JPH05119391A - Camera - Google Patents

Abstract

PURPOSE:To easily take out a film cartridge from a cartridge chamber and to prevent the cartridge from dropping out of a camera inadvertently in the case of taking it out. CONSTITUTION:This camera is provided with pressing means 14 and 17 which press the film cartridge 1 loaded in the cartridge chamber in a direction where it is ejected to the outside of the cartridge chamber, and a preventing means 18 which prevents the film cartridge 1 from falling down from the cartridge chamber by being pressed by the means 14, 17 in a merginal state where a part of the film cartridge 1 is projected from the camera.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a camera having a cartridge chamber in which a film cartridge is loaded in its axial direction.

[0002]

2. Description of the Related Art Recently, as a new type of film cartridge, the following has been proposed in US Pat. No. 4,834,306.

A film passing slit, a film whose one end is fixed to a film supply spool, and which is wound around the film supply spool, are arranged coaxially with the film supply spool, and spread in the radial direction of the outermost circumference of the film. A pressing member that is regulated by a projection and prevents the outermost periphery of the film from substantially contacting the inner wall of the film cartridge, and a part of the pressing member is deformed to prevent the pressing member from being radially restricted. A release member for continuously releasing the outer peripheral portion and a guide member for guiding the portion of the film released from the regulation to the film passage slit are provided, and the film supply spool is driven by engaging with the fork of the camera. , Slip between the outer circumference of the film and the holding member due to the expansion of the outermost circumference due to the loosening of the film caused by the rotation of the film supply spool in the film extrusion direction And no state, giving the extrusion direction of the driving force to the film, the film force - is obtained by allowing the discharge of film from the cartridge.

In a camera using such a film cartridge, as shown in FIG. 8, the film cartridge 1 can be opened and closed with a minimum size that can be loaded into the cartridge chamber 2. The film cartridge 1 can be loaded into the cartridge chamber 2 and the film can be fed thereafter only by opening and closing the cartridge lid 3.
In the figure, 4 is a finder, 5 is a taking lens, and 6 is a stroboscopic light emitting unit.

[0005]

However, in the above-mentioned conventional example, the film cartridge 1 is placed in the cartridge chamber 2.
Since the member (cartridge lid 3) that opens and closes when it is loaded into the camera is small, it is easy to make the camera waterproof and to prevent dust from entering the camera. -When removing from the ridge chamber 3,
It is difficult to put a finger in the cartridge chamber 2 and it is difficult to take it out.

In consideration of the above points, a method of pre-energizing the film cartridge 1 from the cartridge chamber 3 by an elastic member such as a spring may be considered. When the lid 3 is opened, the film cartridge 1 may be accidentally dropped. On this occasion,
Depending on the drop location, it may not be possible to collect the film, and you will waste the film you took.

In view of the above points, the object of the present invention is to make it easy to take out the film cartridge from the cartridge chamber and prevent the film cartridge from being accidentally dropped from the camera. Is to provide.

[0008]

SUMMARY OF THE INVENTION According to the present invention, a biasing means for biasing a film cartridge loaded in a cartridge chamber in the direction of discharging the film cartridge to the outside of the cartridge chamber, and the biasing means. There is provided a blocking means for blocking the film cartridge from jumping out of the cartridge chamber due to the bias when the film cartridge is partially projected from the camera.

[0009]

The urging means urges the film cartridge to the outside of the cartridge chamber by opening the cartridge lid, and the blocking means urges the film cartridge by the urging means. It prevents the film cartridge from jumping out of the ridge chamber with a part of the film cartridge protruding from the camera so that it does not accidentally fall from the camera.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 3 are views showing the construction of the essential parts of a first embodiment of the present invention.

In these figures, 1 is a film cartridge, 2 is a cartridge chamber formed in the camera body,
3 is a cartridge lid rotatably attached to the camera body at 3a, and 7 is a cartridge in which the elongated holes 7a and 7b are slidably attached to projections 8 and 9 from the camera body. The lid opening / closing knob allows the knob portion 7c to project from the exterior cover 11 of the camera for manual operation, and the claw portion 7d can be engaged with the groove 3b of the cartridge lid 3. Reference numeral 10 denotes a spring, one end of which is attached to the camera body and the other end of which is attached to the cartridge lid opening / closing knob 7 to bias the cartridge lid opening / closing knob 7 in the direction of arrow A.

Reference numeral 12 is a fork for engaging a film supply spool (not shown) in the film cartridge 1 and transmitting a rotational driving force thereto, and 13 is the fork 1 described above.
2 is a fork gear which rotates integrally with 2 and meshes with a gear of a known film feeding mechanism (not shown), and 14 is a projection 15 and 16 from the camera body, and its elongated holes 14a and 14b are slidably fitted. The protruding portion 14c is an extruding lever of the film cartridge 1 which can come into contact with the film cartridge 1.
17 is a lever 14 that pushes out one end to the camera body and the other end.
And push the extrusion lever 14 into the direction of arrow B.
A spring for urging the film cartridge 1 with the pushing lever 14 and the spring 17 in the urging direction.
A means for discharging from the trig chamber 2 is configured. 18 is a protrusion 19 and 20 from the camera body and has elongated holes 18a and 18
b is a latch lever slidably fitted to the arm 1
Reference numeral 8c is a flexible structure or material, and the sloped portions 18e and 18d are positioned so as to be able to contact the film cartridge 1.

In the above structure, FIG. 1 shows a film cover.
The cartridge lid 3 is opened to load the cartridge 1. When the film cartridge 1 is loaded from this state, the film cartridge 1 is put into the cartridge chamber 2 according to the arrow E. Go At this time, the film car
The ridge 1 is engaged with the inclined surface 18d of the locking lever 18 and pushes the locking lever 18 upward in FIG.
When the arm 18 reaches a position where the upward movement of the arm 18 is restricted, the arm 18c is bent in the direction of the arrow C to release the engagement. As a result, the front end portion 18f of the locking lever 18 is attached to the film cover.
It comes into contact with the side surface of the trench 1. When the film cartridge 1 is further pushed up, the upper end of the film cartridge 1 is engaged with the convex portion 14c of the pushing lever 14 and the spring 17
The pushing lever 14 is pushed upward against the urging force of. Then, a film supply spool (not shown) comes into engagement with the fork 12. When the lower end of the film cartridge 1 passes the tip portion 18f of the locking lever 18 in the final stage of pushing up the film cartridge 1,
The arm portion 18c of the locking lever 18 is returned in the direction opposite to the arrow C, and the lower end of the film cartridge 1 and the slope portion 18e are in a positional relationship capable of engaging.

Next, when the cartridge lid 3 is closed in the direction of arrow D, the cartridge lid 3 comes into contact with the lower end portion 18g of the locking lever 18 and moves downward in the locking lever 18. The movement of the cartridge lid opening / closing knob 7 is regulated while the movement is restricted.
Since d engages with the groove 3b, the cartridge lid 3 is locked at the position where the cartridge chamber 2 is closed. At this time, the convex portion 3
c can restrain the downward movement of the film cartridge 1.

FIG. 2 shows the state at this time.

Next, a case where the cartridge is taken out from the state shown in FIG. 2 will be described.

The knob portion 7 of the cartridge lid opening / closing knob 7
When c is moved in the direction opposite to the arrow A against the biasing force of the spring 10, the engagement between the groove 3b of the cartridge lid 3 and the claw portion 7d is released, and the cartridge lid 3 is indicated by the arrow D ( (See Figure 1)
The cartridge chamber 2 is opened by moving in the opposite direction. As a result, the extrusion lever 14 becomes a film cartridge 1.
Is pushed down by the urging force of the spring 17, but the film cartridge 1 is locked by the sloped portion 18e of the locking lever 18 when a part of the film cartridge 1 comes out of the camera main body, so that the film cartridge 1 is further pushed out carelessly. I can't come.

FIG. 3 shows the state at this time.

When taking out the film cartridge 1 from this state, the user grasps the portion of the film cartridge 1 protruding from the camera and bends the arm portion 18c of the locking lever 18. Take it out of the camera.

FIG. 4 is a diagram showing a second embodiment of the present invention, in which parts similar to those of the first embodiment and parts having the same functions are designated by the same reference numerals.

In this embodiment, when the film cartridge 1 is taken out of the camera, a part of the film cartridge 1 is deformed so that the film cartridge 1 is unlocked during the taking out. is there.

In FIG. 4, reference numeral 51a is a claw portion, and 51b is an arm portion integrally formed with the film cartridge 1 and having a flexible property. The cartridge lid 3 is opened to open the film cartridge 1. When the film is discharged to the outside of the camera by the extrusion lever 14, a projection from the camera body is formed at a position where a part of the lower end of the film cartridge 1 is outside the camera, that is, a position where the film cartridge 1 is pushed down by a distance L1. 52 is the claw portion 51a
Is locked and further discharge is temporarily stopped. After that, the user holds the film cartridge 1 and forcibly takes it out of the cartridge chamber 3. At this time, the arm portion 51b bends and the claw portion 51a and the projection portion 52 are released from the engagement.

FIGS. 5 to 7 are views showing a third embodiment of the present invention, and the same parts and parts having the same functions as those of the first and second embodiments are designated by the same reference numerals.

In this embodiment, the use condition indicating member 54 is different in that the indication as to whether or not the film is used is changed depending on whether the film is put into the cartridge chamber 2 or taken out from the cartridge chamber 2.
It is an example of application to the film cartridge 1 having a projection 52 provided on the camera body for locking the film cartridge 1 at a position where it is partially discharged from the cartridge chamber 2 to the outside of the camera. And the use state display member 54 are engaged with each other, and the position of the use state display member 53 is displaced when the user forcibly takes out the film cartridge 1 thereafter. Is.

The use state display member 53 is attached to the groove portion 1e of the film cartridge 1 so as to be movable in the direction of arrow E, and the claw portion 53a thereof is engaged with the V grooves 1c and 1d of the film cartridge 1. Is possible and their grooves 1c, 1
I feel a click by falling to d. Further, the usage status display member 53 is formed of a flexible material.

Reference numeral 53b is a display unit, which indicates whether the film is used or not, depending on the position of the use state display member 53, as shown in FIG.

When the film cartridge 1 is put into the cartridge chamber 2, the display portion 53b is deformed by itself and gets over the projection 52 of the camera body.

When the film cartridge 1 is discharged from the cartridge chamber 2, the display portion 53b is engaged with the protrusion 52 of the camera body, and the V groove 1 of the film cartridge 1 is also engaged.
Since the d and the claw portion 53a are engaged with each other, the film cartridge 1 has a part of the film cartridge 1 at this position, that is, at the position where the display portion 53b and the projection 52 of the camera body are engaged with each other. Once stopped, stop once.

After that, when the user forcibly takes it out, the use state display member 53 moves upward, and the indicator 22b indicates that the film has been used (film cover).
When the film cartridge 1 is further pulled out, the display portion 53b is deformed and the engagement with the projection 52 of the camera body is released. Then, the film cartridge 1 can be discharged out of the camera.

According to each of the above embodiments, the extrusion lever 14 for urging the film cartridge 1 in the direction of discharging it to the outside of the cartridge chamber 2, and the film cartridge by the urging of the extrusion lever 14. During the discharging of the cartridge 1 to the outside of the cartridge chamber 3, a locking lever 18 for locking the discharging of the film cartridge 1 with a part of the film cartridge 1 outside the camera. Since (in the first embodiment) and the like are provided, the film cartridge 1 can be easily taken out from the cartridge chamber 3 while the cartridge lid 3 having the minimum necessary size is provided. Moreover, it is possible to prevent the film cartridge 1 from being accidentally dropped down.

[0031]

As described above, according to the present invention,
The film cartridge loaded in the cartridge chamber,
An urging means for urging the cartridge in the direction of discharging it to the outside of the cartridge chamber and a protrusion of the film cartridge from the cartridge chamber due to the urging of the urging means, part of the film cartridge from the camera A blocking means is provided to prevent the film cartridge from protruding in a projecting state. I try not to accidentally drop it from the camera. Therefore, it is possible to easily take out the film cartridge from the cartridge chamber, and at this time, it is possible to prevent the film cartridge from being accidentally dropped from the camera.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a camera showing a configuration of main parts according to a first embodiment of the present invention.

2 is a longitudinal sectional view of the camera showing a state in which a film cartridge is loaded from the state of FIG.

FIG. 3 is a vertical sectional view of a camera showing a state when a film cartridge is taken out from the state of FIG.

FIG. 4 is a vertical sectional view of a camera showing a configuration of a main part according to a second embodiment of the present invention.

FIG. 5 is a side view showing a partially broken film cartridge used in a third embodiment of the present invention.

FIG. 6 is a side view showing a film cartridge used in a third embodiment of the present invention.

FIG. 7 is a vertical sectional view of a camera showing a configuration of a main part of a third embodiment of the present invention.

FIG. 8 is a perspective view showing how a conventional camera of this type is loaded with a film cartridge.

[Explanation of sign]

 1 film cartridge 2 cartridge chamber 3 cartridge lid 12 fork 14 extrusion lever 17 spring 18 locking lever 52 projection 53

Claims (1)

[Claims] 1. A camera having a cartridge chamber in which a film cartridge is loaded in the axial direction thereof, wherein the film cartridge loaded in the cartridge chamber is discharged to the outside of the cartridge chamber. Urging means for urging the film cartridge and the blocking means for preventing the film cartridge from jumping out of the cartridge chamber due to the urging of the urging means in a state where a part of the film cartridge projects from the camera. A camera characterized by having and.