JPS6141634B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a method for sorting postal letters, in which letters are sorted by area or destination and are accumulated in letter accumulation room groups for each area or destination. Generally, at a post office, the letters collected from each post are sorted by sorting machine, and then sorted by direction.
Furthermore, the classified postal letters were accumulated by area in a group of letter accumulation rooms formed for each area. Regarding this method of collecting and sorting postal letters, please refer to the first section.
A detailed explanation will be given with reference to the drawings and FIG.
is installed. Then, this sorting machine c has a second
The data shown in the figure has been entered. In other words, the data shown in Figure 2 has the number N of postal letters on the vertical axis,
The horizontal axis shows the destination z of each postal letter by area, and is a graph of the quantity distribution of postal letters by destination, which is calculated based on past performance averages. Then, based on this data information, the postal letters are statistically sorted by region, for example, Tokyo region, Osaka region, Tohoku region, Hokkaido, etc., by the sorting machine 3. Postal letters from destinations that are expected to have 10 or more letters,
Each letter accumulation room b...... is accumulated in a group. and,
Postal letters from destinations that are expected to have a number of 9 or less, that is, less than the collection limit, are accumulated in the miscellaneous accumulation room set in the letter accumulation room b... group based on the above data information. However, the statistical data that is the basis for accumulating these postal letters is calculated from the number of letters classified into one time in the total number of postal letters, and the number of letters classified into one time. becomes larger,
Or, if the size of the letters decreases, the statistical data will greatly deviate from the similarity, and a group of 9 or fewer letters will be accumulated independently in the letter accumulation room b, and this group of 9 or fewer letters will be the same as the number of letters. The number of letters increases or decreases depending on the number of letters, and it becomes a hassle for the operator to roughly bundle these nine or less postal letters for each destination. This invention was made based on the above-mentioned circumstances, and its purpose is to reduce the number of letter accumulation chambers that independently accumulate letters below a certain number, thereby reducing the rough bunching work by workers. The purpose of this paper is to provide a method for sorting postal letters. An embodiment of the present invention will be described below with reference to FIG. In the figure, 1 is the letter sorting box of the automatic collection device, and inside this box there are approximately 150 letter collection chambers 2...
...is arranged. Also, this letter classification box 1
A sorting machine 3 is provided on the side of the machine, which is formed by an optical reading device 4, a sorting device 5, and a letter transport mechanism 6, which are respectively arranged inside. Also,
A conveyor belt (not shown) is arranged for each row on the upper surface of the letter accumulation chamber 2.
Postal letters are conveyed by these conveyor belts. Furthermore, the above-mentioned letter accumulation room 2...
... gates (not shown) on the top of each
are arranged, and by selectively operating these gates, postal letters can be selectively accumulated in each letter accumulating chamber 2. The data information shown in FIG. 4 is input to this sorting machine 3. In other words, the data information shown in Figure 4 shows the number of postal letters in circulation N' on the vertical axis, the destination Z' of each postal letter on the horizontal axis, and the predicted number of categories of postal letters for each destination. This is a graphical representation of the distribution of the number of items distributed, and is calculated based on past performance averages. Further, this data information includes data information regarding increases and decreases in the number of letters, such as by mail and by day of the week, and based on this comprehensive data information, one mailing of postal letters is sorted by the sorter 3. Letter collection rooms 2 for each direction are set up according to the quantity. Next, the operation of the automatic stacking apparatus configured as described above will be described with reference to FIGS. 3 and 4, with a specific example. The table below shows that the mailboxes are sent three times a day from a certain region's mailbox by a collector and delivery person: morning delivery, lunch delivery,
The items were collected in the evening, and the morning, afternoon,
The total number of mails for each evening classification work is listed.
This morning, noon, and evening forecast data information is input to the sorting machine 3 as described above.

[Table] Each graph shown in Figure 5 also shows the morning flight,
This shows the distribution of the total number of mails for daytime and evening flights by destination from A to Z, where α represents the distribution of morning flights, β represents the afternoon flight, and γ represents the distribution of the number of evening flights. ing. In each graph, δ ₃ , δ ₂ , and δ ₁ represent 9 or less emails, and σ ₁ , σ ₂ , and σ ₃ represent the range of destinations for the 9 or less emails. That is, there are nine or less postal letters within the range of δ ₃ -σ ₃ for morning delivery α, δ ₂ -σ ₂ for afternoon delivery β, and δ ₁ -σ ₁ for evening delivery γ. After adding such specific examples, let's start with the morning flight α.
The postal letter is sent to sorter 3. Then, the postal codes written on these postal letters are read by the optical reader 4, and then the sorting device 5 sorts them into A, B, C, D, ......X, Y, Z, etc. Postal letters are divided into destinations by area. Then, the sorted postal letters are sent to each letter accumulation room 2, which is set based on the comprehensive data information inputted to the sorter 3, through a letter conveyance mechanism 6 and a conveyor belt (not shown), where they are accumulated. Ru. In other words, 10 or more postal letters that are addressed by area from A to M are addressed to each area, such as Tokyo, Osaka, etc.
The Tohoku region...etc., etc., are collected in each letter collection room 2 for each area, and the postal letters with 9 or less addresses for each area from M to Z are compiled into comprehensive data information based on the total number of letters. Based on this, the gates (not shown) of the letter accumulation rooms 2...... of the letter accumulation rooms S ₁ to S ₆ of the group are opened, and the gates (not shown) of the letter accumulation rooms _{2 ...}
are mixed and accumulated in the accumulation chamber 2. Thereby, morning flight α is classified. Next, when the postal letter for the afternoon delivery β is placed in the sorting machine 3, the postal code is read by the optical reading device 4 in the same way as in the case of the morning delivery α, and then the postal code is read by the sorting device 5. Postal letters are classified into destinations such as B, C, D, . . ., X, Y, and Z. Then, the sorted postal letters are accumulated in each letter accumulation room 2... group that is set based on the comprehensive data information, similarly to the above-mentioned morning mail α. That is,
10 or more postal letters with destinations from A to N are accumulated in each letter collection room 2 for each area, such as Tokyo, Osaka, Tohoku region, etc. , 9 or less letters with destinations from N to Z are stored in the letter collection room 2, based on the comprehensive data information based on the total number of letters, from S ₁ to S ₃ of the group. gates (not shown) are opened, and these accumulation chambers 2 from S ₁ to S ₃
It is mixed and accumulated within... Thereby, the daytime flight β is classified. Next, when the postal letter for evening delivery γ is put through the sorting machine 3, the postal code is read by the optical reader 4 in the same way as for the morning delivery α and afternoon delivery β, and then the postal code is read by the sorting device 5. Postal letters are classified into destinations such as B, C, D, . . ., X, Y, and Z. Then, the classified postal letters are the above morning delivery α,
Similarly to the daytime delivery β, each letter accumulation room 2 is set based on the comprehensive data information and is accumulated into groups. In other words, 10 or more postal letters with destinations A to X must be sent to each area, such as Tokyo, Osaka, etc.
The letters are collected in each letter collection room 2 for each region such as the Tohoku region, etc., and postal letters of 9 or less that are addressed to each region from X to Z are compiled into comprehensive data information based on the total number of letters. Based on the writing collection room 2
The gate (not shown) of the accumulation chamber 2 of S ₁ of the group is opened, and the accumulation chamber 2 of S ₁ of the group...
Mixed accumulation within. As a result, evening flights γ are classified. In this way, enter data on increases and decreases in the number of postal letters by mail and day of the week in the statistical data information,
Based on this predicted number of letters, the letter collection room 2...
...Since we have mixedly accumulated postal letters with 9 or fewer destinations in a part of the group, we have made it possible to make the letter accumulation room 2 with 9 or fewer letters independently accumulated with 9 or fewer destinations... It can be reduced. Therefore, it is possible to eliminate the wasteful work required for nine or less mails, that is, the wasteful work of bulking up nine or fewer mails with different destinations, and it is possible to save labor. In the above-described embodiment, the case where postal letters are sorted by area has been described, but the same effect can be obtained when the postal letters are sorted by destination, that is, by postal code. Furthermore, in the above embodiment, the miscellaneous collection room was set based on the number of postal letters per mail, but data information based on the day of the week, day, season, etc. may also be used independently for processing. Processing may also be performed using data information that is a combination of the following. In addition, changes in the number of mails by month include, for example, the amount of mail being larger during New Year's holidays than in other months, and fluctuations in the number of mails by day of the week include Mondays having a higher volume than other days of the week due to the fact that Sunday's mailings are brought in. In addition, seasonal fluctuations in the number of mailings include, for example, the amount of mailings may be larger during periods when companies generate mail for payments, invoices, etc., and during election periods. Each type has its own unique statistical pattern. As explained above, according to the present invention, it is possible to reduce the number of letter accumulating chambers in which letters are independently accumulated below a certain certain number, and it is possible to save labor in the rough stacking work.

[Brief explanation of the drawing]

Fig. 1 is a front view showing a conventional automatic stacking device, Fig. 2 is a line diagram showing statistical data input into the device to set a letter stacking room in which postal letters are stacked, and Fig. 3 is a diagram according to the present invention. A front view showing the automatic stacking device, Fig. 4 is a line diagram showing the comprehensive data information that is input to the device and sets the letter stacking room in which postal letters are stacked according to the increase or decrease in the number of postal letters, and Fig. 5 is a diagram showing the information according to the same device. It is a line diagram showing an example of classification of a postal letter. 2... Letter collection room, 2a... Miscellaneous classification room.

Claims (1)

[Claims] 1 Sort postal letters by area or destination,
For items to be collected in multiple letter collection rooms, input the predicted distribution of the number of items to be sorted by region or destination, and the total number of letters to be sorted for each sorting operation or a rough estimate of the total number. The area or destination that is calculated when the number of objects less than a certain number is sorted is assigned a common letter collection room with another direction or destination that is calculated when the number of objects that is less than a certain number is sorted. How to classify postal letters.