Rotary snow plow with feeding mechanisms

• US 4,829,684 A
• Filed: 11/10/1987
• Issued: 05/16/1989
• Est. Priority Date: 11/10/1986
• Status: Expired due to Fees

• Current Assignee: ING Alfred Schmidt GmbH 7822 St Blasien Federal Republic of Germany
• Original Assignee: Ing. Alfred Schmidt GmbH
• Inventors: Gruber, Franz
• Primary Examiner(s): Eickholt, Eugene H.
• Application Number:
  US07/119,185
• Time in Patent Office: 553 Days
• Field of Search: 37/248, 37/249, 37/250, 37/251, 37/253, 37/255, 37/256, 37/257, 37/258, 37/209-211
• US Class Current: 37/248
• CPC Class Codes: E01H 5/094 about vertical or substantially vertical axises

Abstract

In a rotary snow plow, especially one with a high plowing capacity, with two driven feeding mechanisms (7), which are disposed on either side of the centrifugal wheel (2) and, in the direction of plowing (F), ahead of the centrifugal wheel housing (1), and which rotate in opposite directions about vertical axes and the outside of which in each case is covered totally or partly by a flashing (8), which surrounds the feeding mechanism (7) tightly, the feeding mechanism (7), for the purpose of increasing the plowing performance while using energy sparingly, comprises essentially a cage-like rotor with throwing blades (4) disposed along surface lines and distributed over the circumference, the throwing blades (14), which rotate about vertical axes, also being driven and moreover in a direction opposite to the respective rotation of the feeding mechanism (7).

Claims

1. A rotary snow plow, especially one with a high plowing capacity, comprising a housing, a centrifugal wheel disposed in said housing, two driven feeding mechanisms, which are disposed on either side of the centrifugal wheel and, in a direction of plowing (F), ahead of the housing, and which rotate in opposite directions about vertical axes and an outside of each of which is covered at least partly by a flashing, which surrounds the feeding mechanism tightly, wherein each feeding mechanism comprises essentially a cage-like rotor with throwing blades disposed along surface lines and distributed over the circumference thereof, the throwing blades rotating about vertical axes and being driven in a direction opposite to the respective rotation of the feeding mechanism.

2. The rotary snow plow of claim 1, wherein the throwing blades complete only half a revolution while the feeding mechanism completes a whole revolution, the throwing blades being aligned in their foremost position of rotation approximately parallel to the plowing direction (F).

3. The rotary snow plow of claim 1, wherein the width of the throwing blades, which determines the diameter of their enveloping surface, is between 1/3 and 2/3 of the radius of the enveloping surface of each feeding mechanism.

4. The rotary snow plow of claim 1, wherein each feeding mechanism has four throwing blades, which are separated mutually by 45°

.

5. The rotary snow plow of claim 1, wherein the throwing blades are driven by means of a driving mechanism from the associated feeding mechanism.

6. The rotary snow plow of claim 5, wherein the driving mechanism is constructed as a chain drive, one chain being provided for at least one throwing blade.

7. The rotary snow plow of claim 5, wherein the driving mechanism is constructed as a planetary drive disposed in a gear casing, which rotates with the feeding mechanism and in which a central sun wheel is provided and a planet wheel is connected with each shaft of a throwing blade so as to prevent independent rotation.

8. The rotary snow plow of claim 7, wherein an intermediate wheel is disposed between the sun wheel and each planet wheel, the number of teeth of the intermediate wheel being twice that of the sun wheel, said sun wheel and said planet wheel having the same number of teeth.

9. The rotary snow plow of claim 5, wherein the driving mechanism is constructed as a belt drive, one belt being provided for at least one throwing blade.

10. The rotary snow plow of claim 7, wherein an intermediate wheel is disposed between the sun wheel and each planet wheel, the number of teeth of the intermediate wheel being twice that of the planet wheel, said sun wheel and said planet wheel having the same number of teeth.