CN101845726B - Sewing machine - Google Patents
Sewing machine Download PDFInfo
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- CN101845726B CN101845726B CN 200910224982 CN200910224982A CN101845726B CN 101845726 B CN101845726 B CN 101845726B CN 200910224982 CN200910224982 CN 200910224982 CN 200910224982 A CN200910224982 A CN 200910224982A CN 101845726 B CN101845726 B CN 101845726B
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Abstract
The invention relates to a sewing machine capable of changing the distance between a main shaft and a motor. A first gear is arranged on the output shaft of the motor. A second gear is arranged on the main shaft. A synchronous belt is wound between the first gear and the second gear. A carriage is fixed at the outside of a frame. A retaining part is cylindrical, and arranged on the carriage. The retaining part rotatably holds a cylinder. The cylinder holds the motor at the inner side. The carriage holds the motor in the state that a central shaft of the retaining part is malposed with the output shaft of the motor held by the cylinder. An operator can easily adjust the distance of the output shaft of the motor and the main shaft by rotating the cylinder.
Description
Technical field
The present invention relates to a kind of Sewing machines that can change the distance between main shaft and the motor.
Background technology
In the Sewing machines that Japanese Laid-Open Patent Publication is put down in writing for 1996 No. 196769, in the machine frame external stability of Sewing machines motor is arranged.The cooling performance of the motor of the Sewing machines of this communique is higher than the Sewing machines that motor is arranged at machine frame inside.The Sewing machines of this communique connects output shaft and the main shaft of motor by synchronous belt.Therefore, compare when using V-shape belt etc. to be different from the belt of synchronous belt, the power transmission efficiency from motor to main shaft in the Sewing machines of this communique is high.The Sewing machines of this communique is not easy to produce the situation of the phase angle dislocation of the phase angle of output shaft of motor and main shaft.
The tension force of synchronous belt has influence on the life-span of synchronous belt and the transmission characteristic of power.Particularly, when the tension force of synchronous belt was high, synchronous belt wore and tore sometimes and ruptures.When the tension force of synchronous belt hanged down, synchronous belt just easily produced and jumps tooth.Jumping tooth that tooth refers to synchronous belt comes off and moves to the phenomenon of different between cog from the between cog of gear.When the tension force of synchronous belt was too weak, it is large that the noise during the synchronous belt rotation just becomes.Therefore, operating personnel need to regulate the tension force of synchronous belt exactly.The control method of tension force for example has: rotary body is pressed in method on the synchronous belt, and the output shaft of change motor and the method for the axle base between the main shaft.
Rotary body is pressed on the synchronous belt and during the method for adjustment of tonicity, between rotary body and synchronous belt, produces frictional force when adopting.When producing frictional force, the durability of synchronous belt just descends.The output shaft of change motor and the method for the axle base between the main shaft are difficult to.Especially, operating personnel are difficult to easily regulate slight distance.
Summary of the invention
The object of the present invention is to provide a kind of Sewing machines, this sewing function is by the operating personnel easily output shaft of regulating electric machine and the slight distance between the main shaft.
Technical scheme 1 described Sewing machines comprises: motor; Be arranged at the first gear on the output shaft of described motor; The main shaft that configures abreast with described output shaft; Be arranged at the second gear on the described main shaft; And around the synchronous belt that is hung between described the first gear and the second gear; Also comprise: be fixed in the carriage on the machine frame outside; Be arranged at the maintaining part cylindraceous that is on the described carriage; And rotatably kept by described maintaining part, and described motor being remained in inboard cylindrical shell, described carriage keeps described motor under the state of the output shaft sequence of the central shaft of described maintaining part and the described motor that kept by described cylindrical shell.
The cylindrical shell rotation that operating personnel keep the maintaining part of carriage.Move with respect to maintaining part the position of the output shaft of the motor that cylindrical shell keeps.Therefore, the distance between the main shaft of the output shaft of motor and Sewing machines can be regulated by rotary barrel.Operating personnel can set the tension force of synchronous belt exactly.The method of adjustment of tonicity is different from rotary body being pressed on the synchronous belt, the problem that does not exist the durability of synchronous belt to descend.
In technical scheme 2 described Sewing machiness, described cylindrical shell is cylindric, the central shaft sequence of the central shaft of its external diameter and internal diameter.Described carriage has the bracket side screw hole, and this bracket side screw hole inserts along the parallel direction of the output shaft of the described motor that keeps with described cylindrical shell for first screw, and described motor has the motor side screw insertion hole.This motor side screw insertion hole arranges coaxially with respect to described bracket side screw hole.The diameter of described motor side screw insertion hole is greater than the diameter of described bracket side screw hole.
Operating personnel can be by coming fixed motor on carriage with being tightened against in the slotting logical motor side screw insertion hole of the first screw and with it in the bracket side screw hole.During rotary barrel, the first screw and motor side screw insertion hole restrictions motor are with respect to the rotation of carriage under the state that unclamps the first screw for operating personnel.Therefore, operating personnel can be in the scope in the gap of motor side screw insertion hole, the position of the output shaft of change motor.Operating personnel can be under the state of the relation at the phase angle of the main shaft of the phase angle of the output shaft of keeping motor and Sewing machines, the distance between regulation output axle and the main shaft.
In technical scheme 3 and 4 described Sewing machiness, described maintaining part has the second screw hole.This second screw hole is along radially passing described maintaining part.Operating personnel from the outside with the second screw-driving in the second screw hole.Consequently, the second screw hole is fixed this cylindrical shell inboard the contact with cylindrical shell of maintaining part.Therefore, operating personnel can prevent that cylindrical shell is with respect to the rotation of carriage.Operating personnel can under the state of the tension force that regulates exactly synchronous belt, keep the output shaft of motor and the distance between the main shaft reliably.
In technical scheme 5 to 8 described Sewing machiness, described cylindrical shell has the flange that radially extends towards the outside, and described flange is between described motor and described carriage.Therefore, in Sewing machines, cylindrical shell can not come off from maintaining part.
The Sewing machines of technical scheme 9 also has rotatable cylindrical shell gear, and described cylindrical shell has and the tooth section of described cylindrical shell with the gear engagement in its periphery.When operating personnel for example use gear with the instrument rotary barrel, will be to applying power and make the cylindrical shell rotation with the tooth section of cylindrical shell with the gear engagement.Therefore, operating personnel's rotary barrel easily.
In the Sewing machines of technical scheme 10, be formed with recess or protuberance at described cylindrical shell.Therefore, operating personnel can come easily rotary barrel by for example engage anchor clamps on recess or protuberance.
Description of drawings
Fig. 1 is the stereoscopic figure (when lid 22 is installed) that sees from the right back of Sewing machines 1.
Fig. 2 is Sewing machines 1 right side view (when lid 22 is not installed).
Fig. 3 is the amplification stereogram of seeing from the right back of the maintaining body of motor 30.
Fig. 4 is the cutaway view of seeing from the direction of arrow along I-I line among Fig. 3.
Fig. 5 be when the distance between output shaft 31 and the main shaft 18 when the longest, see the figure of the maintaining part 27 that cylindrical shell 50 is kept from the left side of Sewing machines 1.
Fig. 6 be when the distance between output shaft 31 and the main shaft 18 for the most in short-term, see the figure of the maintaining body (coating member 39 is not installed) of motor 30 from the left side of Sewing machines 1.
Fig. 7 be when the distance between output shaft 31 and the main shaft 18 when the longest, see the figure of the maintaining body (coating member 39 is not installed) of motor 30 from the left side of Sewing machines 1.
Fig. 8 is the amplification stereogram of maintaining body of the motor 30 of variation 1.
Fig. 9 is the amplification stereogram of maintaining body of the motor 30 of variation 2.
Figure 10 is the cutaway view of maintaining body of the motor 30 of variation 3.
The specific embodiment
With reference to the accompanying drawings the Sewing machines 1 of one embodiment of the present invention described.
The overall structure that at first sees figures.1.and.2 to Sewing machines 1 describes.In the following description, the upper left side of Fig. 1 is the place ahead of the Sewing machines 1 relative with operating personnel.The lower right of Fig. 1 is the rear of Sewing machines 1.The upper right side of Fig. 1 is the left of Sewing machines 1.The lower left of Fig. 1 is the right-hand of Sewing machines 1.The left side of Fig. 2 is the place ahead of Sewing machines 1.The right side of Fig. 2 is the rear of Sewing machines 1.The paper inboard of Fig. 2 is the left of Sewing machines 1.Side is the right-hand of Sewing machines 1 in front of the paper of Fig. 2.
As shown in Figure 1, Sewing machines 1 comprises base 12 and machine frame 10.Machine frame 10 is erect and is arranged on the base 12.Machine frame 10 has column sections 13 and horn section 14.Column sections 13 is flat column, and extends from the right-hand member side direction top of base 12 upper surfaces.Horn section 14 is flat column, and the side extension left from column sections 13 tops.Horn section 14 leading sections have shank 16, and shank 16 moves back and forth under the driving of motor 30 described later (with reference to Fig. 2) up and down.Shank 16 has eedle 17 in its lower end.Horn section 14 has liftable depression bar 19 near shank 16.Depression bar 19 has presser feet 20 in its lower end.Presser feet 20 keeps processing cloth.
The column sections 13 of machine frame 10 has shuttle Winder 21 in its right flank bottom.Column sections 13 has resinous lid 22.Lid 22 is round motor 30 etc.Shuttle Winder 21 exposes to the outside of lid 22 from the hole section 23 that is formed at lid 22.
As shown in Figure 2, machine frame 10 is fixed with carriage 25 at its rear portion.Carriage 25 has a plurality of holes.A plurality of screws 29 are inserted into respectively in a plurality of holes of carriage 25.Consequently, carriage 25 is fixed on the machine frame 10.Carriage 25 is keeping motor 30.The output shaft 31 of motor 30 is parallel with respect to main shaft 18.Motor 30 is positioned at machine frame 10 outsides.Therefore, be positioned at machine frame 10 inside with motor 30 and compare the heat that is easy to emit motor 30.Output shaft 31 has cooling fan 33 from motor 30 to right-hand outstanding part at it.Have to cooling fan 33 concentric circles a plurality of blades.Output shaft 31 rotations, cooling fan 33 are just to motor 30 air-supplies.Cooling fan 33 cool motors 30.
The following describes the Poewr transmission mechanism of motor 30.Output shaft 31 is fixed with motor pulley 40 coaxially at its leading section (being the right-hand of cooling fan 33).Motor pulley 40 is cylindric, and along with the rotation of output shaft 31 is rotated.Motor pulley 40 has concavo-convex tooth section 41 at its outer peripheral face.Main shaft 18 is fixed with motor pulley 40 coaxially in handwheel 24 inboards.Belt pulley for sewing machine 44 is cylindric, and has the tooth section (not shown) identical shaped with motor pulley 40.The diameter of motor pulley 40 is identical with the diameter of belt pulley for sewing machine 44.
The synchronous belt 46 of ring-type is around being hung between motor pulley 40 and the belt pulley for sewing machine 44.Synchronous belt 46 is resins.Synchronous belt 46 has concavo-convex tooth section on the side within it.The tooth section shape of tooth section 41 shapes of motor pulley 40, the tooth section shape of belt pulley for sewing machine 44 and synchronous belt 46 all is identical.The tooth section of synchronous belt 46 is engaged in the tooth section of the tooth section 41 of motor pulley 40 and belt pulley for sewing machine 44.
In the Poewr transmission mechanism that is formed by said structure, output shaft 31 rotations of motor 30, just rotation of motor pulley 40.Motor pulley 40 rotations, belt pulley for sewing machine 44 rotates by synchronous belt 46.In the situation that belt pulley for sewing machine 44 rotations, main shaft 18 rotations.Main shaft 18 rotation, shank 16 and eedle 17 move up and down by driving mechanism.The diameter of the diameter of motor pulley 40 and belt pulley for sewing machine 44 is identical.Therefore, the rotating speed ratio of the rotating speed of the output shaft 31 of motor 30 and main shaft 18 is 1: 1.
As mentioned above, the rotating speed ratio of the rotating speed of output shaft 31 and main shaft 18 is 1: 1.Therefore, control part can easily detect according to the testing result of encoder the position of shank 16 grades.
With reference to Fig. 3 to Fig. 7, the maintaining body of motor 30 with respect to machine frame 10 described.In the explanation, the upper left side of Fig. 3 is the place ahead of Sewing machines 1 below.The lower right of Fig. 3 is the rear of Sewing machines 1.The upper right side of Fig. 3 is the left of Sewing machines 1.The lower left of Fig. 3 is the right-hand of Sewing machines 1.The left of Fig. 4 is the place ahead of Sewing machines 1.The right-hand of Fig. 4 is the rear of Sewing machines 1.The top of Fig. 4 is the left of Sewing machines 1.The below of Fig. 4 is the right-hand of Sewing machines 1.The right-hand of Fig. 5 to Fig. 7 is the place ahead of Sewing machines 1.The left of Fig. 5 to Fig. 7 is the rear of Sewing machines 1.Side is the left of Sewing machines 1 in front of the paper of Fig. 5 to Fig. 7.The paper inboard of Fig. 5 to Fig. 7 is the right-hand of Sewing machines 1.
As shown in Figure 3, carriage 25 is made of seat section 26, maintaining part 27 and gripper shoe 28.Seat section 26 is tabular, and is fixed on the machine frame 10 (with reference to Fig. 2).Seat section 26 supports maintaining part 27 and gripper shoe 28.Maintaining part 27 is cylindric.Maintaining part 27 is disposed at a little upside of the centre of a section 26 so that the axis direction of inner circumferential surface becomes the form of the left and right directions of Sewing machines 1.Gripper shoe 28 supports maintaining part 27 in the bottom of maintaining part 27 and situation that seat section 26 is connected.
Maintaining part 27 within it side face keeps cylindrical shell 50.Cylindrical shell 50 is cylindric.The external diameter of cylindrical shell 50 is consistent with the internal diameter of maintaining part 27.The internal diameter of cylindrical shell 50 is consistent with the external diameter of cylindric motor 30.Maintaining part 27 sideway swivel within it ground keeps cylindrical shell 50.Cylindrical shell 50 sideway swivel within it ground keeps motor 30.
The below describes the mechanism that makes cylindrical shell 50 rotations.Cylindrical shell 50 interval on the end of its periphery equally has four recesses 51.Recess 51 is sticked on the protuberance 56 of the anchor clamps 55 that are shaft-like.Operating personnel are sticked in protuberance 56 in any recess 51 in four recesses 51 of cylindrical shell 50.Operating personnel can be in the situation that apply power to anchor clamps 55, and easily rotary barrel 50.
The below describes the shape of cylindrical shell 50.As shown in Figure 4, cylindrical shell 50 has the barrel flange 52 of extending along the radial outward side in the end of its periphery (downside among Fig. 4).Maintaining part 27 within it side has stage portion 48.Barrel flange 52 is sticked on the stage portion 48 of maintaining part 27.
Fig. 4 and Fig. 5 represent that the distance between output shaft 31 and the main shaft 18 is the longest state.In other words, Fig. 4 and Fig. 5 represent that motor 30 is positioned at the farthest state of part of frame 10 of disembarking.The point P of Fig. 5 is the center (being the center of cylindrical shell 50 external diameters) of maintaining part 27 internal diameters.The point Q of Fig. 5 is the center of cylindrical shell 50 internal diameters.
As shown in Figure 4 and Figure 5, the radial thickness of cylindric cylindrical shell 50 is not uniform.Therefore, as shown in Figure 5, the position that is staggeredly located of the position of some P and some Q.The central shaft of cylindrical shell 50 external diameters and the central shaft sequence of internal diameter.Cylindrical shell 50 is so that the center of the output shaft 31 of motor 30 form consistent with the center Q of cylindrical shell 50 internal diameters keeps motor 30.
According to said structure, operating personnel can come the easily output shaft 31 of regulating electric machine 30 and the slight distance between the main shaft 18 by rotary barrel 50.
The below adjusts the distance to regulate and is specifically described.T among Fig. 5 is the leading section of the barrel surface of maintaining part 27 inboards.X is the distance of center Q and the fore-and-aft direction between the leading section T (being the left and right directions of Fig. 5) of output shaft 31.R is the radius of cylindrical shell 50 internal diameters.
As shown in Figure 5, when the distance X of the distance between output shaft 31 and the main shaft 18 when the longest (=Xmax) become Xmax=R+Dmax (Dmax refers to the maximum of cylindrical shell 50 thickness).
From state rotary barrel 50 shown in Figure 5, the center Q of output shaft 31 just rotates centered by P, and distance X shortens.
With cylindrical shell 50 Rotate 180 degree, distance X becomes Xmin=R+Dmin (Dmin refers to the minimum of a value of cylindrical shell 50 thickness) from state shown in Figure 5.Xmin is the beeline between output shaft 31 and the main shaft 18.
The below is to describing the mechanism fixing with respect to the position of the motor 30 of maintaining part 27.As shown in Figure 4, motor 30 has the motor flange 35 that extends along the radial outward side in the end of its periphery.The diameter of motor flange 35 is greater than the internal diameter of maintaining part 27.Therefore, operating personnel are installed on the maintaining part 27 from the left side with motor 30, and motor flange 35 will contact maintaining part 27.From the left side coating member 39 is installed on the motor 30.
As shown in Figure 5, the maintaining part 27 of carriage 25 interval on its left surface equally has three bracket side screw holes 61.As shown in Figure 6 and Figure 7, motor flange 35 has three motor side screw insertion holes 36.Three motor side screw insertion holes 36 are overlapping with the axle of three bracket side screw holes 61 respectively.The diameter of motor side screw insertion hole 36 is greater than the first screw 63 axial region diameters, and this first screw 63 is screwed in the bracket side screw hole 61.Operating personnel are installed on motor 30 on the cylindrical shell 50 when being fixed in motor 30 on the carriage 25.Operating personnel are with the position of bracket side screw hole 61 and the position alignment of motor side screw insertion hole 36.Operating personnel insert the first screw 63 in the logical packing ring (not shown), and this washer outer diameter is greater than motor side screw insertion hole 36.Operating personnel will insert the first screw 63 slotting leading in the motor side screw insertion hole 36 of leading in the packing ring.Operating personnel will insert the first screw 63 that leads in the motor side screw insertion hole 36 and be tightened against in the bracket side screw hole 61.Consequently, operating personnel can be on the left and right directions of Sewing machines 1 position of fixed motor 30.And then the output shaft 31 of operating personnel's energy fixed motor 30 and the distance between the main shaft 18 (with reference to Fig. 1).For convenience of explanation, in Fig. 6 and Fig. 7, the head of not shown the first screw 63 and packing ring only illustrate the section of the first screw 63 axial regions.
As shown in Figure 3 and Figure 4, maintaining part 27 has the second screw hole 66.The second screw hole 66 is along radially running through maintaining part 27.As shown in Figure 4, operating personnel tighten the second screw 67 in the second screw hole 66.Operating personnel are crimped on the leading section of the second screw 67 on the periphery of cylindrical shell 50.Consequently, the second screw 67 can prevent cylindrical shell 50 with respect to the rotation of maintaining part 27 and can prevent that cylindrical shell 50 from deviating from from maintaining part 27.Operating personnel can be by tightening the reliably fixing distance between output shaft 31 and the main shaft 18 of the second screw 67.
The below describes the output shaft 31 of change motor 30 and the program of the distance between the main shaft 18.The example enumerated is from the long status (with reference to Fig. 7) for short status (with reference to Fig. 6) changes to of the distance between output shaft 31 and the main shaft 18 in the explanation below.Operating personnel are at first by unscrewing or unloading the second screw 67 (with reference to Fig. 4) and remove cylindrical shell 50 fixing with respect to maintaining part 27.Operating personnel unscrew three the first screws 63.Operating personnel are under the state of unscrewing the first screw 63, with anchor clamps 55 (with reference to Fig. 3) rotary barrel 50.Be that operating personnel need not to unload the first screw 63.
Although motor 30 will be rotated along with the rotation of cylindrical shell 50, as shown in Figure 6, the first screw 63 that remains in bracket side screw hole 61 can contact the side face of the motor side screw insertion hole 36 of motor flange 35.Therefore, motor 30 can only rotate in the gap in motor side screw insertion hole 36.Thereby motor 30 and output shaft 31 only rotate trace.The cylindrical shell 50 energy rotating 360 degrees that keeping motor 30.Therefore, operating personnel can in the situation at the phase angle of the phase angle of not changing output shaft 31 and main shaft 18, only change the distance between output shaft 31 and the main shaft 18.Operating personnel can be in the situation that do not unload synchronous belt 46 from motor pulley 40 and belt pulley for sewing machine 44, the distance between change output shaft 31 and the main shaft 18.The head of the first screw 63 and packing ring (not shown) can prevent that motor 30 from deviating to Sewing machines 1 left.
As mentioned above, the output shaft 31 that is positioned at the center Q (with reference to Fig. 5) of cylindrical shell 50 internal diameters rotates centered by the center P (with reference to Fig. 5) of cylindrical shell 50 external diameters along with the rotation of cylindrical shell 50 is next.Consequently, the distance between output shaft 31 and the main shaft 18 can change.The diameter of motor side screw insertion hole 36 is greater than the diameter of the first screw 63 axial regions.Therefore, motor 30 can be in the interstice coverage of motor side screw insertion hole 36, and direction and above-below direction move forwards, backwards.As shown in Figure 7, cylindrical shell 50 Rotate 180 degree, motor 30 are located in rear.Consequently, the distance between output shaft 31 and the main shaft 18 becomes the longest, and the tension force of synchronous belt 46 becomes maximum.
As above explanation, the Sewing machines 1 of present embodiment comprises cylindrical shell 50 and carriage 25.Cylindrical shell 50 within it side keeps motor 30.Carriage 25 has cylindric maintaining part 27.Maintaining part 27 sideway swivel within it ground keeps cylindrical shell 50.The center sequence of the center P of maintaining part 27 internal diameters and the output shaft 31 of motor 30.Operating personnel remove the fixing of motor 30 and cylindrical shell 50 by unscrewing the first screw 63 and the second screw 67.Cylindrical shell 50 rotations that operating personnel keep maintaining part 27.Consequently, the position of the output shaft 31 of motor 30 can be moved.Therefore, operating personnel's distance between the main shaft 18 of the output shaft 31 of regulating electric machine 30 and Sewing machines 1 easily.And then operating personnel can set the tension force of synchronous belt 46 exactly.
Operating personnel insert the first screw 63 leads to motor side screw insertion hole 36 and is tightened against in the bracket side screw hole 61.Consequently, operating personnel can be fixed in motor 30 on the carriage 25.Therefore, operating personnel can under the state of the tension force that suitably sets synchronous belt 46, remain suitable distance with the distance between output shaft 31 and the main shaft 18.Under the state that operating personnel unscrew not unloading the first screw 63, rotary barrel 50.Consequently, operating personnel can be under the state of restrictions motor 30 with respect to the rotation of carriage 25, the position of mobile output shaft 31.Therefore, operating personnel can under the state of the relation at the phase angle of the phase angle of keeping output shaft 31 and main shaft 18, regulate the tension force of synchronous belt 46.
Operating personnel can the second screw hole 66 is interior to be prevented cylindrical shell 50 with respect to the rotation of carriage 25 and deviates from by the second screw 67 is tightened against.Therefore, operating personnel can under the state of the tension force that suitably regulates synchronous belt 46, keep the distance of output shaft 31 and main shaft 18 reliably.Operating personnel can be sticked in by the protuberance 56 with anchor clamps 55 that the recess 51 of cylindrical shell 50 is interior to come easily rotary barrel 50.
In the above description, motor 30 is equivalent to motor of the present invention.Motor pulley 40 is equivalent to the first gear of the present invention.Belt pulley for sewing machine 44 is equivalent to the second gear of the present invention.Motor side screw insertion hole 36 is equivalent to motor side screw insertion hole of the present invention.
The structure of the Sewing machines 1 in the above-described embodiment is illustration, and the present invention can also make various distortion.In the following description, also description thereof is omitted to the identical symbol of the structure tag identical with above-mentioned embodiment.
Below with reference to Fig. 8, the variation 1 of above-mentioned embodiment is described.The cylindrical shell 150 of variation 1 has cylindrical shell tooth section 151 in its outer peripheral face end.The maintaining part 27 of carriage 25 has rotatable cylindrical shell gear 160 at its right flank.Cylindrical shell has the tooth section that is engaged in cylindrical shell tooth section 151 with gear 160.Cylindrical shell has slot part 161 with gear 160 at its right flank.Slot part 161 is sticked in instrument.Operating personnel are embedded in instrument that slot part 161 is interior to come rotary barrel with gear 160.Cylindrical shell is delivered to cylindrical shell tooth section 151 with the rotation of gear 160, and this cylindrical shell tooth section 151 is engaged in cylindrical shell gear 160.Consequently, cylindrical shell 150 can rotation.Therefore, operating personnel's rotary barrel 150 easily.Cylindrical shell can not rotated by instrument with gear 160 yet.Cylindrical shell also can be for example to be rotated by the power of motor with gear 160.
Below with reference to Fig. 9, the variation 2 of above-mentioned embodiment is described.The cylindrical shell 250 of variation 2 has recess 251 in two places of its right flank.Two recesses 251 are embedded in respectively on two protuberances of T font anchor clamps 255.Because anchor clamps 255 and cylindrical shell 250 are at two local tablings, so anchor clamps 255 are not easy to come off.Therefore, operating personnel's rotary barrel 250 easily.As mentioned above, can make to the mechanism of rotary barrel various distortion.
Below with reference to Figure 10, the variation 3 of above-mentioned embodiment is described.The cylindrical shell 350 of variation 3 has the barrel flange 352 of extending along the radial outward side at its peripheral end (upside among Figure 10).Maintaining part 327 has stage portion 328 on the side face within it.Operating personnel are inserted into cylindrical shell 350 in the maintaining part 327 from the left side when being installed on motor 30 on the carriage 25.The barrel flange 352 contact stage portion 328 of cylindrical shell 350.Therefore, cylindrical shell 350 can not deviate to the right side of maintaining part 327.Then operating personnel are inserted into motor 30 in the cylindrical shell 350 from the left side.Operating personnel are tightened against the first screw (with reference to Fig. 6 and Fig. 7) in the bracket side screw hole 61 (with reference to Fig. 5).Consequently, the stage portion 328 clamping barrel flange 352 of motor flange 35 and maintaining part 327 and fixing.Therefore, can prevent reliably that cylindrical shell 350 from deviating from from maintaining part 27.
Above-mentioned embodiment can also be made other distortion.For example, in the above-described embodiment, although machine frame 10 and carriage 25 are formed separately, operating personnel are fixed in carriage 25 on the machine frame 10 with screw 29, also can be that machine frame 10 and carriage 25 form one.In the above-described embodiment, anchor clamps 55 have protuberance 56, and cylindrical shell 50 has recess 51.In variation, also can form protuberance at cylindrical shell 50, form recess at anchor clamps.
Claims (10)
1. Sewing machines comprises:
Motor;
The first gear, this first gear is arranged on the output shaft of described motor;
Main shaft, this main shaft and described output shaft configure abreast;
The second gear, this second gear is arranged on the described main shaft; And
Synchronous belt, this synchronous belt is around being hung between described the first gear and the second gear;
It is characterized in that, comprising:
Carriage, this carriage are fixed on the machine frame outside;
Maintaining part, this maintaining part is arranged on the described carriage, and is cylindric; And
Cylindrical shell, this cylindrical shell is cylindric, the central shaft sequence of the central shaft of its external diameter and internal diameter, this cylindrical shell is rotatably kept by described maintaining part, and described motor is remained in the inboard of this cylindrical shell,
Described carriage keeps described motor under the state of the output shaft sequence of the central shaft of described maintaining part and the described motor that kept by described cylindrical shell.
2. Sewing machines as claimed in claim 1 is characterized in that:
Described carriage has the bracket side screw hole, and this bracket side screw hole inserts along the parallel direction of the output shaft of the described motor that keeps with described cylindrical shell for first screw,
Described motor has the motor side screw insertion hole, and this motor side screw insertion hole arranges coaxially with respect to described bracket side screw hole, and the diameter of this motor side screw insertion hole is greater than the diameter of described bracket side screw hole,
Described the first screw passes described motor side screw insertion hole, and tightens with described bracket side screw hole, by in the variable in distance of under the state of unscrewing described the first screw described cylindrical shell being rotated to make between described output shaft and the described main shaft.
3. Sewing machines as claimed in claim 1 is characterized in that:
Described maintaining part has the second screw hole, and this second screw hole is along radially passing described maintaining part, and from the outside with the second screw-driving,
Described the second screw hole is fixed this cylindrical shell inboard the contact with described cylindrical shell of described maintaining part.
4. Sewing machines as claimed in claim 2 is characterized in that:
Described maintaining part has the second screw hole, and this second screw hole is along radially passing described maintaining part, and from the outside with the second screw-driving,
Described the second screw is fixed this cylindrical shell inboard the contact with described cylindrical shell of described maintaining part.
5. Sewing machines as claimed in claim 1 is characterized in that:
Described cylindrical shell has the flange that extends along the radial outward side, and described flange is between described motor and described carriage.
6. Sewing machines as claimed in claim 2 is characterized in that:
Described cylindrical shell has the flange that extends along the radial outward side, and described flange is between described motor and described carriage.
7. Sewing machines as claimed in claim 3 is characterized in that:
Described cylindrical shell has the flange that extends along the radial outward side, and described flange is between described motor and described carriage.
8. Sewing machines as claimed in claim 4 is characterized in that:
Described cylindrical shell has the flange that extends along the radial outward side, and described flange is between described motor and described carriage.
9. such as each the described Sewing machines in the claim 1 to 8, it is characterized in that:
Also have the cylindrical shell gear that rotatably arranges,
Described cylindrical shell has and the tooth section of described cylindrical shell with the gear engagement in its periphery.
10. such as each the described Sewing machines in the claim 1 to 8, it is characterized in that:
Be formed with recess or protuberance at described cylindrical shell.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009076366A JP2010227203A (en) | 2009-03-26 | 2009-03-26 | Sewing machine |
| JP2009-076366 | 2009-03-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101845726A CN101845726A (en) | 2010-09-29 |
| CN101845726B true CN101845726B (en) | 2013-02-06 |
Family
ID=42770532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910224982 Expired - Fee Related CN101845726B (en) | 2009-03-26 | 2009-11-23 | Sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2010227203A (en) |
| CN (1) | CN101845726B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3924552A (en) * | 1975-02-24 | 1975-12-09 | Singer Co | Motor drive for sewing machines |
| CN101033577A (en) * | 2006-03-10 | 2007-09-12 | 大和缝纫机制造株式会社 | Motor drive sewing machine |
-
2009
- 2009-03-26 JP JP2009076366A patent/JP2010227203A/en active Pending
- 2009-11-23 CN CN 200910224982 patent/CN101845726B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3924552A (en) * | 1975-02-24 | 1975-12-09 | Singer Co | Motor drive for sewing machines |
| CN101033577A (en) * | 2006-03-10 | 2007-09-12 | 大和缝纫机制造株式会社 | Motor drive sewing machine |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2006-187522A 2006.07.20 |
| JP特开平8-318080A 1996.12.03 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101845726A (en) | 2010-09-29 |
| JP2010227203A (en) | 2010-10-14 |
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