JPH03184250A - Film transport device of penetration type electron microscope device - Google Patents

Abstract

PURPOSE:To shorten the time for loading a film by moving a film pinching member to a film accommodation part, and pinching the film in this pinching member and transporting to the photographing position when movement is made toward it after the frame of the pinching member and a rotor held on this frame are got on the film surface. CONSTITUTION:When a film pinching member 13 installed at the tip of a moving rod 14 is moved left along a guide plate 16, the member 13 glides toward the upper part of an upper lid to a film case 8 associate with movement of a moving rod 14. When the tip of this moving rod 14 is contacted the tip of a partition plate 9, the movement is stopped, and subsequent rightwise movement of the film pinching member 13 well draw out the uppermost unexposed film together with the upper frame 17 in the form of being hitched by nails of rotors 21a, 21b. The film taken out is transported to the photographing position while pinched between a bottom plate member 18 and the mentioned upper frame 17. This eliminates operations of loading cassette with films one by one, and enables shortening of the film loading time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a film transport device in a transmission electron microscope apparatus.

[Prior Art] Conventionally, as an imaging device for a transmission electron microscope, an unphotographed film storage section and a photographed film storage section are arranged with a camera chamber in between, and the film is transferred between the film storage section, the camera room, and the photographed film storage section. has been adopted. However, this method has the drawbacks that the width of the photographing device becomes wider and that the film must be loaded and unloaded at separate locations.

Therefore, the unshot film storage section and the shot film storage section are placed one above the other, and the film is taken out from the upper unshot film storage section and sent to the camera room, and the film after shooting is returned to the bottom. For example, Japanese Patent Publication No. 47-21346 proposes a system in which the paper is dropped into a storage section.

In this system, the rl of the photographing device can be made relatively narrow, and the film can be loaded and unloaded at the same position.

[Problems to be solved by the invention] However, in this proposed method, the film is
Since the film must be loaded into a cassette one by one and stored in the storage section, the apparatus becomes large and it takes a lot of time to load the film into the cassette.

The present invention has been made in view of the above-mentioned problems, and it is possible to perform photography without increasing the size of the device, and by eliminating the need to load films one by one into a cassette, thereby greatly shortening the time required to load the film. Its main purpose is to provide equipment.

Means for Solving Problem E] In order to achieve the above object, the film transport device of the present invention includes a camera room and a position remote from a photographing position in the camera room so that the film surface rises as the distance from the photographing position increases. a film storage section that holds the film while tilting it so that the film is held; and a film holding member that holds the film between the upper frame body and the lower bottom plate member so as to be rotatable with respect to each other by a common shaft. , a rotating body held by the upper frame of the film holding member, rotating only in one direction and having a plurality of radial needles; and a moving mechanism for moving the film holding member between the photographing position and the film storage section. When the film holding member is moved to the film storage section by the moving mechanism, the frame of the film holding member rides along the film surface and the rotating body held by the frame also comes into contact with the film surface. The film is configured such that when it rides on the film while rotating, and then the moving mechanism moves the film clamping member in the direction of the photographing position, the film is pulled out by a needle of the rotating body, is held by the clamping member, and is transferred to the photographing position. It is characterized by

[Example] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram showing the main parts of an apparatus according to an embodiment of the present invention;
2 is a perspective view of the film case used in FIG. 1, and FIG. 3 is a plan view of the film holding member used in FIG. 1.

In FIG. 1, 1 is a camera room connected to an observation room 2. In FIG. The observation room 2 is equipped with an observation window (not shown) for observing the image projected on the fluorescent screen 3, and the fluorescent screen 3 also serves as a shutter. Therefore, by rotating the fluorescent screen 3 in the direction of arrow A, an electron microscope image is recorded on a film as a sheet-like image recording medium placed below.

An unused film storage section 4 is placed at a position away from the photographing position on the west side of the camera room 1, and a used film storage section 5 is placed so as to be inclined downward from this unused film storage section 4. These storage parts 4.5 are provided with a lid body 6,
7, it can be opened and closed. In the unused film storage section 4, a film case 8 is installed on a partition plate 9. A large number of bare films 10 that are not stored in a cassette or the like are stacked in this film case 8 so as to be tilted upward as they move away from the shooting position. It's being pushed up. As shown in an oblique view in FIG. 2, the upper part of the film case 8 and the lower part of the f8a are cut out in a U-shape so that the film 10 is exposed.

A film holding member 13 is attached to the tip of a moving rod 14, and the moving rod 14 is connected to a reciprocating mechanism, such as an air cylinder 15, and moves on a guide plate 16. The holding member 13 has an upper frame 17 and one end of a bottom plate member 18 fixed to each other by a common shaft 19 so as to be rotatable with respect to each other.

The upper frame 17 of the film holding member 13 holds a hemispherical sliding piece 20 and a rotating body 21a that rotates in one direction and has a plurality of radial needles.

Reference numeral 22a denotes a push rod, one end of which is rotatably attached to the shaft of the rotating body 21a, and the other end rotatably attached to a bin 23a attached to the lower part of the moving rod 14. At this time, the push rod 22a and the pin 23a are attached to each other by a long groove (not shown in the drawings), so that the push rod 22a and the pin 23a can be moved in the axial direction.

A compression spring 24a for pressing the needle of the rotating body 21a against the film 10 is attached to the push rod 22a. As shown in the plan view in FIG. 2, the film holding member 13 is provided with rotating bodies 21a and 21b on both sides of an upper frame 17 attached in a U-shape, and a push rod 22a and a push rod 22a, respectively. 22b is attached, and
Push springs 24a and 24b (not shown) are attached to each push rod. Note that the rotating bodies 21a and 21b include
For example, a ratchet mechanism 25 that combines gears and pawls
a and 25b are attached and are configured to rotate only when moving toward the film storage section, that is, toward the left in the drawing.

Film exposed portions 10a at both ends provided at the lower part of the upper lid 8a of the film case 8 shown in FIG.

10b is a rotating body 21a provided on both sides of the upper frame 17 of the film holding member 13 shown in FIG.

It is configured so that the needle 21b can come into contact with it.

In such a configuration, first, the film case 8 loaded with a large number of films 10 is placed on the partition plate 9 of the unused film storage section 4 using the lid 6. Then, the film holding member 13 attached to the tip of the moving rod 14 is moved to the left in the drawing along the guide plate 16 by the air cylinder 15.

When the holding member 13 reaches the position of the film case 8, the hemispherical sliding piece 20 attached to the tip of the upper frame 17 is exposed at the lower part of the upper lid 8a of the film case 8.

10b, and as the moving rod 14 moves leftward in the drawing, it slides toward the top of the top cover 8a of the film case 8. Further, the rotating bodies 21a and 21b ride on the film exposed portions 10g and 10b, pierce the film surface with needles provided around them, and move up while rotating. On the other hand, the bottom plate member 18 of the film holding member 13 is inserted into the used film storage section 5, and the tip of the bottom plate member 18 hangs downwardly.

Then, when the tip of the moving rod 14 comes into contact with the tip of the partition plate 9, the movement is stopped. And air cylinder 1
5, when the film holding member 13 is moved to the right in the drawing, the rotating bodies 21a and 21b do not rotate to the right, so the first unused film on the top is caught in the needle of the rotating body. can be pulled out together with the upper frame 17.

Then, the removed film is the bottom plate member 1 that has come up.
8 and the upper frame 17 and transported to the photographing position. After shooting, the film holding member 13 is moved leftward in the drawing until the tip of the moving rod 14 comes into contact with the tip of the partition plate 9, with the shot film still being held between the film holding members 13. At this time, the bottom plate member 18 of the film holding member 13
is inserted into the used film storage section 5, and the tip of the bottom plate member 18 hangs downward. Then, at the same time that the photographed film slides down into the used film storage section 5, the upper frame body 17 rides on the top of the top lid 8a of the film case 8, and the needles of the rotating bodies 21a and 21b also slide down to the second unused film storage section 5. ride on top. After that, when the film holding member 13 is moved to the right in the drawing, the second unused film is pulled out by being hooked on the needle of the rotating body, and is further sandwiched between the upper frame 17 and the bottom plate member 18. and transported to the shooting position. Photographing is repeated in this manner, and when a predetermined number of images have been photographed, the lid 7 is opened and the photographed film is taken out.

In this way, in the present invention, the films are pulled out one by one with the needle of the rotating body and transferred between the film holding members, so there is no need to load the films one by one into the cassette as described in the conventional example. Ta. Therefore, the film storage section can be made smaller, and the work of loading films one by one into a cassette is no longer necessary.

In the above embodiment, the rotating body is rotated in only one direction using a ratchet mechanism, but the present invention is not limited to this, and a known mechanism for rotating in one direction may be used.

Furthermore, in the above embodiment, the bottom plate member of the film holding member is pushed into the used film storage unit, the tip of the bottom plate member hangs downward, and the photographed film is pushed into the used film storage unit due to its own weight. Although the photographed film is slid down, the bottom plate member may not be inclined so much that the photographed film slides, and the photographed film may be pulled out with a needle or a claw.

Furthermore, in the above embodiment, the used film storage section is installed so as to be inclined in the opposite direction of the unused film storage section, that is, downward, but the used film storage section is installed horizontally downward without being inclined. Good too.

[Effects] As described in detail above, according to the present invention, it is possible to provide a photographing device that does not require increasing the size of the device and does not require loading films one by one into a cassette.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing the main parts of an apparatus according to an embodiment of the present invention;
2 is a perspective view of the film case used in FIG. 1, and FIG. 3 is a plan view of the film holding member used in FIG. 1. 1: Camera room 2: Observation room 3: Fluorescent screen 4: Unused film storage section 5: Used film storage section 6.7: Lid 8: Film case 9.11: Partition plate 10: Film 12: Spring 13: Film clamping Component 14: Moving rod 15: Air cylinder 16: Guide plate 17: Frame 18: Bottom plate member 19: Shaft 20: Sliding piece 21: Rotating body 22: Push rod
23: Bin 24: Compression spring 25: Ratchet mechanism

Claims (1)

[Claims] a camera room; a film storage section that holds the film at a position remote from the shooting position in the camera room and tilted so that the film surface rises as the distance from the shooting position increases;
A film holding member in which an upper frame for holding a film therebetween and one end of a lower bottom plate member are rotatably fixed to each other by a common shaft; and a film holding member that is held by the upper frame of the film holding member; a rotating body that rotates only in the direction of the arrow and has a plurality of needles radially; and a moving mechanism that moves the film holding member between a photographing position and a film storage section, and the moving mechanism moves the film holding member to the film storage section. When the frame body of the film clamping member rides on the film surface, the rotating body held by the frame body also contacts the film surface and rides on it while rotating, and then the film clamping member is moved by the moving mechanism. A film transport device in a transmission electron microscope apparatus, characterized in that when the film is moved in the direction of the photographing position, the film is pulled out by a needle of a rotary body, held between clamping members, and transported to the photographing position. .