DE8516577U1 - Clearing strip for snow plows or the like. - Google Patents

Description

PATENT ADVOCATE

DIPL.-ING.

MARTIN SCHRÖTER

5860 ISERLOHN

IM TUCKWINKEL 22 TELEPHONE 0 23 71/2 07 85

Mr

Rudolr Schotenröhr

On the Long Hedge 33

5860 Iserlohn

June 04, 1985

'Clearing strip for snow plows or the like. "

The invention relates to a clearing strip for snow plows or the like, in which between a front and a rear metal plate a preferably plate-like Body is held from rubber-elastic material.

With these scraper bars, the rubber-elastic body between the metal plates has the task of damping, in particular, the strong rattling of the scraper bar on corresponding vehicles should be prevented with Drive relatively high speed over the road to be cleared.

The frictional resistance of such clearing strips on the road surface is relatively high at these speeds and has a decisive influence on the energy expenditure. The ¹ plate-like body made of rubber

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elastic material has a frictional resistance during abrasion the front metal plate that does the clearing work.

There have also already been proposed clearing strips in which wire bodies protruding like a brush are inserted into the rubber plate are * This measure reduces the frictional resistance, but in many cases of application, in particular When clearing runways, the use of such clearing strips is not permitted because of the high wear from the runway protruding wire body.

The object of the invention is to reduce the friction of such a clearing strip on the road surface during operation to decrease.

A clearing strip is therefore used to solve this problem of the invention Proposed of this type, which is characterized in that between one or both of the metal plates and the Rubber plate one or more plates made of a highly abrasion-resistant, sliding hard plastic are arranged. As | Inexpensive material can be used, for example, correspondingly hard polyethylene.

According to a preferred embodiment of the invention, the hard plastic plate is behind the front metal plate

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arranged, with all the plates on their opposing sides Surfaces are uniformly connected, preferably by vulcanization.

The Ρΐβΐΐβ 3V3-S hard plastic represents with its lower edge a sliding layer that significantly reduces the friction of the entire scraper bar on the road surface.

The invention also includes the proposal to move the lower edge of the clearing strip from the rear metal plate to the front Bevel the metal plate pointing downwards, whereby all the plates are flush with the lower edge of the scraper bar.

The invention is explained below with the aid of an illustrated embodiment. Show it:

Fig. 1 is a partial view of a clearing strip

and
FIG. 2 shows a section along the line II in FIG.

The illustrated blade is used on snow plows or corresponding clearing vehicles. Between the front Clearing plate 4 made of metal and the rear metal plate are by vulcanization with one another at their abutting one another Surfaces fastened a plate 3 made of highly abrasion

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solid, slippery hard plastic and behind it a plate 2 made of elastic material arranged as a buffer. Instead of one plate made of hard plastic, several plates can be used. The plate made of rubber-elastic material can then be arranged between the plates made of hard plastic.

The lower edge of the entire clearing strip is from the rear Metal plate 1 beveled downwards to the front metal plate 4. All panels are flush with the lower edge.

In the upper area of the scraper bar, sleeves 5 are inserted through all the plates, which are later used for screw fastening serve the bar on a spacecraft.

Hard plastics are to be used as the material for the plates 3, which are highly abrasion-resistant, slidable and resistant to high temperatures are. Polyethylene is an inexpensive material. Materials of this type have in particular a low friction factor with high impact strength, notched impact strength and Shore hardness. Let such materials vulcanize themselves to both the steel plates and plates made of rubber-elastic material.

Claims (3)

ι · «· ι ι Protection claims 1. Clearing strip for snow plows or the like, in which between a front and a rear metal plate a preferably plate-like body made of rubber-elastic Material is held, characterized in that between one or both metal plates (1,4) and the rubber plate (2) one or more plates (3) made of a highly abrasion-resistant, sliding hard plastic are arranged. 2. clearing strip according to claim 1, characterized in that that the hard plastic plate (3) is arranged behind the front metal plate (4) and all the plates (1, 2, 3, 4) on their opposing surfaces the same material, preferably by vulcanization, are connected. 3. Clearing strip according to claim T, characterized in that that its lower edge is directed downwards from the rear metal plate (1) to the front metal plate (4) is beveled and all panels form the bottom edge flush.