Interpretation ID: 1984-3.30
TYPE: INTERPRETATION-NHTSA
DATE: 09/27/84
FROM: AUTHOR UNAVAILABLE; Frank Berndt; NHTSA
TO: H. Moriyoshi, Executive Vice President and General Manager, Mazda (North America), Inc.
TITLE: FMVSS INTERPRETATION
TEXT:
Mr. H. Moriyoshi Executive Vice President and General Manager Mazda (North America), Inc. 24402 Sinacola Court Farmington Hills, Michigan 48018
This responds to your letter of August 3, 1984, seeking an interpretation of the requirements of Standard No. 201, Occupant Protection in Interior Impact. You specifically inquired about the application of the requirements of section S3.5 of the standard to four possible inner door panel designs Mazda is considering.
You explained that manufacturer-installed armrests originally were simple in design and only extended a short distance sufficient to provide actual support for the arm or elbow of an occupant, but that currently manufacturers "employ inner door panel designs that embody a continous and, in some cases, quite elaborate protrusion that extend the entire length of the door and serve many additional functions, often aimed at occupant convenience." You are concerned about whether the entire inner panel design would be considered an armrest.
You enclosed a drawing of four potential designs for an "inner door panel projection...that incorporate, in addition to a specific location that would be literally considered an armrest, ...other convenience functions. These additional functions, placed in remote locations from an occupant's trajectory during an impact, might include the door handle, power window switches, ashtrays, map pockets and remote side door mirror controls." You asked whether the entire designs would have to comply with section S3.5.1(b), which you understand applies to the whole armrest. You also asked how the designs could be changed to comply with section S3.5.1(a) or (c) and whether the agency's interpretation would differ if the designs were changed so that certain portions of the design were separate components.
First, I want to confirm that the requirements of S3.5.1(b), as with the requirements of S3.5.1(a), of the standard apply to the entire armrest, while S3.5.1(c) is limited to a portion of the armrest within the pelvic impact area. Based on a review of the four designs, we have concluded that the shaded and unshaded portions of each design would be considered an armrest since each design is an integral unit which provides an area for an occupant to rest his or her arm. We cannot comment on how these designs could be changed to comply with sections S3.5.1(a) or (c) since your letter does not explain why you consider it impracticable to meet the requirements of those sections of the standard.
The agency's answer would differ if the designs shown in Figures 1, 2 and 4 were changed so that the shaded areas of those designs were a separate component located away from what you have labeled the literal armrest and had features, such as power window switches, installed in them which would preclude their use as a conventional armrest. As to Figure 3, if the shaded portion of the design which does not have a portion of the "literal armrest" on top of it were likewise moved and included functions to preclude its use to rest the arm, the agency would not consider it an armrest. It would appear that, because of the large size of the entire shaded area shown in Figure 3, you might not be able to separate it and include sufficient design features to preclude its use as an armrest. If that could be done, the agency, again, would not consider it an armrest.
As shown by your careful discussion of the purpose of the armrest requirements of the standard, you are aware that the agency is concerned about reducing injuries caused by any protrusion in the vehicle. If you decide to modify your designs so that certain portions would not be considered armrests covered by the standard, I urge you to utilize a design which will minimize occupant injuries.
Sincerely,
Frank Berndt Chief Counsel 3 August 1984
Mr. Frank Berndt Office of Chief Counsel National Highway Traffic Safety Administration 400 Seventh Street, S.W. Washington, D.C. 20590
Re: Interpretation of FMVSS 201, Occupant Protection in Interior Impact
Dear Mr. Berndt,
Mazda respectfully requests consideration of this letter seeking the interpretation of terminology used in S3.5, Armrests, of FMVSS 201, Occupant Protection in Interior Impact.
Mazda understands that the requirements of S3.5.1(b) apply to the entire "armrest". This term has been generically used to define a protrusion mounted on the inner door panel and situated in such a manner as to allow an occupant to comfortably and conveniently rest their arm or elbow. The goal was to relieve the occupant of the fatigue that often accompanies automobile trips of extended length and provide a stable platform for the driver that decreases uneven and unnecessary movement. Originally, manufacturers installed "armrests" that were quite simple in design and extended along the length of the door only a significant distance to actually provide support to the occupant. Currently, however, many manufacturers employ inner door panel designs that embody a continuous and, in some cases, quite elaborate protrusion that extend the entire length of the door and serve many additional functions, often aimed at occupant convenience.
It is in this context that some confusion arises. The obvious intent of S3.5.1 was and is to protect the occupant from potentially injurious collisions with the inner door panel. Indeed, S3.5.1(c) refers specifically to the "pelvic impact area", presumably as the location of greatest possible risk. However, S3.5.1(a) and S3.5.1(b) apply to the entire "armrest" and, in the case of designs mentioned previously, could thereby be applicable to the entire length of the inner door panel, including those locations of the inner door panel that the lower body of an occupant would not contact under an impact situation. Therefore, a possible design that could assist in the overall goal of providing occupant convenience may be prohibited by strict implementation of the term "armrest".
Mazda has conceived four possible design configurations for an inner door panel projection (see Figures 1-4) that incorporate, in addition to a specific location that would be literally considered an armrest and therefore in compliance with S3.5.1 (b) (Mazda currently considers it impractical to utilize the requirements of S3.5.1 (a) or S3.5.1 (c) relative to the depicted configurations), other convenience functions. These additional functions, placed in remote locations from an occupant's trajectory during an impact, might include the door handle, power window switches, ashtrays, map pockets and remote side door mirror controls.
Therefore, upon consideration of the preceding remarks, please examine the inner door panel configurations depicted and discuss them individually. Also, please offer any comments, suggestions or recommendations that might serve to insure adequate occupant protection, compliance with FMVSS 201, S3.5.1 (b) and maximum design flexibility. Further, please comment on the efficacy of modifying the configurations depicted so that compliance with S3.5.1 (a) or S3.5.1 (c) might be possible. Finally, please discuss any relevance that the continuity of the projection might impart on your interpretation; for example, the shaded area shown in Figures 1-4 being a separate component or piece.
Your consideration is most appreciated.
Thank you.
H. Moriyoshi Executive Vice President and General Manager HM/mls
TYPE: INTERPRETATION-NHTSA
DATE: 10/03/84
FROM: AUTHOR UNAVAILABLE; Frank Berndt; NHTSA
TO: Rodger I. Bloch, Sales & Marketing Director, Scott Air, Inc.
TITLE: FMVSS INTERPRETATION
TEXT:
Mr. Rodger I. Bloch Sales & Marketing Director Lavelle Road, P.O. Box 1745 Alamogordo, NM 88310
Dear Mr. Block:
This responds to your letter of August 15, 1984, concerning the application of Standard No. 301, Fuel System Integrity, to an air conditioning system you supply to school bus manufacturers. You explained that your system taps into the fuel system of the school bus. If your system is installed by a manufacturer as an item of original equipment on a school bus, the manufacturer of the bus, is required by Part 567, Certification, to certify that the vehicle with the auxiliary air conditioner complies with all applicable standards, including Standard No. 301.
If you are installing the air conditioners on the vehicle before its sale to its first purchaser for purposes other than resale, then you would be considered a vehicle alterer and under Part 567.7 be required to certify that the vehicle as altered complies with all applicable standards.
In addition, you, in effect, asked about how a manufacturer or alterer demonstrates that it has exercised due care in making its certification of compliance. The agency has recently written Blue Bird Body Co. concerning this issue and I am enclosing a copy of that letter.
Sincerely,
Frank Berndt Chief Counsel
Enclosure
August 15, 1984
Dear Mr. Burndt:
Scott Air is a manufacturer of bus air comfort systems (air conditioning). It has been called to our attention by a manufacturer of school buses, that FMVSS 301-75 relating to fuel integrity was a concern to them. They have taken all steps to certify compliance to this standard. We are now supplying a self contained air conditioning system that is skirt mounted on the drivers side.
Our system is mounted to the chasis of the vehicle and incased in a steel housing, it is protected also by the steel brackets, by which it is mounted, as well as, the vehicle itself. Please see the enclosed photo's. We are tapping into the original certified fuel system of the vehicle and our system holds only about 6.5 ounces of fuel.
I have been talking to Mr. Taylor Vincent of your staff and also Mr. Tom Grubbs with the engineering department. They have both indicated we should be able to secure a DO CARE certification. Would you or your staff be so kind as to issue instructions to me, so I can proceed in this matter.
Your assistance in this matter is greatly appreciated.
Sincerely, Rodger I. Bloch Sales & Marketing Director ds Enclosure: omitted.