| 摘要 |
Apparatus usable in power-operated floor stripping apparatus that includes a frame, a drive carried on the frame, wheels supporting the frame, a handle to guide the frame, and a cutting blade carried by a head which is pivotally mounted to the frame, the apparatus comprising (a) a connecting element having a first tubular part and a second tubular part, those parts having spaced, parallel axes, the second tubular part pivotally connected to the head, (b) a drive shaft extending within the first tubular part, the shaft operatively connectible to the drive to be rotated thereby, (c) said head consisting of lightweight metal selected from the group consisting of aluminum, aluminum alloys, magnesium and magnesium alloys, (d) the head having two elongated flanges interconnected by a web, the flanges being locally thickened near upper ends of the elongated flanges, to define two lugs forming bearing openings for a pivot shaft connected to the frame, (e) the bearing openings defining a pivot axis parallel to said drive shaft. Also, easily tightenable means clamps a bottom plate that in turn clamp the blade to the bottom of the head.
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