Seat belt anchorage test pdf

Strength analysis of seat belt anchorage according to ece r14. The force required to detach the anchorage was less than the minimum force required by fmvss no. Annex 7 dynamic test as an alternative to the safety belt anchorages static strength test annex 8 dummy specifications. The bench is dedicated to test the resistance of the seat belt anchorages of one or several car seats. Coordinates for the anchorage locations are listed in table 1. Pdf strength analysis of seat belt anchorage according to ece r. The seat and seatbelt anchorage s met the load requirements of regulation ece r14. A secondrow belt was used to ensure sufficient webbing length for all package conditions. To guarantee proper function of the seat belt system, belt anchorages have to resist defined static test loads that represent an vehicular impact. Any surface coating or material not intended for permanent retention on the metal parts during service life shall be removed prior to preparation of the test specimens for testing. Figure 3 undeformed state and comparison between lsdyna simulation results and experimental results for the fmvss test summary both methods, the implicit static an the explicit dynamic, can produce realistic results for the strength analysis of seat belt anchorage.

Seat belt anchorage locations have a strong effect on occupant protection. We have static load fixtures and equipment ready to test your vehicle. Static pull test ensuring seat belt anchorages for m1, n1 m2 and n2 vehicles comply to reg 14 standards. The seat belt anchorage prescribed area, which includes seat belt mounting points where a seat belt is attached to a seat frame, will be assessed for corrosion, strength, continuity and security. Seat belt anchorage test summary a seatbelt anchorage pull test was conducted to category m2 on the seatbelt anchorages of the seat specified below, to the requirements of regulation ece r14. Contact us today to discuss your r14 test requirements. Cup holder environmental and mechanical stability test. This paper describes the innovative design modifications done to meet the seat belt anchorage test. Inspection during and after static tests for safetybelt anchorages. Test method 210 seat belt anchorages january 2010 is to be used for demonstrating compliance with the requirements of section 210 of schedule iv to the. Hence, it is necessary to have a standard for safety belt anchorages. For seat belts that are attached to the seat, also verify the seats are attached to the seat anchors and the seat anchors are attached to the vehicle.

Development of a representative modifying some features. Ece r14 and fmvss210 are tests to ensure sufficient strength of all anchorage points. Ece r14 and fmvss 210 are tests to ensure the strength of the seats, the seatbelts and the anchorage points. Posttest a8 a17 belt anchor, p3, pretest a9 a18 belt anchor, p3, posttest a9 a19 belt anchor, p3, pretest a10. Belt anchorages means the parts of the vehicle structure or the seat. Body harness should be tight, fall protection safety. In these tests high forces are applied to the seatbelts over loading devices.

The first generation of the three point safety belt, the static belt, was a very good restraint provided it was well adjusted with only a small amount of slack present. Occupant protection in interior impact c20155105 dtnh2211d00246 g15i7001. Because a seatbelt anchorage needs to be able to withstand significant crash forces, owners of. Seat belt without a proper anchorage does not serve any purpose. Automotive vehicles safety belt anchorages specifications. This document supplements nhtsas march 2012 notice of proposed rulemaking nprm to amend federal motor vehicle safety standard fmvss no. A method for certifying safe seat belt fit christina m.

Any rigid frame can be used to support the test seat and seat belt system. The frame used to support the test seat also supports the anchorage locations for the seat belt system. Booster seat belt fit evaluation guidelines for ratings. This nprm proposes to amend federal motor vehicle safety standard no. Assessing the restraint performance of vehicle seats and belt geometry optimized for older children. These anchorages must be adjustable, because they are moved to different positions during testing. Where a safety belt is mounted to a seat frame the condition around the seat mounting points must be checked. Low volume vehicle technical association incorporated.

Figure 2 alternative body block for centre positions 2. Floormounted anchorage points may need to be inspected from underneath the vehicle. A parametric analysis of the effects from child size, seat belt anchorage locations, seat cushion length and seat stiffness on the injury predictors of child passengers aged between 6 and 12 in. Rollover deaths are now a full onethird of all occupant fatalities, or over 10,000 each year. A seat belt assembly with a sliding latchplate and retractor from the second row of a model year 2010 minivan was mounted on customized fixtures designed to permit adjustment of belt anchorage locations. Federal motor vehicle safety standard fmvss 210 specifies requirements for the layout of the anchorages relative to the seating reference point and seat back angle established by the sae j826 hpoint manikin. The problems encountered and the approach used are presented and a comparison between test and analysis will be given. Experimental assessment of seat belt anchorage forces in us and eu tests conclusions 3. A test method and fem finite element method were performed for the seat according to the seat belt anchorage strength test process. Annex 7 dynamic test as an alternative to the safetybelt anchorages static strength test annex 8 dummy specifications.

The office of vehicle safety compliance ovsc performed the test. A seat belt reduces the likelihood of death or serious injury in a traffic collision by reducing the force of secondary impacts with interior strike hazards, by keeping occupants. Without disturbing the integrity of each seat belt and anchorage, verify that each seat belt is attached to the anchorage. The results of a fishers exact test indicate that there was no. The seat and seatbelt anchorages met the load requirements of regulation ece r14. Evaluating the effectiveness of virtual validation methods. Innovative seat belt system for reduced chest deflection. The anchorage, attachment hardware, and attachment bolts for a type 2 or automatic seat belt assembly, installed to comply with fmvss 208, shall withstand. Appendix d appendix of standard dynamic testing an alternative test to. Design strategies for meeting ece r14 safety test for. Comparison of technical requirements for seat belt anchorage in fmvss 210207 and unece regulation no 14 the strength test requirements for seat belt anchorages applicable for the eu are set out in unece regulation no 14, sections 6. Pull the webbing of each safety belt against its anchorage to see that it is.

The constraints are applied by 3 to 9 hydraulic actuators acting on several anchorages simultaneously and in define time less than one second for the high speed model. Assessing the restraint performance of vehicle seats and. April 2004 rolling over on safety 2 yet the industry and bush administrations statements require a thorough analysis of belt performance in rollover crashes and issuance of a federal motor vehicle safety standard. Classic industries offers 1969 dodge dart seat belt hardware, 1969 dodge dart seat belts, and 1969 dodge dart shoulder belts. Verify there is a seat belt at each seating position yes no 4. An existing test rig, specifically designed to test seat and sea t belt anchorages, was used for this safety testing. Distribution of belt anchorage locations in the second row. Seat anchorage means the system by which the seat assembly is secured to the. It may be necessary to cut the test vehicles headlining material or cutremove trim panels in order to verify the existence of shoulder belt anchorage provisions. Types and dimensions of the safety belt anchorage, seat anchorage and the. Anchorages for seat belt assemblies that meet the frontal crash protection requirements of s5. As certified child passenger safety technicians, all observers.

Early simulations revealed some structural short falls that demanded cabin improvements in order to fulfill regulation requirements for the seal belt anchorage test. Effectiveness evaluation for seat parts by seat belt anchorage. Innovative seat belt system for reduced chest deflection bengt pipkorn autoliv research. Proper seat and seat belt anchorage testing is important for adhering to several canadian motor vehicle safety standards cmvss and federal motor vehicle safety standards fmvss. Good correlation with the test is achieved in terms of deformations. A seat belt also known as a seatbelt or safety belt is a vehicle safety device designed to secure the driver or a passenger of a vehicle against harmful movement that may result during a collision or a sudden stop. The belt was split at the buckle and the lower end of the. Fall protection equipment must be worn when working at a height.

Pdf strength analysis of seat belt anchorage according. Vosc can complete the seat belt anchorage test on your seat either invehicle or fixed to a rigid structure. Pdf analysis of seat belt anchorage strength for vehicles. Pelvic restraint means a seat belt assembly or portion thereof intended to restrain movement of the pelvis. Inflatable shoulder belts and inboard upper anchor.

Tests under safety regulations on seat are static strength of headrest ece r17, shock strength, frontal collision, rear collision, frontrear moment strength. All components of the sytems, namely seats, seat and belt anchorages have to resist. In addition, identifying possible failure points and recommending design improvements can help manufacturers reduce risk. Three belt parameters were studied in this test series. Except for sidefacing seats, the anchorage, attachment hardware, and attachment bolts for a type 1 seat belt assembly or the pelvic portion of a type 2 seat belt assembly, if voluntarily installed, or the pelvic portion of a type 2 seat belt assembly or automatic seat. National standards of the peoples republic of china safety belt. Introduction in 2012, tmr vehicle standards, in conjunction with klippan a seat belt manufacturer, created vehicle standards instructions 10 seatbelt assessment. The fad consists of an upper torso portion and a pelvic portion hinged together to form a onepiece device. During testing, the passenger side rear outboard seat belt anchorage detached from the vehicle.