CN1609315A - Round head buttonhole sewing machine and cloth piece limiter for round head buttonhole sewing machine thereof - Google Patents

Round head buttonhole sewing machine and cloth piece limiter for round head buttonhole sewing machine thereof Download PDF

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Publication number
CN1609315A
CN1609315A CN 200410085569 CN200410085569A CN1609315A CN 1609315 A CN1609315 A CN 1609315A CN 200410085569 CN200410085569 CN 200410085569 CN 200410085569 A CN200410085569 A CN 200410085569A CN 1609315 A CN1609315 A CN 1609315A
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China
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cloth sheet
round end
sewing machine
limiting member
presser feet
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CN 200410085569
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CN1609315B (en
Inventor
清水靖宏
樱井昌宏
柴田到
西村和人
铃木裕之
野村悦造
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Brother Industries Ltd
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Brother Industries Ltd
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Abstract

A eyelet holing sewing machine of the present invention is characterized in that including: feeding table for carrying articles for sewing; presser feet for pressing the articles carried on the feeding table; sewing needle and curved needle for forming eyelet holing trace in trace forming region of the articles on the feeding table; and cloth restrict member, for restricting cloth part on one side of the opening part from contacting the trace forming region of cloth part on the other side when forming eyelet holing trace on one side cloth part of the opening part in the articles for sewing.

Description

The cloth piece limiter of round end button holing sewing machine and round end button holing sewing machine thereof
Technical field
The present invention be more particularly directed on side's side cloth sheet of the peristomes such as pocket that form on object to be sewn part, to carry out the round end button holing sewing machine that the round end keyhole stitch seam makes and the cloth piece limiter of round end button holing sewing machine thereof.
Background technology
Round end button holing sewing machine with looper has usually: feeding table movably on the direction all around; Be supported on the presser bar of the pairing left and right on the described feeding table swingably; Be arranged at the presser feet of each presser bar leading section respectively; Double-chain stitch is made the looper of usefulness; And shank etc.Be provided with at the rear of described shank: the cutting knife that is used for the eyelet buttonhole perforation again; And be fixed with the buttonhole that carries out eyelet buttonhole perforation in linkage with described cutting knife and operate on the arm shape buttonhole of hammer and operate on hammer body etc.The round end button holing sewing machine of said structure, for example on the books in putting down into No. 294884 communiques of 9 years Japanese Patent Application Publications.
The round end button holing sewing machine of stating structure in the use carries out the round end keyhole stitch seam when making, on the feeding table that moves to sewing position, mounting has the object to be sewn of rear garment piece of trousers etc., kept by the position pressing position of making of pairing left and right presser feet with described object to be sewn, the beginning switch is made in the ON operation under this state.So feeding table moves according to the stitch data of the round end keyhole stitch seam of selecting in advance, by electrical motor of sewing machine looper and shank are carried out driven in synchronism simultaneously.Thus, on described object to be sewn, sew the round end keyhole stitch seam of forming by the double-chain stitch seam.
Then, be formed with left back bag (back pkt. also can be described as stern bag (Hip pocket)) on the rear panel of trousers, carrying out the round end keyhole stitch seam on the cloth sheet part of side when making under peristome of this left back bag, the operator is that the rear panel of trousers is placed on the feeding table of Sewing machines in accordance with the following methods with object to be sewn.Promptly, the operator is positioned in the downside cloth sheet of back pkt. peristome in the rear panel of trousers part (relative peristome when stretching into pocket with hand, cloth sheet part) suitable with the outside on the feeding table, be formed on its inner face and the end of peristome side state towards the rear, again peristome is enlarged, one side is with upside cloth sheet part (the cloth sheet part that relative peristome is suitable with the people side when stretching into pocket with hand of peristome, be not sewed with the round end keyhole stitch seam) stretch the below of only downside cloth sheet partly being inserted a pair of presser feet on one side towards the front layback, push maintenance with described presser feet.
In this occasion, do not sandwiched in the presser feet in order to make upside cloth sheet part, the operator must draw upside cloth sheet part with hand as much as possible towards the front.Again, when making the round end keyhole stitch seam, in order not sew up upside cloth sheet part, operator's hand must firmly partly stretch upside cloth sheet.And, when making feeding table rearward mobile in the sewing finishing of round end keyhole stitch seam, in order to stamp out eyelet buttonhole, the operator must draw upside cloth sheet part with hand as much as possible towards the front, do not contact so that suture needle does not tangle upside cloth sheet part and do not make upside cloth sheet part and buttonhole operate on hammering into shape.
Like this, in traditional round end button holing sewing machine, in the rear panel of trousers, carry out the occasion that the round end keyhole stitch seam is made on the downside cloth sheet of the back pkt. peristome part, the operator must partly limit the upside cloth sheet that is not sewed with the round end keyhole stitch seam, so make the round end keyhole stitch seam to make operation complicated, exist the problem of operation difference.
Summary of the invention
The object of the invention is, provides and can carry out the round end button holing sewing machine that the round end keyhole stitch seam is made operation simply on side's side cloth sheet part of the peristome that forms on the object to be sewn.
Round end button holing sewing machine of the present invention comprises: the feeding table that the mounting object to be sewn is used; The presser feet that the described object to be sewn of mounting on described feeding table pushed; Stitching at the described object to be sewn of mounting on described feeding table forms suture needle and the looper that formation round end keyhole stitch seam is used in the zone, it is characterized in that, be provided with cloth sheet limiting member, when this cloth sheet limiting member formed the round end keyhole stitch seam on having side's side cloth sheet part of peristome described in the described object to be sewn of preformed peristome, the opposing party's side cloth sheet of described peristome partly not being constrained to stitching with described side's side cloth sheet part, to form the zone approaching.
In this occasion, described cloth sheet limiting member can be constituted by the upside restriction board that described the opposing party's side cloth sheet is partly limited from both sides up and down and downside restriction board and to the rear end restriction portion that the back-end location of described the opposing party's side cloth sheet part limits.
Adopt said structure, when on described side's side cloth sheet part, forming the round end keyhole stitch seam, the upper-lower position of described the opposing party's side cloth sheet part and back-end location etc. are limited by cloth sheet limiting member, can prevent that the opposing party's side cloth sheet from partly approaching the zone of making of side's side cloth sheet part, so can prevent reliably that the opposing party's side cloth sheet part from being sandwiched in the presser feet or to the trouble of being brought of making of suture needle.Again, when forming the round end keyhole stitch seam, the operator does not need with hand the opposing party's side cloth sheet partly to be stretched, and can improve operation.
Again, cloth piece limiter of the present invention is arranged in the round end button holing sewing machine, it is characterized in that, has restriction portion, when the round end keyhole stitch seam was made by this restriction portion on having side's side cloth sheet part of peristome described in the described object to be sewn of preformed peristome, the opposing party's side cloth sheet of described peristome partly not being constrained to stitching with described side's side cloth sheet part, to form the zone approaching.
In this occasion, described restriction portion can be constituted by the upside restriction board that described the opposing party's side cloth sheet is partly limited from both sides up and down and downside restriction board and to the rear end restriction portion that the back-end location of described the opposing party's side cloth sheet part limits.
The simple declaration of accompanying drawing
Fig. 1 is the stereogram of representing the overall structure of the round end button holing sewing machine in one embodiment of the invention, seeing described Sewing machines from the right front.
Fig. 2 is the vertical view of feeding table.
Fig. 3 is the vertical section right side view of expression feeding table peripheral part part.
Fig. 4 is the vertical section left side view of expression feeding table peripheral part part.
Fig. 5 is for the figure of presser feet action is described.
Fig. 6 is the stereogram with the cloth sheet limiting member that takes off STA representation from presser feet.
Fig. 7 is in order to illustrate that figure, the presser feet of state after the rear panel that the trousers with back pkt. are installed is in the figure suitable with Fig. 5 when making a concession the position.
Fig. 8 is with state after the rear panel that the trousers with back pkt. are installed, suitable with Fig. 2 figure.
Fig. 9 is the figure suitable with Fig. 5 when illustrating that figure, the presser feet of state is in the pressing position position after the rear panel that the trousers with back pkt. are installed.
Figure 10 is the vertical view of rear panel with trousers of back pkt..
The specific embodiment
In order to further describe the present invention, the present invention is described with reference to the accompanying drawings.The round end button holing sewing machine of present embodiment, the a pair of cross flat board of being located at about feeding table is provided with swing pairing left and right presser feet arm freely, but the presser feet and the cloth sheet limiting member of unitary rotation are installed respectively at the leading section of described presser feet arm, and, use described round end button holing sewing machine, when forming the round end keyhole stitch seam on the cloth sheet of side's side of peristome such as the pocket part in object to be sewn, the cloth sheet of the opposing party's side of described peristome partly is subjected to the restriction of described cloth sheet limiting member.
The following describes object to be sewn.
Figure 10 is that the expression object to be sewn is the upper left of the rear panel W of trousers.Rear panel W has the left back bag P that has formed.On described left back bag P, formed peristome Wa, the part on this peristome Wa has been called upside cloth sheet part Wb, part square under the peristome Wa has been called downside garment piece part Wc by pocket mouth pipe edges.Upside cloth sheet part Wb is the cloth sheet part that is positioned at the people side when stretching into hand in the pocket P, and downside garment piece part Wc is the cloth sheet part that is positioned at the outside when stretching into hand in the pocket P.Making of round end keyhole stitch seam DN carried out on the next door of peristome Wa in downside garment piece part Wc.
In addition, " back pkt. " also can be described as " stern bag (HIP POCKET) ".
The overall structure of round end button holing sewing machine is described below with reference to Fig. 1.Round end button holing sewing machine 1 integraty ground comprises the pedestal part 2 of essentially rectangular case shape and the arm 3 that forwards extends continuously from the back quadrate part top of described pedestal part 2.Described Sewing machines 1 is positioned on the not shown sewing machine table.
Described sewing machine table is provided with: (drive source with reference to the driving mechanism of Fig. 2~Fig. 4) etc. is an electrical motor of sewing machine for driven in synchronism shank 6 and looper 8a; From the master data that multiple eyelet buttonhole keyhole is used, select property ground and select the guidance panel of usefulness; Foot-operated startup shutdown switch; And the control device of forming by micro computer (all not shown) of controlling each mechanism action.
Described arm 3 is provided with the driving of following described electrical motor of sewing machine and the main shaft 7 that rotates.In the front end bottom of described arm 3, be provided with the shank with suture needle 56 (with reference to Fig. 3, Fig. 4) that can move up and down.Though detailed icon not, described shank 6 is accepted revolving force from main shaft 7 by cam mechanism (not shown), with Rack swing and on one side up and down drive on one side.In this occasion, main shaft 7 rotations 1 circle, shank 6 carries out 2 times and moves up and down on left side swing position and right side swing position.
As depicted in figs. 1 and 2, the curved needle seat 8 with 2 looper 8as relative with described shank 6 is set on described pedestal part 2.These 2 looper 8a are by the revolving force of not shown cam mechanism acceptance from main shaft 7, with the driven in synchronism that moves up and down of shank 6.Again, shank 6 and curved needle seat 8 carry out the integraty rotation around vertical axis respectively by being located at θ direction drive motor of being made up of stepper motor in the pedestal part 2 and the rotating mechanism of being made up of gear mechanism (all not shown) on horizontal plane.
As Fig. 2~shown in Figure 4, the back quadrate part of the curved needle seat 8 in described pedestal part 2, configuration forms the cutting knife 10 that eyelet buttonhole is used.Described cutting knife 10 is installed on the erecting bed 11 dismantledly by bolt (not shown).In the upper portion of cutting knife 10, be provided with the swing buttonhole of using from the punching press that connects with described cutting knife 10 freely and operate on hammer body 12.Described buttonhole operate on the hammer body 12 leading section, be installed with can adorn the buttonhole of getting operate on the hammer 13.Buttonhole is operated on hammer body 12 and is operated on and hammer driving mechanism (not shown) into shape and drive by being located at the buttonhole of being made up of cylinder etc. in the pedestal part 2, stamp out eyelet buttonhole 10a in linkage on object to be sewn (processing cloth) with described cutting knife 10, this eyelet buttonhole 10a is made up of the eyelet buttonhole portion of circular and the foot of the linearity that links to each other with its eyelet buttonhole portion.
As Fig. 1~shown in Figure 4, facial being provided with can be placed the feeding table 15 of making object on pedestal part 2.The rectangular box shape that described feeding table 15 is thin type as a whole, the part relative with curved needle seat 8 and cutting knife 10 opened.On described feeding table 15, be provided with pairing left and right metal system cross flat board 16,17.The roughly first half of these cross flat boards 16,17 is covered by guide plate 18.
In pedestal part 2, be provided with feeding table 15 along directions X travel mechanism that directions X (left and right directions) feeding is moved, with feeding table 15 along Y direction travel mechanism (all not shown) that Y direction (fore-and-aft direction) feeding is moved.Directions X travel mechanism be the directions X feeding motor (not shown) that will form by stepper motor as drive source, Y direction travel mechanism is that the Y direction feeding motor (not shown) that will be made up of stepper motor is as drive source.
Feeding table 15 is removable on fore-and-aft direction.What the position shown in the double dot dash line among Fig. 1 was represented is that feeding table 15 is in the sewing position SP (with reference to Fig. 8), and the position shown in the solid line is represented is that feeding table 15 is in the stamping position PP (with reference to Fig. 8) at the about 60~70mm of SP rear, gap system position.
Below with reference to Fig. 2~Fig. 4 explanation object to be sewn is remained in presser feet 27,28 above the feeding table 15.
In the rearward end of right cross dull and stereotyped 16 and left cross flat board 17, the pivot fulcrum 22 that swing arm 20,21 is extended by left and right directions respectively props up piece 23 swings by pivot and supports freely.In the upper end of described swing arm 20,21, by bolt 3224a, 24b the rearward end of presser bar 24,25 is fixed respectively.At the leading section of described presser bar 24,25, use pivot support bolt 26 being rotatably mounted the fore-and-aft direction central portion of presser feet 27,28 respectively.
The right part of the described presser feet 27 in right cross flat board 16 disposes needle plate 60 and selvage guide plate 30, and the left part of the described presser feet 28 in the left cross flat board 17 disposes needle plate 61 and selvage guide plate 31.Described selvage guide plate 30,31 has fore-and-aft direction respectively and forms than long grooving hole 30a, 31a, is installed on the described cross flat board 16,17 by inserting the bolt 32 that leads in described grooving hole 30a, 31a, can carry out the position adjustments of fore-and-aft direction.Described selvage guide plate 30,31 all is that endwise skew forms the back-end location restriction 30b of portion, 31b by inciting somebody to action thereafter.The described back-end location restriction 30b of portion, 31b can position the fore-and-aft direction position of described downside garment piece part Wc by making the rearward end butt joint of downside garment piece part Wc (with reference to Figure 10).Like this, by regulating the installation site of described selvage guide plate 30,31 fore-and-aft directions, can the sewing position SP of the round end keyhole stitch seam DN among the downside garment piece part Wc be finely tuned.
The bottom of swing arm 20,21 is positioned at the inside of feeding table 15 respectively, is formed with linking part 20a, the 21b of U word sigmoid at its leading section.The connection shaft 34 that left and right directions extends in the internal configurations of feeding table 15.Fixing the upper end of supporting rod 35,36 respectively at the both ends of described connection shaft 34, near the rearward end of the length direction center of described connection shaft 34, fixing presser feet drive rod 37,38 respectively simultaneously.And the leading section of described presser feet drive rod 37,38 links with corresponding linking part 20a, 20b respectively.
Right part that is positioned at right cross flat board 16 in the pedestal part 2 and the position part that is positioned at the left part of left cross flat board 17 are disposing respectively and are pushing with cylinder 39,40.At the leading section of pushing with cylinder 39,40, insert the pivot backing pin 41 that is leading to the left and right directions extension that is subjected to feeding table 15 supportings.Pushing with cylinder 39,40 is that the center can be swung freely with pivot backing pin 41.The piston rod 39a, the 40a that push with cylinder 39,40 rearward extend from the rearward end of cylinder 39,40 respectively.Fixing block coupling member 42,43 respectively in the rearward end of described piston rod 39a, 40a.In the rearward end of described coupling member 42,43, rotationally the bottom of described supporting rod 35,36 is supported by pivot backing pin 44.
Push with the piston rod 39a of cylinder 39,40, when 40a is retracted into and the action of the presser feet 27,28 when passing in and out below with reference to Fig. 5 explanation.Among Fig. 5, represent that with solid line the described piston rod 39a that pushes with cylinder 39 is retracted into state, represents the turnover state of described piston rod 39a with double dot dash line.The action of each one when again, the arrow A 1~A3 among Fig. 5 represents piston rod 39a turnover.The described piston rod 40a that pushes with cylinder 40 also is a same structure, the Therefore, omited diagram.
As shown in Figure 5, be in when being retracted into state pushing piston rod 39a, 40a with cylinder 39,40, rearward move respectively by supporting rod 35,36 and presser feet drive rod 37,38 upper end of each swing arm 20,21.Thus, about presser feet 27,28 rise to the yielding position of top respectively, and when pushing piston rod 39a, 40a with cylinder 39,40 and be in the turnover state, as shown in Figure 3 and Figure 4, the upper end of swing arm 20,21 is forwards mobile respectively.Thus, about presser feet 27,28 rise to respectively the below pressing position, by carrying out pressing position above 60,61 pairs of cross flat boards 16,17 of needle plate.
The following describes integrated and be installed in cloth sheet limiting member 50,52 on the described presser feet 27,28.Right side cloth sheet limiting member 50 on the presser feet 27 on the left of at first explanation is located at reference to Fig. 2~Fig. 4, Fig. 6.
Described right side cloth sheet limiting member 50 is the integraty structures by 1 metallic plate is bent to form.Specifically, right side cloth sheet limiting member 50 is by being positioned at its latter half of vertical tabular 50a of pivot branch, being positioned at the tabular downside restriction board 50c of the level of first half and upside restriction board 50e constitutes.On the described pivot 50a of branch, be formed with screw hole 50b.Upside cloth sheet part Wb (with reference to Figure 10) to the peristome Wa of back pkt. P limits downside restriction board 50c from the below.Upside restriction board 50e limits from the top to described upside cloth sheet part Wb.Again, the rearward end that limits board 50e at upside is provided with the 50d of rear end restriction portion, and the 50d of this rear end restriction portion is made of the vertical wall that the rear end of upside cloth sheet part Wb is carried out position limit.
The 50d of rear end restriction portion is positioned at the place ahead of presser feet 27 front ends.Specific length is stretched out in make progress the place ahead of front end of the lateral confinement making sheet 50e of portion of the leading section of downside restriction board 50c.The right side cloth sheet limiting member 50 of said structure is installed in rotation on the leading section of presser bar 24 with presser feet 27 by inserting the pivot support bolt 26 lead in described screw hole 50b.That is, right side cloth sheet limiting member 50 rotates with presser feet 27 integrateds.
On the other hand, left side cloth sheet limiting member 52 has the same symmetrical shape of above-mentioned and right side cloth sheet limiting member 50.That is, left side cloth sheet limiting member 52 also is the integraty structure by 1 metallic plate is bent to form, and comprises the 50a of pivot branch, downside restriction board 50c, the rear end restriction 50d of portion and upside restriction board 50e with screw hole 50b.And left side cloth sheet limiting member 52 is installed in rotation on the leading section of presser bar 25 by inserting the pivot support bolt 26 lead in screw hole 50b with presser feet 28.Again, the same with right side cloth sheet limiting member 50, the 50d of rear end restriction portion of left side cloth sheet limiting member 52 is positioned at the place ahead of presser feet 28 front ends.
As shown in Figure 3 and Figure 4, when described cloth sheet limiting member 50,52 was in the state that drops to pressing position with presser feet 27,28, two cloth sheet limiting members 50,52 rose to the low lower position of suture needle 5 of uppermost position in fig-ure when being in than sewing finishing.Like this, even moved up in front and back by the upside cloth sheet part Wb of these cloth sheet limiting member 50,52 restrictions, upside cloth sheet part Wb can not tangled by suture needle 5 yet, can prevent the upside cloth sheet part Wb breakage that causes because of suture needle 5 reliably.
Again, between these cloth sheet limiting members 50,52 promptly between the upside of suture needle 5 sides restriction board 50e, 52e, the gap S (with reference to Fig. 6) with side-to-side dimensions that suture needle 5 can fully pass through is set.Like this, under the state that presser feet 27,28 rises, even feeding table 15 moves up in front and back, suture needle 5 also can be passed through cloth sheet limiting member 50,52 at cloth sheet limiting member 50,52.
The cloth sheet limiting member 50,52 of said structure is described below with reference to Fig. 1, Fig. 7 and Fig. 8.
At first, in when beginning of making of round end keyhole stitch seam DN, feeding table 15 turns to the sewing position in the place ahead shown in the double dot dash line of Fig. 1.The piston rod 39a, the 40a that respectively push with cylinder 39,40 switch to the state of being retracted into, thus, about presser feet 27,28 rise to respectively the top the yielding position.At this moment, about presser feet 27,28 between, be formed with shown in the double dot dash line of Fig. 8 stitching form regional HE, suture needle 5 is in the starting position of making that this stitching forms regional HE.
Above-mentioned make begin to prepare to finish after, the operator is placed on object to be sewn on the feeding table 15.Below rear panel W shown in Figure 10 is described as object to be sewn.
As shown in Figure 7 and Figure 8, the operator is inserted in the downside garment piece part Wc of rear panel W between selvage guide plate 30,31 and the presser feet 27,28, forms its inboard is positioned at the shape that top and peristome Wa are positioned at the rear.The operator with the hands controls into horizontal on one side on one side with stretching to left and right direction near the peristome Wa of upside cloth sheet part Wb, be positioned in the left and right sides cloth sheet limiting member 50,52 downside restriction board 50c, 52c leading section above, again the end of the peristome Wa side of upside cloth sheet part Wb is rearward moved until docking with the rear end restriction 50d of portion, 52d.Thus, upside cloth sheet part Wb is inserted between downside restriction board 50c, 52c and upside restriction board 50e, the 52e.
At this moment, the leading section that limits board 50c, 52c because of downside more forwards stretches out than the leading section that upside limits board 50e, 52e, so can not limit board 50e, 52e by the overslaugh upside, upside cloth sheet part Wb is positioned on the leading section of downside restriction board 50c, 52c.Like this, can simply upside cloth sheet part Wb be placed on the cloth sheet limiting member 50,52, can improve operation.
Then, the operator with the hands enlarges peristome Wa on one side, stretch to left and right direction near the peristome Wa with downside garment piece part Wc on one side and control into horizontally, again the end of the peristome Wa side of downside garment piece part Wc is rearward moved until docking with the back-end location restriction 30b of portion, the 31b of selvage guide plate 30,31.
Here, as shown in Figure 7, upside cloth sheet part Wb is being connected with the thin cloth Wd that downside garment piece part Wc is used by pocket.In this occasion, because of downside restriction board 50c, 52c length, so be inserted in the downside of presser feet 27,28 to the return portion at thin cloth Wd rear.
Then, the not shown presser feet step switch of operator ON operation.The result is that the piston rod 39a, the 40a that push with cylinder 39,40 switch to the turnover state, about presser feet 27,28 drop to respectively the below pressing position, Wc pushes to downside garment piece part.At this moment, because of upside restriction board 50e, 52e are arranged on close suture needle 5 one sides (inboard) that limit board 50c, 52c from downside, so as Fig. 8 and shown in Figure 9, near the part of the suture needle 5 of upside cloth sheet part Wb has been subjected to the restriction of upside restriction board 50e, 52e, can not tangled by suture needle 5.
Final then operation start, shutdown switch according to the stitch data of the round end keyhole seam of selecting in advance, sew round end keyhole stitch seam DN on the sewing position of the regulation of downside garment piece part Wc.
Thus, can obtain following effect according to present embodiment.
When making round end keyhole stitch seam DN, the mobile restriction that is subjected to the 50d of rear end restriction portion, 52d to upside cloth sheet part Wb rear, the upper-lower position of upside cloth sheet part Wb is by two restriction board 50c, 52e, 52c, 52e are limited up and down simultaneously.Upside cloth sheet part Wb keeps off in making of downside garment piece part Wc and forms regional HE.Thus, need the operator stretch the such trouble operation of upside cloth sheet part Wb towards the front layback in order making of round end keyhole stitch seam DN not caused trouble.
In addition, adopt said structure, can prevent that upside cloth sheet part Wb from being sandwiched in the presser feet, and can prevent from reliably to be sewed by suture needle.Can improve the operation of making operation significantly thus.
In addition, after on downside garment piece part Wc, sewing round end keyhole stitch seam DN, by about presser feet 27,28 state that upside cloth sheet part Wb is pressed under, even feeding table 15 has moved to the occasion of the stamping position PP (with reference to Fig. 8) at about 60~70mm rear from sewing position SP, also upside cloth sheet part Wb can be held in by about the state of cloth sheet limiting member 50,52 restrictions.Thus, when feeding table 15 was rearward mobile, suture needle 5 did not contact with upside cloth sheet part Wb, and, even after feeding table 15 has moved to stamping position PP, upside cloth sheet part Wb can be not approaching with the stamped area of eyelet buttonhole on the downside garment piece part Wc yet.
Like this, when feeding table 15 is operated on the arbitrary occasion of 13 couples of eyelet buttonhole 10a of hammer when carrying out punching press from sewing position SP when stamping position PP moves or by buttonhole, the operator does not need with hand can to improve operation for upside cloth sheet part Wb is dodged and the operation that stretches and bother like that towards the front side.
Again, on the presser feet 27,28 about a pair of cloth sheet limiting member 50,52 is arranged on respectively dismantledly, so when not needing maybe can cause trouble, cloth sheet limiting member 50,52 can be taken off.
Again, between pairing left and right cloth sheet limiting member 50,52, be provided with the gap S that suture needle 5 can be passed through, when feeding table 15 when fore-and-aft direction moves, suture needle 5 can not bump with cloth sheet limiting member 50,52 or disturb, and can improve the security of making operation.
And, cloth sheet limiting member 50,52 has been installed in the leading section of presser bar 24,25 with presser feet 27,28 by pivot support bolt 26.Thus, can effectively utilize pivot support bolt 26, be convenient on presser bar 24,25, carry out the installation of presser feet 27,28.By cloth sheet limiting member 50,52 and presser feet 27,28 integraty are installed, can guarantee the position relation of upside cloth sheet part Wb reliably with respect to presser feet 27,28 again.
In addition, the present invention is not limited to the above embodiments, such as making following distortion.
1) cloth sheet limiting member 50,52 also can limit upside board 50e, 52e, the rear end restriction 50d of portion, 52d, downside restriction board 50c, 52c form the structure that the side is seen as horizontal U word shape.Again, also the rear end can be limited the 50d of portion, 52d and omit,, get final product so long as upside restriction board 50e, 52e and downside restriction board 50c, 52c formation side are seen as the structure of horizontal V word shape in this occasion.
2) cloth sheet limiting member 50,52 is not limited to and is provided with a pair ofly, both 3,1 cloth sheet limiting member is set also.
3) cloth sheet limiting member 50,52 also upside can be limited among board 50e, 52e, the rear end restriction 50d of portion, 52d, downside restriction board 50c, the 52c any constitute by other body.
4) cloth sheet limiting member 50,52 both can directly be fixed on the presser feet 27,28, also cloth sheet limiting member 50,52 and presser feet 27,28 one can be constituted.
5) cloth sheet limiting member 50,52 also can by synthetic tree refer to metal such as propylene substrate beyond material constitute.When adopting when referring to constitute cloth sheet limiting member, also can use material transparent with the propylene substrate by synthetic tree again.
6) cloth sheet limiting member 50,52 also can adopt and downside is limited board 50c, 52c be arranged on structure than upside restriction board 50e, more close suture needle 5 one sides of 52e.
7) cloth sheet limiting member 50,52 also can adopt the structure that makes upside restriction board 50e, 52e and the rear end restriction 50d of portion, 52d give elastic force with docking (pressing position) shape mutually.When adopting this structure, can flexibly carry out clamping with the downside garment piece part Wc that downside limits between board 50c, the 52c with inserting upside restriction board 50e, 52e.
8) also can on cloth sheet limiting member 50,52, be provided for detecting the cloth sheet detecting sensor that whether upside cloth sheet part Wb has been placed, when making beginning, if upside cloth sheet part Wb is not placed on the position of regulation, then can reports this information or forbid that it makes operation.
9) the present invention variously makes the various round end button holing sewing machines that the round end keyhole stitch seam is made applicable to what have a looper.
10) in addition, the present invention can add various changes according to original technology and the known technology of tradesman.

Claims (8)

1. a round end button holing sewing machine comprises: the feeding table that the mounting object to be sewn is used; The presser feet that the described object to be sewn of mounting on described feeding table pushed; Stitching at the described object to be sewn of mounting on described feeding table forms suture needle and the looper that formation round end keyhole stitch seam is used in the zone, it is characterized in that,
Be provided with cloth sheet limiting member, when this cloth sheet limiting member formed the round end keyhole stitch seam on having side's side cloth sheet part of peristome described in the described object to be sewn of preformed peristome, the opposing party's side cloth sheet of described peristome partly not being constrained to stitching with described side's side cloth sheet part, to form the zone approaching.
2. round end button holing sewing machine as claimed in claim 1 is characterized in that described presser feet is made of a pair of presser feet,
Described cloth sheet limiting member is made of a pair of cloth sheet limiting member that is arranged on dismantledly respectively on the described a pair of presser feet.
3. round end button holing sewing machine as claimed in claim 2 is characterized in that, described a pair of presser feet has constituted the state pushed of both sides that the stitching in the object to be sewn is formed the zone,
Between described a pair of cloth sheet limiting member, be provided with the gap of passing through along with the described suture needle of mobile tolerable of described feeding table.
4. round end button holing sewing machine as claimed in claim 1 is characterized in that, described cloth sheet limiting member has: the upside restriction board and the downside restriction board that described the opposing party's side cloth sheet are partly limited from both sides up and down; And the rear end restriction portion that the back-end location of described the opposing party's side cloth sheet part is limited.
5. round end button holing sewing machine as claimed in claim 4 is characterized in that, described cloth sheet limiting member is formed by 1 metallic plate integrated, and described upside restriction board is arranged on the side than the close more described suture needle of described downside restriction board.
6. round end button holing sewing machine as claimed in claim 5 is characterized in that, the leading section of described downside restriction board stretches out to the place ahead of described upside restriction board leading section.
7. round end button holing sewing machine as claimed in claim 6 is characterized in that, has the presser bar that described presser feet is installed by the pivot fulcrum,
Described cloth sheet limiting member is installed on the described presser bar, carries out unitary rotation by described pivot fulcrum with described presser feet.
8. a cloth sheet limiting member is set in the round end button holing sewing machine, and this round end button holing sewing machine comprises: the feeding table that the mounting object to be sewn is used; The presser feet that the described object to be sewn of mounting on described feeding table pushed; Stitching at the described object to be sewn of mounting on described feeding table forms suture needle and the looper that formation round end keyhole stitch seam is used in the zone, it is characterized in that,
Be provided with restriction portion, when this restriction portion forms the round end keyhole stitch seam on having side's side cloth sheet part of peristome described in the described object to be sewn of preformed peristome, the opposing party's side cloth sheet of described peristome partly can be constrained to not with to form the zone by the stitching that is pressed in the described side's side cloth sheet part on the described feeding table approaching.
CN 200410085569 2003-10-16 2004-10-14 Round head buttonhole sewing machine and cloth piece limiter for round head buttonhole sewing machine Active CN1609315B (en)

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JP2003355836 2003-10-16
JP2003355836A JP4337495B2 (en) 2003-10-16 2003-10-16 Eyelet hole sewing machine

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101845715A (en) * 2009-03-25 2010-09-29 兄弟工业株式会社 Button holing sewing machine
CN1924143B (en) * 2005-08-30 2012-01-25 兄弟工业株式会社 Fabric presser for sewing machine and buttonhole keyhole sewing machine
CN109537186A (en) * 2017-09-22 2019-03-29 Juki株式会社 Sewn object conveying device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2175737A (en) * 1938-03-08 1939-10-10 Berman Button machine
DE19807771C1 (en) * 1998-02-24 1999-04-15 Duerkopp Adler Ag Buttonhole sewing machine
DE29912970U1 (en) * 1999-07-24 1999-09-16 Duerkopp Adler Ag Buttonhole sewing machine with a holding device for a sewing material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1924143B (en) * 2005-08-30 2012-01-25 兄弟工业株式会社 Fabric presser for sewing machine and buttonhole keyhole sewing machine
CN101845715A (en) * 2009-03-25 2010-09-29 兄弟工业株式会社 Button holing sewing machine
CN109537186A (en) * 2017-09-22 2019-03-29 Juki株式会社 Sewn object conveying device

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CN1609315B (en) 2010-06-16
JP4337495B2 (en) 2009-09-30
JP2005118244A (en) 2005-05-12

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