DE8626062U1 - snow plow - Google Patents

Description

·!···■ I I Î I * I

S"*

R.iNG, HANS LlCHTI

NG ₁ HEINgR LICHTI d*75ööKarlsruhe4i

duerUcherstrasse 3t
DlPUPHYS,DR.RER.NAL JOST LEMPERT TEL·.:(0721)48511

WIMA Machine and

neratßbau GmbH

In Schollenqarten 1

29 September 1986

D-7520 Bruchsal 8Z91/B6-Le

Snowpeacock

The invention concerns a snow plow for the attachment to small-

vehicles with at least one snow plow. Such snow plows are generally available in two different designs.

On the one hand, there are snow plows with an extended blade, which is then usually angled, i.e. with a

Angle not equal to 90 to the direction of travel of the snow removal vehicle, _so that the snow moves to one side and
is deposited there. Another snow plow is wedge-shaped so that the snow is moved from the middle to both sides and deposited on both sides of the path to be cleared. In addition to large snow plows for clearing roads,

, 1111111111111 (14

I I I I I I I ·

If I If It

' ·

Such snow plows are also known for attachment to small vehicles, such as snow blowers or the like. These small vehicles with smaller snow plows are used in particular for clearing paths, such as forest paths, gravel roads, private farms _or factory sites or the like.

There are applications where the path to be cleared is TOO narrow for a snow plow to be used in its straight or extended position. In these or other cases, it may also happen that snow should not be deposited to the side of the path being cleared. This is particularly the case when farmyards or factory premises are to be cleared. The aim is to then pile up the snow in a concentrated manner in one storage area. With snow plows that deposit the snow to the side, this is time-consuming and requires many and complicated clearing trips.

The invention is therefore based on the object of creating a snow plow which, while avoiding the aforementioned disadvantages, allows for great variability and thus further possible uses and, in particular, for directed clearing of snow without lateral deposits.

According to the invention, the above-mentioned task is solved in a snow plow for attachment to small vehicles with at least one clearing blade in that the clearing blade has two clearing wings that can each be pivoted independently about a vertical axis. The pivoting is possible from a wedge position through the extended position to a so-called V-position. The main advantage of the snow plow according to the invention is that the two clearing wings can be continuously brought into almost any position and in particular the V-position is possible, in which the clearing wings enclose an angle of significantly less than 180 between their clearing surfaces. In this position

I I lit

&igr; ■ &igr;

Il ft

the snow can be pushed forwards by a vehicle to a dumping area. While the movable rear wings can basically be moved around two different vertical axes so that a fixed rear shield section is arranged centrally between the two, a preferred design provides that both wings are hinged to a common axis. The rear wings can basically be adjusted manually and mechanically, for example by adjusting them using a hole pattern or similar. In a preferred design, however, double-acting hydraulic cylinders are hinged to the rear wings at a distance from the respective pivot axis.

Further designs provide that the clearing blade is designed to be pivotable about a horizontal axis to a retaining part and/or that the clearing blades are designed in their lower area with spring-loaded flaps pivotable about horizontal axes as overflow protection, whereby in particular each clearing blade has several spring-loaded flaps*

Further advantages and features of the invention emerge from the claims and from the following description, in which an exemplary embodiment of the snow plow according to the invention is explained in detail with reference to the drawing.

Fig. 1 is a schematic top view of the j snow plow in straight position, with

a stretched lateral position is shown dashed on the left;

Fig. 2 the snow plough blade in wedge position; and

Il |<1 . . I · I I < > I

Fig. 3 the snow plough's blade in V-position.-

The snow plow 1 according to the invention has a clearing blade 2 that can be attached to a small vehicle, such as a small tractor or the like, via a fastening part 3. The attachment of the clearing blade 2 is thereby oscillating around a horizontal axis 4 through a small angle range, for example by means of two disks 6 being guided in a frictional manner, one of which has curved long holes through which bolts or screws attached to the other pass, so that the two disks 6 can pivot around each other through a small angle and with them the clearing blade relative to the fastening part 3. This oscillating attachment makes it easier to clear snow over uneven areas in the work area.

A support 7 extends from the fastening part 3 in the direction of the axis 4, at the front end of which there is a pivot axis 8 for the clearing blade 2. The clearing blade 2 itself consists of two clearing blades 9, 11 which can be pivoted relative to one another about the vertical axis 8. On the back of the clearing blades 9, 11 there are piston-cylinder units 12, 13 which can be actuated from the side and which are connected to the support 4 in the area of the fastening part 3. The piston-cylinder units 12, 13 are each supplied with a fluid, preferably hydraulic oil, via two inlets 14, 16 and are actuated hydraulically accordingly.

In Figure 1, the straight position is shown in solid lines. In this position, the two clearing blades 9, 11 are almost aligned. By pulling in the piston of the cylinder and pushing out the piston of the cylinder 13 further, the clearing blades 9, 11 can be moved into the position shown in dashed lines in Figure 1.

{ I C I I 1 <■ IK >* · *

(C I » Il 1 ■ *·

TC I I «« I >lft·«

cc iti ■ asii« ·&igr;

et c i ■· «

&Lgr; ff · I

By pulling the pistons into both cylinders 12, 13 the wedge position shown in Figure 2 is achieved; while by pushing both pistons out the V position shown in Figure 3 can be set.

While the side position on the left and right allows snow to be moved to one side of the path to be cleared and deposited there, the wedge position allows a portion of the snow to be deposited on the right and left of a path. The V position ensures the right-hand side of the path is not to be deposited, especially if these paths are narrower than the straight position, then snow can be pushed in front of the snow plow over a longer distance and to a specific depositing point.

4 i lit t ' ■ * I (·'

4*1* 1t t4 t I

$ » I If f Il Il

Claims (6)

DR.ING. HANS LICHTI &ugr; c &igr;&kgr;&igr; co &igr;&igr;&Lgr;&ugr;&tgr;&igr; D-7500 KARLSRUHE 41 DIPU-ING. HEINER LICHTI _DUB lacherstrassE31 QIPL.-PHYS.IDR.REH.NAT. JOST LEMPERT tel:(0721)4BSii WIMA Machine and
Equipment Construction GmbH In Schollenqarten 1 moe 29,September 1986 �Ogr;-752�Pgr; Bruchsal 4 8291/B6-Le Protection claims 1. Snow plow for attachment to small vehicles with at least one clearing blade, characterized in that the clearing blade (2) has two clearing blades (9, 11) which can each be pivoted independently about a vertical axis (8). 2. Snow plow according to claim 1, characterized in that both clearing blades (9, 11) are hinged to a common axis (8). 3. Snow plow according to claim 1 or 2, characterized in that double-acting hydraulic cylinders (12, f . &igr;&igr; Il Ii 'I ' ' I . &igr; ill < I I · · Il ill I I I I < I I It ,· 13) are hinged. 4. Snow plow according to one of claims 1 to 3, characterized in that the clearing blade (9) is designed to be pivotable about a horizontal axis to form a retaining part (3). 5. Snow plow according to one of claims 1 to 4, characterized in that the clearing blades (9, 11) are designed in their lower region with spring-loaded flaps that can be pivoted about horizontal axes as overflow protection. 6. Snow plow according to claim 5, characterized in that each clearing blade (9, 11) has a plurality of free-loaded flaps. It Ii &igr; I If f I III I I I I I IfII Il If ti I t t ft I · t III I» I