JPH0454475Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field to which the invention pertains] The present invention is a method for treating objects to be measured that have been used in radioactivity controlled areas, such as molded products such as shoes and masks, after they have been washed. This invention relates to a laundry monitor that measures the presence or absence of contamination by radioactive materials.

[Prior art and its problems]

FIG. 6 shows a schematic explanatory view of a conventionally known laundry monitor, in which A is a front view thereof, B is a plan view thereof, and FIG. 7 is an enlarged view of the mounting portion of FIG. 6. In FIGS. 6 and 7, the laundry monitor 1 mainly includes a mounting section 2, a conveyor 3, and a measuring section 4. Of these, the mounting portion 2 is a portion where the insertion side of the conveyor 3 is extended and the object to be measured 50 is mounted. The conveyor 3 is inserted from the object to be measured insertion direction P, and the object to be measured 50 is mounted on the mounting section 2.
is transported in the object to be measured discharge direction Q. Measuring part 4
is a set of channels 4 arranged on the conveyor 3
A, and the presence or absence of contamination by radioactive substances of the object to be measured 50 conveyed by this measurement channel 4A is measured. Therefore, the objects to be measured 50 are mounted on the mounting section 2 one by one. With this loading, the conveyor 3 is activated as shown in FIG. 8, and the object to be measured 50 is conveyed to the measurement channel 4A, and measurement is started. Since the conveyor 3 is stopped during this measurement, the next object to be measured 50 is mounted on the mounting section 2 during this time. In other words, measurements are carried out by loading one object at a time, and even if multiple objects are mounted on the mounting section 2, it is difficult to distinguish between measurement judgments with only one measurement channel, which is very time-consuming. There was a measurement problem in that it required a lot of time and was inefficient.

[Purpose of invention]

In view of the above points, the present invention effectively solves the problems of the prior art, has a simple configuration, and is capable of easily and efficiently measuring multiple objects of various shapes. The purpose is to provide

[Key points of the idea]

In order to achieve such an object, in the present invention, the laundry monitor includes mounting parts 7 and 70 for loading the objects to be measured on the conveyor 6 that conveys a plurality of objects to be measured, and this mounting part. A designation plate 8 provided on the back side of the conveyor 6 and having a plurality of frames 8A, 8B, 8C, and 8D for designating the mounting position range of the objects to be measured, and a designation plate 8 provided on this designation plate to specify the mounting position range of the objects to be measured. A measuring section 9 is provided, which includes a plurality of photoelectric switches 10 and 16 that detect the position, and a plurality of measurement channels 9A that measure the presence or absence of contamination by radioactive substances of the object to be measured, which is conveyed from the mounting section by a conveyor. The conveyor 6 is made to be able to transmit the light from the photoelectric switch and also allow the designation plate 8 to be seen through.

According to one embodiment of the present invention, the plurality of measurement channels of the measurement unit 9 independently measure the presence or absence of contamination of the object to be measured.

The measuring unit 9 also has a plurality of frames (for example, 8A and 8
B, 8C, 8D, etc.) are combined to measure the presence or absence of contamination on the object to be measured.

Furthermore, according to another embodiment of the present invention, the photoelectric switch 16 is provided on both sides of the designation plate, and in combination with the reflection plate 17 provided in the center of the designation board in the conveying direction, the photoelectric switch 16 is configured to Along with whether or not it is installed,
The object to be measured is monitored as it is conveyed by the conveyor.

[Example of implementation of the proposal]

Next, embodiments of the present invention will be described in detail based on the drawings.

Fig. 1 shows a principle explanatory diagram of an embodiment of the present invention, A is a front view thereof, B is a plan view thereof, Fig. 2 is an enlarged view of the mounting part in Fig. 1, and Fig. 3 is a diagram similar to that in Fig. 1. A is a front view thereof, and B is a plan view thereof. In FIGS. 1 to 3, on the mounting portion 7 of the laundry monitor 5, there are a plurality of objects 50 to be measured, four in this embodiment, on the back side of the conveyor 6. shaped frame 8A,
A designation plate 8 on which 8B, 8C, and 8D are formed is provided. This designation plate 8 is made of polyacetal resin, and has four photoelectric switches 1 at the center of the frames 8A, 8B, 8C, and 8D to detect the mounting of the object to be measured 50.
0 is placed. Reference numeral 11 denotes a light source lamp for a photoelectric switch provided on the upper panel 7A of the mounting section 7. Further, photoelectric switches 12 arranged on both sides of the conveyor 6 detect an abnormality in the mounting position of the object to be measured 50 that occurs when the object to be measured 50 is carried in. Note that the indicator light 13 is installed on the back side of the conveyor 6,
It is displayed that the laundry monitor 5 is in a state where the object to be measured 50 can be mounted. 14 is the object to be measured 5
0 is an insertion side conveyor transport roller, and 15 is a discharge side conveyor transport roller. In the present invention, the conveyor 6 is configured to transmit light and to allow the designation plate 8 to be seen through.
Therefore, the conveyor 6 may be made of a transparent material, for example, or may be configured to have a gap like a blind.

In this way, the mounting section 7 has four frames 8A, 8
Since B, 8C, and 8D are designated by the designation plate 8, the objects to be measured 50 mounted on the frames 8A, 8B, 8C, and 8D are conveyed by the conveyor 6 and placed in the measuring section 9 in the same manner. The four measurement channels 9A arranged independently measure each other. Therefore, one laundry monitor 5 can simultaneously measure the presence or absence of contamination on four objects 50 to be measured. As shown in FIG. 4, the conveyor 6 is started,
The object to be measured 50 is moved to the position of the measurement channel 9A and measurement is started. During this measurement, the conveyor 6 stops, so the next object to be measured 50 is loaded, and when the measurement time has elapsed, the next object to be measured 50 is carried by the conveyor 6 again to the position of the measurement channel 9A, and the measurement is started. Start. During this time, the measured object 50 is transferred to a sorting device (not shown) by the conveyance roller 15 in the discharge direction.
The products are sorted into contaminated and non-contaminated products.

In addition, the frames 8A and 8B of the designation board 8 or the frame 8
By combining measurement channels 9A corresponding to C and 8D, long objects to be measured,
For example, it is possible to measure boots. Furthermore, it is also possible to measure a large object to be measured 50 by combining the measurement channels 9A into one corresponding to each of the frames 8A, 8B, 8C, and 8D.

Next, FIG. 5 shows an explanatory diagram of main parts of an embodiment of the present invention. In the figure, the mounting section 70 includes a plurality of photoelectric switches 16 (four in this embodiment) arranged on both sides of the designation plate 8, and a reflection plate 17 installed in the central part of the designation board 8 in the transport direction. have The combination of the photoelectric switch 16 and the reflection plate 17 allows the object to be measured to be
It is possible to detect whether it is mounted on C or 8D. At the same time, it is possible to monitor whether there is any abnormality in the mounting position of the object to be measured 50 when it is being transported by the conveyor 6.

Moreover, by detecting the mounting of the object to be measured 50, the activation of the conveyor 6 is automated, the operating procedure is simplified, and the measurement effect is improved.

[Effect of idea]

As explained above, according to the present invention, the laundry monitor includes a mounting section for mounting the object to be measured on a conveyor that conveys a plurality of objects to be measured, and a mounting section provided on the back side of the conveyor of this mounting section. a designation board having a plurality of frames for designating a mounting position range of the object to be measured; a plurality of photoelectric switches provided on the designation board for detecting the mounting position of each of the objects to be measured;
A measurement section having a plurality of measurement channels for measuring the presence or absence of contamination by radioactive substances of the object to be measured carried from the loading section by a conveyor is provided, and the conveyor is capable of transmitting light from a photoelectric switch and has a designation plate. By making it transparent, the trouble in measurement, which was a problem with the prior art, can be effectively solved, and the structure is simple, and the measurement is easy and efficient. .

[Brief explanation of the drawing]

Fig. 1 shows a principle explanatory diagram of an embodiment of the present invention, Fig. 1A is a front view thereof, Fig. B is a plan view thereof,
Figure 2 is an enlarged view of the loading section in Figure 1, and Figure 3 is an enlarged view of the loading section in Figure 1.
4 is a flow sheet of FIG. 1, FIG. 5 is an explanatory diagram of main parts of another embodiment of the present invention,
FIG. 6 shows a schematic explanatory diagram of a conventionally known laundry monitor, in which FIG. A is a front view thereof, FIG. B is a plan view thereof, FIG. It is an enlarged view of the flow sheet. 6... Conveyor, 5... Laundry monitor, 7,
70... Loading section, 8... Designation plate, 8A, 8B, 8
C, 8D...Frame body, 10...Photoelectric switch, 9...
...Measurement section, 9A...Measurement channel, 16...Photoelectric switch, 17...Reflection plate, 50...Measurement object.

Claims (1)

[Claims for Utility Model Registration] 1. A mounting section for mounting the object to be measured on a conveyor that conveys a plurality of objects to be measured, and a mounting section provided on the back side of the conveyor of the mounting section for mounting the object to be measured. a designation plate having a plurality of frames for designating a position range; a plurality of photoelectric switches provided on the designation board to detect the mounting position of each of the objects to be measured; a measurement unit having a plurality of measurement channels for measuring the presence or absence of contamination of the object to be measured by radioactive substances; the conveyor is capable of transmitting light and is capable of seeing through the designation plate; A laundry monitor characterized by: 2. In the laundry monitor set forth in claim 1 of the utility model registration claim, the measuring section is a laundry monitor characterized in that a plurality of measurement channels each independently measure the presence or absence of contamination of the object to be measured. monitor. 3. In the laundry monitor described in claim 1 of the utility model registration, the measurement unit combines a plurality of measurement channels corresponding to a plurality of frames in which a mounting position range of one object to be measured is specified. A laundry monitor that measures the presence or absence of contamination of the object to be measured. 4. In the laundry monitor set forth in any one of claims 1 to 3 of the claims for utility model registration,
Photoelectric switches are installed on both sides of the designation board.
A laundry monitor characterized in that a reflection plate provided in the center of the designation plate in the conveyance direction monitors the presence or absence of the object to be measured and the object to be measured being transported by the conveyor.