JPS5868731A - Easy loading camera - Google Patents

Abstract

PURPOSE:To facilitate leading of a patrone by providing a cutter on opposite side of the patrone loading chamber with an opening for exposure between, and loading a patrone from the bottom of a camera. CONSTITUTION:The camera is provided with a rear cover 4 opened and closed as shown by the arrow A by a hinge 3, and a patrone is inserted in the direction of hte axis P2. A patrone loading chamber 5, an inside guide member 14 and an outside guide member 15 are installed on the camera body side. A film pressing plate 22 and a movable edge 13 that cuts the leader F of a film when it is too long jointly with a fixed edge 12 on the body side are installed on the rear cover. By this way, movable parts of the patrone loading mechanism can be decreased, and the structure becomes simple.

Description

[Detailed Description of the Invention] 35 11 which is currently widely used as a practical film
1. Concerning a simple loading camera that has been improved to make it easier to load cartridges for Ill size film.

Conventionally, various cameras have been provided that simplify cartridge loading and film winding operations. For example, Japanese Patent Application Laid-Open No. 5-143549 discloses a simple loading camera in which one bottom surface of a cartridge loading chamber is opened, and a batrone is loaded in the axial direction from this opening.

In this easily loaded camera, the cartridge is loaded into a cartridge storage body that is formed to protrude from the camera body, and after loading the cartridge, the cartridge is integrated with the camera body. 3. When cutting, the tip of the film league is cut by a cutter.
3. However, as mentioned above, if the part that houses the cartridge is not fixed within the camera body but is formed to move relative to the camera body, it is natural that the part that accommodates the cartridge will be The number of movable parts such as the opening/closing cover that locks the camera increases, making the camera structure complicated.1 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a simple loading camera with a simple structure. It is.

The simple loading camera of the present invention is a camera in which a cartridge is loaded along its axial direction, and a cartridge loading chamber and a member for guiding a film leader are formed in the camera body, and the loading chamber is is characterized in that a cutter means is provided on the opposite side of the exposure phase open [-1], and the cartridge is loaded from the bottom of the camera.

't6(
・When the cartridge is loaded in the cartridge loading chamber in the long sleeve direction, the film leader pulled out from the cartridge is extended along the back of the camera body by the action of the film leader guide member and is transported as it is. is set to Therefore, a known film feeding means is provided which engages the perforation of the film and leader set in the feeding position as described above, and the film winding chamber is equipped with film winding units il+ and il+. If a known automatic film winding mechanism is provided, when the film winding operation is performed after loading the cartridge, the film will be fed in the IF position and automatically wound onto the film winding shaft. become.

Although the amount of film leader that can be pulled out varies depending on the manufacturer, most film leaders for 35 m/m film currently on the general market in the 11゜ industry are capable of pulling out only when a cartridge is loaded into the cartridge loading chamber. , this cartridge is placed on the opposite side of chamber 11 and exposure phase opening 11, and is set to a length that does not reach the upper chamber, but a cartridge is loaded inside. Sometimes, the film leader part is set so long that the leading end touches the winding chamber.In the simple loading camera of the present invention, such a long film is used. In this case, the tip of the film leader is cut by the film leader cutter described above, and the film leader can enter the winding chamber 1. If a general film other than this film is used, the film leader is cut off by the film leader cutter described above. Since the cutter cannot be reached, the film is not cut, and the film is sent into the winding chamber from the leading edge of the film leader.

As described below, in the simple loading camera of the present invention, the film leader is not cut except in certain special cases of film use.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a simple loading camera 1 according to an embodiment of the present invention.
This is a perspective view showing the bottom of the camera with the back cover open, and Figure 2 shows a detailed view of the back of the camera body near the exposure opening by partially cutting away the same easily loaded camera. -- It is shown in detail. In FIG. 1, the reference numeral P indicates a conventional 35-person size hatrone loaded into the camera 1. This cartridge P consists of a cylindrical cartridge main body P1, a cartridge 41111P2, and a film outlet P3 that slightly protrudes tangentially or approximately tangentially from the cartridge main body P1. A predetermined amount (varies depending on the film manufacturer) of the film leader is drawn out from the cartridge P drawer [1P3]. A camera 1, a camera body 2 having a lens and a central mechanism of the camera, and a hinge 3 near the top of the camera body 2 are pivoted to be able to open and close in the direction of the arrow. J.S.
: Consists of m4. A cartridge loading chamber 5 consisting of a generally cylindrical space is provided on the right side of the camera body 2 in the figure, that is, on the photographer's left hand side when the camera 1 is supported in a shooting position. This cartridge loading chamber 5 is opened in Kff1i (] of Punomela Hotei 2
[Ding] Further, the river side is not completely closed, and a slit 8 is provided that opens in seven directions on the back surface of the camera body 2. An exposure opening 9 is provided on the back surface 7 of the camera body 2, and a winding chamber 10 is formed on the opposite side of the cartridge loading chamber across the exposure opening 9.

In the winding chamber 10, there is provided a film winding shaft 1 equipped with a known automatic film winding mechanism (not shown). In addition, the winding chamber 10 is placed in the winding 5 position.
A fixed blade 12 extending over the entire height is provided, and a movable blade 13 is fixed to the inner surface of the back cover 4, which slides against the fixed blade 12 to form a cutter when the back cover 4 is closed. . The bottom portion of the back surface 7 of the camera body 2 connected to the bottom surface 6 is an inner guide member 14 whose upper and lower portions are chamfered as shown in the cross-sectional shape in FIG. A slight gap is left between the inner guide member 14 and the exposure dose [1
An outer guide member 15 is provided at a position covering the periphery of the inner guide member 14, with an end surface 15a on the bottom side of the camera substantially aligned with the edges 1, 4a of the inner guide member 14. This outer guide member 5 has an opening 151) in the center, and in this opening 5b there is a resilient support piece 16a, 1.61 formed integrally with the outer guide member 15. ), a film pressure plate 17 supported by 16c is disposed. This film pressure plate 17 has a recess 17a in the center of the top side of the camera (direction F in the figure), and a protrusion 18 provided on one side of the exposure opening 9 on the back surface 7 of the camera body 2 is located in this recess. 17a
Get into it. At the upper right side of the exposure opening 90 in the figure, a film feeding device] 9 having a perforation engaging claw 19a is provided.

At a position close to the cartridge loading chamber 5 on the back surface 7, near the center in the two-tooth direction, there is a tongue-1-edge defining member 20, and the upper edge of the tongue-1 edge defining member 20 in the figure is smaller than the upper edge defining member 20. A position regulation release member 21 protrudes in the direction of the outer guide member 15.

The functions of these parts 4 and 4 will be explained in detail in the rear section.
i 4! :Y'lσ) In addition to the above-mentioned movable blade] 3 on the inner surface, there is a pressure plate made of an elastic member such as spring steel at a position where it comes into contact with the filler pressure plate 17 when the Ds, &.1 is closed. A protrusion 23 is provided at a position where the pressing member 22 comes into contact with the position regulation release member 21. Further, an arm-shaped film leader lower edge defining member 24 made of a rigid material is fixed at a position closer to the bottom surface of the camera than the protrusion 23 . The back cover 11 is in a closed state in which the back cover of the camera body 2 is covered by an engaging portion (not shown) engaging a lock claw 26 operated by a slide button 25 provided on the bottom surface 6 of the camera body 2. maintain.

Hereinafter, the operation of the simple loading camera of this embodiment having the above structure will be explained in detail. The slit 8 of the cartridge loading chamber 5 extends substantially tangentially to the cylindrical contour of the loading chamber, and is continuously provided in the gap between the inner guide member 1 and the outer guide member 15. Therefore, a protrusion 1s51) is formed on the peripheral wall forming the cartridge loading chamber 5. Therefore, the cartridge can be loaded only when the recess formed by the film outlet P3 of the cartridge P and the main body P engages with the protrusion 5b formed by the slit 8.
Therefore, the loading direction state of the cartridge P is maintained.

- From the protrusion 51), an inner guide member 14 extending parallel to the focal plane of the film at the time of photographing extends toward the winding chamber 10, and this inner guide member 14 is spaced between the outer guide member 15 and the outer guide member 15. A gap is formed extending in the longitudinal direction of the camera. When the cartridge P is loaded, even if the film leader T is likely to wrap around the outer circumferential surface of the cartridge P due to its curling characteristics, the recessed portion of the cartridge P will be the protruding portion 5I). The film reader F is inserted into the cartridge loading chamber 5 in a state where it is engaged with the cartridge I).
The edges abut against the edges 14a of the inner guide member 14, and are successively extended in the longitudinal direction of the camera along the face of the camera and dropped into the gap between the two guide members. In this way, the cartridge P can be easily loaded.

Here, the bottom surface 6 of the portion forming the protrusion 51)
As shown in the figure, the protrusion 5I] is formed to be gradually higher toward the tip side, and is continuous with the edge 5a of the protrusion 5b on the slit 8 side of the inner guide member 14. Since the edge 14a is formed substantially horizontally or gradually becomes lower toward the pressure in the figure, the film leader F can be smoothly extended along these continuous edges 5a, 14a. Moreover, this edge 14a is the third
As the cross-sectional shape is shown in the figure, it is chamfered and rounded, so the film leader T='
- The side edge f+ (it is on the lower side in the figure, but it is located on one side when the camera is used, so it is called this way) and the perforation p are not caught. Furthermore, nine tabs are attached to the lower side edge 141) of the inner guide member 14 in the figure, so when you pull out the film after shooting, the film can be removed easily.
It will not get caught on the side edge f2 or the side edge 141 of the J-ta[''. The chamfering process is performed using the perforation engaging claw 1 of the film feeding device 19.
．． 9a, to prevent the film litter from getting caught in the bar 7 oration engaging claw 19a. Such chamfering is not limited to the inner guide member 14 and the perforation engaging claw 1.9a described above, but it is effective if it is applied to all the edges facing the film leader F when loading and unloading the cartridge. . Note that this chamfering process may be performed not only by cutting the nine edges as described above, but also by cutting the edges along the surface line.

Further, the film feeding device 19 is formed so that its perforation engaging claw 1.9a does not protrude further to the rear of the camera than the outer surface of the inner guide member 14 (surface 1 in FIG. 3). The perforation p, upper edge fx, and lower side ifz of the film leader F are not caught by the perforation engaging claw 19a when loading or unloading the cartridge.

First, the film pressure plate 17 disposed inside the outer guide member 15 on the back side of the film leader has an inner surface that is connected to the outer guide member 15.
Since the film leader F is arranged so as to be aligned with the inner surface of the outer guide member 15, the film leader F will not be caught on the outer guide member 15 side.

The lower surface 18a (upper surface in the figure) of the protrusion 18 that has entered the recess 17a of the film pressure plate 17 is set in a position where it comes into contact with the upper edge f1 of the film and maintains the film in the 11E L feeding position. The film leader F inserted between the inner guide member 14 and the outer guide member 15 is
Even if the cartridge P is pulled out from the drawer opening P3 downward in the figure, the protrusion 18 will not fall above the camera than the lower surface 18a of the protrusion 18. Note that the tip end 181 of this protrusion 18 facing the outer guide member 15 extends beyond the inner surface of the film pressure plate 17 or to a position where it is aligned with the inner surface.
8 and the film pressure plate 17 (the upper side Rf+ of the film leader F is inserted from above in the figure while being tilted as shown above).
C. The posture is corrected by coming into contact with the lower surface +8a. As described above, the protrusion 18 functions as a defining member that defines the position of the film leader F on the upper side of the camera, but this film leader upper edge defining member is not limited to the protrusion 18 as described above, for example. It can also be formed from a bottle or the like planted on the back surface 7 of the rear side 2 of the camera.

After the cartridge P is loaded into the cartridge loading chamber 5 as described above and the film leader F is extended, the back cartridge L (
At this point, the film leader F for general film is pulled out from the cartridge P to such an extent that its tip is located between the inner guide member 14 and the outer guide part (15), so that the film is closed as will be explained later. When the film leader F is fed, the leading end of the film leader F is curled into the winding chamber 10 due to its own curling behavior, and is wound around the film winding shaft 11 by the automatic film winding mechanism. One film manufacturer, Filno,
Film leader F has been pulled out for quite a long time, so
The tip of the film leader F extends outward beyond the winding chamber 10. However, the tip of the film leader 1 that has passed beyond the winding chamber 10 is cut off by the solid blade 12 and the movable blade 13 when the back cover 4 is closed.
However, the tip of the film leader F after cutting enters the winding chamber 10 in the same way as for general film 7, -
It comes to be captured by the above-mentioned automatic winding mechanism 14). The fixed blade 12 and the movable blade 13, which function in this manner, do not cut the leading edge of the film league when a general film is used. In this embodiment, the fixed blade 12 and the movable blade 13 are fixed completely independently of each other, but for example, the fixed blade 12 and the movable blade 13 are pivotally supported on the scissors 5, and the back cover 4 is
It may also be something that also acts as a support means for.

Since the above-mentioned upper edge "l" of the IM refilter printer is defined by the protrusion 18, even if the film leader F is tilted downward in the drawing from the cartridge P drawer [1P3], ”&t-1[-, but on the contrary, the film leader F is
If the camera is tilted upward in the figure, the film leader edge defining portion 2.1, which passes through the gap 27 when the camera back 4 is closed, is fixed to the inner surface of the camera back 4.
Push the film leader downwards in the figure by hitting the lower edge f2 of the film leader F and set it in the feeding position.

The above film leader lower edge regulation 1Xl) (A' 24 is
Film leader F) Lower side i f2 K Patroey P
Drawer 1-11):! Since the film leader F is provided at a position close to the film leader F so that it touches the film leader F, the film leader F will not be bent at the waist of the film reader. In addition, since the film leader lower edge defining member 24 is formed into a long arm shape as shown in the figure, the film leader F is attached to the film pressure plate 1 which will be described later.
When the film leader F is still in a freely movable state before being pressed by the cutter 7 or being pinched by the cutter described above, the film leader F comes into contact with the film leader and can easily keep the film leader F still.

Among the films currently available on the market, there are some films in which the amount by which the film leader is pulled out is so small that almost only the tongue at the tip of the film leader is pulled out from the cartridge. When such a film is used, the upper edge f+ of the film leader F does not reach the protrusion 183;
Once the film leader F is tilted downward in the drawing, this tilt cannot be corrected by the protrusion 18. However, in this embodiment, the above-mentioned upper edge definition of the tongue part 161 member 20 corrects the downward inclination of the film leader rr as described above.

The tongue upper edge defining member 20 and its surrounding mechanisms will be described below. FIG. 1 shows the mechanism around the tongue upper edge defining member 20. The tongue upper edge defining member 20 and the position regulating release portion 21 are provided on one 17-shape σ] movable arm 28-H. This b] moving arm 2
8 has a slide hole 29 extending in the left-right direction in the figure, and is supported by two pins 30 passed through the slide hole 29 so as to be movable in the left-right direction in the figure. Movable arm 1/2
A protrusion 31 is provided on the upper part of the movable arm 8, and a spring 32 is hung on the protrusion 31 to urge the movable arm 28 to the right in the figure, that is, toward the back of the camera. [TII] A contact portion 5 provided at one end of the hatron position detection member 34 can come into contact with the right side in the figure of the protrusion 33 in the f direction provided at the left end in the figure of the movable boom 28. 8. Patroline position detection member; (4 is supported by a pin 36 so as to be rotatable about the bin 36, and - a spring 38 hung on a pin 37 at the base of the abutting portion 35 detects the position of the pin 36; 36
It is biased counterclockwise in the figure, centering on . This spring 3
The biasing force 8 is set larger than the biasing force of the spring 32, and when the protrusion 33 is in contact with the contact portion 35, the movable arm 28 moves to the right in the figure. (〜obtainai7, pa)・low 4. The lower part of the position detection member 34 is
As shown in the figure, the cartridge is inserted obliquely into the cartridge loading chamber 5. When a cartridge is loaded into the cartridge loading chamber 5, the cartridge position detection member 34 is pushed by the end of the cartridge and rotates clockwise in the figure against the force of the spring 38. Then, this cartridge position detection member 34
Since the abutting portion 35 moves away from the projection 33 to the right in the figure, the movable arm 28 moves to the right in the figure by the biasing force of the spring 32. Therefore, the tongue upper edge defining member 20 protrudes between the back surface 7 of the camera body 2 and the outer guide portion 15, as shown by the two-dot chain line in the figure. The upper end surface 20a of this tongue upper edge defining member 20 is located at the cutout side edge f3 of the tongue at the tip of the film leader I('' in the F-regular feeding direction).
(See Figure 1).If the short film leader extended through the sulin l-8 is tilted downward from the outlet P3 in the figure, the upper end surface 20a will be - [Note: Correct this inclination by contacting the J-1111 edge 3. After that, when the back cover 4 of the camera is closed, the protrusion 23 provided on the inner surface of the back cover 4 pushes the release member 21 to the left in FIG. The arm 28 moves 1il to the left in the figure against the biasing force of the spring 32. IC movement 1~, tongue upper edge defining member 20
1, which also leaves the position where it contacts the tongue of the film leader.
Therefore, from now on, the film leader -1-description 7r
, (l) The film can be fed without being caught by the upper edge defining part 2 ( ).As shown in FIG. The top edge defining member 20 is formed so as to be in contact with the cartridge at a position slightly lower than the upper end surface 20a (i.e., on the top surface side of the camera), and the cartridge is connected to the cartridge from which the film leader is extended.
When the film is loaded, the tongue upper edge defining member 20 protrudes from the back surface 7 after the upper edge f1 of the film leader F has passed. Therefore, in such a case, the upper edge f1 of the film leader F will not come into contact with the upper end surface 20a of the tongue upper edge defining member 20, thereby making it impossible to load the cartridge.

When the back cover 4 is closed, the film leader F, which has been set in the normal feeding posture by the various position defining means described above, is moved by the pressure plate pressing member 2 fixed to the inner surface of the back cover 4.
The film pressing plate 2 is pressed against the traveling rail 39 of the exposure opening 9 by the film pressure plate 7. Therefore, the perforation p of the film leader
is the perforation engaging claw 1 of the film feeding device 19
．． 9 Engage with a.

In this state, the film feeding device 19 is operated by turning on the power switch of the camera or pressing the button, and the film is fed. When the back cover 4 is opened, the film pressure &17 returns to the position where the inner surface is aligned with the outer guide portion 15 due to the action of the elastic support pieces 1, 6n, 161], 1.6c.

In the configuration described above, when the back cover 4 is closed, the film leader F has a long length (if the tip of the lever protrudes outside the camera), the tip of the film leader F is cut off. It is necessary to pull out the camera body 2 from the camera body 2, and then sufficiently block light between the horn body 2 and the back cover 4.In order to sufficiently block light, for example, the camera body 2 and the back cover 4 should overlap. Either shade the area using terempu or malt blend for shading, or
Alternatively, a labyrinth seal as described in Japanese Patent Publication No. +4-23785 may be used to block light.

Note that the opening/closing direction of the back cover is not limited to that in the above embodiment; for example, a back cover that swings around an axis in the vertical direction of the camera may be used, as is widely adopted in general cameras. Good too.

As explained in detail above, the simple loading camera of the present invention has the following features:
B) Rohne loading can be performed quite simply, and the loading mechanism has fewer moving parts than before (it has a simpler structure, which can reduce costs).

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a camera according to an embodiment of the present invention, FIG. 2 is a partially cutaway perspective view of FIG. 1, and FIG. 3 is a side cross-section showing a part of the camera shown in FIG. FIG. 4 is a side sectional view showing a part of the camera of FIG. 1. ] ・・・Simple loading camera 2・Camera body 4
...Ura oath 5...Patrone loading room 6
・ ...Bottom surface 7 ... Back surface 8 ...
...Slit 9...Exposure opening 23-12...Fixed blade 13...Movable blade 14...
Inner guide member 15...Outer guide member P...Patrone F...Film leader 24-

Claims (1)

[Claims] In a camera configured to be loaded along the axial direction of a cartridge, a cartridge loading chamber and a member for guiding the film leader are formed within the camera body, and the cartridge loading chamber is separated from the loading chamber by an exposure opening. A cutter means is provided on the opposite side,
A simple loading camera that can be loaded from the bottom of a patrone camera.