JPH0836213A - Film unit with lens - Google Patents

Abstract

PURPOSE:To easily recycle parts and to improve assemblability by allowing the sliding surfaces of a gear group to contact directly without interposing lubricant. CONSTITUTION:A motor unit is constituted of a motor 30 functioning as a driving source for winding film, the gear group 31 decelerating and transmitting the rotation of the motor 30, a holding frame 32 holding them, and a top board 33 holding the gear group 31 from above. Then, grease is not applied between bearing holes 40, 41 and 42 and gears 45, 46 and 47, between bearings 43 and 44 and gears 48 and 49, between gears 45, 46 and 47 and a hole 51 formed on the top board 33, and between the shaft 62 of a winding gear 60 and a hole 64 formed on the top board 33; and they are fitted and engaged in a state where they can contact directly. Therefore, the assemblability of the film unit with a lens is improved, and the gear group 31 is recycled as it is and assembled in the case the film unit with the lens is disassembled and assembled again.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens-equipped film unit, and more particularly to a lens-equipped film unit in which parts can be easily reused and assembly is improved.

[0002]

2. Description of the Related Art An inexpensive film unit with a lens is provided so that a user can easily obtain a camera and take a picture even if he forgets to carry the camera. This lens-equipped film unit is equipped with a simple photographing mechanism including a photographing lens and a shutter, as well as a strobe device and a film winding mechanism, and a cartridge equipped with an international standard (ISO 1007-2079 version). It has a built-in film, is small,
It has excellent portability. Users who purchase it can easily take pictures even indoors or in dark places.In addition, after the shooting is complete, the entire unit itself, without taking out the photographic film, can be handed over to the photofinishing shop. Therefore, there is an advantage that it is only necessary to request the development, and it is not necessary to perform troublesome operations such as rewinding the film and taking out the cartridge. Such a film unit with a lens stores a film cartridge and a film pulled out from the film cartridge in a roll form, and by rotating the winding knob directly connected to the spool of the film cartridge, the film cartridge is rotated every time a photograph is taken. It is configured to wind up the film that has already been taken.
And engage the perforation of the film,
Shutter charging and film winding stop are performed by the driven sprocket that makes one rotation by winding the frame and the cam that rotates coaxially with the driven sprocket, and the winding knob must be rotated for each shooting. It is configured so that the next shooting cannot be performed. For this reason, if the user forgets to wind the film after shooting, he or she may miss the photo opportunity.

In order to solve such a problem and make the photographing operation simpler, a motor is used like a general compact camera, and after shutter release,
It may be possible to automatically wind the film.

[0004]

As described above, in a camera that automatically winds a film by using a motor, it is necessary to provide a gear group for transmitting the driving force of the motor, and the film with lens is provided. The same applies to units. In such a case, in a general camera, a lubricant such as grease is applied to the sliding surface of the gear group in order to improve the durability of the gear group that feeds the film. In a film unit with a lens that does not require, when applying a lubricant such as grease to the sliding surface of the gear group that feeds the film, the assemblability deteriorates, and it is disassembled after shooting and developing. ,
While reusing as many parts as possible, when reassembling, use a lubricant such as grease on the sliding surface of the gear group,
There is a problem that it is difficult to assemble the lens-equipped film unit by reusing the gear group as it is, because it is necessary to remove it once and apply it again.

[0005]

It is an object of the present invention to provide a lens-equipped film unit having a front cover and a main body having a motor for film winding and a gear group for transmitting the driving force of the motor, and the parts can be easily reused. It is intended to provide a film unit with a lens that can be assembled and has an improved assembling property.

[0006]

The object of the present invention is achieved by a lens-fitted film unit in which the sliding surface of a gear group can be directly contacted without interposing a lubricant. In a preferred embodiment of the present invention, at least one engagement hole is formed in one of the main body portion near the gear group and the front cover, and the other engagement hole is formed in the other main body portion near the gear group and the front cover. An elastic engaging member having an engaging protrusion that can be engaged with is formed, and when the engaging protrusion engages the engaging hole, the engaging member in the vicinity of the engaging protrusion engages. It is configured to close the hole. In a further preferred aspect of the present invention, a surface of the engaging member in the vicinity of the engaging protrusion, which faces the engaging hole, faces a main body portion in the vicinity of the engaging hole and one of the engaging protrusions of the front cover. It has a shape that matches the shape of. In a further preferred aspect of the present invention, a switch knob that is provided so as to be operable from the outside and that turns the motor on and off, and a dust collecting section are provided in a main body portion below the switch knob.

[0007]

According to the present invention, in a film unit with a lens which is not required to have durability as compared with a general camera, a lubricant such as grease is applied to a sliding surface of a gear group for feeding a film. Since the sliding surface can be directly contacted without applying, it is possible to improve the assemblability of the film unit with lens, and at the time of disassembling and reassembling, the gear group The film unit with a lens can be assembled by reusing as it is, and the parts can be easily reused. According to a preferred embodiment of the present invention, when the main body portion and the front cover are joined by engaging the engaging protrusions with the engaging holes, the engaging members near the engaging protrusions are engaged. Since the holes are blocked, it is possible to prevent dust from entering the lens-equipped film unit from between the main body part near the gear group and the front cover. Even if the sliding surface of the gear group can be directly contacted without being applied to the surface, it does not hinder the function of the gear group and improves the assemblability of the film unit with lens. At the same time, when disassembling and reassembling, the gear group can be reused as it is to assemble the lens-equipped film unit, and the parts can be easily reused.

According to a further preferred aspect of the present invention, the surface of the engaging member in the vicinity of the engaging protrusion facing the engaging hole has one of the main body portion near the engaging hole and one of the engaging protrusions of the front cover. Since it has a shape that matches the shape of the surface facing to, from between the main body portion near the gear group and the front cover,
Prevent dust from entering the lens-equipped film unit.
It is possible to surely prevent it. According to a further preferred embodiment of the present invention, since a dust collecting portion is provided in the main body portion below the switch knob for turning the motor on and off, dust is removed from the switch knob portion that can be operated from the outside. It is also possible to reliably prevent the film from entering the attached film unit and adversely affecting the sliding surface of the gear group.

[0009]

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a schematic perspective view showing the external appearance of a film unit with a lens according to an embodiment of the present invention. In FIG. 1, a lens-equipped film unit 1 according to an embodiment of the present invention is configured to be capable of automatically winding a film, and as will be described later, a unit main body 2 having a photographing mechanism and the like, and a unit main body 2 It is provided with an outer case 3 for storing. A description of how to use the film unit with a lens 1 is printed on the surface of the outer case 3, and the outer case 3 has a strobe light emitting unit 4, a shutter button 5, a main switch knob 6, and a number-of-photos display plate 7. , An opening for exposing the viewfinder 8, the taking lens 9, a strobe charging switch 10 that is operated when the strobe is charged, and the light of the neon tube 11 that blinks when the strobe unit is fully charged. Openings that lead to the are respectively formed. In the vicinity of the opening that exposes the main switch knob 6 to the outside, the letters "ON" correspond to the ON position of the main switch knob 6 and "OF" correspond to the OFF position.
The letter "F" is printed. A portion of the outer case 3 below the shutter button 5 is projected to the front side corresponding to a grip portion described later. Main switch knob 6
When in the ON position, enables the motor for automatic film winding, which will be described later, while turning it OFF.
When in position, it prevents the motor from being driven.

FIG. 2 is a schematic exploded perspective view of the unit body 2 of the lens-fitted film unit 1. As shown in FIG. 2, in this embodiment, the unit body 2 includes a body portion 12, an exposure unit 13, a strobe unit 14,
The battery 15, a motor unit 16 in which a deceleration transmission mechanism and a motor are integrated, a switch 17, a front cover 18 and a rear cover 19, and a film 20 with a cartridge are detachably attached by claw engagement. It is installed. The front cover 18 has, on the optical axis 21, an opening 9a for exposing the taking lens 9 to the outside, a strobe opening 4a for exposing the strobe light emitting portion 4 of the strobe unit 14, and a viewfinder objective. Window 8a
Also, a strobe charging switch 10 for charging the strobe unit 14 and a charging confirmation hole 11a for guiding the light of the neon tube 11 to the outside are formed. Further, a grip portion 22 projecting to the front side is formed on the lower portion of the shutter button 5 of the front cover 18 so that the user can grip the grip portion 22 and take a picture. Has been done. Further, two engaging holes 18a and 18b are formed on the side portion of the grip portion 22 of the front cover 18.

In the main body portion 12, on both sides of the exposure opening 23 arranged on the optical axis 21, a cartridge storage chamber 24 for storing the cartridge 20a and a film roll 20c formed by previously winding the film 20b are formed. A film roll storage chamber 25 for storing is formed. The front surface of the outer wall of the cartridge storage chamber 24 has a shape projecting more forward than the front surface of the outer wall of the film roll storage chamber 25. An aperture (not shown) that defines the exposure range of the film 20b is formed on the back side of the body portion 12. FIG. 3 is a schematic exploded perspective view of the motor unit 16 and the switch 17 for film winding. As shown in FIG. 3, on the side of the cartridge storage chamber 24, a motor unit storage chamber 26 for storing the motor unit 16 is provided.
Are formed. The motor unit 16 is inserted into the motor unit storage chamber 26 from above or from the front and is pushed toward the cartridge storage chamber 24 side,
Engaging claws 27 projecting from the side surface of the cartridge storage chamber 24
It is adapted to be attached by engaging with a, 27b, 27c and 27d. At this time, the projection 28a and the pin 28b also formed on the side surface of the cartridge storage chamber 24 at the same time.
And are engaged with holes and grooves formed in the motor unit 16 to perform positioning. Two engaging members 26a, 26b extending forward are provided on a side portion of the motor unit storage chamber 26.
The engaging members 26a and 26b are provided with protrusions 29a and 29b which are engageable with the engaging holes 18a and 18b of the front cover 18, respectively. Engaging member 2
6a and 26b are formed of elastically deformable members, and the engaging members 26a and 26b are elastically deformed inwardly of the motor unit storage chamber 26, so that the engaging members 26a and 26b.
The protrusions 29a, 29b of the front cover 18
body portion 12 by engaging within a, 18b
And the front cover 18 are joined. Here, the protrusion 29a,
The engaging holes 18a of the engaging members 26a, 26b near 29b,
The surface facing 18b has an engaging hole 18a in the front cover 18,
It has a shape that matches the shape of the surface facing the body portion 12 near 18b. Therefore, the engaging members 26a, 2
When the protrusions 29a and 29b of 6b are engaged with the engagement holes 18a and 18b of the front cover 18, the protrusions 29a and 2b
The portions of the engaging members 26a and 26b near 9b are engaged holes 1
8a, 18b in close contact with the front cover 18 to completely close the engaging holes 18a, 18b of the front cover 18,
2 and the front cover 18 are coupled to each other so as to prevent dust from entering through the coupling portion. Motor unit storage room 2
The front portion of 6 is covered with a grip portion 22 formed on the front cover 18.

FIG. 4 is a schematic exploded perspective view of the motor unit 16. As shown in FIG. 4, the motor unit 16
Is a motor 30 as a drive source for film winding, a gear group 31 for decelerating and transmitting the rotation of the motor 30, a holding frame 32 for holding them, and a top plate 33 for holding the gear group 31 from above. It consists of Here, the motor 30 is configured not to be driven when the main switch knob 6 is located in the OFF position, and to be driven only when the main switch knob 6 is located in the ON position. Holding frame 3
A gear support portion 34 is formed on an upper portion of the motor 2, and a motor support portion 35 is formed on a lower portion thereof. A plate-shaped elastically deformable coupling portion 36 is provided between the gear support portion 34 and the motor support portion 35. Are formed. The engaging claws 27a to 27d formed in the motor unit housing chamber 26 are adapted to be engaged with the connecting portion 36. In this embodiment, as the motor 30, a low-priced motor used as a power source for a model or the like is used. The gear support 34 is formed with a hole 34a into which the rotary shaft 30a of the motor 30 can be inserted, and
The motor support portion 35 is formed with a hole 35 a having the same shape as the protrusion formed on the lower portion of the motor 30. Therefore, as shown in FIG. 4, with the holding frame 32 deformed, the rotation shaft 30a of the motor 30 is inserted into the hole 34a from below.
In addition, the head portion 37 of the motor 30 is inserted so as to enter the recess formed in the lower surface of the gear support portion 34, and the motor 30 is sandwiched by the elastic force of the coupling portion 36. Is fixed.

When the motor 30 is fixed, the rotating shaft 30a of the motor 30 inserted into the hole 34a is fixed to the gear support portion 34.
From the rotary shaft 30a protruding upward from the gear 3
8 is attached. Gears 45, 46, 47, 48, 49 are inserted into the bearing holes 40, 41, 42 and the shafts 43, 44 formed on the upper surface of the gear support portion 34. Each of these gears 45 to 49 has two spur gears formed on the upper and lower sides, and by meshing these,
It is configured to decelerate the rotation of the motor 30. Two engaging claws 5 projecting downward are provided on the top plate 33.
0 is formed, is engaged with the gear support portion 34, and is attached to the holding frame 32. At this time, the gears 45, 46, 47 and the shafts 43, 4 are provided in the five holes 51 formed in the top plate 33.
Since the upper part of 4 is inserted, the distance between the shafts of the gears 45 to 49 is maintained, and the rotation of the motor 30 can be reliably transmitted. As shown in FIGS. 3 and 4, the wall portion 5 is provided on the opposite surface of the top plate 33 on which the engaging claws 50 are formed.
2a and a dust collecting box 53 having three protrusions 52b, 52c, 52d therein are formed. In the dust collecting box 53, an operation plate 54 integrally formed with the main switch knob 6 is provided with three protrusions 52b, 52c, 52d.
It is slidable along the. Therefore, even if the dust enters the inside of the main body portion 12 from the portion of the main switch knob 6 exposed to the outside so that the user can operate the dust, the dust is prevented from entering the dust collecting box 53 by the wall portion 52a. Collected in the main switch knob 6, dust invades the portion of the gear group 31 composed of the gears 38, 45, 46, 47, 48, 49 in the vicinity of the main switch knob 6 to hinder the drive of the gear group 31 to supply the film 20b. It is prevented that the delivery is hindered. A pair of convex portions 55 is formed on both side surfaces of the operation plate 54, and the pair of convex portions 55 is selected between a concave portion 56 formed in the wall portion 52 a of the dust collection box 53 and a pair of concave portions 57. Therefore, it is formed to be engageable. When the pair of convex portions 55 and the pair of concave portions 57 are engaged, the main switch knob 6 is, as shown in FIG. 1,
Film unit with lens 1 located in the "ON" position
When the shooting operation is performed, the film is immediately wound up. Further, when the pair of convex portions 55 and the concave portion 56 are engaged, the main switch knob 6 is located in the “OFF” position, and the lens-equipped film unit 1 winds the film even if the photographing operation is performed. Is not done.

As shown in FIG. 3, a winding gear 60 is rotatably attached to the upper portion of the cartridge storage chamber 24. A bearing opening 61 is formed on the upper surface of the cartridge storage chamber 24, and a drive shaft 62 formed on the lower surface of the winding gear 60 is inserted into the bearing opening 61. A tooth row 62a that meshes with the spool 20d (see FIG. 2) of the cartridge 20a is formed at the end of the drive shaft 62, and the spool 20d is rotated by the rotation of the winding gear 60.
Is rotated, and the film 20b is put in the cartridge 20a.
Is configured to be rolled up. Winding gear 60
A shaft 63 is formed on the upper surface of the. This shaft 63
When the motor unit 16 is attached to the main body portion 12, it is inserted into the hole 64 formed in the top plate 33. The winding gear 60 is meshed with the lower gear 49a of the gear 49 of the motor unit 16 so that the axial distance between the gear 49 and the winding gear 60 is kept constant. As a result, the motor 30
Rotation is reduced to 1/100 to 1/290 and transmitted to the spool 20d. In this embodiment, the bearing hole 4
0, 41, 42 and gears 45, 46, 47, shaft 43,
44 and the gears 48 and 49, between the gears 45, 46 and 47 and the hole 51 formed in the top plate 33, and the shaft 6 of the winding gear 60.
3 and the hole 64 formed in the top plate 33,
No grease was applied and they were directly mated and mated in a contactable manner.

The gear ratio 31 of the gear group 31 is 1/1.
00 to 1/290 is determined using the following formula. Reduction ratio = required film winding torque / (motor shaft load torque x gear efficiency) ... Motor rotation speed = 8700-510 x motor shaft load torque ... 1 frame winding time = 1 frame winding time Spool rotation speed / spool rotation speed per unit time = spool rotation speed when winding one frame / (motor rotation speed x 1/60 x 1 / reduction ratio) , Determine the minimum reduction ratio. The required film winding torque is the torque required to wind the film, and the condition that requires the most torque is at low temperature (-10
The final frame was wound up at (° C) and the winding torque was measured. The required winding torque was 700 gf · cm. The above formula is obtained by measuring the relationship between the rotational speed of the inexpensive motor and the motor shaft load torque from the measured value.
In consideration of safety, the motor shaft load torque is specified to be driven at 1/2 or less of the stall torque in the above equation, and in the equation, it is 1/2 when the rotation speed of the motor is 0, which is 8.5.
gf · cm.

The gear efficiency is 0.95 ⁴ when the number of gears is 4 to 8 in consideration of the space and the loss between the gears is 5%, and when the number of gears is 5 is 0.95. 82
Became. If these required hoisting torque, motor shaft load torque and gear efficiency are substituted into the formula, the reduction ratio is 1 /
It becomes 100. When the speed reduction ratio is smaller than 1/100, the film winding time is shortened, but the motor shaft load torque is increased, and there is a possibility that stable film winding cannot be performed. Next, the maximum reduction ratio was determined using the above formula. The winding time for one frame is set to 3 seconds in consideration of the normal use condition. Before filming, the spool rotation speed at the time of winding one frame is the minimum since the film is wound on the spool of the cartridge, and the diameter is 11.5 mm. The sum of the length of one film in the longitudinal direction and the space between adjacent ones (36 mm + 2 mm)
Is divided by the circumference for this diameter, the spool rotation speed required to wind up one frame is obtained.
5π = 1.05 rotations / frame. Also, the motor shaft load torque is considered from the stable range of the rotation speed against the load,
It is set to 5 gf · cm. By substituting the one-frame winding time, the spool rotation speed and the motor shaft load torque during one-frame winding into the formula, the maximum reduction ratio becomes 1/290.

A boss 65 is formed on the upper surface of the cartridge storage chamber 24 in addition to the bearing opening 61.
The switching lever 66 is rotatably inserted.
The switching lever 66 is provided with a shaft portion 67 inserted into the boss 65 and an L-shaped arm portion 68 protruding upward. The arm portion 68 is at a position where it is pressed by the protruding portion 54a protruding from the operation plate 54 when the operation plate 54 is located at the “OFF” position,
The switching lever 66 is rotated counterclockwise in FIG. Further, the switching lever 66 is provided with an elongated hole-shaped engaging portion 69 and a protruding portion 70. A pin 72 formed on a locking lever 71 assembled to the exposure unit 13 is inserted into the engaging portion 69, and the protruding portion 70 is formed.
An engaging member 73 forming a part of the switch 17 is in contact with the. FIG. 5 is a schematic side view of the switch 17 when the shutter button 5 is operated. As shown in FIGS. 3 and 5, the switch 17 includes a resin holder 75,
Three metal contact pieces are attached so as to be insulated from each other, and the holder 75 is attached to the exposure unit 13 as described later. Of the three contact pieces, a contact portion 76a bent in an arc shape is formed at the upper end of the first contact piece 76 arranged at the center. Further, a projecting piece 76b is formed so as to project upward from the side of the first contact piece 76, and an engaging member 73 is attached to the tip end of this projecting piece 76b. ing. The engaging member 73 is made of plastic and is formed into a cylindrical shape. The engaging member 73 is pressed to the back side by the rotation of the switching lever 66, and deforms the first contact piece 76 to the back side.

A second contact piece 77 is provided on the front side of the first contact piece 76.
Is arranged. From the side of the second contact piece 77, a protruding piece 77a is formed so as to protrude downward. The lower end of the projecting piece 77a is formed in an arc shape toward the first contact piece 76 side. First
On the back side of the contact piece 76, a third contact piece 78 having an arc-shaped contact portion 78a formed at its tip is arranged. These first
As shown in FIG. 5, the motor 30 and the battery 15 are connected to the contact piece 76, the second contact piece 77, and the third contact piece 78. FIG. 6 is a schematic side view of the switch 17 when the motor is driven, and FIG. 7 is a switch 1 when the motor is stopped.
7 is a schematic side view of FIG. As shown in FIG. 6, when the contact portion 76a of the first contact piece 76 and the second contact piece 77 contact each other, the circuit is closed and the motor 30 is driven. Further, as shown in FIG. 7, the first contact piece 76 and the third contact piece 7 are
8 is contacted with the contact portion 78a of the motor 8, the motor 30
Are short-circuited and the drive of the motor 30 is stopped. FIG. 8 is a schematic exploded perspective view of the exposure unit. As shown in FIG. 8, in the base portion 85 of the exposure unit 13, an exposure opening 86 provided on the front side of the optical axis 21, two shafts 87 and 88, and a bearing opening 89 are integrally formed. There is.
A shutter drive lever 90 and a number-of-images display plate 7 are rotatably inserted into the shaft 87, and are retained by a retaining ring 91. Further, the shaft 88 has a spring 92 and a locking lever 71.
And are rotatably inserted, and are retained by screws 93. The rotating member 94 is inserted into the bearing opening 89.

A winding stop cam 94a, a shutter charge cam 94b, a shaft 94c projecting downward, and a one-tooth gear 94d projecting upward are integrally formed in the central portion of the rotating member 94. A driven sprocket 95 arranged in the base portion 85 is engaged with the shaft 94c, and the rotation of the driven sprocket 95 is transmitted. The tooth row 7a formed on the outer periphery of the number-of-photographs display plate 7 meshes with the one-tooth gear 94d. The driven sprocket 95 meshes with a perforation formed outside the photographing range of the film 20b (see FIG. 2), and the winding gear 60 rotates to rotate the patrone 2
When the spool 20d of 0a rotates and the film 20b is transferred by the length of one frame, it makes one rotation. Spring 92
Has its one end 92a engaged with the locking portion 90a of the shutter drive lever 90, and biases the shutter drive lever 90 around the shaft 87 in the counterclockwise direction in FIG. In addition, the other end 92b of the spring 92 is connected to the locking lever 7
1 is engaged with the vertical piece 71a and the locking lever 71 is attached to the shaft 8
8 is biased in the clockwise direction in FIG.
One end 90b of the shutter drive lever 90 is in contact with the shutter charge cam 94b, and the rotation of the driven sprocket 95 causes the shutter drive lever 90 to move to the spring 9.
It is rotated clockwise in FIG. 8 against the bias of 2.

A groove 94e is formed on the outer periphery of the winding stop cam 94a.
Is formed, and the claw portion 71b of the locking lever 71 is fitted into the groove 94e when the film is fed one frame and the rotating member 94 makes one rotation.
As a result, the rotation of the driven sprocket 95 is locked, and the winding of the film 20b is prevented. Further, since the claw portion 71b of the locking lever 71 fits into the groove 94e, the locking lever 71 slightly rotates clockwise in FIG. By this rotation, the protrusion 71c of the locking lever 71 causes the rising piece 90 of the shutter drive lever 90 to rise.
The shutter drive lever 90 is held in the charging position by engaging with c. It should be noted that one rotation of the driven sprocket 95 causes the one-tooth gear 94d to rotate the photographed number display plate 7 by one scale. When the locking lever 71 is rotated clockwise in FIG. 3, the pin 7 of the locking lever 71 is rotated.
2 rotates the switching lever 66 counterclockwise in FIG. As a result, the first switch 17
The engaging member 73 of the contact piece 76 is pressed toward the back side, and the first contact piece 76 is brought into contact with the third contact piece 78 as shown in FIG. 7.

When the shutter button 5 is pushed down, the locking lever 71 is slightly rotated around the shaft 88 in the counterclockwise direction in FIG. By this rotation, the protrusion 71c of the locking lever 71 is disengaged from the rising piece 90c of the shutter drive lever 90, and the shutter drive lever 9
0 is rotated counterclockwise in FIG. 8 around the shaft 87 by the urging force of the spring 92, and the kicking arm 90d of the shutter drive lever 90 kicks the shutter blade 96 described later. When the locking lever 71 is rotated counterclockwise in FIG. 3, the switching lever 6
6 is released from the pressing force of the pin 72, and the first contact piece 76 is released.
Returns to the position on the second contact piece 77 side by its own elasticity. At this time, when the shutter button 5 is not pushed down, the first contact piece 76 and the second contact piece 77 are brought into contact with each other, and the motor 30 is rotated. A shaft 97 is formed on the front surface of the base portion 85 in parallel with the optical axis 21. A crank-shaped shutter blade 96 is rotatably attached to the shaft 97. The shutter blades 96 are springs 10.
The biasing force of 3 causes the exposure opening 86 provided on the optical axis 21 to be shut off, and the shutter driving lever 90 kicks the shutter to move it between the retracted position and the retracted position.

A shutter cover 98 is attached to the front surface of the shutter blades 96, and the shutter blades 96 are attached to the optical axis 2.
It is prevented from swinging in the direction of 1. The shutter cover 98 has a diaphragm opening 98a formed on the optical axis 21, and the lens barrel 9 surrounds the diaphragm opening 98a.
8b is integrally formed. In the lens barrel 98b, the rear lens 99 and the front lens 1 which compose the taking lens 9 are provided.
00 and the spacer 101 sandwiched between them are inserted, and finally the lens cover 102 is covered. A concave holding frame 110 is integrally formed on the upper right side of the base portion 85. In the holding frame 110, the objective lens 10
4a and the eyepiece lens 104b are inserted to form an inverted Galileo type finder 8. Finder 8
As shown in FIG. 2, it is arranged between the finder objective window 8a of the front cover 18 and the finder eyepiece window 8b of the rear cover 19. As shown in FIG. 8, the base portion 85
On the left side of the three engaging pieces 111a, 111b, 11
1c is formed and engaging pieces 111a, 111b, 1
Holes are formed in each of 11c. On the other hand, the holder 75 of the switch 17 has three protrusions 75a (see FIG. 8).
In FIG. 3, the convex portion formed on the rear surface of the switch 17 is not shown. ) Are the engaging pieces 111a and 1a, respectively.
The holes formed in 11b and 111c can be snap-engaged. The switch 17 is a positioning plate 11
It is adapted to be attached to the exposure unit 13 via 2. Here, the positioning plate 112 is the switch 17
The first contact piece 76, the second contact piece 77 and the third contact piece 78 of
The switch 17 ensures that the switch 17 is attached to the exposure unit 13 so that the switch 17 is located at a predetermined position.

A film supporting surface 105 is formed on the rear cover 19 at a position facing an aperture (not shown). A finder eyepiece window 8b is formed on the upper portion of the film supporting surface 105, and framing is performed through this window during photographing. An upper plate 106 projecting forward is formed at the upper edge of the rear cover 19, and the upper plate 106 fits into a notch 107a formed in the upper plate 107 of the front cover 18. It has a shape. The upper plate 106 of the rear cover 19 and the upper plate 107 of the front cover 18
1, the opening 108 for exposing the main switch knob 6 to the outside and the number-of-photographs display plate 7 are exposed to the outside by the notches formed in the both, as shown in FIG. And a display window 109 for forming. On the bottom surface side of the rear cover 19, a pull-top type lid 19 that covers the bottom surfaces of the cartridge storage chamber 24 and the film roll chamber 25.
a and 19b are provided respectively. The lid 19a is
It is used as a take-out lid when taking out the cartridge 20a containing the film 20b. A charge confirmation window 120 for confirming whether or not the strobe unit 14 has been charged is formed near the finder eyepiece window 8b. FIG. 9 is a partially enlarged schematic exploded perspective view of the strobe unit 14.

As shown in FIGS. 2 and 9, a strobe charging contact 121 is provided behind the strobe charging switch 10 formed on the front cover 18, and the strobe charging switch 10 is operated by the user. When operated, the strobe charging contact piece 121 causes the strobe unit 1 to move.
The contact points 123 and 124 provided on the substrate 122 are short-circuited, and charging is performed by the strobe charging circuit. Furthermore, a neon tube 11 that blinks when the strobe unit 14 is charged by the strobe charging circuit, and a holding plate 125 that covers the objective lens 104a and the eyepiece 104b inserted into the holding frame 110 are provided. The holding plate 125 holds the objective lens 104a, the eyepiece lens 104b, and the cam (not shown) at predetermined positions, is made of a light guide plastic, and is the number of images to be displayed by the number-of-images display plate 7. Is provided with a lens unit 126 for enlarging and displaying. A light guide portion 127 is formed in a portion of the holding plate 127 on the side of the neon tube 11 so that the light from the neon tube 11 is reflected on the inner surface thereof and is guided to the charging confirmation window 120. 2 and 9, 128 is a capacitor. The light guide portion 127 extends linearly in the front-rear direction of the unit main body 3, and its rear end portion is fitted into the charging confirmation window 120. Further, the front end portion thereof forms a flat surface 127a that makes an angle of approximately 45 degrees with the longitudinal direction, and the light from the neon tube 11 forms an angle of approximately 45 degrees with respect to the flat surface 127a. The light is incident, reflected in the longitudinal direction of the light guide unit 127, guided to the rear end portion, and can be observed from the charge confirmation window 120.

FIG. 10 is a schematic perspective view of a shutter mechanism including the shutter button 5. As shown in FIG. 10, the shutter button 5 has a cylindrical shape, and a flange 5a and a pressing pin 5b protruding downward are formed on the lower portion thereof. On the upper plate 107 of the front cover 18, an opening 140 for a shutter button and a ridge 141 surrounding the opening 140 are formed on the lower surface.
Is inserted into the opening 140 from below.
Since 41 and the flange 5a are in contact with each other, they do not come out upward. Below the shutter button 5, a pin 14 projecting toward the back side is provided inside the front cover 18.
Intermediate lever 1 inserted into 2 and rotatably attached
43 are arranged. A pressing lever 144 protruding downward is integrally formed at a tip end portion of the intermediate lever 143, and an engaging portion 145 protruding upward is formed at an intermediate portion of the intermediate lever 143. Push lever 1
A pressing piece 144a is formed at the front end of the switch 44 toward the back side, and the pressing piece 144a abuts on the protruding piece 77a formed on the second contact piece 77 of the switch 17 described above, and a contact point is formed. The portion 77a is deformed downward and on the back side.

A lock release lever 146 is integrally formed on the front cover 18. Lock release lever 146
Is a connecting portion 1 integrated with the upper plate 107 of the front cover 18.
Elasticity is given by 46a, and the locking lever 71
A pressing portion 146b that presses the vertical piece 71a and a claw portion 146c that engages the engaging portion 145 of the intermediate lever 143 are formed. When the shutter button 5 is pushed down, the pressing pin 5b formed on the lower portion of the shutter button 5 pushes the intermediate lever 143 downward. The intermediate lever 143 pressed by the shutter button 5 is rotated clockwise about the pin 142. Thereby, the engaging portion 145
The pawl portion 146c engaged with is pushed downward, and the locking release lever 146 is pushed down around the connecting portion 146a with the front cover 18. When the lock release lever 146 is pushed down, the pressing portion 146b causes the vertical piece 7 of the lock lever 71 to move.
By pushing 1a, the locking lever 71 is slightly rotated counterclockwise in FIG. As a result, shutter release is performed by the shutter drive lever 90. While the shutter button 5 is being pushed down, the pressing lever 1
Since 44 is also moved downward, the contact between the pressing piece 144a and the protruding piece 77a of the second contact piece 77 is released, and the second contact piece 77 is separated from the first contact piece 76 by its elasticity. Return to direction. As a result, the first contact piece 76 and the second contact piece 77 do not come into contact with each other while the shutter button 5 is being pressed down, so that the film is not wound. Also, when the release of the shutter button 5 is released,
Although the pressing lever 144 moves upward, since the lower end of the protruding piece 77a of the second contact piece 77 is formed in an arc shape, the pressing lever 144 and the protruding piece 77a are in smooth contact with each other.

Below the substrate 122 of the strobe unit 14, a battery contact piece 150 that contacts the positive terminal 15a of the battery 15 and a battery contact piece 15 that contacts the negative terminal 15b.
1 and are attached. These battery contacts 150,
In addition to being connected to the strobe circuit, 151 is also connected to the motor unit 16 and the switch 17, and the battery 15 serves as a drive source for the strobe unit 14 and the motor unit 16. Here, since the motor 30 is configured to be driven by the DC power source, the rotation direction changes depending on the direction of the battery 15 to be connected. As shown in FIG. 2, when the battery 15 is properly loaded, the rotating shaft 30a of the motor 30 rotates counterclockwise in FIG. 4, but when the battery 15 is loaded in the reverse direction, the rotation shaft 30a rotates. The shaft 30a is rotated clockwise, and the cartridge 2
It becomes impossible to wind the film 20b into 0a. Therefore, in this embodiment, as shown in FIG. 2, the protruding piece 153 is provided in the portion of the main body portion 12 where the battery contact piece 150 is arranged. According to this structure, as shown in FIG. 11 which is a schematic perspective view of the battery 15 in a loaded state, the battery contact piece 150 is provided in front of the battery contact piece 150.
Since the projecting piece 153 is located, the protruding positive terminal 15a of the battery 15 can be loaded, but the negative side terminal 15b.
Is loaded on the side of the battery contact piece 150, the positive terminal 1
Since 5a cannot be loaded, it is possible to reliably prevent the battery 15 from being loaded by mistake.

The lens-fitted film unit 1 according to the embodiment of the present invention configured as described above operates as follows. The lens-fitted film unit 1 is made into a unit body 2 by manufacturing each part by plastic molding and assembling them. When the battery 15 is loaded into the unit main body 2, as shown in FIG. 11, since the projecting piece 153 formed on the main body portion 12 is located in the vicinity of the battery contact piece 150, the battery contact piece 150 side. Only the positive contact 15a of the battery 15 can be loaded in the battery 1. Therefore, erroneous loading of the battery 15 can be reliably prevented, and the battery 1
5 can be loaded. After undergoing various inspections, the unit body 2 in which the battery 15 is loaded is covered with the outer case 3 on the outer side thereof, and the film unit with lens 1
Becomes The film unit with a lens 1 completed as shown in FIG. 1 is stored in a moisture-proof bag (not shown) that shields light and moisture, and is sold. In order to prevent the film from being unnecessarily consumed by pressing 5 to release the shutter, the main switch knob 6 is set to the “OFF” position, and the shutter button 5 is pressed to perform shutter release. It is stored in a moisture-proof bag.

FIG. 12 is a schematic top view when the switch 17 is OFF. In this state, as shown in FIG. 12, the protruding portion 54a provided on the operation plate 54 presses the arm portion 68 of the switching lever 66, so that the switching lever 66 is rotated counterclockwise. The rotated switching lever 66 is moved to the first position by the protrusion 70.
The engaging member 73 attached to the tip of the protruding piece 76b of the contact piece 76 is pushed to the back side. As a result, as shown in FIG. 7, the first contact piece 76 is deformed to the back side and abuts on the contact portion 78a of the third contact piece 78, so that the driving of the motor 30 is prevented. A user who has purchased the lens-equipped film unit 1 takes out the lens-equipped film unit 1 from the moisture-proof bag and slides the main switch knob 6 to the “ON” position in accordance with the description on the moisture-proof bag or the outer case 3. As a result, the pressure applied to the switching lever 66 from the operation plate 54 is released, and the first contact piece 76 separates from the third contact piece 78 by its elasticity and returns to the original position. Further, as shown in FIG. 6, at this time, the second contact piece 77 is pressed by the pressing piece 144 a formed on the pressing lever 144, so that the first contact piece 76 is pressed.
Since it is deformed to the side of the contact point 76 of the first contact piece 76
a and the second contact piece 77 are brought into contact with each other, the motor 3
0 is rotated.

The rotary shaft 30a of the motor 30 is rotated counterclockwise in FIG. 4, and this rotation is reduced by the gear group 31 to 1/100 to 1/290. As shown in FIG. 3, the decelerated rotation of the motor 30 is transmitted to the winding gear 60 by the lower gear 49a of the gear 49, and the winding gear 60 is rotated counterclockwise in FIG. As shown in FIG. 2, the spool 20d of the cartridge 20a meshed with the tooth row 62a of the drive shaft 62 is also rotated counterclockwise by the rotation of the winding gear 60. By rotating the spool 20d, the film 20b
Is wound up in the cartridge 20a. At this time, the driven sprocket 95 shown in FIG. 8 is rotated counterclockwise due to the meshing with the perforation of the film 20b. By rotation of the driven sprocket 95,
Rotating member 94 attached to driven sprocket 95
Are rotated in the same direction. Due to the rotation of the rotating member 94, the shutter drive lever 90, whose one end 90b is in contact with the shutter charge cam 94b, is rotated clockwise against the bias of the spring 92 and moved to the charge position. When the film 20b is wound up one frame, the rotating member 94 also makes one rotation, and the claw portion 71b of the locking lever 71 enters the groove 94e of the winding stop cam 94a, and the driven sprocket 95 is moved.
Lock the rotation of. Also, the groove 94e and the claw portion 71b
The engagement lever 71 is slightly rotated clockwise by the engagement with the protrusion 71c and the rising piece 90c.
And are engaged and shutter charging is performed.

At the same time, when the locking lever 71 rotates, the engaging portion 69 is pushed by the pin 72 of the locking lever 71 shown in FIG. 3, and the switching lever 66 rotates counterclockwise. It This switching lever 66
The rotation of the projection 70 presses the engaging member 73 of the first contact piece 76 toward the back side, deforms the first contact piece 76, and as shown in FIG. To contact the contact portion 78a of. As a result, the motor 30 is short-circuited, the rotation of the motor 30 is immediately stopped, and the preparation for photographing is completed. The user looks into the viewfinder eyepiece window 8b (see FIG. 2) formed on the rear cover 19 to check the subject and determine the framing, and then depresses the shutter button 5. When the shutter button 5 is pushed down, FIG.
As shown in FIG. 5, the pressing pin 5b formed on the lower portion of the shutter button 5 pushes the intermediate lever 143 downward. The intermediate lever 143 is rotated clockwise around the pin 142 formed on the front cover 18, and the engaging portion 14 is rotated.
The claw portion 146c engaged with 5 is pushed down. Claw 146
The lock release lever 146 in which c is pushed down is pushed down with the connection portion 146a with the front cover 18 as a fulcrum,
The pressing portion 146b pushes the vertical piece 71a of the locking lever 71 to rotate the locking lever 71 slightly counterclockwise.

As shown in FIG. 8, the locking lever 71
However, when it is rotated counterclockwise, the protrusion 71c of the locking lever 71 and the rising piece 90 of the shutter drive lever 90 are rotated.
The engagement with c is released, and the shutter drive lever 90 is rotated counterclockwise by the biasing force of the spring 92. At this time, the kicking-off arm 90d kicks the shutter blades 96, rotates the shutter blades 96, and opens the photographing opening 86. As a result, the subject light that has passed through the taking lens 9 reaches the film 20b, and the film 20b is exposed. Since the motor 30 is immediately stopped by the brake when the film is wound up one frame,
The film 20b is not pulled, and the blurring of the film does not occur during shutter release. At the same time, as shown in FIG. 3, the rotation of the locking lever 71 releases the pressing of the pin 72 against the switching lever 66 in the counterclockwise direction. As a result, the first contact piece 76 returns to its original shape due to its elasticity, and thus moves to the second contact piece 77 side. However, FIG.
As shown in FIG. 2, while the shutter button 5 is pressed down, the pressing piece 144a of the pressing lever 144 and the protruding piece 77a of the second contact piece 77 are not in contact with each other, so
The contact piece 77 is displaced in the direction away from the first contact piece 76 by its own elasticity, the contact portion 76a of the first contact piece 76 and the second contact piece 77 are not contacted, and the motor 30 is not rotated. .

After that, when the depression of the shutter button 5 is released, the second contact piece 77 is again pressed to the first contact piece 76 side by the pressing piece 144a of the pressing lever 144, so that it is shown in FIG. As described above, the contact portion 76 of the first contact piece 76
The a and the second contact piece 77 are brought into contact with each other. As a result, the motor 30 is rotated, and the film is wound by the rotation of the motor 30, and the shutter charge and the film winding are stopped. On the other hand, when using the strobe unit 14 for stroboscopic photography, first, the strobe charging switch 1
0 is operated. As a result, the strobe charging switch 10
The stroboscopic charging contact piece 121 provided behind the strobe is brought into contact with the substrate 122 of the strobe unit 14,
The upper contacts 123, 124 are short-circuited to charge the strobe charging circuit. When the strobe charging circuit completes charging the strobe unit 14, the neon tube 11 blinks. As a result, the light from the neon tube 11 is transmitted to the front cover 18
It is guided to the outside from the charging confirmation hole 11a formed in the.
At the same time, the objective lens 104a inserted in the holding frame 110
The light of the neon tube 11 is guided to the light guide portion 127 of the holding plate 125 which is formed of a light guide plastic and covers the upper part of the eyepiece lens 104b and the inner surface 127a of the light guide portion 127.
Then, the light is reflected and guided to the charging confirmation window 120 formed on the rear cover 19 near the finder eyepiece window 8b. Therefore, the user can confirm whether or not the strobe unit 14 has been charged and perform the next photographing even if he / she takes his / her eyes away from the viewfinder eyepiece window 8b in a state where the photographing posture is maintained. It becomes possible to take flash photography continuously at time intervals. Furthermore,
The charging confirmation window 120 through which the light of the neon tube 11 is guided is formed on the rear cover 19 near the finder eyepiece window 8b and is not guided into the finder 8. Thus, the subject can be framed as desired without being disturbed.

According to this embodiment, the bearing holes 40, 41,
42 between the gears 45, 46 and 47, between the shafts 43 and 44 and the gears 48 and 49, between the gears 45, 46 and 47 and the hole 51 formed in the top plate 33, and between the shaft 63 of the winding gear 60 and the ceiling. Board 3
No grease is applied between the holes 64 formed in No. 3 and these are fitted and engaged in a directly contactable state. Can be improved and
When the lens-fitted film unit 1 is disassembled and reassembled, the gear group 31 can be reused as it is to assemble the lens-fitted film unit 1. Further, on the side portion of the grip portion 22 of the front cover 18,
Two engaging holes 18a and 18b are formed, and on the other hand, two engaging members 26a and 26b extending forward are formed on the side portion of the motor unit storage chamber 26.
6a and 26b have projections 29a and 29 which can be engaged with the engagement holes 18a and 18b formed in the front cover 18, respectively.
b is formed. The engaging members 26a, 26b are formed of elastically deformable members, and the engaging members 26a, 26b
26b is elastically deformed inwardly of the motor unit housing chamber 26, so that the protrusions 29a, 29b of the engaging members 26a, 26b.
Is engaged with the engagement holes 18a and 18b of the front cover 18, whereby the main body portion 12 and the front cover 18 are coupled. Here, the engaging member 26 near the protrusions 29a and 29b
The surfaces of the a and 26b facing the engagement holes 18a and 18b are the main body portion 12 near the engagement holes 18a and 18b of the front cover 18.
Since it has a shape that matches the shape of the surface facing
When the protrusions 29a and 29b of the engaging members 26a and 26b are engaged with the inside of the engaging holes 18a and 18b of the front cover 18, the engaging members 26a and 26b near the protrusions 29a and 29b.
Part of the front cover 18 is in close contact with the front cover 18 near the engagement holes 18a and 18b to completely close the engagement holes 18a and 18b of the front cover 18, and the main body part 12 and the front cover 18 are separated from the coupling portion by dust. It is possible to combine with each other so as to prevent the entry of Further, according to this embodiment, the two protrusions 52a are provided on the surface of the top plate 33 on the opposite side on which the engaging claws 50 are formed.
A dust collecting box 53 including 52b, 52c, 52d, and 52e is formed, and the operation plate 54 integrally formed with the main switch knob 6 is provided with the protrusions 52a, 52b, and 52.
Since it is slidably accommodated along c, 52d, and 52e, even if dust enters inside from the portion of the main switch knob 6 exposed to the outside so that the user can operate it, Are collected in the dust collection box 53, and the gears 38, 45, 4 near the main switch knob 6 are collected.
Dust enters the portion of the gear group 31 made up of 6, 47, 48, 49 to prevent the gear group 31 from being driven, and the film 20b
It becomes possible to prevent the trouble of feeding the paper.

The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. It goes without saying that it is one. For example, in the embodiment described above, the body member 12 has an engaging member 26.
a and 26 b are formed, and the engaging hole 18 is formed in the front cover 18.
Although a and 18b are formed, the engaging members 26a and 26a
b may be formed in the front cover, and the engagement holes 18a and 18b may be formed in the main body portion 12. Further, in the above embodiment, the two engaging members 26a, 26b and the two engaging holes 18a, 18b are formed, but the number of engaging members and engaging holes is not limited to two. Without
It suffices if at least one engagement member and engagement hole are formed. Further, in the above embodiment, the neon tube 11
The light from the is guided to the charging confirmation window 120 formed on the rear cover 19 near the viewfinder eyepiece window 8b by the light guide portion 127 provided on the holding plate 125 formed of light guiding plastic, and the The neon tube 11 is designed so that it can be confirmed whether or not the charging is completed.
Light from the rear cover 1 near the viewfinder eyepiece window 8b
It suffices that the light is guided to the charging confirmation window 120 formed on the connector 9, and instead of the light guide portion 138 provided on the holding plate 125 formed of light guide plastic, other light guide means such as an optical fiber is used. By using the light, the light from the neon tube 11 may be guided to the charging confirmation window 120. Furthermore, in the above-described embodiment, the neon tube 11 is used to indicate that the strobe unit 14 has been charged. However, instead of the neon tube 11, a light emitting diode (L
A suitable light emitting member such as ED) may be used. Further, in the above embodiment, the upper plate 107 of the front cover 18 also has
Although the charge confirmation hole 11a for guiding the light of the neon tube 11 to the outside is formed, the charge confirmation hole 11a may be omitted, or the holding plate 125 is not provided with the light guide portion 127 and the rear cover is provided. It is also possible to form only the charge confirmation hole 11 a without forming the charge confirmation window 120 in 19 and confirm whether or not the charging of the strobe unit 14 is completed.

Further, in the above-mentioned embodiment, in order to prevent the battery 15 from being erroneously loaded, the projection 15
However, as shown in FIG. 13, the bottom surface 19 of the rear cover 19 can be loaded only in a predetermined direction.
The battery mark 160 and the plus mark 161 and the minus mark 162 may be engraved on c to clarify the loading direction of the battery 15 and prevent erroneous loading of the battery 15.

[0037]

According to the present invention, there is provided a lens-equipped film unit including a main body having a film winding motor and a gear group for transmitting the driving force of the motor, and a front cover. It is possible to provide a film unit with a lens that can be reused and has an improved assembling property.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an appearance of a film unit with a lens according to an embodiment of the present invention.

FIG. 2 is a schematic exploded perspective view of a unit main body of a film unit with a lens.

FIG. 3 is a schematic exploded perspective view of a film winding motor unit 16 and a switch 17.

FIG. 4 is a schematic exploded perspective view of a motor unit.

FIG. 5 is a schematic side view of a switch when a shutter button is operated.

FIG. 6 is a schematic side view of a switch when driving a motor.

FIG. 7 is a schematic side view of a switch when the motor is stopped.

FIG. 8 is a schematic exploded perspective view of an exposure unit.

9 is a partially enlarged schematic exploded perspective view of the strobe unit 14. FIG.

FIG. 10 is a schematic perspective view of a shutter mechanism including a shutter button 5.

FIG. 11 is a schematic perspective view showing a loaded state of a battery.

FIG. 12 is a schematic top view when a switch is OFF.

FIG. 13 is a schematic perspective view showing another example of a battery loading state.

[Explanation of symbols]

 1 Film unit with lens 2 Unit body 3 Outer case 4 Strobe light emitting part 4a Strobe opening 5 Shutter button 6 Main switch knob 7 Number of shots display plate 7a Tooth row 8 Finder 8a Viewfinder objective window 9 Shooting lens 9a Opening 10 Strobe charge switch 12 main body part 13 exposure unit 14 strobe unit 15 battery 16 motor unit 17 switch 18 front cover 19 rear cover 20 film with patrone 20a patrone 20b film 20c film roll 20d spool 21 optical axis 22 grip part 23 exposure opening 24 patrone storage chamber 25 film Roll storage chamber 26 Motor unit storage chamber 27a, 27b, 27c, 27d Engaging claw 28a Protrusion 28b Pin 30 Motor 30a Motor rotation shaft 31 Gear group 32 Holding frame 33 Top plate 34 Gear support 34a Hole 35 Motor support 35a Hole 36 Connection 36 37 Motor head 38 Gear 40, 41, 42 Bearing hole 43, 44 Shaft 45, 46, 47, 48, 49 gear 49a lower gear 50 engaging claws 52, 53 ridge 54 operating plate 54a protruding portion 55 convex portion 56, 57 concave portion 60 winding gear 61 bearing opening 62 drive shaft 62a tooth row 63 shaft 64 hole 65 boss 85 base portion 86 exposure Aperture 95 Driven sprocket 96 Shutter blade 99 Rear lens 100 100 Front lens 104a Objective lens 104b Eyepiece 110 Holding frame 120 Charging confirmation window 121 Strobe charging contact 122 Substrate 123, 124 Contact 125 Presser plate 126 Lens section 127 Light guide section 128 capacitors

Claims (4)

[Claims] 1. A lens-equipped film unit comprising a front cover and a main body portion having a film winding motor and a gear group for transmitting the driving force of the motor, and a sliding surface of the gear group is a lubricant. A film unit with a lens, which can be directly contacted without intervening. 2. At least one engagement hole is formed in one of the main body portion near the gear group and the front cover, and the other one of the main body portion near the gear group and the front cover is formed. An elastic engaging member having an engaging protrusion that can be engaged with the engaging hole is formed, and when the engaging protrusion engages with the engaging hole, the vicinity of the engaging protrusion is provided. The lens-equipped film unit according to claim 1, wherein the engagement member is configured to close the engagement hole. 3. A surface of the engaging member in the vicinity of the engaging protrusion that faces the engaging hole faces an engaging protrusion of one of the main body portion and the front cover in the vicinity of the engaging hole. The film unit with a lens according to claim 2, wherein the film unit with a lens has a shape that matches a shape of a surface to be formed. 4. Further provided so as to be operable from the outside,
4. The lens-equipped film unit according to claim 1, further comprising a switch knob for turning on and off the motor, and a dust collecting section provided on the main body portion below the switch knob. .