CN1932116B - Pedal bar holding structure for sewing machine - Google Patents
Pedal bar holding structure for sewing machine Download PDFInfo
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- CN1932116B CN1932116B CN2006101272314A CN200610127231A CN1932116B CN 1932116 B CN1932116 B CN 1932116B CN 2006101272314 A CN2006101272314 A CN 2006101272314A CN 200610127231 A CN200610127231 A CN 200610127231A CN 1932116 B CN1932116 B CN 1932116B
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- presser bar
- horn frame
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- shank
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Abstract
To provide a presser bar holding structure of a sewing machine capable of excellently adjusting the position of the pressing part of a presser bar. This structure is provided with a needle bar (21), the presser bar (100) capable of holding the pressing part (120) which presses an object to be sewn on a needle plate (200), and a holder part (10m) attached to the machine body of the sewing machine for holding the presser bar (100). The holder part (10m) comprises a swing support part (300) for holding the intermediate part in the length direction of the presser bar (100) so as to swing the upper end part (100u) and the lower end part (100d) in the length direction of the presser bar (100), and a fixing part (400) for fixing the swung presser bar (100) to the holder part (10m) at the swung position.
Description
Technical field
The present invention relates to have the pedal bar holding structure of the Sewing machines of the presser bar that pressing part is kept, wherein this pressing part is pressed the object to be sewn such as cloth on the eedle presser from the top.
Background technology
In the past, as the pedal bar holding structure of Sewing machines, known had a following structure (patent documentation 1), that is, comprising: shank, its maintenance are inserted into the pin in the pin hole of needle plate and extend along the vertical direction; Presser bar, it can keep pressing part and extend along the vertical direction, and this pressing part has the pin faced mutually with the pin hole of needle plate and inserts the space and the object to be sewn on the needle plate is pushed; The horn frame, its maintenance is installed on the presser bar of Sewing machines fuselage.According to this device, shank and presser bar together combine with the horn frame.
The special fair 4-29400 communique of [patent documentation 1] JP
According to said apparatus,, the pin insertion space of the pressing part of presser bar is faced mutually with the pin hole of the needle plate of the support frame that is arranged at Sewing machines for the ease of making.At this moment, presser bar is shaken with respect to the horn frame of Sewing machines.At this moment, can produce along with presser bar is shaken, shank is interlock and the bad phenomenon of shaking to equidirectional with it also.When shank also shakes, need adjust the position of the pin of shank once more.So the operation of the position of the pressing part of adjustment presser bar is comparatively numerous and diverse.
Summary of the invention
The present invention In view of the foregoing carries out, and its problem is to provide a kind of pedal bar holding structure of Sewing machines of the pressing part position of being convenient to adjust presser bar.
The pedal bar holding structure of the Sewing machines that the present invention relates to comprises: shank, and it can keep being inserted into the pin in the pin hole of needle plate and extend along the vertical direction; Presser bar, it can keep pressing part and extend along the vertical direction, and this pressing part has the pin faced mutually with the pin hole of needle plate and inserts the space and the object to be sewn on the needle plate is pushed; The horn frame, it is installed in the body of Sewing machines and keeps presser bar and keep shank by the shank maintaining part, and the pedal bar holding structure of this Sewing machines is characterised in that,
The horn frame has: shaking bearing portion, and it can joltily keep the pars intermedia of presser bar length direction in the mode that the upper end and the bottom of the length direction of presser bar can be shaken; Fixed part, the presser bar after it will shake shake at it and are fixed in the horn frame on position.
According to the maintenance structure that the present invention relates to, as mentioned above, the horn frame has: with the mode that the upper end and the bottom of presser bar length direction can be shaken, the shaking bearing portion that can joltily keep the pars intermedia of presser bar length direction; Presser bar after shaking is being shaken the fixed part that is fixed in the horn frame on the position.Owing to be this structure, though presser bar and shank all are installed in the horn frame, shaking with shank of presser bar is separate, and shaking with shank of presser bar is separated from each other.Thereby, even face mutually with the pin hole of needle plate, and to operate when presser bar is shaken by adjusting for the pin of the pressing part that makes presser bar inserts the space, shaking also of shank can be suppressed.Thereby even shake presser bar by adjusting operation, this shakes also and can not be delivered on shank and the pin.
According to the present invention, owing to be said structure, though presser bar and shank all are installed in the horn frame, shaking with shank of presser bar is separate, and shaking with shank of presser bar is separated from each other.Thereby, even face mutually with the pin hole of needle plate, and shake presser bar for the pin of the pressing part that makes presser bar inserts the space, shaking also of shank can be suppressed.Thereby even shake presser bar, this shakes also and can not be delivered on shank and the pin.Therefore, the present invention unlike previous technologies, the defeasible adjustment of after having adjusted presser bar, the position of shank having been carried out again.According to the present invention, can provide a kind of pedal bar holding structure of Sewing machines of the pressing part position of being convenient to adjust presser bar.
Description of drawings
Fig. 1 is the front view of the internal structure of expression Sewing machines.
Fig. 2 is the vertical view of the horn frame of expression Sewing machines.
Fig. 3 is that the E of presentation graphs 1 is to the vertical view of looking, represent the support frame.
Fig. 4 is the sectional view along the IV-IV line of Fig. 1.
Fig. 5 amplifies near the partial section of bearing that presser bar can be joltily supported in expression.
Fig. 6 is the side view of the Sewing machines of expression internal structure.
Fig. 7 is the partial section along the VII-VII line of Fig. 1.
Fig. 8 is that the C of presentation graphs 1 is to the partial section of looking.
Fig. 9 is the partial section along the IX-IX line of Fig. 8.
The reference numeral explanation:
1 body, 10 horn framves, 11 support framves, 14,18 supports of bearing
14c, 18c are supported face 20 pins 21 shanks
Axle 4 lower shafts on the 23 shank connecting cylinders (shank maintaining part) 3
100d bottom, 5 balances, 100 presser bar 100u upper end
120 pressing parts, 121 pins insert space 122 and push the horn frame
130 presser bar saddles, 132 second holding sections, 140 springs
200 needle plates, 201 pin holes, 203 needle plates link screw
300 bearings (shaking maintaining part) 302 shake outside wall surface 400 fixed parts
401 movable carriage 408 rotation supporting parts 409 slotted holes, 411 first holding sections
413 first openings, 415 second openings, 417 element assemblies, 420 fixtures
The specific embodiment
The pedal bar holding structure of Sewing machines has: can keep being inserted into pin in the pin hole of needle plate and the shank that extends along the vertical direction; The presser bar that can keep pressing part and extend along the vertical direction, this pressing part have the pin faced mutually with the pin hole of needle plate and insert the space and the object to be sewn on the needle plate is pushed; Be installed in the horn frame of Sewing machines body and maintenance presser bar.The horn frame has: shaking bearing portion, and its mode of shaking with the upper end that can make the presser bar length direction and bottom can joltily keep the pars intermedia of presser bar length direction; Fixed part, it shakes on the position at this presser bar that shakes is fixed in the horn frame.Fixed part has at this and shakes the function that is fixed in the horn frame on the position.The shape and the structure of horn frame do not have particular determination.
The present invention can exemplify the following embodiment of representing with △.
△ shaking bearing portion is a bearing.In addition, have that the face that is supported that is formed on the horn frame can joltily support and the cross section forms the outside wall surface of shaking of circular arc convex.Here, the outside wall surface of shaking of shaking bearing portion forms the spherical convex surface that is 3D shape, and the face that is supported of horn frame forms the spherical concave surface that is 3D shape that shakes outside wall surface that can joltily support shaking bearing portion.Owing to adopted the spherical convex surface that is 3D shape, therefore be convenient to presser bar and shake.
The △ fixed part has: movable carriage, it is arranged in the presser bar than shaking bearing portion more at last position, and follow shaking of presser bar and relatively the horn frame shake; Fixture, its movable carriage that will shake is fixed in the horn frame.At this moment, movable carriage and fixture are parts separated from each other.Movable carriage can form cantilever-shaped.As long as fixture has the function that movable carriage is fixed in the horn frame, generally exemplified screw component.At this moment, the side in movable carriage and the horn frame has the slotted hole that extends on the direction that presser bar is shaken.And fixture is inserted in the slotted hole of movable carriage in the mode that movable carriage can be fixed in the horn frame.At this moment, movable carriage can shake along the length direction of slotted hole.
△ horn frame has first opening, and movable carriage has in first opening that is inserted into the horn frame and first holding section that can engage with first opening.And,, can carry out the braking of movable carriage by the engaging of first opening and first holding section.Along relative presser bar shake the vertical direction of direction, movable the mobile of carriage is prevented from.Therefore, except that the shaking and to be prevented from the direction of shaking of the regulation of presser bar.
△ is provided with the presser bar saddle of installing with the presser bar one, and the horn frame is provided with second opening.And the presser bar saddle has second opening that is inserted in the horn frame and second holding section that can engage with second opening, by engaging of second opening and second holding section, can carry out the braking of presser bar saddle.At this moment, the shaking the direction of shaking except that the regulation of presser bar is further prevented from.
△ is made as L1 with the pressing part of presser bar and the distance of shaking bearing portion (bearing), and when the distance of the upper end of presser bar and shaking bearing portion (bearing) was L2, L2 was set to the (L2＞L1) greater than L1.Thus, than the displacement of pressing part (bottom of presser bar), the displacement that shakes of the upper end of presser bar is increased.At this moment, if shake the upper end of presser bar, then help the displacement of pressing part (bottom of presser bar) is finely tuned.
Ratio in the △ fixture fixing presser foot bar shakes the central authorities of the length between the upper end of support sector and presser bar more by the upper end side.At this moment and since increased fixture by the moment due to the binding strength, so, help making the fixed-site of shaking that is fixed in the required presser bar that shakes the position.
[embodiment]
Below, with reference to figure 1～Fig. 9 embodiments of the invention are described.As shown in Figure 1, the body 1 of the main element of Sewing machines is coated by housing 1a, and has horn frame 10 and support frame 11.Horn frame 10 and support frame 11 are not foundry goods, but are that main body forms with the forming sheet metal body that the metallic plate with specific thickness is carried out drawing.As shown in Figure 1, on horn frame 10, liftably be provided with the shank 21 that can keep pin 20, and be provided with the upward axle 3 of along continuous straight runs rotationally.At this, shank 21 is connected with last axle 3 by movement conversion mechanism 22.When last axle 3 rotates around in its axle center, by movement conversion mechanism 22, shank 21 with pin 20 in arrow Y1, the lifting of Y2 direction.
As shown in Figure 1, last axle 3 is kept rotationally by the clutch shaft bearing 7 and second bearing 8 that is formed by elastomer.The clutch shaft bearing 7 and second bearing 8, on the axial length direction of last axle 3, the space predetermined distance fixes in horn frame 10.The clutch shaft bearing 7 and second bearing 8, the quilt of the horn frame 10 of body 1 with regard to plane 17 on, fixed removably by the first retaining element 74f and the second retaining element 74s.As shown in Figure 1, lower shaft 4 is maintained at the inside of support frame 11.Lower shaft 4 is by clutch shaft bearing 7B and capacity eccentric bearing 6 rotatably supports.Clutch shaft bearing 7B and capacity eccentric bearing 6 space predetermined distance on the axial length direction of lower shaft 4 fixes in support frame 11.As shown in Figure 2, horn frame 10 is provided with balance 5, balance support 50 and balance back shaft 51.Further, as shown in Figure 3, on the support frame 11 of body 1, link screw 203 by needle plate the needle plate 200 with pin hole 201 is installed.In addition, the feed dog 9 that is used to transfer object to be sewn exposes above needle plate 200.
Below, be illustrated with reference to Fig. 4～Fig. 9 about the main composition of present embodiment.The thin plate that horn frame 10 assemblings shown in Figure 4 are stamping forms.Horn frame 10 has the maintaining part 10m that is used to install presser bar 100.The thin plate that the maintaining part 10m assembling of horn frame 10 is stamping forms.As shown in Figure 4, be provided with the shank connecting cylinder 23 that conduct keeps the shank maintaining part of shank 21.Shank connecting cylinder 23 is installed on shank arm 15k by limit screw 16.By shank connecting cylinder 24, on shank arm 15k, shank 21 is installed.Shank 21 extends along the vertical direction.Shank 21 has the pin folder 24 as the pin maintaining part that keeps pin 20 in the bottom.When making, shank 21 is at arrow Y1, lifting on the Y2 direction.When shank 21 when arrow Y2 direction descends, pin 20 is inserted in the pin hole 201 of needle plate 200.
According to present embodiment, as shown in Figure 4, shank arm 15k is by the pars intermedia of shank lining 21c supporting shank 21.On the maintaining part 10m of horn frame 10, presser bar 100 to be installed with the parallel or substantially parallel mode of shank 21.Presser bar 100 extends along the vertical direction.In the bottom of presser bar 100, keep screw 124 to be provided with the pressing part 120 that is claw shape by presser feet maintaining part 122 and presser feet.Keep screw 124 if unclamp presser feet, then can make pressing part 120 keep shaking of screw 124 on every side at presser feet.As shown in Figure 4, pressing part 120 is faced mutually with needle plate 200, and has when making the function by the object to be sewn on the eedle presser 200.Pressing part 120 has the pin of facing mutually with the pin hole 201 of needle plate 200 and inserts space 121.Therefore, when shank when making 21 and pin 20 when arrow Y2 direction descends, the pin that pin 20 is inserted into pressing part 120 inserts in the pin hole 201 of space 121 and needle plate 200.
As shown in Figure 4, at the pars intermedia of the length direction of presser bar 100, one is equipped with the bearing 300 as shaking bearing portion.Bearing 300 is that base material forms with metals such as copper.Bearing 300 is so-called ball bearings.Fig. 5 represents the enlarged drawing of bearing 300.What as shown in Figure 5, bearing 300 had the inner peripheral surface 301 of the drum of dividing the through hole 304 run through above-below direction and formed shell surface shakes outside wall surface 302.In through hole 304, the pars intermedia of the length direction of pressing mouthful bar 100 is installed with breakthrough status.The outside wall surface 302 of shaking of this bearing 300 is formed by following convex surface, that is: this convex surface constitutes the major part of spherical (the containing doubtful spherical) that be 3D shape of being formulated by the regulation radius of curvature that with centre of sphere R1 (with reference to Fig. 5) is the center.As shown in Figure 5, on the base plate 15b of the maintaining part 10m of horn frame 10, be provided with a plurality of supports of bearing 14,18.The support of bearing 14 is positioned at the upside of the support of bearing 18.The face that the is supported 14c of the support of bearing 14 is formed by the spherical concave surface that is 3D shape on the top of shaking outside wall surface 302 of block bearing 300 joltily.The face that the is supported 18c of the support of bearing 18 is formed by the spherical concave surface that is 3D shape of the bottom of shaking outside wall surface 302 of block bearing 300 joltily.Be supported face 14c, 18c and be equivalent to be arranged on the face that is supported on the horn frame 10, and form the part of sphere (comprising doubtful sphere).Therefore, bearing 300 can joltily be supported by the face that is supported 14c, the 18c of the support of bearing 14,18 that is arranged at maintaining part 10m bottom.Therefore, the pars intermedia of the length direction of presser bar 100 can joltily be remained in the base plate 15b of the maintaining part 10m of horn frame 10 with bearing 300.
Its result, the upper end 100u of the length direction of presser bar 100 and bottom 100d can joltily be supported.That is, as shown in Figure 4, the upper end 100u of the length direction of presser bar 100 can freely shake along arrow S1 and S2 direction.Its result, the bottom 100d of the length direction of presser bar 100 and pressing part 120 can freely shake along arrow S1 ' and S2 ' direction (fore-and-aft direction of Sewing machines).Thus, can raise the position of seamless foot 120, thereby the pin insertion space 121 of pressing part 120 is faced mutually with the pin hole 201 of needle plate 200 at the fore-and-aft direction of Sewing machines.At this, the place ahead is to being meant the user close direction of presser bar 100 to the operation Sewing machines.The user's of operation Sewing machines direction is left at the rear to toe presser bar 100.In addition, the housing 1a of Sewing machines has front 1e and back 1r.
As shown in Figure 4, fixed part 400 has the function that presser bar 100 is fixed in the maintaining part 10m of horn frame 10.Cantilever-shaped movable carriage 401 that the formation that has fixed part 400 can move to arrow S1 and S2 direction with respect to the maintaining part 10m of horn frame 10 and the fixture 420 that presser bar 100 is linked to movable carriage 401.Movable carriage 401 is the parts that separate with bearing 300, and is housed inside the space chamber 15x of the maintaining part 10m of horn frame 10.
As shown in Figure 4, movable carriage 401 is set at the upside that more leans on than bearing 300 in presser bar 100.Specifically, be formed with tongue-shaped installation portion 403 on the top of movable carriage 401.Card only is combined with the upper end 100u of presser bar 100 in the installing hole 405 of installation portion 403.Thereby presser bar 100 moves with the top 401u one of movable carriage 401.At this, as shown in Figure 4, the bottom 401d of movable carriage 401 by rotation supporting part 408 quilts joltily rotating support in the maintaining part 10m of horn frame 10.Its result by rotation supporting part 408, can make the top 401u of movable carriage 401 shake in arrow S1, S2 direction.
In addition, as shown in Figure 4, rotation supporting part 408 (the rotating support point that movable carriage 401 is shaken) separates with bearing 300 (the rotating support point that presser bar 100 is shaken) and is arranged at horn frame 10.This rotation supporting part 408 be configured in than bearing 300 more the top and than fixture 420 (upper end 100u) more the below.
According to present embodiment, as shown in Figure 4, movable carriage 401 has to be arranged on makes presser bar 100 shake slotted hole 409 on the direction of shaking on the direction (arrow S1, S2 direction are equivalent to the fore-and-aft direction of Sewing machines) and first holding section 411 that is shape of ears.Above-mentioned fixing piece 420 is the screw components with external thread part 420m, and with open-work 10w (the being equivalent to endoporus) screw thread of the slotted hole 409 of movable carriage 401 and horn frame 10 in conjunction with being connected.At this, with rotation supporting part 408 is the center, movable carriage 401 is being shaken on the position arbitrarily after arrow S1, S2 direction are shaken, if fixture 420 is linked to the open-work 10w of horn frame 10, then can shakes the maintaining part 10m that locational movable carriage 401 is fixed in horn frame 10 arbitrarily with shaking this.Can adjust the shaking quantity of the angle of the length that is equivalent to above-mentioned slotted hole 409, movable carriage 401 and presser bar 100.If thus fixture 420 is linked to horn frame 10, and, then the presser bar 100 of movable carriage 401 can be fixed on and shakes the position arbitrarily the shaking in the allowed band of presser bar 100.Its reason is, because presser bar 100 is combined integratedly with movable carriage 401.Like this, because slotted hole 409 and fixture 420 are set at the upper end 100u side of presser bar 100, that is, be set at the top 401u of movable carriage 401.Upper end 100u leaves bearing 300.Top 401u leaves rotation supporting part 408.Thus, can help guaranteeing the shaking quantity of movable carriage 401 and the shaking quantity of presser bar 100.
As shown in Figure 4, on the side plate 15a of the support 10m of horn frame 10, be formed with to be and connect poroid first opening 413 and second opening 415.First opening 413 is formed on than second opening 415 upside more.Second opening 415 is formed on than first opening 413 downside more.First opening 413 engages with first holding section 411 of movable carriage 401.Consequently, suppressed movable carriage 401 to shake the direction that direction (arrow S1, S2 direction) intersects and rotate.Like this, first holding section 411 of movable carriage 401 as with above-mentioned direction of intersecting on stop movable carriage 401 to rotate the prevention rotation section.Thereby according to present embodiment, above-mentioned bearing 300 has the function that can three-dimensional shake, and movable carriage 401 and presser bar 100 can (fore-and-aft direction of Sewing machines) two dimension shake on arrow S1, S2 direction.
At this, under inlet α 1 (with reference to Fig. 4) occasion of first holding section 411 that can the movable carriage 401 of visual confirmation in first opening 413 of horn frame 10, if inlet α 1 that can visual confirmation first holding section 411 then can hold the shaking quantity of the movable carriage 401 on arrow S1, the S2 direction and the shaking quantity of presser bar 100 to a certain extent.
Further according to the present invention, as shown in Figure 4, with the shaking quantity size of movable carriage 401 irrespectively, first opening 413 of horn frame 10 is passed to foreign side in first holding section 411, and the outside wall surface of the side plate 15a of the maintaining part 10m of slave jib 10 is exposed.At this, from first opening 413 on first holding section 411 that foreign side exposes, other accessaries of sewing machine elements 417 (for example: be used to illuminate the illuminating lamp under the pin of pin 20) are installed.At this moment, can effectively utilize first holding section 411 of the movable carriage 401 that exposes to foreign side from first opening 413.
As shown in Figure 4, presser bar saddle 130 combines with presser bar 100 one.Presser bar saddle 130 and has position 130a, 130b between bearing 300 and movable carriage 401.Between the installation portion 403 of the position of presser bar saddle 130 130a and movable carriage 401, be fitted with spiral buffering spring 140.As shown in Figure 4, second holding section 132 of presser bar saddle 130 is inserted in second opening 415 of maintaining part 10m of horn frame 10, and engages with second opening 415.By engaging of second opening 415 and second holding section 132, can stop the rotation of presser bar saddle 130 and presser bar 100.In addition, carry out punch process, then can be easy to be shaped if will be poroid first opening 413 and second opening 415 of perforation.
As mentioned above, presser bar 100 is configured in the maintaining part 10m of horn frame 10 by movable carriage 401 and bearing 300.At this, as shown in Figure 4, by shank arm axle 15h, shank arm 15k is installed in the maintaining part 10m of horn frame 10.On shank arm 15k, shank 21 is installed by shank connecting cylinder 23.
According to present embodiment, presser bar 100 can joltily be configured in the maintaining part 10m of horn frame 10 by movable carriage 401 and bearing 300.Thereby, presser bar 100 and shank 21 mutual independences and be installed in horn frame 10.Thereby,, also can suppress shaking of shank 21 and pin 20 even make presser bar 100 shake the position of adjusting presser bar 100 along shaking direction (arrow S1, S2 direction).That is,, this can not shaken yet and pass to shank even, shake presser bar 100 and carry out the position adjustment by adjusting operation.
Further according to present embodiment, as shown in Figure 7, horn frame 10 is provided with argues for the sake of arguing 19 on the presser feet.Argue for the sake of arguing on the presser feet and 19 can on above-below direction, shake by the 19c (with reference to Fig. 1) that argues for the sake of arguing on the presser feet.As 19 the operating portion 19e of arguing for the sake of arguing on the presser feet during by user's manual operation, lifted by (arrow Y1 direction) upward by the 19 presser bar saddles 130 of arguing for the sake of arguing on the presser feet, presser bar 100 is moved upward, and pressing part 120 can be kept out of the way above needle plate 200.
As shown in Figure 7, the maintaining part 10m of horn frame 10 is provided with shank and shakes carriage 150.Shake on the carriage 150 at shank, shake ring 151 and pin 152A, 152B, can joltily maintain shank arm 15k by shank.Shank arm 15k can joltily be installed in the shank that is installed on horn frame 10 and shake on the carriage 150 by pin 152A, 152B along arrow M1, M2 direction (with reference to Fig. 8).Be installed in the position adjusting screw 155 that shank shakes carriage 150 if unscrew, then shake ring 151, can on arrow M1, M2 direction, adjust the position of shank arm 15k and the position of shank 21 by shank.And, can on arrow M1, M2 direction, adjust the position of pin 20.If position adjusting screw 155 is linked, then shake carriage 150 with respect to shank, adjust binding locking pin lever arm 15k on the position at it.So carry out the position adjustment of the pin 20 of shank 21.
According to above-mentioned present embodiment, when presser bar 100 being adjusted operation, at first, under the state of unscrewing position adjusting screw 155, the position of pin 20 is adjusted in the position of adjusting shank 21.Thus, face mutually with the pin hole 201 of needle plate 200, and pin 20 is inserted in the pin hole 201.And position adjusting screw 155 is linked.Afterwards, adjust the adjustment operation of the position of presser bar 100.According to present embodiment, presser bar 100 and shank 21 are installed on the maintaining part 10m of horn frame 10 independently of each other at this.Then, unclamp fixture 420, the top 401u of movable carriage 401 can be shaken.Under this state, be the center with rotation supporting part 408, movable carriage 401 is suitably shaken to arrow S1 direction (rear of Sewing machines) or S2 direction (the place ahead of Sewing machines).Its result makes the pressing part 120 of the bottom of presser bar 100 shake along arrow S1 ' (the place ahead of Sewing machines) or arrow S2 ' (rear of Sewing machines).Thus, the position of the pressing part 120 of adjustable seamless foot lever 100 (position on arrow S1 ', the S2 ' direction, the position on the fore-and-aft direction of Sewing machines).Thereby, even face mutually with the pin hole 201 of needle plate 200 for the pin of the pressing part 120 that makes presser bar 100 inserts space 121, and raise the position of seamless foot 120 in arrow S1 direction (rear) or S2 direction (the place ahead), but shank 21 also original state remains secured to the state of maintaining part 10m, and shaking of shank 21 is suppressed.Its result even shake presser bar 100 and pressing part 120, thereby makes the pin insertion space 121 of the pressing part 120 of presser bar 100 face mutually with the pin hole 201 of the needle plate 200 of support frame 11 as described above, and this shakes and also can not be passed to shank 21 and pin 20.Thereby, can abrogate the operation of readjusting shank 21 positions.
In other words, according to present embodiment, as mentioned above, the maintaining part 10m of horn frame 10 has: bearing 300, it can joltily keep the pars intermedia of the length direction of presser bar 100 in the mode that the upper end 100u and the bottom 100d of the length direction of presser bar 100 can shake; Fixed part 400, it shakes the presser bar 100 that shakes and is fixed in maintaining part 10m on the position at it.Owing to be this structure, though presser bar 100 and shank 21 are installed on the maintaining part 10m of horn frame 10, presser bar 100 shake and shank 21 independent mutually, and shank 21 separation from the shaking of presser bar 100.Thereby, even the pin hole 201 that inserts space 121 and needle plate 200 for the pin of the pressing part 120 that makes presser bar 100 mutually in the face of and shake presser bar 100 in operating adjusting, shaking also of shank 21 is suppressed.Thereby even presser bar 100 is shaken to arrow S1 direction (rear) or S2 direction (the place ahead), this shakes also can not be passed to shank 21.The adjustment operation of above-mentioned presser bar 100 though can carry out when making Sewing machines, also can be carried out before Sewing machines uses.
Further, according to the present invention, as shown in Figure 4, when the distance with the pressing part 120 of presser bar 100 and bearing 300 is made as L1, and when the distance of the upper end 100u of presser bar 100 and bearing 300 is made as L2, L2 is set as the (L2＞L1) greater than L1.Thus, compare with the displacement that shakes of pressing part 120 (the bottom 100d of presser bar 100), can increase presser bar 100 upper end 100u shake displacement.So help the fine setting of the displacement (displacement on arrow S1 ' and the S2 ' direction) of pressing part 120.
In addition, according to present embodiment, as shown in Figure 4, the ratio bearing 300 in the fixture 420 fixing presser foot bars 100 and the central M of the length between the 100u of upper end are more by upper end 100u side.Specifically, as shown in Figure 4, fixture 420 be set at the contour substantially position of the upper end 100u of presser bar 100 on, and fixing upper end 100u side.At this moment, be F if establish the binding strength that produces by fixture 420, establishing from fixture 420 to bearing 300 distance is LD, the moment that then is equivalent to the product of F * LD increases.Even die when masterpiece is used for the pressing part 120 of presser bar 100 outside, also can guarantee the binding strength that produces by fixture 420 well.Thereby, help shaking on the position at it and fixing with being fixed in the required presser bar that shakes the position 100.
In addition, the present invention not only is confined to the above embodiments, implements as long as can suitably change in the scope that does not break away from purport.According to the foregoing description, though slotted hole 409 is formed at movable carriage 401, and open-work 10w is formed at horn frame 10, also can make long hole shape be formed in the horn frame, and make open-work be formed at movable carriage, and the fixture that the slotted hole of slave jib passes and the open-work (screw) of movable carriage are linked.
Utilizability on the industry
The present invention applicable to domestic sewing machine, business with sewing machine etc.
Claims (10)
1. the pedal bar holding structure of a Sewing machines is characterized in that,
Have:
Shank (21), it can keep being inserted into the pin (20) in the pin hole (201) of needle plate (200) and extend along the vertical direction;
Presser bar (100), it can keep pressing part (120) and extend along the vertical direction, and this pressing part has the pin faced mutually with the above-mentioned pin hole (201) of above-mentioned needle plate (200) and inserts space (121) and the object to be sewn on the above-mentioned needle plate (200) is pushed;
Horn frame (10), it is installed in Sewing machines body (1) and keeps above-mentioned presser bar (100), and keeps above-mentioned shank (21) by shank maintaining part (23),
Above-mentioned horn frame (10) has:
Shaking bearing portion (300), the mode that its upper end with the length direction of above-mentioned presser bar (100u) and bottom (100d) can shake can joltily keep the pars intermedia of above-mentioned presser bar (100) length direction;
Fixed part (400), the above-mentioned presser bar (100) after it will shake shake at it and are fixed in above-mentioned horn frame (10) on position,
Above-mentioned shaking bearing portion is bearing (300), and above-mentioned bearing has the outside wall surface of shaking (302), and this shakes, and outside wall surface can joltily be supported by the face that is supported that is set at above-mentioned horn frame (10) (14c, 18c) and the cross section is the circular arc convex,
Said fixing portion (400) has: movable carriage (401), and it is set in the above-mentioned presser bar (100) top more than above-mentioned shaking bearing portion (300), and follows shaking of above-mentioned presser bar (100) and shake with respect to above-mentioned horn frame (10); Fixture (420), the above-mentioned movable carriage (401) after it will shake is fixed in above-mentioned horn frame (10),
Above-mentioned movable carriage (401) and fixture (420) are parts separated from each other.
2. the pedal bar holding structure of Sewing machines as claimed in claim 1, it is characterized in that, the above-mentioned outside wall surface (302) of shaking of above-mentioned shaking bearing portion (300) is formed by the spherical convex surface that is 3D shape, and the above-mentioned face (14c, 18c) that is supported of above-mentioned horn frame (10) is formed by the above-mentioned spherical concave surface that is 3D shape that shakes outside wall surface (302) that can joltily support above-mentioned shaking bearing portion (300).
3. the pedal bar holding structure of Sewing machines as claimed in claim 1, it is characterized in that the central authorities (M) of the length between the above-mentioned shaking bearing of the ratio portion (300) in the fixing above-mentioned presser bar (100) of above-mentioned fixing piece (420) and the upper end (100u) of above-mentioned presser bar (100) are more by above-mentioned upper end (100u) side.
4. the pedal bar holding structure of Sewing machines as claimed in claim 1, it is characterized in that, the above-mentioned pressing part (120) of above-mentioned presser bar (100) and the distance between the above-mentioned shaking bearing portion (300) are made as L1, when the upper end (100u) of above-mentioned presser bar (100) and the distance between the above-mentioned shaking bearing portion (300) are made as L2, be set at L2 greater than L1, i.e. L2＞L1.
5. the pedal bar holding structure of Sewing machines as claimed in claim 1, it is characterized in that, side in above-mentioned movable carriage (401) and the above-mentioned horn frame (10) has the slotted hole (409) that extends on the direction of shaking above-mentioned presser bar (100), above-mentioned fixing piece (420) is inserted in an above-mentioned side's the slotted hole (409), so that above-mentioned movable carriage (401) can be fixed in above-mentioned horn frame (10).
6. the pedal bar holding structure of Sewing machines as claimed in claim 1, it is characterized in that, above-mentioned horn frame (10) has first opening (413), above-mentioned movable carriage (401) has in above-mentioned first opening (413) that is inserted into above-mentioned horn frame (10) and first holding section (411) that can engage with above-mentioned first opening (413), by engaging of above-mentioned first opening (413) and above-mentioned first holding section (411), carry out the braking of above-mentioned movable carriage (401).
7. the pedal bar holding structure of Sewing machines as claimed in claim 6 is characterized in that, in above-mentioned first holding section (411) of more exposing than the outside wall surface of above-mentioned movable carriage (401) from above-mentioned first opening (413) illuminating lamp (417) is installed.
8. the pedal bar holding structure of Sewing machines as claimed in claim 1, it is characterized in that, be provided with the presser bar saddle of installing with above-mentioned presser bar (100) one (130), above-mentioned horn frame (10) is provided with second opening (415), above-mentioned presser bar saddle (130) has in above-mentioned second opening (415) that is inserted into above-mentioned horn frame (10) and second holding section (132) that can engage with above-mentioned second opening (415), by engaging of above-mentioned second opening (415) and above-mentioned second holding section (132), carry out the braking of above-mentioned presser bar saddle (130).
9. the pedal bar holding structure of Sewing machines as claimed in claim 1 is characterized in that, above-mentioned horn frame (10) is provided with the shank maintaining part (23) that keeps above-mentioned shank (21).
10. the pedal bar holding structure of Sewing machines as claimed in claim 1, it is characterized in that, transmit the upward axle (3) of the power that drives above-mentioned shank (21),, kept rotationally by top that is fixed on above-mentioned horn frame (10) and the pair of bearings (300) that forms by elastomer.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005-267424 | 2005-09-14 | ||
| JP2005267424A JP4888686B2 (en) | 2005-09-14 | 2005-09-14 | Sewing bar holding structure |
| JP2005267424 | 2005-09-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1932116A CN1932116A (en) | 2007-03-21 |
| CN1932116B true CN1932116B (en) | 2011-05-25 |
Family
ID=37878140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101272314A Expired - Fee Related CN1932116B (en) | 2005-09-14 | 2006-09-14 | Pedal bar holding structure for sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4888686B2 (en) |
| CN (1) | CN1932116B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864588A (en) * | 2012-08-27 | 2013-01-09 | 吴江市中盛机械有限公司 | Needle frame joint slide block guide rail for industrial sewing machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184705Y (en) * | 1993-06-28 | 1994-12-07 | 陈满雄 | Computer control sewing machine presser feet device structure |
| CN2299076Y (en) * | 1997-05-06 | 1998-12-02 | 卢金荣 | Overedger presser and its movable support |
| CN1351206A (en) * | 2000-10-30 | 2002-05-29 | 山井顺明 | Presser assembly of sewing machine |
| US20020062774A1 (en) * | 2000-11-24 | 2002-05-30 | Yasuro Sano | Sewing machine with a device for adjusting a pressure applied to a pressure bar and a device for lifting the presser bar |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0362568U (en) * | 1989-10-20 | 1991-06-19 |
-
2005
- 2005-09-14 JP JP2005267424A patent/JP4888686B2/en not_active Expired - Fee Related
-
2006
- 2006-09-14 CN CN2006101272314A patent/CN1932116B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184705Y (en) * | 1993-06-28 | 1994-12-07 | 陈满雄 | Computer control sewing machine presser feet device structure |
| CN2299076Y (en) * | 1997-05-06 | 1998-12-02 | 卢金荣 | Overedger presser and its movable support |
| CN1351206A (en) * | 2000-10-30 | 2002-05-29 | 山井顺明 | Presser assembly of sewing machine |
| US20020062774A1 (en) * | 2000-11-24 | 2002-05-30 | Yasuro Sano | Sewing machine with a device for adjusting a pressure applied to a pressure bar and a device for lifting the presser bar |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2003-181181A 2003.07.02 |
| JP特开平11-47477A 1999.02.23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4888686B2 (en) | 2012-02-29 |
| JP2007075369A (en) | 2007-03-29 |
| CN1932116A (en) | 2007-03-21 |
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