US4079682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming tucks in a curtain cloth or the like
Assignee: C Kondo & Co Ltd
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Filing: 1977-04-22
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Granted: 1978-03-21
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Expires: 1997-04-22
Abstract
Abstract An apparatus for forming triple type of tucks in a curtain cloth is disclosed. The apparatus comprises on a base frame a first sewing machine with a first presser, a second sewing machine with a second presser, a movable base plate arranged for movement in the transverse direction of the cloth, and a stationary base plate arranged adjacent the second sewing machine. Further, a pair of upper and lower keep plates, a pair of upper and lower expansion spatulas, and a width setting spatula are mounted on the movable base plate for movement in the lengthwise direction of the cloth, and extend therefrom over a face plate. A double tucking plate with two sheet metals extends from the stationary base plate over the face plate. A portion of the cloth to be tucked is applied with its center line to an edge of the width setting spatula and the cloth is folded back with its upper and lower portions around the spatula and then passed outside the upper and lower expansion spatulas and between the upper and lower keep plates. While the upper and lower pressers with the cloth held there-between are moved transversely of the cloth, the cloth is stitched by the first sewing machine. Then, the width setting spatula and the upper and lower expansion spatulas are moved with the cloth held thereon lengthwise of the cloth toward the second sewing machine to insert the width setting spatula between the two sheet metals of the double tucking plate and arrange the upper expansion spatula and the lower expansion spatula over the upper sheet metal and under the lower sheet metal of the double tucking plate, respectively, so that triple type of tucks are formed in the cloth. These tucked portions are stitched by the second sewing machine.
Inventors
- 👤 Fukujiro Nishiwaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:01
CPC Classifications
D; D05; D05B; D05B35/00; D05B35/08; D05B25/00; D05D; D05D2207/00; D05D2207/02; D10; D10B; D10B2503/00; D10B2503/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
394 words
An apparatus for forming tucks in a curtain cloth or the like, said apparatus comprising a base frame; first and second sewing machines arranged on the base frame opposite to each other; a face plate for guiding and supporting the cloth to be tucked and provided between the first and second sewing machines, said first sewing machine and second sewing machine having a first presser and a second presser respectively; a movable base plate arranged on said base frame behind the face plate for forward and backward movement in the transverse direction of the cloth to be tucked on the face plate; upper and lower keep plates arranged one above the other under the first presser of the first sewing machine and adjacent the needle thereof and extending from the movable base plate over the face plate transversely of the cloth to be tucked; upper and lower expansion spatulas arranged adjacent said keep plates in parallel relation thereto and extending in vertically spaced relation from each other; a width setting spatula extending adjacent said expansion spatulas and in parallel relation thereto; said movable base plate having thereon a means for moving the upper keep plate up and down so as to be brought into and out of engagement with the lower keep plate, a means for reciprocating the upper and lower keep plates backward and forward relative to the face plate in the transverse direction of the cloth to be tucked, a means for moving vertically the upper and lower expansion spatulas toward or from away each other, a means for moving the width setting spatula relative to the upper and lower expansion spatulas in the lengthwise direction of the cloth to be tucked, and a means for transfering the upper and lower keep plates, the upper and lower expansion spatulas and the width setting spatula together in the lengthwise direction of the cloth to be tucked; a stationary base plate arranged on the base frame adjacent said second sewing machine; and a double tucking plate having two sheet metals in vertical spaced relation and arranged adjacent the width setting spatula in parallel relation thereto and extending under the second presser from said stationary base plate over the face plate, said stationary base plate having thereon a means for moving the double tucking plate in the lengthwise direction of the cloth to be tucked.
Claim 2
Independent Claim
394 words
An apparatus for forming tucks in a curtain cloth or the like, said apparatus comprising a base frame; first and second sewing machines arranged on the base frame opposite to each other; a face plate for guiding and supporting the cloth to be tucked and provided between the first and second sewing machines, said first sewing machine and second sewing machine having a first presser and a second presser respectively; a movable base plate arranged on said base frame behind the face plate for forward and backward movement in the transverse direction of the cloth to be tucked on the face plate; upper and lower keep plates arranged one above the other under the first presser of the first sewing machine and adjacent the needle thereof and extending from the movable base plate over the face plate transversely of the cloth to be tucked; upper and lower expansion spatulas arranged adjacent said keep plates in parallel relation thereto and extending in vertically spaced relation from each other; a width setting spatula extending adjacent said expansion spatulas and in parallel relation thereto; said movable base plate having thereon a means for moving the upper keep plate up and down so as to be brought into and out of engagement with the lower keep plate, a means for reciprocating the upper and lower keep plates backward and forward relative to the face plate in the transverse direction of the cloth to be tucked, a means for moving vertically the upper and lower expansion spatulas toward or from away each other, a means for moving the width setting spatula relative to the upper and lower expansion spatulas in the lengthwise direction of the cloth to be tucked, and a means for transfering the upper and lower keep plates, the upper and lower expansion spatulas and the width setting spatula together in the lengthwise direction of the cloth to be tucked; a stationary base plate arranged on the base frame adjacent said second sewing machine; and a double tucking plate having two sheet metals in vertical spaced relation and arranged adjacent the width setting spatula in parallel relation thereto and extending under the second presser from said stationary base plate over the face plate, said stationary base plate having thereon a means for moving the double tucking plate in the lengthwise direction of the cloth to be tucked.
Claim 3
Dependent Claim
131 words
An apparatus as set forth in claim 1, wherein said means for moving the upper keep plate up and down so as to be brought into and out of engagement with the lower keep plate is constituted by a tube supported on the movable base plate and having the lower presser secured thereto at the forward end, a shaft loosely fitted in said tube and having the upper keep plate secured thereto over the lower keep plate and projecting from both ends of the tube, said tube and shaft each having an arm firmly mounted thereon at the rear end, and a piston-cylinder assembly pivotally connected at the end of the cylinder to one of said arms and at the end of the piston rod to the other of said arms.
Claim 4
Dependent Claim
133 words
An apparatus as set forth in claim 1, wherein said means for moving vertically the upper and lower expansion spatulas toward or away from each other is constituted by a tube rotatably supported on the movable base plate and having at the forward end the lower expansion spatula secured thereto, a shaft rotatably fitted in the tube and having at the forward end the upper expansion spatula secured thereto and extending from both ends of the tube, and a stationary cam firmly mounted on the movable base plate, said tube and shaft each having at the rear end a lever with a roller, said levers being biased toward each other by means of spring such that said rollers are normally in abutting engagement with the upper and lower surfaces of said stationary cam.
Claim 5
Dependent Claim
110 words
An apparatus as set forth in claim 1, wherein said means for transferring the upper and lower keep plates, the upper and lower expansion spatulas and the width setting spatula together in the lengthwise direction of the cloth is constituted by a block for the upper and lower keep plates, a block for the upper and lower expansion spatulas and a block for the width setting spatula, said blocks being aligned movably on the movable base plate in the lengthwise direction of the cloth to be tucked and being connected in spaced relation from one another, and a driving means for transferring said block relative to said movable base plate.
Claim 6
Dependent Claim
54 words
An apparatus as set forth in claim 4, wherein said block for the width setting spatula is connected to the adjacent block so as to be movable relative to the same in the lengthwise direction of the cloth to be tucked and is connected to one of the other blocks through a driving means.
Claim 7
Dependent Claim
62 words
An apparatus as set forth in claim 1, wherein said means for moving the double tucking plate in the lengthwise direction of the cloth is constituted by a block for the double tucking plate supported and guided on the stationary base plate for movement in the lengthwise direction of the cloth to be tucked, and a driving means for moving said block.
Claim 8
Dependent Claim
21 words
An apparatus as set forth in claim 1, wherein a means for raising and lowering said movable base plate is provided.
Claim 9
Dependent Claim
80 words
An apparatus as set forth in claim 7, wherein the movable base frame is pivotally connected at one side to the base frame and is supported at the other side by one end of a swing lever pivotally supported at the middle thereof on the base frame, said swing lever being connected at the other end to a driving means for lifting and lowering the movable base plate, whereby said movable base plate can be pivotally moved up and down.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-20 | 1981-09-19 | 1982-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-20 | 1985-09-19 | 1986-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-20 | 1989-09-19 | 1990-03-21 | $7700.00 | Window Closed / Lapsed |