Samvinna
LIST
FEGURÐ OG VELLÍÐAN
HANDVERK
MENNING OG SAGA
SKEMMTUN
UMHVERFI
MATUR OG DRYKKUR
ÖFUGVERKFRÆÐI
VÍSINDI
ÍÞRÓTTIR
TÆKNI
KLÆÐANLEG TÆKNI
Jigsaw: Motor-Rocked C-Frame on a Leaf Spring (Heese, US 2,692,622, 1954)
A small electric jig saw for curved cuts. A long U-shaped frame holds a fine blade stretched between its two arms. The frame's back end hangs on an L-shaped leaf spring, and an eccentric on a motor shaft rocks its lower arm up and down, so the blade saws through a slot in the table while the spring flexes. A wing nut tensions the blade; sawdust falls into a box below.
Result: a compact motor-driven jig (scroll) saw.
Source: G. O. Heese, US 2,692,622 (1954). Unknown: materials, sizes, the motor and the stroke. Picture: the patent drawing.
Miðlungs
Unknown
Leiðbeiningar
1
1
Build the base and table
Build the base and table
Make a long flat base, wider at the front. Fasten a long upright support along it, its back end a separate upright strip. Across the wide front stand two walls with matching upright guide slots, carrying a level table that overhangs to the front with a slot for the blade. Under the overhang set a removable open box for sawdust. Not given: materials, sizes.
Efni fyrir þetta skref:
Óþekktur efniviður1 base, support, walls, table, box
Sexkantboltaúrval1 fastenersNauðsynleg verkfæri:
Járnsög
Handbor
Óþekkt mál2
2
Make the C-frame and spring hinge
Make the C-frame and spring hinge
Make a U-shaped blade frame: an upper arm, a lower arm, and a back piece made in one with the lower arm and bolted to the upper. Fix the upright part of an L-shaped leaf spring to the support's back strip; its flat part goes into a slot in the frame's back piece and is held by the same bolt. The frame can now swing up and down on the spring, its lower arm running in the walls' guide slots under the table.
Efni fyrir þetta skref:
Óþekktur málmur1 frame arms and back
Blaðfjöður1 stykkiSexkantboltaúrval1 stykki
Sexkantró1 stykkiNauðsynleg verkfæri:
Skiptilykill3
3
Fit the motor and eccentric
Fit the motor and eccentric
Fix an electric motor on the wide front of the base with its shaft running across under the frame's lower arm. Put two bolts down through the lower arm, one each side of the shaft; on them hang a lower strip resting on nuts and an upper strip under the arm, with a coil spring on each bolt pushing the strips apart. Fix an eccentric on the motor shaft between the two strips: as it turns it rocks the frame. Not given: the motor, the throw.
Efni fyrir þetta skref:
Rafmótor1 stykki
Miðskökk fóðring1 eccentricÓþekktur málmur1 two stripsSexkantboltaúrval1 two boltsSexkantró2 stykki
Þrýstigormasett1 two coil springsNauðsynleg verkfæri:
Skiptilykill4
4
Fit the blade clamps and use it
Fit the blade clamps and use it
On the lower arm fix a strip with a forked end that hooks under the blade's lower pin. On the upper arm fit a bracket with a cross pin; an arm rocks on it, its forked front end over the blade's upper pin, its back end pulled down by a bolt with a wing nut. Add forked guide strips above and below the table. To fit a blade, loosen the wing nut, hook both pins and tighten the nut to stretch the blade straight. Switch on and feed the work across the table. Ours: a pinned coping-saw blade.
Efni fyrir þetta skref:
Óþekktur málmur1 clamp strips, bracket, arm, guides
Vængjahneta1 stykkiSexkantboltaúrval1 stykki
Laufsagarblað1 pinned bladeNauðsynleg verkfæri:
SkiptilykillEfni
10- 1 base, support, walls, table, boxStaðgengill
- 1 two boltsStaðgengill
- 1 clamp strips, bracket, arm, guidesStaðgengill
- 1 stykkiStaðgengill
- 3 stykkiStaðgengill
- 1 stykkiStaðgengill
- 1 eccentricStaðgengill
- 1 two coil springsStaðgengill
- 1 stykkiStaðgengill
- 1 pinned bladeStaðgengill
Efni úr tengdum teikningum
Þessi teikning býr til
CC0 opinbert ríki
Þessi teikning er gefin út undir CC0. Þér er frjálst að afrita, breyta, dreifa og nota þetta verk í hvaða tilgangi sem er, án þess að biðja um leyfi.
Studdu smiðinn með því að kaupa vörur í gegnum teikningu hans þar sem hann fær þóknun smiða sem seljendur ákvarða, eða búðu til nýja endurskoðun á þessari teikningu og tengdu hana sem tengingu í þinni eigin teikningu til að deila tekjum.