JPS622605Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a mounted film magazine, and more particularly to a mounted film magazine for a slide projector that can selectively perform both projection on a roll film and projection on a mounted film.

The recent trend in slide projectors is that they are capable of projecting images on roll film. This format has the advantage that it is easy to organize the negatives because there is no need to separate the negatives into individual frames, and it requires less space to store the negatives.

By the way, in order to install a slide projector that can project images on roll film, the negative N is usually placed in a magazine Q that has a window P in the center that can expose one frame, as shown in Figure 1. accommodate,
As shown in FIG. 2, the magazine Q is attached to the magazine mounting portion 4 formed between the light source 2 and the magnifying lens system 3 of the projector body 1 so that the window P crosses the optical axis 5 in the same direction as the gravity direction. It is attached in the direction. The magazine mounting section 4 generally includes an optical axis 5 of the magazine Q.
It is composed of frame-shaped position regulating plates 7 and 8 that are provided perpendicularly to the optical axis 5 to regulate positional deviation in the direction, and the position regulating plate 8 has a recess R provided in the magazine Q. A plate spring 9 is attached which fits into the magazine Q to fix the magazine Q and prevents the magazine Q from shifting in a direction perpendicular to the optical axis. In addition, S in the figure indicates a gear connected to a sprocket (not shown) located in the magazine Q, and this gear S is connected to the frame when the magazine Q is attached to the magazine attachment part 4 as shown in FIG. It is automatically connected to the feeding mechanism 11.

However, the device configured as described above has the following problems. In other words, with the above configuration, it is possible to project the roll film as it is, which is convenient, but currently, as shown in Figure 3, each frame of the negative is separated and this is placed between two frames. Since there is also a so-called mount film A which is held between H ₁ and H ₂ , there is an inconvenience in that even if you try to use this mount film A for projection, you cannot use it.

Therefore, in order to eliminate such problems,
As shown in FIG. 4, grooves 21a and 21 are provided on the back side of the position regulating plate 7, that is, on the surface located on the magnifying lens system 3 side, for guiding the mount film A in the direction of gravity.
b, and a locking plate 22 is provided in a relationship that can selectively block the groove 21a, so that the mount film A can be selectively set on the optical path by the grooves 21a, 21b and the locking plate 22. It is conceivable that projection of mount film A may also be possible.

However, if the mounting films A are manually dropped one by one into the narrow grooves 21a and 21b, the operability is poor and there is a risk of damaging the mounting films A. Therefore, it is desired that some means to improve these problems be developed.

This idea was devised in view of these circumstances, and its purpose is to create a roll film slide projector that can greatly simplify the work of inserting the mount film without damaging the mount film. Our goal is to provide mount film magazines for

The details of this invention will be explained below with reference to illustrated embodiments.

FIG. 5 shows the external appearance of the magazine according to this invention. As shown in FIGS. 6 and 7, this magazine can be roughly divided into the position regulating plate 7,
The leg portion 31 that is attached and fixed between the
A storage box 32 fixed to the upper end and housing a plurality of mount films A in a direction parallel to the optical axis 5 described above, and a lid 33 that covers this storage box 32.
a spring 34 that applies a biasing force toward the inner surface of the side wall 32a of the storage box 32 to the plurality of mounting films A stored in the storage box 32; A feed-out port 35 that is provided in a section and sends out only the mount film A that is in contact with the inner surface of the side wall 32a downward, and a mount film A that is provided so as to be movable up and down along the side wall 32a and located above the feed-out port 35. Consisting of a push-out plate 36 narrower in width than the mount film A that is pushed out through the delivery port 35, and rotating levers 37a and 37b that are attached to the outer surface of the side wall 32a to prevent the mount film A from falling and to smoothen the delivery. has been done.

The leg portion 31 is formed into a rectangular tube shape, and its side portion 31a is provided with a recess 31b into which the leaf spring 9 fits, and the side wall 31c opposite to the side wall 31a is provided with a recess 31b as shown in FIG. Position regulation plates 7 and 8
A stepped portion 31d is provided which comes into contact with the upper end surface of the position regulating plate 7 and regulates the insertion position of the leg portion 31 when the leg portion 31 is installed between the leg portion 31 and the leg portion 31.

The storage box 32 is formed in a rectangular shape with an open top surface, and the leg portions 31 are connected to the position regulating plates 7 and 8.
When mounted between the legs 31, the long sides thereof are parallel to the optical axis 5, and one end thereof protrudes outward by the width of the delivery port 35 from the side wall 31c, as shown in FIG. is fixed at the top of the The delivery port 35 is formed in the bottom wall of the protruding portion. Also, a side wall 32a of the storage box 32 located on the step portion 31d side
extends in the vertical direction, and the step portion 31d extends downward.
It extends upward to a position equal to or larger than the width of the mount film A. And the above storage box 3
A pressing plate 38 is provided inside the pressing plate 3.
8 and the inner surface of the side wall 32b opposite to the side wall 32a.
Further, as shown in FIG. 5, the pressing plate 38 is provided with pins 39a,
39b (however, 39b is not shown) is provided protrudingly, and these pins 39a, 39b are connected to slits 4 provided along the longitudinal direction on the longitudinal side walls of the storage box 32.
0a and 40b are fitted.

The lid body 33 is formed in a shape that covers the upper surface of the storage box 32, the outer surface of the longitudinal side wall, and the outer surface of the side wall 32b, and has a slit 41 equal to the slits 40a and 40b in the portion covering the outer surface of the longitudinal side wall.
a, 41b (however, 41b is not shown) are formed, and pins 39a, 39 passing through the slits 40a, 40b are formed in these slits 41a, 41b.
9b is fitted. Therefore, if the lid body 33 is slid to the right in FIG. 5, and when it reaches the final position, it is rotated 90 degrees downward using the pins 39a and 39b as fulcrums, as shown in FIG. The lid body 33 can be held in a so-called open state, and thereby the top surface of the storage box 32 can be kept open and the pressing plate 38 can be kept in a maximum open state. Note that a notch 42 through which the push-out plate 36 can pass is provided in a portion of the lid 33 that covers the upper surface of the storage box 32 and is close to the side wall 32a.
is formed.

A slit 43 is provided in the center of the side wall 32a, and the above-mentioned push-out plate 36 and knob 44 are arranged on the inner side of the slit 43, that is, on the mount housing side and the outer side. , both are connected by a member 61 passing through the slit 43. Note that the thickness of the extrusion plate 36 is set to be slightly thinner than the thickness of the mount film A. Further, the rotating levers 37a, 3
Reference numeral 7b is disposed on the outer surface of the side wall 32a and at a portion located outside the passage range of the extrusion plate 36, and its center portion is rotatably supported by a support mechanism 45 fixed to the outer surface of the side wall 32a. ing. The upper end portions of the rotating levers 37a and 37b are provided with bent portions 46 bent toward the side wall 32a, and these bent portions 46 are connected to the side wall 32a.
It is possible to enter the storage box 32 through a small window 47 provided in a. Similarly, the rotating lever 37
Bent portions 48 bent toward the side wall 32a are also provided at the lower end portions of a and 37b, and these bent portions 48 can enter below the delivery port 35 through a small window 49 provided in the side wall 32a. It is becoming. A biasing force is applied to each of the rotating levers 37a, 37b by a spring 50, and this biasing force causes each of the rotating levers 37a, 37b to be biased.
7b is always maintained in a state in which the bent portion 48 enters below the delivery port 35 and the bent portion 46 is retracted from the inside of the storage box 32.

Next, an example of the use of the mounted film magazine configured as described above will be explained.

First, slide the lid 33 to the right in FIG. 5, and when it slides to the final position, the lid 33
is rotated downward about the pins 39a and 39b to bring it into the state shown in FIG. In this state, the top surface of the storage box 32 is open and the pressing plate 38
is kept to a maximum in what is called an open relationship. In this state, the mounting film A is stored in the storage box 32, and the lid 33 is set again as shown in FIG. When the lid body 33 is set in this manner, the housed mount film A is pressed against the inner surface of the side wall 32a by the restoring force of the spring 34, as shown in FIG.

Then, the leg portion 31 of the magazine containing the mount film A therein as described above is inserted between the position regulating plates 7 and 8 as shown in FIG. In this state, the groove 21 provided in the position regulating plate 7
A delivery port 35 is located directly above the mount guide portion formed by a and 21b.

Thus, the mounting film A is inserted into the grooves 21a, 2.
When sending it out into 1b, the knob 44 is operated to move the push-out plate 36 downward. When the pushing plate 36 moves downward, when it descends to a certain position, the lower end surface of the pushing plate 36 presses the upper end surface of one mount film A that is in contact with the inner surface of the side wall 32a.
starts descending, protrudes downward from the delivery port 35, and its lower edge abuts the bent portions 48 of the rotating levers 37a, 37b. Since the tip of the bent portion 48 is formed with an appropriate curvature, when the knob 44 is pushed down with even stronger force, the rotating levers 37a and 37b are rotated by the pressing force of the mount film A, and the ninth As shown in the figure, the bent portion 48 is retracted from the lower part of the delivery port 35, and conversely, the bent portion 46 is retracted from the small window 4.
7 into the storage box 32, and presses the upper end of the second mount film A in a direction away from the side wall 32a. In this state, for example, even if the knob 44 is raised to the position shown in FIG. 6 and then lowered again, the push-out plate 36 will not be stopped by the second mount film A and its movement will be inhibited. do not have. When the knob 44 is further pushed down, the mount film A is further lowered, and is finally released from contact with the bent portion 48 and lowered into the grooves 21a and 21b, and is correctly set on the optical path. . Therefore, knob 44
The mount films A can be successively set at correct positions on the optical path by simply performing the following operations.

In this way, the mount film A can be selectively inserted between the position regulating plates 7 and 8, and the mount film A can be fed one by one into the mount guide provided on the position regulating plate 7 by simply operating the knob 44. It is said that Therefore, the operation when using the mount film can be greatly simplified, and there is no risk of damaging the mount film, making it easy to use. In particular, see-saw-shaped rotating levers 37a and 37b are provided to prevent the mount film A from falling through the feed port 35 and to smoothly move the push-out plate 36 up and down, making it even easier to use. I can do it. In addition, when the lid is slid to open the opening of the storage box and the lid is subsequently rotated, a mechanism is provided that compresses the spring and maintains the compressed state. Therefore, there is an advantage that the mounting film can be easily accommodated in the storage box.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a roll film magazine, Figure 2 is a schematic configuration diagram of a slide projector using a roll film magazine, Figure 3 is a perspective view of a mount film, and Figure 4 is a perspective view of a roll film projection and mount film. FIG. 5 is a perspective view of a magazine according to an embodiment of this invention; FIG.
The figure is a cross-sectional view taken along line X-X in Figure 5, Figure 7 is a perspective view of the same magazine when the lid is opened, and Figure 8 is a perspective view of the same magazine when the lid is opened.
The figure is a vertical cross-sectional view of the magazine mounted on the magazine mounting section, and FIG. 9 is a partial vertical cross-sectional view for explaining the mounting film feeding operation of the magazine. 2...Light source, 3...Magnifying lens system, 4 ...Magazine attachment part, 5...Optical axis, 31...Legs, 32...
...Storage box, 32a...Side wall, 33...Lid, 34
... Spring, 35 ... Outlet port, 36 ...
Push-out plate, 37a, 37b... Rotating lever, 3
8... Pressing plate, 39a, 39b... Pin, 40
a, 40b, 41a, 41b...slit, 4
6,48...Bending portion, Q...Roll film magazine, A...Mount film.

Claims (1)

[Scope of utility model registration request] A magazine mounting part for mounting a roll film magazine in the same direction as the gravity direction is provided between the light source and the magnifying lens system in a relationship transverse to the optical axis, and also forms a part of the magazine mounting part, and A mount guide section for guiding the mount film in the same direction as the direction of gravity is formed in a member that restricts the position in the optical axis direction so as to cross the optical axis. a leg portion to be attached to the mount guide portion; a storage box fixed to the upper end of the leg portion and housing a plurality of mount films therein in a direction parallel to the optical axis; and the storage box located directly above the mount guide portion. a mount feed-out port provided on the bottom wall of the storage box; and a side wall of the storage box that regulates the position of the mount film such that one of the mount films accommodated in the storage box is always positioned above the mount feed-out port; a spring provided in the storage box that commonly applies a biasing force toward the inner surface of the side wall to a mounting film in the storage box; a lid body that selectively covers an opening of the storage box; When the opening of the storage box is opened by sliding, the spring is compressed in conjunction with the sliding movement, and when the lid is subsequently rotated in a direction perpendicular to the sliding direction, the compressed state is released. a holding mechanism; a pushing plate that is provided to be vertically movable along the side wall and selectively pushes out the mount film located above the delivery port through the delivery port; and is attached to the outer surface of the side wall in a seesaw shape; The lower end of the mount normally prevents the mount film from falling through the feed port, and when the extrusion plate tries to push out the mount film, the mount rotates so that the upper end of the mount film is positioned at the second or subsequent film. A mounted film magazine comprising a rotating lever that applies a force to the upper end of the film in a direction away from the side wall.