The Effect of Windscreen on Field of Vision in Tractors
Öz
Tractors are used in dusty and muddy conditions because of its functionality. However,
apparatus using for increasing the field of vision in tractors can not eliminate the risks associated
with these conditions. In some situations, windscreen may be entirely covered with mud and field
of vision may be limited by the only part of the wipers sweep. Efficiency of tractor wipers are
assessed according to the current regulations(in respect to the legislation issued by Ministry of
Science, Industry and Technology). “2008/2AT Type Approval Legislation related to Field of view
and windscreen wipers Agricultural Wheeled Tractors or Forestry Tractors” ( Valid in Turkey and
European Countries) and/or equivalent regulation “R-71 Approval of Agricultural and Forestry on
drivers’ field of vision” (valid in countries which are member of United Nations).
In this study, a research was carried out on agricultural tractors equipped with a cab in accordance
with aforementioned legislation. These two tractors have different track width, and they operated
by three expert drivers. With reference to “Type Approval Regulations 2008/2/AT and 2009/66
related to Steering Equipment of Agricultural Wheeled and Forestry Tractors” a special 100 meters
‘S’ shaped track formed by 2 circles has been designed. Test track was formed in respect to current
regulations and average rural road and its border determined as 3 and 4 meters wide by using
pins. Trials were carried out in two different speeds; at constant speed and normal drive and
windscreen was clear and dirty. After trials, it was observed that number of pins overthrown were
variable depends on operator’s experience, track width or high clearance shape of tractor, speed
and windscreen’s conditions or type. The assessment of Agricultural and Forestry Tractors in this
research showed the current regulations or standards cannot provide enough security. For that
reason, it was concluded that current regulations and standards should be revised in order to be
able to provide enough driving security.
Anahtar Kelimeler
Kaynakça
- Lund M., L. Butters, 2011, An Investigation and Comparison into Operator Field of Vision for Modern Tractor Cabs.
- Scientific Papers, UASVM Bucharest, Series A, Vol. LIV, 2011, ISSN 1222-5339.
- Agricultural Tractor Driver’s Limitations of Visual Transmission in Aspect of Road Safety in Poland. TEKA Kom. Mot. Energ. Roln., 2005, 5, 158-167.
- Perktaş M.S, 2007, Türkiye’de Traktörlerin Karıştığı Trafik Kazalarının Değerlendirilmesi, Yüksek Lisans Tezi, Gazi Ünv. Fen Bilimleri Enst.
- (2009/66/AT) Type Approval Regulation Related to Steering Equipment
- (2008/2/AT) Tekerlekli Tarım veya Orman Traktörlerinin Görüş Alanı ve Ön Cam Silecekleri ile İlgili Tip Onayı Yönetmeliği.
Ayrıntılar
Birincil Dil
İngilizce
Konular
-
Bölüm
Araştırma Makalesi
Yayımlanma Tarihi
1 Haziran 2014
Gönderilme Tarihi
24 Mayıs 2014
Kabul Tarihi
15 Temmuz 2014
Yayımlandığı Sayı
Yıl 2014 Cilt: 10 Sayı: 3