CN100425757C - Fabric presser of sewing machine - Google Patents
Fabric presser of sewing machine Download PDFInfo
- Publication number
- CN100425757C CN100425757C CNB021593353A CN02159335A CN100425757C CN 100425757 C CN100425757 C CN 100425757C CN B021593353 A CNB021593353 A CN B021593353A CN 02159335 A CN02159335 A CN 02159335A CN 100425757 C CN100425757 C CN 100425757C
- Authority
- CN
- China
- Prior art keywords
- sewing machine
- programme
- presenting
- last item
- theatrical performance
- 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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Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/02—Presser-control devices
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/12—Presser-foot attachment
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The presser device of the sewing machine is provided with a pushup lever rotatably supported on the back surface of a sewing machine frame composed of a sewing machine arm and a sewing machine bed and energized in one direction by a spring, a connecting rod connected to the pushup lever, a swing shaft rotatably supported by a bush and partially engaged with the connecting rod, a presser table connected to the end part of the swing shaft through a pin, for which the presser foot is fixed to a tip, and a presser bar provided with a forked rod having a guide surface for the presser table and an elastic member engaged with the forked rod. The tip of the presser table is energized downwards around the swing shaft by the presser bar, and a cloth is pressurized to the loading surface of the sewing machine bed by the presser foot. An attachable and detachable bracket is provided on the back surface of the sewing machine frame and the bush is fixed to the bracket.
Description
Technical field
The present invention relates to from top engaging cloth and this cloth is pressed against the cloth-pressing device of the Sewing machines on the loading end.
Background technology
The cloth-pressing device of original Sewing machines, be attached to axis of rocking on presenting a theatrical performance as the last item on a programme by the lining support that is fixed on the sewing machine frame, for example, the cloth-pressing device of so original Sewing machines is documented in the patent documentation 1, please refer to Japan real fair 6---No. 16604 communiques (the 5th figure is blocked on the 2nd a page of left side).And, be fixed on the pressing plate on the front end of presenting a theatrical performance as the last item on a programme, press against by pushing spring assembly (pressure bar) on the processed goods support member (loading end of sewing machine head) of below.In general, the pushing spring assembly possesses two strands of bars and elastic component, and pressing plate is done circular motion by haunting of feeding tooth around axis of rocking when driving Sewing machines.
Yet, in the cloth-pressing device of original Sewing machines, owing to support the lining of axis of rocking to be fixed on the sewing machine frame, so can not change near the arc track of the pressing plate the sewing machine head loading end, its result, when making the kind cloth different with thickness, pressing plate becomes the obstacle that cloth is carried sometimes.In addition, when moving the fixed position of pressing plate on presenting a theatrical performance as the last item on a programme in order to change this arc track, pressing plate can split away off from the portion of making of Sewing machines, its result, the problem that exists Sewing machines not make normally.
Therefore, the objective of the invention is to, a kind of cloth-pressing device of Sewing machines of the arc track that can easily change near the pressing plate the sewing machine head loading end is provided.
Summary of the invention
In order to achieve the above object, the invention provides a kind of cloth-pressing device of Sewing machines, have: can be rotated to support on the back side of the sewing machine frame that constitutes by sewing machine arm and sewing machine head and by spring to a direction apply elastic force upper push-rod, be connected to connecting rod on this upper push-rod, can be rotated to support on the lining and axis of rocking that a part and connecting rod engage, be connected with the end of axis of rocking and be fixed with the presenting a theatrical performance as the last item on a programme of pressing plate, pressure bar at front end by pin; Described pressure bar have the spigot surface that comprises the usefulness of presenting a theatrical performance as the last item on a programme two strands of bars and with these two strands of spring members that bar engages; By this pressure bar the front end of presenting a theatrical performance as the last item on a programme is applied elastic force downwards and by pressing plate cloth pressed against on the loading end of sewing machine head around axis of rocking, it is characterized in that, removably carriage is set on the back side of sewing machine frame, on this carriage, fix above-mentioned lining.
Have, at the recess of two strands of bars recess is set, the pin that is slidingly matched in this recess forms the pin engaging and use groove, and preferably is provided with and the corresponding axis of rocking of carriage on presenting a theatrical performance as the last item on a programme.In addition, can make the crank sheet to the end of axis of rocking, the cardinal extremity that makes the crank sheet does not protrude to the left of the left surface of sewing machine arm, with the front end of crank sheet and present a theatrical performance as the last item on a programme and link.
According to the present invention, because removably carriage is set on the back side of sewing machine frame, stationary bushing on this carriage is so can easily change near the arc track of the pressing plate the sewing machine head loading end.In addition, when the depressed part at two strands of bars is provided with recess, pin is slidingly matched in this recess, on presenting a theatrical performance as the last item on a programme, have the groove of pin engaging usefulness, simultaneously, when corresponding with it axis of rocking is set on carriage, the lower end of the pin in the recess that is slidingly fitted in two strands of bars is engaged with groove with the pin of presenting a theatrical performance as the last item on a programme engage.
Description of drawings
Fig. 1 is the exploded perspective view of the cloth-pressing device of Sewing machines of the present invention.
Fig. 2 is the rearview that has the Sewing machines of this device.
Fig. 3 is the left side view that has the Sewing machines of this device.
Fig. 4 is the profile of major part of the pressure bar of this device of expression.
Fig. 5 is the stagger stereogram of another carriage of a bit forming of the fixed position of lining.
Fig. 6 represents the stereogram of the form of a carriage again.
Fig. 7 is the carriage of presentation graphs 5 and the stereogram of the axis of rocking corresponding with it.
The specific embodiment
Use the description of drawings embodiments of the invention below.The cloth-pressing device of Sewing machines has upper push-rod 1, connecting rod 2, axis of rocking 3, present a theatrical performance as the last item on a programme 4 and pressure bar 5.Upper push-rod 1 has connecting rod that the hole 1a of usefulness is installed, and the base end part of this bar 1 rotatably is supported on the back side of frame M with ladder screw 6.Spring 7 is installed on the ladder screw 6 with upper push-rod 1.One end fastening of spring 7 is on sewing machine frame M, and other end fastening is on the bottom of upper push-rod 1, and connecting rod 2 is made up of hook 8 and transverse arm 9, and hook 8 is installed in the hole 1a of upper push-rod 1.On transverse arm 9, form claw 9a and perforating 9b.
In the 9b of the hole of transverse arm 9, axis of rocking 3 is installed rotatably.Axis of rocking 3 rotatably is supported in the lining 10, and lining 10 is fixed on the carriage 11.Carriage 11 usefulness screws 12 are installed on the back side of sewing machine frame M, and promptly carriage 11 can load and unload with respect to sewing machine frame M, and another carriage 28 (with reference to Fig. 5) that also can form with being staggered in the fixed position of lining 10 replaces.In addition, fixed crank sheet 3a on an end of axis of rocking 3 installs the axle collar 13 with screw 14 on the other end.Mounting spring 15 on lining 10.One end fastening of spring 15 is on sewing machine frame M.Other end fastening is on the bottom of transverse arm 9.Because the effect of spring 7,15, upper push-rod 1 is by to a direction pushing, and recuperability is imposed on the upper push-rod 1 that is rotated by pedal etc.Have, when rotating the upper push-rod 1 that is rotated by pedal etc. with pedal etc., the claw 9a of transverse arm 9 and the 13a of fastening portion of the axle collar 13 on being fixed on axis of rocking 3 are that the part of axis of rocking 3 engages again, and axis of rocking 3 rotates around the axle center.
On the crank sheet 3a of axis of rocking 3, use holding screw 17 fixator pins 16.Present a theatrical performance as the last item on a programme and 4 rotatably be connected on the crank sheet 3a of axis of rocking 3 by pin 16.The left that the cardinal extremity of crank sheet 3a is made into not to the left surface ML of sewing machine arm A protrudes.Thus, guaranteed that on the loading end BS of sewing machine head B work-saving device uses the space.On 4 the front end of presenting a theatrical performance as the last item on a programme with screw 4c fixation clip 4a.Degree of tightness by screw 4c can change pressing plate 4a with respect to presenting a theatrical performance as the last item on a programme 4 fixed position.Pressure bar 5 is configured on 4 the centre position of presenting a theatrical performance as the last item on a programme.Pressure bar 5 is arranged in the cylindrical shell 18 that connects sewing machine arm A, has 19 and two strands of bars 20 of coil spring (elastic component).Coil spring 19 inserts in the cylindrical shell 18.Two strands of bars 20 are made hollow, in the lower end of this bar 20 depressed part 20a are arranged.The depressed part 20a of two strands of bars 20 have guiding present a theatrical performance as the last item on a programme 4 about the spigot surface of face.
Use the snap-latch piece 21 of engagement device 22 fixed coil springs 19 usefulness at the hollow bulb of two strands of bars 20.The lower end of this bonding pad 21 is positioned at the depths, the inside of the depressed part 20a of two strands of bars 20, and this space forms the recess 20aa of two strands of bars 20.Pin 23 is being slidingly matched on the recess 20aa of two strands of bars 20.In addition, present a theatrical performance as the last item on a programme 4 above have groove 4b, the lower end of pin 23 engages with 4 the groove 4b of presenting a theatrical performance as the last item on a programme.Thus, from the pushing of pin 23 it is come off from 4 the groove 4b of presenting a theatrical performance as the last item on a programme.Have, hand lever 25 is installed on the sewing machine arm A by ladder screw 26 again.By the rotating operation of hand lever 25, the claw 25a of hand lever 25 is engaged with the engagement device 22 of two strands of bars 20, remove present a theatrical performance as the last item on a programme 4 the pushing of two strands of 20 pairs on bars.
Have again, face about the leading section of pin 23 is carried out chamfering, the part 23a of this chamfering is engaged with the spigot surface of the depressed part 20a that forms two bursts of bar lower ends.That is,, make the interval of spigot surface of recess 20a narrower than the internal diameter of recess 20a for two strands of bars 20.So, when being removed by hand lever 25 when presenting a theatrical performance as the last item on a programme 4 pushing, pin 23 can not come off from two strands of bars 20.Coil spring 19 is regulated with the rotary manipulation of regulating bolt 27 for the pushing force of two strands of bars 20.Pressure bar 5 makes 4 the front end of presenting a theatrical performance as the last item on a programme apply elastic force downwards around axis of rocking usually.Thus, the pressing plate 4a that is fixed on 4 the front end of presenting a theatrical performance as the last item on a programme presses against cloth on the loading end BS of sewing machine head B.
Change near the arc track of the pressing plate the sewing machine head loading end by replacing to stagger another carriage of a bit forming of the fixed position that makes lining in the present embodiment, but also be not limited to this, for example, as shown in Figure 6, also can be fixed on the carriage 29 usefulness screws 30 that formed slotted hole 29a on the sewing machine frame M.So, when the tightening up of lax screw 30, can be in slotted hole 29a the fixed position of movable support bracket, can change near the arc track of the pressing plate the head of sewing machine loading end.When replacing to carriage 28, as shown in Figure 7, the axis of rocking corresponding with carriage 28, the axis of rocking 32 that has promptly changed crank sheet 32a also is replaced together, and the lower end that can make the pin 23 in the recess that is slidingly fitted in two strands of bars 20 engages usefulness groove 4b combination with 4 the pin of presenting a theatrical performance as the last item on a programme.
As mentioned above, according to the present invention, owing to can easily change near the arc track of the pressing plate the head of sewing machine loading end, so even when making the kind cloth different with thickness, pressing plate can not become the obstacle that cloth is carried yet.In addition, engage with the pin of presenting a theatrical performance as the last item on a programme with the groove engaging owing to be slidingly fitted in the lower end of the interior pin of the recess of two strands of bars, so, when driving Sewing machines, the lower end of pin does not move forward and backward on presenting a theatrical performance as the last item on a programme, and the change of the pushing force of pressure bar is in the Min..Have again, owing to the pin lower end does not move forward and backward on presenting a theatrical performance as the last item on a programme, so can reduce the wearing and tearing of pin lower end.Have again,, use the space so can guarantee the work-saving device on the loading end of sewing machine head because the cardinal extremity that does not make the crank sheet protrudes to the left of the left surface of sewing machine arm.
Claims (3)
1. the cloth-pressing device of a Sewing machines has: can be rotated to support on the back side of the sewing machine frame that constitutes by sewing machine arm and sewing machine head and by spring to a direction apply elastic force upper push-rod, be connected to connecting rod on this upper push-rod, can be rotated to support on the lining and axis of rocking that a part and connecting rod engage, be connected with the end of axis of rocking and be fixed with the presenting a theatrical performance as the last item on a programme of pressing plate, pressure bar at front end by pin; Described pressure bar have the spigot surface that comprises the usefulness of presenting a theatrical performance as the last item on a programme two strands of bars and with these two strands of spring members that bar engages; By this pressure bar the front end of presenting a theatrical performance as the last item on a programme is applied elastic force downwards and by pressing plate cloth pressed against on the loading end of sewing machine head around axis of rocking, it is characterized in that, removably carriage is set on the back side of sewing machine frame, on this carriage, fix above-mentioned lining.
2. the cloth-pressing device of Sewing machines as claimed in claim 1, it is characterized in that, recess at two strands of bars is provided with recess, pin is slidingly matched in this recess, on presenting a theatrical performance as the last item on a programme, form the groove of pin engaging usefulness, and the axis of rocking that setting is corresponding with carriage makes the lower end of pin in the recess that is slidingly fitted in two strands of bars engage with groove with the pin of presenting a theatrical performance as the last item on a programme and engages.
3. the cloth-pressing device of Sewing machines as claimed in claim 1 is characterized in that, the crank sheet is made in the end of axis of rocking, the cardinal extremity that makes the crank sheet not to the left of sewing machine arm left surface to protrusion, link with presenting a theatrical performance as the last item on a programme with the front end of crank sheet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP327944/2002 | 2002-11-12 | ||
| JP2002327944A JP4009522B2 (en) | 2002-11-12 | 2002-11-12 | Sewing machine presser equipment |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101047793A Division CN100404746C (en) | 2002-11-12 | 2002-12-26 | Cloth press device of sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1499004A CN1499004A (en) | 2004-05-26 |
| CN100425757C true CN100425757C (en) | 2008-10-15 |
Family
ID=32806388
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101047793A Expired - Lifetime CN100404746C (en) | 2002-11-12 | 2002-12-26 | Cloth press device of sewing machine |
| CNB021593353A Expired - Lifetime CN100425757C (en) | 2002-11-12 | 2002-12-26 | Fabric presser of sewing machine |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101047793A Expired - Lifetime CN100404746C (en) | 2002-11-12 | 2002-12-26 | Cloth press device of sewing machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4009522B2 (en) |
| KR (1) | KR20040042818A (en) |
| CN (2) | CN100404746C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4473671B2 (en) * | 2004-07-30 | 2010-06-02 | ペガサスミシン製造株式会社 | Sewing machine presser equipment |
| JP4716170B2 (en) * | 2005-04-27 | 2011-07-06 | ブラザー工業株式会社 | Sewing machine presser foot |
| CN101929041B (en) * | 2009-06-25 | 2012-12-12 | 中国标准缝纫机公司上海惠工缝纫机三厂 | Presser foot height adjusting mechanism for sewing machine |
| CN102086570B (en) * | 2009-12-03 | 2012-11-28 | 上海贵衣缝纫设备有限公司 | Internal pressing plate device for automatic pocket facing machine |
| CN105734843A (en) * | 2016-05-09 | 2016-07-06 | 拓卡奔马机电科技有限公司 | Presser foot adjusting mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4024826A (en) * | 1975-08-22 | 1977-05-24 | Blue Bell, Inc. | Tension attachment for sewing machines |
| US4594958A (en) * | 1985-01-31 | 1986-06-17 | Tokyo Juki Industrial Co. Ltd | Presser foot lift device for a top feed sewing machine |
| CN1177656A (en) * | 1996-09-26 | 1998-04-01 | 胜家公司 | Presser device for sewing machine |
| JP2000308777A (en) * | 1999-04-28 | 2000-11-07 | Brother Ind Ltd | Hold-down foot lifter for sewing machine |
| US20020157585A1 (en) * | 2001-04-17 | 2002-10-31 | Choi Hin Fai | Overlock sewing machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0616604Y2 (en) * | 1988-04-01 | 1994-05-02 | ペガサスミシン製造株式会社 | Sewing machine presser device |
| US5493979A (en) * | 1994-05-03 | 1996-02-27 | Union Special Corporation | Independent guide system for upper roller feeder |
| TW363095B (en) * | 1997-05-09 | 1999-07-01 | Barudan Co Ltd | Suppresser of sewing machine |
| DE19906106C1 (en) * | 1999-02-13 | 2000-07-13 | Duerkopp Adler Ag | Mounting for needle/presser foot shaft bearing bushes is a drilling in the housing with parallel side drillings cutting into it to take cylinder pins pressed radially against the bearing bush by a screw bolt clamp |
-
2002
- 2002-11-12 JP JP2002327944A patent/JP4009522B2/en not_active Expired - Fee Related
- 2002-12-26 CN CNB2003101047793A patent/CN100404746C/en not_active Expired - Lifetime
- 2002-12-26 CN CNB021593353A patent/CN100425757C/en not_active Expired - Lifetime
-
2003
- 2003-10-24 KR KR1020030074591A patent/KR20040042818A/en not_active Application Discontinuation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4024826A (en) * | 1975-08-22 | 1977-05-24 | Blue Bell, Inc. | Tension attachment for sewing machines |
| US4594958A (en) * | 1985-01-31 | 1986-06-17 | Tokyo Juki Industrial Co. Ltd | Presser foot lift device for a top feed sewing machine |
| CN1177656A (en) * | 1996-09-26 | 1998-04-01 | 胜家公司 | Presser device for sewing machine |
| JP2000308777A (en) * | 1999-04-28 | 2000-11-07 | Brother Ind Ltd | Hold-down foot lifter for sewing machine |
| US20020157585A1 (en) * | 2001-04-17 | 2002-10-31 | Choi Hin Fai | Overlock sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1511991A (en) | 2004-07-14 |
| CN100404746C (en) | 2008-07-23 |
| JP4009522B2 (en) | 2007-11-14 |
| JP2004159819A (en) | 2004-06-10 |
| CN1499004A (en) | 2004-05-26 |
| KR20040042818A (en) | 2004-05-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081015 |