1、ANSI B11.5-1988 (R2008) American National Standard for Machines Ironworkers Safety Requirements for Construction, Care and Use Secretariat and Accredited Standards Developer: AMT The Association For Manufacturing Technology 7901 Westpark Drive McLean, VA 22102 Approved: August 23, 1988 Reaffirmed: J
2、uly 15, 2008 by the American National Standards Institute, Inc. ANSI B11.51988 R(02) American National Standard for Machine Tools Ironworkers- Safety Requirements for Construction, Care, and Use Secretariat and Accredited Standards Developer: The Association For Manufacturing Technology 7901 Westpar
3、k Drive McLean, VA 22102 Approved: August 23, 1988 (R02) by the American National Standards Institute, Inc. AMERICAN NATIONAL STANDARDS By approving this American National Standard, the ANSI Board of Standards Review confirms that the requirements for due process, consensus, balance and openness hav
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20、ll rights reserved. Printed in the United States of America Foreword (This Foreword is not. pan af American Natiaaal Standard Bll5-1988. Recognizing the uniqueness of ironworkers and the need for a safety standard for them, Accredited Standards Committee B11 on Safety Standards for Machine Tools est
21、ablished Subcommittee B115 in 1972, to develop the safety requirements for this equipmenL The first standard wu approved by ANSI on September 18, 1975, and reaffirmed on December 1, 1981. For the most part, this standard represents a minor revision of the original document by incorporating cbanges t
22、hat update the standard with cmrent references to other American National Standards and their illustrations, and the latest ANSI Style Manual. Producing a workable safety standard treating the construction, safeguarding, care, and use of ironworkers is complicated by the wide variety and sizes of ir
23、onworkers manufactured and in use, and by the infinite combinations of methods and opemtions used to produce parts. Safeguarding the multiple work stations for the limitless variety of workpiece cross sections is fmther complicated by the need to preserve the flexibility and universal application of
24、 iron workers-Recognizing the difficulty in defining specific guarding requirements for all applications of ironworkers without dettacting from their productivity and fleXJ.“bility, the committee ap proached its primary objective of eliminating injmies to personnel associated with ironworkers from f
25、our directions: (1) Eliminating by design cerl3in recognized construction hazards and establishing standard approaches to design so that the machines available from competitive manufacturers will have similar operational and conarol characteristics. (2) Safeguarding the point of opei3lion to protect
26、 personnel should they inadvertently expose themselves to hazards at the point of operation. (3) Eliminating by design, procedure, and process the necessity of having the operator place his hands or fingers within the point of opemtion at any time the particular work station bas not been made inoper
27、ative, thus minimizing his exposure to point-of-operation hazards. (4) Establishing guidelines for general training and specific jorelated instructions for eliminating unsafe practices and procedures. To implement these requirements, responsibilities have been assigned to the manufacturer, the recon
28、structor, the modifier, the employer, the employee, and the owner. To assist all persons concerned in complying with the requirements of this standard, all explanatory information has been placed in the right column, adjacent to the requirements to which it applies. Recognizing the difficulty of upd
29、ating equipment immediately after the approval date of the ANSI B 115-1975 standard, a three-year period was suggested before the applicable construc tion requirements of this standard become effective for former installations. All grace periods have long since expired. . Suggestions for improvement
30、 of this standard will be welcome. They should be sent to the National Machine Tools Builders Association, 7901 Westparlc Drive, McLean, Virginia 22102-4269, Attention: Safety DepartmenL This slalldard wu processed and approved for submittal to ANSI by the Accredited Slalldards Committee on Safety S
31、tandards for Machine Tools, B 11. Committee approval of the standard does not necessarily imply that all committee members voted for its approval. At the time it approved this standard, the B 11 Committee had the following members: J. W. Hart, Chairman William Atkinson, Jr, Secretary Orgflllization
32、Represellled Aerospace Industries Association af America, Inc GeJald W. Lancour Alliance af American Insurers -Joseph W. Hart American Boiler ManufactuJ:erS Association- William Axlman Fnmk:Pemn American Institute of Sreel Coosuuction -lolm Couley Org1111iza1Um Represenud NIJIM of Represe111111ive A
33、merican lnSUJliDCe Services Group- Charles Peshek American Society of Safety Engineers Alfred Auemaan Defeuse Industrial Plant Eqaipneut Center- Garland Smid1 Intemali.coal Uuion, United Auromobile, Aerospace and AgricuiJural Implemeut WOlken of America (UA W) . Barrie BJOOks MadDnery Dealers NaticJ
34、aal Assoc:iaticm -lac:k WaJker Melal Buildmg .Manufaclurers Associalica . - Gazy Beck Mcror Vehicle Manufac:lmas Assoc:ialioa -Keunelh Lauck Natioaal Assoc:ialicm of Government Iabar Officials . Jeny Skeen Naliooal EJec:trical Mauufac:larers Assoc:ialioo . James Ric:e Natiooal.Mac:bine Tool .Builder
35、s Association -Emmett McCarthy Natiooal Safety Council . Robert Jordan Natiooal Tooling the workpiece is brought to the ironworker. 3.28 Modifer. Any person who alters or modures an ironworker in such a way that it changes the safety procedures, capacity, or intended functions of the ironworker. 3.2
36、9 Momble Cover. An attachment that shields the opening of the work station on the drop-off side. 3.30 Multiple Controls. More than one actuating mechanism that may initiate ram movement at the same work station. 3.31 Normal Maintenance. Periodic upkeep and inspection of an ironworker as prescribed b
37、y tbe manufacturer, as opposed to inspection or repair. 3.32 Operator. An individual who performs opera tions on an ironworker and is responsible for controlling any machine function. 12 E320 Guard (Fixed or Adjustable). In this standard the word “guan:l“ is reserved exclusively for referring to bar
38、riers designed for safeguarding at the point of operation. E3.23 Hold-Down. For the purpose of this standard. the hold-downs and the material supports may also be considered as guan:ls and awareness barriers as long as they meet the respective functional requirements given in 5.13 and 5.1.4. E324 Ir
39、onworker. illustrations 1 and 2 represent two of the various design approaches used in the construc tion of ironworkers; however. the basic control and operational characteristics of any design approach are similar. See illustrations 1-5. 330 Multiple Controls. Subsection 4.3.6 precludes actuation b
40、y multiple controls. 3.33 Operators Station. The complete complement of controls used by, or available to, an operator on a given operation for controlling any machine func tion. 3.34 Person. An individual, corporation, partner ship, or other legal entity. 3.35 Pinch Point. Any point other than the
41、point of operation at which it is possible for a part of the body to be caught between the moving part(s) of an ironworker or auxiliary equipment. 3.36 Point of Entry. The part or an ironworker through which material is fed for shearing, punch ing, notching, coping, or forming. 3.37 Point of Operati
42、on. The area in the working plane between the f“a:ed and the movable tools. 3.38 Portable. The capability of the machine to be moved to the workpiece for the purpose of perform ing the machine function. 3.39 Presence-Sensing Device. A device designed, constructed, and arranged to create a sensing ra
43、eld, area, or plane that will detect the presence or the operator and send a signal stop or prevent huard ous motion of the machine tooL 3.40 Punching Station. The work station at which punching operations are normally performed. 3.41 Ram. The reciprocating part that transmits motion to the movable
44、tooL 3.42 Reconstructor. Any person who is responsible for and engaged in restoring or rebuilding an ironworker to its original condition and capability. 3.43 Safeguarding. The use or guards, devices, and methods to provide protection. 3.44 Shall. The word “shall,“ as used in this standard, is to be
45、 understood as denoting a manda tory requirement. 3.45 Should. The word “should,“ as used in this standard, is to be understood as denoting a recom mendation. 3.46 Single Strolce. One cycle of the ironworker. 3.47 Single-Strolce Capability. The design capability to limit the operation of the ram to
46、a single stroke even though the operating means (method) is held in the operated position. 3.48 Single-Strolce Mechanism. A mechanical arrangement providing antirepeat. AMERICAN NATIONAL STANDARD Bll.S-1988 13 AMERICAN NATIONAL STANDARD Bll.S-1988 3A9 Siz.e. To match the punch and die for proper cle
47、arance. 3.50 Slide. See Ram (3.41). 3.51 Stroke. The maximum distance the ram travels in one direction. 3.52 Structural Shetuing Stillion. The work station at which workpieces of structural sections or bars are sheared. 3.53 Work Stillion. The area on the machine where punching, shearing, notching,
48、coping, or forming is performed. 4. Construction, Reconstruction, and Modifi cation 4.1 Responsibility 4J.l Manufacturer. The manufacturer shall have the responsibility to design and construct ironworkers in accordance with this standard. 4J .2 Reconstructor or Modif“r. Any person reconstructing or modifying an ironworker shall have the responsibility to do so in accordance with this standard. 4.2 Potential HIUJUtls 4.2J Potential HIUJUtls to Personnel Associated with Moving Parts (Other than Point-of-Operation Hazards). The manufacture
