Machine element or mechanism – Control lever and linkage systems – Elements
Patent
1997-12-01
1999-11-23
Hannon, Thomas R.
Machine element or mechanism
Control lever and linkage systems
Elements
74527, G05G 505
Patent
active
059880139
ABSTRACT:
In the operation of construction machines having multiple functions it has been a problem to provide a mounting arrangement for the levers that incorporates low lever effort operational detents without experiencing undue wear within the components. The present invention provides a mounting arrangement for a control lever that has a plurality of upraised ribs defined thereon in a preselected array. A plurality of grooves are positioned on an adjacent bearing member that are positioned to engage the upraised ribs in a first condition of the control lever. The control lever may be rotated out of engagement with the ribs to operate in a second condition while at the same time being engageable with a plurality of operational detents to provided feedback to an operator as to impending operational conditions.
REFERENCES:
patent: 1914506 (1933-06-01), House
patent: 2922669 (1960-01-01), Hansen
patent: 3534629 (1970-10-01), Schwerdhofer
patent: 4840083 (1989-06-01), Hagan et al.
patent: 5537892 (1996-07-01), Wiechman
Carr, Jr. Charles W.
Fryrear Max D.
Greving Derek D.
Kuhn Mary A.
Buck, II Byron G.
Caterpillar Inc.
Hannon Thomas R.
Kim Chong H.
Perry William C.
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