(19)
(11) EP 2 662 493 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
08.04.2015 Bulletin 2015/15

(43) Date of publication A2:
13.11.2013 Bulletin 2013/46

(21) Application number: 13166294.2

(22) Date of filing: 02.05.2013
(51) International Patent Classification (IPC): 
E01H 5/06(2006.01)
 B60R 9/06(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 07.05.2012 EE 201200007

(71) Applicant: Meiren Engineering OÜ
11216 Tallinn (EE)

(72) Inventor:
  • Renser, Raoul
    11216 Tallinn (EE)

(74) Representative: Nelsas, Tónu 
AAA Patendibüroo OÜ Tartu mnt, 16
10117 Tallinn
10117 Tallinn (EE)

   


(54) Support frame of a road maintenance device


(57) The invention provides a pivotable and liftable support frame for plough and vehicle, which main element is a bearing beam 2, which can be lifted up-down by lift cylinder 3 and turned to left-right by beam move cylinder 4. The frame of the construction acts as double parallelogram. Namely parallelogram acting in vertical plane is formed by bearing beam 2 and connecting element 5 in cooperation with the plough 1 and fixing mount 6 on the vehicle, parallelogram acting in horisontal plane is formed by bearing beam 2 and turn cylinder 7 in cooperation with the plough 1 and fixing mount 6 on the vehicle. Support frame according to the invention differs in that due to the use of connecting element 5 the support frame maintains feature of traditional "parallelogram" of the snow ploughs, which assures that the raised plough in transport position remains parallel to the ground.







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