CN101457447B - Feed control device of sewing machine - Google Patents
Feed control device of sewing machine Download PDFInfo
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- CN101457447B CN101457447B CN2008101868232A CN200810186823A CN101457447B CN 101457447 B CN101457447 B CN 101457447B CN 2008101868232 A CN2008101868232 A CN 2008101868232A CN 200810186823 A CN200810186823 A CN 200810186823A CN 101457447 B CN101457447 B CN 101457447B
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Abstract
The invention provides a feeding adjustment mechanism of a sewing machine capable of adjusting the feeding amount and switching the feeding direction. In the feeding adjustment mechanism, the rotational feeding adjustment device comprises a vibration absorbent when switching the feeding direction. A first abutting part or second abutting part on the feeding adjustment device impacts an adjustment operation body by the rotation of the feeding adjustment device. The vibration absorbent vibrates by the transfer of the vibration of the feeding adjustment device generated by the impact and absorbs the vibration energy of the feeding adjustment device. The feeding adjustment device can effectively prevent the impulsive sound generated during switching the feeding direction when the feeding adjustment device in at approximate non-vibration state.
Description
Technical field
The present invention relates to a kind of feed regulation of Sewing machines, this feed regulation carries out the adjusting of feeding amount and the conversion of feed direction to object to be sewn.
Background technology
Sewing machines has the feeding tooth that is used to carry object to be sewn.The feeding tooth carries out reciprocating action through driving above-below direction tomorrow and the fore-and-aft direction of feed mechanism.The feeding tooth moves to the place ahead or rear when being positioned at the top position so that object to be sewn forwards or the rear carry.Sewing machines has the feed regulation of the feeding amount that is used to regulate object to be sewn.Feed regulation is regulated the feeding amount through the change of the amount of movement of the fore-and-aft direction of feeding tooth.The feed regulation that day disclosure special permission communique is put down in writing for 2006 No. 247044 comprises that the feed direction with object to be sewn converts forward or reverse feed direction switching mechanism into.Feed direction switching mechanism comprise the feeding adjusting knob, with the feed regulator and the conversion driving portion of the rotation axis butt of feeding adjusting knob.Feed regulator has first abutting part and second abutting part.When carrying out the forward feeding, first abutting part and rotation axis butt.When carrying out reverse feeding, second abutting part and rotation axis butt.The time that feed direction switching mechanism changes the reciprocating action of fore-and-aft direction through the reciprocating action with respect to the above-below direction of feeding tooth is changed the direction of feeding.
Conversion driving portion backstitches spanner through operating personnel's operation and moves.Feed regulator rotates through the action of conversion driving portion, first abutting part or second abutting part and rotation axis butt.The feeding tooth carries out the feeding action through first abutting part and rotation axis butt towards forward.The feeding tooth carries out the feeding action through second abutting part and rotation axis butt towards reverse.Feed regulator rotates for conversion direction, first abutting part or second abutting part bump rotation axis.Feed regulator produces impulsive sound once clashing into vibration, exist the problem that the impulsive sound that is produced is felt bad operating personnel.
In the invention of day disclosure special permission communique 2006 No. 247044, the back shaft of feed regulator is cut off in the way of its length direction, on cut-off parts, be provided with vibration and prevent parts.Though the impulsive sound that vibration is produced when preventing parts can prevent the conversion feed direction, feed regulator still can vibrate, thus impulsive sound prevent that effect is insufficient.
Summary of the invention
The object of the present invention is to provide a kind of feed regulation of Sewing machines of the impulsive sound that is produced can prevent to change feed direction effectively the time.
The feed regulation of the Sewing machines of the invention of technical scheme 1 comprises: regulate operating body, this adjusting operating body is operated the action of advancing and retreat through the adjusting of feeding amount; Feed regulator, this feed regulator have can with first abutting part and second abutting part of a part of butt of said adjusting operating body, and be that rotate at the center with the back shaft; Conversion driving portion, this conversion driving portion rotate said feed regulator, any butt in said first abutting part and second abutting part to said adjusting operating body; Regulate the feeding amount through the operation of said adjusting operating body; And change feed direction through the action of said conversion driving portion; Said feed regulator has vibration-absorbing body in the end of a side of leaving said first abutting part and second abutting part, the vibration when said first abutting part of this absorption of vibrations bulk absorption and second abutting part clash into said adjusting operating body.
In feed regulation of the present invention, feed regulator has vibration-absorbing body.When conversion feed direction and first abutting part or second abutting part bump are regulated operating body, the vibration that vibration-absorbing body absorbs on the feed regulator to be produced through its own vibration itself.Even first abutting part or second abutting part bump are regulated operating body, feed regulator can not vibrate yet, and therefore can prevent the generation of impulsive sound effectively, thereby removes unhappy that operating personnel feel.
In the feed regulation of the Sewing machines of the invention of technical scheme 2, said vibration-absorbing body is to constitute through on the part of said first abutting part of leaving of said feed regulator and second abutting part, being connected hammer body through elastomeric element.
On the part of leaving first abutting part and second abutting part of feed regulator, hammer body vibrates with the strain of elastomeric element, and absorbs the vibrational energy of feed regulator.The vibration of hammer body can fully be prevented the vibration of feed regulator and prevent the generation of impulsive sound.
In the feed regulation of the Sewing machines of the invention of technical scheme 3, said vibration-absorbing body is to constitute through on the part of said first abutting part of leaving of said feed regulator and second abutting part, being connected the elastomer that is provided with hammer body integratedly.
The elastomer that is provided with hammer body integratedly vibrates on the part of leaving first abutting part and second abutting part of feed regulator, and absorbs the vibrational energy of feed regulator.Elastomeric vibration can fully be prevented the vibration of feed regulator and prevent the generation of impulsive sound.The elastomer that is provided with hammer body integratedly is made up of the vibration-proof rubber of the quality with regulation or the vibration-proof rubber of imbedding hammer body.The elastomer that is provided with hammer body integratedly can easily be installed on the feed regulator.
Description of drawings
Fig. 1 is the stereogram of looking sideways from the front with Sewing machines of feed regulation of the present invention.
Fig. 2 is the stereogram of seeing from the below of feed mechanism of the Sewing machines of Fig. 1.
Fig. 3 is the action specification figure of the feeding amount adjustment mechanism of feed direction when being forward.
Fig. 4 is the action specification figure of the feeding amount adjustment mechanism of feed direction when being forward.
Fig. 5 is the action specification figure of the feeding amount adjustment mechanism of feed direction when being reverse.
Fig. 6 is the action specification figure of the feeding amount adjustment mechanism of feed direction when being reverse.
Fig. 7 is the side view with feed regulator of vibration-absorbing body.
Fig. 8 is the side view with feed regulator of vibration-absorbing body.
Fig. 9 is the side view with feed regulator of the vibration-absorbing body that changes form.
Figure 10 is the side view with feed regulator of the vibration-absorbing body that changes form.
Figure 11 is the stereogram of looking sideways from the front with the Sewing machines that backstitches spanner.
The specific embodiment
Following accompanying drawing with reference to the preferred example of expression is elaborated to the present invention.As shown in Figure 1, Sewing machines M has base 1, pillar 2 and horn 3.The form setting of pillar 2 to erect to the top from the right portions of base 1.Horn 3 is to extend to left from the top of pillar 2 with base 1 relative form.Needle plate 1a is fixed in the upper surface of the left part of base 1.
Have tangent mechanism (not shown) and rotating shuttle (not shown) etc. in base 1 inside of Sewing machines M.Rotating shuttle is installed the shuttle sleeve of coiling bottom line and is rotated.Axle 6 (with reference to Fig. 2) on horn 3 inside of Sewing machines M are provided with the form configuration of extending to left and right direction.Last axle 6 rotates through the driving of sewing machine electromotor (not shown).Last axle 6 drives needle bar drive device 9 (with reference to Fig. 2).Needle bar drive device 9 is located in the left end of horn 3.The left end supporting needle rod 5 of horn 3.Shank 5 moves back and forth towards above-below direction through the action of needle bar drive device 9.Suture needle 5a is installed on the lower end to the outstanding shank 5 in the outside of horn 3.As shown in Figure 2, be provided with the lower shaft 11 that disposes with the form of extending to left and right direction in base 1 inside of Sewing machines M.Synchronous belt (not shown) is connected lower shaft 11 with last axle 6.Lower shaft 11 synchronously rotates with the rotation of last axle 6.The left part of lower shaft 11 with after the feed mechanism 10 stated be connected.Near the pars intermedia of lower shaft 11 with after the feeding amount adjustment mechanism 35 stated be connected.
Describe in the face of feed mechanism 10 down.Feed mechanism 10 make be supported in material feeding seat 15 feeding tooth 14 towards front and back to driving with above-below direction.The object to be sewn (cloth) that 14 pairs of feeding teeth are disposed on the needle plate 1a applies carrying capacity.Feed mechanism 10 has eccentric shaft 12, the connecting rod 13 that moves up and down, front and back feed spool 16 and front and back feeding rod 17.Eccentric shaft 12 is fixed in the left part of lower shaft 11.The move up and down bottom of connecting rod 13 is connected with eccentric shaft 12 rotationally.The move up and down top of connecting rod 13 is connected with the rearward end of material feeding seat 15 rotationally.Front and back feed spool 16 and lower shaft 11 are disposed at the front side of lower shaft 11 abreast.The left end of feed spool 16 before and after front and back feeding rod 17 is fixed in.The top of front and back feeding rod 17 is connected with the leading section of material feeding seat 15 rotationally.The rotating tee of lower shaft 11 is crossed eccentric shaft 12 and is passed to material feeding seat 15 with the connecting rod 13 that moves up and down.Material feeding seat 15 is that fulcrum is swung towards above-below direction with the leading section that front and back feeding rod 17 supports.Feeding tooth 14 moves back and forth towards above-below direction through the swing of material feeding seat 15.
The right part of feed spool 16 before and after actuating strut 69 is fixed in.Actuating strut 69 is connected with lower shaft 11 through feeding amount adjustment mechanism 35.The rotating tee of lower shaft 11 is crossed feeding amount adjustment mechanism 35 and is passed to front and back feed spool 16.Front and back feed spool 16 rotates (swing) repeatedly in the angular range of being regulated by feeding amount adjustment mechanism 35.Before and after the rotation repeatedly (swing) of feed spool 16 be passed to material feeding seat 15 through front and back feeding rod 17, feeding tooth 14 towards front and back to moving back and forth.Feeding tooth 14 carries out the feeding action of forward and reverse feeding action.In the feeding action of forward, when feeding tooth 14 was positioned at the top, feeding tooth 14 moved to the rear under the state outstanding from the upper surface of needle plate 1a.When feeding tooth 14 was positioned at the below, feeding tooth 14 submerged to the state of base 1 inside at the upper surface from needle plate 1a, moves to the place ahead.14 pairs of object to be sewn that are disposed on the needle plate 1a of feeding tooth apply carrying capacity towards the rear.
In reverse feeding action, when feeding tooth 14 was positioned at the top, feeding tooth 14 moved to the place ahead under the state outstanding from the upper surface of needle plate 1a.When feeding tooth 14 was positioned at the below, feeding tooth 14 submerged to the state of base 1 inside at the upper surface from needle plate 1a, moves to the rear.14 pairs of object to be sewn that are disposed on the needle plate 1a of feeding tooth apply the carrying capacity towards the place ahead.
Employed forward feeding and reverse feeding are meant respectively object to be sewn are carried and the place ahead conveying towards the rear among Fig. 2 in explaining below.The feeding amount of forward feeding and the feeding amount of reverse feeding are regulated according to the increase and decrease of the rotational angle of front and back feed spool 16.The conversion of forward feeding and reverse feeding is through changing the time change of the rotation repeatedly (swing) of front and back feed spool 16.
Describe in the face of feeding amount adjustment mechanism 35 down.Fig. 3 to Fig. 6 is the action specification figure of feeding amount adjustment mechanism 35.Feeding amount adjustment mechanism 35 has feed direction switching mechanism 50.Feeding amount adjustment mechanism 35 constitutes feed regulation of the present invention with feed direction switching mechanism 50.Feeding amount adjustment mechanism 35 comprises feeding regulating shaft 59 and feeding control agent 64.To shown in Figure 6, feeding regulating shaft 59 is disposed between lower shaft 11 and the front and back feed spool 16, and parallel with front and back feed spool 16 with lower shaft 11 like Fig. 2.Feeding regulating shaft 59 has at its left end fixing actuating strut 61 and the second connecting rod 52 that is connected with its right-hand member.
As shown in Figure 2, feeding control agent 64 is parts that are concave shape that the end of two vertical poles parallel to each other is connected with cross bar.Like Fig. 3 and shown in Figure 5, feeding control agent 64 has back shaft 63, and this back shaft 63 protrudes in the outside of two vertical poles.Back shaft 63 is supported in base 1 with feeding control agent 64.Feeding control agent 64 is disposed between feeding regulating shaft 59 and the front and back feed spool 16.Back shaft 63 is axles parallel with feeding regulating shaft 59 and front and back feed spool 16.Feeding control agent 64 is the center swing with back shaft 63.The leading section of feeding control agent 64 (leading sections of two vertical poles) is connected with the leading section of actuating strut 61 through circular-arc connecting rod 62.Actuating strut 61 is the quarter butts that are fixed in feeding regulating shaft 59 left ends.Circular-arc connecting rod 62 comes to be connected with feeding control agent 64 rotationally through supporting pin 65.Supporting pin 65 protrudes in the inboard of two vertical poles of feeding control agent 64, and the upper end of a pair of intermediate connecting rod 66,66 of supported configurations between two vertical poles rotationally.
A pair of output connecting rod 70,70 is disposed at intermediate connecting rod 66, between 66.The bottom of output connecting rod 70,70 is come to be connected (with reference to Fig. 3 to Fig. 6) with the bottom of intermediate connecting rod 66,66 rotationally through connecting pin 67.The top of output connecting rod 70,70 is come to be connected (with reference to Fig. 3 to Fig. 6) with the end of actuating strut 69 rotationally through connecting pin 68.Actuating strut 69 is quarter butts of the right-hand member of feed spool 16 before and after being fixed in.Lower shaft 11 has input connecting rod 71, and this input connecting rod 71 and feeding control agent 64 are along the left and right directions cooperation position.The input connecting rod 71 cardinal extremity prejudicially with lower shaft 11 on chimeric.To shown in Figure 6, the front end of the input connecting rod 71 that extends towards the place ahead is connected with connecting pin 67 like Fig. 3.
The rotation of input connecting rod 71 through lower shaft 11 come forwards (direction of the arrow F in Fig. 4 and Fig. 6) and rearward (direction of the arrow R in Fig. 3 and Fig. 5) move.Import each bottom that the connecting pin 67 that is connected with its front end is passed to intermediate connecting rod 66,66 and output connecting rod 70,70 that moves through of connecting rod 71.The supporting pin 65 that is used for its upper end of the power of the connecting pin 67 of intermediate connecting rod 66,66 through being passed to its bottom from input connecting rod 71 is that swing along fore-and-aft direction at the center.
The action of intermediate connecting rod 66,66 is passed to actuating strut 69 through output connecting rod 70,70.Front and back feed spool 16 with actuating strut 69 rotates (swing) repeatedly around axle, and as stated, feeding tooth 14 carries out reciprocating action along fore-and-aft direction.
The front and back actuating quantity of feeding tooth 14 (feeding amount) is corresponding to the rotational angle of front and back feed spool 16.The rotational angle of front and back feed spool 16 changes according to the inclination attitude of feeding control agent 64.In other words, the rotational angle of front and back feed spool 16 changes according to the change in location of the supporting pin 65 that supports intermediate connecting rod 66,66.Feeding control agent 64 is connected with actuating strut 61 through circular-arc connecting rod 62.Actuating strut 61 is swung along fore-and-aft direction through the rotation of feeding regulating shaft 59.It is that the center swing changes inclination attitude that the action of feeding control agent 64 through the actuating strut 61 that transmitted by circular-arc connecting rod 62 comes with back shaft 63.Feeding amount adjustment mechanism 35 has feeding adjusting knob 21.According to the regulating quantity of feeding adjusting knob 21, feeding amount adjustment mechanism 35 rotates feeding regulating shaft 59 in little angular range.The front and back actuating quantity of feeding tooth 14 (feeding amount) is regulated through the rotation of feeding regulating shaft 59.
As shown in Figure 2, feeding adjusting knob 21 has rotation axis 21a integratedly.Be located at that (not shown) carries out chimeric in the screwed hole of threaded portion (not shown) and the antetheca of being located at pillar 2 on the rotation axis 21a of feeding adjusting knob 21.As shown in Figure 1, feeding adjusting knob 21 along the removable adjusting of fore-and-aft direction be installed on the front surface of pillar 2.Feeding adjusting knob 21 constitutes with rotation axis 21a regulates operating body.The rear end of rotation axis 21a protrudes in the inside of pillar 2.Inside at pillar 2 disposes feed regulator 22 with the form relative with the rear end of rotation axis 21a.Feed regulator 22 comes to be supported in rotationally the inside of pillar 2 through the back shaft 23 of left and right directions.Feed regulator 22 has cam surface 22a (first abutting part) and cam surface 22b (second abutting part). Cam surface 22a, 22b are to become the form setting (with reference to Fig. 7) of V font expansion on the front surface of feed regulator 22.Feed regulator 22 is that the some rear ends that just bumps against rotation axis 21a among cam surface 22a, the 22b are rotated at center one with back shaft 23.Feed regulator 22 is positioned at the top of the right part of feeding regulating shaft 59.The rear portion of feed regulator 22 is connected with second connecting rod 52 through the first connecting rod 24 that extends along the vertical direction.Second connecting rod 52 is the quarter butts that are fixed in the right part of feeding regulating shaft 59.
Operating personnel are from the front side rotating operation feeding adjusting knob 21 of Sewing machines M.Rotation axis 21a rotates through the operation of feeding adjusting knob 21, and through said threaded portion be used for move (advance and retreat action) along fore-and-aft direction.Moving of the rotation axis 21a of feed regulator 22 bases and cam surface 22a or cam surface 22b butt and be the center rotation with back shaft 23.The rotation of feed regulator 22 is passed to feeding regulating shaft 59 through first connecting rod 24 and second connecting rod 52, and feeding regulating shaft 59 rotates and the change of feeding amount.
Feed direction switching mechanism 50 is changed said forward feeding and reverse feeding through feeding regulating shaft 59 is rotated greatly.Feed direction switching mechanism 50 comprises conversion handle 53 and conversion driving portion 54.As shown in Figure 2, conversion driving portion 54 is the solenoids of below that are disposed at right side and the feeding regulating shaft 59 of lower shaft 11.Conversion driving portion 54 has forwards outstanding plunger 55.
As shown in Figure 2, conversion handle 53 is the handles that are the L font.The back shaft 51 of conversion handle 53 through left and right directions supports the intermediate portion, and be that swing at the center with back shaft 51.The lower end that extends to the conversion handle 53 of back shaft 51 belows is connected with the plunger 55 of conversion driving portion 54.The upper end that extends to the conversion handle 53 at back shaft 51 rears is connected with the second connecting rod 52 of the right part of being fixed in feeding regulating shaft 59.Conversion driving portion 54 moves through the operation of feed direction change-over switch 30.As shown in Figure 1, feed direction change-over switch 30 is disposed on the front surface of left part of horn 3.In making operation, operating personnel can easily operate feed direction change-over switch 30.
State when Fig. 3 and Fig. 4 represent the forward feeding.When the forward feeding, the plunger 55 of conversion driving portion 54 moves to the place ahead, and the lower end that will change handle 53 is urged to the place ahead.The upper end of conversion handle 53 moves to the below, and second connecting rod 52 is depressed.In Fig. 3 and Fig. 4, feeding regulating shaft 59 clockwise directions rotate.The rotation of feeding regulating shaft 59 is passed to feeding control agent 64 through actuating strut 61 and circular-arc connecting rod 62 with the direction of the arrow A among Fig. 3 and Fig. 4.Feeding control agent 64 is center swing with back shaft 63, and becomes the posture that tilts greatly to the front side of back shaft 63.The supporting pin 65 of intermediate connecting rod 66,66 upper ends is positioned at the place ahead of the connecting pin 68 of output connecting rod 70,70 upper ends.
Under the state of the forward feeding of in Fig. 3 and Fig. 4, representing, when input connecting rod 71 moves to the rear when (direction of the arrow R in Fig. 3), actuating strut 61 rotates with front and back feed spool 16 clockwise directions (direction of the arrow X in Fig. 3).Feeding tooth 14 rotates through front and back feed spool 16 clockwise directions and moves to the place ahead.When input connecting rod 71 moves to the place ahead when (direction of the arrow F in Fig. 4), actuating strut 69 and front and back feed spool 16 counterclockwise (direction of the arrow Y in Fig. 4) rotate.Feeding tooth 14 through front and back feed spool 16 counterclockwise rotate move to the rear to.
State when Fig. 5 and Fig. 6 represent reverse feeding.Like Fig. 5 and shown in Figure 6, when reverse feeding, the plunger 55 of conversion driving portion 54 moves to the rear, and the lower end drawing that will change handle 53 is to the rear.The upper end of conversion handle 53 moves to the top, and second connecting rod 52 is pulled.In Fig. 5 and Fig. 6, feeding regulating shaft 59 counterclockwise rotates.The rotation of feeding regulating shaft 59 is passed to feeding control agent 64 through actuating strut 61 and circular-arc connecting rod 62 with the direction of the arrow B among Fig. 5 and Fig. 6.Feeding control agent 64 is center swing with back shaft 63, and becomes and on back shaft 63, roughly be erect posture.The supporting pin 65 of intermediate connecting rod 66,66 upper ends is positioned at the rear of the connecting pin 68 of output connecting rod 70,70 upper ends.
Under the state of the reverse feeding of in Fig. 5 and Fig. 6, representing, when input connecting rod 71 moves to the rear when (direction of the arrow R in Fig. 5), actuating strut 69 and front and back feed spool 16 counterclockwise (direction of the arrow Y in Fig. 5) rotate.Feeding tooth 14 through front and back feed spool 16 counterclockwise rotate move to the rear to.When input connecting rod 71 moves to the place ahead when (direction of the arrow F in Fig. 6), actuating strut 69 rotates with front and back feed spool 16 clockwise directions (direction of the arrow X in Fig. 6).Feeding tooth 14 through front and back feed spool 16 clockwise directions rotate move to the place ahead to.
As stated, the input connecting rod of representing among Fig. 3 and Fig. 4 71 move forward and backward with the corresponding relation that moves forward and backward of feeding tooth 14 and Fig. 5 and Fig. 6 in the input connecting rod 71 represented move forward and backward opposite with the corresponding relation that moves forward and backward of feeding tooth 14.The rotation that moves forward and backward with lower shaft 11 of input connecting rod 71 synchronously produces.Feeding tooth 14 synchronously moves up and down with the rotation of lower shaft 11, feeding tooth 14 be positioned at the top position during, outstanding from the upper surface of needle plate 1a, and object to be sewn applied carrying capacity.The feed direction of representing among the feed direction of representing among Fig. 3 and Fig. 4 and Fig. 5 and Fig. 6 is opposite.Feed direction switching mechanism 50 makes feeding regulating shaft 59 in big angular range, change forward feeding and reverse feeding through the action of conversion driving portion 54.The rotation of the feeding regulating shaft 59 that is produced by the action of feed direction switching mechanism 50 is passed to feed regulator 22 through second connecting rod 52 and first connecting rod 24.Feed regulator 22 is that rotate at the center with back shaft 23, is arranged at the cam surface 22a of its front surface or the rotation axis 21a butt of cam surface 22b and feeding adjusting knob 21.
In feed regulation of the present invention, feed regulator 22 has vibration-absorbing body.Like Fig. 7 and shown in Figure 8, vibration-absorbing body has hammer body 7 and elastomeric element 8.As an example, hammer body 7 is the metal hammers with quality of regulation.As an example, elastomeric element 8 is the flexible flat springs that have regulation along the vertical direction.The vibration-absorbing body of in Fig. 7 and Fig. 8, representing is connected hammer body 7 in the rearward end (leaving the end of the side of cam surface 22a and cam surface 22b) of feed regulator 22 through elastomeric element 8.
The state of the feed regulator 22 when Fig. 7 representes the forward feeding.When carrying out the forward feeding, the cam surface 22a of feed regulator 22 and the rearward end butt of rotation axis 21a.The state of the feed regulator 22 when Fig. 8 representes reverse feeding.When carrying out reverse feeding, the cam surface 22b of feed regulator 22 and the rearward end butt of rotation axis 21a.When the forward feeding converts reverse feeding into, feed direction switching mechanism 50 is moved as stated.Feed regulator 22 is with back shaft 23 position that to be the rotated position from Fig. 7, represented at high speed of center represent to Fig. 8.Rotate thus, the cam surface 22a that the forward feeding is used leaves from rotation axis 21a, and reverse feeding is with cam surface 22b bump rotation axis 21a.Feed regulator 22 clashes into rotation axis 21a and vibrates.The feed regulator 22 of present embodiment portion in its back-end connects hammer body 7 through elastomeric element 8.The transfer of vibration of feed regulator 22 to hammer body 7, hammer body 7 is with elastomeric element 8 vibrations.The vibration of hammer body 7 is with absorbing because of clashing into the vibrational energy that puts on feed regulator 22 with rotation axis 21a.Even thereby feed regulator 22 and rotation axis 21a bump, feed regulator 22 can not vibrate yet, and produces impulsive sound in the time of can preventing to clash into.Under the flexible state of the quality of suitably selecting hammer body 7 for use and elastomeric element 8, can absorb the vibration of feed regulator 22 effectively.
When also being the same when reverse feeding converts the forward feeding into, hammer body 7 and elastomeric element 8 can vibrations, thereby can alleviate the vibration because of the feed regulator 22 that produces with rotation axis 21a bump.
In the time of in making the way, will the feed direction of object to be sewn being reverse (or be forward from reverse transformation) from forward conversion, operating personnel operate feed direction change-over switch 30.Conversion driving portion 54 responds the operation of feed direction change-over switches 30 and moves.Feed regulator 22 rotates at high speed, changes feed direction through cam surface 22a, 22b and the rotation axis 21a butt of feed regulator 22.As each cam surface 22a of feed regulator 22, when 22b clashes into rotation axis 21a, hammer body 7 can vibration with elastomeric element 8.The vibration of hammer body 7 can prevent the generation of impulsive sound with the absorption of vibrations because of the feed regulator 22 that produces with rotation axis 21a bump.Thereby when the conversion feed direction, can not produce impulsive sound, can eliminate operating personnel's unhappy sensation.
The change form of partial alteration has been carried out in explanation to the example of top explanation below.
1) in said example, vibration-absorbing body is to connect hammer body 7 through the rearward end at feed regulator 22 through elastomeric element 8 to constitute.The vibration-absorbing body of the change form of in Fig. 9, representing constitutes the rearward end that the elastomer 7A of the quality with regulation is fixed in feed regulator 22.As an example, elastomer 7A is a vibration-proof rubber.The rearward end that the vibration-absorbing body of the change form of in Figure 10, representing is embedded in the inside of elastomer 8A such as vibration-proof rubber with hammer body 7 and is fixed in feed regulator 22 constitutes.
2) in said example, Sewing machines M has solenoid as the conversion driving portion 54 of conversion feed direction.Conversion driving portion 54 is not limited to solenoid, also can use other drive divisions such as cylinder.
From said detailed explanation, can know that in the feed regulation of Sewing machines M of the present invention, feed regulator has vibration-absorbing body.When the conversion feed direction, feed regulator 22 rotates, and first abutting part or second abutting part bump are regulated operating body (rotation axis of feeding adjusting knob).Vibration-absorbing body is vibrated through the bump of feed regulator, and absorbs the vibrational energy of feed regulator.Feed regulator does not roughly vibrate.Thereby when the conversion feed direction, can not produce impulsive sound, can eliminate operating personnel's unhappy sensation.
Claims (3)
1. the feed regulation of a Sewing machines comprises:
Regulate operating body, this adjusting operating body is operated the action of advancing and retreat through the adjusting of feeding amount;
Feed regulator, this feed regulator have can with first abutting part and second abutting part of a part of butt of said adjusting operating body, and be that rotate at the center with the back shaft;
Conversion driving portion, this conversion driving portion rotate said feed regulator, any butt in said first abutting part and second abutting part to said adjusting operating body;
Regulate the feeding amount through the operation of said adjusting operating body, and change feed direction through the action of said conversion driving portion,
It is characterized in that: said feed regulator has vibration-absorbing body in the end of a side of leaving said first abutting part and second abutting part, the vibration when said first abutting part of this absorption of vibrations bulk absorption and second abutting part clash into said adjusting operating body.
2. the feed regulation of Sewing machines as claimed in claim 1, it is characterized in that: said vibration-absorbing body is to constitute through on the part of said first abutting part of leaving of said feed regulator and second abutting part, being connected hammer body through elastomeric element.
3. the feed regulation of Sewing machines as claimed in claim 1, it is characterized in that: said vibration-absorbing body is to constitute through on the part of said first abutting part of leaving of said feed regulator and second abutting part, being connected the elastomer that is provided with hammer body integratedly.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-321566 | 2007-12-13 | ||
| JP2007321566 | 2007-12-13 | ||
| JP2007321566A JP2009142410A (en) | 2007-12-13 | 2007-12-13 | Feeding regulating mechanism for sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101457447A CN101457447A (en) | 2009-06-17 |
| CN101457447B true CN101457447B (en) | 2012-09-26 |
Family
ID=40768558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101868232A Expired - Fee Related CN101457447B (en) | 2007-12-13 | 2008-12-12 | Feed control device of sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2009142410A (en) |
| CN (1) | CN101457447B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071543B (en) * | 2009-11-20 | 2015-06-03 | Juki株式会社 | Sewing machine |
| CN102828350A (en) * | 2012-08-27 | 2012-12-19 | 吴江市中盛机械有限公司 | Feeding adjuster for industrial sewing machine |
| CN103469499B (en) * | 2013-09-23 | 2015-04-22 | 星锐缝纫机(嘉兴)有限公司 | Fabric conveying mechanism for back tacking of sewing machine |
| CN111485333B (en) * | 2019-01-25 | 2021-09-03 | 重庆市鹏宇五金制品有限责任公司 | Novel feeding adjusting stud on sewing machine |
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|---|---|---|---|---|
| US3636900A (en) * | 1970-08-24 | 1972-01-25 | Singer Co | Control device for the work feeding mechanism of a sewing machine |
| CN1746365A (en) * | 2004-09-07 | 2006-03-15 | 大和缝纫机制造株式会社 | Sewing machine |
| JP2006247044A (en) * | 2005-03-09 | 2006-09-21 | Brother Ind Ltd | Adjusting mechanism of cloth feeding in sewing machine |
| CN1858321A (en) * | 2005-05-02 | 2006-11-08 | 株式会社森本制作所 | Pickup device of sewing machine |
-
2007
- 2007-12-13 JP JP2007321566A patent/JP2009142410A/en active Pending
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2008
- 2008-12-12 CN CN2008101868232A patent/CN101457447B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3636900A (en) * | 1970-08-24 | 1972-01-25 | Singer Co | Control device for the work feeding mechanism of a sewing machine |
| CN1746365A (en) * | 2004-09-07 | 2006-03-15 | 大和缝纫机制造株式会社 | Sewing machine |
| JP2006247044A (en) * | 2005-03-09 | 2006-09-21 | Brother Ind Ltd | Adjusting mechanism of cloth feeding in sewing machine |
| CN1858321A (en) * | 2005-05-02 | 2006-11-08 | 株式会社森本制作所 | Pickup device of sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101457447A (en) | 2009-06-17 |
| JP2009142410A (en) | 2009-07-02 |
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