CN101429710B - Sewing machine - Google Patents
Sewing machine Download PDFInfo
- Publication number
- CN101429710B CN101429710B CN2008101741443A CN200810174144A CN101429710B CN 101429710 B CN101429710 B CN 101429710B CN 2008101741443 A CN2008101741443 A CN 2008101741443A CN 200810174144 A CN200810174144 A CN 200810174144A CN 101429710 B CN101429710 B CN 101429710B
- Authority
- CN
- China
- Prior art keywords
- sewing machines
- control agent
- radius
- shell
- wall
- 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.)
- Active
Links
- 238000009958 sewing Methods 0.000 title claims abstract description 29
- 230000036316 preload Effects 0.000 claims description 34
- 230000001105 regulatory effect Effects 0.000 claims description 28
- 239000004744 fabric Substances 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 description 22
- 210000002683 foot Anatomy 0.000 description 22
- 238000000034 method Methods 0.000 description 3
- 238000010417 needlework Methods 0.000 description 2
- 230000002730 additional effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/02—Presser-control devices
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention relates to a sewing machine comprising a housing (5), a supporting plate (9), a presser foot (10), which interact with the supporting plate for fixing of a work piece (7,8). A power source (16) is provided, which supports on the one hand at the housing (5) and on the other hand at the presser foot, where the presser foot is linked against the supporting plate. An adjustment means 20 is provided which adjusting a preloading force applied on the presser foot by said power source. The adjustment means comprises an adjuster (21) mounted in the housing and pivoted around a pivoting axial line (23). The adjuster comprises an outerwall (24) through which the adjuster affects the preloading force based on the power source. In an adjustable angle region (25) around the pivoted axial line, the radius of the outerwall continuously and strict monotonously changes. Thus a sewing machine with more reliable and comfortable adjustment of the presser foot is obtained.
Description
Technical field
The present invention relates to a kind of Sewing machines, comprising:
-shell;
-supporting plate;
-cooperate to clamp the presser feet of fabric with supporting plate;
-force source, this force source are bearing on the shell on the one hand, are bearing on the other hand on the presser feet, make presser feet against supporting plate prestrain; With
-adjusting device is applied to the preload force on the presser feet to be used to regulate through said force source.
Background technology
Such Sewing machines is disclosed among DD-PS 53 542, DD-PS 35 150 and GB 2 068 027 A.Can know other Sewing machines through existing public use with adjustable presser feet preload force.
In known Sewing machines, the adjusting of presser feet preload force still need improve.Problem appears at the readable aspect of preload force of repeatability, preload force degree of regulation and the current setting of preload force especially.In addition, the adjusting of preload force is a large amount of energy of needs often, and Sewing machines that some are known even needs use extra instrument.
Summary of the invention
Therefore, one object of the present invention is to develop a kind of Sewing machines that starts said type, so that realize a kind of mode of more reliable and comfortable adjusting presser feet preload force.
According to the present invention, this purpose is passed through the described Sewing machines of a kind of beginning and is realized, wherein,
-adjusting device comprises and being installed in the shell so that can be around the control agent of a pivot axis;
-wherein, said control agent comprises an outer wall,
-via this outer wall, control agent is directly against force source, be used to influence preload force and
-in the adjusting angle scope of pivot axis, the radius of this outer wall is monotone variation between least radius and bigger maximum radius;
-wherein, force source is a slice spring, wherein
The first end part of-sheet spring is clamped with respect to shell locking,
The relative end sections of-sheet spring is against the end of the presser bar of presser feet, the foot part of this end and presser feet relative and
-between two end sections, the outer wall of control agent is directly against the sheet spring.
According to the present invention, have been found that the adjusting device that comprises control agent makes accurately to regulate preload force with short especially travel distance that wherein this control agent cooperates with force source with the generation preload force via the outer wall of the radius with variation.Radius is monotone variation on mathematical meaning.Radius monotone variation according to the present invention makes preload force can clearly be set each position to control agent.This has guaranteed the point-device adjusting to preload force.The variation of radius can be continuous or discontinuous.According to the present invention, radius the progressive of whole adjusting angle scope or even the variation of successively decreasing also be dull.The discontinuous variation of radius can for example comprise a plurality of discrete radius grades.The variation of radius between minimum and maximum radius be strictly monotone roughly.According to the feasible preload force indicator that readability can be set on the adjusting angle scope of embodiments of the invention, for example digital scale or line scale.According to of the present invention spring is power spring (force spring), and it has been proved to be and has been suitable for regulating the presser feet preload force.Because for influence the preload force control agent directly against force source-in other words do not need other intermediate member-this fact, this sensitivity adjusting for preload force provides condition.Between control agent and sheet spring, do not need other mechanism that causes additional effect power, thereby help the adjusting of preload force.
The basic in the adjusting angle scope of control agent is that spiral helicine outer wall makes preload force to be regulated continuously.Helical form can increase the preload force that must on the adjusting angle scope, produce gradually.
Be arranged on that the shell outside is gone up and with the control agent mechanical connection be that the comfortable operation adjusting device provides condition with the regulating wheel that is used to control agent is pivoted.Regulating wheel can be provided with above-mentioned scale, and this scale matches to indicate the preload force of current setting with mark on the shell.
Be used for the lock cell that regulating wheel is locked at least two pivoting angle latched positions with respect to shell can be made preload force be configured to be easy to reproduce and can unexpectedly not change.The locking device that need not be not easy to use, for example counter nut.
The lock cell that is designed to latch lock unit has been guaranteed comfortable especially operation, and this latch lock unit has the breech lock body of the prestrain that cooperates with one of at least two latch locking groove at position latching.Latch lock unit makes and can set different acquiescence preload force values through click.According to the design of latch lock unit, can the breech lock body be installed in the shell and latch locking groove is arranged in the regulating wheel, perhaps can the breech lock body be installed in the regulating wheel and latch locking groove is arranged in the shell.
Greater than 180 ° or equal 270 ° adjusting angle scope and guarantee fine adjustments to preload force.
The radius of outer wall has been guaranteed the coverage rate of the power between minimum and maximum preload force, and this is adapted to the operational requirements of Sewing machines well, the radius of this foreign currency in the adjusting angle scope at least radius R
MinWith maximum radius R
MaxBetween change, make radius ratio R
Max/ R
Min>2.
Description of drawings
To embodiments of the invention be described in further detail by accompanying drawing below, in the accompanying drawings:
Fig. 1 illustrates the side view of the top part of Sewing machines;
Fig. 2 illustrates the schematically vertical longitudinal section according to the head zone of the Sewing machines of Fig. 1, and this figure only illustrates the parts that cooperate with the presser feet of Sewing machines; And
Fig. 3 illustrates along the section of the line III-III of Fig. 1.
The specific embodiment
The top part and a segment base plate of Sewing machines 1 only are shown among Fig. 1, and this Sewing machines 1 comprises that column 2 and along continuous straight runs extend to the arm 3 of column 2 at a certain angle.Arm 3 ends in the head 4.Column 2, arm 3, head 4 and substrate are by shell 5 encapsulation of Sewing machines 1.One arm axle that do not illustrate in the drawings is mounted for rotation in arm 3.In head 4, arm axle drives a same unshowned shank, and this shank is installed in the head 4 being used for and is shifted vertically via crank driving device.The pin that is attached to the shank lower end can move up and down along vertical axis 6 by means of crank driving device.Said pin comprises the pinprick that is used to guide needlework, and said needlework are supplied with by the bobbin (not shown), stacked two fabrics 7,8 each other is sewed together being used for.
When being sewed together through Sewing machines 1, fabric 7,8 is placed on (referring to Fig. 2) on the supporting plate 9.Supporting plate 9 has the pin hole (not shown).
Be provided with presser feet 10 to be used for clamping fabric 7,8 in the process of making.Presser feet 10 has the foot part 11 of exerting pressure from last direction fabric 7,8.Foot part 11 is fixed on the presser bar 13 through screw 12.Presser bar 13 is directed along the presser feet axis 15 that is parallel to shank axis 6 at the guiding sleeve that is arranged in head 4 14.
The force source 16 of constructing spring in blocks is used to provide pressure, can clamp fabric 7,8 in the process of making, to make presser feet 10.On the one hand, the end sections 16a of sheet spring 16 is bearing on the corresponding bearing (counterbearing) 17, and this correspondence bearing is installed to shell so that sheet spring 16 can pivot around pivot axis 18.On the other hand, the end sections 16b of sheet spring 16 is bearing on the upper end 19 freely of presser bar 13.Sheet spring 16 essentially horizontally extends in arm 3.
With zone that sheet spring 16 contacts in, the upper end 19 of presser bar 13 is configured as approximate hemispherical, thereby makes the sheet spring 16 can be with the mode confirmed against presser bar 13.
The prestress of 16 pairs of presser feets 10 of sheet spring is regulated (with reference to figure 3) through adjusting device 20.Adjusting device 20 has control agent 21, and this control agent 21 is installed in the shell 5 so that can or pivot around the regulating shaft that limits a pivot axis 23 22 rotations, and control agent 21 is connected to this regulating shaft 22 so that common rotation.Control agent 21 has the outer wall 24 that limits an adjustment curve.In order to influence preload force, control agent 21-strictness be its outer wall 24-from the top between two end sections 16a of sheet spring, 16b against sheet spring 16, like Fig. 2 and 3 visible.
Measure from pivot axis 23, the radius R of outer wall 24 around pivot axis 23 in adjusting angle scope 25 continuously and strictly monotone ground change.In the embodiment shown in Fig. 2 and 3, this takes place by spirality.
Adjusting angle scope 25 covers about 270 °.According to the design of control agent 21, also can imagine other adjusting angle scope, particularly greater than 180 ° angular range.When the outer wall of control agent was helical form, for example, the adjusting angle scope also can be greater than 360 °.
In adjusting angle scope 25, the radius R of outer wall 24 is at least radius R
MinWith maximum radius R
MaxBetween change.In said embodiment, ratio R
Max/ R
MinBe about 3.According to each embodiment, also it is contemplated that other ratio R
Max/ R
Min, particularly greater than 2 ratio.
Utilize regulating wheel 26 to activate control agent 21 from housing exterior.Regulating wheel 26 is mechanically connected to control agent 21, to be used to that control agent 21 is pivoted around pivot axis 22.In the embodiment according to Fig. 3, regulating wheel 26 is through being screwed to regulating shaft 22 with regulating shaft 22 axially extending central screws 27.Lock cell 28 makes regulating wheel 26 to be locked in a plurality of pivoting angle latched positions with respect to shell 5.Lock cell 28 has the breech lock body 29 of structure balling-up.In Fig. 3, breech lock body 29 is forced on the right side by the disc spring 30 that is bearing on blind hole 31 bottoms.Breech lock body 29 is owing to the maintenance sleeve pipe 32 that is installed in the blind hole 32 is prevented from from blind hole 31, dropping out.
At the position latching of lock cell shown in Figure 3 28, breech lock body 29 cooperates with latch locking groove 33 in the regulating wheel 26, this latch locking groove 33 and 29 complementations of breech lock body.Look from the circumferential direction around pivot axis 23, regulating wheel 26 has a plurality of this latch locking groove 33, and they are equally spaced to spread all over adjusting angle scope 25.Regulating wheel 26 can for example be provided with two, three, four, five or dozens of, for example 50, this latch locking groove 33.
The preload force of presser feet 10 is regulated by following mode through adjusting device 20: the operator in form, search the kind that depends on the fabric 7,8 that will be sewed together that will set and the preload force of thickness.This preload force is for example composed with numerical value/label, and this numerical value also is arranged on the regulating wheel 26-strictness, is arranged in the zone of oriented manipulation person one side of each latch locking groove 33.Then, the operator rotates regulating wheel 26, and the aignment mark 34 (with reference to figure 1) that on this numerical value and shell 5, is provided with near regulating wheel 26 is relative.During this period, the operator notices the passing through independent click of regulating wheel 26 and by the middle position latching of perception, wherein each latch locking groove 33 is gone into or gone out to breech lock body 29 breech locks.During the preload force that will set when reaching, breech lock body 29 engages position latching 1 shown in Figure 3, makes regulating wheel 26 be locked in the precalculated position.In this precalculated position, outer wall 24 be usually located at R
MinAnd R
MaxBetween predetermined radii against sheet spring 16; And make sheet spring 16 crooked predetermined extents; Thereby 16 prestrains of sheet spring are become the preload force that will set corresponding to institute, make in the process of making presser bar 13 with so the foot part 11 of presser feet 10 apply the pressure corresponding to fabric 7,8 with the preload force of current setting.
Claims (8)
1. Sewing machines comprises
-shell (5);
-supporting plate (9);
-cooperate to clamp the presser feet (10) of fabric (7,8) with supporting plate (9);
-force source (16), this force source are bearing on the shell (5) on the one hand, are bearing on the other hand on the presser feet (10), make presser feet (10) against supporting plate (9) by prestrain; With
-adjusting device (20), this adjusting device are used for adjusting and are applied to the preload force on the presser feet (10) through said force source (16),
Wherein,
-adjusting device (20) comprises control agent (21), and this control agent is installed in the shell (5) so that can pivot around a pivot axis (23);
-wherein, said control agent (21) comprises an outer wall (24),
-via this outer wall, control agent (21) is directly against force source (16), be used to influence preload force and
-in the adjusting angle scope (25) of pivot axis (23), the radius of this outer wall (R) is monotone variation between least radius and bigger maximum radius;
-wherein, force source is a slice spring (16), wherein
The first end of-sheet spring (16) part (16a) is clamped with respect to shell (5) locking,
The second end of-sheet spring part (16b) is against the end of the presser bar (13) of presser feet (10), the foot part (11) of the end of this presser bar and presser feet (10) relative and
-these two end sections (16a, 16b) between, the outer wall (24) of control agent (21) is directly against sheet spring (16).
2. Sewing machines according to claim 1 is characterized in that, the outer wall (24) of said control agent (21) is a helical form in adjusting angle scope (25) basically.
3. Sewing machines according to claim 1 is characterized in that, this Sewing machines comprises the regulating wheel (26) on the outside that is arranged on shell (5), and this regulating wheel (26) and control agent (21) mechanical connection are to be used to that control agent (21) is pivoted.
4. Sewing machines according to claim 3 is characterized in that, this Sewing machines comprises at least one lock cell (28), and this lock cell is used for regulating wheel (26) is locked at least two pivoting angle latched positions with respect to shell (5).
5. Sewing machines according to claim 4 is characterized in that, said lock cell (28) is a latch lock unit, and it has the breech lock body (29) of the prestrain that in position latching, cooperates with one of at least two latch locking groove (33).
6. Sewing machines according to claim 1 is characterized in that the adjusting angle scope is greater than 180 °.
7. Sewing machines according to claim 6 is characterized in that, the adjusting angle scope is 270 °.
8. Sewing machines according to claim 1 is characterized in that, in adjusting angle scope (25), the radius (R) of said outer wall (24) is at least radius (R
Min) and maximum radius (R
Max) between change R wherein
Max/ R
Min＞2.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007052876A DE102007052876A1 (en) | 2007-11-07 | 2007-11-07 | sewing machine |
| DE102007052876.2 | 2007-11-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101429710A CN101429710A (en) | 2009-05-13 |
| CN101429710B true CN101429710B (en) | 2012-11-21 |
Family
ID=40379022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101741443A Active CN101429710B (en) | 2007-11-07 | 2008-11-07 | Sewing machine |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2058426B1 (en) |
| JP (1) | JP5346556B2 (en) |
| KR (1) | KR101468744B1 (en) |
| CN (1) | CN101429710B (en) |
| DE (2) | DE102007052876A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018206088A1 (en) * | 2018-04-20 | 2019-10-24 | Dürkopp Adler AG | sewing machine |
| CN109537184A (en) * | 2019-01-14 | 2019-03-29 | 杰克缝纫机股份有限公司 | A kind of sewing machine and its presser feet regulator |
| DE102019133956B4 (en) * | 2019-12-11 | 2022-12-29 | Lisa Dräxlmaier GmbH | SEWING MACHINE WITH A SPACER, AND USE OF A SPACER IN A SEWING MACHINE |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2068027A (en) * | 1980-01-25 | 1981-08-05 | Rossendale Sewing Machine Co L | Top spring for sewing machine foot bar |
| CN1204709A (en) * | 1997-07-05 | 1999-01-13 | 杜尔科普阿德乐股份有限公司 | Actuating device for presser foot of sewing machine |
| CN1331357A (en) * | 2000-06-23 | 2002-01-16 | 威陛马科股份公司 | Press device for controlling fabric presser bar on stitching machine |
| CN2646176Y (en) * | 2003-11-04 | 2004-10-06 | 东莞市寮步恒昌机械厂 | Presser plate regulating mechanism of computerised spininess quilter |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD35150A (en) | ||||
| DE53542C (en) * | L. A. ELSTER, Arzt, und E. YOUNG, Beide in Jeff er sonville, sowie J. E. KNAPP in West - Lancaster, Ohio, V. St. A | Screw locking by means of a wrench clamped between two nuts | ||
| DD53542A (en) | ||||
| DE35150C (en) * | J. SCHERBEL und T. REMUS in Dresden | Production of toothed corner strips for the edge connection of cardboard boxes | ||
| US1279112A (en) * | 1914-10-10 | 1918-09-17 | Singer Mfg Co | Presser mechanism for sewing-machines. |
| DE309985C (en) * | 1917-03-07 | |||
| GB347854A (en) * | 1930-04-09 | 1931-05-07 | Singer Mfg Co | Improvements in or relating to work-holders for sewing machines |
| US2541888A (en) * | 1948-04-05 | 1951-02-13 | Singer Mfg Co | Speed-responsive presser device for sewing machines |
| DE873487C (en) * | 1951-02-07 | 1953-04-13 | Kochs Adler Ag | Fabric printing device with moving and ventilating presser foot |
| GB1059057A (en) * | 1964-10-15 | 1967-02-15 | Singer Co | Unitary presser bar spring regulating devices |
| JPS446856Y1 (en) * | 1966-04-11 | 1969-03-13 | ||
| US3793969A (en) * | 1972-10-03 | 1974-02-26 | Singer Co | Presser bar pressure control modules |
| GB1488364A (en) * | 1974-10-02 | 1977-10-12 | Singer Co | Presser device for overedge sewing machine |
| JP2762437B2 (en) * | 1987-06-27 | 1998-06-04 | アイシン精機株式会社 | Sewing machine lifting device |
| JP2002525185A (en) * | 1998-09-26 | 2002-08-13 | クイック ロタン エレクトロモトーレン ゲーエムベーハー | Operation device |
-
2007
- 2007-11-07 DE DE102007052876A patent/DE102007052876A1/en not_active Withdrawn
-
2008
- 2008-10-25 EP EP08018718A patent/EP2058426B1/en active Active
- 2008-10-25 DE DE502008002121T patent/DE502008002121D1/en active Active
- 2008-11-05 JP JP2008284272A patent/JP5346556B2/en not_active Expired - Fee Related
- 2008-11-06 KR KR1020080110033A patent/KR101468744B1/en active IP Right Grant
- 2008-11-07 CN CN2008101741443A patent/CN101429710B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2068027A (en) * | 1980-01-25 | 1981-08-05 | Rossendale Sewing Machine Co L | Top spring for sewing machine foot bar |
| CN1204709A (en) * | 1997-07-05 | 1999-01-13 | 杜尔科普阿德乐股份有限公司 | Actuating device for presser foot of sewing machine |
| CN1331357A (en) * | 2000-06-23 | 2002-01-16 | 威陛马科股份公司 | Press device for controlling fabric presser bar on stitching machine |
| CN2646176Y (en) * | 2003-11-04 | 2004-10-06 | 东莞市寮步恒昌机械厂 | Presser plate regulating mechanism of computerised spininess quilter |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102007052876A8 (en) | 2009-08-27 |
| EP2058426B1 (en) | 2010-12-29 |
| DE102007052876A1 (en) | 2009-05-20 |
| EP2058426A1 (en) | 2009-05-13 |
| DE502008002121D1 (en) | 2011-02-10 |
| CN101429710A (en) | 2009-05-13 |
| KR101468744B1 (en) | 2014-12-03 |
| KR20090047374A (en) | 2009-05-12 |
| JP2009112819A (en) | 2009-05-28 |
| JP5346556B2 (en) | 2013-11-20 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210811 Address after: Bielefeld, Germany Patentee after: Durkep Adler Co.,Ltd. Address before: Bielefeld, Germany Patentee before: D rkopp Adler AG |
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Address after: Bielefeld, Germany Patentee after: Dukepu Aihua Co.,Ltd. Country or region after: Germany Address before: Bielefeld, Germany Patentee before: Durkep Adler Co.,Ltd. Country or region before: Germany |
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| CP03 | Change of name, title or address |