JP2795448B2 - camera - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a so-called drop-in loading system in which a film cartridge such as a film cartridge can be loaded only by dropping it into a cartridge loading room such as a cartridge room of a camera body. Camera.

[Prior Art] A drop-in loading camera is a camera in which film loading into a camera body can be performed by an extremely simple operation. A lid for film replacement is opened, and a cartridge loading chamber of the camera body, for example, When the patrone is simply dropped into the film patrone chamber and then the cover is closed, the film leader is automatically wound around the spool, and the film is wound up to the first frame.

On the other hand, in general, a new film is housed in a cylindrical container with the film leader wrapped around the outer periphery of the film cartridge, so that the curling of the film leader is strong.

For this reason, if the path for guiding the film to the film exposure surface is groove-shaped, the film leader becomes difficult to fit into the path along with the drop of the patrone, and some technique was required to load the film properly.

That is, as shown in FIG. 5, when the patrone 10 is dropped into a patrone chamber (not shown) formed in the camera body 1, if the film leader 11 is curled as shown in the figure, the film leader becomes Straight groove 5 to be fitted
Can not fit even if pressed against the end of In other words, the power to push the patrone into the leader 11
The film leader 11 is received in the camera body in a wide range, so that it becomes difficult to fit the film leader 11 into the groove 5 while deforming against the curling force.

Therefore, as such a measure, for example, U.S. Pat.
In No. 32453, an inclined surface is provided in the vertical direction along the opening of the groove portion, and the film leader portion is formed along the inclined surface, so that the leading portion of the leader portion is fitted into the groove portion. There have been proposals for fitting the curling while correcting it.

[Problem to be Solved by the Invention] However, in such a structure in which the curling of the film leader portion is fitted into the groove while correcting the curling of the film leader portion by using the inclined surface, unless the inclined surface is made considerably large, the film leader portion is not formed. There is a space problem that guidance cannot be performed effectively, and when miniaturizing the camera, the size of the opening for film exposure and the bottom of the camera body is reduced, and as a result, the inclined surface can be sufficiently removed. There was a disadvantage that there was no.

Further, since the conventional structure is a method in which the film is fitted into the groove from the side of the notch formed at the leading end of the film leader, the patrone enters the patrone chamber according to the notch. The film was easily fixed without any degree of freedom, and this also had an effect that the ease of drop loading of the film was not so much improved.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described conventional disadvantages and to enable a simple structure for drop-in loading of a film cartridge while correcting curling of a film leader portion without being affected by miniaturization of a camera body. A camera is provided.

Means for Solving the Problems To achieve the object of the present invention, the gist of the present invention is to provide a cartridge loading chamber in which a film cartridge is loaded in the axial direction of the cartridge, and a film loaded in the cartridge loading chamber. A groove for film loading of the cartridge, and a film insertion slot provided from the side of the camera body to the cartridge loading chamber so that the film cartridge can be loaded obliquely from the side of the camera body into the cartridge loading chamber from the axial direction of the cartridge. A camera having a notch perpendicular to the groove.

EXAMPLES Hereinafter, the present invention will be described in detail based on examples shown in the drawings.

FIG. 1 is an external perspective view showing an embodiment of a camera according to the present invention, and FIG. 2 is a schematic plan view for explaining a main part thereof.

FIG. 1 shows a state in which the camera body 1 is turned upside down and a bottom cover 12 for film exchange is opened. When the bottom cover 12 is opened, a patrone for housing a patrone 10 is provided at the bottom of the camera body 1. The chamber 2, the spool chamber 6 accommodating the spool 7, and the groove portion 5 forming a film transport path from the patrone chamber 2 to the spool chamber 6 are respectively opened so that the film can be dropped and loaded from the bottom side of the camera body. ,
When the bottom cover 12 is closed, a film winding mechanism (not shown) is operated, and automatic loading is automatically performed. The spool 7 is movably supported via a spool arm 8 so that a gap for film insertion is formed between the spool 7 and the inner wall surface of the spool chamber 6 when the bottom cover is opened. Since the film adopts a reverse winding method, the film leader 11
The notch formed at the front end of the bottom cover 12 is located so as to face the bottom cover 12.

At the bottom of the camera body 1 on the side of the film cartridge room, a notch 3 slightly wider than the diameter of the film cartridge 10 has a notch 3 from the cartridge room 2 to one side wall of the camera body 1 about 1/3 of the cartridge room 2. Formed at a depth of about
The bottom surface is at a level lower than the opening edge of the groove 5.

Further, the rear wall surface 4 of the notch 3 is cut to a position behind the groove 5 and is formed as an inclined surface that extends rearward toward the bottom. It is connected to the rear wall as shown in FIG.

That is, as shown in FIG. 3, when the patrone 10 is not dropped directly into the patrone chamber 2 but is inserted from the lateral direction along the notch 3, the bottom surface of the notch 3 is closer to the opening edge of the groove 5. Is also at the low level, so the film leader
The side edge of 11 comes into contact with the groove 5, and the patrone 10 naturally naturally becomes obliquely inclined.

At this time, the film leader section 11
In the figure, the camera is shown upside down, so that the lower side in the figure is expressed as the upper side.) Only one point 11a is in contact with the opening edge of the groove 5 and the film leader ahead of it. Is curled outward from the bottom of the camera body,
A part of the patrone 10 is protruding from the camera body 1.

On the other hand, when the patrone 10 is inserted, the leader portion 11 is curled and the film near the drawer outlet of the patrone is curved backward from the film exposure position, but the curved portion is guided to the wall surface 4 after the inclination. The leader part 11 is naturally guided into the groove part 5 while falling, and as shown in FIG. 4, the patrone 10 is slightly moved clockwise in FIG. By rotating, the contact point 11a with the opening edge of the groove 5 is moved toward the leading end side of the leader portion, and the effect of the notch portion 3 described above facilitates film loading.

Then, when the patrone 10 is pushed so as to stand, the film reader portion 11 is intensively applied with a force for pushing the patrone 10 to the one point 11a because the one point 11a is in contact with the opening edge of the groove 5. The leader 11 is easily deformed and corrected, so that the leader 11 fits into the groove 5 and the patrone 10 is dropped into the patrone chamber 2 at the same time.

[Effects of the Invention] According to the present invention, it is not necessary to provide an inclined surface for inclining a film as in the related art, so that drop-in loading can be achieved without being affected by downsizing of a camera. The film cartridge can be dropped and loaded into the cartridge chamber by a simple operation while correcting the film leader portion by the action of (1).

[Brief description of the drawings]

FIG. 1 is an external perspective view showing an embodiment of a camera according to the present invention, FIG. 2 is a schematic plan view for explaining main parts thereof, FIG. 3 is a cross-sectional view showing a state when a film cartridge is inserted, FIG. 4 is a plan view for explaining the function of the inclined rear wall surface, and FIG. 5 is a plan view of a conventional camera. 1: Camera body, 2: Patrone room 3: Notch, 4: Rear wall 5: Groove, 6: Spool room 7: Spool, 8: Spool arm 10: Film patrone 11: Film leader 12: Bottom cover.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G03B 17/28

Claims (1)

(57) [Claims] A cartridge loading chamber in which a film cartridge is loaded in an axial direction of the cartridge; a groove for loading a film of a film cartridge loaded in the cartridge loading chamber; A camera provided with a notch perpendicular to the film insertion groove provided from the side of the camera body to the cartridge loading chamber so that the cartridge loading chamber can be loaded obliquely from the side of the camera body.