Title:
HACKSAW FOR CONDUIT MADE OF METAL
Document Type and Number:
Japanese Patent JPS63300818
Kind Code:
A
Abstract:
A tool for cutting a workpiece (23) comprising a tool body (10); means on the tool body for securing the workpiece; a saw blade (20) movably supported on the body for cutting the secured workpiece, the saw blade having a plurality of cutting teeth (49) movable in a sawing direction and a feeding direction in a cutting plane extending through the workpiece (23); and a bushing (50) on the tool body rotatable about an axis normal to the cutting plane, the bushing being engagable on its periphery by the saw blade teeth (49) and rotatable thereby, after cutting of the workpiece, to restrict movement of the saw blade (20) in the feeding direction while permitting movement of the saw blade in the sawing direction. In the preferred embodiment the bushing (50) includes teeth (51) on the periphery which are of comparable size and spacing to the teeth (49) of the saw blade to clean the latter. The bushing may be made of a bronze porous powder metal which is impregnated with a lubricant for lubricating the saw blade teeth.
Inventors:
RUSHIEN SHII DEYUUKURETSUTO
Application Number:
JP4879488A
Publication Date:
December 08, 1988
Filing Date:
March 03, 1988
Export Citation:
Assignee:
RUSHIEN SHII DEYUUKURETSUTO
International Classes:
B23D49/12; B23D51/02; B23D59/04; B23Q11/02; (IPC1-7): B23D49/12
Domestic Patent References:
| JP59501542Y | ||||
| JPS378388Y1 | 1962-04-25 | |||
| JPS61983U | 1986-01-07 |
Attorney, Agent or Firm:
Sumiko Shimosaka
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