CN1676721A - Cloth-pressing device of sewing machine - Google Patents
Cloth-pressing device of sewing machine Download PDFInfo
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- CN1676721A CN1676721A CN 200510063715 CN200510063715A CN1676721A CN 1676721 A CN1676721 A CN 1676721A CN 200510063715 CN200510063715 CN 200510063715 CN 200510063715 A CN200510063715 A CN 200510063715A CN 1676721 A CN1676721 A CN 1676721A
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- presser feet
- cloth
- pressure arm
- towards
- pedestal part
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Abstract
The invention provided a presser foot device of a sewing machine, comprising an actuator and a feeding means for moving a presser arm along the longitude direction of base based on the drive of the actuator, the feeding means constitutes a structure which moves the presser arm after conquering the holding force of the actuator.
Description
Technical field
The present invention relates to have the cloth-pressing device of Sewing machines of the jaw subordinate side of presser feet that is used to push processing cloth and the horn portion that this presser feet is positioned at Sewing machines.
Background technology
, reinforced in the bartacks in the past, comprising: the pedestal part that is provided with the wire loop catcher; The upright socle portion that is located on this pedestal part; The horn portion of stretching out towards the top of pedestal part from the top of this socle portion; Side-prominent down and be provided with jaw portion with the shank of above-mentioned wire loop catcher interlock at the fore-end of this horn portion.
Be provided with cloth-pressing device in these reinforcing bartacks.This cloth-pressing device has by pressure arm, pressing lever and presser feet etc.The above-mentioned pressure arm of pressing, the base end part of its socle portion side can move freely towards horizontal direction and be bearing on the pedestal part.Pressing lever can around horizontal axis rotate be supported on freely this by pressure arm on.
Presser feet is connected with the leading section of this pressing lever, under this state, rotates pressing lever, and presser feet carries out lifting by the pressing position and the dodging after this pressing position rising that are pressed on the pedestal part will process cloth between the position.Prepared multiple presser feet according to size and dimension of the reinforcing noose stitching of making etc., presser feet is replaceable.
Be used for being constructed as follows of replaceable presser feet.Installation component is fixed on the leading section by pressure arm, and the top vertical sheet of presser feet engages with the holding section longitudinally that is formed at this installation component.Under this state, the co-end of pressing lever engages with the connecting hole of top vertical sheet, does not break away from from the holding section in order to make top vertical sheet, utilizes screw that pressing plate is installed on the installation component.
When changing presser feet, unclamp screw, take off presser feet behind the dismounting pressing plate, then, the top vertical sheet of the predetermined presser feet that uses is engaged with the holding section of installation component, be installed in pressing plate on the installation component and tighten the screw end from installation component.
But, be provided with the driving mechanism that moves towards horizontal direction by pressure arm, for work feed, utilize presser feet will process cloth by the state on the cloth-feeding plate that is pressed in pedestal part under, press pressure arm and cloth-feeding plate etc. by above-mentioned drive mechanism, thereby carry processing cloth.As such driving mechanism, the formation with cam mechanism can see for details in Japan Patent openly puts down into (hereinafter referred to as patent documentation 1) 8-84878 number.In addition, Japan Patent is openly put down into to have disclosed in 9 years No. 285667 (hereinafter referred to as patent documentation 2) and a kind ofly need not be dismantled pressing plate from installation component and just can remove being connected of presser feet and depression bar, and presser feet is for the removable technology of installation component.
In traditional reinforcing bartacks, when changing presser feet, unclamp screw from installation component, unload presser feet after unloading lower platen, the top vertical sheet of the presser feet that will be scheduled to use engages with the holding section of installation component then, pressing plate is installed on the installation component and fastening with screw, in such structure, the replacing operation of presser feet bothers very much.For this reason, as patent documentation 2, if make need not from installation component dismantle pressing plate just can remove being connected of presser feet and depression bar, with presser feet removable structure on installation component, then can simplify the replacing operation of presser feet.
But usually, the jaw portion of fore-end that is arranged on the horn portion of Sewing machines stretches out towards the below, below this jaw portion, will process cloth by being pressed on the pedestal part, so installation component is positioned at the downside of jaw portion because of utilizing presser feet.When changing presser feet, presser feet is dismantled from installation component towards upside with extracting, with presser feet from the upside insertion be installed on the installation component, so above-mentioned jaw portion becomes obstacle, this jaw portion might disturb presser feet, is difficult for carrying out the replacing operation of presser feet.
For this reason, because of can moving towards horizontal direction,, make installation component be positioned at the replacing operation of carrying out presser feet than jaw portion more under the state of rear side so can consider and to push towards socle portion by pressure arm by pressure arm.But, pushing by pressure arm when socle portion moves, especially as patent documentation 1, as the driving mechanism that will move towards the length direction of pedestal part by pressure arm, when adopting cam mechanism, its resistance is very big, does not move, takes place to become flexible or the worry of breakages such as cam mechanism etc. so pressure arm exist to take place press.
Summary of the invention
The objective of the invention is to, provide a kind of energy to move the state that is not positioned at the upside of this installation component up to the jaw portion that becomes Sewing machines sleekly by pressure arm, the jaw portion of Sewing machines can not become obstacle, can carry out the foot device that presser feet is changed the Sewing machines of operation simple and reliablely.
The cloth-pressing device of Sewing machines of the present invention, be used in and have pedestal part, upright be located at the socle portion on this pedestal part, the horn portion of stretching out towards the top of pedestal part from the top of this socle portion and side-prominent and be provided with the Sewing machines of the jaw portion of shank at the fore-end of this horn portion down, cloth-pressing device has: the downside in described jaw portion will be processed cloth by the presser feet that is pressed on the pedestal part; The base end part of described socle portion side can towards horizontal direction move be supported on freely pedestal part by pressure arm; And be arranged on this by the leading section of the described jaw portion side of pressure arm and the installation component that presser feet can be installed discretely towards the top, it is characterized in that, comprise have actuator and according to the driving of this actuator with the described cloth feeding mechanism that moves towards the length direction of pedestal part by pressure arm, this cloth feeding mechanism can make the described confining force that overcomes described actuator by pressure arm move.
According to foregoing invention, the cloth feeding mechanism that will move towards the length direction of pedestal part by pressure arm, constituted to make and describedly overcome the structure that the confining force of described actuator moves by pressure arm, so when changing presser feet, by with the socle portion side shifting of presser feet, just can make installation component be positioned at socle portion side with respect to the below of the jaw portion of Sewing machines towards Sewing machines.That is, can with installation component under jaw portion and near remove.Thus, can not become under the state of obstacle in the jaw portion of Sewing machines, carry out presser feet with respect to installation component towards the detached job of top and the installation exercise of the predetermined presser feet that uses next time.
The simple declaration of accompanying drawing
Fig. 1 is the stereogram of the reinforcing bartacks of expression embodiments of the invention 1.
Fig. 2 is presser feet that bartacks are reinforced in the expression side view when descending.
Front view when Fig. 3 is the rising of expression reinforcing bartacks presser feet.
Fig. 4 is the side view of the presser feet connection status of expression cloth-pressing device.
Fig. 5 is the side view that the presser feet of expression cloth-pressing device connects disarm state.
Fig. 6 is the front view of expression cloth-pressing device.
Fig. 7 is the vertical view of expression cloth-pressing device.
Fig. 8 is the side view of expression depression bar and slide mechanism.
Fig. 9 is the side view of expression depression bar.
Figure 10 is the side view of expression fulcrum change plate.
Figure 11 is the exploded perspective view of expression pedestal part and cloth feeding mechanism.
Figure 12 is the stereogram of expression pedestal part and the 1st driving mechanism.
Figure 13 is the upward view of expression pedestal part and the 2nd driving mechanism.
Figure 14 is that the presser feet of the bartacks side view when replaceable is reinforced in expression.
Figure 15 is the side view of the cloth-pressing device of expression embodiments of the invention 2.
Figure 16 is the upward view of expression cloth-pressing device.
Figure 17 is the fixed mechanism front view partly that expression is seen from arrow 17 directions of Figure 15.
Figure 18 is the front view of presser feet when replaceable of expression cloth-pressing device.
The specific embodiment
Below, with reference to Fig. 1～Figure 14 embodiments of the invention 1 are described.Arrow Y among Fig. 1 represents that fore-and-aft direction, arrow X represent that left and right directions describes.
As Fig. 1～shown in Figure 3, reinforce bartacks 1 and comprise: pedestal part 2, the upright socle portion 3 that is located at pedestal part 2 rear portions, extend towards the place ahead from the top of socle portion 3 and the horn portion 4 of stretching out and in the side-prominent down jaw portion 5 of the fore-end of horn portion 4 towards the top of pedestal part 2.The front portion of pedestal part 2 is merely outstanding forms, also can make tubular article.
In jaw portion 5, can be provided with shank 6 up or down, suture needle 7 is installed in the bottom of this shank 6.From the supply source of reaching the standard grade of regulation is reaching the standard grade of line tube extension, supplies to this suture needle 7 (not shown) via hanging wire portion and the thread take-up tension lever stipulated.
Be provided with the rotating shuttle 8 that is equivalent to wire loop seizure mechanism in the inside of pedestal part 2.Rolling off the production line from the supply source that rolls off the production line of the inboard of this rotating shuttle 8 is that shuttle extends, shank 6 and rotating shuttle 8 interlocks, and utilizing reaches the standard grade and roll off the production line forms stitching on processing cloth.
As Fig. 1～Fig. 7, Figure 11～shown in Figure 13, the cloth-pressing device 10 that this reinforces bartacks 1 has: cloth-feeding plate 11, presser feet 12, press pressure arm 13, installing mechanism 14, presser feet elevating mechanism 15, connection cancel system 16, cloth feeding mechanism 17 etc.
Cloth-feeding plate 11 can be located at the upper surface part of pedestal part 2 movably towards horizontal direction.Presser feet 12 is to be used for will processing cloth by the member on the cloth-feeding plate 11 that is pressed in pedestal part 2 at the downside of jaw portion 5.Press pressure arm 13, the back base end part of socle portion 3 sides can move towards horizontal direction and be supported on freely on the pedestal part 2.Installing mechanism 14 is arranged on this leading section by jaw portion 5 sides of pressure arm 13, presser feet 12 is mounted to dismantled and assembled (can separate towards the top) and lifting freely.
Presser feet elevating mechanism 15 is the mechanisms that are used for lifting presser feet 12.Connect cancel system 16 and be the mechanism that is connected that is used to remove presser feet 12 and presser feet elevating mechanism 15.Cloth feeding mechanism 17 is the mechanisms that are used to push processing cloth.
As shown in Figure 4 to 7, presser feet 12 by about a pair of left presser feet 12L and the right presser feet 12R cut apart constitute.The press section 12c of the frame shape of the bottom that each presser feet 12L, 12R have top vertical sheet 12a, the brace 12b that extends from the bottom of these top vertical sheet 12a respectively and be arranged on these braces 12b.On the vertical sheet 12a of top, form connecting hole 41 respectively.
Prepared multiple presser feet 12 according to size and dimension of the reinforcing noose stitching of making etc., this presser feet 12 is replaceable.
The rake 13c that has from posterior end portion towards the top 13a of vertical portion that extends, the horizontal part 13b that extends towards the place ahead from the upper end of the 13a of vertical portion, extends towards the front lower place from the leading section of horizontal part 13b by pressure arm 13.
Leading section at rake 13c is provided with installing mechanism 14.1 pair of depression bar 31 about presser feet elevating mechanism 15 by running through the bolster 30 by the left and right directions of pressure arm 13, rotates on the horizontal part 13b that is supported on freely by pressure arm 13.
Leading section at these depression bars 31 forms co-end 42.This co-end 42 from rear side respectively be installed in installing mechanism 14 on 1 pair of connecting hole 41 of presser feet 12 engage, thus, presser feet 12 is connected with presser feet elevating mechanism 15.
3 pressing members 21 are installed on the front surface of installation component 20 by a plurality of screws 22, by this pressing member 21,1 couple of top vertical sheet 12a can not broken away from towards the place ahead but liftable is guided freely.
Be configured in the presser feet 12 on the 20a of holding section, when having removed the engaging of its connecting hole 41 and co-end 42, when being connected cancel system 16 and having removed being connected of presser feet 12 and presser feet elevating mechanism 15, then can separate towards upside from holding section 20a.After this presser feet 12 separated towards upside, the predetermined presser feet 12 that uses is configured in the holding section 20a of installation component 20 from the upside insertion, in case connect hole 41 and co-end 42 engagings (by being connected cancel system 16 being connected), with regard to replaceable presser feet 12 with presser feet 12 and presser feet elevating mechanism 15.
1 pair depression bar 31 about presser feet elevating mechanism 15 has, about 1 pair force application component 32 and rising drive division 33 (with reference to Fig. 2).
About 1 pair depression bar 31, can rotate the length direction middle part that is supported on freely by pressure arm 13 around horizontal axis by bolster 30.About 1 pair force application component 32 be with the rearward end of depression bar 31 member towards the arrow A direction application of force of Fig. 2 and Fig. 4, thus, can be used for presser feet 12 towards direction (the arrow B direction of Fig. 2, Fig. 4) application of force of pushing processing cloth.
Rising drive division 33, driven by the arrow C direction and the opposite direction thereof of not shown driving mechanism towards Fig. 2, by driving towards this arrow C direction, the protuberance 31c (afterwards chatting) at the rear portion of depression bar 31 is pushed towards the below, overcome the application of force of force application component 32 and rotate towards the opposite direction of arrow A, thus, presser feet 12 moves towards the opposite direction of arrow B, rises towards shown in Figure 3 dodging on the position.
In depression bar 31, than bolster 30 more the anterior 31a of depression bar of front side extend along press pressure arm 13, about 1 pair the upper end of the axis of guide 34 rotate respectively freely and be connected from bolster 30 towards the rearward end of 1 couple of depression bar rear portion 31b of rear extension roughly.
The 1 pair of axis of guide 34 is configured in the rear side by the 13a of vertical portion of pressure arm 13.The bottom of these axis of guides 34 is inserted respectively and is formed at by on 1 pair the installation portion 35 about the base end part of pressure arm 13.
Around each axis of guide 34, be provided with the described force application component 32 that constitutes by compression helical spring.This force application component 32 with depression bar 31b towards the top (the arrow A direction of Fig. 2) application of force.
As shown in Figure 2, described rising drive division 33 is arranged in the horn portion 4, is provided with in the lower end of this rising drive division 33 and presses the 33a of portion.Along with this rising drive division 33 moves towards the arrow C direction, the portion 33a of pressing is also driven towards the below.Thus, this is pressed the protuberance 31c that the 33a of portion will be arranged on depression bar rear portion 31b and presses towards the below.Thus, as mentioned above, depression bar 31 rotates towards the opposite direction of arrow A.Height and position for this protuberance 31c can be regulated.
As Fig. 4～shown in Figure 10, connect cancel system 16 and have 41,1 pair of co-end 42 of 1 pair of connecting hole that forms on slide mechanism 40, the presser feet 12 and the trip bolt 43 that is equivalent to fixed component.
Slide mechanism 40 be used for making 1 pair of depression bar 31 with respect to by pressure arm 13 towards front and back to slip.
1 pair of co-end 42 is formed at the leading section of 1 pair of depression bar 31 as mentioned above, can engage to engage with the connecting hole 41 of presser feet 12 with removing.The state that clamping screw 43 is used for keeping respectively state that these co-ends 42 engage with 1 pair of connecting hole 41 and engaging to remove.This clamping screw 43 can be rotated by 6 jiaos of spanners.
Slide mechanism 40 have bolster 30, with the outer surface butt of 1 pair of depression bar 31 about 1 pair supporting change plate 44 and 1 pair of clamping screw 43 (as mentioned above, this also is the composition member that connects cancel system 16).
As Fig. 8～shown in Figure 10, on each depression bar 31, form slotted hole 46a and screw tap hole 47a.In addition, form circular hole 46b relative and the slotted hole 47b relative on the supporting-point change plate 44 with screw tap hole 47a with slotted hole 46a.
Described bolster 30 inserts in the slotted hole 46a and is entrenched in the circular hole 46b.The axial region 45 of clamping screw 43 inserts in the slotted hole 47b, and the cardinal extremity screw division (not shown) of this axial region 45 screws togather with screw tap hole 47a.By this structure, depression bar 31 can move to (towards length direction) towards front and back with respect to pressing pressure arm 13.
Promptly, when take-off the brake screw 43, depression bar 31 can be with respect to bolster 30 towards front and back to slip, thus, switch on the position of Fig. 5 that the position of the Fig. 4 that can engage with connecting hole 41 in co-end 42 and engaging are removed, behind the fastening clamping screw 43, can be held in the position of Fig. 4, Fig. 5 respectively.
Thus, 1 pair depression bar 31 about presser feet elevating mechanism 15 by comprising the connection cancel system 16 of slide mechanism 40, can be removed connection with respect to presser feet 12.
As Figure 11～shown in Figure 13, cloth feeding mechanism 17 has: the 1st driving mechanism 50 that will drive to (the arrow Y direction of Figure 11) towards front and back by pressure arm 13 etc. with cloth-feeding plate 11 and presser feet 12 and the 2nd driving mechanism 60 that similarly will drive around vertical axis direction (the arrow theta direction of Figure 11) by pressure arm 13 etc. with cloth-feeding plate 11 and presser feet 12.
The 1st driving mechanism 50 has: the rack-and pinion gear mechanism 51 that is made of tooth bar 53 and pinion 55 and have as the 1st pulse motor 54, the 2 driving mechanisms 60 of actuator: the rack-and pinion gear mechanism 61 and the 2nd pulse motor 68 that are made of sector gear 67 and pinion 69.
At this, be fixed on the cloth pushing table 37 that is configured in its underpart side by the base end part of pressure arm 13, cloth-feeding plate 11 is fixed on the upper surface of this cloth pushing table 37.Window 11a is made in leading section formation at cloth-feeding plate 11.When making, suture needle 7 is passed this and is made window 11a (with reference to Figure 11, Figure 12), arrives the pin hole 2b of the needle plate 2a of pedestal part 2.Figure 11, Figure 12 have omitted most of figure by pressure arm 13.
For 50 explanations of the 1st driving mechanism.As shown in figure 11, at the integrally formed tooth bar connecting portion 36 that is equivalent to connecting portion of the base end part of cloth pushing table 37.At the base end part that is installed on the cloth pushing table 37 by pressure arm 13, about form from the recess 35a (with reference to Fig. 7) of rear side depression between 1 pair the installation portion 35, become this linking part 36 and be arranged on form in this recess 35a.By this tooth bar connecting portion 36,, be that the leading section of rack shaft 52 is connected by the base end part and the rack member of pressure arm 13 by fulcrum pin 36a.
This tooth bar connecting portion 36 is arranged on the form by left and right directions middle body in the base end part of pressure arm 13, is positioned at the upside higher than the upper level of pedestal part 2.That is, rack shaft 52 sets along fore-and-aft direction at the upside higher than the upper level of pedestal part 2.
The 1st pulse motor 54 sets in the inner transverse of socle portion 3, and the pinion 55 that is installed on its output shaft is meshing with the tooth bar 53 that is formed at rack shaft 52.Guide roller 56 is from the opposition side and rack shaft 52 butts of pinion 55.
Describe for the 2nd driving mechanism 60.Square 62 is rotatable and be co-axially mounted on the downside of cloth pushing table 37 with fulcrum pin 36a.This square 62 moves freely and engages with the gathering sill 63a of the guide plate 63 of being located at cloth pushing table 37 downsides.
The square 65 that is installed on the 64a of bar portion of oscillating structural member 64 engages with the groove 37a that is formed at cloth pushing table 37.The axial region 64b of this oscillating structural member 64 is fixed in the base end part of swing arm 66.
The 2nd pulse motor 68 is adapted to output shaft state down.Pinion 69 is installed on this output shaft, and this pinion 69 is meshing with the sector gear 67 of the leading section that is formed at swing arm 66.
The driving force of the 1st pulse motor 54 of the 1st driving mechanism 50 is passed to by pressure arm 13 by pinion 55 and rack shaft 52, will be by pressure arm 13 towards front and back to driving.
In addition, the driving force of the 2nd pulse motor 68 of the 2nd driving mechanism 60 is passed to oscillating structural member 64 by pinion 69 and swing arm 66, and this oscillating structural member 64 is driven so that its swing.The wobble drive power of this oscillating structural member 64 is passed to cloth pushing table 37 by square 65, will be that the center is towards described θ direction wobble drive with fulcrum pin 36a integratedly by pressure arm 13 grades and cloth pushing table 37.
At this, in cloth feeding mechanism 17, when the 1st pulse motor 54 of the 1st driving mechanism 50 cuts off the power supply, rack-and pinion gear mechanism 51 is remained on its position, but will be towards the rear during bulldozing operation as the client by pressure arm 13, can make rack shaft 52 overcome the confining force of the 1st pulse motor 54 and move towards the rear.
Action effect for cloth-pressing device 10 describes.
As Fig. 4 and shown in Figure 5, under presser feet 12 and state that presser feet elevating mechanism 15 is connected, 1 pair of top vertical sheet 12a lifting of presser feet 12 engages with the holding section 20a of installation component 20 freely.Presser feet 12 liftings just are installed in the state on the installing mechanism 14 freely.Again, the 1 pair of depression bar 31 is in position after sliding towards the place ahead by slide mechanism 40.That is, the co-end 42 of the leading section of 1 pair of depression bar 31 is in the state that engages with the connecting hole 41 of 1 couple of top vertical sheet 12a of presser feet 12, is the state that presser feet 12 is connected with presser feet elevating mechanism 15.Under this state, presser feet 12 carries out lifting by presser feet elevating mechanism 15.
Under Fig. 2, state shown in Figure 4, presser feet elevating mechanism 15 is in the state of presser feet 12 towards cloth-feeding plate 11 application of forces of below.That is, by 1 pair of force application component 32 with 1 pair of depression bar 31 with bolster 30 be the center towards arrow A direction rotation urging, presser feet 12 is pushed by arm cloth-feeding plate 11 and is in pressing position.Processing cloth by this presser feet 12 by being pressed on the cloth-feeding plate 11.When making, under this state, by 17 pairs of presser feets 12 of cloth feeding mechanism, press one such as pressure arm 13, depression bar 31 and drive, so that processing cloth is carried out work feed.
Carry out following action when when unloading the processing cloth of pushing by presser feet 12 or again pushing processing cloth with presser feet 12.In presser feet elevating mechanism 15, rising drive division 33 is driven towards the below, and (arrow C direction) moves towards the below to press the 33a of portion thus.Pressing the 33a of portion by this presses the protuberance 31c of 1 pair of depression bar 31 towards the below.Thus, to be the center with bolster 30 rotate towards the opposite direction of arrow A the application of force that 1 pair of depression bar 31 is overcome force application component 32, and as shown in Figure 3, presser feet 12 becomes the position of dodging after rising from pressing position.
When changing presser feet 12 under the state that cuts off the power supply of reinforcing bartacks 1, the user will promote towards the rear to operate by the state of pressure arm 13 from Fig. 1 and Fig. 2.Like this, be in the confining force that overcomes the 1st pulse motor 54 by the rack shaft 52 of pressure arm 13 annexations and move towards the rear.That is, the confining force that overcomes the 1st pulse motor 54 with the rotation of the meshing pinion 55 of rack shaft 52 is rotated.Along with this presses moving of pressure arm 13, installing mechanism 14 also moves towards the rear.This occasion, as shown in figure 14, by pressure arm 13 move towards the rear up to this installing mechanism 14 be positioned at the rear side of jaw portion 5 the position (depart from jaw portion 5 under and near the position).
At this, when will be by pressure arm 13 and installing mechanism 14 mobile towards the rear, as shown in Figure 2, also can under presser feet is positioned at the state of pressing position, carry out, but as shown in Figure 3, also can be positioned under the state of dodging the position and carry out at presser feet 12.
Then, to presser feet 12 is narrated from an example of presser feet elevating mechanism 15 separation steps.As shown in Figure 4, from the co-end 42 of 1 pair of depression bar 31 and 1 pair of state that connecting hole 41 engages of presser feet 12, unclamp the i.e. 1 pair of clamping screw 43 of composition member shared on connection cancel system 16 and the slide mechanism 40.
Then, 1 pair of depression bar 31 is slided towards the rear,, thereby remove be connected (with reference to Fig. 5) of presser feet 12 and presser feet elevating mechanism 15 co-end 42 of 1 pair of depression bar 31 connecting hole 41 engagement release from presser feet 12.
Also can at first remove being connected of presser feet 12 and presser feet elevating mechanism 15, will move the rear side that is positioned at jaw portion 5 up to installing mechanism 14 towards the rear by pressure arm 13 and installing mechanism 14 then.
Then, rise with portable presser feet 12, the holding section 20a from installation component 20 extracts so that its separation towards upside with presser feet 12.Then, the hand-held predetermined presser feet 12 that uses carries out in conjunction with (engaging) from the holding section 20a that upside inserts installation component 20.
Under the state that 1 pair of clamping screw 43 is become flexible, 1 pair of depression bar 31 is slided towards the place ahead.Like this, the co-end 42 of 1 pair of depression bar 31 engages with the connecting hole 41 of presser feet 12, and presser feet 12 is connected with presser feet elevating mechanism 15.After this, fastening 1 pair of clamping screw 43 finishes the replacing operation of presser feet 12.
Cloth-pressing device 10 according to such present embodiment, the cloth feeding mechanism 17 that moves towards the length direction of pedestal part 2 by pressure arm 13, constituted and to have overcome the i.e. structure that moves of the confining force of the 1st pulse motor 54 of actuator with described by pressure arm 13, so when changing presser feet 12, by will be by pressure arm 13 towards socle portion 3 side shiftings, the installation component 20 that can make installing mechanism 14 be positioned at socle portion 3 sides with respect to the below of jaw portion 5.
That is, can make installation component 20 depart from jaw portion 5 under and near.Thus, do not become in jaw portion 5 under the state of obstacle, can carry out presser feet with respect to installation component 20 towards the detached job of top and the installation exercise of the predetermined presser feet 12 that uses next time.
In addition, cloth feeding mechanism 17, make by pressure arm 13 by the 1st pulse motor 54 with by the 1st pulse motor 54 and to constitute towards the rack-and pinion gear mechanism 51 that the length direction of pedestal part 2 moves, so will reduce by the resistance that pressure arm 13 and installation component 20 push the rack-and pinion gear mechanism 51 when mobile towards the rear, can move sleekly and press pressure arm 13 and installation component 20.Its result can not occur can not producing loosening by the not mobile situation of pressure arm 13 yet.In addition, comprise that the 1st driving mechanism 50 grades of the cloth feeding mechanism 17 of rack-and pinion gear mechanism 51 can be not damaged, can carry out the replacing operation of presser feet 12 very simple and reliablely.
And, because with the rack shaft 52 of rack-and pinion gear mechanism 51 than the high upside of the upper level of pedestal part 2 towards front and back to setting, so can will be connected with rack shaft 52 by pressure arm 13 at the upside higher than the upper level of pedestal part 2.Because this tooth bar connecting portion 36 is arranged on left and right directions middle body by the base end part of pressure arm 13, so when will be by 20 pushings of pressure arm 13 and installation component in order to change presser feet 12 mobile, the resistance that can make the 1st pulse motor 54 and rack-and pinion gear mechanism 51 be towards playing a role near the center of gravity position by movable bodys such as pressure arm 13 and installation components 20.Thus, can move sleekly by pressure arm 13 and installation component 20 etc., and, when carrying out common making, also can will move forward by pressure arm 13 sleekly by the 1st driving mechanism 50 with rack-and pinion gear mechanism 51.
In addition, at the base end part of pressing pressure arm 13, be formed with and be used for presser feet 12 by the 1 pair of force application component 32 that is pressed in pedestal part 2 and be used to install 1 pair of installation portion 35 of the axis of guide 34, between this 1 pair of installation portion 35, form from the recess 35a of rear side depression, because in this recess 35a, be provided with tooth bar connecting portion 36, so but operation improves in enlarged base portion 2 and the spatial portion that socle portion 3 and horn portion 4 impale.And, tooth bar linking part 36 can be arranged to force application component 32 and the axis of guide 34 non-interference.
In addition, presser feet 12 liftings are installed on the installation component 20 freely, be provided with the presser feet elevating mechanism 15 of this presser feet 12 of lifting simultaneously, removing under the state that is connected of presser feet 12 and presser feet elevating mechanism 15, presser feet 12 can be separated towards the top from installation component 20, so can remove being connected of presser feet 12 and presser feet elevating mechanism 15, can change presser feet 12 reliably.
Presser feet elevating mechanism 15 has depression bar 31, and setting has the connection cancel system 16 of slide mechanism 40, connecting hole 41, co-end 42, clamping screw 43, depression bar 31 is slided by the length direction of slide mechanism 40 towards depression bar 31, the co-end 42 that is formed at the leading section of depression bar 31 is engaged with the connecting hole 41 that is formed at presser feet 12, presser feet 12 can be connected with presser feet elevating mechanism 15, presser feet 12 can be installed simply.In addition, being connected of presser feet 12 and presser feet elevating mechanism 15 from connecting hole 41 engagement release, just can be removed in co-end 42, also can dismantle presser feet 12 simply.
And, by clamping screw 43, can keep the state after state that co-end 42 engages with connecting hole 41 and engaging are removed respectively, its result can carry out the replacing operation of presser feet 12 simple and reliablely.
But, also the cloth-pressing device 10 of embodiment 1 can be carried out following partial alteration.
1) in the rack-and pinion gear mechanism 51 of the 1st driving mechanism 50,, also can not be arranged on by in the recess 35a between 1 pair of installation portion 35 of pressure arm 13 for connecting rack shaft 52 and pressing the linking part of pressure arm 13.That is, also can be at the position beyond this recess 35a, with the leading section of rack shaft 52 be connected indirectly by pressure arm 13.
2) for the 1st driving mechanism 50, so long as have the structure of rack-and pinion gear mechanism, be not limited to above-mentioned example, can constitute by various mechanisms.
3) for the 2nd driving mechanism 60, also can not adopt rack-and pinion gear mechanism 61, constitute by structure with cam mechanism.
When 4) changing presser feet 12, will move towards the rear by pressure arm 13 and installing mechanism 14 up to installing mechanism 14 be positioned at below with respect to jaw portion 5 rear side and then with presser feet 12 towards above the occasion of extracting, also can make 60 actions of the 2nd driving mechanism, installing mechanism 14 is shaken to left and right direction with respect to the below of jaw portion 5, change presser feet 12 then.
(embodiment 2)
Then, according to Figure 15～Figure 18 embodiments of the invention 2 are described.But, the member identical with embodiment 1 basic property put on identical symbol, only make simple explanation.
This cloth-pressing device 10A has the cloth-feeding plate 11 identical with above-mentioned press device 10, presser feet 12, by pressure arm 13, installing mechanism 14, presser feet elevating mechanism 15, connect cancel system 16, cloth feeding mechanism 17, also have pivot and prop up mechanism 70 and fixed mechanism 75 etc.
Pivot props up mechanism 70, have with can be around the vertical axle center by pressure arm 13 with respect to cloth pushing table 37 pivot of pivot supporting rotationally prop up mechanism 70, fixed mechanism 75 etc.
Pivot props up mechanism 70, is used for can (towards arrow D direction and the opposite direction thereof of Figure 16) carrying out the pivot supporting rotationally around the vertical axle center with respect to cloth pushing table 37 by pressure arm 13.This pivot props up mechanism 70, have towards the below standing shape be arranged on pivot backing pin 71 by the side's (for example left) of 1 pair of installation portion 35 of pressure arm 13 bottom, this pivot backing pin 71 engages with the pin-and-hole 72 that is formed at cloth pushing table 37.
Fixed mechanism 75 is that a kind of being fixed into liftedly makes by pressure arm 13 with respect to cloth pushing table 37, the mechanism that can not rotate in the common position that is positioned at horn portion 4 downsides.This fixed mechanism 75 has 1 pair the 1st bar member 76 and 1 pair the 2nd bar member 77.
1 pair the 1st bar member 76, its base end part rotate and are connected with cloth pushing table 37 freely.The 1st bar member 76 can be chimeric with slot part 13d, the 13d of the base end part side of pressing pressure arm 13.
1 pair the 2nd bar member 77, its base end part rotate and are connected with the leading section of these the 1st bar members 76 freely.The cardinal extremity face 77b of the 2nd bar member 77 forms the arc surface with respect to its center of rotation off-centre.This cardinal extremity face 77b pushes the base end part upper surface by pressure arm 13.In addition, form spanner connecting hole 77a on the 2nd bar member 77,6 jiaos of spanners that will be used for rolling brake screw 43 engage the posture of changeable the 2nd member the 77, the 1st bar member 76 with this spanner connecting hole 77a.
In the state of Figure 15, Figure 17,, be fixed into and rotate in common position (being positioned at the state of the downside of horn portion 4) by pressure arm 13 by 1 pair the 1st, the 2nd bar member 76,77.Under this state, the cardinal extremity face 77b of the 1st bar member 76 pushes the upper surface by the base end part of pressure arm 13, and the 1st, the 2nd bar member 76,77 is maintained with this posture.
From this state 6 jiaos of spanners are inserted in the spanner connecting hole 77a, shown in the double dot dash line of Figure 17, after 1 pair the 2nd bar member 77 was fallen down, pushing of cardinal extremity face 77b obtained removing.When 1 pair the 1st bar member 76 is also fallen down, break away from from the groove 13d that presses pressure arm 13, then by pressure arm 13 fixedly obtain remove.That is, allow the rotation press pressure arm 13.
When changing presser feet 12,, remove and press the fixing of pressure arm 13 from operating that at first the 2nd bar member 77 and the 1st bar member 76 are fallen down by pressure arm 13 with respect to the state (state of Figure 17) of cloth pushing table 37 in common fixed-site.Then, will be with hand by pressure arm 13 and for example arrow D direction pushing of Figure 16 of installing mechanism 14 courts, as shown in figure 18, to rotate about 20 degree around pivot backing pin 71 by pressure arm 13 and installing mechanism 14, be positioned at the right side of jaw portion 5 up to installing mechanism 14, jaw portion 5 becomes the state of the upside that is not positioned at installing mechanism 14.
At this moment, cloth pushing table 37 does not rotate, so can not be subjected to the influence of the 1st, the 2nd driving mechanism 50,60 of cloth feeding mechanism 17, allows to move by the rotation of pressure arm 13 and installing mechanism 14.
After this, identical with the foregoing description 1, carry out the replacing of presser feet 12.That is, by connecting cancel system 16, under the state that is connected of having removed presser feet 12 and presser feet elevating mechanism 15, hand-held presser feet 12 rises it, and presser feet 12 is extracted separation from the holding section 20a of installation component 20 towards upside.Then, the hand-held predetermined presser feet 12 that uses is also engaged in the holding section 20a of upside insertion installation component 20.Thereby presser feet 12 is connected with presser feet elevating mechanism 15, finishes the replacing of presser feet 12.
After will turning to original common position by pressure arm 13 and installing mechanism 14, will be fixed with respect to cloth pushing table 37 by pressure arm 13 by fixed mechanism 75.
According to this press device 10A, by rotating around the vertical axle center with respect to cloth pushing table 37, installation component 20 can be moved towards the side with respect to the below of jaw portion 5, so can not become dismounting presser feet 12 under the state of obstacle in this jaw portion 5 by pressure arm 13.Almost do not have drag effect when propping up mechanism's 70 rotations by pressure arm 13 by pivot, so can carry out this rotating operation by pressure arm 13 sleekly, its result can carry out the replacing operation of presser feet 12 simple and reliablely.
But, also the cloth-pressing device 10A of embodiment 2 can be carried out following partial alteration.
1), is not rack-and pinion gear mechanism yet, but adopts cam mechanism for the 1st, the 2nd driving mechanism 50,60.
2) as propping up mechanism 70 with respect to cloth pushing table 37 carries out the pivot supporting around the vertical axle center pivot by pressure arm 13, for example, also can adopt and to prop up mechanism from the outstanding pivot backing pin in the position beyond the installation portion 35 of cloth pushing table with the various pivots such as structure that the pin-and-hole that is formed at cloth pushing table 37 engages downwards.
3) make the fixed mechanism that can not rotate form by pressure arm 13 with respect to cloth pushing table 37 as being fixed into liftedly, also can adopt various fixed mechanisms, for example, only form patchhole at cloth pushing table 37 with by the both sides of pressure arm 13, by being inserted in this patchhole, fixes elongated fixed component, by this fixed component is dismantled to remove fixing structure etc.
4) installation component 20 is structures that presser feet 12 can be installed discretely towards the below, also can adopt by the pressure arm 13 rotatable structures that are not positioned at the state of installation component 20 downsides up to pedestal part 2.Like this structure, presser feet 12 towards below separate in the structure of changing, can carry out the replacing operation of presser feet 12 simple and reliablely.
In addition, for the cloth-pressing device 10 of embodiment 1 and the cloth-pressing device 10A of embodiment 2, as long as can implement various changes in not breaking away from aim scope of the present invention, in addition, cloth-pressing device of the present invention is also applicable to the various Sewing machiness beyond various reinforcing bartacks or the reinforcing bartacks.
Claims (9)
1. the cloth-pressing device of a Sewing machines, be used to have pedestal part, upright be located at the socle portion on this pedestal part, the horn portion of stretching out towards the top of pedestal part from the top of this socle portion and side-prominent and be provided with the Sewing machines of the jaw portion of shank at the fore-end of this horn portion down, cloth-pressing device has: the downside in described jaw portion will be processed cloth by the presser feet that is pressed on the pedestal part; The base end part of described socle portion side can towards horizontal direction move be supported on freely pedestal part by pressure arm; And be arranged on this by the leading section of the described jaw portion side of pressure arm and the installation component that presser feet can be installed discretely towards the top, it is characterized in that,
Comprise have actuator and according to the driving of this actuator with the described cloth feeding mechanism that moves towards the length direction of pedestal part by pressure arm,
This cloth feeding mechanism can make the described confining force that overcomes described actuator by pressure arm move.
2. the cloth-pressing device of Sewing machines as claimed in claim 1 is characterized in that, described cloth feeding mechanism will constitute towards the rack-and pinion gear mechanism that the length direction of pedestal part moves by pressure arm by actuator with by this actuator.
3. the cloth-pressing device of Sewing machines as claimed in claim 2 is characterized in that, the rack member of described rack-and pinion gear mechanism is setting than the length direction of the high upside of the upper level of pedestal part towards pedestal part.
4. the cloth-pressing device of Sewing machines as claimed in claim 2, it is characterized in that, with connecting the rack member of described rack-and pinion gear mechanism and pressing the linking part of pressure arm, be arranged on by width middle body vertical in the base end part of pressure arm with the length direction of pedestal part.
5. the cloth-pressing device of Sewing machines as claimed in claim 4, it is characterized in that, at the described base end part of pressing pressure arm, be formed with 1 pair of spring that presser feet is pushed towards pedestal part and the 1 pair of installation portion that is used to install the axis of guide, form between this 1 pair of installation portion from the recess of described socle portion side depression, described linking part is arranged in this recess.
6. the cloth-pressing device of Sewing machines as claimed in claim 1 is characterized in that, described presser feet lifting is installed on the installation component freely, and is provided with the presser feet elevating mechanism of this presser feet of lifting,
Having removed under described presser feet and the state that the presser feet elevating mechanism is connected, presser feet can be separated towards the top from described installation component.
7. the cloth-pressing device of Sewing machines as claimed in claim 6 is characterized in that,
Described presser feet elevating mechanism has and can rotate the depression bar that is supported on freely by the length direction middle part of pressure arm around horizontal axis,
Be provided with: with the slide mechanism of described depression bar towards its length direction slip; The connecting hole that on presser feet, forms; Remove and in co-end that the leading section of depression bar forms in order to engage with this connecting hole; Can keep this co-end state that engages with connecting hole and the fixed component that engages the state of removing respectively.
8. the cloth-pressing device of a Sewing machines, be used to have pedestal part, upright be located at the socle portion on this pedestal part, the horn portion of stretching out towards the top of pedestal part and side-prominent and be provided with the Sewing machines of the jaw portion of shank down at the fore-end of this horn portion from the top of this socle portion
Cloth-pressing device has: the downside in described jaw portion will be processed cloth by the presser feet that is pressed on the pedestal part; The base end part of described socle portion side can towards horizontal direction move be supported on freely pedestal part by pressure arm; And be arranged on this by the leading section of the described jaw portion side of pressure arm and the installation component that presser feet can be installed discretely towards the top, and it is characterized in that, comprising:
With the described cloth pushing table that is connected by the base end part of pressure arm;
Will by pressure arm can be with respect to described cloth pushing table around the vertical axle center pivot of pivot supporting rotationally prop up mechanism; And
Be fixed into liftedly and make by pressure arm with respect to described cloth pushing table, the fixed mechanism that under the state that is positioned at horn subordinate side, do not rotate,
Described pivot props up mechanism, can rotate the state that is not positioned at the upside of this installation component up to described jaw portion by pressure arm.
9. the cloth-pressing device of a Sewing machines, be used to have pedestal part, upright be located at the socle portion on this pedestal part, the horn portion of stretching out towards the top of pedestal part and side-prominent and be provided with the Sewing machines of the jaw portion of shank down at the fore-end of this horn portion from the top of this socle portion
Cloth-pressing device has: the downside in described jaw portion will be processed cloth by the presser feet that is pressed on the pedestal part; The base end part of described socle portion side can towards horizontal direction move be supported on freely pedestal part by pressure arm; And be arranged on this by the leading section of the described jaw portion side of pressure arm and the installation component that presser feet can be installed discretely towards the top, and it is characterized in that, comprising:
With the described cloth pushing table that is connected by the base end part of pressure arm;
Will by pressure arm can be with respect to described cloth pushing table around the vertical axle center pivot of pivot supporting rotationally prop up mechanism; And
Be fixed into liftedly and make by pressure arm with respect to described cloth pushing table, the fixed mechanism that under the state of the downside that is positioned at horn portion, do not rotate,
Described pivot props up mechanism, can rotate the state that is not positioned at the downside of this installation component up to described pedestal part by pressure arm.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004096542 | 2004-03-29 | ||
| JP2004096542A JP2005278857A (en) | 2004-03-29 | 2004-03-29 | Cloth presser device of sewing machine |
| JP2004-096542 | 2004-03-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1676721A true CN1676721A (en) | 2005-10-05 |
| CN1676721B CN1676721B (en) | 2010-06-09 |
Family
ID=35049448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510063715 Active CN1676721B (en) | 2004-03-29 | 2005-03-29 | Cloth-pressing device of sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2005278857A (en) |
| CN (1) | CN1676721B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042577A (en) * | 2019-05-21 | 2019-07-23 | 浙江昊国家具有限公司 | A kind of cloth production automatic sewing machine |
-
2004
- 2004-03-29 JP JP2004096542A patent/JP2005278857A/en active Pending
-
2005
- 2005-03-29 CN CN 200510063715 patent/CN1676721B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042577A (en) * | 2019-05-21 | 2019-07-23 | 浙江昊国家具有限公司 | A kind of cloth production automatic sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1676721B (en) | 2010-06-09 |
| JP2005278857A (en) | 2005-10-13 |
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