Measuring apparatus for a mower

• US 7,568,392 B1
• Filed: 03/19/2008
• Issued: 08/04/2009
• Est. Priority Date: 03/19/2008
• Status: Active Grant

• Current Assignee: Kubota Corporation
• Original Assignee: Kubota Corporation
• Inventors: Yamaguchi, Masatoshi, Koike, Kazuo
• Primary Examiner(s): Allen; Andre J
• Application Number:
  US12/051,828
• Time in Patent Office: 503 Days
• Field of Search: 737/56, 737/14, 562/03
• US Class Current: 73/714
• CPC Class Codes: A01D 34/82 Other details

Abstract

A measuring apparatus for a mower includes a floor defining a downward recess with respect to a floor surface, and an air speed measuring device or air pressure measuring device disposed in the recess for measuring a speed or pressure of air blown by the mower. The measuring device has air speed detecting elements or air pressure detecting elements. The air speed detecting elements or air pressure detecting elements have detecting heights including a height level with the floor surface.

Claims

1. A measuring apparatus for a mower comprising:

a floor defining a downward recess with respect to a floor surface; and

an air speed measuring device disposed in said recess for measuring a speed of air blown by the mower, said air speed measuring device having one or more air speed detecting elements, and said air speed detecting elements being height adjustable to measure air speed at a plurality of heights including above, below, and substantially level with the floor surface.

2. A measuring apparatus as defined in claim 1, further comprising a measuring device moving mechanism for moving said air speed measuring device along a direction in which said floor surface extends.

3. A measuring apparatus as defined in claim 1, further comprising a vertical moving mechanism for vertically moving said air speed measuring device.

4. A measuring apparatus as defined in claim 1, wherein the floor surface is operable as a reference height for said air speed measuring device.

5. A measuring apparatus for a mower comprising:

a floor defining a downward recess with respect to a floor surface; and

an air pressure measuring device disposed in said recess for measuring a pressure of air blown by the mower, said air pressure measuring device having one or more air pressure detecting elements, and said air pressure detecting elements being height adjustable to measure air pressure at a plurality of heights including above, below, and substantially level with the floor surface.

6. A measuring apparatus as defined in claim 5, further comprising a measuring device moving mechanism for moving said air pressure measuring device along a direction in which said floor surface extends.

7. A measuring apparatus as defined in claim 5, further comprising a vertical moving mechanism for vertically moving said air pressure measuring device.

8. A measuring apparatus as defined in claim 5, wherein the floor surface is operable as a reference height for said air pressure measuring device.

9. A measuring apparatus for a mower comprising:

an air speed measuring device disposed in a recess formed in a floor surface for measuring a speed of air blown by the mower, said air speed measuring device having one or more air speed detecting elements; and

an air pressure measuring device disposed in the recess formed in the floor surface for measuring a pressure of air blown by the mower, said air pressure measuring device having one or more air pressure detecting elements;

wherein said air speed detecting elements and said air pressure detecting elements are height adjustable and measure air speed and air pressure, respectively, at a plurality of heights including above, below, and substantially level with the floor surface;

wherein said air speed measuring device and said air pressure measuring device are supported together by a frame structure.

10. A measuring apparatus as defined in claim 9, further comprising a measuring device moving mechanism for moving said frame structure along a direction in which said floor surface extends.

11. A measuring apparatus as defined in claim 9, further comprising a vertical moving mechanism for vertically moving said frame structure.

12. A measuring apparatus as defined in claim 9, wherein the floor surface is operable as a reference height for the air speed measuring device and for said air pressure measuring device.