Patent US4065043A successfully refreshed from Google Patents.
US4065043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary speed minute regulating device for output shaft in puller apparatus
Assignee: Individual
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Filing: 1976-04-23
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Granted: 1977-12-27
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Expires: 1996-04-23
Abstract
Abstract For use with a sewing machine, a cloth pulling apparatus has a rotatable input shaft for coupling to a rotary drive force, and a pair of output shafts provided with cloth-pulling rotors mounted so as to feed cloth through a nip between the rotors. A variable transmission means converts the rotary movement of the input shaft to intermittent unidirectional opposite rotation of the cloth-pulling rotors. The transmission means comprises an eccentric rod pivotally mounted at one of its ends on the input shaft such that rotation of the input shaft effects oscillation of the other end of the rod. A one-way drive member is coupled to the output shafts such that oscillatory movement of the one-way drive member effects intermittent unidirectonal opposite rotation of the output shafts. A linkage effects oscillatory movement of the one-way drive member in accordance with oscillation of the oscillatory end of the eccentric rod, and this linkage is provided with adjustable means coupled to the eccentric rod for determining and varying the osicllatory path of the oscillatory end of the rod. Manually actuatable means are accessible from the exterior of the casing of the apparatus for adjusting the adjustable means so as to adjustably set the oscillatory path of the oscillatory end of the eccentric rod, and hence the oscillatory movement of the one-way drive member. The apparatus thus provides for precise control and variation of the movement of the cloth-pulling rotors from the exterior of the casing in a very simple and convenient manner.
Inventors
- 👤 Katsuji Ohashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:41
CPC Classifications
D; D05; D05B; D05B27/00; D05B27/10; D05B27/14; B; B65; B65H; B65H20/00; B65H20/02; B65H2404/00; B65H2404/10; B65H2404/14; B65H2404/147; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1508; Y10T74/151
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
318 words
For use with a sewing machine, a cloth pulling apparatus comprising a casing, a rotatable input shaft carried by said casing and adapted for coupling to a rotary drive source, a pair of output shafts carried by said casing and provided with cloth-pulling rotors mounted so as to feed cloth through a nip between rotors when rotated in opposite directions, and variable transmission means within the casing for converting rotary movement of said input shaft to intermittent unidirectional rotation of at least one of said output shafts and cloth-pulling rotors, said transmission means comprising a rod carried eccentrically and pivotally at one of its ends by said input shaft such that rotation of said input shaft effects oscillation of the other end of said rod, a one-way drive member coupled to said output shafts such that oscillatory movement of said one-way drive member effects intermittent unidirectional but respectively opposite rotation of said output shafts, means for effecting oscillatory movement of said one-way drive member in accordance with oscillation of said other end of said rod, adjustable means coupled to said eccentric rod for determining and varying the oscillatory path of said other end of said rod, and manually actuatable means accessible on the exterior of said casing for adjusting said adjustable means so as to adjustably set the oscillating path of said other end of said rod and hence the oscillatory movement of said one-way drive member, said adjustable means comprising a first link mounted for pivotal movement about an adjustably movable center and coupled to said rod such that pivotal movement of said first link about its center determines the oscillatory path followed by said other end of said rod, and said manually actuatable means comprising an adjustment member extending from the exterior of said casing and coupled with said adjustably movable center for determining and varying the location of said adjustably movable center within said casing.
Claim 2
Dependent Claim
318 words
For use with a sewing machine, a cloth pulling apparatus comprising a casing, a rotatable input shaft carried by said casing and adapted for coupling to a rotary drive source, a pair of output shafts carried by said casing and provided with cloth-pulling rotors mounted so as to feed cloth through a nip between rotors when rotated in opposite directions, and variable transmission means within the casing for converting rotary movement of said input shaft to intermittent unidirectional rotation of at least one of said output shafts and cloth-pulling rotors, said transmission means comprising a rod carried eccentrically and pivotally at one of its ends by said input shaft such that rotation of said input shaft effects oscillation of the other end of said rod, a one-way drive member coupled to said output shafts such that oscillatory movement of said one-way drive member effects intermittent unidirectional but respectively opposite rotation of said output shafts, means for effecting oscillatory movement of said one-way drive member in accordance with oscillation of said other end of said rod, adjustable means coupled to said eccentric rod for determining and varying the oscillatory path of said other end of said rod, and manually actuatable means accessible on the exterior of said casing for adjusting said adjustable means so as to adjustably set the oscillating path of said other end of said rod and hence the oscillatory movement of said one-way drive member, said adjustable means comprising a first link mounted for pivotal movement about an adjustably movable center and coupled to said rod such that pivotal movement of said first link about its center determines the oscillatory path followed by said other end of said rod, and said manually actuatable means comprising an adjustment member extending from the exterior of said casing and coupled with said adjustably movable center for determining and varying the location of said adjustably movable center within said casing.
Claim 3
Dependent Claim
89 words
Apparatus as claimed in claim 1 further comprising a rotatable adjustment gear carried by said housing, said adjustably movable pivot center being coupled to said adjustment gear so as to move in an arcuate path upon rotation of said gear such that the location of said center is determined by the angular setting of said adjustment gear, said adjustment member being a rotatable member coupled to said adjustment gear for variably setting the angular setting of said adjustment gear and hence the location of said adjustably movable pivot center.
Claim 4
Dependent Claim
94 words
Apparatus as claimed in claim 2 wherein said first link is pivotally coupled at one end to said adjustably movable center and at its other end to said other end of said rod, and said means for effecting oscillatory movement of said one-way drive member comprises a second link pivotally coupled at one end to said other end of said rod and at its other end to said one-way drive member so as to oscillate said drive member through an arc dependent upon the oscillatory path followed by said other end of said rod.
Claim 5
Dependent Claim
46 words
Apparatus as claimed in claim 3 wherein said adjustment member includes a worm threadedly engaged with said adjustment gear, said adjustment gear comprising a worm gear whose center or rotation corresponds to the rotational center of the arcuate path travelled by said adjustably movable pivot center.
Claim 6
Dependent Claim
29 words
Apparatus as claimed in claim 4 wherein said adjustably movable pivot center is coupled to said worm gear through a link so as to rotate with said worm gear.
Claim 7
Dependent Claim
246 words
For use with a sewing machine, a cloth pulling apparatus comprising a casing, a rotatable input shaft carried by said casing and adapted for coupling to a rotary drive source, a pair of output shafts carried by said casing and provided with cloth-pulling rotors mounted so as to feed cloth through a nip between the rotors when rotated in opposite directions, and variable transmission means within the casing for converting rotary movement of said input shaft to intermittent unindirectional but respectively opposite rotation of said output shafts and cloth-pulling rotors, said transmission means comprising oscillatory means oscillatably driven in response to rotation of said input shaft, unidirectional drive means responsive to oscillation of said oscillatory means for unidirectionally rotating said output shafts intermittently in respectively opposite directions over arcs dependent upon the oscillatory path traversed by said oscillatory means, adjustable means for determining and varying the oscillatory path of said oscillatory means, and manually actuatable means accessible on the exterior of said casing for adjusting said adjustable means so as to adjustably set the oscillatory path of said oscillatory means and hence the intermittent unidirectional rotation of said output shafts, wherein said adjustable means comprises a link pivotally coupled at one end to said oscillatory means and pivotally coupled at its other end to a pivot center such that the oscillatory path of said oscillatory means is an arcuate path about said pivot center, and means for selectively moving said pivot center along an arcuate path.
Claim 8
Dependent Claim
246 words
For use with a sewing machine, a cloth pulling apparatus comprising a casing, a rotatable input shaft carried by said casing and adapted for coupling to a rotary drive source, a pair of output shafts carried by said casing and provided with cloth-pulling rotors mounted so as to feed cloth through a nip between the rotors when rotated in opposite directions, and variable transmission means within the casing for converting rotary movement of said input shaft to intermittent unindirectional but respectively opposite rotation of said output shafts and cloth-pulling rotors, said transmission means comprising oscillatory means oscillatably driven in response to rotation of said input shaft, unidirectional drive means responsive to oscillation of said oscillatory means for unidirectionally rotating said output shafts intermittently in respectively opposite directions over arcs dependent upon the oscillatory path traversed by said oscillatory means, adjustable means for determining and varying the oscillatory path of said oscillatory means, and manually actuatable means accessible on the exterior of said casing for adjusting said adjustable means so as to adjustably set the oscillatory path of said oscillatory means and hence the intermittent unidirectional rotation of said output shafts, wherein said adjustable means comprises a link pivotally coupled at one end to said oscillatory means and pivotally coupled at its other end to a pivot center such that the oscillatory path of said oscillatory means is an arcuate path about said pivot center, and means for selectively moving said pivot center along an arcuate path.
Claim 9
Dependent Claim
59 words
Apparatus as claimed in claim 6 wherein said adjustable means further comprises a worm and worm gear, said worm being coupled to said manually actuatable means, and means coupling said pivot center to said worm gear for movement with said worm gear about the rotational center of said worm gear in response to manual actuation of said actuatable means.
References Cited (Backward Citations)
US1496816A
Cited
US2713837A
Cited
US2687704A
Cited
US3076368A
Cited
US3357384A
Cited
US3468272A
Cited
US3450079A
Cited
US3611817A
Cited
US3985088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-26 | 1981-06-27 | 1981-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-26 | 1985-06-27 | 1985-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-26 | 1989-06-27 | 1989-12-27 | $7700.00 | Window Closed / Lapsed |