Patent
1992-06-24
1995-06-20
Jankus, Almis
395161, 395133, 395141, G06F 1562
Patent
active
054267285
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a mechanism conceptional drawing transformation method for transforming form drawings of a structure of a machine or apparatus into mechanism conceptional drawings in order to readily understand an operation of the machine or apparatus.
BACKGROUND ART
Conventionally, as means for exhibiting an operation of a machine or apparatus, trigonometric views represented by elevational, plan and side views, an exploded view, a perspective view, an operational view composed thereof aligned in operational order, and the like have been used for illustrating the structure and the shape of the machine or apparatus, and the operation of the machine or apparatus has been explained by using such views showing the exact form of the actual machine or apparatus. Further, in order to compensate for problems when using the above-described views, a proposal for expressing mechanism drawings by using conceptional drawings as a conception approximate drawing method has been partly dealt with in, for example, "Ascending Air Current" of THE PATENT, Vol. 42, No. 11, the Patent Attorney Association, November, 1989. However, the process of how to specifically transform the form drawings into the conceptional drawings is not proposed in detail, and thus it is quite difficult to actually carry out the drawing transformation operation.
As described above, in the conventional drawing transformation method, since the views drawn on the basis of the form drawings illustrating the actual structure of the machine are used, only the expression of the machine form is emphasized, and it is not enough to understand the operation of the machine. Also, the essential points of the operation of the machine can not be explained well.
In order to overcome the aforementioned problems, there is provided the present invention, and it is an object of the present invention to provide a mechanism conceptional drawing transformation method capable of transforming conventional form drawings of a machine structure into mechanism conceptional drawings as a drawing method capable of readily understanding an operation of the machine in a short time.
DISCLOSURE OF INVENTION
A mechanism conceptional drawing transformation method according to the present invention comprises the steps of: a recognition step for recognizing mechanical operations and power transmission paths from a form view in order to transform the form view of a mechanical structure into a mechanism conceptional view in which components are symbolized; a decomposition step for decomposing the recognized mechanical operations into a plurality of groups; a symbolization step for symbolizing the components which cause or carry out the decomposed mechanical operations according to a predetermined symbol; a line connection step for connecting the symbolized components by segments corresponding to a form of the mechanical structure to assemble a line connection view; a perspective view formation step for expressing the assembled line connection view as a perspective view; and an operational symbol addition step for adding operational symbols exhibiting operational directions to the component symbols.
In the method of the invention, the recognition step for recognizing mechanical operations and power transmission paths from a form view includes: a form image reading step for inputting an image of the form view of the mechanical structure drawn on a paper into a computer; an invisible line restoration step for restoring invisible lines of overlapped parts of the read view; and a decomposition instruction step for recognizing the power transmission paths between the parts by an operator and instructing a decomposition of the figure to the computer.
In a further aspect of the invention, the decomposition step for decomposing the recognized mechanical operations into a plurality of groups includes: a figure decomposition step for decomposing the figure according to decomposition instruction data; a line thinning step for transforming image data of the decomp
REFERENCES:
patent: 4388610 (1983-06-01), Tsunekawa
patent: 4813013 (1989-03-01), Dunn
patent: 4858150 (1989-08-01), Aizawa et al.
patent: 4949388 (1990-08-01), Bhaskaran
Higdon et al. Engineering Mechanics (1955).
"The Patent" vol. 42, No. 11, p. 2, Right column, lines 12-26 1989.
"Machine Design" vol. 34, No. 12, pp. 84, 86 & 88. Dec. 1990.
"Machine Design" vol. 35, No. 1, pp. 82-83, Jan. 1991.
Jankus Almis
Mitsubishi Denki & Kabushiki Kaisha
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