The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 11, 2001

Filed:

Jul. 07, 2000
Applicant:
Inventors:

Jitsumi Hanafusa, Wako, JP;

Tomoki Ito, Wako, JP;

Seishu Sakai, Wako, JP;

Takahiro Yamamoto, Wako, JP;

Masayuki Yamamoto, Wako, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E01H 5/09 ;
U.S. Cl.
CPC ...
E01H 5/09 ;
Abstract

In a snow-removing machine, an expandable and contractible regulating mechanism is coupled between a steering handlebar of a machine body including a snow-removing section and a drive section capable of being turned relative to the machine body about a wheel driving shaft, and is capable of regulating the level of the snow-removing section relative to the drive section. The expandable and contractible regulating mechanism is comprised of a cylinder connected to the machine body, a piston which divides the inside of the cylinder into a first chamber and a second chamber, a piston rod coupled to the piston and connected to the drive section, a communication passage permitting communication between the first and second chambers, and an on-off valve for opening and closing the communication passage. A high-pressure gas is filled in the first and second chambers, so that the expansion and compression of the high-pressure gas is permitted upon closing of the on-off valve. Thus, during a snow-removing operation of the snow-removing machine, vibration applied to the drive section can be absorbed utilizing the expandable and contractible regulating mechanism for regulating the level of the snow-removing section.


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