking claw 41a of the cartridge chamber cover 41 and in the opening direction of the light shielding door 50a of the film cartridge 50. I have. The opening / closing lever spring 39 has one end formed on a side surface of the cartridge loading chamber 1 a of the camera body 1.
The other end is hooked on the hook 34c of the opening / closing lever 34, respectively.

An operation knob 40 has an operation section 40a operated by the photographer. When the photographer operates the operation knob 40 when opening and closing the cartridge chamber lid 41, the opening / closing lever 34 is rotated. The operation knob 40 is connected to the camera body 1
Formed on the side surface of the cartridge loading chamber 1a.
It is rotatably fitted and supported on a strap shaft 1u having a strap hole 1t, and is held on the camera body 1 by covers 42 and 43 as shown in FIGS.
A drive shaft 40b is formed at a position of the operation knob 40 facing the operation unit 40a, and a rotation restricting groove 40c is formed near the drive shaft 40b. Drive shaft 40
“b” is disposed in the cutout portion 34b of the opening / closing lever 34. The drive shaft 40b is connected to the end face 34e of the opening / closing lever 34.
, The turning power of the operation knob 40 is transmitted to the opening / closing lever 34.

The rotation restricting groove 40c is provided in the camera body 1
Rotation restricting shaft 1v formed near the strap shaft 1u
Is fitted.

A cartridge chamber cover 44 is disposed below the film cartridge loading chamber 1a in the camera body 1 so as to be openable and closable. This cartridge chamber lid 44
Holds the film cartridge 50 loaded in the film cartridge loading chamber 1a in the closed state, and covers a loading opening formed in the film cartridge loading chamber 1a.

The cartridge chamber lid 41 has rotatable shafts 41b formed on both sides of the cartridge chamber lid 41 rotatably supported by grooves (not shown) formed in the camera body 1, and covers the camera by covers 42 and 43. It is held by the main body 1.

Rotation shaft 41 in cartridge chamber lid 41
b, a locking claw 41a is provided at a position opposed to the locking claw 41a.
A convex portion 41c is formed at a position opposing a. The locking claw 41a is a locking claw 34d of the opening / closing lever 34.
Is locked. The projection 41c releases the locking of the locking lever 38 by the locking claw 1r of the camera body 1.

Next, the main unit configuration of the camera will be described. 6 to 11, the lens barrel unit 44 is configured to be able to expand and contract to at least three positions of a photographing position, a first non-photographing position, and a second non-photographing position. Are fixed by four screws 45.

The lens barrel unit 44 opens and closes the barrier device 44b disposed in the lens barrel unit 44 in the first non-photographing position. Further, at the second non-photographing position, the lens barrel unit 44 is further retracted than the first non-photographing position, and the second release lever 26 disposed on the upper surface of the lens barrel unit 44 is moved in the optical axis direction. .

Reference numeral 48 denotes a strobe light emitting unit which is movable with respect to the camera body 1 between a light emitting position (pop-up position) and a storage position. The strobe light emitting unit 48 is disposed on the upper surface of the winding spool chamber 1b of the camera body 1 and is fixed to the camera body 1 by three screws 49.

The finder unit 46 includes a finder optical system 46a, and a light projecting unit 46b and a light receiving unit 46c including distance measuring elements held on both left and right sides of the finder optical system 46a.

The finder unit 46 is provided in the film cartridge loading chamber 1 on the upper surface of the camera body 1.
a and is disposed between the take-up spool chamber 1b and fixed to the camera body 1 by three screws 47.

Here, as shown in FIG. 11, the eyepiece 46d of the finder optical system 46a and the first rewind gear 13 arranged so as to protrude rearward from the back plate 51 when revolving counterclockwise. It is arranged above a planetary gear 11a (not shown in FIG. 11) that projects rearward from the back plate 51. Note that the front-rear position of the rear end surface of the rear protruding portion of the camera body 1 surrounding the rear side of the first rewind gear 13 and the rear end surface (rear end surface of the eyepiece) of the eyepiece 46d are substantially the same.

Reference numerals 42 and 43 denote covers (exterior members) which cover the camera body 1. Of the covers 42, 43, the cover 43 that covers the rear side of the camera body 1 is formed with a protruding portion 43a as shown in FIGS. The protruding portion 43a protrudes rearward along the eyepiece 46d of the finder optical system 46a of the finder unit 46, and the protruding portion is provided on the camera body 1 surrounding the rear side of the first rewind gear 13. The rear projection and the rear end face of the eyepiece 46d are collectively covered. A window through which the eyepiece 46d is viewed is formed in the protruding portion. In addition, a rear portion of the cover 43 other than the protruding portion 43 a is disposed close to the rear plate 51.

Further, as shown in FIG. 9, the light projecting portion 46b of the finder unit 46 is located near the winding spool chamber 1b of the camera body 1, and includes the sun gear 10, the planetary gear unit 11, and the clutch gear unit 14. It is arranged in front (that is, in front of the arrangement of the planetary gear 11a and the first rewind gear 13 in the film feeding gear train). Also, the light receiving section 46c of the finder unit 46
Is a film cartridge loading chamber 1 as shown in FIG.
It is located near “a” and in front of the fourth rewind gear 17.

As shown in FIG. 11, the rear plate 51 has a function of forming a film running space FS in which the film runs between the camera body 1 and the camera body 1 and holding the film in a flat state. The rear plate 51 is disposed on the back side of the camera body 1 and is provided with six screws 52.
It is fixed to.

As described above, in the present embodiment, the first rewind gear 13 and the planetary gear 11a of the planetary gear unit 11 revolving counterclockwise are arranged so as to protrude rearward from the back plate 51. And these gears 1
The eyepiece 46d of the finder unit 46 is arranged above the gears 3 and 11a close to these gears. Then, as a result of moving the arrangement positions of the first rewind gear 13 and the planetary gear 11a backward from the conventional position, the first rewind gear 13 and the planetary gear 1 in the film feeding gear train are changed.
The light projecting portion 46b of the finder unit 46 is arranged in a space vacant in front of the peripheral portion of 1a.

As a result, the distance between the film cartridge loading chamber 1a and the take-up spool chamber 1b of the camera body 1 is not increased, and the finder unit 46 is not disposed upwardly away from the camera body 1; Viewfinder unit 4 without increasing the size of the camera
6 can be arranged.

Further, the eyepiece 46d of the finder optical system 46a is arranged above the planetary gear 11a of the planetary gear unit 11 and the first rewind gear 13 which are arranged to protrude rearward from the back plate 51, so that the eyepiece 46d is normally The planetary gear 11a is formed by the protrusion 43a of the cover 43 formed to cover the eye 46d.
And the first rewind gear 13, so that the cover can be easily viewed through the finder as compared to a case where the cover is provided with a portion that projects rearward and covers the gear other than the portion that covers the finder eyepiece. Thus, the size of the camera can be reduced.

In this embodiment, the gear (the first rewind gear 1) for transmitting the motor driving force to the film cartridge is used.
3) and the case where the gear (the planetary gear 11a) for switching and transmitting the motor driving force to the film cartridge side and the winding spool side is made to protrude rearward from the back plate, similarly, the motor driving force is transmitted to the winding spool. Gear (for example, the hoisting gear 7) may protrude rearward of the back plate.

[0077]

As described above, according to the present invention,
First, since a part of the film feed gear train arranged on the upper surface of the camera body is arranged so as to protrude rearward from the back plate, a part of the film feed gear train in the vicinity of the above-mentioned protruding portion is provided. A distance measuring element or the like integrally held by the finder unit can be arranged on the front side, and the finder unit can be arranged close to the upper surface of the camera body. Therefore, the viewfinder unit can be arranged above the camera body between the film cartridge loading chamber and the film winding spool chamber while miniaturizing the camera.

Further, in the present invention, the eyepiece of the finder unit is disposed above the projecting portion of the gear train, and the projecting portion is formed so as to project rearward so as to cover the viewfinder unit eyepiece of the exterior member. (The part where the viewfinder viewing window is formed) is collectively covered, so a part that protrudes to the rear of the camera other than the part where the viewfinder viewing window is formed on the exterior member, and the protruding part of the gear train Need not be covered. Therefore, the viewfinder can be easily viewed, and the exterior member can be arranged close to the rear surface of the camera body, so that the overall size of the camera can be reduced.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a configuration of a film feeding mechanism and a light shielding door opening / closing mechanism of a camera according to an embodiment of the present invention.

FIG. 2 is a perspective view of a film cartridge loaded in the camera.

FIG. 3 is an exploded perspective view showing a configuration of a film cartridge chamber lid opening / closing mechanism in the camera.

FIG. 4 is a side view showing an operation knob provided on the camera.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

FIG. 6 is an exploded perspective view showing a main unit configuration of the camera.

FIG. 7 is an exploded perspective view showing a state in which a back plate is incorporated in the main body of the camera.

FIG. 8 is a plan view showing a state in which a film feeding mechanism is incorporated in the main body of the camera.

FIG. 9 is a plan view showing a state where a finder unit and a strobe light emitting unit are incorporated in the camera.

FIG. 10 is a perspective view seen from the back showing a state where a cover is incorporated in the main body of the camera.

FIG. 11 is a sectional view taken along line BB of FIG. 9;

FIG. 12 is a plan view showing a film feed reduction gear train of a conventional camera.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Camera body 1a ... Film cartridge loading chamber 1b ... Winding spool chamber 11 ... Planetary gear unit 11a ... Planetary gear 13 ... 1st rewind gear 46 ... Finder unit 46a ··· Finder optical system 46b ··· Projector 46c · · · Receiver 46d · · · Eyepiece 51 · · · Back plate FS · Film travel space

Claims (5)

[Claims] 1. A film feeding gear train disposed on an upper surface of a camera body for transmitting a film feeding driving force, and a film running space is formed on a rear side of the camera body and the film is held in a flat state. In a camera having a back plate and a finder unit disposed between a film cartridge loading chamber and a film winding spool chamber above a camera body, a part of the film feed gear train protrudes rearward from the back plate. And the eyepiece of the finder unit is arranged above the projecting portion, and the projecting portion is formed as a portion of the exterior member that covers the eyepiece of the finder unit and is formed to project rearward. A camera characterized by being covered by: 2. The camera according to claim 1, wherein the projecting portion is a gear for transmitting a motor driving force to a film cartridge. 3. The camera according to claim 1, wherein the projecting portion is a gear that transmits a motor driving force to a film winding spool. 4. The camera according to claim 1, wherein the projecting portion is a gear for switching a transmission destination of a motor driving force to one of a film cartridge side and a film winding spool side. 5. The finder unit integrally holds a finder optical system and a distance measuring element. The distance measuring element is provided in front of a range near the protruding portion in the film feeding gear train. The camera according to any one of claims 1 to 4, wherein is arranged.