CN2103583U

CN2103583U - Multifunction device for sewing machine

Info

Publication number: CN2103583U
Application number: CN 91225568
Authority: CN
Inventors: 熊生银
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-09-18
Filing date: 1991-09-18
Publication date: 1992-05-06

Abstract

The utility model relates to a multifunctional device of the domestic sewing machine. The edge locking function, the button hole locking function and the embroidery function can be additionally provided by additionally provided the multifunctional device on the machine head of the sewing machine to realize one machine with multiple functions. The multifunctional device comprises a set of transmission mechanism and a new pressing foot. The transmission mechanism mainly comprises a gear, an eccentric wheel, a universal joint, an L-shaped connection block, a long connection rod, a pressure adjustment screw and a tightly compacting rod. The new pressing foot is provided with a teeth-shaped bottom portion and lengthens, widens and thickens a feet board and is fixed on a pressing foot rod by two spring steel wires.

Description

Multifunction device for sewing machine

The utility model relates to a kind of domestic sewing machine.

Existing domestic sewing machine function singleness only can be sewed, and can not satisfy the requirement to the modern clothing processing technology.Although existing multi-purpose sewing machine is sold on the market,, need add value separately, and multi-purpose sewing machine is higher to general user's price to the users of existing Sewing machines.

The purpose of this utility model is, realizes one-machine-multi-function for domestic sewing machine and designs a kind of multi-function device, and is cheap, simple in structure, is installed on multiple functions such as the just newly-increased lock seaming of head, buttonhole, embroidery.

The utility model is that the transmission mechanism and a novel presser feet of taking turns the wheel shaft drive on one group constitute, and is installed on head of sewing machine.

Described transmission mechanism comprises:

A, left and right two blocks of wallboards ［ 1 ］, ［ 2 ］ are arranged in handpiece case right part vertical fixing, contacting on the side of left wallboard ［ 1 ］ and right wallboard ［ 2 ］, wallboard ［ 1 ］ side, a left side is equipped with one can make left wallboard ［ 1 ］ keep the spring leaf ［ 10 ］ of a displacement left, the upper left side of left side wallboard ［ 1 ］ is fixed with a trunnion axis ［ 13 ］, and the right-hand member of right wallboard ［ 2 ］ is vertical axis ［ 19 ］;

B. on the trunnion axis of described left wallboard ［ 13 ］, one eccentric wheel ［ 12 ］ and a gear wheel ［ 4 ］ are installed, gear wheel ［ 4 ］ is close to eccentric wheel ［ 12 ］ and is one, described gear wheel ［ 4 ］ and pinion ［ 3 ］ engagement that is installed on the wheel wheel shaft are set with garden ring ［ 11 ］ on the described eccentric wheel ［ 12 ］;

C, on the described right wallboard right-hand member vertical axis ［ 19 ］, one " L " shape contiguous block ［ 20 ］ is installed, the transverse arm right-hand member of this contiguous block is a universal joint ［ 5 ］, the connecting rod of universal joint, be connected described being placed on the eccentric garden ring ［ 11 ］, the perpendicular arm of described " L " shape contiguous block is had direct through groove by vertical and level from central authorities respectively, be fitted with the horizontal arm of an inverse-T-shaped contiguous block ［ 22 ］ in its straight horizontal groove, the top that the garden shape upright arm of inverse-T-shaped contiguous block stretches out the straight vertical groove, the right-hand member of a long connecting rod ［ 21 ］ is loaded on this vertical circle arm, thereby be connected as a single entity with " L " shape contiguous block, described " L " shape contiguous block erects the arm end, and being equipped with can be by the screw ［ 6 ］ of the inverse-T-shaped contiguous block front and back position of threaded adjustment on the described inverse-T-shaped contiguous block horizontal arm;

The left end of d, described long connecting rod ［ 21 ］ is connected in pressure regulating screw ［ 7 ］, pressure regulating screw ［ 7 ］ central authorities are straight-through square hole, cooperate with the square shaped top of compressor arm ［ 15 ］, at the waist of compressor arm ［ 15 ］ and the correspondence position of presser bar spring bracket ［ 16 ］, have a deep-slotted chip breaker, presser bar spring bracket screw ［ 22 ］ and compress and lay a little steel ball between the deep-slotted chip breaker;

Described novel presser feet ［ 9 ］ is that presser feet sole first half is extended, widens, thickeies, and the bottom becomes dentation, and through about the spring steel wire ［ 18 ］ of two symmetries be fixed in the presser feet foot lever and form.

The utility model has the advantages that: 1. a tractor serves several purposes, simple in structure, functional price is than low; 2. easy to use, when special process such as need not become rusty flower, lock seaming, buttonhole use,, change presser feet alive and just be reduced to the ordinary sewing machine with the cocked left wallboard of hand; 3. the stitching of lockstitching a border can transfer to very narrow, especially is fit to make the needs on lotus leaf neck, limit.

Description of drawings of the present utility model is as follows:

Fig. 1: Sewing machines multi-function device scheme of installation.

Fig. 2: left and right wallboard shape figure.

Fig. 3: when left wallboard lifts, left and right position of wallboards figure.

Fig. 4: large and small gear, eccentric wheel, eccentric wheel garden ring, universal joint shape and connection layout

Fig. 5: " L " shape contiguous block erects the arm enlarged drawing.

Fig. 6: pressure regulating screw, compressor arm, presser bar spring bracket shaped position figure.

Fig. 7: novel presser feet vertical view.

Fig. 8: novel presser feet front view.

Fig. 9: novel presser feet bottom view.

Further specify the utility model below with reference to the accompanying drawings: when carrying out ordinary sewing, cocked left wallboard ［ 1 ］, spring leaf ［ 10 ］ on the wallboard of a left side makes left wallboard and right wallboard ［ 2 ］ keep a displacement, thereby be installed on the gear wheel ［ 4 ］ and pinion ［ 3 ］ dislocation of left wallboard trunnion axis ［ 13 ］, can not mesh, this moment, Sewing machines was consistent with the ordinary sewing machine.

Lockstitching a border, buttonhole, during embroidery, put down left wallboard, allow big pinion, take off presser feet alive and change novel presser feet ［ 9 ］, step the pedal on the frame, wheel in the drive, be fixed in pinion ［ 3 ］ transmission thereupon of upper whorl axial, driven with eccentric wheel ［ 12 ］ with the gear wheel ［ 4 ］ of pinion, garden ring on the eccentric wheel has been realized horizontal displacement, drive " L " type contiguous block ［ 20 ］ transverse arm swing through universal joint ［ 5 ］, swing with perpendicular arm, through long connecting rod ［ 21 ］ transmission, pressure regulating screw ［ 7 ］, compressor arm ［ 15 ］ with one of the swing on the first from left right side, the novel presser feet ［ 9 ］ that is fixed in compressor arm ［ 15 ］ forms the oblique cloth that compresses on the first from left right side, sews " Z " shape needle tracking.

Compressor arm ［ 15 ］ upper end be squarely to cooperate rotation thereupon with pressure regulating screw ［ 7 ］.When needing to adjust foot pressure, take out long connecting rod, the rotation pressure screw gets final product.The waist of compressor arm has deep-slotted chip breaker, and a little steel ball is housed, and compressor arm can be rotated freely.

Can be during seam " Z " system molded lines mark by the institutional adjustment needle gage length of metering needle distance, and stitching width is by the screw ［ 6 ］ of the perpendicular arm end of " L " brace regulate that thus inverse-T-shaped contiguous block regulates long connecting rod step back the position realization forward.When screw ［ 6 ］ is rotated in the forward, long connecting rod is to the heading displacement, and effective swing arm of perpendicular arm shortens, long connecting rod, and the amplitude of oscillation of pressure regulating screw etc. is all corresponding less, and " Z " molded lines mark is narrower, can carry out buttonhole, lock flounce etc.In contrast when screw ［ 6 ］ reverse rotation, the direction displacement of disembarking of supporting or opposing of long connecting rod, effective swing arm of perpendicular arm increases, the increase of the amplitudes of oscillation such as long connecting rod, pressure regulating screw, " Z " molded lines mark broad can be embroidered, and lockstitches a border etc.

Claims

1, a kind of Sewing machines multi-function device is installed on the domestic sewing machine head, it is characterized in that the transmission mechanism and a novel presser feet of taking turns the wheel shaft drive on one group constitute,

Described transmission mechanism comprises:

A. in handpiece case right-hand member vertical fixing left and right two blocks of wallboards [1], [2] are arranged, contacting on the side of left wallboard [1] and right wallboard [2], wallboard [1] side, a left side is equipped with one can make left wallboard [1] keep the spring leaf [10] of a displacement left, the upper left side of left side wallboard [1] is fixed with a trunnion axis [13], and the right-hand member of right wallboard [2] is vertical axis [19];

B. on the trunnion axis of described left wallboard [13], one eccentric wheel [12] and a gear wheel [4] are installed, gear wheel [4] is close to eccentric wheel [12] and is one, and described gear wheel [4] and pinion [3] engagement that is installed on the wheel wheel shaft are set with garden ring [11] on the described eccentric wheel [12];

C, on the described right wallboard right-hand member vertical axis [19], one " L " shape contiguous block [20] is installed, the transverse arm right-hand member of this contiguous block is a universal joint [5], the connecting rod of universal joint, be connected described being placed on the eccentric garden ring [11], the perpendicular arm of described " L " shape contiguous block is had direct through groove by vertical and level from central authorities respectively, be fitted with the horizontal arm of an inverse-T-shaped contiguous block [22] in its straight horizontal groove, the top that the garden shape upright arm of inverse-T-shaped contiguous block stretches out the straight vertical groove, the right-hand member of a long connecting rod [21] is loaded on this vertical circle arm, thereby be connected as a single entity with " L " shape contiguous block, described " L " shape contiguous block erects the arm end, and being equipped with can be by the screw [6] of the inverse-T-shaped contiguous block front and back position of threaded adjustment on the described inverse-T-shaped contiguous block horizontal arm;

The left end of d, described long connecting rod [21] is connected in pressure regulating screw [7], pressure regulating screw [7] central authorities are straight-through square hole, cooperate with the square shaped top of compressor arm [15], at the waist of compressor arm [15] and the correspondence position of presser bar spring bracket [16], have a deep-slotted chip breaker, presser bar spring bracket screw [22] and compress and lay a little steel ball between the deep-slotted chip breaker;

Described novel presser feet [9] is that presser feet sole first half is extended, widens, thickeies, and the bottom becomes dentation, and through about the spring steel wire [18] of two symmetries be fixed in the presser feet foot lever and form.