CN101096801A - Sewing machine, bobbin and bobbin case therefor and use - Google Patents
Sewing machine, bobbin and bobbin case therefor and use Download PDFInfo
- Publication number
- CN101096801A CN101096801A CNA200710126282XA CN200710126282A CN101096801A CN 101096801 A CN101096801 A CN 101096801A CN A200710126282X A CNA200710126282X A CN A200710126282XA CN 200710126282 A CN200710126282 A CN 200710126282A CN 101096801 A CN101096801 A CN 101096801A
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- Prior art keywords
- shuttle
- bobbin
- axle
- hub
- sewing machines
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/28—Applications of bobbins for storing the lower thread
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B59/00—Applications of bobbin-winding or -changing devices; Indicating or control devices associated therewith
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/26—Bobbin holders or casings; Bobbin holder or case guards; Bobbin discharge devices
- D05B57/265—Bobbin holders or casings; Bobbin holder or case guards; Bobbin discharge devices for looptakers with vertical axis
Abstract
A sewing machine which may employ a loop-making hook rotating about a vertical axis employs a one-way bobbin and bobbin case. A bobbin can have a larger flange and a smaller flange so as to fit in a suitably configured bobbin case in only one way. The bobbin may have a blind axial opening with a guide groove to fit a winder spindle in only one way so that the bobbin can only be wound in one way. Attempts at incorrect orientations cause the bobbin to protrude from the bobbin case in an obviously incorrect manner. Inadvertent efforts to wind the bobbin incorrectly are likely to be fruitless. Thus, a user can readily install the bobbin in the bobbin case with a proper orientation and with the thread correctly wound. Surprisingly, stitching problems, such as poor seams or the like, can be reduced.
Description
Technical field
The present invention relates to Sewing machines, supply shuttle, the bobbin case of shuttle and the method that on shuttle, winds the line of line in the Sewing machines.The present invention especially but be not to relate to the Sewing machines that is used for family or domestic use uniquely, and can be applicable to industry if desired and other Sewing machines.Usually, the invention provides novel and improved shuttle, bobbin case and shuttle winding method, described method is useful for the Sewing machines that uses the system coil hook that rotates around vertical axis and the Sewing machines of other form.
Background technology
In the use and roll off the production line and form pin seam or use locking-type pin seam or the Sewing machines of other sewing element of other suitable pin seam, run into the bad pin seam or the stitching problem of other bad sewing of producing sometimes.
The United States Patent (USP) NO.699 of Beitzel, 067 discloses the Sewing machines of this form, and it has used the bobbin that is bearing in the bobbin cover, and bobbin cover is rotatably installed in below the workbench.To supply line to pin.
The United States Patent (USP) NO.4 of Johnson, 182,250 and people's such as Rodda United States Patent (USP) NO.4,487,142 disclose the Sewing machines of the rotary hook that has used the effect of coil grabber.Disclosed as these patents, the bobbin case that supporting is wound with the shuttle of line can be disposed in below the sewing machine table, is located immediately to be installed with the pin below of reaching the standard grade.Hook rotate around vertical axis around bobbin case operation, catches from the coil of reaching the standard grade and is spurring it around shuttle.Coil is around rolling off the production line of extending from shuttle to fabric.When it advances, hook unload lower coil and Sewing machines carry line lever line tension at locking-type pin seam or similarly in the pin seam.
More than these patents do not represent to form the problem of bad pin seam, described problem may occur in locking-type pin seam or the shuttle from be contained in bobbin case extracts in the Sewing machines that rolls off the production line.
The above-mentioned explanation of background technology comprises: experience, discovery, understanding or open, disclosed mutually combining, they are unknown for the correlation technique before the present invention, but the invention provides them.This paper once pointed out some this contribution of the present invention especially, and other these contributions of the present invention will become obvious from their context.For no other reason than that enumerated file herein, so the field of described file-it may be different from the present invention-do not allow to be similar to the field of the invention very much.
Summary of the invention
The purpose of this invention is to provide a kind of Sewing machines, it has proposed to form the problem of bad pin seam, can occur in and forms among the locking-type pin seam etc. when the shuttle from be contained in bobbin case extracts when rolling off the production line described problem.Other purpose of the present invention is to provide shuttle, bobbin case and to addressing this problem useful threading method.
An aspect the invention provides a kind of Sewing machines, and it contains pin, described pin be mounted for towards and away from the opposite decline of workpiece (object to be sewn) and ascent direction on make back and forth movement, to use the suturing with thread management workpiece.Described in addition machine contains to install and is used for the shuttle that rolls off the production line to described pin supply.Shuttle can comprise that supporting has wound the line and the hub of each first and second flange, and the opposite ends that first and second flange is positioned at hub is used for line is remained on the hub.In addition, described machine contains bobbin case, and bobbin case is used for supporting shuttle with back and forth movement below workpiece, and bobbin case has the chamber that is used to hold and be located in shuttle.Shuttle and bobbin case are constructed ordinatedly in this novel Sewing machines, so that with the work orientation shuttle is located in the bobbin case chamber, and prevent to be located in shuttle in the inoperative orientation.
For this purpose, the second shuttle flange can be greater than the first shuttle flange.The bobbin case chamber has opening and by the inside narrower part of chamber opening.Opening can hold the second shuttle flange, and narrower part can be held the first less shuttle flange.This structure can make shuttle correctly be located in the bobbin case chamber, but the narrower part in chamber can not be held the second bigger shuttle flange, prevents that thus shuttle is located in the inoperative orientation.
The shuttle hub has axial hole axially to hold shuttle bobbin winoler axle at one.Hub bore interdicts at least partially, is axially inserting in hub bore with another of an axial opposed to prevent shuttle bobbin winoler axle.Use the embodiment of the shuttle of this structure only to match with the bobbin winoler axle with a kind of method.By using predetermined direction of winding, can avoid incorrect coiling.
Unexpectedly, discovery once: the pin seam problem in the locking-type pin seam sewing machine that rolls off the production line that the shuttle that uses from be contained in bobbin case extracts is attributable to the mistake of user in the shuttle of replacing and/or recoil sky.Structural measure provided by the invention is useful overcoming or alleviating in these problems.
Another aspect the invention provides to the shuttle of Sewing machines for line.Described Sewing machines comprises with reaching the standard grade and the following pin of suturing with thread management workpiece, described pin be mounted for towards and away from the opposite decline of workpiece and ascent direction on make back and forth movement.Sewing machines comprises the bobbin case that is used to support shuttle, with back and forth movement below workpiece.Bobbin case has the chamber that holds and be located in shuttle.Shuttle comprise be used to support around line and the hub of each first and second flange, the opposed end that first and second flange is positioned at hub is used for keeping described line on hub.Shuttle and bobbin case are constructed with being engaged and are used for being located in shuttle with the work orientation in the bobbin case chamber, and prevent to be located in shuttle in the inoperative orientation.
The present invention also provides the bobbin case of described fit structure, and provides and have a kind of like this bobbin case that is located in shuttle in it.
Aspect other, the invention provides the method that on a kind of like this shuttle of Sewing machines, winds the line, described method comprises some steps.These steps comprise: when the needs line, by at one shuttle bobbin winoler axle being inserted in the shuttle hub shuttle is assemblied on the shuttle bobbin winoler axle.Line can be by above the shuttle on being installed on shuttle bobbin winoler axle then.Even attempt is axially inserted shuttle bobbin winoler axle in the hub bore opposite, when the blocking of part had prevented that described insertion from attempting, described method comprises took off and redirects shuttle.According to described method, after the shuttle of having removed and redirected incorrect orientation, the shuttle bobbin winoler is inserted in the shuttle now, and shuttle is wound with line.
Description of drawings
Of the present invention and make and use some embodiment of the present invention, and the optimal mode of implementing anticipation of the present invention, below by exemplary method, describe in detail with reference to the accompanying drawings, identical in the accompanying drawings label marks components identical in all each views, and wherein:
Fig. 1 is the preceding three-dimensional view that shows according to an embodiment of the anti-shuttle of makeing mistakes of of the present invention, Sewing machines;
Fig. 2 is the preceding three-dimensional view at the top of Sewing machines, has shown the embodiment that is used for around the shuttle bobbin winoler mechanism of the illustrated shuttle of Fig. 1, and wherein shuttle is installed in above the bobbin winoler axle;
Fig. 3 is the view that is similar to Fig. 2, has shown the shuttle that unloads and have required orientation from the bobbin winoler axle;
Fig. 4 a is the view that is similar to Fig. 3, has shown the part of structure shown in Figure 3, and wherein shuttle has non-required orientation;
Fig. 4 b is similar to views Fig. 4 a, different angles, and wherein shuttle has the non-required orientation shown in Fig. 4 a;
Fig. 5 is the preceding three-dimensional view that is similar to the top of Sewing machines shown in Figure 2, has shown an embodiment according to shuttle method for winding of the present invention;
Fig. 6 is that wherein illustrated shuttle is received with required orientation among Fig. 1 according to the cutaway view of an embodiment of the anti-bobbin case of makeing mistakes of the present invention;
Fig. 7 is the cutaway view of the hook mechanism of rotation, and the hook mechanism of rotation has used all bobbin cases as shown in Figure 6, and the illustrated shuttle as Fig. 1 correctly has been installed in bobbin case;
Fig. 7 a is the view of bobbin case shown in Figure 6, has the shuttle such as Fig. 1 of correct installation;
Fig. 8 has been to use the top perspective view of workbench of Sewing machines of the hook mechanism of rotation shown in Figure 7, has the lid retracted to expose shuttle and bobbin case;
Fig. 9 is the view that is similar to Fig. 7, has shown incorrect shuttle to be installed in attempt in the bobbin case shown in Figure 6; With
Fig. 9 a is the view that is similar to Fig. 7 a, has also shown shuttle is installed in attempt in the bobbin case improperly.
Specific implementation method
The understanding of the present invention is: extract the locking-type sewing or the similar Sewing machines that roll off the production line from the shuttle that is contained in bobbin case and consume a large amount of rolling off the production line possibly.This situation requires the manual continually shuttle that rolls off the production line that changes the outfit.Usually, for doing like this, operator or the user Sewing machines that must stop takes off shuttle and recoils shuttle with ew line from bobbin case.The shuttle of Chong Raoing must reinstall in the bobbin case then.
Though taking off and installing of shuttle is that the program that needs usually is facile also, yet for known machine, manual program can easily arrive one or more mistakes.From the viewpoint of the present invention, these mistakes can cause stitching problem and bad pin seam or other bad sewing.
The invention provides novel, anti-shuttle of makeing mistakes, it is useful for supplying line to Sewing needles.
Especially but be not uniquely, the shuttle of described novelty is useful to the Sewing machines of following form: it contains the pin that is mounted for doing at opposite decline and ascent direction back and forth movement.Usually, in these machines, pin is carried by shank, and shank is towards reaching the last suturing with thread management workpiece that moves and pass pin to use away from workpiece (being sewn thing), and described workpiece for example is one or more layers fabric.For some pin seam, for example staight needle stitches the word pin seam that reaches, and second rolls off the production line can be for transporting to pin below the workbench of supporting fabrics.The shuttle of described novelty can be used for rolling off the production line for defeated this, and for this purpose, it can be installed in below the workbench.
When shuttle used up line, it must be recoiled.This can be by manually taking off shuttle and the bobbin winoler axle that it is installed in the Sewing machines top finished from bobbin case, and at described axle place, shuttle drives with from recoiling such as the line of the bobbin or the coil of wire by the rotation by the Sewing machines supply.Though the shuttle winding process is simple substantially, some mistake of known method is significant.For example, shuttle may be put upside down and twine or twine and embed in the bobbin case on the opposite way round or with wrong method.Also have, winding operation in some cases because installing incorrectly or other factor on the bobbin winoler axle becomes and uncontrollably tangles knotting or even broken string.Illustrated shuttle can alleviate one or more these problems with bobbin case and relevant shuttle bobbin winoler mechanism in the accompanying drawing.
Described Sewing machines can be help in the family or other family in sewing in environment or other correct position.Yet as being tangible for the technical staff, shuttle of the present invention can be used for other Sewing machines.It only is a part that has shown whole Sewing machines.The structure of Xian Shiing not can be taken as any suitable form, as the device of having known technically and for example comprise hand held device or desk-top installation.Though imagination is: the present invention is for by the user that is seated enforcement advantageous particularly operation, that support or be installed in the device on platform top, stand or the analog, but will be understood that, as will maybe becoming significantly, the present invention can implement in other Sewing machines.Directionality mark, such as " the place ahead ", " rear " or " back ", " on ", D score, " left side " reach " right side ", in this article, should be understood that by this user's perception.
As shown in FIG. 1, Sewing machines shuttle 10 comprises center hub 12 hollow, near cylindrical, is used for supporting the line (this figure does not show) of winding, is configured among Fig. 1 to the axis normal of this hub.First flange 14 that shuttle 10 has an end that is positioned at center hub 12 and another end that is positioned at center hub 12, second flange 16 relative with flange 14 are used for retention wire on hub 12.As in Fig. 1 directed, it is down and upper flange that shuttle flange 14 and 16 can be described as respectively.In an illustrated embodiment, they are configured to the axis perpendicular to center hub 12.
As will be further explained in this article, user's mistake when assisting control operation shuttle 10, second flange 16 on diameter significantly greater than flange 14.For example flange 16 can be made into than flange 14 approximately big 2%-10% on diameter, though also can use other ratio.As shown in fig. 1, flange 14 and 16 is the evenly thin dishes with circular periphery, and described dish and center hub 12 integrally reach integrally to be made, and for example becomes the single-piece module.Yet, also can use other shape and structure, comprising: for example polygonal shape and the oblique section in the sagittal plane.Also have, though be shown as similarly, flange 14 or 16 can have the geometry that differs from one another.If desired, between flange 14 and 16, one or more spacer flangers (not shown) can be set, for example to allow shuttle 10 to carry a plurality of lines.If desired, this spacer flanger is preferably less than flange 16.
In the embodiment of circle shown in Figure 1, flange 14 and 16 periphery are positioned on surface circular cone or frustum.
Optionally strengthen chamfering 24 can be located at junction between second flange 16 and the center hub 12 around, and also can be located at junction between first flange 14 and the center hub 12 around, this back chamfering is not shown.
As previously noted, shuttle 10 can be configured to one single, or by the welding, the bonding, make or fit together with the affixed a plurality of parts of securing member.In one embodiment of the invention, optional elastomeric material is molded to form shuttle 10 by durable reaching, and described material for example is the thermosetting synthetic polymerized resin such as pure styrene-acrylonitrile copolymer.
Shuttle 10 can have any suitable dimensions, for example be fit to hold sewing in the common family of the about 100m of about 5-with the quilt of form around cotton thread, the mercerized cotton thread N such as 100% ° 50.One embodiment of the present of invention provide the shuttle 10 of this cotton thread capacity with the about 38m of about 25-.A kind of like this size of shuttle for example is: 20mm overall diameter, 10mm height, and the about 8.0mm of the diameter of center hub.Other shuttle can be proportional or be had other suitable dimensions, as will being tangible for the technical staff.
Shuttle 10 can have the outward appearance and the finishing of any needs, for example is transparent or opaque, colored or achromatic.In one embodiment of the invention, shuttle 10 provides in the scope of transferring than rich shade of the transparent color, second colour and the light color coloured silk that comprise ultramarine, green powder, Huang.
With reference now to Fig. 2-3 and Fig. 5,, shuttle bobbin winoler mechanism 26 can be arranged in the top or the rear portion of Sewing machines 28, has only shown the part of Sewing machines 28 in the accompanying drawings, maybe can turn on and off machine elsewhere when needs.Will be understood that: from the disclosure, not only those parts of the figure sewing releasing but also do not describe can not have any appropriate structures, and described structure is known or conspicuous for the technical staff, perhaps will become known or obvious when technical development.
Shuttle bobbin winoler mechanism comprises the shuttle bobbin winoler axle 30 that protrudes upward from the top of Sewing machines 28 and can be driven rotatably by Sewing machines 28.Bobbin winoler axle 30 can be contained in the hub bore 18.Bobbin winoler axle 30 and hub bore 18 have the structure of locking near the first shuttle flange 14, to prevent shuttle 10 rotatably shuttle 10 is lock onto on the bobbin winoler axle 30 with respect to bobbin winoler axle 30.As seeing from Fig. 1, in an illustrated embodiment, near the locking mechanism that another end of shuttle 10 does not match with bobbin winoler axle 30 second flange 16.
But bobbin winoler axle 30 elasticity are combined in and tighten center hub 12 in the center hub bore 18, with rotation common with it.Bobbin winoler axle 30 can be to be slidingly matched closely in hub bore 18.In one embodiment of the invention, bobbin winoler axle 30 is made by elastomeric material, nominally have greater than the lateral dimension of axial hole 18 and transversely can flexibly be compressed so that can be contained in the hole of center hub 12.This compressibility can be provided by the cannelure opening 32 at bobbin winoler axle 30 free end places.Use this structure, bobbin winoler axle 30 in the slightly larger in diameter at its free end place in hub bore 18.But free end 34 chamferings or be formed in addition enter in the hub bore 18 to guide it.
Locking mechanism can comprise key 36, and key 36 can rotate and is configured to be contained in the keyway 20 with bobbin winoler axle 30.Key 36 can be made into axial ribs, or has other suitable structure, and described rib protrudes from bobbin winoler axle 30.
Bobbin winoler 30 can be made by any suitable material, and for example such as the durable elastic resin of acetal copolymer, the supply of material trade mark of described copolymer for example is HOSTAFORM LW90 BSX (Hoechst A.G.).
On a plurality of retainer 38 configurable peripheries around bobbin winoler 30, so that center hub 12 is along bobbin winoler 30 location.In the illustrated embodiment of institute, retainer 38 has vertical spline form of protruding from bobbin winoler axle 30.During the coiling, the upper end of each retainer 38 provides the bearing of supporting shuttle 10.Each retainer 38 causes bobbin winoler axle 30 to support the ring of shuttle 10 on every side together.
Bobbin winoler axle 30 can a resistance and/or inertia freely rotate around its vertical axis, described resistance and/or inertia can pre-determine, to be convenient to winding operation reposefully.Bobbin winoler axle 30 is shown the position that is in combination drivingly in the accompanying drawings, locates it at this and accepts the rotation driving from Sewing machines 28.In shown specific embodiments, the rotation of shuttle 10 is provided by propeller shaft sleeve 40, and axle sleeve 40 is accepted from Sewing machines 28 rotation drivings.
When shuttle 10 is located on the bobbin winoler axles 30, by with the friction of axle sleeve 40,40 pairs of shuttles of propeller shaft sleeve 10 produce and drive.For this purpose, propeller shaft sleeve 40 has cylinder form, and this cylinder has cylindrical outer surface 42, top surface 44 flat or arch and around the circumferential groove 46 on the last circumferential edge edge of propeller shaft sleeve 40.Propeller shaft sleeve 40 is installed on the driving shaft 48, and driving shaft 48 is drivingly coupled to maybe can be connected in Sewing machines driver (not shown).Driving shaft 48 prolongs the aperture 50 that passes Sewing machines 28 overhead guards.Propeller shaft sleeve 40 has or structure solid or hollow and outer surface 42, and outer surface 42 has coarse or veined final finished surface valuably, combines to help to provide with the flange 14 of shuttle 10 and 16 good driving.If desired, driver to the transmission of propeller shaft sleeve 40 can be controlled such as the control device of switch (not shown) by user's actuating.
When shuttle 10 is positioned at it and drives binding site, the outer surface 42 of propeller shaft sleeve 40 can be radially in conjunction with the less lower flange 14 of shuttle 10, so that it is applied driving.Also have, another is useful but in the non-staple characteristics, when shuttle 10 correctly was located on the bobbin winoler axle 30 facing to retainer 38, the big upper flange 10 of shuttle 10 was combined in the circumferential groove 46 of the present invention.During winding the line, this combination of flange 16 in groove 46 helps the transmission to the driving of shuttle 10, and keeps the aligning of shuttle 10 on bobbin winoler axle 30.One or more retainers 38 can be conditioned along the axial location of bobbin winoler axle 30, are close to combination to be easy to make shuttle flange 16 in the groove 46 of propeller shaft sleeve 40.
In many but non-whole embodiment, hope is removed the ability of bobbin winoler axle 30 shuttle 10 is thrown off from propeller shaft sleeve 40 for the user provides from driving sleeve 40, makes shuttle 10 be installed on the bobbin winoler 30 and takes off the shuttle that installs (winding line) being easy to.This motion that it is desirable for bobbin winoler axle 30 can realize by lever or dial or other mechanical device or the operation by electronics or electronic device (figure does not release).For example, bobbin winoler axle 30 can be supported, make by device shown not activate its rotation do towards and away from the transverse movement of activation point.If desired, bobbin winoler axle 30 can be gone into it by bolt-lock and go out-be gone into binding site.In addition, if desired, driver switch or other driver coupling apparatus (no one is shown) can be connected with the motion of shuttle bobbin winoler axle 30, the rotation of connecting when shifting to shuttle 10 with convenient bobbin winoler axle 30 shuttle 10 drives, and turn-offs described driving when bobbin winoler axle 30 is removed.
Also have, if desired, bobbin winoler axle 30 can flexibly be ordered about into its activation point, uses propeller shaft sleeve 40 thus and applies flexible urging force in conjunction with shuttle 10.This flexible ordering about in conjunction with promoting shuttle 10 is applied driving force and the reliable coiling on shuttle 10 all the time.Sewing machines 28 can have the accurate narrow groove of making on its cover 52, to adapt to this transverse movement.
Being used for shuttle 10 is applied other drive unit that rotates driving will be conspicuous for the technical staff.For example bobbin winoler axle 30 can be applied to shuttle 10 by Sewing machines 28 driven rotary and rotation.In the case, propeller shaft sleeve 40 can be replaced by idle pulley or fixing guide, and described fixing guide is assisted shuttle 10 guiding and is positioned on the bobbin winoler axle 30, but does not drive it.Advantageously, drive unit can be activated by the user, can be started or be stopped the rotation of shuttle 10 by the user.
As shown in Figure 5, the bobbin 54 that is loaded with line can be installed, so that rotation provides line source to shuttle 10 on the online pivot pin 56.Need bobbin pin 56 that resistance to the qualification of shuttle rotation is provided, with avoided around.Can use bobbin retainer 58 that shuttle 10 online pivot pins 56 are kept putting in place.Bobbin pin 56 can be configured on the Sewing machines 28, is adjacent to bobbin winoler axle 30 easily, and has any suitable orientation, for example have dispose the longitudinal axis of bobbin pin 56 of level of approximation, or be in another suitable position and location.
For controlling the travel line 60 that moves to shuttle from bobbin 54, line guide 62 can be set.Line guide 62 can be crossed the line 60 of bobbin retainer 58 from bobbin 54 to hold along the top and bobbin pin 56 longitudinal separations of Sewing machines 28, and the line of bobbin 54 is left in 58 guiding of bobbin retainer.Bobbin winoler preloader 64 is just arranged the downstream of online guide 62, and line 60 coiling guides 62 change the last stroke that it arrives the operation of shuttle 10 over to.This arrangement is used for making shuttle 10 to extract line from bobbin 50, and fitly winds the line with continuous spiral layers.The suitable preloader and the use of one or more guides make and are easy to twine shuttle 10 with suitable tension force.Excessive tensioning can cause thread breakage, and excessive lax can causing excessively supplies line, tangles or twist together.
In the use of shuttle bobbin winoler device of the present invention, before being installed in shuttle 10 on the bobbin winoler axle 30, the user guarantees that the bobbin 54 of suitable line is installed on the bobbin pin 56.Extract the end of a thread out from bobbin pin 56, pass bobbin pin retainer 58 and line guide 62, arrive shuttle 10 around preloader 64.The end of a thread can be fed and pass through wires hole 22, and shuttle 10 can turn over one the circle or two the circle the end of a thread is fixed on the shuttle 10, perhaps it fixes with other suitable method.
The user is installed in shuttle 10 on the shuttle bobbin winoler axle 30 then.By the big central opening that provides by hub bore 18 being provided and having sealed the opposite outward appearance that first flange 14 of continuous surface of flange 16 of another end of shuttle 10 provides of the place, end of shuttle 10, make the user down easily with the correctly directed shuttle 10 of less flange 14.Use this orientation, shuttle 10 is crushed on the bobbin winoler axle 30, and the trough of belt end 34 of compressing bobbin winoler axle 30 is to be contained in the hub bore 18.Bobbin winoler axle 30 can provide the resistance of appropriateness to the decline of shuttle 10, provides good tight sensation to the user.Shuttle 10 is pressed downward to bobbin winoler axle 30 and is located in securely on the retainer 38 until it.The elastic resistance that is provided by the axle end 34 of trough of belt and shuttle is located in to lean against on the retainer 38 effectively combines will be assisted most of users that shuttle 10 is positioned on the bobbin winoler 30 and correctly aimed at propeller shaft sleeve 40, to allow their combinations drivingly.
Even user attempt is installed in shuttle 10 on the bobbin winoler axle 30 with big flange 16 bottom, the flange by atresia combines with the free end 34 of bobbin winoler axle 30, and it is impossible that this effort becomes significantly.This difficulty is released in Fig. 4 a and 4b with figure figure.Therefore, can expect that the user interrupts described attempt apace, and reach hub bore 18 down with flange 14 and seek bobbin winoler axles 30 and come correctly directed shuttle 10.
Preferably aforesaid operations is to finish with the bobbin winoler axle 30 that joins in the activation point.In case the shuttle 10 of the end of a thread with the connection correctly is installed on the bobbin winoler axle 30, then the user can operate suitable control device and comes that it is driven the position 30 immigrations of bobbin winoler axle.This motion can be brought shuttle 10 with bobbin winoler axle sleeve 40 into and be combined, and actuatable driving to bobbin winoler axle sleeve 40, if driver is such connection.The less flange 14 of shuttle 10 is flexibly driven to enter with the outer surface of propeller shaft sleeve 40 to be combined, and big flange 16 is incorporated in the circumferential groove 46.
When shuttle 10 is twined fully, or in another moment that needs, the drive controlling of the actuatable bobbin winoler axle of user to be to finish the rotation of shuttle 10, cuts off line and takes off the shuttle that has wound the line from bobbin winoler axle 30.The shuttle 10 that has now wound the line has been ready to pack into bobbin case to supply line to Sewing needles.The example and the relevant mechanism of a suitable bobbin case will be described now.Being apparent to a skilled reader of other.
Use it and make all bobbin cases that is used for the rotary hook Sewing machines in this way of shuttle 10 effective bobbin cases.In a form known of rotary hook machine, the bobbin case of supporting shuttle be disposed in sewing machine table below, directly be installed with the pin of reaching the standard grade below.Hook rotate around vertical axis around bobbin case operation, from reaching the standard grade pick-up winding and spur it and center on shuttle.Coil is around the roll off the production line arrival fabric of operation from shuttle.When it advanced, hook was thrown off coil, and the lift lever elastic threads of Sewing machines enters in the pin seam.
Use the rotary hook Sewing machines of a kind of form of bobbin case to be disclosed in people's such as above-named Rodda United States Patent (USP) NO.4, in 487,142.The hook rotational structure is made of people's such as Rodda revolving coil pick-up, and carry people such as Rodda its relative configurations of bobbin case 42, can be used to support novel bobbin case of the present invention below Sewing needles, to rotatablely move.The bobbin case of such supporting of the present invention can be used to roll off the production line to form two-wire pin seam to the pin supply, for example uses the locking pin that is supported on the shuttle 10 in the bobbin case of the present invention to stitch.
Bobbin case according to an embodiment of the invention can have the structure of interior frustum correctly to hold shuttle 10, and described interior frustum structure has less diameter in its underpart.Make the shuttle that has wound the line be located in suitably and correctly be aligned in its bobbin case, realize as available this embodiment of the present invention, can prevent the variation of pin seam aspect, incoherence, tension variation, the rolling of sewing performance and the relevant issues that can occur in addition.
Bobbin case of the present invention also can be applicable in the machine of relative simple form, such as the United States Patent (USP) NO.699 of Beitzel, and shown machine in 067, it is bonded to for referencial use herein, and current herein bobbin case can replace the cup-shaped bobbin retainer c of Beitzel.
Among the illustrated embodiment, bobbin case has been followed the present invention in Fig. 6-9a, only can hold shuttle 10 with an orientation, to reduce the mistake that can cause line action problem and/or bad pin seam.This can use such as the shuttle of shuttle 10 and realize, shuttle 10 has the end that produced by the size difference of flange 14 and 16 asymmetry to the end.On the contrary, the end of many known shuttles is reversible to the end and can one be installed in the bobbin case with upper type.Incorrect installation although make it satisfied to the user, has ill-effect to sewing quality.
With reference now to Fig. 6-9a,, illustrated bobbin case is labeled as 70, has calyculus, and described structure has sidewall 71 and opening 72, can be contained in the inner chamber 74 in the bobbin case 70 by opening 72 shuttles 10.Bobbin case 70 has and is configured to shuttle 10 is remained on bottom 75 in the bobbin case.Bobbin case 70 is configured to for example utilize peripheral protuberance 76 to be supported in the suitable rotating mechanism, people's such as all Rodda in this way of described rotating mechanism revolving coil extractor 20.The outside of bobbin case 70 can have the structure that meets its shuttle supporting and supply any needs of line function.
The inner chamber 74 of bobbin case 70 is configured to closely cooperate shuttle 10, and for this purpose, the shape that it has in its underpart is: down on the direction be tilt or cross section reduce, 74 bottoms are less in the chamber.In height, chamber 74 approach shuttle 10 from flange to the flange height, and need be: just satisfy being used for fully holding shuttle 10 for chamber 74.The shape of cross section in bobbin case chamber 74 need meet the shape of shuttle flange 14 and 16, and it is circular at a useful embodiment.Yet will be understood that: chamber 74 need not meet the shuttle shape in all points of given horizontal perimeter, and can meet a plurality of points or the part or the single major part of periphery like this.
Among the embodiment of illustrated bobbin case 70, inner chamber 74 has mid diameter 78 and base diameter 80.Mid diameter 78 is a bit larger tham bottom straight 80.Therefore, between mid diameter 78 and base diameter 80, inner chamber 74 has local cone-shaped or frusto-conical shape.Above mid diameter 78, the horizontal component of inner chamber 74 is generally big with mid diameter 78 at least.Abide by the present invention, the size of inner chamber and construct and selected only can correctly held and be located in an oriented approach.Useful is that geometry is like this: the attempt of being located in shuttle 10 with the alternate manner beyond the correct orientation causes misalignment or other problem, and making significantly can not the operation Sewing machines.
For example, base diameter 80 may be selected to the diameter that is approximately equal to less flange 14, so less flange 14 is a tight fit in the bottom in chamber 74.Determining dimensions can provide little gap, this gap enough prevent less flange 14 by chamber 74 block cause will be to taking out the interference of shuttle 10.Mid diameter 78 can be advantageously greater than the diameter of base diameter 80 with the big flange 16 that may be slightly smaller than shuttle 10.The top of inner chamber 74 can be to hold big flange 16 with little gap greatly fully.According to these sizes, shuttle 10 can correctly be located in by less flange 14 down.Yet if big flange 16 down, described flange will be fixed near the mid diameter 78, make flange 14 outstanding from bobbin case 70.Outstanding flange will become can not be assembled into bobbin case in the Sewing machines it.Shuttle 10 can not flatly insert the bobbin case chamber with hub 12, and flange 14 and 16 can not vertically extend.Therefore, have only a mode make shuttle 10 can with bobbin case 70 assembling, as show.
Can make by the synthetic plastic polymer that resistance to wears of light durable as the bobbin case 70 that shows among Fig. 6, for example such as the phenolic resins of thermosetting phenolic 525 or CB-7843.
Though the embodiment in described and illustrated bobbin case chamber 70 has inner chamber 74, inner chamber 74 has the cross-sectional surface of level, described cross-sectional surface is positioned on the annulus closely holding or to install the flange 14 and 16 of the circle of shuttle 10, but will be understood that: the shaped inner chamber 74 according to flange 14 and 16 can have other shape of cross section or other shuttle structure.For example, shape of cross section can be foursquare, polygonal etc., or irregular.
As being understood by the technical staff, the embodiment of illustrated bobbin case 70 of the present invention can be applicable to have in hook rotational structure and the Sewing machines such as disclosed relevant supporting devices of people such as Rodda, described Sewing machines is used shuttle 10 and is carried out the operation of locking-type pin seam for the defeated line from bobbin case 70, and substitutes the bobbin case insert of being described by people such as Rodda 38.The present invention comprises a kind of like this Sewing machines.
Fig. 7-8 shows the bobbin case 70 in the rotary hook mechanism 81 that is supported on Sewing machines, is used for the line (not shown) from shuttle 10 is supplied to transport to the pin of Sewing machines as rolling off the production line.Easily, though optional, in Fig. 7-9 figure released the machine that its a part of Sewing machines and in Fig. 2-5 local map released can be identical.
Sewing machines shown in Fig. 7-8 comprises spring guide piece 82, and guide 82 matches with bobbin case sidewall 71, and line is through guide 82 operations, and during sewing, guiding is rolled off the production line and strained it.Rotary hook mechanism 81 is supported in the volume of workbench below of Sewing machines, and described volume can be closed by slidable cover 86.Close at Fig. 7 middle cover 86, or be that the shuttle 10 of thinking that is retracted or opens provides access in Fig. 8, make and maybe when needing different lines, can change shuttle 10 when line is depleted.Lid 86 has downward maintenance rib 88.Preferably the size of bobbin case 70 and other associated components is by fixed that sufficient gap 90 is provided, when hook rotational time crack 90 is used to pass line.Other element of rotary hook mechanism and Sewing machines can be as technical known.
In use, the user regains covers 86, take off existing shuttle 10 from bobbin case 70, inserted if present and manually as shown in Figure 5 got ready around shuttle 10.For example as shown in Fig. 7 a, with the correct down orientation of less flange 14, thereby shuttle 10 just easily falls into position suitable in the bobbin case 70.Line is drawn out of from shuttle 10 and locatees in due form to roll off the production line to the pin supply.Lid 86 is closed, and is ready for sewing.
Even the user embeds shuttle 10 with incorrect orientation, for example shown in Fig. 9 and Fig. 9 a with big flange 16 down, flange 16 is fixed near the mid diameter and flange 14 is stretched above workbench 84.Lid 86 can not be closed, and hindered sewing, and this situation will be impelled usually the user to reach down, rotate and insert shuttle 10 again with correct orientation.Because pre-determine at the winding direction of winding operation center line on shuttle 10, the user guarantees to sew with correct installation and correct winding shuttle.As long as other parts of Sewing machines are correctly brought into play function, the user just has reason to expect to produce the pin seam of good quality, till shuttle 10 exhausts line and needs to change.
The additional benefit that can be obtained by the bobbin case 70 of novelty is that it is removed easily and reinstalls, and this makes the cleaning of rotary hook mechanism reach to lubricate and becomes easy.
In the foregoing description, structure herein is described as to be had, contains or comprise certain components, perhaps method herein is described as and has, contains or comprise specific method, expectation be that structure of the present invention and method also mainly comprise or only comprise the specific features of enumerating
Foregoing detailed description is read in conjunction with previous background summary of the invention according to reaching, wherein also stated the relevant information of putting into practice optimal mode of the present invention, and that can advise or state correction, change of the present invention herein and useful embodiment, as will being conspicuous for the technical staff.
Although below described illustrated embodiment of the present invention, certainly can understand: many various corrections are conspicuous for the elementary skill personnel.It is conspicuous perhaps can becoming when technical development.These corrections can be expected in spirit of the present invention and scope or in this explanation invention disclosed scope.
Claims (25)
1. Sewing machines comprises:
A) pin, it is mounted to such an extent that be used for the edge towards making back and forth movement with opposite decline and ascent direction away from workpiece, to use the suturing with thread management workpiece;
B) shuttle (10), it is mounted for rolling off the production line for defeated to pin, shuttle (10) comprise supporting around the hub (12) of line and corresponding first and second flange (14,16) of being positioned at shuttle hub (12) opposite ends place line is remained on the shuttle hub (12); With
C) bobbin case (70), supporting shuttle (10) is to make back and forth movement below workpiece, and bobbin case (70) has the chamber that is used for holding and being located in shuttle (10);
It is characterized in that: shuttle (10) is to construct ground ordinatedly with bobbin case (70), makes and along job orientation shuttle (10) is located in the bobbin case chamber (74), and prevent that shuttle (10) is located in along the inoperative orientation.
2. according to the Sewing machines of claim 1, it is characterized in that: the second shuttle flange (16) is greater than the first shuttle flange (14), bobbin case chamber (74) has opening and from the inside narrower part of chamber opening, opening can hold the second shuttle flange (16) and narrower part can be held the first less shuttle flange (14), thereby can allow shuttle (10) be located in the bobbin case chamber (74), but can not hold the second bigger shuttle flange (16), prevent that thus shuttle (10) is located in along the inoperative orientation.
3. according to the Sewing machines of claim 2, it is characterized in that: shuttle (10) can entirely hold and is located in the bobbin case chamber (74) to be configured in the first less shuttle flange (14) in the described narrower part, the second bigger shuttle flange (16) inserts in the bobbin case chamber (74) so that the bigger second shuttle flange (16) orientation to be set prior to the first less shuttle flange (14), and prevented: the shuttle (10) that is located in and causes of shuttle (10) is given prominence to from bobbin case chamber (74).
4. according to the Sewing machines of claim 2, it is characterized in that: each all has circular periphery first and second shuttle flange (14,16), and bobbin case chamber (74) have inwardly away from the narrower part tapered frusto-conical shape of chamber opening to bobbin case chamber (74).
5. according to the Sewing machines of claim 1, it is characterized in that: each all is plate-like for first and second shuttle flange (14,16), and has circular periphery.
6. according to the Sewing machines of claim 1, it is characterized in that: shuttle hub (12) has the axial hole that is used for holding shuttle bobbin winoler axle (30) on an axial direction, hub bore (18) is interdicted at least partially, inserts in the hub bore (18) on another axial direction opposite with a described axial direction to prevent shuttle bobbin winoler axle (30).
7. according to the Sewing machines of claim 6, it is characterized in that: hub bore (18) is interdicted by the second shuttle flange (16) at least partially, and the second shuttle flange (16) extends across hub bore (18) with sealing hub bore (18).
According to claim 7 Sewing machines, comprise the bobbin winoler axle (30) that is used for going up coiling at shuttle (10), it is characterized in that: bobbin winoler axle (30) can be contained in the shuttle hub bore (18), and shuttle hub bore (18) has the locking mechanism that cooperates with bobbin winoler axle (30) near the first shuttle flange (14), thereby prevents that shuttle (10) is locked in shuttle (10) on the bobbin winoler axle (30) rotatably with respect to bobbin winoler axle (30).
9. Sewing machines according to Claim 8 is characterized in that: shuttle (10) is near the locking mechanism that cooperates with bobbin winoler axle (30) the second shuttle flange (16) not.
10. according to the Sewing machines of claim 9, it is characterized in that: locking mechanism comprises key (36) and keyway (20), and key (36) can rotate with bobbin winoler axle (30), and keyway (20) is used to hold key (36) in hub bore (18).
11. Sewing machines according to Claim 8 is characterized in that: bobbin winoler axle (30) can flexibly be combined in the shuttle hub bore (18), so that tighten shuttle hub (12) for rotating with bobbin winoler axle (30).
12. the Sewing machines according to claim 11 is characterized in that: bobbin winoler axle (30) is made by elastomeric material, nominally it has the lateral dimension greater than hub bore (18), and has groove vertically so that can and can be contained in the hub bore (18) by elastic compression.
13. the Sewing machines according to claim 11 is characterized in that: Sewing machines comprises a plurality of retainers that dispose around bobbin winoler axle (30) on periphery, is used for along bobbin winoler axle (30) location shuttle hub (12).
14. Sewing machines according to Claim 8 is characterized in that: the second shuttle flange (16) have near or in abutting connection with the opening of shuttle hub (12), being used to hold will be by the line on shuttle (10).
15. Sewing machines according to Claim 8, it is characterized in that: bobbin winoler axle (30) can move between activation point and non-activation point, shuttle (10) rotation can be made in activation point place driving force, and shuttle (10) rotation can not be made in non-activation point place driving force.
16. the Sewing machines according to claim 15 is characterized in that: rotatable propeller shaft sleeve is positioned in abutting connection with axle in activation point, drives shuttle (10) thereby go up rotation in axle (30).
17. the Sewing machines according to claim 16 is characterized in that: Sewing machines comprises that be used to hold will be by the bobbin pin of the bobbin of the line on shuttle (10).
18. the Sewing machines according to claim 2 is characterized in that: shuttle (10) is transparent.
19. according to the Sewing machines of claim 2, comprise the bobbin winoler axle (30) that is used in shuttle (10) coiling, it is characterized in that:
Shuttle hub (12) has the axial hole that holds shuttle bobbin winoler axle (30) along an axial direction, hub bore (18) is interdicted at least partially, inserts in the hub bore (18) on another axial direction opposite with a described axial direction to prevent shuttle bobbin winoler axle (30);
Bobbin winoler axle (30) can be contained in the shuttle hub bore (18), and hub bore (18) has the locking mechanism that cooperates with bobbin winoler axle (30), rotatably shuttle (10) is locked on the bobbin winoler axle (30) with respect to bobbin winoler axle (30) so that prevent shuttle (10);
Bobbin winoler axle (30) can flexibly be incorporated in the shuttle hub bore (18), so that tighten shuttle hub (12) rotatably with bobbin winoler axle (30); With
Bobbin winoler axle (30) is made by elastomeric material, nominally it has the lateral dimension greater than hub bore (18), and has groove vertically so that can flexibly be compressed and can be contained in the shuttle hub bore (18).
20. Sewing machines according to claim 2, it is characterized in that: bobbin case (70) can be around upwardly extending axis toward the ground return rotation, when shuttle (10) is installed in the bobbin case (70), shuttle hub (12) extends upward, the second big flange is configured in the top of hub, and the first shuttle method (14) is configured in the bottom of hub.
21. the Sewing machines according to claim 2 is characterized in that: rotary hook mechanism supporting bobbin case (70), rotary hook mechanism is steerable, forming coil by the line that extracts from shuttle (10), and for forming the pin seam coil is supplied to be defeated by pin.
22. be used at the shuttle of Sewing machines for line, described Sewing machines comprises to reach the standard grade and to descend the pin of suturing with thread management workpiece and comprise bobbin case (70), described pin be mounted for towards and away from the opposite decline of workpiece and ascent direction on make back and forth movement, bobbin case (70) supporting shuttle (10) so as below workpiece back and forth movement, bobbin case (70) has the chamber that is used to hold and be located in shuttle (10), shuttle (10) comprise supporting around line hub and comprise corresponding first and second flange (14 of the opposite ends that is positioned at hub, 16) so that line is remained on the hub, it is characterized in that: shuttle (10) is constructed ordinatedly with bobbin case (70), so that shuttle (10) is located in the bobbin case chamber (74), and prevents to be orientated and be located in shuttle (10) along inoperative along job orientation.
23. according to claim 22 shuttle, it combines with bobbin case (70).
24. be used for to reach the standard grade and to descend the method that on shuttle, winds the line on the Sewing machines of suturing with thread management workpiece, described method has been used pin, described pin be mounted for towards and away from the decline of workpiece and ascent direction on make back and forth movement to sew up workpiece, reach the standard grade and be conducted to pin downwards, described method has also used the shuttle that can be arranged in below the pin with rolling off the production line for transporting to pin, wherein shuttle (10) comprise supporting around line hub and lay respectively at first and second flange (14 of the opposite ends of hub, 16), so that line is remained on the hub, shuttle hub (12) has the axial hole that is used to hold shuttle bobbin winoler axle (30), and described method also comprises the steps:
A) when the needs line, shuttle (10) is assembled on the shuttle bobbin winoler axle (30) by shuttle bobbin winoler axle (30) is inserted in the shuttle hub (12); With
B) with wire-wound on the shuttle (10) that is installed on the shuttle bobbin winoler axle (30);
It is characterized in that: shuttle bobbin winoler axle (30) can be contained in the shuttle hub (12) along an axial direction, shuttle hub bore (18) is interdicted at least partially, insert in the shuttle hub bore (18) along an axial direction opposite to prevent shuttle bobbin winoler axle (30) with a described axial direction, described method also comprises: in step a), along a described axial direction shuttle bobbin winoler axle (30) is inserted in the shuttle hub (12), and comprised the steps:
C) even attempt is inserted shuttle bobbin winoler axle (30) in the hub bore (18) with described opposite axial direction, when the blocking of described part stops described insertion to be attempted, take out and redirect shuttle (10); With
D) at completing steps c) afterwards, carry out step a) and b).
25. the method according to claim 24 is characterized in that: Sewing machines comprises bobbin case (70), bobbin case (70) be used to support shuttle (10) in case below workpiece back and forth movement, bobbin case (70) has the chamber that is used to hold and be located in shuttle (10);
Wherein shuttle (10) is configured to ordinatedly with bobbin case (70), make along job orientation shuttle (10) to be located in the bobbin case chamber (74), and prevent that shuttle (10) is located in along the inoperative orientation, and described method also comprises step:
E) shuttle that has wound the line is inserted and is located in the bobbin case chamber (74); With
F) even the shuttle that has wound the line is prevented from being located in the bobbin case chamber (74), the shuttle that taking-up has wound the line from bobbin case chamber (74) redirects the shuttle that has wound the line and reattempts step e).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/427851 | 2006-06-30 | ||
| US11/427,851 US20080000406A1 (en) | 2006-06-30 | 2006-06-30 | Sewing machine, bobbin and bobbin case therefor and use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101096801A true CN101096801A (en) | 2008-01-02 |
Family
ID=38512528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710126282XA Pending CN101096801A (en) | 2006-06-30 | 2007-06-29 | Sewing machine, bobbin and bobbin case therefor and use |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20080000406A1 (en) |
| EP (1) | EP1873293A1 (en) |
| CN (1) | CN101096801A (en) |
| BR (1) | BRPI0702815A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101503847B (en) * | 2008-02-07 | 2012-11-07 | 杜尔克普-阿德勒股份公司 | Sewing machine and winding device for such a sewing machine |
| CN102953237A (en) * | 2012-08-15 | 2013-03-06 | 宁波宇杰电子科技有限公司 | Novel industrial sewing bobbin winder shuttle peg column |
| CN103211681A (en) * | 2009-12-21 | 2013-07-24 | 财团法人纺织产业综合研究所 | Alginate wound dressing as well as manufacture method and manufacture device of alginate wound dressing |
| US8967218B2 (en) | 2009-07-28 | 2015-03-03 | Taiwan Textile Research Institute | Alginate-containing wound dressing, method and apparatus for making the same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012115595A (en) * | 2010-12-03 | 2012-06-21 | Brother Ind Ltd | Bobbin, and sewing machine |
| CN108277584B (en) * | 2018-03-12 | 2020-07-03 | 株式会社东和制作所 | Plastic bobbin and bobbin set of sewing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US699067A (en) * | 1901-08-15 | 1902-04-29 | Georg Gottwald Beitzel | Tension mechanism for the lower threads of sewing-machines. |
| US2190085A (en) * | 1938-02-19 | 1940-02-13 | Belden Mfg Co | Spool |
| DE927066C (en) * | 1951-07-15 | 1955-04-28 | Messerschmitt A G | Sewing machine, in particular table sewing machine, with a winding device |
| US3175783A (en) * | 1962-11-13 | 1965-03-30 | Singer Co | Bobbin for a sewing machine |
| US3173625A (en) * | 1963-01-07 | 1965-03-16 | Singer Co | Bobbins for sewing machines |
| US3323743A (en) * | 1965-09-27 | 1967-06-06 | Walter D Landgraf | Ribbon spool |
| US3499406A (en) * | 1968-06-20 | 1970-03-10 | Singer Co | Control devices for bobbin thread replenishments in lockstitch sewing machines |
| US3861617A (en) * | 1971-07-19 | 1975-01-21 | Singer Co | Bobbin selectable to vary lower thread tension |
| US4284017A (en) * | 1978-07-13 | 1981-08-18 | Starr Wayne E | Rotary hook for sewing machine |
| US4216733A (en) * | 1979-01-08 | 1980-08-12 | The Singer Company | Automatic bobbin winding system |
| US4182250A (en) * | 1979-02-02 | 1980-01-08 | The Singer Company | Bobbin thread control means for a lock stitch sewing machine |
| US4487142A (en) * | 1983-04-14 | 1984-12-11 | The Singer Company | Bobbin case chain stitch insert |
| JP2727017B2 (en) * | 1989-06-09 | 1998-03-11 | 蛇の目ミシン工業株式会社 | Sewing machine lower thread supply control device |
| KR100295091B1 (en) * | 1998-12-19 | 2001-10-26 | 최병준 | Sewing machine failure |
-
2006
- 2006-06-30 US US11/427,851 patent/US20080000406A1/en not_active Abandoned
-
2007
- 2007-06-19 BR BRPI0702815-6A patent/BRPI0702815A/en not_active Application Discontinuation
- 2007-06-21 EP EP07012161A patent/EP1873293A1/en not_active Withdrawn
- 2007-06-29 CN CNA200710126282XA patent/CN101096801A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101503847B (en) * | 2008-02-07 | 2012-11-07 | 杜尔克普-阿德勒股份公司 | Sewing machine and winding device for such a sewing machine |
| US8967218B2 (en) | 2009-07-28 | 2015-03-03 | Taiwan Textile Research Institute | Alginate-containing wound dressing, method and apparatus for making the same |
| CN103211681A (en) * | 2009-12-21 | 2013-07-24 | 财团法人纺织产业综合研究所 | Alginate wound dressing as well as manufacture method and manufacture device of alginate wound dressing |
| CN103211681B (en) * | 2009-12-21 | 2015-04-15 | 财团法人纺织产业综合研究所 | Alginate wound dressing as well as manufacture method and manufacture device of alginate wound dressing |
| CN102953237A (en) * | 2012-08-15 | 2013-03-06 | 宁波宇杰电子科技有限公司 | Novel industrial sewing bobbin winder shuttle peg column |
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0702815A (en) | 2008-02-19 |
| EP1873293A1 (en) | 2008-01-02 |
| US20080000406A1 (en) | 2008-01-03 |
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