Wheel blocking for an implement for ground treatment

• US 5,582,256 A
• Filed: 06/27/1995
• Issued: 12/10/1996
• Est. Priority Date: 06/27/1994
• Status: Expired due to Fees

• Current Assignee: Pamag AG
• Original Assignee: Pamag AG
• Inventors: Dummermuth, Paul
• Primary Examiner(s): Melius, Terry Lee
• Assistant Examiner(s): BATSON, VICTOR D
• Application Number:
  US08/495,237
• Time in Patent Office: 532 Days
• Field of Search: 172/395, 172/15, 56/17.1, 56/17.2, 280/33.994, 188/19, 29/81.05
• US Class Current: 172/395
• CPC Class Codes: A01B 33/087 Lifting devices; Depth regulation devices; Mountings
• CPC Class Codes: B28D 1/181 using cutters loosely mounted on a turning tool support
• CPC Class Codes: E01C 23/088 Rotary tools, e.g. milling drums for forming recesses to receive marking materials E01C23/0946

Abstract

A manually displaceable implement for ground treatment comprising a housing (1), a rotor drum (2) rotatably maintained therein and driven by a motor, a connecting piece (3) and height-adjustable running wheels (5). In the non-operating state, the running wheels (5) are lowered, so that the rotor drum (2) is raised off the ground (B) to be treated. In the process, at least one running wheel (5) rests against a stop disposed on the housing (1) and is blocked in this manner. The implement for ground treatment is secured by this blocking means (10) and does not make any uncontrolled movements, even if the drive motor of the rotor drum (2) is switched on.

Claims

1. In a manually displaceable implement for ground treatment, comprising a housing (1), a motor-driven rotor drum (2) rotatably seated in the housing (1), a connecting piece (3) and a plurality of height-adjustable running wheels (5), the rotor dram (2) displaced off the ground (B) to be treated in a lower end position of the running wheels (5), the improvement comprising:

blocking means for blocking (10) at least one of the running wheels (5), in said lower end position of said running wheels (5), said blocking means comprising a stop, said at least one of said running wheels (5) resting against said stop in said lower end position of said running wheels (5), said at least one of said running wheels (5) being brought into contact with said stop by lowering said at least one of said running wheels into said lower end position.

2. In an implement for ground treatment in accordance with claim 1, wherein the running wheels (5) are pivotably fastened on one of the connecting piece (3) and the housing (1).

3. In an implement for ground treatment in accordance with claim 1, wherein the stop is one of secured to the housing (1) and integrally formed by the housing (1).

4. In an implement for ground treatment in accordance with claim 1, further comprising a spring whereby the at least one running wheel (5) is maintained in said lower end position.

5. In an implement for ground treatment in accordance with claim 4, wherein the connecting piece (3) is fixedly connected to the housing (1).

6. In an implement for ground treatment in accordance with claim 5, wherein means for height adjustment (4) are disposed on the connecting piece (3).

7. In an implement for ground treatment in accordance with claim 1, wherein the connecting piece (3) is fixedly connected to the housing (1).

8. In an implement for ground treatment in accordance with claim 7, wherein means for height adjustment (4) are disposed on the connecting piece (3).