JPH04322955A - Display method of work indicating slip - Google Patents

Abstract

PURPOSE:To provide a display method of each work indicating slip that calls forth an operator, whose attention has become vague due to a continuation of the same work, to pay attention to an alteration of job contents and makes any misoperation preventable, in the work indicating slip attached at every work in a manual line where various works for assembling multispecified products are mixedly flowing as in an automotive engine manufacturing line. CONSTITUTION:An indicating part different from and adjacent work is made to be printed by a printer for printing out two work indicating slip 5a, 5b as a turnover display part 6. Black-and-white turnover characters are printed on this turnover display part 6, thereby calling upon an operator to pay attention to the print and preventing any misoperation from occurring.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a method for displaying work instruction sheets used in lines where workpieces of various specifications flow together, such as an automobile engine production line, and in particular, the present invention relates to a method for displaying work instruction sheets used in a line where workpieces of various specifications flow together, such as an automobile engine production line. This invention relates to a display method that can clearly display the following information.

0002

2. Description of the Related Art In recent years, it has become common practice in manufacturing plants to assemble products with multiple specifications on a single production line. For example, in the case of automobile engines, there are DOHC and SOHC engines with the same displacement, and the parts used may differ between domestic specifications and export specifications due to differences in regulations, fuel, etc. On a line that assembles such multi-specification products, a work instruction sheet printed out from a computer is attached to each work support stand on which the work is carried, and each worker at his or her station can follow the work instructions that vary depending on the work. The worker reads the instructions on the form, selects and assembles the specified parts, and performs other tasks.

0003

[Problems to be Solved by the Invention] However, in conventional work instruction forms, the same display is made regardless of whether or not there is a change in the contents of the instructions, and it is necessary to read them with sufficient caution. However, although workers work while looking at the work instruction sheet, if the same type of work continues to be done, or even if the work is different but the worker is in charge of the same work, their attention gets distracted and sometimes There is a risk that you will not look at the work instruction sheet. In such a situation, if a workpiece of the same model but one different model comes in, or if the worker is in charge of a different part and requires a different part, the work instruction sheet will indicate this. Even though the instructions were accurate, there were cases where the instructions were overlooked and the work was done incorrectly.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a method for displaying a work instruction sheet, which can clearly indicate that the contents of a work instruction have changed, call the worker's attention, and prevent erroneous work due to carelessness. With the goal.

[0005]

[Means for Solving the Problems] The present invention has been made to achieve the above-mentioned object, and it is possible to mix a plurality of types of workpieces with different specifications, and to send work instructions to different workers depending on the workpieces using a computer. In a manufacturing line that uses work instruction sheets that are printed out and attached to each work, only the display part of the work instructions that is different from the previous work is displayed by changing the display color or display text to prevent changes in the work instructions. This is a method of displaying a work instruction sheet, which is characterized by clearly displaying.

[0006]

[Operation] According to the above-mentioned means, the worker's attention can be called to attention by changing the display (color, font, etc.) of only the part of the work instruction that is different from the previous work to the part of the display of the same work instruction. Therefore, even if a different task must be performed after consecutively performing the same task, the worker can easily recognize changes in the work instructions, thereby preventing erroneous work due to carelessness.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

In an automobile engine manufacturing line, various unfinished engines (with different specifications) are passed on one line.
It is common for workpieces to be transported one after another. In other words, engines have different displacements, engines with the same displacement but different camshaft types, engines with turbochargers or superchargers, naturally aspirated engines, and fuel injection engines. There are various specifications, such as those that use a carburetor, and those that use different parts depending on the destination, regulations, fuel, etc. In order to accommodate the manufacture of these multi-specification engines, various work instruction sheets are created for each workpiece using computer management.

FIG. 2 shows a part of an automobile engine assembly line.
This is shown and explained below. A workpiece 4 is supported by suitable means on a workpiece support stand 3 that moves in the direction of a white arrow 2 on the assembly line 1, and a work instruction sheet 5 is attached next to it. As shown in FIG. 3, the workpiece support stands 3 move sequentially in the direction indicated by the white arrow 2, and here the workpiece support stands 3a, 3b, and 3c are lined up in this order from the right side. Each work support stand 3a, 3b, 3c has a workpiece 4a, 4b,
4c is supported, and work instruction sheets 5a, 5b, and 5c are attached.

[0010] The work instruction sheet 5 is of the form shown in FIG. 1, for example, and the type and manufacturing number of the finished product are specified for each workpiece. , sequence No. In addition, work instructions such as assembly part numbers are printed. According to the work instruction form display method of the present invention, if the work instruction contents are exactly the same as the previous work, the work instruction sheet 5a shown in FIG. 1(A) is attached, and if the work instruction contents are different. In this case, as shown in FIG. 1(B), a work instruction form 5b with an inverted display section 6 in which only the display characters of different parts of the work instruction are printed in black and white inverted is attached. In addition, production No. and sequence no. Items that are necessarily displayed differently for each work, such as , do not need to be displayed in reverse video.

Hereinafter, the proper use of the work instruction sheets 5a and 5b will be explained in detail based on the arrangement of the workpieces shown in FIG. Here, the specifications of the work 4a are the same as the previous work whose illustration is omitted, but the specifications of the work 4b and the work 4c are different from the work 4a. Therefore, a work instruction sheet 5a without a reverse display section 6 is attached to the workpiece 4a, and a work instruction sheet 5b with a reverse display section 6 for the model, assembly part number, etc. is attached to the next workpiece 4b. will be done. In addition, the work instruction form 5c attached to the work 4c is
If the specifications of the workpiece 4c are the same as the workpiece 4b, the reverse display section 6 will not be provided. That is, on the work instruction sheet 5c in this case, the reverse display section 6 of the work instruction sheet 5b is displayed in normal print, and the manufacturing number. and sequence no. will be displayed differently (generally with consecutive numbers). Or work 4
If the specifications of c are different from those of the work 4b, only the items that are different from the work instruction form 5b are highlighted on the work instruction form 5c.

Next, an outline of an example of the process up to the creation of the work instruction form 5 mentioned above will be explained with reference to FIG. This engine assembly line is managed by a host computer 11, and intermediate controllers 12 and 1 are connected to the host computer 11 at important points on the line as needed.
3 is placed. Note that the number of intermediate controllers varies depending on various conditions such as the scale of the assembly line. The host computer 11 issues a cutting instruction to the work stock device 14 based on the input production plan, and also sends a work production number to the intermediate controller 12. and type information and equipment control information, and provides work instruction information to the intermediate controller 13. Intermediate controller 1
2 controls an automatic assembly line for the works cut out from the work stock device 14, and inputs individual information and equipment control information of each work into the IC memory 15. When the process on the automatic assembly line is completed, the workpiece is transferred to the next manual line, and at the same time, the individual information in the IC memory 15 is input to the intermediate controller 13 via the IC memory 16. The intermediate controller 13, which receives the information from the host computer 11 and the IC memory 16, compares the input individual information with that of the previous work, and creates a work instruction form 5 in which only the parts with different display contents (work contents) are inverted in black and white. The display content data is output to the printer 17 so as to be printed. The work instruction sheet 5 created in this way is attached to the workpiece support stand 3 of each workpiece 4, and is placed on the manual assembly line together with the workpiece.
sent to.

As described above, by attaching the work instruction sheet 5 on the workpiece support stand, in which only the parts that differ from the previous workpiece are displayed in reverse black and white, the worker can be notified that the work contents at his/her own station have changed. This makes it easy to recognize and prevent inadvertent work errors.

[0014] In the embodiments described above, it has been explained that the parts where the instruction content differs from the previous work are printed in black and white inversion, but in other embodiments, in addition to changing the font, underlining It is possible to distinguish them by drawing them out or surrounding them with a frame. Alternatively, if there is sufficient space, the size of the printed characters may be changed. Additionally, by adopting a system that can print using multiple colors, it will not only be possible to indicate changes in instruction content by differentiating the printed colors, but also to distinguish between positions based on the displayed colors. It is also possible to simultaneously print a display indicating a change in the instruction content by reverse display.

Furthermore, although the above embodiment has been described as being applied to an automobile engine assembly line, in an assembly line where a plurality of products with different specifications flow, workers select parts based on work instruction sheets. In such a case, it goes without saying that the method of displaying work instruction sheets of the present invention is applicable to all products regardless of the type of product.

[0016]

Effects of the Invention As explained above, according to the work instruction sheet display method of the present invention, by changing the printing of instruction parts that are different from the previous work by reversing black and white, etc., attention can be improved by continuously performing the same work. It is possible to call attention to distracted workers and prevent incorrect work.

[Brief explanation of drawings]

FIG. 1 shows an example of the format of a work instruction form according to an embodiment of the present invention, in which (A) is a diagram without a reverse display section, and (B) is a diagram with a reverse display section.

FIG. 2 is a schematic perspective view showing an example of a work flowing through an assembly line in which the work instruction sheet of FIG. 1 is used.

FIG. 3 is a diagram showing a part of the assembly line in which the works of FIG. 2 sequentially flow;

FIG. 4 is a block diagram illustrating an example of a process until the work instruction form of FIG. 1 is printed out.

[Explanation of symbols]

1 Assembly line 3 Work support stand 4 Work 5, 5a, 5b Work instruction sheet 6 Reverse display section

Claims (1)

[Claims] [Claim 1] Mixing multiple types of workpieces with different specifications,
In a manufacturing line where work instructions to different workers for different workpieces are given by work instruction sheets printed out from a computer and attached to each workpiece, only the display parts of the work instructions that are different from the previous workpiece are colored or A method for displaying a work instruction form, characterized in that changes in work instructions are clearly displayed by changing display characters.