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ÌṢERÉ
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OÚNJẸ ÀTI OHUN MÍMU
REVERSE ENGINEERING
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ÌMỌ̀-Ẹ̀RỌ
ÀWỌN OHUN WÍWỌ̀
Swivel-Blade Deburring Tool: Roth, 1952
Cutting, punching, sawing and grinding leave burrs on the edges of metal, plastic and pressed wood. A knife or file scrapes them off unevenly, and only in skilled hands. Otto W. Roth of Los Angeles patented a swivel-blade cutting tool in 1952, US 2,598,443. A short hooked blade on a shaft turns freely in a sleeve in the handle, bent at less than a right angle. A rounded head at its tip rides on the face of the work and sets the blade's angle, so as the tool is drawn along an edge or round a punched hole the blade follows it and shaves the burr off evenly.
Àárín
Workshop process
Ìlànà
1
1
Handle and sleeve
Handle and sleeve
Bore the handle axially and press in a sleeve or bushing; a pressed-in part of the sleeve bears on the shaft lightly so it does not slip out, and its outer end turns over against the handle's end.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ọwọ́ irinṣẹ́ pẹ̀lú ihò ní àárín1 ẹyọ
Àpá bearing yíyí1 ẹyọÀwọn irinṣẹ́ tí a nílò:
Ẹ̀rọ Ìyí Irin
Ìdìmú Tábìlì2
2
Blade
Blade
Form the blade on the shaft's end at an angle of less than 90°, with a knife edge between two flat sides and a rounded head at the tip that overhangs the edge.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Abẹ ìkọ́ ìyọ burr lórí ọ̀pá1 ẹyọÀwọn irinṣẹ́ tí a nílò:
Ẹ̀rọ ìfá orí tábìlì3
3
Swivel fit
Swivel fit
Put a collar on the shaft to bear against the sleeve's end, and insert the shaft so the blade rotates freely. (In the alternative form, a thrust bearing at the base of the bore and a flared bearing sleeve give a smoother swivel, and a cap closes the handle.)
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Òrùka ìtì1 ẹyọÀwọn ohun-èlò
4- Àyè
- 1 ẹyọÀyè
- Àyè
- 1 ẹyọÀyè
Àwọn irinṣẹ́ tó nílò
3- Àyè
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