Oscillated head with bearing support and quick demountability
First Claim
1. For use 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 frame having side members the improvement comprising(a) a connecting element having a first tubular part and a second tubular part, said parts having spaced, parallel axes, said second tubular part pivotally connected to the head,(b) a drive shaft extending within said first tubular part, said shaft operatively connectible to the drive to be rotated thereby, and(c) support bearings removably attached to the frame side members, the drive shaft having end portions rotatably supported by the bearings,(d) the frame side members having apertures into which the drive shaft extends, said apertures opening peripherally to pass and thereby free the drive shaft from the frame when the bearings are detached from the frame side members, whereby the drive shaft and said first tubular part may be demounted from the frame,(e) said head consisting of lightweight metal and having two flanges interconnecting by a web, the flanges being locally thickened to substantial extent to define two lugs,(f) and bearings carried by said lugs to form bearing openings for a pivot shaft removably connected to the frame, said bearings being lubricated adjacent the shaft.
2 Assignments
0 Petitions
Accused Products
Abstract
Apparatus usable in power-operated floor stripping apparatus that includes a frame, a drive carried on the frame, wheels supported the frame, a handle to guide the frame, and a cutting blade carried by a head which is pivotally mounted to the frame, the frame having side members, 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, and
(c) support bearings removably attached to the frame side members, the drive shaft having end portions rotatably supported by the bearings,
(d) the frame side members having apertures into which the drive shaft extends, said apertures opening peripherally to pass and thereby free the drive shaft from the frame, when the bearings are detached from the frame said members whereby the drive shaft and said first tubular part may be demounted from the frame.
13 Citations
19 Claims
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1. For use 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 frame having side members the improvement comprising
(a) a connecting element having a first tubular part and a second tubular part, said parts having spaced, parallel axes, said second tubular part pivotally connected to the head, (b) a drive shaft extending within said first tubular part, said shaft operatively connectible to the drive to be rotated thereby, and (c) support bearings removably attached to the frame side members, the drive shaft having end portions rotatably supported by the bearings, (d) the frame side members having apertures into which the drive shaft extends, said apertures opening peripherally to pass and thereby free the drive shaft from the frame when the bearings are detached from the frame side members, whereby the drive shaft and said first tubular part may be demounted from the frame, (e) said head consisting of lightweight metal and having two flanges interconnecting by a web, the flanges being locally thickened to substantial extent to define two lugs, (f) and bearings carried by said lugs to form bearing openings for a pivot shaft removably connected to the frame, said bearings being lubricated adjacent the shaft.
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8. For use 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 frame having side members the improvement comprising
(a) a connecting element having a first tubular part and a second tubular part, said parts having spaced, parallel axes, said second tubular part pivotally connected to the head, (b) a drive shaft extending within said first tubular part, said shaft operatively connectible to the drive to be rotated thereby, and (c) support bearings removably attached to the frame side members, the drive shaft having end portions rotatably supported by the bearings, (d) the frame side members having apertures into which the drive shaft extends, said apertures opening peripherally to pass and thereby free the drive shaft from the frame when the bearings are detached from the frame side members, whereby the drive shaft and said first tubular part may be demounted from the frame, (e) said head consisting of lightweight metal and having two flanges interconnecting by a web, the flanges being locally thickened to substantial extent fo define two lugs, (f) and bearing bushings received in and carried by said lugs to form bearing openings for a pivot shaft removably connected to the frame, said bushing being self-lubricated adjacent the shaft.
Specification