CN101514514B - Pressure adjustment structure of presser foot of sewing machine - Google Patents
Pressure adjustment structure of presser foot of sewing machine Download PDFInfo
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- CN101514514B CN101514514B CN 200810043137 CN200810043137A CN101514514B CN 101514514 B CN101514514 B CN 101514514B CN 200810043137 CN200810043137 CN 200810043137 CN 200810043137 A CN200810043137 A CN 200810043137A CN 101514514 B CN101514514 B CN 101514514B
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- body frame
- spare
- cantilever
- subframe
- rolled
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Abstract
The invention discloses a pressure adjustment structure of a presser foot of a sewing machine, wherein a cantilever end of the sewing machine is provided with a pressure bar with the presser foot, the pressure bar is provided with an elastic element, the cantilever end part is additionally provided with a main frame part for a pressing part to be matched with the arrangement of a pressing body and a guiding element, the pressing part can slide on the main frame part, one end of the pressing part extends to the elastic element, and the pressing body extends to a pressure regulation part on the main frame part and is driven by the pressure regulation part; through the rotation of the pressure regulation part, the pressing body drives the pressing part to slide on the main frame part and presses the elastic element to produce different pressures; and the main frame part is additionally provided with a sub-frame part, and the main frame part and the sub-frame part are combined with a cantilever at the same time to ensure that the whole sewing machine becomes a high-strength structure.
Description
Technical field
The present invention relates to a kind of sewing machine component, be specifically related to a kind of pressure adjustment structure of presser foot of sewing machine.
Background technology
The pressure adjustment structure of the cloth pressing foot of Sewing machines commonly used, on the depression bar that its cloth pressing foot connects, be provided with in addition elastic construction, and this elastic construction system is by regulating wheel top system one connecting rod of a cam form, the structure of this connecting rod complexity very, as shown in Figure 5, wherein, a depression bar 91 is established at these cloth pressing foot 90 tops, be arranged with a flexible member 92 on the depression bar 91, be suppressed with in addition a pad 93 at these flexible member 92 tops, the side pressure system that this pad 93 is a connecting rod 94 drives, and this connecting rod 94 is to form with the bending of a slice body structure, and the middle section gives pivot with a pivot 95 and closes, and this pivot 95 to be pivot be fixed in place, sewing machine arm end, the another end of connecting rod 94 is that regulating wheel 96 cams that are hubbed on the cantilever end partly hold, and by the rotation of this regulating wheel 96, makes this connecting rod 94 deflection one angle centered by pivot 95, suppress simultaneously in the end place of pad 93 with flexible member 92 and press down, make flexible member 92 compressions produce certain pre-power, so structure is real has following shortcoming, comprising:
1, this connecting rod 94 and pivot 95 that complexity is set is high, stability is limited: namely this connecting rod 94 is to be formed by the bending of sheet body structure, and bending degree changes greatly, making is difficult for, and needs in addition to cooperate pivot 95 to be located, and installs difficult, and the destruction situation that very easily causes stress to concentrate, stability is not high.
2, indirectly suppressing strength control is difficult for: be by the pivot pressed pad 93 of connecting rod 94 centered by pivot 95, the situation that it has the arm of force to differ to cause the control of compacting strength to be difficult for, indirectly suppress, often the deficiency because of connecting rod 94 deflections has the state of pressure transient to produce.
3, overall construction intensity is not enough: this regulating wheel 96 is that pivot is fixed on the laminal support body in one of cantilever end, its fixing simple hole fitted bolt that relies on the support body periphery is fixed on the cantilever, bracing force is limited, and regulating wheel 96 is when adjusting, often have the pressure on the different directions to produce, cause the distortion of this support body, structural strength is not enough, more affect the position at these regulating wheel 96 places, indirectly make the pressure adjustment accuracy of flexible member 92 be subject to bad impact.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of pressure adjustment structure of presser foot of sewing machine, and it can make Sewing machines have a structure of directly regulating the depression bar elastic pressure.
For solving the problems of the technologies described above, the technical solution of pressure adjustment structure of presser foot of sewing machine of the present invention is:
By directly being slidingly equipped with a rolled-up stock on the body frame spare that is fixed in the cantilever end, and be provided with splenium and press body in this rolled-up stock system, with the flexible member on the cloth pressing foot depression bar respectively and be hubbed at pressure regulation part on the body frame spare and stretch and establish, make this rolled-up stock directly be driven and to press to flexible member by the pressure regulation part with the pre-power of the elasticity of adjusting this flexible member, and reach the purpose of direct adjustment and designs simplification.
Further, the body frame spare periphery of this sewing machine arm end is except with being combined in the cantilever end, in addition with the subframe spare combination on the vertical direction, and this subframe spare another end also is fixed on the perpendicular end surface of cantilever, the support force that makes body frame spare be at least two directions supports, to reach the purpose that improves this partial structurtes intensity.
The technique effect that the present invention can reach is:
The present invention makes the pressure of cloth pressing foot can be by direct and certain adjustment, and is combined with cantilever by two parts, and cantilever end partial structurtes intensity can effectively promote, to reach the required intensity of cantilever end construction.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
Fig. 1 is textural association schematic perspective view of the present invention;
Fig. 2 is the schematic perspective view at the first visual angle of the present invention;
Fig. 3 is perspective exploded view of the present invention;
Fig. 4 is combined planar schematic diagram of the present invention;
Fig. 5 is the structural representation of prior art.
Among the figure, 10 Sewing machiness, 11 cantilevers, 12 pressure regulation parts, 120 pressure-regulating portion, 13 depression bars, 130 cloth pressing foots, 14 support spring spare, 15 flexible members, 20 body frame spares, 21 solid holes, 22 pivot holes, 220 pivots, 23 lead section, and 24 decide the hole, 25,26 subframe fixed parts, 30 rolled-up stocks, 31 spleniums, 32 decide the hole, and 33 lead section, 40 press body, 400 end groove, and 41 place restrictions on part, 42 pads, 50 guiding elements, 500 end groove, and 51 place restrictions on part, 52 pads, 60 subframe spares, 61 joint portions, 62 body frame fixed parts, 90 cloth pressing foots, 91 depression bars, 92 flexible members, 93 pads, 94 connecting rods, 95 pivots, 96 regulating wheels.
The specific embodiment
As shown in Figure 1 to Figure 3, pressure adjustment structure of presser foot of sewing machine of the present invention, Sewing machines 10 has a cantilever 11, cantilever 11 external stabilities have housing, and its free end is provided with a pressure regulation part 12, this pressure regulation part 12 is provided with the pressure-regulating portion 120 of cam form with respect to the end face of cantilever 11, so that the spring spare 14 that supports on the depression bar 13 is carried out the adjustment of elastic pressure with flexible member 15, and depression bar 13 bottoms are pivoted with a cloth pressing foot 130 in addition, and principal character structure of the present invention ties up in this pressure regulation part 12 to flexible member 15 structural design.
Wherein, these cantilever 11 ends are provided with the body frame spare 20 of a sheet structural form, be slidingly equipped with a rolled-up stock 30 on the body frame spare 20, this rolled-up stock 30 is provided with the pressure-regulating portion 120 that a press body 40 is stretched to pressure regulation part 12, and the other end of rolled-up stock 30 stretches to flexible member 15,20 relative structures that are provided with guiding element 50 and cooperate with guiding element 50 of rolled-up stock 30 and body frame spare, make the action of slippage on body frame spare 20 that rolled-up stock 30 can be certain, and directly drive at once 30 pairs of flexible members 15 of rolled-up stock when rotating for pressure regulation part 12 and suppress the control precompression; Be provided with in addition a subframe spare 60 at body frame spare 20 vertical ends places in addition, so that the stability of body frame spare 20 is higher, become a high-intensity structure.
This body frame spare 20 is provided with two to three solid holes 21 of running through form in addition with respect to the periphery of cantilever 11, directly pass for bolt and to be fixed in cantilever 11 ends places, it is fixing for a pivot 220 that body frame spare 20 relative pressure regulation parts 12 centers are provided with a pivot hole 22 in addition, these pivot 220 free ends pass pressure regulation part 12 centers and anchor this pressure regulation part 12 of position with C, make it not break away from; And nearly pivot hole 22 places are provided with a section that leads 23 that is parallel to the major axis pore morphology of depression bar 13 directions, pass for press body 40, and body frame spare 20 near this lead that section 23 places are provided with a circular through hole form in addition decide hole 24 to be fixed guiding element 50, this body frame spare 20 vertically bends out two subframe fixed parts 25,26 in addition away from the place, end in solid hole 21, and this subframe fixed part 25,26 is provided with perforation to cooperate the fixing of subframe spare 60.
This rolled-up stock 30 is the structure that the bending of a slice body structure forms a shape of falling L, and wherein, this rolled-up stock 30 stretches out the splenium 31 of one one-tenth semilune opening form to flexible member 15, to rely on the top of depression bar 13 and direct pressing flexible member 15; And these rolled-up stock 30 another ends and body frame spare 20 parallel posting, and be provided with a circular hole form at relative press body 40 places decide hole 32, fix for press body 40 ends, the another end of press body 40 is passed the pressure-regulating portion 120 that pressure regulation part 12 is stretched in the section of leading 23, and compacting drives for it, and this rolled-up stock 30 passes guiding with respect to the microscler section 33 that leads that guiding element 50 places are provided with a parallel struts 13 directions in addition for guiding element 50.
And press body 40 is a columned structure, what one end of this press body 40 was fixed in rolled-up stock 30 decides hole 32, and end groove 400 what pass that the section of leading 23 places are provided with an annular groove form in addition, the part 41 of placing restrictions on for C shape button shape fastens, and be provided with in addition a pad 42 placing restrictions on part 41 and lead 23 in section, so that pad 42 clamps the form of body frame spare 20 really.
In addition guiding element 50 is the structure of a cylinder, and these guiding element 50 1 ends are fixed on the body frame spare 20, and ends groove 500 in what pass that the section of leading 33 places are provided with an annular groove form in addition, and cooperate the buckle-shaped attitude of C shape place restrictions on part 51 tie spacers 52 with certain rolled-up stock 30 that clamps.
Rotation by pressure regulation part 12, as shown in Figure 4, wherein, these pressure regulation part 12 pressure-regulating portion 120 are with press body 40 slippage on body frame spare 20 on this rolled-up stock 30 of different high level of compaction, this rolled-up stock 30 is by placing restrictions on part 41,51 tie spacers 42,52 on press body 40 and the guiding element 50, rolled-up stock 30 can stably be moved on body frame spare 20 and compacting flexible member 15, and be tied to form a form of directly suppressing, and reach really stable purpose.
This subframe spare 60 also is a sheet structure in addition, its front end place with respect to cantilever 11 is provided with several joint portions 61, and be provided with in addition body frame fixed part 62 with respect to subframe fixed part 25,26 places of body frame spare 20, this body frame fixed part 62 is tied to form a poroid structural form, is fixed into one for bolt screw lock combination or cooperation nut.
Overall structure can reach following structure function and purpose in fact, such as:
1, adjust pressure directly and really: directly pressure is reached on the flexible member 15 by pressure regulation part 12 with splenium 31 because this rolled-up stock 30 is press body 40 with both ends, and be parallel to depression bar 13 actions, the transmission of its pressure is directly stablized.
2, designs simplification: integrated pressure product 30 mating components are simplified and combination stable high, and need not too much unnecessary installation and Component composition can reach, and can relatively reduce the formality of cost and installation.
3, overall construction intensity is large: this body frame spare 20 cooperates cantilever 11 combination on different end faces by the subframe spare on the vertical direction 60, make the support force of body frame spare 20 have the above strength of two directions, and the structural strength that body frame spare 20 is cooperated becomes large, and stability is stronger.
Claims (7)
1. a pressure adjustment structure of presser foot of sewing machine is characterized in that: comprise
One Sewing machines has a cantilever, and cantilever free end is provided with a pressure regulation part and a depression bar, and described depression bar is provided with a flexible member, the depression bar one end cloth pressing foot that is pivoted;
Described cantilever end is provided with a body frame spare, and the end that a press body is arranged stretches to described pressure regulation part and for it compacting drive, and the other end of described press body then runs through described body frame spare and affixed with a rolled-up stock slippingly, and described body frame spare be provided with the lead section and the guiding element that mutually are slidingly matched relative to rolled-up stock; Described pressure regulation part is suppressed the slippage on body frame spare of described press body, and drives described rolled-up stock and suppress described flexible member.
2. pressure adjustment structure of presser foot of sewing machine according to claim 1, it is characterized in that: described rolled-up stock stretches out a splenium to flexible member; The rolled-up stock another end is parallel with body frame spare to be posted, and is provided with certain hole in relative press body, and rolled-up stock is provided with the described section that leads.
3. pressure adjustment structure of presser foot of sewing machine according to claim 1 is characterized in that: described press body one end is fixed in the rolled-up stock another end and passes body frame spare and be provided with one and end groove and cooperate one to place restrictions on part and fasten a pad and clamp body frame spare.
4. pressure adjustment structure of presser foot of sewing machine according to claim 1, it is characterized in that: described guiding element one end is fixed on the body frame spare, and be provided with the groove that ends of an annular groove form in passing the rolled-up stock end, and cooperate and place restrictions on part and locate a pad with certain rolled-up stock that clamps.
5. pressure adjustment structure of presser foot of sewing machine according to claim 1, it is characterized in that: place, described body frame spare end is provided with a subframe spare in addition, described subframe spare is provided with several joint portions with respect to the end that cantilever differs from body frame spare, subframe spare is provided with the body frame fixed part with respect to body frame spare, and described body frame spare, subframe spare are combined with bolt with cantilever system.
6. pressure adjustment structure of presser foot of sewing machine according to claim 5 is characterized in that: described body frame spare is provided with the subframe fixed part with subframe spare opposite position.
7. a pressure adjustment structure of presser foot of sewing machine is characterized in that: comprise
One Sewing machines has a cantilever, and cantilever free end is provided with a pressure regulation part and a depression bar, and described depression bar is provided with a flexible member, the depression bar one end cloth pressing foot that is pivoted;
Described cantilever end is provided with a body frame spare, and body frame spare is provided with the solid hole of number, described body frame spare be provided with subframe fixed part relative to subframe spare with respect to the cantilever place;
One subframe spare, described subframe spare is provided with several joint portions with respect to the end that cantilever differs from body frame spare, and subframe spare is provided with the body frame fixed part with respect to body frame spare;
Described body frame spare, subframe spare are combined with bolt with cantilever system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810043137 CN101514514B (en) | 2008-02-21 | 2008-02-21 | Pressure adjustment structure of presser foot of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810043137 CN101514514B (en) | 2008-02-21 | 2008-02-21 | Pressure adjustment structure of presser foot of sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101514514A CN101514514A (en) | 2009-08-26 |
| CN101514514B true CN101514514B (en) | 2013-02-06 |
Family
ID=41039124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810043137 Expired - Fee Related CN101514514B (en) | 2008-02-21 | 2008-02-21 | Pressure adjustment structure of presser foot of sewing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN101514514B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619030B (en) * | 2011-01-26 | 2013-09-25 | 曾贤长 | Regulation structure of swing arm and swing center for controlling stroke of sewing machine |
| CN102330292B (en) * | 2011-08-25 | 2013-02-06 | 中屹机械工业有限公司 | Intelligent cloth pressing device |
| CN104294486B (en) * | 2014-09-30 | 2017-01-11 | 浙江理工大学 | Device and method for detecting pressure of presser foot of sewing machine |
| CN104894758B (en) * | 2015-06-24 | 2017-04-19 | 杰克缝纫机股份有限公司 | Automatic sewing machine presser foot strength regulating and controlling device |
| CN111463163B (en) * | 2020-04-09 | 2021-03-26 | 深圳市东昕科技有限公司 | High-precision pressing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3055326A (en) * | 1960-11-08 | 1962-09-25 | Singer Mfg Co | Adjustable presser device for sewing machines |
| US3303804A (en) * | 1964-10-15 | 1967-02-14 | Singer Co | Unitary presser bar spring regulating devices |
-
2008
- 2008-02-21 CN CN 200810043137 patent/CN101514514B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3055326A (en) * | 1960-11-08 | 1962-09-25 | Singer Mfg Co | Adjustable presser device for sewing machines |
| US3303804A (en) * | 1964-10-15 | 1967-02-14 | Singer Co | Unitary presser bar spring regulating devices |
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| Publication number | Publication date |
|---|---|
| CN101514514A (en) | 2009-08-26 |
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Granted publication date: 20130206 |