JP2783471B2 - Cassette for sheet film - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to, for example,
Also, the present invention relates to a sheet film cassette that can easily operate a lid fixing member provided at a different position on a lid corresponding to a radiation sheet film having a different size.

[0002]

2. Description of the Related Art Usually, when an image or the like is recorded on a radiation sheet film, the radiation sheet film is housed in a cassette in a light-shielded state and loaded into an image recording apparatus, and then radiation containing image information passes through the cassette. The radiation sheet film is irradiated, the cassette is taken out of the image recording apparatus, and the radiation sheet film is carried into a developing device and subjected to a developing process.

In this case, the cassette comprises a casing for accommodating a sheet film such as a radiation sheet film, and a lid which is openably and closably engaged with the casing and maintains the sheet film in a light-shielding state in the casing. The lid is provided with a locking member that can be engaged with the casing to fix the lid, while the casing has the locking member covered with a pressing pin disposed outside. An engagement hole for pressing the body inward is formed.

By the way, as a radiation sheet film,
In addition to a general imaging film, a mammography film, a so-called mammography film, is used. However, the imaging position of a radiation image and the recording position of ID information are different between the general imaging film and the mammography film. . For this reason, if a mammography film is accommodated in a cassette accommodating a general photographing film and used, the ID information recording position and the image position overlap, and if the ID information recording position is moved to a position that does not overlap the image. , And overlap with the position of the locking member.

Therefore, a radiation sheet film cassette provided with a plurality of engaging holes corresponding to locking members provided at different positions according to the general photographing film and the mammography film is prepared. A radiation device configured to simultaneously insert a pair of pressing pins corresponding to the members into the respective engagement holes to open the lid by pressing the locking member of the cassette for accommodating any of the films. A sheet film cassette has been proposed by the present applicant (see Japanese Utility Model Laid-Open No. 3-16148).

[0006]

However, in the above-mentioned prior art, a total of four engaging holes are formed on the side of the casing constituting the cassette, two sets each on the right and left corresponding to each locking member. On the lid opening / closing device side, four pressing pins are mounted so as to be able to move forward and backward corresponding to the four engaging holes. For this reason, it is pointed out that a cassette provided with only a pair of engagement holes on the side of the casing cannot be applied to the lid opening / closing device, and the usable cassette is limited, and the versatility is poor. Have been.

SUMMARY OF THE INVENTION The present invention is to solve this kind of problem, and the locking members provided at different positions corresponding to various different sheet films can be easily formed with a small number of pressing pins corresponding to the number of the locking members. It is another object of the present invention to provide a sheet film cassette that can be reliably pressed to release the lid fixing operation.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a casing for accommodating a sheet film, which is openably and closably engaged with the casing so that the sheet film is shielded in the casing. A lid that is maintained in a state, a locking member that is provided at a predetermined position of the lid so as to be able to advance and retreat, and that can engage with the casing and fix the lid, and corresponds to the position of the locking member. At least one first pressing pin insertion engaging hole provided in the casing, and at least one second pressing pin inserting engagement provided at a position different from the position of the first pressing pin insertion engaging hole. And a sheet film cassette having holes,
For inserting the first and second pressing pins into the casing
It is integrally disposed so as to correspond to the engaging hole, when the pressing pin is inserted into one of the engagement hole of the first and second pressing pin insertion engagement hole, the pressing action of a said pressing pins And a flexible pressing member for releasing the fixing operation of the lid by pressing the locking member into the inside of the lid.

[0009]

In the cassette for a sheet film according to the present invention,
A plurality of engagement holes are formed at different positions of the casing in accordance with the type and / or size of the sheet film, and when a pressing pin is inserted into any of the engagement holes of the casing, each engagement hole is formed. A pressing member integrally disposed in the casing and in the casing is pressed by the pressing pin to displace the locking member into the lid. Therefore, the lid fixing action by the locking member is released, and the lid can be released from the casing.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a cassette for a sheet film according to the present invention will be described in detail with reference to the accompanying drawings.

In FIG. 1, reference numeral 10 denotes a sheet film cassette according to the present embodiment. The cassette 10 includes a casing 14 for accommodating a radiation sheet film (sheet film) 12, which is a film for mammography, and is engaged with the casing 14 so that the radiation sheet film 12 can be opened and closed. And a cover 16 which is provided at a predetermined position of the cover 16 in accordance with the type and / or size of the radiation sheet film 12 so as to be able to advance and retreat, and engages with the casing 14 to cover the cover Locking members 18a and 18b capable of fixing the fixing member 16; a locking member (not shown) used for a film for general photographing;
18b, a plurality of pressing pin insertion engagement holes 20a, 2b provided at different positions of the casing 14.
0b and 22a, 22b and the plurality of engagement holes 20
a, 20b and 22a, 22b are integrally disposed in the casing 14 so as to correspond to the engagement holes 20a, 20b.
When the pressing pins 24a, 24b (see FIG. 2) are inserted into the flexible plate, the locking members 18a, 18b are pressed inwardly of the lid 16 to release the fixing action of the lid 16. And a body (pressing member) 26a, 26b.

The casing 14 has a rectangular shape.
An opening 28 is formed in the upper part, and one side 3
A bent portion 32 protruding toward the opening 28 is provided at the upper end of the zero. The side portion 30 has engaging holes 20a and 20b corresponding to positions of a locking member (not shown) used for a general photographing film, and a member used for the radiation sheet film 12, which is a mammography film. Stop member 18a,
Engagement holes 22a and 22b corresponding to the position of 18b are sequentially provided in a direction away from the center. Plates 26a and 26b are flexibly mounted on the inner wall surface of the side portion 30 via fixing members 34a and 34b. This plate 2
6a and 26b can be made of a flexible, for example, a leaf spring.

On the other side 30a of the casing 14,
The lid 16 is attached to be openable and closable via hinges 36a and 36b. The lid 16 has a plate-like shape, and locking members 18a and 18b are provided with springs 38a and 3
2b while being pressed outwardly through the base 8b (FIG. 2).
reference). A part of the locking members 18a and 18b
The operation units 42a and 42b are configured to be exposed to the outside through the openings 40a and 40b formed on the upper surface of the unit 6. Lid 16
On the upper surface of the information about the radiation sheet film 12,
ID window 44 for recording ID information such as a patient name
Is formed.

The pressing pins 24a and 24b constitute a cover opening / closing device (not shown), and correspond to a locking member (not shown) used for a general photographing film. 20b.

Next, the cassette 10 constructed as described above will be described.
Will be described.

First, a cassette 10 accommodating a radiation sheet film 12 as a mammography film in a light-shielded state is loaded into a photographing apparatus (not shown), and radiation image information is photographed on the radiation sheet film 12. After that, it is loaded into a lid opening / closing device (not shown).

In this lid opening / closing device, a pressing pin 24
a and 24b are arranged corresponding to the film for general photographing, and the pressing pins 24a and 24b are moved to the casing 14 side so that the engaging holes 20a and 20b of the casing 14 are formed.
Is inserted into. For this reason, the tips of the pressing pins 24a and 24b press the plates 26a and 26b mounted on the inner wall surface of the side portion 30 of the casing 14 into the opening 28, and the plates 26a and 26b are fixed to the fixing members 34a. , 34b as a fulcrum. Therefore, the plate 26
a, 26b connect the locking members 18a, 18b to the springs 38a,
38b is pressed against the inside of the lid 16 against the elastic force of the cover 38, and the locking members 18a and 18b are
And the fixing action of the lid 16 by the locking members 18a, 18b is released.

Next, the lid 16 is opened, and the opening 28 is opened.
The radiation sheet film 12 is taken out of the apparatus, and the radiation sheet film 12 is conveyed into a developing device (not shown) and subjected to a predetermined developing process.

In this case, in the present embodiment, the side portion 30 of the casing 14 constituting the cassette 10 accommodating the radiation sheet film 12, which is a film for mammography, is provided.
Lock members 18a, 1 for the radiation sheet film 12
Engaging holes 22a and 22b corresponding to 8b and engaging holes 20a and 20b corresponding to a locking member (not shown) used for a general photographing film are formed. The engagement hole 20 is formed on the inner wall surface of the side portion 30 that constitutes the casing 14.
a, 22a and the engagement holes 20b, 22b are integrally closed to provide flexible plates 26a, 26b.

For this reason, when the cassette 10 is loaded in a lid opening / closing device for opening and closing the lid of the cassette accommodating the general photographing film, the pressing pins 24a and 24b are inserted into the engagement holes 20a and 20b. When the plates 26a, 26
The locking members 18a, 18b provided corresponding to the engagement holes 22a, 22b are pressed under the bending action of b, and the fixing action of the lid 16 by the locking members 18a, 18b is released.

Therefore, it is not necessary to provide two sets (a total of four) of pressing pins in the cover opening / closing device corresponding to the film for mammography and the film for general photography, and only one set (two) of the engagement holes is provided. Can also be loaded with a cassette having a casing having the above, and the effect that versatility is improved at once is obtained.

On the other hand, the cassette for accommodating the film for general photographing is provided with a plurality of engaging holes at different positions corresponding to the film for general photographing and the film for mammography, and integrated with these engaging holes. If a flexible plate is disposed in the cassette, it is possible to open and close the lid of the cassette that contains the film for general photography by the lid opening and closing device for the cassette that contains the film for mammography.

When the cassette 10 according to the present embodiment is loaded in the lid opening / closing device of the cassette accommodating the above-mentioned mammography film, the lid opening / closing device is provided with the engaging holes 22a and 22b of the casing 14. A pressing pin (not shown) is arranged at a corresponding position. For this reason, the pressing pins are inserted into the engagement holes 22a, 22b, and the plate 26a,
26b is displaced toward the opening 28, and the plate bodies 26a,
The fixing action of the lid 16 by the locking members 18a, 18b can be released via the 6b.

In this embodiment, the two plate members 26a, 2a
6b, for example, the side 3 of the casing 14
0, a plate having a length substantially corresponding to the length direction is prepared, and a substantially center of the plate is fixed to the inner wall surface of the side portion 30 and engaging holes 20a, 22a are formed on both side surfaces thereof. And engagement hole 2
0b and 22b may be integrally closed.

[0025]

According to the cassette for a sheet film according to the present invention, the following effects can be obtained.

A plurality of engaging holes are formed at different positions of the casing in accordance with the type and / or size of the sheet film, and when the pressing pin is inserted into any of the engaging holes of the casing. The pressing member, which is disposed in the casing so as to be integral with each of the engagement holes, is pressed by the pressing pin to displace the locking member into the lid. Therefore, even if the position of the pressing pin is different, the locking member can be easily pressed to release the lid fixing action by the locking member, and the lid can be opened from the casing. The number of pressing pins can be reduced at once.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a sheet film cassette according to the present invention.

FIG. 2 is a partial longitudinal sectional view of the cassette.

FIG. 3 is a partial plan view of the cassette.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Cassette 12 ... Radiation sheet film 14 ... Casing 16 ... Lid 18a, 18b ... Locking member 20a, 20b, 22a, 22b ... Engagement hole 24a, 24b ... Press pin 26a, 26b ... Plate 30 ... Side part 34a , 34b ... fixing member

Claims (1)

(57) [Claims] 1. A casing for accommodating a sheet film, a lid that is openably and closably engaged with the casing, and maintains the sheet film in a light-shielding state in the casing; A locking member freely provided and capable of engaging with the casing to fix the lid, and at least one first pressing pin insertion engagement provided on the casing corresponding to a position of the locking member; and the hole, a sheet film cassette having at least one second pressing pin insertion engagement hole provided at a position different from the position of the first pressing pin insertion engagement hole, in the casing For inserting the first and second pressing pins
It is integrally disposed so as to correspond to the engaging hole, when the pressing pin is inserted into one of the engagement hole of the first and second pressing pin insertion engagement hole, the pressing action of a said pressing pins And a flexible pressing member for releasing the fixing operation of the cover by pressing the locking member into the inside of the cover.