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Title:
HITCH ANGLE SENSOR OF TOWED WORKING EQUIPMENT
Document Type and Number:
Japanese Patent JP2010221835
Kind Code:
A
Abstract:

To provide a hitch angle sensor capable of adjusting the timing of a steering return operation of towed working equipment according to the preference of a driver.

The hitch angle sensor has a sensor cam 20 rotatably housed in a switch box 18. The sensor cam 20 has a plurality of straight-advancing switch grooves having different groove widths along the circumferential surface of the cam body 22 having a bolt hole passing through it and pairs of right and left turning switch grooves corresponding to the straight-advancing switch grooves. A positioning plate 28 having a plurality of positioning holes corresponding to the straight-advancing switch grooves of the cam body 22 is fitted to the rotating shaft of the sensor cam 20 projecting from the switch box 18 so as not to co-rotate with the rotating shaft. A bolt hole is provided on a horizontal plate surface of an L-shaped draw bar link member 21 having an arm for contact with a draw bar, and the draw bar link member 21 is selectively joined to an arbitrary positioning hole of the positioning plate 28 by a selection bolt. The positioning plate 28 and the draw bar link member 21 are integrally joined by fastening a nut to the spindle bolt of the sensor cam 20 projecting above the draw bar link member 21.


Inventors:
AKUTSU MASAYOSHI
OGURA NAOKATSU
NAKAGAWA ISAMU
Application Number:
JP2009071044A
Publication Date:
October 07, 2010
Filing Date:
March 23, 2009
Export Citation:
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Assignee:
AKUTSU YOSHITO
AKUTSU MASAYOSHI
International Classes:
B62D13/00; A01B59/04
Domestic Patent References:
JP3502074B22004-03-02
JP3683234B22005-08-17
JPS62128979U1987-08-15
JPS59124430U1984-08-22
JP3502074B22004-03-02
JP3683234B22005-08-17
JPS62128979U1987-08-15
JPS59124430U1984-08-22
Attorney, Agent or Firm:
Naoyoshi Sato