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1、STD=JIS Z 8335-L-ENGL 1999 4733b08 0563947 TO1 I JIS I JAPANESE I N DUSTR IAL STANDARD Translated and Published by Japanese Standards Association Technical drawings- Projection methods- Part 1 :Synopsis r ICs 01.100.01 Descriptors : engineering drawings, projection (drawing) Reference number : JIS Z
2、 8315-1 : 1999 (E) 5s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 00:22:23 MSTNo reproduction or networking permitted without license from IHS -,-,- STD*JIS Z 8335-3-ENGL L999 4933b08 0
3、563950 723 M Z 8315-1 : 1999 (IS0 5456-1 1996) Foreword This translation has been made based on the original Japanese Industrial Standard established by the Minister of International Trade and Industry through deliberations at Japanese Industrial Standards Committee in accordance with the Industrial
4、 Standardization Law. Consequently JIS Z 8315 : 1984 is withdrawn and replaced with JIS Z 8315 group. By this establishment, JIS Z 8315 group becomes identical with the corresponding part of IS0 5456, Technical drawings-Projection method. JIS Z 8315 group, inclusive of forward and title, is named Te
5、chnical drawing-Projection methods, and consists of the following parts. Part 1 : Synopsis Part 2 : Orthographic Part 3 : Axonometric representations Part 4 : Central projection Date of Establishment: 1999-03-20 Date of Public Notice in Official Gazette: 1999-03-23 Investigated by: Japanese Industri
6、al Standards Committee Divisional Council on Basic Items JIC Z 8315-1 : 1999, First English edition published in 2000-03 Translated and published by: Japanese Standards Association 4-1-24, Akacaka, Minato-ku, Tokyo, 107-8440 JAPAN I n the event of any doubts arising as to the contents, the original
7、JIS is to be the final authority. r L O JSA2000 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. Pr
8、inted in Japan Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 00:22:23 MSTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS Z 8315-1 :
9、 1999 (IS0 5456-1 : 1996) Technical drawings-Projection methods- Part 1: Synopsis Introduction This Japanese Industrial Standard has been prepared based on IS0 5456-1, Technical drawings-Projection methods-Part I: Synopsis issued in 1996 without changing the technical contents. In the broad field of
10、 technical activities, various projection methods are used to represent objects. Ail these methods have their own merits, but also their inherent disadvantages. The normal technical drawing is often an orthogonal projection, in which related representations of more than one view are utilized (see JI
11、S Z 8315-2) to draw and completely define any object by means of carefully chosen views, cuts and sections. However, the execution of such two-dimensional representations requires an understand- ing of both the projection method and its interpretation, so that the observer will be able to synthesize
12、 the single views into a three-dimensional object. For many technical fields and their stages of development, however, it is necessary to provide an easily understood picture to observers. Such drawings, called pictorial represen- tation, provide a three-dimensional view of an object as it would app
13、ear to the observer. No special technical training for reading pictorial representations is necessary. Pictorial representations may be presented on their own or may supplement orthogonal drawings. Various methods of pictorial representations exist, but their nomenclatures differ, and may be used ev
14、en contradictorily. The steady increase in global technical intercommunication, as well as the evolution of methods of computer-aided design and draughting with their various types of three- dimensional representations, suggest the need for ISOEC 10 to clarify this problem. It is recommended that th
15、is Standard should be used for all types of technical drawings and in all fields of technical activities, such as: -mechanical and construction drawings; -manuals and instruction books; -X-ray views; -exploded views. The description underlined with dots in this Standard is not included in the origin
16、al International Standard. 1 Scope This Standard gives a survey of the various types of projection methods as well as their geometric relationships. Part 2 to 4 specify details for the selection and application of the various projection methods. ? 2 Normative references The following standards conta
17、in provisions which, through reference in this text, constitute provisions of this part of JIS Z 8315. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 00:22:23 MSTNo reproduction or network
18、ing permitted without license from IHS -,-,- STDmJIS Z 8315-L-ENGL 1999 4933b08 0563952 5Tb 2 Z 8315-1 1999 (IS0 5456-1 : 1996) The most recent editions (including Amendments) of the standards indicated below shall JIS Z 8114 Technical product documentation-Terms relating to technical drawings be ap
19、plied. Note : The provisions cited from IS0 10209-1 : 1992 , ? Technicalproduct documentation -.Vo_buLar-Prt.L.: Terms . relatin . . to. technlcal.dra.wi.ns I Encra! . an4 types of. geometrically similar to the corresponding features of the object. 3 . 3 exploded view Drawing of an assembly in picto
20、rial representation in which all the components are drawn to the same scale and correctly orientated relative to each other, but are separated from each other in their correct sequence along common axes. Note : This term should not be confused with representations where a covering layer is removed i
21、n order to show inner portions like those presented in section (cut-away view). r 3 . 4 principal view View of an object showing the important features, which may be chosen from the point of view of design, assembly, sales, service or maintenance. Copyright Japanese Standards Association Provided by
22、 IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 00:22:23 MSTNo reproduction or networking permitted without license from IHS -,-,- b Main features of the object in relation to projection plane Position of projection plane to projectors centr
23、e t Number of planes Type of projection Type of view projection 3 1999 (IS0 5456-1 : 1996) Z 8315-1 Infinite 4 Survey of projection methods Projection methods are defined by : -the type of projectors, which may be either parallel or convergent ; -the position of the projection plane in relation to t
24、he projectors, either orthogonal or oblique ; -the position of the object (its main features), which may be either parallel/orthogonal or oblique to the projection plane. A survey of the various possibilities and their relationships is given in Table 1. Table 1 Projection systems Orthogonal (JIS 2 8
25、315-2) ParalleVorthogonal One or more Two-dimensional Orthogonal (parallel projectors) Oblique One Three-dimensional Axonometric ParalleVorthogonal One Three-dimensional JIs 8315-3) Oblique Oblique One Three-dimensional 5 Geometrical orientation Geometrical orientation in space is given by coordinat
26、e axes and coordinate planes in accordance with the arrangement given by the right-hand rule (see JIS Z 8907). 5.1 angles to each other at the origin. letters. Coordinate axes Coordinate axes are imaginary lines in space which intersect at right There are three coordinate axes : X, Y and Z (see Fig.
27、 i), to be designated by capital t I- Fig. l 5.2 Coordinate planes Three imaginary planes in space which intersect each other at right angles. Each of the three coordinate planes is defined by two coordinate axes and includes the origin. They are designated by capital letters XY, YZ and XZ (see Fig.
28、 2). Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 00:22:23 MSTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS Z B315-L-ENGL 1999 4933608 0561954 379 I 4 Z
29、8315-1 : 1999 (IS0 5456-1 1996) Coordinate plane XZ Z Fig. 2 Note : Coordinate planes and projection planes are not always the same, therefore, if necessary, appropriate indication (designation) should be shown on the drawing. 6 are represented in true view as follows : Invariables Depending on the
30、projection method chosen, certain features of the object 6.1 The central projection invariable is : projection plane figures lying in planes parallel to the projection plane are similar. -the size of angles in planes which are parallel to the projection plane; therefore the 6 . 2 Oblique projection
31、invariables are : -the parallelism of lines, unless they are parallel to the projection lines ; -the divisional ratio of lines ; -the size of angles, length of lines and all plane figures in planes parallel to the projection plane. 6 . 3 Orthogonal projection invariables are : -the parallelism of li
32、nes, unless they are parallel to the projection lines ; -the divisional ratio of lines ; -the size of angles, length of lines and all plane figures in planes parallel to the projection -right angles, if one side of the right angle in the object is parallel to the projection plane. plane ; Copyright
33、Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 00:22:23 MSTNo reproduction or networking permitted without license from IHS -,-,- 5 . Z 8315-1 : 1999 (IS0 5456-1 : 1996) Annex A (informative) Biblio
34、graphy i IS0 128 : 1982, Technical drawings-General principles of presentation. General principles . . oxpresentation. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 00:22:23 MSTNo reprodu
35、ction or networking permitted without license from IHS -,-,- Errata for JIS (English edition) are printed in Standardization Journal, published monthly by the Japanese Standards Association, and also provided to subscribers of JS (English edition) in Monthly Information. E r r a t a will be provided
36、 upon request, please contact: Standardization Promotion Department, Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN TEL. 03-3583-8002 FAX. 03-3583-0462 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 00:22:23 MSTNo reproduction or networking permitted without license from IHS -,-,-