JPH08106118A - Film loading mechanism for camera - Google Patents

Abstract

PURPOSE: To provide a film loading mechanism for a camera capable of surely moving a film-related member back and forth in accordance with a film feeding operation. CONSTITUTION: This mechanism is provided with a driving gear 36 connected with a driving source 21, a solar gear 32 connected with a spool engaging member 6, a planet gear 35 supported so as to be rotated around the solar gear 32, a planet gear pressing means 39 for pressing the planet gear in a direction of engaging the planet gear with the driving gear, a state changing member 34 for supporting the solar gear and the planet gear, also, for engaging the planet gear with the driving gear when the film 7 is fed out of a film cartridge 5, besides, for separating the planet gear from the driving gear when the film is wound around the spool 10 and the spool engaging member is rotated in accordance with the film winding operation, and the mechanism is also provided with the film-related member 56 installed so as to withdraw to a film feeding path and go forward cooperatively with the state changing member.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film loading mechanism for a camera, and more particularly to a camera for automatically feeding the film from the film cartridge by rotating the supply spool shaft in the film cartridge. The present invention relates to a film loading mechanism.

[0002]

2. Description of the Related Art In a camera using a roll-shaped film which has been generally put into practical use, a film feeding path for feeding the film frame by frame, for example,
A perforation detecting means such as a sprocket and a claw member is provided, and the sprocket, the claw member and the like are engaged with the perforations provided on the film to feed the film, and the rotation amount of the sprocket and the claw member etc. It is widely used that the amount of fed film is detected by the detection.

On the other hand, in recent years, a film patrone for accommodating the leading end portion (leader portion) of a roll-shaped film in a film patrone, and accommodating a film for which perforation for feeding a film is abolished, Various proposals have been made, for example, by USP 4832275. In a camera using such a film cartridge, the film is stored in the film cartridge by rotating and driving a supply spool shaft provided in the film cartridge. Various film feeding devices have been proposed in which a roll-shaped film is fed to the outside of a film cartridge.

For example, a film feeding device for a camera disclosed in Japanese Patent Laid-Open No. 2-67534 and the like interlocks with a loading operation for loading the film patrone at a predetermined position in a patrone chamber of a camera body. By rotating the supply spool shaft in the cartridge, the roll-shaped film wound around the supply spool shaft and accommodated therein is automatically fed to the outside of the film cartridge. Then, following the initial feeding operation of the film, the film travels in the film feeding path in the camera body and is wound on the film winding spool, and then the film winding spool is moved in the film winding direction. The film winding operation is performed by rotating the film.

Further, in order to magnetically record photographing information and the like on the film surface of the roll-shaped film housed in the film cartridge, for example, a magnetic recording portion composed of a magnetic material layer is arranged. The film, for example,
Various proposals have been made by USP 4987431 etc., and in a camera using such a film,
A magnetic head or the like for magnetically recording on the magnetic recording portion or the like of the film, and a member such as pressing means for bringing the magnetic head or the like into contact with the magnetic recording portion of the film are required. .

Therefore, in a camera using the film cartridge in which the leader portion of the film is housed in the film cartridge as described above, when the members such as the magnetic head and the pressing means are arranged on the film feeding path. When the initial feeding operation of the film is performed, the leader portion of the film comes into contact with the members such as the magnetic head and the pressing means on the film feeding path, and the initial feeding of the film and the film winding operation are performed. This will be an obstacle, and the film cannot be loaded into the camera body.

Therefore, in order to prevent this, when performing the initial feeding operation of the film, the magnetic head,
While retracting members such as the pressing means from the film feeding path, when detecting that the film is wound on the film winding spool and performing the film winding operation, the magnetic head, the pressing means, etc. Conventionally, various means have been proposed for bringing the member into contact with the magnetic recording portion or the like on the film surface.

For example, a camera using a film with a magnetic recording unit disclosed in Japanese Patent Application Laid-Open No. 4-1622 counts the number of perforations of the film sent from the inside of the film cartridge, for example, on the film feeding path. Alternatively, a detection means for photoelectrically detecting the leader portion of the film is provided, and the detection means substitutely detects that the film sent out from the inside of the film cartridge is wound on the film take-up spool. In response to this detection signal, a drive source such as a drive motor moves a pressing pad or the like for bringing the magnetic recording portion on the film surface into contact with the magnetic head or the like from the retracted position to the pressed position. It was made to let.

Further, the present applicant previously filed Japanese Patent Application No. 6-137.
According to No. 466, the fact that the film in the film cartridge is wound around the film take-up spool is detected by the movement of the film cartridge based on the change in the tension of the film, and is linked to the detection signal at this time. Then, the magnetic head and the like are moved from the retracted position to the set position.

[0010]

However, in the camera that is generally put into practical use as described above, the USP
Film proposed by 4832275,
That is, in the case of applying a film patrone of a system in which the leader part of the film is stored in the film patrone, since each member such as the sprocket and the claw member is arranged on the film feeding path, At the time of initial feeding, a mechanism for retracting each member such as the sprocket and the claw member from the film feeding path is required, and there is a problem that it cannot be used as it is.

Further, according to the means disclosed in the above-mentioned Japanese Patent Laid-Open No. 2-67534, it relates only to a film feeding device for automatically carrying out the initial feeding of the film and the film winding operation. Members such as a magnetic head and a pressing pad arranged when a film having a magnetic recording portion and the like is used are not taken into consideration, and an advance / retreat mechanism thereof is not disclosed.

On the other hand, according to the means disclosed in Japanese Patent Laid-Open No. 4-1622, a detecting means for detecting that the film sent out from the film cartridge is wound around the film take-up spool is provided. However, it is not a means to directly detect, but a phenomenon close to it is judged by the substitute characteristic that the film is wound on the film take-up spool, which may cause a malfunction. There is.

Further, since the number of perforations that have passed on the above-mentioned detecting means is detected, there is a problem that it cannot be applied when a film having no perforations is used in the leader portion of the film. is there.

Further, since the detection means is adapted to perform electric detection, a member such as an actuator such as a drive motor is required to retract the magnetic head, the pressing pad and the like from the film feeding path. However, this causes a cost increase, and the size of the apparatus itself increases, which causes a problem in downsizing the camera.

According to the means proposed in Japanese Patent Application No. 6-137466, the fact that the film is wound around the film winding spool is directly detected. Since the detection is made by the movement of the cartridge, the members related to the film cartridge also need to be retracted from the film feeding path at the same time. Therefore, there is a problem that the mechanism itself becomes complicated and the size becomes large.

An object of the present invention is to solve the above-mentioned conventional problems and to carry out the initial feeding of a film,
The magnetic recording member such as the magnetic head and the pressing pad, the sprocket for detecting perforations, the film feeding member such as the claw member are retracted from the film feeding path, and the film take-up spool is also provided. By correctly determining that the film is wound on the magnetic head, the pressing pad, etc.
Another object of the present invention is to provide a film loading mechanism for a camera, which can prevent film loading failure and the like due to erroneous forward / backward movement of each member such as a sprocket and a claw member, and can reliably perform film loading and film feeding.

[0017]

SUMMARY OF THE INVENTION A film loading mechanism for a camera according to the present invention includes a spool engaging member that engages a supply spool shaft of a loaded film cartridge and feeds the film out of the cartridge, and a film winding mechanism that winds the fed film. In a film loading mechanism of a film automatic loading camera having a take-up spool and a drive source for driving the spool engaging member and the take-up spool, a drive gear connected to the drive source, and the spool engaging member. A sun gear connected to, a planetary gear supported revolvably around the sun gear, a planetary biasing means for biasing the planetary gear in a direction in which the planetary gear meshes with the drive gear, the sun gear and the sun gear. While supporting the planetary gears, when the film is sent out from the cartridge, the planetary gears should mesh with the drive gears. And a state change member configured to disengage the planetary gear from the drive gear when the film is wound around the take-up spool and the spool engagement member is driven and rotated by the film. A film-related member provided in association with the changing member so as to be able to retract and advance into the film feeding path, and further, having the film-related member, detachable from the state changing member. It is characterized by comprising an interlocking member arranged and an urging means for urging the interlocking member in a direction in which the film-related member advances into the film feeding path. Further, at the time of film rewinding, the state changing member is configured to disengage the planetary gear from the drive gear, and in association with the state changing member, the film related member is retracted from the film feeding path. It is characterized by

[0018]

When the film is sent from the film cartridge by the state change member supporting the sun gear and the planet gear, the planet gear is engaged with the drive gear, the film is wound around the take-up spool, and the spool engaging member is driven by the film. When it is rotated, the planetary gear is disengaged from the drive gear. At the same time, the film-related member can be retracted and advanced on the film feeding path in association with the state changing member. Then, when the film is rewound, the planetary gear is disengaged from the drive gear by the state changing member, and the film related member is retracted from the film feeding path in conjunction with the state changing member.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. FIG. 1 is a perspective view showing an outline of a camera of a first embodiment of the present invention, and is a view showing an internal mechanism when the camera is viewed from the back side. The film cartridge used in the first embodiment is, for example, the above-mentioned USP48.
What is proposed by No. 32275 etc. shall be applied. That is, in the film cartridge, all the roll-shaped film leaders are stored, and the film is wound around a supply spool shaft that is rotatably supported in the film cartridge. It was done. Then, on the film surface, a magnetic recording portion for recording shooting information and the like, for example, including a magnetic layer, is provided outside the exposure screen.

As shown in FIG. 1, the camera body 1 is provided with a photographing opening 2 which is located substantially in the center thereof and sandwiches the photographing opening 2. Film Patrone 5 stored
A patrone chamber 3 into which (indicated by an phantom line, a two-dot chain line in FIG. 1) is loaded is provided, and
At the other end, a film winding chamber 4 is provided in which a winding spool 10 for winding the film 7 fed from the film cartridge 5 is rotatably supported and arranged.

An engaging member 6 which is a spool engaging member is arranged on the ceiling of the cartridge chamber 3 so as to project inwardly of the cartridge chamber 3. Reference numeral 6 is connected to a drive mechanism (not shown in FIG. 1, see FIG. 2) including a gear train for driving the film 7 in the camera body 1. As a result, when the film cartridge 5 is loaded in the cartridge chamber 3, the engaging member 6
Engages with the supply spool shaft rotatably supported in the film cartridge 5, the supply spool shaft is rotationally driven by the drive mechanism or the like, and the film 7 in the film cartridge 5 is It is designed to be sent outside.

In the film winding chamber 4, the winding spool 10 is rotatably supported as described above.
Rollers 11 and 12 are arranged along the outer peripheral surface thereof. The rollers 11 and 12 are the same as those disclosed in JP-A-60-45231.
The film 7 sent out from within the film cartridge 5 by a known method disclosed in Japanese Patent Publication No.
Is provided to guide the outer peripheral surface of the take-up spool 10 when the leader portion 7a of the film 7 is introduced into the film take-up chamber 4, whereby the film 7 is guided to the take-up spool 10. It is designed to be wound automatically.

An inner guide rail 8 and an outer guide rail 9 are provided on the upper side and the lower side of the photographing opening 2, respectively. This inner guide rail 8
They are arranged at the upper edge and the lower edge of the photographing opening 2, respectively, and are provided to ensure the flatness of the film 7. That is, the inner guide rail 8 and the pressure plate (not shown) provided on the inner wall surface of the rear cover 13 position the film 7 in the camera body 1 in the optical axis direction. .

The outer guide rails 9 are arranged on the upper and lower sides of the inner guide rail 8, respectively, and are provided to position the film 7 in the width direction. is there.

A magnetic recording portion of the film 7 (not shown in FIG. 1) is located on the upper side of the photographing opening 2 and between the inner guide rail 8 and the outer guide rail 9. 2) is provided to the rear of the camera body 1 and a pressing pad 56, which is a film-related member and a pressing pad member, is provided, and the pressing pad on the inner wall surface of the back cover 13 is provided. A magnetic head 51 for recording photographing information and the like in the magnetic recording portion of the film 7 is arranged at a position facing 56.

In the camera of the above-described first embodiment having the above-mentioned structure, the structure of the film loading mechanism of the camera disposed inside the camera will be described below with reference to FIG.
The state shown in FIG. 2 is the initial state of the camera, and shows the state when the film is initially fed.

As shown in FIG. 2, the film loading mechanism of the camera of the first embodiment has a drive motor 21 as a drive source.
And through the output shaft 21a, the pinion gear 22 arranged at the tip of the output shaft 21a, and the two-stage gear 25 that meshes with the pinion gear 22, into the film winding chamber 4. A take-up gear 24 for rotationally driving the take-up spool 10 which is freely supported; a one-way clutch 23 which is a one-way clutch mechanism provided coaxially with the take-up spool 10 and the take-up gear 24; A gear train and the like on the film winding side formed of the rollers 11 and 12 arranged in the film winding chamber 4 are arranged.

On the other hand, the output shaft 21a of the drive motor 21
Two-stage gear 29 that meshes with the pinion gear 22 of the above, a gear 28 that meshes with the two-stage gear 29, and a sun gear 2 that rotates integrally with the gear 28 and the shaft 26a.
6 and a planetary gear 30 that meshes with this sun gear 26
And one end of which is rotatably supported by the shaft 26a and the other end of which is rotatably supported by the planetary gear 30.
6 and the planetary gear 30, a planetary lever 27, an intermediate gear 36 that is a drive gear that meshes with the planetary gear 30, and a supply spool shaft 5a that is rotatably supported in the film cartridge 5. A shaft 33 provided coaxially with the engaging member 6 and a rewinding gear 31 integrally rotatably provided coaxially with the shaft 33,
A sun gear 32 connected to the supply spool shaft 5a by the shaft 33; and a planetary lever 34, which is a state change member that pivotally supports the sun gear 32 at its base portion 34c and is composed of three arms. This planet lever 34
A pin 34a provided on the tip of the first arm portion of the camera and planted upward, a pin 40 planted on a fixing member (not shown) in the camera body 1, and the pin 34a. The tension spring 39, which is a planetary biasing means stretched between the pin 40, and the second L-shaped planetary lever 34.
A planetary gear 35 rotatably provided below the base portion 34d of the arm portion, a bent portion 34b at the tip end portion of the third arm portion of the planetary lever 34, and the like form a gear train on the film feeding side.

A gear 38b meshing with the rewinding gear 31, a gear 38a rotatably integrally supported by the gear 38b via a shaft 38c, a gear 37 meshing with the gear 38a, and the like. A gear train on the film rewinding side is configured.

The second arm of the planetary lever 34 is
It is a lever member that connects the sun gear 32 and the planetary gear 35, and the tip of the second arm of the planetary lever 34 is L-shaped, and the tip is the camera. By contacting a stopper pin 58 implanted in a fixing member (not shown) in the main body 1, it also serves as a rotation restricting member that restricts the counterclockwise rotating operation of the planetary lever 34 in FIG. ing.

The tip end of the third arm portion of the planetary lever 34 is bent downward at a substantially right angle to form a bent portion 34b.
And is adapted to interlock with the forward / backward movement of the pressing pad 56 (details will be described later).

The intermediate gear 36, which is a drive gear, is also used.
Is rotatably supported by a fixing member (not shown) in the camera body 1 so as to be engageable with and disengageable from both the planetary gear 30 and the planetary gear 35.

Further, the gear 37 is located at a position where the sun gear 26 meshes with the planetary gear 30 when the sun gear 26 rotates clockwise in FIG. 2 and the planetary gear 30 meshes therewith. It is rotatably provided on a fixing member (not shown) in the camera body 1.

In such a structure, the reduction ratio of the film winding gear train constituted by the pinion gear 22, the two-stage gear 25, the winding gear 24 and the like is set to I1, and the pinion gear 22 and the two-stage gear 2 are set.
9, gear 28, sun gear 26, planet gear 30, intermediate gear 36, planet gear 35, and sun gear 32.
Let I2 be the reduction ratio of the film feed gear train composed of the above.

The pinion gear 22, the two-stage gear 29, the gear 28, the sun gear 26, and the planetary gear 3 are also included.
0, the gear 37, the two-stage gear 38, the rewinding gear 31, and the like, and the reduction gear ratio of the film rewinding gear train is I3, the relations I1 <I2 and I1 <I3 are set. Has been done.

On the other hand, the interlocking lever 52, which is an interlocking member that is disengageably disposed on the planetary lever 34, which is the state changing member, has a base member 52c at which a fixing member (not shown) on the camera body 1 is provided. It is rotatably supported by a shaft 53 that is planted in.

As described above, the one arm portion 52b of the interlocking lever 52 is detachably attached to the planet lever 34, and the one arm portion 52b includes the planet lever 34.
The bent portion 34b of the third arm portion can come into contact with the urging force of the tension spring 39.

Further, a shaft 52a is planted downward on the tip of the other arm of the interlocking lever 52, and the tip of the shaft 52a on the lower side is retracted to the film feeding path. Also, a pressing pad 56, which is a film-related member provided so as to be able to advance, is provided.

The other end of the interlocking lever 52 is engaged with one end of a torsion spring 55 which is a biasing means wound around the pin 53, and the torsion spring 55 has The other end is engaged with a pin 54 that is planted in a fixing member (not shown) of the camera body 1. As a result, the interlocking lever 52 is moved as shown in FIG.
In the clockwise direction, that is, the pressing pad 56 is urged in the direction of advancing onto the film feeding path.

As described above, the pressing pad 56 has the magnetic head with the film feed path sandwiched in the closed state of the back cover 13 (not shown in FIG. 2, see FIG. 1). 51, the interlocking lever 52 is rotated clockwise in FIG. 2 by the urging force of the torsion spring 55, so that the pressing pad 56 causes the magnetic recording portion of the film 7. 7b is pressed against the magnetic head 51. As a result, the magnetic head 51
The magnetic recording circuit 57 magnetically records photographing information and the like on the magnetic recording portion 7b of the film 7.

The pressing pad 56 is formed of a member made of a flexible material such as felt,
The surface of the film 7 is prevented from being damaged by scratches or the like.

When the planetary gear 35 is in mesh with the intermediate gear 36, the planetary lever 34 is
The bent portion 34b of the torsion spring 5 is pressed against the one arm portion 52b of the interlocking lever 52 by the urging force of the tension spring 39.
2 against the biasing force of FIG.
Is rotated counterclockwise. The pressing pad 56 is rotated in the direction away from the surface of the film 7 in association with the rotation operation of the interlocking lever 52, and is retracted from the film feeding path.

On the other hand, when the sun gear 32 is driven in the counterclockwise direction in FIG. 2, the planetary lever 34 is moved by the frictional force between the planetary lever 34 and the planetary gear 35 to cause the tension spring to move. 2, the planetary gear 35 revolves counterclockwise in FIG. 2 together with the planet lever 34. It is like this. Therefore, in conjunction with this, the interlocking lever 52 is rotated clockwise in FIG. 2 by the urging force of the torsion spring 55, and the pressing pad 56 is advanced onto the film feeding path, and the magnetic force of the film 7 is increased. The recording portion 7b is pressed against the magnetic head 51.

In the film loading mechanism of the camera of the first embodiment having the above-described structure, the operation when the film feeding operation is performed after the film cartridge 5 is loaded in the camera body 1 will be described with reference to FIG. ~ It demonstrates below by FIG. 3 and 4 are perspective views of the film loading mechanism of the camera. FIG. 3 shows a state during film winding operation, and FIG. 4 shows a state during film rewinding operation. It is a figure which respectively shows.

First, as shown in FIG. 2, the film cartridge 5 is loaded into the camera body 1. That is,
As shown in FIG. 1, the back cover 13 of the camera body 1
Of the camera body 1 in the open state
When the film cartridge 5 is loaded therein, the supply spool shaft 5 a of the film cartridge 5 is engaged with the engaging member 6. The state of the film cartridge 5 at this time is a state in which the film 7 is entirely housed inside the film cartridge 5.

When the back cover 13 is closed after the film cartridge 5 is loaded in the cartridge chamber 3, the back cover switch (not shown) arranged on the back cover 13 or the camera body 1 is shown. The rear cover 13 is detected to be closed by a detecting means such as (d). In response to the signal from the detecting means, the drive motor 21 is rotationally driven in the film feeding direction, that is, in the counterclockwise direction in FIG. Then, the rotational driving force of the drive motor 21 is transmitted to the film feed gear train side and the film take-up gear train side.

That is, the rotational driving force of the drive motor 21 causes the sun gear 26 to rotate counterclockwise in FIG. 2 via the pinion gear 22, the two-stage gear 29, and the gear 28. Then, the planetary gear 30 revolves around the sun gear 26 in the counterclockwise direction in FIG. Therefore, the planetary gear 30 meshes with the intermediate gear 36 to be in the state shown in FIG.

As shown in FIG. 2, the planetary lever 34 is moved by the urging force of the tension spring 39.
, The planetary gear 35 is pivotally supported by the second arm of the planetary lever 34.
Is in a state of being meshed with the intermediate gear 36.
Therefore, the rotational driving force of the drive motor 21 is transmitted to the planetary gear 35 via the intermediate gear 36,
This is rotated clockwise in FIG. 2 and the sun gear 32 is rotated counterclockwise in FIG.

As a result, the engaging member 6 arranged coaxially with the sun gear 32 via the shaft 33 also
In FIG. 2, the supply spool shaft 5 of the film cartridge 5 engaged with this rotates in the counterclockwise direction.
The film 7 is initially fed by rotating a in the counterclockwise direction in FIG. 2, that is, in the direction of feeding the film 7.

In this state, the planetary lever 34 is urged by the tension spring 39 in the clockwise direction in FIG. Therefore, the bent portion 34b of the planetary lever 34 is not
2 is pressed against the urging force of the torsion spring 55, the interlocking lever 52 is rotated in the counterclockwise direction in FIG. Evacuated from the feeding path. Therefore,
The film 7 runs in the film feeding path toward the take-up spool 10 and the initial feeding of the film 7 is smoothly performed.

As described above, the rotational driving force of the drive motor 21 is generated by the gear train on the film winding side, that is,
The winding gear 24 is rotated counterclockwise in FIG. 2 via the pinion gear 22 and the two-stage gear 25, and the one-way clutch 23 arranged coaxially therewith.
Is transmitted to the take-up spool 10 via.

Here, when the initial feeding operation of the film 7 proceeds and the leader portion 7a of the film 7 reaches the take-up spool 10, as described above, the speed reduction ratio I1 of the film take-up gear train and the film Since the relationship of the reduction gear ratio I2 of the delivery gear train is set so that I1 <I2, the peripheral speed at which the take-up spool 10 rotates is faster than the speed at which the film 7 is delivered. Become. Therefore, the leader portion 7a of the film 7 which has reached the take-up spool 10 is wound around the outer peripheral portion of the take-up spool 10 by the rollers 11, 12 and the like, and the film 7 produced by the take-up spool 10 is wound.
The hoisting operation will be advanced.

As described above, since the sun gear 32 receives the driving force in the winding direction of the film 7, that is, the counterclockwise direction in FIG. 2, from the time when the winding operation by the winding spool 10 is started. The planetary lever 34 is rotated counterclockwise in FIG. 2 against the biasing force of the tension spring 39, and the state shown in FIG. 2 changes to the state shown in FIG. The planetary lever 34 is restricted in its rotation by contacting the stopper pin 58, but is held in this position by the rotational driving force of the sun gear 32.

Further, in this state, since the urging force of the torsion spring 55 acts on the interlocking lever 52, the bent portion 34b of the planetary lever 34 is rotated counterclockwise in FIG. 2, the interlocking lever 52 rotates clockwise in FIG. 2, and in conjunction with this, the pressing pad 56 moves in a direction in which the magnetic recording portion 7b of the film 7 is pressed against the magnetic head 51. Then, the film advances to the film feeding path, and the state shown in FIG. 3 is obtained.

At this point, the film 7
The winding operation is performed only by the rotational driving force of the winding spool 10. That is, as shown in FIG.
Rotation of the planetary lever 34 in the counterclockwise direction in FIG. 2 disengages the planetary gear 35 from the intermediate gear 36, so that the transmission path of the gear train on the film feeding side by the drive motor 21 is changed. The supply spool shaft 5a in the film cartridge 5 is interrupted.
Will rotate following the winding operation of the film 7 by the winding spool 10. Therefore, the film 7 can be wound up by the take-up spool 10 without any problem even if the film 7 is subjected to the pressing load of the pressing pad 56, and at the time of winding the film 7, the magnetic recording on the magnetic recording portion 7b is also performed. It will be done without problems.

Next, when the filming of all the frames of the film 7 is completed, a signal for starting the rewinding of the film 7 is generated, or during the filming, for example, an intermediate rewinding switch (not shown) or the like. When a signal for starting the rewinding of the film 7 is generated by, the film drive motor 21 receives this signal and rotates in the clockwise direction in FIG. 3, that is, the film rewinding direction. Then, the sun gear 26 is rotated clockwise in FIG. 3 via the pinion gear 22, the two-stage gear 29, and the gear 28. Then, the planetary gear 30 revolves around the sun gear 26 in the clockwise direction in FIG. Therefore, the planetary gear 30 is disengaged from the intermediate gear 36 and meshed with the gear 37 to be in the state shown in FIG.

As a result, the rotational driving force of the drive motor 21 is transmitted to the gear train side on the film rewinding side. That is, the pinion gear 22 and the two-stage gear 2
9, the gear 28, the sun gear 26, the planetary gear 30, the gear 37, the two-stage gear 38, and the rewinding gear 31 are connected, so that the driving force of the drive motor 21 is transmitted to the rewinding gear 31. This is rotated clockwise in FIG. Then, the engaging member 6 is rotated in the clockwise direction in FIG. 4, that is, the film rewinding direction, via the shaft 33 provided coaxially therewith. Therefore, the supply spool shaft 5a of the film cartridge 5 that engages with the engaging member 6 also rotates clockwise in FIG. 4, and the film rewinding operation of rewinding the film 7 into the film cartridge 5 is performed.

Here, the film drive motor 21 is
By rotating clockwise in FIG. 4, the gear train on the film winding side, that is, the winding gear 24 also rotates clockwise through the pinion gear 22 and the two-stage gear 25. As described above, the relationship between the speed reduction ratio I1 of the film winding gear train and the speed reduction ratio I3 of the film rewinding gear train is I1 <I
Since the winding speed is set to 3, the angular velocity driven by the winding gear 24 is higher than the angular velocity when the film 7 is rotationally driven in the winding spool 10. Therefore, the one-way clutch 23
By this action, the driving force of the drive motor 21 is not transmitted from the take-up gear 24 to the take-up spool 10, and the supply spool shaft 5a does not interfere with the gear train on the film take-up side. By being rotated, the film 7 is rewound in the film cartridge 5.

As shown in FIG. 4, when the film rewinding operation is performed, the sun gear 32 moves in the same direction as the rewinding gear 31 rotates clockwise in FIG. Rotate to. As a result, the planetary lever 34 is also rotated clockwise in FIG. 4, so that the planetary gear 35 is replaced by the intermediate gear 36.
Mesh with. At the same time, the bent portion 34b of the planetary lever 34 presses the one arm portion 52b of the interlocking lever 52 to resist the biasing force of the torsion spring 55, and the interlocking lever 52 moves counterclockwise in FIG. Is rotated to.
In conjunction with this, the pressing pad 56 is retracted from the film 7 surface on the film feeding path.

As described above, according to the first embodiment, when the film 7 in the film cartridge 5 is initially fed out to the outside of the film cartridge 5, the state changing member is used. The planetary lever 34 holds the pressing pad 56, which is the film-related member, at a position retracted from the film feeding path, and after the initial feeding operation of the film 7, the film 7 is wound on the take-up spool 10. When the film 7 is wound and the film 7 is wound up, a driving force in the film winding direction by the film 7 is applied to the sun gear 32 that constitutes the gear train on the film feeding side. Then, the state of the planetary lever 34 is changed, and the state of the planetary lever 34 is changed. , The pressing pad 56, from a position retracted from the film feed path, it can be moved to a position to be advanced to the film feed path.

Further, when the film 7 is rewound into the film cartridge 5 after the photographing is finished, the drive motor 2 is used.
By changing the rotation direction of 1, the planetary gear 30 is meshed with the gear train on the film rewinding side, and in conjunction with this, the state of the planetary lever 34 is changed, and the pressing pad 56 is fed to the film. It can be moved to a retracted position from the feeding path.

That is, during the initial film feeding operation, members such as the pressure pad 56, which is a film-related member, are retracted from the film feeding path so that the leader portion 7a of the film 7 can be fed smoothly. During the film winding operation, a member such as the pressure pad 56, which is a film-related member, is advanced onto the film feeding path to press the magnetic recording portion 7b of the film 7 against the magnetic head 51, thereby the magnetic head. Information can be reliably recorded on the magnetic recording portion 7b by 51. Further, at the time of film rewinding operation, the film rewinding can be reliably performed by retracting the pressing pad 56 and the like from the film feeding path.

5 and 6 are perspective views showing the film loading mechanism of the camera of the second embodiment of the present invention. FIG.
The state during the initial feeding operation of the film is also shown in FIG.
Shows respective states during the film winding operation. The second embodiment basically has the same configuration as the camera of the first embodiment described above. Therefore,
Descriptions of the same members as those in the first embodiment are duplicated, and thus the same reference numerals are given and the description thereof is omitted.
Further, in FIGS. 5 and 6, in order to avoid complication of the drawings, basic members for feeding the film, such as a drive motor and a gear train for transmitting the driving force, are omitted, and the above-mentioned drawings are omitted. Reference shall be made to FIGS.

In this second embodiment, the same film patrone 5 as applied in the first embodiment described above is applied, but the roll-shaped film 108 housed in this film patrone 5A. In each of the image exposure sections 108a, a pair of perforations 108b and 108c are provided, and the magnetic recording section 7a provided on the film 7 of the first embodiment is provided. Not yet. Therefore, the magnetic head 51 in the camera body,
Members such as the magnetic recording circuit 57 and the pressing pad 56 are not provided.

As shown in FIG. 5, the gear train on the film feeding side, which is composed of the planetary lever 34 and the like, which constitutes the above-mentioned state changing member, has the same construction as that of the first embodiment.

The bent portion 34b of the planet lever 34, which is the state changing member, is brought into contact with one arm of the interlocking lever 103, which is the interlocking member, by the urging force of the tension spring 39, which is the planetary urging means. And pressing this.
The interlocking lever 103 is rotatably provided at its base by a shaft 102 fixed to a fixing member (not shown) of the camera body. Then, in the middle of one arm portion of the interlocking lever 103, between the pin 103a that is planted toward the upper side and the fixed pin 104 that is planted on the fixing member (not shown) of the camera body. It is urged clockwise in FIG. 5 by a tension spring 105 which is a tensioning means that is stretched.
The rotation operation by the urging force of the planetary lever 34 is restricted by coming into contact with a stopper pin 106 implanted in a fixing member (not shown) of the camera body in a state where it does not come into contact with the bent portion 34b of the planetary lever 34. There is.

A hollow shaft 112 is arranged on the shaft 102. The hollow shaft 112 is integrally rotated with a gear 111 at its upper end and a sun gear 101 at its lower end. The sun gear 101 has a planetary gear 107 meshing with it. The planetary gear 107 is integrally disposed on a shaft 110 that is fitted into the bearing portion 103b of the interlocking lever 103 and is rotatably provided. A sprocket 109, which is a film-related member and a perforation detecting member, is integrally provided at the lower end of the shaft 110, and the perforation 10 of the film 108 is formed.
It is arranged at a position facing 8b and 108c.

To the sprocket 109, teeth 109a are arranged at positions equally divided into five on the outer peripheral portion thereof so as to engage with both of the perforations 108b and 108c on the film 108. The center-to-center distance between the teeth 109a is set to such a length that two adjacent teeth 109a can simultaneously engage with the perforations 108b and 108c of the film 108.

On the other hand, the gear 113 which meshes with the gear 111 is arranged integrally with the substrate 114 via the shaft 114b. A switch conductor pattern 114 a is formed on the upper surface of the substrate 114. A pair of conductor contact pieces 115a of the switch 115 arranged above the board 114 are provided so as to face the conductor pattern 114a of the board 114.
5a slides on the conductor pattern 114a,
The switch 115 is configured to be turned on (O
It is set so that the N) state is switched to the OFF state.

The gear ratio of the gear train composed of the planetary gear 107, the sun gear 101, the gear 111, and the gear 113 is such that the gear 113 makes five revolutions when the planetary gear 107 makes two revolutions. It is set. That is, when the sprocket 109 is rotated by two teeth, the gear 113 is rotated.
Is set to rotate once.

On the other hand, the frame number counter 116 is rotatably arranged on a shaft 117 fixed to a fixing member (not shown) of the camera body, and is provided in the vicinity of the frame counter 116. A one-tooth gear 118 integrally arranged on the shaft 121,
The so-called Geneva mechanism in which the gear portion of the frame counter 116 is set to advance by one tooth for one rotation of the one-tooth gear 118 by meshing with the gear portion of the outer periphery of the frame counter 116. Are configured. A torsion spring 120 is wound around the shaft 117 of the frame counter 116, one end of which is a pin 119a implanted in a fixing member of the camera body, and the other end is a fixing member of the camera body. And is stretched by being engaged with a pin 119b planted in. As a result, the piece counter 116 is biased counterclockwise in FIG. 5 by the biasing force of the torsion spring 120.

The operation of the film loading mechanism of the camera of the second embodiment having the above-described structure when the film feeding operation is performed will be described below. The operation until the film 108 is delivered from the film cartridge 5A, that is, the initial delivery operation of the film 108 is exactly the same as that of the first embodiment, and the description thereof is omitted.

First, when the initial feeding operation of the film 108 is performed, as shown in FIG.
3 is pressed by the bent portion 34b of the planetary lever 34 to resist the biasing force of the tension spring 105, and
Is pressed to rotate counterclockwise. This interlocks with the rotating operation of the interlocking lever 103,
The sprocket 109 is kept in a state of retracting from the film feeding path, that is, an initial state. Therefore, the film 108 runs in the film feeding path toward the take-up spool 10, and the initial feeding of the film 108 is smoothly performed.

As in the first embodiment described above, since the rotational driving force of the drive motor 21 is transmitted to the take-up spool 10, the initial feeding operation of the film 108 proceeds and the leader portion of the film 108 is moved. Take-up spool 1
When it reaches 0, the winding operation of the film 108 is started.

Then, the planetary lever 34 is rotated counterclockwise in FIG. 5 against the biasing force of the tension spring 39, and the state shown in FIG. 5 changes to the state shown in FIG. At this time, the planetary lever 34 comes into contact with the stopper pin 58, its rotation is restricted, and the planetary lever 34 is held at this position by the rotational driving force of the sun gear 32.

Accordingly, the interlocking lever 103 is
To follow the bent portion 34b of the planetary lever 34,
Due to the urging force of the tension spring 105, it rotates clockwise in FIG. 5 and, as shown in FIG. 6, its rotation operation is stopped in the state of abutting against the stopper pin 106, and it is held at this position. It

The sprocket 109 advances to the film feeding path in association with the rotating operation of the interlocking lever 103, and the perforations 108b, 108b of the film 108,
Engage with 108c. As a result, the sprocket 109 follows the film winding operation, and the film 10
Two teeth are rotated for each frame of the image exposure unit 108a on the upper side 8. Then, as described above, the planetary gear 10
7, the substrate 114 makes one rotation per frame through the sun gear 101, the gear 111, and the gear 113, and the switch 115 controls the image exposure unit 108a at a predetermined position, that is, behind the photographing opening. When it is located at, the film feeding operation is stopped by the control circuit (not shown) installed in the camera body in response to this signal by switching from the on state to the off state. To be done. In this way, the film 108
The winding of one frame is performed.

At this time, the one-tooth gear 118 also rotates once for each frame, so that the frame number counter 116 is rotated by one tooth in the clockwise direction in FIG. 6 against the biasing force of the torsion spring 120. Since it is moved, the frame number counter for one frame is advanced.

Then, when the photographing of one frame is completed by the release switch (not shown) or the like provided in the camera body, the film winding operation up to the next frame is similarly restarted.

On the other hand, when a signal for starting the rewinding of the film 108 is generated due to the end of the photographing of all the frames of the film 108 or the like, as in the first embodiment described above,
The interlocking lever 103 is rotated counterclockwise in FIG. 6 against the biasing force of the tension spring 105 by the planetary lever 34. In conjunction with this, the sprocket 109 is retracted from the film feeding path and
Supply spool shaft 5Aa of the film cartridge 5A
Is rotated in the rewinding direction of the film 108, so that the film 108 becomes a film cartridge 5A.
It will be rewound inside.

As described above, according to the above-mentioned second embodiment, during the initial feeding operation of the film 108, the members such as the sprocket 109 which is the film-related member and the perforation detecting member are retracted from the film feeding path. Thus, the leader portion of the film 108 is smoothly sent out, and the film 108
During the winding operation of the film 10, the member such as the sprocket 109 is advanced to the film feeding path to move the film 10
By engaging with the perforations 108b and 108c of 8, the predetermined amount of film feeding is detected,
Thus, the winding amount of the film winding operation can be controlled, and further, when the film 108 is rewound, the sprocket 109 is retracted from the film feeding path to perform a smooth film rewinding operation. be able to.

7 and 8 are perspective views showing the film loading mechanism of the camera of the third embodiment of the present invention. FIG.
The state during the initial feeding operation of the film is also shown in FIG.
Shows respective states during the film winding operation. The third embodiment also has basically the same configuration as the cameras of the above-described first and second embodiments, and therefore the same members are denoted by the same reference numerals because the description thereof is redundant. The detailed description thereof will be omitted. Also,
7 and 8, in order to avoid complication of the drawings,
The basic members for feeding the film are omitted and reference is made to FIGS.

The film cartridge used in the third embodiment and the roll-shaped film accommodated therein are the same as those used in the second embodiment. Therefore, the members in the camera body are not provided with the members such as the magnetic head 51 and the pressing pad 56 of the first embodiment described above, as in the second embodiment described above.

As shown in FIG. 7, the gear train on the film feeding side, which is composed of the planetary lever 34 and the like, which constitutes the above-mentioned state changing member, is constructed in the same manner as in the first and second embodiments.

The bent portion 34b of the planet lever 34, which is the state changing member, is brought into contact with one arm of the interlocking lever 201, which is the interlocking member, by the biasing force of the tension spring 39, which is the planetary biasing means. And pressing this,
The interlocking lever 201 is rotatably provided at its base by a shaft 202 fixed to a fixing member (not shown) of the camera body. And the interlocking lever 2
In the middle of one arm of 01, a pin 201a that is planted toward the upper side and a fixed pin 203 that is planted on a fixing member (not shown) of the camera body are stretched. The tension spring 204, which is a biasing means, urges the tension spring 204 in the clockwise direction in FIG. 7, and the turning operation by the urging force of the tension spring 204 causes the bent portion 34b of the planet lever 34 to rotate.
It is regulated by abutting on a stopper pin 205 implanted in a fixing member (not shown) of the camera body in a state of not abutting against.

The interlocking lever 201 has a groove 201c having a parallelogram shape and a straight groove 201b on the other arm portion. Note that, in FIGS. 7 and 8, the parallelogram-shaped island portion 201d is illustrated as being separated, but in reality, the island portion 201d is integrally fixed to the interlocking lever 201. It has a structure to be installed.

Below the interlocking lever 201, a film-related member and a perforation detecting member,
Further, the driven pawl 206, which is a perforation engaging pawl member,
Is provided, and the driven claw 206 is located at a position facing the perforations 108b and 108c of the film 108.
Claw portion 206 shaped to also engage with 08b and 108c
It is composed of a plate-shaped member having a.

A pin 206b is provided at one end of the driven claw 206, and the pin 206b is slidably fitted in the linear groove 201b of the interlocking lever 201, while the driven member 206 is driven. A pin 206c is provided at the other end of the claw 206, and the pin 206c is slidably fitted in the parallelogrammatic groove 201c of the interlocking lever 201. Thereby, the driven claw 2
The pin 06 is swung by the pins 206b and 206c so as to draw a fixed locus with respect to the interlocking lever 201.

The driven claw 206 has a fixing pin 206d which is planted upward in the middle thereof and a fixing pin 207 which is planted on a fixing member (not shown) of the camera body.
It is urged toward the film patrone 5A side by a tension spring 208 stretched between the two, and is urged clockwise in FIG. 7 about the pin 206b as a rotation center.

On the other hand, in the vicinity of the driven claw 206,
The nail removing spring 209, which is a torsion spring wound around a boss 210 fixed to a fixing member (not shown) of the camera body, has its one end 209a fixed to a fixing member (not shown) of the camera body. It is engaged with a fixed pin 211, and the other end 209b is engaged with a pin 212 fixed to a fixing member (not shown) of the camera body.

Then, the driven claw 206 has the film 10
8, the other end 209b of the pawl disengaging spring 209 comes into contact with the pin 206e planted in the lower portion of the driven pawl 206. When the driven pawl 206 moves, the other end portion 20 of the pawl removing spring 209 is moved by the pin 206e.
By pressing 9b, energy is stored.

The driven claw 206 has the claw portion 20.
6a is a perforation 108b of the film 108,
108c, the amount of movement is determined by the length L on the long side of the parallelogram formed by the groove center line of the parallelogram groove 201c. The length L is set to be longer than the center-to-center distance d of the pair of perforations 108b and 108c of the film 108. That is, the length L of the long side of the parallelogrammatic groove 206c and the perforations 108b, 108.
The relationship with the center-to-center distance d of c is set so that L> d.

On the other hand, the charge lever 213 is rotatably supported by a shaft portion 213a provided on a fixing member (not shown) of the camera body, and a fork portion 213b provided at the tip of the charge lever 213 is Pin 206b of the driven claw 206
Slidably engaged with the shaft portion 213a.
Is a shutter charge mechanism, frame counter, film feed stop switch (not shown) installed in the camera body.
And so on.

The operation of the film loading mechanism of the camera of the third embodiment having the above-described structure when the film feeding operation is performed will be described below. The operation until the film 108 is sent out from the inside of the film cartridge 5A, that is, the initial sending operation of the film 108 is exactly the same as in the first and second embodiments described above, and therefore the description thereof is omitted. .

First, when the initial feeding operation of the film 108 is performed, as shown in FIG. 7, the interlocking lever 201 is pressed by the bent portion 34b of the planetary lever 34, and the urging force of the tension spring 204 is exerted. Against
In FIG. 7, it is pressed so as to rotate counterclockwise.
As a result, the driven claw 206 is in a state of being retracted from the film feeding path, that is, an initial state, in association with the rotating operation of the interlocking lever 201. Therefore, the film 108 runs in the film feeding path toward the take-up spool 10 and smoothly moves to the film 10.
Initial delivery of 8 is performed.

As in the first and second embodiments described above, since the rotational driving force of the drive motor 21 is transmitted to the take-up spool 10, the initial feeding operation of the film 108 proceeds and the film 108 When the leader reaches the take-up spool 10, the film 108 is started to be wound up.

Then, the planetary lever 34 is rotated counterclockwise in FIG. 7 against the biasing force of the tension spring 39, and the state shown in FIG. 7 changes to the state shown in FIG. At this time, the planetary lever 34 comes into contact with the stopper pin 58, its rotation is restricted, and the planetary lever 34 is held at this position by the rotational driving force of the sun gear 32.

Accordingly, the interlocking lever 201 is
To follow the bent portion 34b of the planetary lever 34,
By the urging force of the tension spring 204, it is rotated clockwise in FIG. 7 and, as shown in FIG. It

Then, as shown in FIG. 8, the winding operation of the film 108 is performed only by the winding spool 10 from this time point.

Further, as the film 108 is wound up, the claw portion 206a of the driven claw 206 engages with the perforation 108b on the preceding side of the perforations 108b and 108c of the film 108,
The film 108 is driven and moved toward the take-up spool 10 side against the biasing force of the tension spring 208.

At the same time, the pin 206e arranged at the lower portion of the driven pawl 206 has a tip of one end 209b of the pawl disengaging spring 209 when the driven pawl 206 is being driven. The pressure is stored by pressing the part. Then, as the driven claw 206 is driven,
When the pin 206c reaches the right end of the lower side of the parallelogrammatic groove 201c, the driven pawl 206 is biased by the biasing force of the pawl disengaging spring 209, and the pin 206c is shaped like the parallelogram. The groove 201c moves along the groove on the right side. Further, when the pin 206c reaches the upper end side of the right side portion of the parallelogrammatic groove 201c, the driven claw 206 is returned to the initial position by the urging force of the tension spring 208.

As described above, the relationship between the length L of the parallelogram groove 201c on the long side and the center-to-center distance d of the perforations 108b and 108c is L>
Since it is set to be d, the driven claw 206
Will be positioned behind this perforation 108c without engaging with the perforation 108c.

At the same time, since the fork portion 213b at the tip of the charge lever 213 is engaged with the pin 206b of the driven pawl 206, the charge lever 213 is interlocked with the driven operation of the driven pawl 206. Reciprocating operation is performed. In conjunction with this reciprocating operation, a shutter charge mechanism, a frame number meter, a film feed stop switch, etc. will operate (not shown).

When a signal for starting the rewinding of the film 108 is generated due to the end of the photographing of all the frames of the film 108, the interlocking lever 201 causes the planetary lever 201 to move, as in the first embodiment. It is rotated counterclockwise in FIG. 8 against the biasing force of the tension spring 204 by 34. In conjunction with this, the driven claw 206 is retracted from the film feeding path, and the supply spool shaft 5Aa of the film cartridge 5A is
By rotating in the rewinding direction of the film 108, the film 108 is rewound into the film cartridge 5A.

As described above, according to the third embodiment, during the initial feeding operation of the film 108, the film-related member, the perforation detecting member, and the perforation engaging claw member are provided from the film feeding path. By retracting certain driven pawls 206 and other members,
The leader portion of the film 108 is smoothly sent out, and at the time of the winding operation of the film 108, members such as the driven claw 206 are advanced to the film feeding path to form the perforations 108b and 108c of the film 108. By engaging with each other, a predetermined amount of film feeding can be detected, whereby the winding amount of the film winding operation can be controlled, and an operation such as shutter charging can be performed.

Furthermore, during the rewinding operation of the film 108, the smooth film rewinding operation can be performed by retracting the driven claw 206 from the film feeding path.

[Supplementary Notes] (1) A spool engaging member that engages the supply spool shaft of the loaded film cartridge and sends the film out of the cartridge, a take-up spool that winds the sent film, and the spool engagement. In a film loading mechanism of a film automatic loading type camera having a member and a drive source for driving a take-up spool, a drive gear connected to the drive source, a sun gear connected to the spool engaging member, and the sun. A planetary gear supported revolvably around a gear, a planetary urging means for urging the planetary gear in a direction in which the planetary gear meshes with the drive gear, and a film supporting the sun gear and the planetary gear, When sending out from the cartridge, make the planetary gear mesh with the drive gear, and further, the film is wound into the winding spool. When the spool engagement member is driven by the film and rotated, the state changing member configured to disengage the planetary gear from the drive gear and the state changing member are interlocked with each other to feed the film. A film-related member that can be retracted and advanced in a road, an interlocking member that includes the film-related member and is removably disposed in the state changing member, and the interlocking member that is the film-related member is a film. A film loading mechanism for a camera, comprising: a biasing unit that biases in a direction of advancing to a feeding path.

(2) In the film loading mechanism of the camera described in appendix 1, the film loading mechanism of the camera, wherein the film-related member is a perforation detection member that is detachably attached to the film perforation.

(3) In the film loading mechanism of the camera described in appendix 2, the perforation detection member is a sprocket rotatably supported on the interlocking member, and the interlocking member is the state changing member. A film loading mechanism for a camera configured to follow and operate.

(4) In the film loading mechanism of the camera described in appendix 2, the perforation detecting member is a perforation engaging claw member swingably supported on the interlocking member, and the interlocking member is the above-mentioned. A film loading mechanism for a camera configured to follow a state change member.

(5) In the film loading mechanism of the camera described in appendix 1, the film has a magnetic information recording section, and the film-related member writes or writes information in the magnetic information recording section. A film loading mechanism for a camera which is a magnetic head for reading information or a pressing pad member facing the magnetic head.

[0112]

As described above, according to the present invention, the fact that the film sent from the film cartridge is wound on the take-up spool can be directly detected by the state changing member which is interlocked with the film sending operation. Since this is done, there is no risk of malfunction due to false detection.

Further, the interlocking member for moving the pressing pad, the sprocket, the driven claw and the like, which are film-related members, to the position retracted from the film feeding path and the position where the film-related member advances to the film feeding path, Since a simple mechanism is used to interlock with the rotational movement of the state change member, the film-related members arranged on the film feeding path during the film winding operation, that is, the magnetic head or the pressing pad, the sprocket, the claw member, etc. By retracting the, you can smoothly feed the film,
It is possible to provide an inexpensive and miniaturized camera film loading mechanism capable of preventing a film loading failure.

[Brief description of drawings]

FIG. 1 is a perspective view showing an outline of a camera of a first embodiment of the present invention, showing an internal mechanism when the camera is viewed from the back side.

FIG. 2 is a perspective view showing a configuration of a film loading mechanism of the camera shown in FIG. 1 and is a view showing a state at the time of initial feeding operation of a film.

3 is a perspective view of a film loading mechanism of the camera shown in FIG. 1, showing a state during film winding operation.

FIG. 4 is a perspective view of the film loading mechanism of the camera of FIG. 1, showing a state during film rewinding operation.

FIG. 5 is a perspective view showing a configuration of a film loading mechanism of the camera of the second embodiment of the present invention, showing a state during an initial film feeding operation.

FIG. 6 is a perspective view showing a main part of the film loading device of the camera of FIG. 5, showing a state during film winding operation.

FIG. 7 is a perspective view showing a main part of a film loading device of a camera of a third embodiment of the present invention, showing a state during an initial film feeding operation.

8 is a perspective view showing a main part of the film loading device of the camera of FIG. 7, showing a state during film winding operation.

[Explanation of symbols]

 1 ... Camera body 2 ... Shooting opening 3 ... Patrone chamber 4 ... Film winding chamber 5, 5A ... Film cartridge 5a, 5Aa ... Supply spool shaft 6 ... Engaging member (spool engaging member ) 7,108 ...... Film 10 ...... Winding spool 13 ...... Rear cover 21 ...... Drive motor (drive source) 22 ...... Pinion gear 32 ...... Sun gear (sun gear) 34 ...... Planetary lever (state change member) ) 35 ... Planetary gear (planetary gear) 36 ... Intermediate gear (driving gear) 39 ... Extension spring (planetary biasing means) 51 ... Magnetic head 52, 103, 201 ... Interlocking lever (interlocking member) 55 ... ... torsion spring (biasing means) 56 ... pressing pad (film-related member) 105,204 ... tension spring (biasing means) 109 ... sprocket (film-related) Connection member) 206 ... Following claw (film-related member)

Claims (3)

[Claims] 1. A spool engaging member that engages a supply spool shaft of a loaded film cartridge and feeds a film from the inside of the film cartridge, a take-up spool that winds the fed film, and the spool engaging member and the winding. A film loading mechanism for a film automatic loading camera having a drive source for driving a take-up spool, comprising: a drive gear connected to the drive source; a sun gear connected to the spool engaging member; As a planetary gear supported revolvably, a planetary urging means for urging the planetary gear in a direction in which the planetary gear is meshed with the drive gear, while supporting the sun gear and the planetary gear, a film from the film cartridge At the time of feeding, the planetary gear should be engaged with the drive gear, and the film should be The state change member configured to disengage the planetary gear from the drive gear when the spool engagement member is driven by the film and rotated, and the film is interlocked with the state change member. A film loading mechanism for a camera, comprising: a film-related member that can be retracted and advanced in a feeding path. 2. An interlocking member that has the film-related member and is disengageably disposed in the state changing member; and urges the interlocking member in a direction in which the film-related member advances into a film feeding path. The film loading mechanism for a camera according to claim 1, further comprising: 3. The state changing member is configured to disengage the planetary gear from the drive gear when the film is rewound, and the state changing member is interlocked with the state changing member to remove the film related member from the film feed path. The film loading mechanism for the camera according to claim 1, wherein the film loading mechanism is retracted.