CN1904175B - Sartorius - Google Patents
Sartorius Download PDFInfo
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- CN1904175B CN1904175B CN200610108513XA CN200610108513A CN1904175B CN 1904175 B CN1904175 B CN 1904175B CN 200610108513X A CN200610108513X A CN 200610108513XA CN 200610108513 A CN200610108513 A CN 200610108513A CN 1904175 B CN1904175 B CN 1904175B
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- motor
- partition wall
- chassis
- needle seat
- curved needle
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Abstract
The present invention relates to a sewing machine, a motor configuration region is arranged on the different position of the discharging hole for configuring principal axis motor, X motor, Y motor, theta motor etc, wherein the discharging hole is disposed on the junction of the upright post, the area between the motor configuration region and the forming part of discharging hole is spaced by the dividing wall projecting towards downside from the bottom of the substrate frame. This arrangement prevents the used lubricating oil introduced from discharging holes from getting into the electric motor arranged in the motor configuration region.
Description
Technical field
The present invention relates to a kind of Sewing machines, especially relate to drive source with various mechanisms and be electro-motor and be installed in Sewing machines in the motor installation region of being located at below the chassis.
Background technology
The industrial round end button holing sewing machine that is used to make the round end keyhole stitch seam has: the feed mechanism that carries out synchronously drivenly making mechanism to shank with this shank looper in opposite directions, rotating mechanism that the curved needle seat that is provided with looper and shank rotate around vertical axis and the feeding table that makes processing cloth are moved on directions X and Y direction.Is that electro-motor carries out drive controlling according to the stitching data to these drive sources of making mechanism, rotating mechanism and feed mechanism, can form various round end keyhole stitch seam thus.
Electro-motor as the feed mechanism drive source is at X motor and Y motor that feeding table is moved on directions X and Y direction respectively.Electro-motor as the rotating mechanism drive source is the θ motor that curved needle seat and shank are rotated around vertical axis.The main motor that X motor, Y motor and θ motor are made mechanism with driving is installed in the installation region of being located at below the chassis separately.
The feeding table drive unit that the Japan Patent spy drives the button holing sewing machine that 2000-300880 communique (Japanese Patent ApplicationLaid-Open No.2000-300880 (2000)) put down in writing has: make longitudinal moving mechanism that feeding table vertically moves and the transverse moving mechanism that feeding table is laterally moved.The CD-ROM drive motor (being equivalent to the X motor) of CD-ROM drive motor of longitudinal moving mechanism (being equivalent to the Y motor) and transverse moving mechanism with the posture on the driving axial be fixed on chassis below.
The Sewing machines that the real public clear 60-29992 communique of Japan Patent (Examined Japanese Utility ModelPublication No.60-29992 (1985)) is put down in writing can be connected a side of the Sewing machines casing of integrally formed chassis, column and horn freely to rotate around trunnion axis with oil vessel on the sewing machine table.The Sewing machines casing is by the lodging posture when the changeable one-tenth of the rotation of trunnion axis is made or adjust the vertical-position that operation is used.Though driving make a plurality of electro-motors such as pin pendulum motor of motor of sewing machine, driving needle swinging mechanism of mechanism not shown be installed in the chassis that constitutes the Sewing machines casing below.
When the various mechanisms that Sewing machines had are carried out oil lubrication, adopt usually and fuel tank is set, the lubrication system that makes the lubricating oil that accumulates in this fuel tank internal utilize wick to supply with to the drive division and the sliding part of each mechanism in the horn inside of topmost.The horn internal mechanism has been carried out lubricated used lubricating oil flow to the column inner face of supporting horn and drip, reclaimed by the lead bottom of chassis of the tap on the connecting portion that is arranged on column and chassis.
When drive the Sewing machines that the 2000-300880 communique put down in writing the Japan Patent spy on, adopting this lubrication system, the used lubricating oil that flows to the column inner face from horn inside and drip, from the stream periphery of tap below chassis and spread, and drop on down with posture upwards and be fixed on the X motor and Y motor below the chassis, thereby might enter the inside of these motors.
In X motor and Y motor, assembled and detected the encoder of position of rotation separately for the FEEDBACK CONTROL that realizes the feeding table drive unit, if attached on the encoder, then there is the problem of position of rotation accuracy of detection decline in the lubricating oil that enters X motor and Y motor inside.The occasion that particularly has the encoder of optical pickocff in use, the lubricating oil that adheres to can make accuracy of detection significantly descend, and have the problem that occurs misoperation in the FEEDBACK CONTROL.
If it also is the same adopting above-mentioned lubrication system on the Sewing machines that the real public clear 60-29992 communique of Japan Patent is put down in writing, existence flows to the following of chassis from the used lubricating oil of horn inside and spreads, and drops on the problem on the motor that is installed on below the chassis down.Particularly in the Sewing machines that the real public clear 60-29992 communique of Japan Patent is put down in writing, with horn from the lodging posture when switching to vertical-position, drip easily attached to the lubricating oil below the chassis, very likely enter the motor inside that is installed on the chassis, have the problem that occurs misoperation in the FEEDBACK CONTROL of each motor.
After lubricating oil enters motor inside, the problem of the lubricated rubber adhesive deterioration with lubricating grease and motor inner lead that also can produce the bearing that makes the supporting motor drive shaft.
Summary of the invention
The Sewing machines of technical scheme 1, column be connected chassis above, the following fixed configurations of described chassis electro-motor, on described chassis and position that described column is connected, be formed with tap, be used for used lubricating oil is exported to the bottom of described chassis, it is characterized in that, the motor configurations zone of the described electro-motor of configuration is arranged on forms different position, position with described tap below the described chassis, have below described chassis outstanding downwards, to the 1st partition wall of separating between the formation position of described tap and the described motor configurations zone.
Configuration fixedly be arranged on corresponding column connecting portion and be located on the different position, the formation position of the tap on the chassis in the motor configurations zone of electro-motor below chassis, utilizes the 1st outstanding below chassis partition wall to separating between motor configurations zone and the tap formation position downwards.Thus, the used lubricating oil that exports to the chassis bottom from tap flows on the 1st partition wall and drips, thereby can not enter in the motor configurations zone.
The Sewing machines of technical scheme 2 is characterized in that, described column is connected width one side of described chassis, and described motor configurations zone is provided with along the width opposite side of described chassis.
Thus, can on the position different, fully guarantee the motor configurations zone, can utilize the 1st partition wall, prevent that effectively lubricating oil from entering in the motor configurations zone reliably with used lubricating oil blocking-up with the tap that is positioned at the column connecting portion.
The Sewing machines of technical scheme 3,4, it is characterized in that having the box-shaped partition wall, a described box-shaped partition wall and the shared at least part of described the 1st partition wall, and this box-shaped partition wall is outstanding downwards below described chassis, described tap is formed the position surround on every side.
Thus, the used lubricating oil double blocking that utilizes box-shaped partition wall and the 1st partition wall to derive from tap can not only prevent reliably that lubricating oil from entering in the motor configurations zone, can also prevent that lubricating oil from entering the zone beyond the motor configurations zone.
The Sewing machines of technical scheme 5～8, it is characterized in that, below described chassis, have the curved needle seat installation portion that curved needle seat is installed, have outstanding below described chassis, the 2nd partition wall downwards separating between described motor configurations zone and the described curved needle seat installation portion.
Thus,, also can utilize the 2nd partition wall, can prevent reliably that the lubricating oil of the lubricated usefulness of curved needle seat from entering in the motor configurations zone this lubricating oil blocking-up even follow the occasion that the action of looper is dispersed towards periphery at the lubricating oil of supplying with curved needle seat.
The Sewing machines of technical scheme 9 is characterized in that, an end of described the 2nd partition wall and described the 1st partition wall continuous midway utilizes the 1st, the 2nd partition wall to form the partition wall of the Y font that extends along described chassis length direction.
Thus, utilize the 1st, the 2nd partition wall that constitutes along the Y font partition wall of chassis length direction extension, can block lubricating oil reliably and enter in the motor configurations zone, and, the partition wall of Y font plays a role as strengthening material, can improve the rigidity of chassis.
The Sewing machines of technical scheme 10,11, it is characterized in that, comprise as described electro-motor: make processing cloth feeding table feeding is moved on directions X and Y direction respectively X motor and Y motor, make the θ motor that shank and curved needle seat rotate, the Spindle Motor of driving main shaft rotation.
Thus, can prevent that lubricating oil from entering to be configured in and comprise X motor, Y motor, θ motor and Spindle Motor in all interior motors in the motor configurations zone, can keep the driveability of each motor, improve reliability.
Description of drawings
Fig. 1 is the stereogram of the round end button holing sewing machine of embodiments of the invention.
Fig. 2 is the front view of round end button holing sewing machine.
Fig. 3 is the right view of round end button holing sewing machine.
Fig. 4 is the stereogram that oblique below is seen from the right side of chassis.
Fig. 5 is the stereogram that oblique below is seen from a left side of chassis.
Fig. 6 is the upward view of chassis.
The right view of the round end button holing sewing machine when Fig. 7 switches to vertical-position for expression.
The specific embodiment
Describe preferred embodiment of the present invention with reference to the accompanying drawings in detail.
At Sewing machines of the present invention is in the illustrated round end button holing sewing machine, below chassis, be formed with partition wall, surround with the tap on the connecting portion that will be opened in chassis and column, to block via the used lubricating oil that tap is derived to the chassis bottom, prevent that it from entering in the motor configurations zone that disposes electro-motor.
To Sewing machines of the present invention is that round end button holing sewing machine 1 is made an explanation.
As Fig. 1～shown in Figure 3, round end button holing sewing machine 1 comprises: the support 2 of the rectangular box shape of top all-round opening, embed chassis 3 on the opening portion be carried on support 2, from upright column of establishing 4 in the rear portion of chassis 3 and the horn 5 that forwards extends from the top of column 4, and this round end button holing sewing machine 1 carrying is fixed on the not shown sewing machine table.
As shown in Figure 3, be equipped with the main shaft 8 of fore-and-aft direction in horn 5 inside, be provided with the shank 7 that the lower end is installed with the hollow form of suture needle 6 at the leading section of horn 5.The action that shank 7 is followed shank up-down mechanism corresponding with the rotation of main shaft 8 and needle swinging mechanism (not shown) alternately moves up and down separating on the position, the left and right sides of regulation amplitude.
As shown in Figure 7, chassis 3 is being connected with support 2, follows around the rotation along the trunnion axis of trailing edge and can switch to vertical-position from flat-hand position.As Fig. 1～shown in Figure 3, on chassis 3, be provided with and go up the feeding table 9 that moves, keep processing cloth at directions X (left and right directions) and Y direction (fore-and-aft direction) respectively.
In the underside of forward of chassis 3, the curved needle seat (not shown) with pairing left and right looper is set accordingly with the down position of shank 7 and suture needle 6.As Fig. 4 and shown in Figure 6, be provided with curved needle seat installation portion (installing hole) Fa that the installation curved needle seat is used in the left and right directions substantial middle position of chassis 3 front portions.
Be provided with the fuel tank that storage lubricating oil is used in horn 5 inside.The lubricating oil of fuel tank internal supplies to looper drive and the various driving mechanism of being located on the curved needle seat described later respectively by wick.Omitted the diagram of fuel tank and wick.
Structure to base plate 10 with chassis 3 is made an explanation.
Below chassis 3, the reverse side that forms the position from tap Fb, Fc is the rear portion, right side until anterior, is provided with among Fig. 6 and surrounds the motor configurations zone ME that represents with chain-dotted line.In the ME of motor configurations zone, from rear side successively Spindle Motor 13, Y motor 14, θ motor 15, X motor 16 are fixed on chassis 3 below.
Bottom at chassis 3 is provided with: the action of following X motor 16 makes feeding table 9 in the directions X travel mechanism that moves on the directions X and follow the action of Y motor 14 is moved feeding table 9 on the Y direction Y direction travel mechanism.θ motor 15 is motors that the rotating mechanism that shank 7 and curved needle seat are rotated around vertical axis is driven, and rotating mechanism is set to the inside of column 4 and horn 5 always from the downside of chassis 3.Omit directions X and moved the diagram that structure machine, Y direction move structure machine and rotating mechanism.
Spindle Motor 13 has output backward, and has the encoder 13a that is assembled in the front side.Affixed drive pulley 17 on the output of Spindle Motor 13, at this drive pulley 17 and be fixed in to open between the driven pulley 19 of main shaft 8 rearward end and be provided with synchronous belt 18, the rotation of Spindle Motor 13 sends main shaft 8 to by drive pulley 17, synchronous belt 18 and driven pulley 19, driving main shaft 8 rotations.
Separate by outstanding downwards the 1st partition wall 20 that is provided with below chassis 3 between tap Fb, Fc and the motor configurations zone ME.Surround by the outstanding downwards box-shaped partition wall 21 that is provided with below chassis 3 around tap Fb, the Fc.A box-shaped partition wall 21 and the 1st partition wall 20 part separately are shared.Separate by outstanding downwards the 2nd partition wall 22 that is provided with below chassis 3 between curved needle seat installation portion Fa and the motor configurations zone ME.
As shown in Figure 6, the 1st partition wall 20 forwards extends along the base portion 4a of column 4, arrives the left side near curved needle seat installation portion Fa always.Continuously, ME forwards extends along the motor configurations zone, arrives the right side near curved needle seat installation portion Fa always near the rear end of the 2nd partition wall 22 and the 1st partition wall 20.Constitute along the length direction (fore-and-aft direction) of chassis 3 partition wall that extend, that have the flat shape of Y font by the 1st partition wall 20 and the 2nd partition wall 22.
As shown in Figure 4 and Figure 5,1st, aspect ratio box-shaped partition wall 21 height of the 2nd partition wall 20,22 are set in than the electro-motor except that Spindle Motor 13 in the ME of motor configurations zone, are the also low position of foot of Y motor 14, θ motor 15 and X motor 16.The the 1st, the 2nd partition wall 20,22 of the Y font that extends along the fore-and-aft direction of chassis 3 also plays a role as the strengthening material of the flexural rigidity of strengthening chassis 3.
To Sewing machines of the present invention be round end button holing sewing machine 1 be located at the 1st, the 2nd partition wall 20,22 on the chassis 3 and the effect and the effect of box-shaped partition wall 21 made an explanation.
In the reverse side that is arranged on tap Fb, Fc on chassis 3 and the position that column 4 is connected, promptly at the following right side of face of chassis 3, be set with motor configurations zone ME from the rear end towards the place ahead, and in the ME of this motor configurations zone, dispose Spindle Motor 13, Y motor 14, θ motor 15 and X motor 16.
As previously mentioned, tap Fb, Fc become makes horn 5 inner used lubricating oil export to the path of chassis 3 downsides via column 4 inside, but is separated by the 1st outstanding downwards below chassis 3 partition wall 20 between the formation position of tap Fb, Fc and the motor configurations zone ME.
Therefore, the wall that the oil of deriving from tap Fb, Fc flows to the 1st partition wall 20 drips downwards, can block reliably to the entering of motor configurations zone ME, and lubricating oil can not enter the inside of Spindle Motor 13, Y motor 14, θ motor 15 and X motor 16.Thus, can prevent the lubricated rubber adhesive deterioration of the bearing of each motor inside, prevent that the driveability of each motor from descending, improve reliability with lubricating grease and lead.
As previously mentioned, Spindle Motor 13, Y motor 14, θ motor 15 and X motor 16 have encoder 13a～16a, but lubricating oil also can not enter the inside of these encoders 13a～16a.Thus, can not cause the detection of encoder 13a～16a bad, can improve reliability based on the FEEDBACK CONTROL of each testing result.
The 1st partition wall 20 extends upward setting along motor configurations zone ME in front and back.Thus, as shown in Figure 7, even when chassis 3 is switched to vertical-position, lubricating oil also capable of blocking enters in the ME of motor configurations zone.
Surround by box-shaped partition wall 21 around tap Fb, the Fc with the 1st partition wall 20 shared parts.Thus, the lubricating oil that drips from tap Fb, Fc also can not only more effectively be blocked lubricating oil and enter in the ME of motor configurations zone by 21 blocking-up of box-shaped partition wall, can prevent that also the zone of lubricating oil beyond the ME of motor configurations zone from entering.
Be located at for curved needle seat is installed between the curved needle seat installation portion Fa and motor configurations zone ME of chassis 3, separate by the 2nd outstanding downwards below chassis 3 partition wall 22.
Thus, even follow the action of looper and the occasion of dispersing towards periphery at the lubricating oil of supplying with curved needle seat, also can utilize the 2nd partition wall 22 reliably with this lubricating oil blocking-up, can also prevent to be used for the lubricated lubricating oil of curved needle seat reliably and enter in the ME of motor configurations zone.
Continuous near the rear end of the 2nd partition wall 22 and the 1st partition wall 20, and near the partition wall of the Y font the 1st partition wall 20 constitutes arrival curved needle seat installation portion Fa.Thus, can further improve lubricating oil barrier effect to motor configurations zone ME.
The the 1st, the 2nd partition wall 20,22 of Y font is arranged on the left and right directions substantial middle position of chassis 3, and across the roughly total length of fore-and-aft direction, as previously mentioned, also the strengthening material as chassis 3 plays a role.Can strengthen the flexural rigidity of chassis 3 thus.
The following describes the variation of the embodiment of above explanation being carried out the locality change.
1) the 1st partition wall 20 and the 2nd partition wall 22 are not the continuous Y font partition wall in rear portion yet, but extend along fore-and-aft direction independently of one another.
2) also the base portion 4a of column 4 can be connected with the right side, rear portion of chassis 3, motor configurations zone ME be set at the following left side of face of chassis 3.
3) in the ME of motor configurations zone, be not limited to Spindle Motor 13, Y motor 14, θ motor 15 and X motor 16, also configurable other motors also can be configured part or all and other motors in Spindle Motor 13, Y motor 14, θ motor 15 and the X motor 16 in combination.
According to above detailed description as can be known, in Sewing machines of the present invention, configuration fixedly is being arranged on the chassis on the position different with the tap of being located at the column connecting portion in the motor configurations zone of electro-motor, is utilizing partition wall outstanding below chassis downwards separating between this motor configurations zone and the tap.Thus, can prevent to enter in the motor configurations zone, prevent that lubricating oil from entering configuration and being fixed in the various motors in the motor configurations zone, can not cause the detection of the encoder that each motor has bad from the lubricating oil that tap is derived, the driveability that can prevent each motor descends, and improves reliability.
Claims (11)
1. Sewing machines, column be connected chassis above, the following fixed configurations of described chassis electro-motor, on described chassis and position that described column is connected, be formed with tap, be used for used lubricating oil is exported to the bottom of described chassis, it is characterized in that
The motor configurations zone of the described electro-motor of configuration is arranged on forms different position, position with described tap below the described chassis,
Has below described chassis the 1st partition wall outstanding, downwards to separating between the formation position of described tap and the described motor configurations zone.
2. Sewing machines as claimed in claim 1 is characterized in that, described column is connected width one side of described chassis, and described motor configurations zone is provided with along the width opposite side of described chassis.
3. Sewing machines as claimed in claim 1, it is characterized in that having the box-shaped partition wall, a described box-shaped partition wall and the shared at least part of described the 1st partition wall, and this box-shaped partition wall is outstanding downwards below described chassis, described tap is formed the position surround on every side.
4. Sewing machines as claimed in claim 2, it is characterized in that having the box-shaped partition wall, a described box-shaped partition wall and the shared at least part of described the 1st partition wall, and this box-shaped partition wall is outstanding downwards below described chassis, described tap is formed the position surround on every side.
5. Sewing machines as claimed in claim 1 is characterized in that, has the curved needle seat installation portion that curved needle seat is installed below described chassis,
Have outstanding below described chassis, the 2nd partition wall downwards to separating between described motor configurations zone and the described curved needle seat installation portion.
6. Sewing machines as claimed in claim 2 is characterized in that, has the curved needle seat installation portion that curved needle seat is installed below described chassis,
Have outstanding below described chassis, the 2nd partition wall downwards to separating between described motor configurations zone and the described curved needle seat installation portion.
7. Sewing machines as claimed in claim 3 is characterized in that, has the curved needle seat installation portion that curved needle seat is installed below described chassis,
Have outstanding below described chassis, the 2nd partition wall downwards to separating between described motor configurations zone and the described curved needle seat installation portion.
8. Sewing machines as claimed in claim 4 is characterized in that, has the curved needle seat installation portion that curved needle seat is installed below described chassis,
Have outstanding below described chassis, the 2nd partition wall downwards to separating between described motor configurations zone and the described curved needle seat installation portion.
9. as each described Sewing machines in the claim 5～8, it is characterized in that an end of described the 2nd partition wall and described the 1st partition wall continuous utilizes the 1st, the 2nd partition wall to form the partition wall of the Y font that extends along described chassis length direction midway.
10. as each described Sewing machines in the claim 1～8, it is characterized in that, comprise as described electro-motor: make processing cloth feeding table feeding is moved on directions X and Y direction respectively X motor and Y motor, make the θ motor that shank and curved needle seat rotate, the Spindle Motor of driving main shaft rotation.
11. Sewing machines as claimed in claim 9, it is characterized in that, comprise as described electro-motor: make processing cloth feeding table feeding is moved on directions X and Y direction respectively X motor and Y motor, make the θ motor that shank and curved needle seat rotate, the Spindle Motor of driving main shaft rotation.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005-217155 | 2005-07-27 | ||
| JP2005217155A JP4830385B2 (en) | 2005-07-27 | 2005-07-27 | sewing machine |
| JP2005217155 | 2005-07-27 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101622535A Division CN102260964B (en) | 2005-07-27 | 2006-07-25 | Sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1904175A CN1904175A (en) | 2007-01-31 |
| CN1904175B true CN1904175B (en) | 2011-07-27 |
Family
ID=37673525
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101622535A Active CN102260964B (en) | 2005-07-27 | 2006-07-25 | Sewing machine |
| CN200610108513XA Active CN1904175B (en) | 2005-07-27 | 2006-07-25 | Sartorius |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101622535A Active CN102260964B (en) | 2005-07-27 | 2006-07-25 | Sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4830385B2 (en) |
| CN (2) | CN102260964B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012075447A (en) * | 2010-09-30 | 2012-04-19 | Brother Ind Ltd | Sewing machine under-cover and sewing machine |
| JP2012075450A (en) * | 2010-09-30 | 2012-04-19 | Brother Ind Ltd | Sewing machine under-cover and sewing machine |
| CN113737407B (en) * | 2021-09-22 | 2023-02-07 | 拓卡奔马机电科技有限公司 | Buttonhole sewing machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2470381Y (en) * | 2001-02-15 | 2002-01-09 | 徐石渊 | Feeding device of sewing machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6029992Y2 (en) * | 1982-02-26 | 1985-09-09 | ジューキ株式会社 | Sewing machine arm support device |
| JP4149078B2 (en) * | 1999-04-26 | 2008-09-10 | Ｊｕｋｉ株式会社 | Feeder drive device for hole sewing machine |
| JP2000308784A (en) * | 1999-04-28 | 2000-11-07 | Juki Corp | Cycle sewing machine |
| JP2000317160A (en) * | 1999-05-06 | 2000-11-21 | Juki Corp | Sewing part swivel device of sewing machine |
| JP2005027847A (en) * | 2003-07-11 | 2005-02-03 | Juki Corp | Sewing machine |
| KR100522143B1 (en) * | 2004-03-05 | 2005-10-18 | 썬스타 산업봉제기계 주식회사 | Sewing machine with oil sealing structure |
-
2005
- 2005-07-27 JP JP2005217155A patent/JP4830385B2/en not_active Expired - Fee Related
-
2006
- 2006-07-25 CN CN2011101622535A patent/CN102260964B/en active Active
- 2006-07-25 CN CN200610108513XA patent/CN1904175B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2470381Y (en) * | 2001-02-15 | 2002-01-09 | 徐石渊 | Feeding device of sewing machine |
Non-Patent Citations (4)
| Title |
|---|
| JP昭63-145820A 1988.06.17 |
| JP特开2003-166526A 2003.06.13 |
| JP特开2004-138140A 2004.05.13 |
| JP特开平9-164284A 1997.06.24 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102260964B (en) | 2012-06-20 |
| CN1904175A (en) | 2007-01-31 |
| JP2007029434A (en) | 2007-02-08 |
| CN102260964A (en) | 2011-11-30 |
| JP4830385B2 (en) | 2011-12-07 |
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