CN105734841A - Sewing machine cloth feeding tooth differential mechanism - Google Patents
Sewing machine cloth feeding tooth differential mechanism Download PDFInfo
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- CN105734841A CN105734841A CN201410740554.5A CN201410740554A CN105734841A CN 105734841 A CN105734841 A CN 105734841A CN 201410740554 A CN201410740554 A CN 201410740554A CN 105734841 A CN105734841 A CN 105734841A
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- differential
- cloth conveying
- moving part
- conveying teeth
- cloth
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Abstract
The invention provides a sewing machine cloth feeding tooth differential mechanism using a differential device to drive a first cloth feeding tooth and a second cloth feeding tooth to move; the differential device is a U-shape linkage formed by a first link member, a second link member and a third link member; the differential device uses the first link member to drive the first cloth feeding tooth, and uses the third link member to drive the second cloth feeding tooth; the third link member is provided with an adjusting groove; an adjusting piece allowing a user to adjust positions is arranged in the adjusting groove; the position of the adjusting piece can be changed to correspondingly change the fulcrum of the third link member and amplitude on two ends, thus simultaneously changing the amplitude of the first and second cloth feeding teeth, and realizing differential purpose.
Description
Technical field
The present invention relates to the cloth conveying teeth differential attachment of a kind of sewing machine, it is relevant with the feeding transmission mechanism of sewing.
Background technology
Along with the diversification of the maturation of textile technology and Fabric Design, the function of sewing machine and sewing mode are also many towards development therewith；With cloth conveying teeth, the sewing machine of early stage only configures single cloth conveying teeth and carries out work feed work, then just have along with sewing demand the sewing machine of double; two cloth conveying teeth in response to and give birth to, through two cloth conveying teeths speed difference and energy sewing go out fold or more smooth fabric.
Accordingly, it is desirable to provide the easy differential attachment adjusting again two cloth conveying teeths rapidly of user.
Summary of the invention
The present invention provides the cloth conveying teeth differential attachment of a kind of sewing machine, and it is to provide and a kind of easy can adjust again the mechanism with two cloth conveying teeths rapidly.
nullFor solving the problems referred to above，The present invention provides the cloth conveying teeth differential attachment of a kind of sewing machine，It is in the support of a sewing machine, be provided with a driving shaft driven by a power source，The power of this driving shaft transmits to having one first cloth conveying teeth through a differential gear being arranged on this support、One cloth-feeding device of one second cloth conveying teeth，This first cloth conveying teeth、Second cloth conveying teeth is one first cloth conveying teeth platform of respectively sliding sleeve mutually、One second cloth conveying teeth platform is driven，This differential gear has one first moving part、One second moving part and one the 3rd moving part，This first moving part is that this driving shaft is driven and one end of two ends respectively this first cloth conveying teeth platform of pivot joint and this second moving part，Make drive the first cloth conveying teeth platform advance or retreat、This second moving part swings，The other end of this second moving part is articulated in one end of the 3rd moving part，The another end of the 3rd moving part is hubbed at this second cloth conveying teeth platform and drives it to advance or retreat，And the 3rd moving part two ends between an adjustment tank is set，One adjusts the position that support is placed in slippingly in this adjustment tank and is available for users to adjust its place，It is adjusted by this adjustment support in the upper position of the 3rd moving part，Make the 3rd moving part be second moving part interlock time，Produce the different amplitudes of oscillation，And reach this first cloth conveying teeth platform、Second cloth conveying teeth platform and this first cloth conveying teeth、The differential change of the second cloth conveying teeth work feed amplitude.
Further, described driving shaft extends along a first direction, this first direction vertical defines a second direction, one end of this first cloth conveying teeth platform shapes a pivot portion, the other end shapes a clip slot, position between pivot portion and this clip slot of this first cloth conveying teeth platform then shapes the portion of wearing, this pivot portion and this wear and between portion, then form a device space, this portion of wearing runs through and arranges one and wear, this pivot portion then arranges certain groove relative to this position worn, this the first cloth conveying teeth platform passes through one end of one first this first moving part of pivot pivot joint extended in a first direction and the pivot portion of this first cloth conveying teeth platform, this first cloth conveying teeth is fixedly arranged on this first cloth conveying teeth platform, and these the first pivot two ends are in not concentric, the relation making this first moving part end and this pivot portion changes by rotating this first pivot；
This second cloth conveying teeth is fixed on this second cloth conveying teeth platform, this the second cloth conveying teeth platform can be arranged in the clip slot of this first cloth conveying teeth platform in a second direction slippingly, and one end of this fixed bar of the second cloth conveying teeth platform, this bar extends in a second direction and the other end wear through this after penetrate this and determine in groove, and this bar wear between portion and this pivot portion in this this place and in space, wear a trunnion mount；And this trunnion mount one end arranges one and wears end and wear in conjunction with this bar, the other end of this trunnion mount is then a pivot extended in a first direction, and the other end for the 3rd moving part wears combination pivotly.
Further, described driving shaft arranging a bearing, this first cloth conveying teeth platform is bearing in this bearing slippingly；This second cloth conveying teeth platform passes through this bar of reservation secure bond；And this bar wears placing between portion and this pivot portion wear one first bolster and this trunnion mount in space in this.
Further, described second cloth conveying teeth platform passes through this bar of reservation secure bond, and this bar is worn the position between portion and this reservation separately wear one second bolster in this.
Further, described support is pivotally arranged a work feed rocking bar and stretches out one end, and the middle section position secure bond between these the first moving part two ends is in one end of this work feed rocking bar；And this fixedly connected first connecting rod of work feed rocking bar other end, the other end of this first connecting rod links one end of this second connecting rod pivotly, the other end of this second connecting rod links one end of this third connecting rod pivotly through a string axle, and the other end of this third connecting rod is set in this driving shaft and can be driven by this driving shaft bias.
Further, one end of described string axle passes this second connecting rod, third connecting rod the slide block that is pivoted, this slide block is placed in the chute in a fourth link slippingly, one end of this fourth link arranges this chute and is pivotly incorporated on this support, the other end of this fourth link links one end of one the 5th connecting rod pivotly, one end of the other end of the 5th connecting rod then pivot joint one six-bar linkage, the other end of this six-bar linkage then fixed knot unification cloth width axle, the other end that this cloth width axle is pivotly incorporated on this support this cloth width axle is provided with a cloth width knob.
Further, a described cloth width axle separately sheathed cloth width regulates wheel, and this cloth width regulates the outer peripheral edge of wheel and has multiple teeth portion, and on this support, this cloth width adjoining regulates wheel and arranges a cloth width shell fragment, this cloth width shell fragment one end is fixed on this support, and the other end is flexibly equipped in this cloth width and regulates the teeth portion of wheel.
Further, described support separately arranges a differential adjusting apparatus, this differential adjusting apparatus comprises a differential adjustment axle, one differential adjustment seat, one first moving part, one second moving part, one the 3rd moving part, this differential adjustment axle is pivotably disposed on this support, and one end of this differential adjustment seat of one end secure bond of this differential adjustment axle, the other end of this differential adjustment seat is pivoted this adjustment support, this differential adjustment axle upper sleeve through fixes one end of this first moving part, the other end of this first moving part is pivotly in conjunction with one end of this second moving part, the other end of this second moving part is pivotly in conjunction with one end of the 3rd moving part, the other end then secure bond of the 3rd moving part is in a differential shaft, this differential shaft is pivotly incorporated on this support, the other end of this differential shaft is provided with a differential knob.
Further, sheathed differential adjustment of described differential shaft is taken turns, and this differential outer peripheral edge regulating wheel has multiple teeth portion, and on this support, this differential adjustment wheel adjoining arranges a differential shell fragment, this differential shell fragment one end is fixed on this support, and the other end is flexibly equipped in this differential teeth portion regulating wheel.
The present invention drives the first cloth conveying teeth and the second cloth conveying teeth through differential gear, and through changing the position adjusting support and change the beat fulcrum of the 3rd moving part driving the first cloth conveying teeth simultaneously, and then reach can the quick differential purpose of simplicity two cloth conveying teeths of adjustment.
Accompanying drawing explanation
Fig. 1 is the overall appearance schematic diagram of the cloth conveying teeth differential attachment of sewing machine of the present invention.
Fig. 2 is the part-structure schematic diagram of the hiding support of cloth conveying teeth differential attachment of sewing machine of the present invention.
Fig. 3 is the structural representation of the hiding support of cloth conveying teeth differential attachment of sewing machine of the present invention.
Fig. 4 is another visual angle schematic diagram of the hiding support of cloth conveying teeth differential attachment of sewing machine of the present invention.
Fig. 5 is the side view that the cloth conveying teeth differential attachment of sewing machine of the present invention hides support and partial component.
Fig. 6 is the stereochemical structure sectional view of the hiding support of cloth conveying teeth differential attachment of sewing machine of the present invention.
Fig. 7 is the structure sectional view of the hiding support of cloth conveying teeth differential attachment of sewing machine of the present invention.
Fig. 8 is the sectional view of the hiding support of cloth conveying teeth differential attachment of sewing machine of the present invention, and is adjust support to be positioned at the state of adjustment tank middle section position.
Fig. 9 is the action diagram of Fig. 7 state.
Figure 10 is the sectional view of the hiding support of cloth conveying teeth differential attachment of sewing machine of the present invention, and is adjust support to be positioned at the adjustment tank state near the second moving part position.
Figure 11 is that Fig. 9 state starts mapping.
Sectional view sent out by the hiding support of cloth conveying teeth differential attachment that Figure 12 is sewing machine of the present invention, and is adjust support to be positioned at adjustment tank near the first cloth conveying teeth platform position hair-like state.
Description of reference numerals
Support 10 driving shaft 11
Bearing 12 work feed rocking bar 20
Work feed drives adjustment unit 30 first connecting rod 31
Second connecting rod 32 goes here and there axle 33
Third connecting rod 34 slide block 341
Fourth link 35 chute 351
5th connecting rod 36 six-bar linkage 37
Cloth width axle 38 cloth width regulates wheel 381
Cloth width knob 382 cloth width shell fragment 383
Differential gear 40 first moving part 41
Second moving part 42 the 3rd moving part 43
Adjustment tank 431 cloth-feeding device 50
First cloth conveying teeth platform 51 pivot portion 511
Clip slot 512 wears portion 513
Device space 514 wears 515
Determine groove 516 second cloth conveying teeth platform 52
Reservation 521 second bolster 522
3rd bolster 59 first cloth conveying teeth 53
Second cloth conveying teeth 54 first pivot 55
Bar 56 first bolster 57
Trunnion mount 58 wears end 581
The differential adjusting apparatus 60 of pivot 582
The differential adjustment seat 62 of differential adjustment axle 61
Adjust support 621 first moving part 63
Second moving part 64 the 3rd moving part 65
The differential adjustment wheel 661 of differential shaft 66
The differential shell fragment 663 of differential knob 662
First direction D1 second direction D2
Third direction D3
Detailed description of the invention
Preferred embodiment such as Fig. 1 of the cloth conveying teeth differential attachment of sewing machine of the present invention is to, shown in 12, comprising:
One support 10, it is pivotally arranged a driving shaft 11, this driving shaft 11 one end is stretched out this support 10 and is provided with in conjunction with power source, and this driving shaft 11 arranges a bearing 12, the bearing of trend of this driving shaft 11 is defined as first direction D1, and vertically this first direction D1 then can re-define out orthogonal second direction D2 and third direction D3.
One work feed rocking bar 20, D1 is pivotably disposed on this support 10 and this support 10 is stretched out in one end in the first direction.
nullOne work feed drives adjustment unit 30，Comprise a first connecting rod 31、One second connecting rod 32、A string axle 33、One third connecting rod 34、One fourth link 35、One the 5th connecting rod 36 and a six-bar linkage 37，One end this work feed rocking bar 20 fixedly connected of this first connecting rod 31，The other end of this first connecting rod 31 links one end of this second connecting rod 32 pivotly，The other end of this second connecting rod 32 links the other end of this third connecting rod 34 pivotly through this string axle 33，The other end of this third connecting rod 34 is set in this driving shaft 11 and can be subject to the eccentric drive of this driving shaft 11，One end of this string axle 33 passes this second connecting rod 32、Third connecting rod 34 slide block 341 that is pivoted，This slide block 341 is placed in the chute 351 in this fourth link 35 slippingly，One end of this fourth link 35 arranges this chute 351 and is pivotly incorporated on this support 10，The other end of this fourth link 35 links one end of the 5th connecting rod 36 pivotly，One end of the other end of the 5th connecting rod 36 then pivot joint one six-bar linkage 37，The other end of this six-bar linkage 37 then secure bond is pivotly incorporated in the cloth width axle 38 on this support 10 in one and this cloth width axle 38 can be subject to drive，This cloth width axle 38 one end is pivotly incorporated in this support 10，The other end of this cloth width axle 38 then fixing cloth width that wears regulates wheel 381 and a cloth width knob 382，This cloth width regulates the outer peripheral edge of wheel 381 and has multiple teeth portion，And this cloth width more adjoining adjustment wheel 381 arranges a cloth width restriction shell fragment 383 on this support 10，This cloth width restriction shell fragment 383 one end is fixed on this support 10，The other end has the teeth portion being flexibly equipped in this cloth width adjustment wheel 381.
One differential gear 40, comprise one first moving part 41, one second moving part 42, one the 3rd moving part 43, middle section position secure bond between these the first moving part 41 two ends stretches out one end of this support 10 in this work feed rocking bar 20, make this first moving part 41 can be driven by this driving shaft 11 accordingly, one end of this first moving part 41 is pivotly in conjunction with one end of this second moving part 42, the other end of this second moving part 42 is pivotly in conjunction with one end of the 3rd moving part 43, this second moving part 42 is pivotly in conjunction with this first moving part 41 and the 3rd moving part 43 and become ㄩ shape connecting rod, when this first moving part 41 beat, this second moving part 42 also just can produce to swing；And the position that the 3rd between moving part 43 two ends runs through and offers an adjustment tank 431.
nullOne cloth-feeding device 50，Comprise this first cloth conveying teeth platform 51、This second cloth conveying teeth platform 52、This first cloth conveying teeth 53、This second cloth conveying teeth 54，One end of this first cloth conveying teeth platform 51 shapes a pivot portion 511，The other end shapes a clip slot 512，Position between pivot portion 511 and this clip slot 512 of this first cloth conveying teeth platform 51 then shapes the portion of wearing 513，This pivot portion 511 and this wear and between portion 513, then form a device space 514，And this wears portion 513 and runs through and arrange one and wear 515，This position wearing 515 relatively, this pivot portion 511 then arranges certain groove 516，This first cloth conveying teeth platform 51 one first pivot 55 that D1 extends in the first direction through concatenates the other end of this first moving part 41 and the pivot portion 511 of this first cloth conveying teeth platform 51 pivotly，This first cloth conveying teeth platform 51 is made to be combined pivotly with this first moving part 41，This first cloth conveying teeth 53 is fixedly installed on this first cloth conveying teeth platform 51，And this first cloth conveying teeth platform 51 is bearing on this bearing 12 on this driving shaft 11 slippingly；And the two ends of this first pivot 55 are in not concentric, making the first moving part 41 that pivot concatenates is in not concentric state with the pivot portion 511 of this first cloth conveying teeth platform 51, the relation between this pivot portion 511 and this first moving part 41 can be changed by rotating this first pivot 55, reach to finely tune this first moving part 41 start the first cloth conveying teeth 51 position and make the first cloth conveying teeth 51 have a purpose of different stroke point at the whole story, and on this first moving part 41 end, spiral shell sets a bolt being perpendicular to this first pivot 55 direction and positions with this first pivot 55 of packing.
nullAnd this second cloth conveying teeth 54 secure bond is on this second cloth conveying teeth platform 52，This second cloth conveying teeth platform 52 can be arranged in the clip slot 512 of this first cloth conveying teeth platform 51 by D2 in a second direction slippingly，Then this first cloth conveying teeth 53、Second cloth conveying teeth 54 is subject to this first cloth conveying teeth platform 51 of mutual sliding sleeve and this second cloth conveying teeth platform 52 to be driven respectively，And through one end of a reservation 521 fixed knot unification bar 56 on this second cloth conveying teeth platform 52，This bar 56 D2 in a second direction extends and the other end runs through to place after this wears 515 and is positioned this and determines in groove 516，This bar 56 of the present embodiment is round bar，And this bar 56 wears placing between portion 513 and this pivot portion 511 wear one first bolster 57 and a trunnion mount 58 in space 514 in this，This bar 56 is worn the position between portion 513 and this reservation 521 then wear one second bolster 522 in this，And have the two ends of one the 3rd bolster 59 to hook respectively to be held in this reservation 521 and this support 10，This each bolster 57、522 and 59 is the structure of a spring form；And this trunnion mount 58 is to wear end 581 with the one of one end to wear in conjunction with this bar 56, the other end of this trunnion mount 58 is then a pivot 582 that D1 extends in the first direction, and the other end of the 3rd moving part 43 wears pivotly and is incorporated into this pivot 582.
nullOne differential adjusting apparatus 60，Comprise a differential adjustment axle 61、One differential adjustment seat 62、One first moving part 63、One second moving part 64、One the 3rd moving part 65，This differential adjustment axle 61 is pivotably disposed on this support 10，And one end of this differential adjustment axle 61 stretches out one end of this support 10 this differential adjustment seat 62 of secure bond，The other end of this differential adjustment seat 62 arranges an adjustment support 621，This adjustment support 621 is placed in the adjustment tank 431 of the 3rd moving part 43 slippingly，This differential adjustment axle 61 upper sleeve through fixes one end of this first moving part 63，The other end of this first moving part 63 is pivotly in conjunction with one end of this second moving part 64，The other end of this second moving part 64 is pivotly in conjunction with one end of the 3rd moving part 65，The other end then secure bond of the 3rd moving part 65 is pivotly incorporated in the differential shaft 66 on this support 10 in one and this differential shaft 66 can be subject to drive，This differential shaft 66 one end is pivotly incorporated in this support 10，The other end of this differential shaft 66 is then fixing wears differential adjustment wheel 661 and a differential knob 662，This differential outer peripheral edge regulating wheel 661 has multiple teeth portion，And this differential wheel 661 that regulates more adjoining arranges a differential restriction shell fragment 663 on this support 10，This differential restriction shell fragment 663 one end is fixed on this support 10，The other end has the teeth portion being flexibly equipped in this differential adjustment wheel 661.
It is more than structural configuration and the feature of the cloth conveying teeth differential attachment of sewing machine of the present invention, during its running, being exported power by power source drives this driving shaft 11 to rotate, and this driving shaft 11 rotates and can drive and its eccentric this third connecting rod 34 beat combined, and when this third connecting rod 34 beat also just can drive this second connecting rod 32 beat simultaneously, then the beat action of this second connecting rod 32 just can drive this work feed rocking bar 20 to rotate；And when this work feed rocking bar 20 rotates, pivot is tied and is namely produced reverse beat in the first moving part 41 two ends of this work feed rocking bar 20, one end of this second moving part 42 of pivot joint drives this second moving part 42 displacement, one end of this first cloth conveying teeth platform 51 of pivot joint then can drive this first cloth conveying teeth platform 51 displacement, and this first cloth conveying teeth platform 51 can drive this first cloth conveying teeth 53 displacement.
And also drive one end pivot of the 3rd moving part 43 with its pivot joint to put when this second moving part 42 displacement simultaneously, the other end of the 3rd moving part 43 then drives this bar 56 to translate through this trunnion mount 58, and this bar 56 can synchronize to drive this second cloth conveying teeth platform 52 to translate, this the second cloth conveying teeth platform 52 drives this second cloth conveying teeth 54 displacement, produces the smooth operation of double; two cloth conveying teeth accordingly；It is driving shaft 11 accordingly, through differential gear 40, power is transmitted the motion flow to the cloth-feeding device 50 with first cloth conveying teeth the 53, second cloth conveying teeth 54.
nullAnd such as Fig. 7、8 show the situation when the adjustment support 621 of this differential adjustment seat 62 is positioned at adjustment tank 431 middle position of the 3rd moving part 43，Now the beat at the 3rd moving part 43 two ends is to produce beat action with this adjustment support 621 for fulcrum，Now this adjustment support 621 is suitable apart from the distance at the 3rd moving part 43 two ends，Therefore the beat amplitude at the 3rd moving part 43 two ends is also suitable，Under this linkage，The beat amplitude being articulated in the first moving part 41 of this second moving part 42 also can be equivalent to the beat amplitude of the 3rd moving part 43，And by this first cloth conveying teeth platform 51 that the 3rd moving part 43 drives with this first moving part 41、Second cloth conveying teeth platform 52 also just can produce the displacement of same distance，This first cloth conveying teeth 53 and this second cloth conveying teeth 54 under this state for be close to the state not having speed difference.
And when being intended to adjust the speed difference between this first cloth conveying teeth 53 and this second cloth conveying teeth 54, rotate this differential knob 662, this differential knob 662 drives this differential shaft 66 to rotate, and when this differential shaft 66 rotates, differential adjustment on this differential shaft 66 takes turns 661 synchronous axial system this differential shell fragment 663 butted, produce to regulate significantly sense of touch and the sound through the differential elastic blocking regulating wheel 661 of this differential shell fragment 663 and this, and produce blocking when can make this differential shell fragment 663 to each teeth portion that differential should regulate wheel 661, avoid unlimited excessive adjustment, and improve the precision of adjustment accordingly.
And when this differential shaft 66 rotates, this differential shaft 66 drives this second moving part 64 through the 3rd moving part 65, and this second moving part 64 drives this first moving part 63, this first moving part 63 can drive this differential adjustment axle 61 to rotate, and when this differential adjustment axle 61 rotates, it is fixed on the differential adjustment seat 62 on this differential adjustment axle 61 i.e. beat therewith, and the adjustment support 621 of this differential adjustment seat 62 another end can sliding in the adjustment tank 431 of the 3rd moving part 43, after this adjustment support 621 changes the position being positioned at this adjustment tank 431, the pivot point representing the 3rd moving part 43 changes therewith；When this adjustment support 621 is moved to this adjustment tank 431 near this second moving part 42 part, such as Fig. 9, shown in 10, the fulcrum of the 3rd moving part 43 moves down, then the 3rd moving part 43 is articulated in the beat amplitude of oscillation of one end of this second moving part 42 and is articulated in one end of this trunnion mount 58 less than the 3rd moving part 43, this bar 56 then driven by this trunnion mount 58, second cloth conveying teeth platform 52 drives the shift length of this second cloth conveying teeth 54 will more than the shift length of the first cloth conveying teeth 53 of the first cloth conveying teeth platform 51 driven by the first moving part 41 being articulated in the second moving part 42, form the differential adjustment of the first cloth conveying teeth 53 and the second cloth conveying teeth 54 accordingly.
Otherwise, such as Figure 11, 12 show this adjustment support 621 of adjustment when being moved to this adjustment tank 431 near this trunnion mount 58 part, the fulcrum of the 3rd moving part 43 rises, then the 3rd moving part 43 is articulated in the beat amplitude of oscillation of one end of this second moving part 42 and is articulated in one end of this trunnion mount 58 more than the 3rd moving part 43, this bar 56 then driven by this trunnion mount 58, second cloth conveying teeth platform 52 drives the shift length of this second cloth conveying teeth 54 will less than the shift length of the first cloth conveying teeth 53 of the first cloth conveying teeth platform 51 driven by the first moving part 41 being articulated in the second moving part 42, form the differential adjustment of the first cloth conveying teeth 53 and the second cloth conveying teeth 54 accordingly.
In addition, due to this first cloth conveying teeth 53, the work feed amplitude of this second cloth conveying teeth 54 is to be driven control by this differential gear 40, therefore when user is intended to the work feed amplitude adjusting this first cloth conveying teeth 53 and this second cloth conveying teeth 54, just can pass through and rotate this cloth width knob 382, this cloth width knob 382 drives this cloth width axle 38 to rotate, and when this cloth width axle 38 rotates, cloth width on this cloth width axle 38 regulates wheel 381 synchronous axial system this cloth width shell fragment 383 butted, the elastic blocking regulating wheel 381 through this cloth width shell fragment 383 and this cloth width produces to regulate significantly sense of touch and the sound, and can make this cloth width shell fragment 383 to should cloth width regulate wheel 381 each teeth portion time produce blocking, avoid unlimited excessive adjustment, and improve the precision of adjustment accordingly.
And when this cloth width axle 38 rotates, this cloth width axle 38 drives this six-bar linkage 37 beat, and this six-bar linkage 37 drives the 5th connecting rod 36 beat, 5th connecting rod 36 drives this fourth link 35 to pivot, when this fourth link 35 pivots, it is placed in the slide block 341 in the chute 351 of this fourth link 35 and namely changes position with it, and after this slide block 341 changes position, the position of this second connecting rod 32 changes therewith, and with this second connecting rod 32 pivot joint and be drive this first connecting rod 31 of this work feed rocking bar 20 namely can change the amplitude of oscillation therewith, accordingly, the amplitude of oscillation of this work feed rocking bar 20 can be changed, and change the shift length of this first cloth conveying teeth 53 and this second cloth conveying teeth 54 accordingly, and change work feed amplitude.
To sum up, present invention generally provides mechanism's composition of double; two cloth conveying teeth, and confession this cloth width knob 382 of user turn or this differential knob 662 can adjust work feed amplitude, adjust the first cloth conveying teeth 53 and the second cloth conveying teeth 54 differential through the configuration of connecting rod, easy adjustment occupation mode is provided, improve ease of use, and meet user demand accordingly, improve consumer's desire to purchase and and then promote economic benefit.
Claims (9)
- null1. the cloth conveying teeth differential attachment of a sewing machine，It is characterized in that: be in the support of a sewing machine, be provided with a driving shaft driven by a power source，The power of this driving shaft transmits to having one first cloth conveying teeth through a differential gear being arranged on this support、One cloth-feeding device of one second cloth conveying teeth，This first cloth conveying teeth、Second cloth conveying teeth is one first cloth conveying teeth platform of respectively sliding sleeve mutually、One second cloth conveying teeth platform is driven，This differential gear has one first moving part、One second moving part and one the 3rd moving part，This first moving part is that this driving shaft is driven and one end of two ends respectively this first cloth conveying teeth platform of pivot joint and this second moving part，Make drive the first cloth conveying teeth platform advance or retreat and the swing of this second moving part，The other end of this second moving part is articulated in one end of the 3rd moving part，The another end of the 3rd moving part is hubbed at this second cloth conveying teeth platform and drives it to advance or retreat，And the 3rd moving part two ends between an adjustment tank is set，One adjusts support is placed in this adjustment tank slippingly，It is adjusted by this adjustment support in the upper position of the 3rd moving part，Make the 3rd moving part be second moving part interlock time，The 3rd moving part is made to drive one end of this second cloth conveying teeth platform to produce the different amplitudes of oscillation，And reach this first cloth conveying teeth platform、Second cloth conveying teeth platform and this first cloth conveying teeth、The differential change of the second cloth conveying teeth work feed amplitude.
- null2. the cloth conveying teeth differential attachment of sewing machine as claimed in claim 1，It is characterized in that: described driving shaft extends along a first direction，This first direction vertical defines a second direction，One end of this first cloth conveying teeth platform shapes a pivot portion，The other end shapes a clip slot，Position between pivot portion and this clip slot of this first cloth conveying teeth platform then shapes the portion of wearing，This pivot portion and this wear and between portion, then form a device space，This portion of wearing runs through and arranges one and wear，This pivot portion then arranges certain groove relative to this position worn，This first cloth conveying teeth platform passes through one end of one first this first moving part of pivot pivot joint extended in a first direction and the pivot portion of this first cloth conveying teeth platform，This first cloth conveying teeth is fixedly arranged on this first cloth conveying teeth platform，And these the first pivot two ends are in not concentric，The relation making this first moving part end and this pivot portion changes by rotating this first pivot；This second cloth conveying teeth is fixed on this second cloth conveying teeth platform, this the second cloth conveying teeth platform can be arranged in the clip slot of this first cloth conveying teeth platform in a second direction slippingly, and one end of this fixed bar of the second cloth conveying teeth platform, this bar extends in a second direction and the other end wear through this after penetrate this and determine in groove, and this bar wear between portion and this pivot portion in this this place and in space, wear a trunnion mount；And this trunnion mount one end arranges one and wears end and wear in conjunction with this bar, the other end of this trunnion mount is then a pivot extended in a first direction, and the other end for the 3rd moving part wears combination pivotly.
- 3. the cloth conveying teeth differential attachment of sewing machine as claimed in claim 1, it is characterised in that: arranging a bearing on described driving shaft, this first cloth conveying teeth platform is bearing in this bearing slippingly；This second cloth conveying teeth platform passes through this bar of reservation secure bond；And this bar wears placing between portion and this pivot portion wear one first bolster and this trunnion mount in space in this.
- 4. the cloth conveying teeth differential attachment of sewing machine as claimed in claim 1, it is characterised in that: described second cloth conveying teeth platform passes through this bar of reservation secure bond, and this bar is worn the position between portion and this reservation separately wear one second bolster in this.
- 5. the cloth conveying teeth differential attachment of sewing machine as claimed in claim 1, it is characterised in that: described support is pivotally arranged a work feed rocking bar and stretches out one end, and the middle section position secure bond between these the first moving part two ends is in one end of this work feed rocking bar；And this fixedly connected first connecting rod of work feed rocking bar other end, the other end of this first connecting rod links one end of this second connecting rod pivotly, the other end of this second connecting rod links one end of this third connecting rod pivotly through a string axle, and the other end of this third connecting rod is set in this driving shaft and can be driven by this driving shaft bias.
- 6. the cloth conveying teeth differential attachment of sewing machine as claimed in claim 5, it is characterized in that: one end of described string axle passes this second connecting rod, third connecting rod the slide block that is pivoted, this slide block is placed in the chute in a fourth link slippingly, one end of this fourth link arranges this chute and is pivotly incorporated on this support, the other end of this fourth link links one end of one the 5th connecting rod pivotly, one end of the other end of the 5th connecting rod then pivot joint one six-bar linkage, the other end of this six-bar linkage then fixed knot unification cloth width axle, the other end that this cloth width axle is pivotly incorporated on this support this cloth width axle is provided with a cloth width knob.
- 7. the cloth conveying teeth differential attachment of sewing machine as claimed in claim 6, it is characterized in that: a described cloth width axle separately sheathed cloth width regulates wheel, this cloth width regulates the outer peripheral edge of wheel and has multiple teeth portion, on this support, this cloth width adjoining regulates wheel and arranges a cloth width shell fragment, this cloth width shell fragment one end is fixed on this support, and the other end is flexibly equipped in this cloth width and regulates the teeth portion of wheel.
- null8. the cloth conveying teeth differential attachment of sewing machine as claimed in claim 1，It is characterized in that: described support separately arranges a differential adjusting apparatus，This differential adjusting apparatus comprises a differential adjustment axle、One differential adjustment seat、One first moving part、One second moving part、One the 3rd moving part，This differential adjustment axle is pivotably disposed on this support，And one end of this differential adjustment seat of one end secure bond of this differential adjustment axle，The other end of this differential adjustment seat is pivoted this adjustment support，This differential adjustment axle upper sleeve through fixes one end of this first moving part，The other end of this first moving part is pivotly in conjunction with one end of this second moving part，The other end of this second moving part is pivotly in conjunction with one end of the 3rd moving part，The other end then secure bond of the 3rd moving part is in a differential shaft，This differential shaft is pivotly incorporated on this support，The other end of this differential shaft is provided with a differential knob.
- 9. the cloth conveying teeth differential attachment of sewing machine as claimed in claim 8, it is characterized in that: sheathed differential adjustment of described differential shaft is taken turns, this differential outer peripheral edge regulating wheel has multiple teeth portion, and this differential adjustment wheel adjoining arranges a differential shell fragment on this support, this differential shell fragment one end is fixed on this support, and the other end is flexibly equipped in this differential teeth portion regulating wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410740554.5A CN105734841B (en) | 2014-12-08 | 2014-12-08 | The cloth conveying teeth differential attachment of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410740554.5A CN105734841B (en) | 2014-12-08 | 2014-12-08 | The cloth conveying teeth differential attachment of sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105734841A true CN105734841A (en) | 2016-07-06 |
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| TWI684689B (en) * | 2018-08-01 | 2020-02-11 | 曾賢長 | Feeding gear stabilizing mechanism of sewing machine |
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| CN105734841B (en) | 2018-04-10 |
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