CN100398718C - Rotary shutter cover - Google Patents
Rotary shutter cover Download PDFInfo
- Publication number
- CN100398718C CN100398718C CNB031306942A CN03130694A CN100398718C CN 100398718 C CN100398718 C CN 100398718C CN B031306942 A CNB031306942 A CN B031306942A CN 03130694 A CN03130694 A CN 03130694A CN 100398718 C CN100398718 C CN 100398718C
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- CN
- China
- Prior art keywords
- rotating shuttle
- board portion
- lid
- guide
- shuttle lid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The invention relates to a rotary shutter cover. In the sewing machine which has a bed part 2 comprising a body bed part 6 and a cylinder bed part 8, an oil pan 10 disposed below the body bed part 6 and a hook cover 12 covering the lower part of the cylinder bed 8 while enabling the hook cover 12 to open or close the bed part 2, a roughly arcuate guide groove 104 is provided in one of the bed part 2 and the hook cover 12 and a guide pin 106 to be fitted into the guide groove 104 is provided on the other. The purpose of the invention is to enable the setting of a rotation fulcrum freely without the use of a rotation fulcrum member such as a hinge, making itself as a fulcrum in the opening or closing of a hook cover.
Description
Technical field
The present invention relates to a kind of rotating shuttle lid that covers cylinder board subordinate side that makes with respect to board portion sewing-machine rotating shuttle lid arrangement to be opened/closed, this cylinder abutment portion is stretched out from Sewing machines board elongate ground and is disposed rotating shuttle.
Background technology
On the cylindrical machine bench-type Sewing machines of making peripherally that will cover cylinder board portion as the tubular sewn object the cuff of clothes, be configured in cylinder board portion with the rotating shuttle of eedle co-operating, but in order to rotate this rotating shuttle, so have structure to rotating shuttle drive division supplying lubricating oil with high speed.Owing to the lubricating oil of supplying with to rotating shuttle disperses along with the rotation of rotating shuttle and falls, so the rotating shuttle lid must be arranged to prevent that oil from adhering on the sewn object.
Rotating shuttle lid in the past is as Fig. 8 and structure shown in Figure 9.The board portion 201 of this Sewing machines, by body board portion 202, and the cylinder board portion 203 more elongated than these body board portion 202 shapes constitute.Below body board portion 202, disposed the food tray 205 that stores lubricating oil 204.Below cylinder board portion 203, disposed the rotating shuttle lid 206 of the below that covers this cylinder board portion 203.For the lubricating oil that will fall from the not shown rotating shuttles in the cylinder board portion 203 to rotating shuttle lid 206 turns back to food tray 205, board portion 201 side ends of rotating shuttle lid 206 are configured in the position of the more close body board of next door 205a portion 202 sides (right side of figure) that are positioned at food tray 205.
In the rotating shuttle portion in cylinder board portion 203, holding not shown bottom line bobbin case, the operator pulls down this bottom line bobbin case, more renews the bottom line bobbin case when the supply bottom line.Therefore, rotating shuttle lid 206 can be installed in the board portion 201 with opening and closing.
Above-mentioned rotating shuttle lid 206, itself is that pivot can be supported in the board portion 201 rotationally with the rotating fulcrum parts 207 of hinge or rotating shaft etc.Rotating fulcrum parts 207 when being to use hinge, have parts that are installed in the board portion 201 and the parts that are installed on the rotating shuttle lid 206.In addition, when using rotating shaft, this rotating shaft is fixed in the board portion 201, and must supports rotating shuttle lid 206 rotationally by this rotating shaft.Therefore, the pivot of rotating fulcrum parts 207,206 intersection are covered with the critical part or the cylinder board portion as shown in Figure 9 203 of rotating shuttle lid 206 with rotating shuttle in the body board portion 202 that is positioned at as shown in Figure 8.No matter under any situation, this pivot all is the position that is positioned at than the more close body board of the next door 205a portion 202 of food tray 205.And, be usually located at the top of the upper end of this next door 205a.
When using such switching mechanism, as as indicated in scheming, when in order to open rotating shuttle lid 206 when counter clockwise direction rotated, the position of the rotating shuttle lid 206 of interfering with the next door 205a of food tray 205 is that rotating shuttle covers near the lower end 210 of 206 close body board portion 202 sides at first.Covered 206 o'clock opening rotating shuttle, in case must be opened to the position 206a shown in the double dot dash line among the figure, then for rotating shuttle lid 206 is not interfered with the next door 205a of food tray 205, the upper end of next door 205a just must be arranged in the lower position of figure double dot dash line.Therefore, the gap 208 between the next door 205a upper end of rotating shuttle lid 206 and food tray 205 becomes big.And, reduced the next door 205a of food tray 205.
Lubricating oil 204 in the food tray 205 has been full of vaporific oil when Sewing machines turns round.Therefore, above-mentioned gap one becomes big, then easily from this gap 208 to the Sewing machines external leakage.In addition, in case reduce the next door 205a of food tray 205, then the liquid level of lubricating oil 204 is just near next door 205a upper end, so oil just holds easily to the Sewing machines external leakage.
In addition, the rotating fulcrum parts during as the use hinge damage easily, and the price height.
And, as shown in Figure 9, be positioned at rotating shuttle lid 206 o'clock at pivot, when opening rotating shuttle lid 206 and when counter clockwise direction is rotated, because the part of rotating shuttle lid 206 is moved upward, and the size that can not ignore this amount of movement, so mechanism element or cylinder board portion 203 in easy and the cylinder board portion 203 itself interfere.
In addition, the rotating shuttle of stating shape in the use covered 206 o'clock, residued near the oil this lower end 210, covered and can cover 206 edge part along rotating shuttle at 206 o'clock and move to bottom surface 212 opening rotating shuttle.In case the bottom surface 212 of rotating shuttle lid 206 has been stained with oil, will pollute sewn object when making.
The object of the present invention is to provide a kind of Sewing machines that when the rotary motion trace of selecting the rotating shuttle lid and center of rotation, has the high-freedom degree structure.
The present invention also aims to, can make rotating shuttle lid smooth opening, and further utilize this guide rail structure to make the rotating shuttle lid can keep being installed on board portion state with simple guide rail structure.
Other purposes of the present invention are to provide a kind of rotating fulcrum parts that do not use the high hinge of easy damage and valency etc. just can open and close the Sewing machines of rotating shuttle lid.
Other purposes of the present invention also be to provide a kind of make and the wall of food tray between gap turn narrow, and can prevent that oil is from the Sewing machines of this gap to the Sewing machines external leakage.
Summary of the invention
For achieving the above object, 1 described sewing-machine rotating shuttle lid arrangement according to the present invention, with the rotating shuttle 12 of cylinder board portion 8 belows that cover sewing machine body board portion 6 and stretch out with elongate ground from this body board portion, can open and close with respect to above-mentioned body board portion or cylinder board portion, it is characterized in that:
Either party of above-mentioned body board portion or cylinder board portion and rotating shuttle lid, being provided with the point that leaves from this rotating shuttle lid and be positioned at food tray 10 foreign sides that are installed in body board portion downwards is circular-arc guide-track groove 104 of roughly being of center, be provided with the guide pins 106 chimeric the opposing party with this guide-track groove, make above-mentioned rotating shuttle cover circular-arc for along above-mentioned guide-track groove of motion track when opening and closing, above-mentioned rotating shuttle lid 12, on the lower end 110 of above-mentioned food tray 10 sides, have the bend that roughly is circular-arc, and the 12C of center of arc of the center of arc of this bend and above-mentioned guide-track groove is unanimous on the whole.
The present invention's 2 is 1 described sewing-machine rotating shuttle lid arrangements according to the present invention, it is characterized in that: respectively establish above-mentioned guide-track groove and guide pins a pair of about the rotating shuttle lid.
The present invention's 3 is 1 or 2 described sewing-machine rotating shuttle lid arrangements according to the present invention, it is characterized in that: be provided with a plurality of can chimeric with guide-track groove respectively above-mentioned guide pins.
The present invention's 4 is 2 or 3 described sewing-machine rotating shuttle lid arrangements according to the present invention, it is characterized in that: have the elastomeric element 120 that above-mentioned rotating shuttle lid is applied draw power to body board side.
The present invention's 5, be 1 described sewing-machine rotating shuttle lid arrangement, it is characterized in that: be provided with when above-mentioned rotating shuttle lid 12 is turned to the angle that can only handle the bobbin case 38 above-mentioned rotating shuttle 28 at least, limit this rotating shuttle and cover 12 position-limit mechanisms that move 112 according to invention the present invention.
Description of drawings
Fig. 1 is the stereogram of major part of the embodiment of Sewing machines of the present invention.
Fig. 2 is the cutaway view of the major part of present embodiment Sewing machines.
Fig. 3 is the figure of the position-limit mechanism of expression present embodiment Sewing machines.
Fig. 4 is the stereoscopic figure of present embodiment Sewing machines.
Fig. 5 is the stereogram of the basic system of expression present embodiment Sewing machines.
Fig. 6 is the upward view of the major part of present embodiment Sewing machines.
Fig. 7 is the side view of the major part of present embodiment Sewing machines.
Fig. 8 is the cutaway view of the major part of Sewing machines in the past.
Fig. 9 is the cutaway view of the local major part of other Sewing machiness in the past.
Among the figure: 2-board portion, 6-body board portion, 8-cylinder board portion, 10-food tray, 12-rotating shuttle lid, 12C-center of arc, 28-rotating shuttle, 38-bobbin case, 104-guide-track groove, 106-guide pins, 110-lower end, 112-link stopper.
The specific embodiment
Following embodiment with reference to description of drawings Sewing machines of the present invention.
The schematic configuration of Sewing machines of the present invention at first, is described with reference to Fig. 4 and Fig. 5.This Sewing machines 1 is to make shank 3 by not shown needle vibrating mechanism, the sawtooth chain stitch sewing machine that can move along the direction vertical with the throughput direction of sewn object, has board portion 2, from the board portion 2 upright chain-drive sections 4 that are provided with.Board portion 2 compares the cylinder board portion 8 that is elongate by body board portion 6, with body board portion 6 and constitutes.The food tray 10 that stores lubricating oil is configured in the below of body board portion 6, and rotating shuttle lid 12 is configured in the below of cylinder board portion 8.This rotating shuttle lid 12 can be opened and closed the ground support with respect to body board portion 6 or cylinder board portion 8.
The rotation of going up axle 14 by not shown drive source, rotation drive passes to lower shaft 18 by synchronous belt 16.The rotation of lower shaft 18 passes to rotating shuttle driving shaft 22 by geared system 20 and after being changed rotating speed.The rotation of rotating shuttle driving shaft 22 passes to rotary shuttle shaft 26 by geared system 24.Lower shaft 18 be arranged in parallel with rotating shuttle driving shaft 22, but rotating shuttle driving shaft 22 disposes in vertical direction with rotary shuttle shaft 26.Therefore, geared system 20 is made of spur gear, and geared system 24 is made of bevel gear.Front end at rotary shuttle shaft 26 is equipped with rotating shuttle 28.
In above-mentioned each mechanism element, geared system 24, rotary shuttle shaft 26, rotating shuttle 28 are configured in the cylinder board portion 8, and lower shaft 18, geared system 20, rotating shuttle driving shaft 22 etc. are configured in the body board portion 6.Not shown movable cutting knife etc. also is configured in the cylinder board portion 8.Cylinder board portion 8, the part that will be used to hold beyond the space of mechanism elements such as said gear device 24, rotary shuttle shaft 26, rotating shuttle 28 and movable cutting knife is told, can be made sewn object cylindraceous.
As Figure 6 and Figure 7, in rotating shuttle 28, be formed with fuel feeding path 32, and connecting not shown fuel feed pump to these fuel feeding path 32 fuel feeding to inside.In fuel feed pump, carry the lubricating oil of carrying by not shown oil pump from food tray 10.Supply to the lubricating oil of fuel feeding path 32 from fuel feed pump, carry out sliding part lubricated of the sliding surface of rotating shuttle axle bush 30 and rotary shuttle shaft 26 and rotating shuttle 28.Holding dressing in rotating shuttle 28 has the bobbin case 38 of bobbin 36.Geared system 20,24 is installed in respectively in the gear-box 40,42, with screw lower cover 44,46 is fixed on the bottom of board 2 in the bottom of each geared system 20,24.
Near rotating shuttle 28, disposing not shown movable cutting knife, catching and cutting off suture with this movable cutting knife.This movable cutting knife is supported on the cutting knife fork arm 48.Not shown tangent line drive division is configured in the body board portion 6, is used to drive the connecting rod body 50 of movable cutting knife, and one end 50a is connected with the tangent line drive division, other end 50b is connected with cutting knife fork arm 48.
Below, illustrate that with reference to Fig. 1 and Fig. 2 the rotating shuttle of present embodiment characteristic covers 12 switching mechanisms.This switching mechanism has: be fixed in the track segment 102 on the rotating shuttle lid 12 about quilt in couples, 102, be formed separately in track segment 102, guide-track groove 104 on 102,104, be fixed in that board portion 2 (body board portion 6) goes up and with each guide-track groove 104,104 two pairs of chimeric guide pins 106,106,106,106.Example is guide-track groove 104 to be located at rotating shuttle cover 12 sides among the figure, and guide pins 106 is located at board portion 2 sides, but also can in contrast guide-track groove 104 be located at board portion 2 sides, guide pins 106 is located at rotating shuttle covers 12 sides.
Two guide-track grooves 104 are formed the circle of curvature that roughly is circular-arc, and this center of curvature 12C is positioned at the below that breaks away from rotating shuttle lid 12 and than near the position the sidewall 108 of the front of the more close cylinder board in the next door 108 of food tray 10 portion 8.Possible words are best outer distolateral consistent with sidewall 108.Rotating shuttle lid 12 is that move at the center opening and closing along two guide-track grooves 104 when moving with this center of curvature 12C.Round D1 among the figure is that the distance with 104 ones of lid 12 the guide-track grooves from center of curvature 12C to rotating shuttle is the drawn circle of radius, and the movement locus that the guide-track groove of rotating shuttle lid 12 is 104 ones is the part of this circle D1.
In addition, each is to above-mentioned guide pins 106,106, relatively is disposed at corresponding on the circular arc of each guide-track groove 104,104 and can be chimeric with it.
Rotating shuttle lid 12, the lower end 110 of its food tray 10 sides is configured in the position than next door 108 more close food tray 10 sides of food tray 10.In Sewing machines running, pass through lower end 110 from rotating shuttle clan oil down from the bottom of rotating shuttle lid 12 and be back in the food tray 10.The center of curvature 12C that has formed the bend of roughly circular-arc curvature shapes and this center of curvature and guide-track groove 104 on this lower end 110 is unanimous on the whole.Therefore, this lower end 110 tilts downwards, and near the lubricating oil this lower end 110 refluxes in food tray 10.Round D2 among the figure is that the distance with lid 12 the lower end 110 from center of curvature 12C to rotating shuttle is the drawn circle of radius, and the movement locus of the lower end 110 of rotating shuttle lid 12 is parts of this circle D2.
The 112nd, the position-limit mechanism that restriction rotating shuttle lid 12 moves when opening is arranged on each track segment 102,102.In detail as shown in Figure 3, by: be fixed in spacer pin 114 and spring steady pin 115 in the board portion 2, be fixed in fitting pin 116 on the track segment 102, can cooperate and can and the limiting component 118 that is abutted against of spacer pin 114, be located at spring 120 formations between limiting component 118 and the spring steady pin 115 with fitting pin 116.Limiting component 118 forms hook portion 118a at the one end, and by this hook portion 118a being hung on the fitting pin 116, being connected with rotating shuttle lid 12.The other end of limiting component 118 is connected with board portion 2 and is formed with the lug boss 118b that protrudes to board portion 2 directions by spring 120.
Rotating shuttle lid 12, under the state that is installed on board portion 2, each is drawn to the rotating shuttle of guide-track groove 104,104 by spring 120 guide pins 106,106 and covers the body board side (right side of Fig. 2) that 12 front end faces cooperate.Therefore, rotating shuttle lid 12, by the elastic force of left and right sides spring 120 and about the cooperation of each two pairs of guide pins 106,106,106,106 and track segment 102,102 front end faces fixedly be supported in the board portion 2.
When the line of bobbin 36 (Fig. 6,7) is consumed and changes bobbin case 38, rotating shuttle lid 12 overcome spring 120 pulling force and along the circular arc of track segment 102,102 by about two pairs guide pins 106,106 guiding, turn to Fig. 2 left side sleekly.When rotating rotating shuttle when covering 12, limiting component 118, and limits (stopping) in the moment that lug boss 118b and spacer pin 114 are abutted against and opens the rotation that rotating shuttle covered at 12 o'clock to spacer pin 114 side shiftings by fitting pin 116.Therefore, position-limit mechanism 112 is these rotating shuttle lid 12 structures that move of restriction (stopping) when 12 on rotating shuttle lid turns to the angle that can change the processing bobbin case at least.
Therefore the rotating shuttle lid 12, are the position 12a shown in the double dot dash line of center Fig. 2 of turning to 112 restrictions of limited mechanism with center of curvature 12C.In this rotation process because the lower end 110 of rotating shuttle lid 12 moves along the circumference of the round D2 of Fig. 2, so and the distance between the next door 108 of food tray 10 be roughly necessarily, can not interfere in it.Therefore, the gap 122 between the next door 108 of the lower end 110 of food tray 10 sides of rotating shuttle lid 12 and food tray 10 can be dwindled, and effect can be obtained to prevent from food tray 10 leakage of oil outside Sewing machines.
In addition, the lower end 110 of rotating shuttle lid 12 tilts downwards, but when the inclination of this below always is maintained at the switching of rotating shuttle lid 12.So, residue near the oil the lower end 110, when rotating shuttle lid 12 is opened, do not cover that 12 bottom surface 12d move and reflux to food tray 10 to rotating shuttle.
In the present embodiment, be open end 104a owing to be located at the front that rotating shuttle covers the guide-track groove 104 of 12 sides, so can simply rotating shuttle lid 12 be pulled down from board 2.After when pulling down, taking off the hook portion 118a of limiting component 118, remove the restriction of position-limit mechanism 112, as long as be that rotating shuttle lid 12 is rotated up to from guide-track groove 104 two guide pins 106 being unloaded in the center with center of curvature 12C with this from the fitting pin 116 of track segment 102.
In the present invention, owing to be provided with the guide-track groove 104 that is circular-arc substantially and the guide pins 106 chimeric with this guide-track groove 104, and can open and close along the shape of guide-track groove 104, so can select the center of its movement locus arbitrarily.This point be with in the past hinge etc. itself be the feature of the supporting point part fundamental difference of center of rotation.Therefore, according to switching mechanism of the present invention, the free degree height of selected rotary motion trace and center of rotation can be defined as center of rotation with optimal point under all in design restrictions.
More than, be the explanation of illustrated embodiment with reference to the accompanying drawings, but the present invention is not limited to this embodiment and various variations can be arranged.For example, present embodiment is the example that is applicable to the double diagonal stitch Sewing machines, but so long as the rotating shuttle lid of covering cylinder board subordinate side can be with respect to the Sewing machines of board portion switching, any Sewing machines can both be suitable for.
(invention effect)
According to the present invention 1 roughly be circular-arc owing to be provided with a side of board section and rotating shuttle cover Guide-track groove, and be provided with the guide pins chimeric with this guide-track groove the opposing party, so can select arbitrarily Rotating shuttle cover the movement locus center. Therefore, rotary motion trace and the center of rotation of its selected rotating shuttle cover Free degree height, and can under all restrictions in design optimal point be defined as center of rotation. In addition, because fully need not be such as the fragile of hinge etc. and rotation supporting part that price is high, so not Fragile and can cost degradation. And the motion track when opening and closing owing to rotating shuttle cover is to revolve from this The structure of the circular arc centered by the point that shuttle lid leaves downwards, thus can dwindle and the next door of food tray between The gap, can obtain to prevent from this gap the effect of leakage of oil outside sewing machine, and owing to can add High food tray wall also can obtain the effect that prevents that oil from spilling outside sewing machine.
According to the present invention 2, can make rotating shuttle cover successfully mobile with simple structure.
According to the present invention 3, can correctly guide rotating shuttle cover with simple structure, and prevent rotating shuttle cover Neglectful coming off.
According to the present invention 4, can rotating shuttle cover be remained in installment state with simple structure.
According to the present invention 5 owing to turn to the bobbin case that can process at least in the rotating shuttle at rotating shuttle cover During angle, position-limit mechanism limits the movement of this rotating shuttle cover, so can change simply bobbin case.
According to the present invention 6 roughly be circular arc because rotating shuttle cover has in the lower end of food tray side The bend of shape, and the circular arc center of circle of the center of arc of this bend and guide-track groove is unanimous on the whole, so Can make and the next door of food tray between gap turn narrow, thereby obtain to prevent from leaking outside to sewing machine from this gap The effect of oil. And, owing to can increase the food tray wall, can obtain also to prevent that oil from leaking outside to sewing machine The effect that goes out. In addition, residuing near the oil of lower end can be to rotating shuttle cover when opening rotating shuttle cover Below mobile and effectively reflux to food tray.
Claims (4)
1. sewing-machine rotating shuttle lid arrangement, make the cylinder board subordinate side that covers body board portion and stretch out to elongate from this body board portion the rotating shuttle lid, can open and close with respect to described body board portion or cylinder board portion, it is characterized in that:
Either party of described body board portion or cylinder board portion and rotating shuttle lid, be provided with the point that leaves downwards from this rotating shuttle lid and be positioned at the food tray foreign side that is installed in body board portion be the center roughly be circular-arc guide-track groove, be provided with the guide pins chimeric the opposing party with this guide-track groove, described rotating shuttle is covered circular-arc for along described guide-track groove of motion track guiding when opening and closing, and, described rotating shuttle covers has the bend that roughly is circular-arc on the lower end of described food tray side, and the center of arc of the center of arc of this bend and described guide-track groove is unanimous on the whole.
2. sewing-machine rotating shuttle lid arrangement according to claim 1 is characterized in that: have the elastomeric element that described rotating shuttle lid is applied draw power to body board side.
3. sewing-machine rotating shuttle lid arrangement according to claim 1 is characterized in that: be provided with when described rotating shuttle lid is turned to the angle that can only handle the bobbin case in the described rotating shuttle at least, limit the position-limit mechanism that this rotating shuttle lid moves.
4. sewing-machine rotating shuttle lid arrangement according to claim 1 is characterized in that: described lower end tilts downwards.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002135501A JP4084598B2 (en) | 2002-05-10 | 2002-05-10 | sewing machine |
| JP2002135501 | 2002-05-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1456736A CN1456736A (en) | 2003-11-19 |
| CN100398718C true CN100398718C (en) | 2008-07-02 |
Family
ID=29416749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031306942A Expired - Lifetime CN100398718C (en) | 2002-05-10 | 2003-05-07 | Rotary shutter cover |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4084598B2 (en) |
| CN (1) | CN100398718C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4469039A (en) * | 1983-04-20 | 1984-09-04 | Rockwell-Rimoldi S.P.A. | Work feed device in sewing machines |
| CN2180661Y (en) * | 1993-08-30 | 1994-10-26 | 卢涛 | Shuttle carrier and shuttle mechanism for sewing machine |
| JPH11235492A (en) * | 1998-02-20 | 1999-08-31 | Juki Corp | Cylindrical sewing machine |
-
2002
- 2002-05-10 JP JP2002135501A patent/JP4084598B2/en not_active Expired - Fee Related
-
2003
- 2003-05-07 CN CNB031306942A patent/CN100398718C/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4469039A (en) * | 1983-04-20 | 1984-09-04 | Rockwell-Rimoldi S.P.A. | Work feed device in sewing machines |
| CN2180661Y (en) * | 1993-08-30 | 1994-10-26 | 卢涛 | Shuttle carrier and shuttle mechanism for sewing machine |
| JPH11235492A (en) * | 1998-02-20 | 1999-08-31 | Juki Corp | Cylindrical sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003326072A (en) | 2003-11-18 |
| CN1456736A (en) | 2003-11-19 |
| JP4084598B2 (en) | 2008-04-30 |
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