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US 4,281,721 AGranted
Bulldozer blade mounting assembly
AssigneeBeales Steel Products Ltd.
InventorJohn H. Beales
Life of this patent
Estimating the term…
Abstract
A mounting assembly for supporting a scraping tool (e.g. a bulldozer blade) forward of a vehicle (e.g. a bulldozer) and enabling independent angling and tilting of the tool is disclosed. The assembly includes a U-shaped mainframe, a swingframe, means for pivotally connecting the swingframe to the mainframe, means for pivotally connecting the tool to the swingframe, tilt actuator means interconnecting the mainframe and the scraping tool for rotating the scraping tool in relation to the swingframe about a tilting axis of rotation, and angle actuator means interconnecting the mainframe and the swingframe for rotating the swingframe and scraping tool in relation to the mainframe about an angling axis of rotation.
Claims17
A mounting assembly for supporting a scraping tool forward of a vehicle, said assembly comprising:
- (a) a generally U-shaped mainframe comprising a forward end extending transversely between two substantially parallel spaced side arm members;
- (b) a swingframe;
- (c) first pivotal connection means interconnecting said swingframe to the forward end of said mainframe in a location generally forward on said mainframe for enabling limited pivotal rotation on said swingframe in relation to an angling axis of rotation extending upwardly through said forward end substantially equidistant from said side arm members, said first pivotal connection means including a pivot pin extending through said forward end longitudinally along said angling axis;
- (d) second pivotal connection means interconnecting said scraping tool to said swingframe in a location forward of said swingframe for enabling limited pivotal rotation of said scraping tool in relation to a tilting axis of rotation extending in a plane substantially transverse to said angling axis of rotation, said second pivotal connection means including a pivot pin extending longitudinally along said tilting axis between said swingframe and said scraping tool, said tilting axis intersecting said scraping tool at a location centrally disposed widthwise of the tool;
- (e) tilt actuator means interconnecting said mainframe and said scraping tool for rotating said scraping tool in relation to said swingframe about said tilting axis, said tilt actuator means having a line of action between first and second ends of said tilt actuator means, said first end being pivotally supported at a location fixed in relation to said mainframe away from said tilting axis and substantially on said angling axis, said second end being pivotally supported at a location fixed in relation to said scraping tool disposed towards one side of said scraping tool;
- (f) angle actuator means interconnecting said mainframe and said swingframe for rotating said swingframe and said scraping tool in relation to said mainframe about said angling axis;
- and
- (g) support means for supporting said scraping tool in spaced relation with said swingframe while permitting limited rotation of said scraping tool in relation to said swingframe about said tilting axis.
5 more elements
A mounting assembly for supporting a bulldozer blade forward of a bulldozer, said assembly comprising:
- (a) a generally U-shaped mainframe comprising a forward end extending transversely between two substantially parallel spaced side arm members;
- (b) a swingframe;
- (c) first pivotal connection means interconnecting said swingframe to the forward end of said mainframe in a location generally forward on said mainframe for enabling limited pivotal rotation of said swingframe in relation to an angling axis of rotation extending upwardly through said forward end substantially equidistant from said side arm members, said first pivotal connection means including a pivot pin extending through said forward end longitudinally along said angling axis;
- (d) second pivotal connection means interconnecting said blade to said swingframe in a location forward of said swingframe for enabling limited pivotal rotation of said blade in relation to a tilting axis of rotation extending in a plane substantially transverse to said angling axis of rotation, said second pivotal connection means including a pivot pin extending longitudinally along said tilting axis between said swingframe and said blade, said tilting axis intersecting said blade at a location centrally disposed widthwise of the blade;
- (e) first hydraulic motor means interconnecting said mainframe and said blade for rotating said blade in relation to said swingframe about said tilting axis, said first hydraulic motor means having a line of action between first and second ends of said first hydraulic motor means, said first end being pivotally supported at a location fixed in relation to said mainframe away from said tilting axis and substantially on said angling axis, said second end being pivotally supported at a location fixed in relation to said blade disposed towards one side of said blade;
- (f) a pair of hydraulic motor means interconnecting said mainframe and respective sides of said swingframe for rotating said swingframe and said blade in relation to said mainframe about said angling axis;
- and,
- (g) support means for supporting said blade in spaced relation with said swingframe while permitting limited rotation of said blade in relation to said swingframe about said tilting axis.
5 more elements
Dependencies are inferred from the claim text.