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Demolition shear and demolition shear piercing tip insert and nose configuration
Demolition shear and demolition shear piercing tip insert and nose configuration
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机译：拆除剪和拆除剪穿刺尖端和鼻状结构
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摘要
A piercing tip for a demolition shear disclosed herein generally addresses the need to resist nose wear and resists retract forces exerted on the piercing tip insert in jamming situations and in the event of snagging of the piercing tip insert. The piercing tip comprises first and second piercing tip halves, each half including: an outer sidewall having a planar outer wear surface and a planar inner bearing surface; a curved front wall having an outer curved wear surface defining a front wall arc with a front wall arc radius, said outer curved wear surface extending laterally inward and substantially perpendicular to said planar inner bearing surface of said outer sidewall; a bottom leg connected to said curved front wall and having a bottom wear surface extending laterally inward from said planar inner bearing surface of said outer sidewall and substantially perpendicular to said planar outer wear surface of said outer sidewall; wherein an intersection of said substantially planar outer wear surface and said bottom wear surface defines a shearing edge and wherein an intersection of said outer curved wear surface and said bottom wear surface defines a front piercing edge.
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