ANSI ASABE 3776-1-2012 Tractors and machinery for agriculture - Seat belts - Part 1 Anchorage location requirements.pdf

1、 ASABE/ISO 3776-1:2006 MAY2012 (R2016) Tractors and machinery for agriculture Seat belts Part 1: Anchorage location requirements American Society of Agricultural and Biological Engineers ASABE is a professional and technical organization, of members worldwide, who are dedicated to advancement of eng

2、ineering applicable to agricultural, food, and biological systems. ASABE Standards are consensus documents developed and adopted by the American Society of Agricultural and Biological Engineers to meet standardization needs within the scope of the Society; principally agricultural field equipment, f

3、armstead equipment, structures, soil and water resource management, turf and landscape equipment, forest engineering, food and process engineering, electric power applications, plant and animal environment, and waste management. NOTE: ASABE Standards, Engineering Practices, and Data are informationa

4、l and advisory only. Their use by anyone engaged in industry or trade is entirely voluntary. The ASABE assumes no responsibility for results attributable to the application of ASABE Standards, Engineering Practices, and Data. Conformity does not ensure compliance with applicable ordinances, laws and

5、 regulations. Prospective users are responsible for protecting themselves against liability for infringement of patents. ASABE Standards, Engineering Practices, and Data initially approved prior to the society name change in July of 2005 are designated as “ASAE“, regardless of the revision approval

6、date. Newly developed Standards, Engineering Practices and Data approved after July of 2005 are designated as “ASABE“. Standards designated as “ANSI“ are American National Standards as are all ISO adoptions published by ASABE. Adoption as an American National Standard requires verification by ANSI t

7、hat the requirements for due process, consensus, and other criteria for approval have been met by ASABE. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement m

8、eans much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made toward their resolution. CAUTION NOTICE: ASABE and ANSI standards may be revised or withdrawn at any time. Additionally, procedure

9、s of ASABE require that action be taken periodically to reaffirm, revise, or withdraw each standard. Copyright American Society of Agricultural and Biological Engineers. All rights reserved. ASABE, 2950 Niles Road, St. Joseph, Ml 49085-9659, USA, phone 269-429-0300, fax 269-429-3852, hqasabe.org ASA

10、BE/ISO 3776-1:2006 MAY2012 (R2016) Copyright American Society of Agricultural and Biological Engineers 1ASABE/ISO 3776-1:2006 MAY2012 (R2016) Approved June 2012 as an American National Standard; reaffirmed as an American National Standard December 2016. Tractors and machinery for agriculture Seat be

11、lts Part 1: Anchorage location requirements These materials are subject to copyright claims of ISO and ASABE. No part of this publication may be reproduced in any form, including an electronic retrieval system, without the prior written permission of ASABE. All requests pertaining to the ASABE/ISO 3

12、776-1:2006 (MAY2012) standard should be submitted to ASABE. This standard was reviewed for adoption by the ASABE Agricultural Machinery Operator Comfort Technical subcommittee, and has been formerly approved by the Power and Machinery Division. Adopted by ASABE May 2012; approved as an American Nati

13、onal Standard June 2012. Reaffirmed by ASABE and ANSI December 2016. Keywords: Anchorage, Seat belts, Self-propelled machinery, Tractors 0 Foreword 0.1 ASABE/ISO 3776-1:2006, Agricultural Tractors and machinery for agriculture Seat belts Part 1: Anchorage location requirements, is an adoption withou

14、t modification of the identically titled ISO standard ISO 3776-1:2006, Agricultural Tractors and machinery for agriculture Seat belts Part 1: Anchorage location requirements. 0.2 ASABE/ISO 3776-1:2006 specifies the location, relative position and threaded hole dimensions of the anchorages for pelvic

15、 restraint (seat) belt assemblies intended to be used by the operators of agricultural tractors and self-propelled machinery. 0.3 One normative reference is listed in ISO 3776-1:2006. This reference has been reviewed and accepted as part of the adoption of ASABE/ISO 3776-1:2006. 0.4 This standard ha

16、s been approved as an American National standard by ANSI (American National Standards Institute). Text of ISO 3776-1:2006, Agricultural Tractors and machinery for agriculture Seat belts Part 1: Anchorage location requirements, follows. 1 Scope This part of ISO 3776 specifies the location, relative p

17、osition and threaded hole dimensions of the anchorages for pelvic restraint (seat) belt assemblies intended to be used by the operators of agricultural tractors and self-propelled machinery. 2 Normative references The following referenced documents are indispensable for the application of this docum

18、ent. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 5353, Earth-moving machinery, and tractors and machinery for agriculture and forestry Seat index point ASABE/ISO 3776-1:2006 MAY201

19、2 (R2016) Copyright American Society of Agricultural and Biological Engineers 23 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 anchorage provision to transfer forces applied to the seat belt assembly to the structure of the tractor or the mac

20、hine 3.2 seat belt assembly belt, including any buckle, length adjustor, retractor, and means for securing to an anchorage, that fastens across the pelvic area to provide pelvic restraint during operation and roll-over conditions 3.3 seat belt system seat belt assembly with anchorages 4 Anchorages 4

21、.1 Choice of anchorage location Each seat belt system shall have two anchorages. If the seat does not swivel or have a suspension system, the seat belt assembly may be anchored to the seat or the tractor/machine at any point within the hatched zone shown in Figure 1. Alternatively, the seat belt ass

22、embly shall be attached to the anchorages on the seat near the rear corners of the seat cushion within the hatched zone shown in Figure 1, such that the seat belt assembly moves with the seat cushion at all times. Belts, cables, or similar flexible devices may be used to transfer seat belt assembly

23、loads from the seat anchorages to the tractor or self-propelled machine. 4.2 Relative position of anchorages 4.2.1 General The anchorages shall be positioned within the hatched zone shown in Figure 1 for example, below a line at 10 to the horizontal and behind the vertical line, through the seat ind

24、ex point (SIP). The anchorages, B1 and B2, shall be at a horizontal distance of not less than and not more than from the seat longitudinal plane of symmetry. However, if the seat structure makes it necessary, this lower limit may be reduced, provided suitable arrangements have been made to ensure an

25、 appropriate spacing of the webbing where in contact with the operators body. 4.2.2 Seat index point The SIP (see Figure 1) shall be determined in accordance with ISO 5353, or its position with respect to the seat shall be as specified by the seat manufacturer. 4.2.3 Webbing angle to horizontal The

26、angle of the webbing to the horizontal plane shall be as near as possible to 45 for all normal driving positions of the seat. The angle may vary from 45, nevertheless, in no driving position shall it be less than 10 or greater than 75. See Figure 1. ASABE/ISO 3776-1:2006 MAY2012 (R2016) Copyright Am

27、erican Society of Agricultural and Biological Engineers 3Key B1 anchorage (right side) B2 anchorage (left side) 1 preferred angle of webbing 2 seat index point (SIP) Figure 1 Location and relative position of anchorages 4.3 Dimension of anchorage threaded holes An anchorage shall consist of a thread

28、ed hole of 7/16-20 UNF 2 B. The axis of the threaded hole shall be at 90 5 to the seat longitudinal plane of symmetry. Where a seat belt is designed, fitted and supplied with the tractor or machine by the tractor/machine manufacturer, alternative thread sizes, for example, 1/2-13 UNC 2A or M12, may

29、be used, provided the anchorages supplied comply with all the other requirements of this part of ISO 3776. 4.4 Equivalence with ISO 6683 Seat belt anchorages fulfilling the relevant requirements of ISO 6683 are also in conformance with this part of ISO 3776. Bibliography 1 ISO 6683, Earth-moving machinery Seat belts and seat belt anchorages Performance requirements and tests