This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Theories, Facts and Issues About Recliner and Track Release of Front Seats in Rear Impacts
Technical Paper
2018-01-1329
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Objective: This study involved a number of different tests addressing theories for recliner and track release of front seats in rear impacts. It addresses the validity of the theories.
Method: Several separate test series were conducted to address claims made about recliner and track release of front seats in rear impacts. The following theories were evaluated to see the validity of the issues:
- 1Recliner teeth slipping with minimal damage to the teeth
- 2Recliner teeth bypass by disengaging and re-engaging under load without damaging the teeth
- 3Recliner shaft bending and torque releasing the recliners
- 4Track release by heel loading
- 5Track release with occupant load on the seat
- 6Recliner handle rotation causing recliner release
- 7Double pull body block tests
Results: Many of the theories were found to be uncorroborated once actual test data was available to judge the merits of the issue raised. The laboratory tests were set-up to specifically address particular issues. The test data and photos document the findings.
Conclusion: The data and photos provided here demonstrate the reasonableness of the recliner and track systems used in modern seats. The testing reported here addressed issues raised and provides test data on the theories.
Recommended Content
Citation
Viano, D. and White, S., "Theories, Facts and Issues About Recliner and Track Release of Front Seats in Rear Impacts," SAE Technical Paper 2018-01-1329, 2018, https://doi.org/10.4271/2018-01-1329.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 | ||
| Unnamed Dataset 4 | ||
| Unnamed Dataset 5 | ||
| Unnamed Dataset 6 |
Also In
References
- Blaisdell , D.M. , Levitt , A.E. , and Varat , M.S. Automotive seat design concepts for occupant protection SAE Technical Paper 930340 1993 10.4271/930340
- Burnett , R. , Carter , J. , Roberts , V. , and Myers , B. The influence of seatback characteristics on cervical injury risk in severe rear impacts Accid Anal Prev. 36 4 591 601 2004
- Devlin , W.A. and Roe , R.W. The Eyellipse and Consideration in the driver’s forward field of view SAE Technical Paper 680105 1968 10.4271/680105
- Prasad , P. , Kim , A. , Weerappuli , D.V.P. , Roberts , V. , and Schneider , D. Relationships between passenger-car seatback strength and occupant injury severity in rear-end collisions: field and laboratory studies SAE Technical Paper 973343 1997 10.4271/973343
- 2002
- Viano , D.C. and Parenteau , C.S. Update on the effectiveness of high retention seats in preventing fatal injury in rear impacts Traffic Inj Prev. 16 2 154 158 2015
- Viano DC 2002
- Viano , D.C. Seat design principles to reduce neck injuries in rear impacts Traffic Injury Prevention 9 6 552 560 2008
- Viano , D.C. and White , S. Seat Strength in Rear Body Block Tests Traffic Injury Prevention 17 5 502 507 2016
- Viano , D.C. , Parenteau , C.S. , Burnett , R. , and Prasad , P. Occupant Responses in Conventional and ABTS Seats in High-Speed Rear Sled Tests with a Normally Seated Dummy Traffic Injury Prevention 19 1 54 59 2018