CN203229743U - Sewing machine - Google Patents
Sewing machine Download PDFInfo
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- CN203229743U CN203229743U CN 201320145308 CN201320145308U CN203229743U CN 203229743 U CN203229743 U CN 203229743U CN 201320145308 CN201320145308 CN 201320145308 CN 201320145308 U CN201320145308 U CN 201320145308U CN 203229743 U CN203229743 U CN 203229743U
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Abstract
The utility model provides a sewing machine. An upper shaft belt pulley is arranged on an upper shaft disposed in a machine arm of the sewing machine, a lower shaft belt pulley is arranged on a lower shaft disposed in a machine base, and a rotating shuttle shaft belt pulley is arranged on a rotating shuttle shaft disposed in the machine base. The upper shaft belt pulley, the lower shaft belt pulley and the rotating shuttle shaft belt pulley are connected through a transmission belt. The inner circumference of the transmission belt is hung on the upper shaft belt pulley and the lower shaft belt pulley in a reeled mode, and the outer circumference of the transmission belt is hung on the rotating shuttle shaft belt pulley in a reeled mode. A tension belt pulley, the lower shaft belt pulley and the rotating shuttle shaft belt pulley are abreast supported in the machine base. The inner circumference of the transmission belt between the lower shaft belt pulley and the rotating shuttle shaft belt pulley is hung on the tension belt pulley. A motor is arranged in the machine base and used for driving the lower shaft. Rotating of the lower shaft is transferred to the upper shaft and the rotating shuttle shaft through the transmission belt.
Description
Technical field
The utility model relates to a kind of driving belt that utilizes and links the Sewing machines of going up axle, lower shaft and rotary shuttle shaft.
Background technology
Sewing machines has and is supported in going up axle, be supported in lower shaft and rotary shuttle shaft in the support in the horn.Last axle rotates in horn, is used for driving eedle and thread take-up tension lever.Lower shaft and rotary shuttle shaft rotate in support.Lower shaft is used for driving the work feed tooth, and rotary shuttle shaft is used for driving rotating shuttle.Eedle keeps upper thread, and rises, descends at the leading section of horn.Thread take-up tension lever and eedle synchronously rise, descend.The upper thread that thread take-up tension lever makes eedle keep when descending is lax, when rising this upper thread is tightened.The work feed tooth comes and goes action along fore-and-aft direction, rearward carries the cloth on the needle plate.Rotating shuttle is accommodated bottom line, rotation below needle plate.When eedle descended, upper thread formed the upper thread ring below needle plate.Rotating shuttle capture surface wire loop makes upper thread and bottom line staggered.In Sewing machines, synchronously rotate by last axle, lower shaft and rotary shuttle shaft, eedle, thread take-up tension lever, work feed tooth and rotating shuttle co-operating, thus the cloth on the needle plate is made.
2000-245984 number described Sewing machines of day disclosure special permission communique has rolls up the driving belt that hangs on the belt wheel (sprocket wheel), and this belt wheel is arranged on axle and the rotary shuttle shaft.Axle on the Motor Drive.By utilizing the rotation of axle in belt wheel and the driving belt transmission, rotary shuttle shaft and the synchronously rotation of last axle.Driving belt is the synchronous belt that has tooth on the two sides, and its tooth with the belt wheel periphery is meshed.Sewing machines has the tensioning pulley (tightener sprocket) of the tooth that is engaged in the driving belt periphery between last axle and rotary shuttle shaft.The rotation of last axle is delivered to rotary shuttle shaft by belt wheel and driving belt.Rotary shuttle shaft and the rotation of last axle interlock.Tensioning pulley applies tension force to driving belt, keeps the engagement of driving belt and each belt wheel.Driving belt and belt wheel can produce the sound (engagement sound) of tooth engagement.The speed rotation of the twice of the above axle of rotary shuttle shaft.The belt wheel of rotary shuttle shaft can produce bigger engagement sound in support.Engagement sound can leak into outside the support, and brings discomfort to the operating personnel.Motor is positioned at the position of going up the horn equal height of axle with supporting.Because heavy weight motor is positioned at the top, so the vibration of Sewing machines in operation process is bigger.
The utility model content
The purpose of this utility model is to suppress the leakage of the engagement sound of driving belt and belt wheel, thereby alleviates operating personnel's discomfort.Its another purpose is to suppress the vibration of Sewing machines in operation process.
The Sewing machines of technical scheme 1 have the pillar that is supported in the horn and links up with going up of being connected of shank and the thread take-up tension lever support that axle, feed cloth tooth and rotating shuttle arrange, with above-mentioned support and above-mentioned horn and be bearing in side by side in the above-mentioned support and with above-mentioned axle parallel lower shaft and the rotary shuttle shaft gone up, wherein, this Sewing machines has: motor, it is configured in the above-mentioned support, is used for driving above-mentioned lower shaft; The control substrate disposes in the mode that spreads all over a whole side opposite with the operating personnel in the inside of above-mentioned pillar and above-mentioned horn, can control the driving of above-mentioned motor; Last shaft pulley, it is arranged at the above-mentioned axle of going up, with axle one rotation on this; Following shaft pulley, it is arranged at above-mentioned lower shaft, with this lower shaft one rotation; The rotary shuttle shaft belt wheel, it is arranged at above-mentioned rotary shuttle shaft, with this rotary shuttle shaft one rotation; Driving belt, it is hung on above-mentioned shaft pulley and the above-mentioned shaft pulley down gone up with rolling up in interior week, and the periphery volume is hung on above-mentioned rotary shuttle shaft belt wheel; Tensioning pulley, itself and above-mentioned down shaft pulley and above-mentioned rotary shuttle shaft belt wheel are supported in the above-mentioned support side by side, and above-mentioned driving belt is rolled up in it between above-mentioned shaft pulley down and rotary shuttle shaft belt wheel and is hung on this tensioning pulley in week; The belt wheel receiving room, its by surround with antetheca, rear wall, Zuo Bi and right wall above-mentioned shaft pulley down around, above-mentioned rotary shuttle shaft belt wheel around and above-mentioned tensioning pulley around be arranged at above-mentioned support; And the bottom sound-insulation member, its opening obturation with this belt wheel receiving room bottom is got up.
In Sewing machines of the present utility model, in horn on axle be provided with shaft pulley, the lower shaft in support is provided with shaft pulley down, the rotary shuttle shaft in support is provided with the rotary shuttle shaft belt wheel.Driving belt is rolled up week in it and is hung on shaft pulley and following shaft pulley, and its periphery volume is hung on the rotary shuttle shaft belt wheel.Tensioning pulley is supported in the support, and driving belt is rolled up in it between following shaft pulley and rotary shuttle shaft belt wheel and is hung on tensioning pulley in week.Tensioning pulley applies tension force to driving belt, keeps the synchronous rotation of axle, lower shaft and rotary shuttle shaft.Motor is used for driving lower shaft.Motor configurations is in the support of supporting lower shaft.Thus, the center of gravity of Sewing machines reduces, thereby can suppress the vibration in the operation process.Motor is positioned at support, and the control substrate disposes in the mode that spreads all over whole rear side in the inside of pillar and horn.Therefore, the wiring operation between control substrate and the motor is comparatively easy, and the activity duration shortens.Because the control substrate is configured in a side opposite with the operating personnel, therefore, the operating personnel can not touch this side that disposes the control substrate of horn in making operation process.Following shaft pulley, rotary shuttle shaft belt wheel and tensioning pulley are configured in the belt wheel receiving room that is arranged at support.The belt wheel receiving room is by around surrounding with antetheca, rear wall, Zuo Bi and right wall, and the opening obturation of bottom is got up and forms with the bottom sound-insulation member.Thus, the engagement sound of driving belt and each belt wheel is difficult for leaking into outside the belt wheel receiving room, thereby can alleviate operating personnel's discomfort.
In the Sewing machines of technical scheme 2, above-mentioned control substrate has substrate and heat generating components, this substrate is installed in the above-mentioned horn in the mode of one face towards above-mentioned horn inside, this heat generating components is configured on another face of this substrate, this Sewing machines has: cover, it covers a side opposite with the operating personnel of above-mentioned pillar and above-mentioned horn, installs for above-mentioned substrate; Inner cover, it covers a face side of aforesaid substrate and the inside of above-mentioned cover; Radiator, its another face side at aforesaid substrate contacts with above-mentioned heat generating components; And fin, its be arranged on this radiator on the surface of above-mentioned horn outside.
The substrate of control substrate is installed in this horn in the mode of one face towards horn inside.Heat generating components is configured on another face of substrate.Substrate is covered the one face side by inner cover, thereby prevents adhering to of dust, wet goods.Another face side of substrate is relative with radiator.Radiator contacts with heat generating components, has fin on the surface towards the horn outside of radiator.The heating of heat generating components is transmitted to fin via radiator.The outer air of fin and horn carries out heat exchange.The heating of heat generating components can diffuse to outside the horn reliably.Therefore, the control substrate can be not overheated, can normally work.The cover substrate is installed, and covers a side opposite with the operating personnel of horn.Thus, the engagement sound of driving belt and each belt wheel is difficult for leaking into outside pillar and the horn, thereby can alleviate operating personnel's discomfort.
The opening on the top of belt wheel receiving room is got up by top sound-insulation member obturation.Thus, the engagement sound of driving belt and each belt wheel is difficult for leaking into the outer pillar side of belt wheel receiving room, thereby can alleviate operating personnel's discomfort.
In the Sewing machines of technical scheme 5, above-mentioned motor is arranged on the outer surface of above-mentioned belt wheel receiving room in above-mentioned support.
Because motor is positioned at the outside of belt wheel receiving room, therefore, the distance of shaft pulley is shorter under the distance.Therefore, in Sewing machines, can prevent that the transmission efficiency of driving force from motor to lower shaft from reducing.
Driving belt is elongation sometimes in long-term use.In this case, tensioning pulley can be under the application of force effect of tension force additional mechanism providing additional operation to moving away from the direction of shaft pulley and rotary shuttle shaft belt wheel down, keep the tension force of the driving belt after the elongation.The tension force additional mechanism providing additional operation can constitute to the extension spring away from the direction application of force of descending shaft pulley and rotary shuttle shaft belt wheel simply by the supporting plate that is used for the supporting tensioning pulley with to this supporting plate.
Description of drawings
Fig. 1 is the stereoscopic figure of Sewing machines.
Fig. 2 is the in-built stereogram of Sewing machines.
Fig. 3 is the in-built front view of Sewing machines.
Fig. 4 is the key diagram of driving belt volume extension state.
Fig. 5 is the key diagram of the supporting construction of tensioning pulley.
Fig. 6 is the stereogram of the installation portion of control substrate.
Fig. 7 is the stereoscopic figure of the Sewing machines seen from the rear.
Fig. 8 is the stereogram of having pulled down the Sewing machines behind the back cover.
Fig. 9 is the sectional view in radiator and air channel.
Figure 10 is the stereogram of the support seen from the below.
Figure 11 is the stereogram that the support of lower cover is installed.
Figure 12 is the stereogram that the relation of shaft pulley and driving belt is gone up in expression.
Figure 13 is the key diagram of the installment state of upper cover plate.
Figure 14 is the stereogram that the support with concavo-convex lower cover is installed.
The specific embodiment
Embodiment of the present utility model is described.Employed direction (all around, up and down) is represented with arrow in each figure in the following description.
As shown in Figure 1, Sewing machines 1 has support 2, pillar 3 and horn 4.Support 2 has rectangular top board 2a long on left and right directions.Pillar 3 extends upward from the right part of top board 2a.Horn 4 extends to left from the top of pillar 3.The rear side of pillar 3 and horn 4 is covered by back cover 6.The right side of pillar 3 is covered by right side cover 7.Back cover 6 and right cover 7 can disassemble.
The left part of rotary shuttle shaft 23 is linked to rotating shuttle 15(with reference to Fig. 3 below needle plate 20).Rotating shuttle 15 rotates under the driving effect of rotary shuttle shaft 23.Rotary shuttle shaft 23 has rotary shuttle shaft belt wheel 33.Rotary shuttle shaft belt wheel 33 embeds the right part of being fixed in rotary shuttle shaft 23.Lower shaft 22 has following shaft pulley 32.Following shaft pulley 32 embeds and is fixed in lower shaft 22, is configured in the back lower place of rotary shuttle shaft belt wheel 33.
Support 2 portion within it has tensioning pulley 34.Tensioning pulley 34 is positioned at the place ahead of rotary shuttle shaft belt wheel 33.As shown in Figure 5, tensioning pulley 34 is installed on the carriage 17 in the support 2 by supporting plate 35.Supporting plate 35 can be swung centered by the bolster 35a of bottom.Tensioning pulley 34 can rotate centered by rotating shaft 34a.Rotating shaft 34a extends along left and right directions on the top of supporting plate 35.One end of extension spring 18 is linked to the upper end of supporting plate 35.The other end of extension spring 18 is linked to carriage 17.The upper end of 18 pairs of supporting plates 35 of extension spring is (direction of arrow among Fig. 5) application of force forwards.That is, 18 pairs of tensioning pulleys 34 of extension spring are to the direction application of force away from following shaft pulley 32 and rotary shuttle shaft belt wheel 33.
Horn 4 is at its left part supporting shank 11, depression bar 12 and thread take-up tension lever 13.Shank 11 and depression bar 12 extend along above-below direction, highlight below horn 4 towards needle plate 20 ground.Shank 11 is equipped with eedle (omitting diagram) in its bottom.Depression bar 12 is equipped with presser feet 12a in its bottom.Thread take-up tension lever 13 highlights in the place ahead of horn 4.
Axle 21 is gone up in horn 4 portion's supporting within it.Last axle 21 is the rotating shafts that extend along left and right directions in horn 4.The left part of last axle 21 is linked to shank 11 via needle bar drive device 14, is linked to thread take-up tension lever 13 via thread take-up tension lever driving mechanism (omitting diagram).Shank 11 and eedle rise, descend by last axle 21 rotations.Thread take-up tension lever 13 is swung by last axle 21 rotations.The leading section of thread take-up tension lever 13 and shank 11 and eedle synchronously rise, descend.Depression bar 12 and presser feet 12a rise under operating personnel's operation, descend.Presser feet 12a after the decline presses the cloth on the eedle presser 20.Utilize the action of work feed tooth 10 on needle plate 20, rearward carry mobile cloth.
The right part of last axle 21 is linked to belt shaft 40 via shaft coupling 16.Belt shaft 40 extends along left and right directions.Belt shaft 40 fixedly has handwheel 41 in its right part.As shown in Figure 1, handwheel 41 highlights in the outside of right side cover 7 in the top of pillar 3.The operating personnel can utilize handwheel 41 operations to go up axle 21 and make its rotation.Shaft coupling 16 has last shaft pulley 31 integratedly.Last shaft pulley 31 is positioned at the top of following shaft pulley 32 and the rotary shuttle shaft belt wheel 33 of support 2.
As mentioned above, lower shaft 22 transfers driving work feed tooth 10 at the driving effect backspin of motor 24, makes work feed tooth 10 come and go action.Following shaft pulley 32 and the rotation of lower shaft 22 one.The rotation of following shaft pulley 32 is delivered to rotary shuttle shaft belt wheel 33 and last shaft pulley 31 via driving belt 25.Rotary shuttle shaft 23 and the rotation of rotary shuttle shaft belt wheel 33 one, last axle 21 and last shaft pulley 31 one rotation.
The diameter of rotary shuttle shaft belt wheel 33 is half of diameter of down shaft pulley 32.Rotary shuttle shaft 23 drives rotating shuttle 15 with the speed of the twice of lower shaft 22 around the opposite spin opposite with lower shaft 22.Rotating shuttle 15 rotated for two weeks in during the 10 round actions of work feed tooth.The equal diameters of the diameter of last shaft pulley 31 and following shaft pulley 32.Last axle 21 rotates to drive shank 11 and thread take-up tension lever 13 with the speed identical with lower shaft 22 around the direction identical with lower shaft 22.Eedle and thread take-up tension lever 13 synchronously rise, descend with the round action of work feed tooth 10.Sewing machines 1 utilizes the action of work feed tooth 10, eedle, thread take-up tension lever 13 and rotating shuttle 15 that the cloth on the needle plate 20 is made.Motor 24 is configured in the support 2.Since dispose heavy weight motor 24 at lower position, the center of gravity step-down of Sewing machines 1, thus can reduce the vibration of Sewing machines 1 when making.And the heating of motor 24 is difficult for being transmitted to horn 4.The temperature rising degree of horn 4 is less, thereby can eliminate the operating personnel's who touches horn 4 uneasiness.Lower shaft 22, rotary shuttle shaft 23 and go up axle 21 and rotate by driving belt 25 interlocks.Because driving belt 25 does not need to lubricate, therefore, motor 24 can not be attached with lubricating oil, is difficult for taking place insulation degradation.
Supporting plate 35 also can be by the driver application of force except extension spring 18.Tensioning pulley 34 also can be can being supported along the mode that fore-and-aft direction slides, by extension spring 18 or the driver application of force forwards.
The place ahead of shaft pulley 32 and rotary shuttle shaft belt wheel 33 under tensioning pulley 34 is positioned at.Driving belt 25 contacts with the periphery of following shaft pulley 32 and the periphery of rotary shuttle shaft belt wheel 33 with the center angle greater than 90 °.Following shaft pulley 32 is engaged in many internal tooth 25a, and rotary shuttle shaft belt wheel 33 is engaged in many external tooth 25b.Owing to be engaged in many internal tooth 25a and external tooth 25b, therefore, the pressure that puts on each tooth diminishes.Therefore, the power that puts on internal tooth 25a and external tooth 25b is less, and the durability of driving belt 25 rises.
Illustrate back cover 6(be equivalent to the cover) structure.As shown in Figure 2, back cover 6 has the roughly whole shape that covers the rear side of pillar 3 and horn 4.Therefore, can prevent that the noise that the engagement by the internal tooth 25a of driving belt 25 and last shaft pulley 31 causes from escaping to outside pillar 3 and the horn 4.The inside of back cover 6 is covered by inner cover 8.Inner cover 8 can disassemble from back cover 6.As shown in Figure 6, back cover 6 its roughly total inner surface be supported with control substrate 5.Control substrate 5 has power supply unit 51, Motor Drive portion 52 and the Sewing machines control part 53 that is configured on the substrate 50.Control substrate 5 utilizes screw fixing base 50, and substrate 50 is bearing on the back cover 6.Control substrate 5 disposes in the mode that spreads all over whole rear side in the inside of pillar 3 and horn 4.Can in pillar 3 and horn 4, carry out be used to the wiring operation that is connected control substrate 5 and motor 24.Therefore, wiring operation is comparatively easy, and can shorten the activity duration.Because control substrate 5 is configured in a side opposite with the operating personnel, therefore, the operating personnel can not touch this side that disposes control substrate 5 of horn 4 in making operation process.Power supply unit 51 has for the alternating current with source power supply and is converted to galvanic circuit.Motor Drive portion 52 has for the circuit that utilizes by the DC powered motor 24 after power supply unit 51 conversions.Sewing machines control part 53 has CPU, RAM, ROM etc., is the computer for control Sewing machines 1 molar behavior.Power supply unit 51 and Motor Drive portion 52 are to be configured on the substrate 50 to the mode the right side of horn 4 from pillar 3 inside.Pillar 3 right side mechanical parts inner and horn 4 are less, therefore can guarantee bigger space.Power supply unit 51 and Motor Drive portion 52 have circuit block highly higher on substrate 50 (transformer, capacitor etc.).The circuit block of power supply unit 51 and Motor Drive portion 52 can be not with horn 4 and pillar 3 in mechanical part dispose with interfering.As shown in Figure 2, inner cover 8 has the concaveconvex shape consistent with the height of circuit block on the substrate 50.Inner cover 8 is fixed on the substrate 50 by screw.Control substrate 5 can be removed with back cover 6, inner cover 8, and can check by dismounting inner cover 8.The whole front surface relative with horn 4 inside of inner cover 8 covered substrates 50.Inner cover 8 can prevent that dust, wet goods are attached to the circuit block on the substrate 50.
As shown in Figure 9, back cover 6 has the air channel 56 of the rear side of radiator cover 54.Air channel 56 has the air entry 57 of lower end and the exhaust outlet 58 of upper end, forms air flue 59 between air entry 57 and exhaust outlet 58.Can be with back cover 6 one or arrange independently in air channel 56.Inner cover 8, back cover 6 and air channel 56 resin for having anti-flammability.
Heat-generating electronic part 60 produces heat when Sewing machines 1 work.The heating of heat-generating electronic part 60 is transmitted to fin 55 from radiator 54, diffuses in the air flue 59 that is contacted with fin 55.Air themperature is dispersed because of heat and is risen, thereby produces ascending air in air flue 59.In air flue 59, produce from the air channel air entry 57 of 56 lower end towards exhaust outlet 58 airflow flowing of upper end.Fin 55 contacts with flow air in air flue 59, thus the heating that can disperse heat-generating electronic part 60 reliably.Heat in the air flue 59 is discharged into the outside from exhaust outlet 58.Heat-generating electronic part 60 can be cooled off under the effect of radiator 54 and fin 55 reliably.Fin 55 end thereon has rake towards upper end height step-down, has the rake towards bottom height step-down in its bottom.Loss resistance when rake can reduce from air entry 57 suction air, from exhaust outlet 58 discharge air.
As Figure 10～shown in Figure 12, support 2 has antetheca 2b and rear wall 2c below top board 2a.Antetheca 2b and rear wall 2c extend downwards from the lower surface of top board 2a.Support 2 has be used to the belt wheel receiving room 61 of taking in down shaft pulley 32, rotary shuttle shaft belt wheel 33 and tensioning pulley 34.Surround between antetheca 2b and the rear wall 2c with left wall 2d and right wall 2e, and form belt wheel receiving room 61 in the right part of support 2.As shown in figure 10, left wall 2d has the 22d of hole portion, the 23d that connects along left and right directions.Lower shaft 22 is worn via portion 22d across bearing (omitting diagram).Rotary shuttle shaft 23 is worn via portion 23d across bearing (omitting diagram).Right wall 2e has the 24e of hole portion, the 24f that connects along left and right directions.The output shaft of motor 24 is worn via portion 24e.Motor 24 is positioned at the right side of right wall 2e.That is, motor 24 is positioned at the outside of belt wheel receiving room 61.Because motor 24 is positioned at the outside (right side of right wall 2e) of belt wheel receiving room 61, therefore, the distance of shaft pulley 32 is shorter under motor 24 distances.Therefore, can prevent that 23 transmission efficiency reduces driving force from motor 24 to lower shaft.The 24f of hole portion is the hole of passing for rotary shuttle shaft 23 in when assembling, is clogged by rubber stopper (omitting diagram) etc.Antetheca 2b, rear wall 2c, left wall 2d and right wall 2e surface within it are equipped with sound absorption part 65.Sound absorption part 65 is used for absorbing the sound in the belt wheel receiving room 61 and prevents that it from leaking into the outside.
As shown in figure 11, the bottom of belt wheel receiving room 61 is covered by lower cover 62.Lower cover 62(is equivalent to the bottom sound-insulation member) with the opening obturation of belt wheel receiving room 61 bottoms, thus prevent that foreign matter from entering, and suppress the acoustical leakage in the belt wheel receiving room 61.Lower cover 62 gets up the bottom obturation of belt wheel receiving room 61, thereby prevents that foreign matter from entering.Lower cover 62 can disassemble, and the surface is equipped with sound absorption part (omitting diagram) within it.The sound absorption part is used for absorbing the sound in the belt wheel receiving room 61 and prevents that it from leaking into the outside.Can after lower cover 62 is disassembled, driving belt 25 volumes be hung on down shaft pulley 32, rotary shuttle shaft belt wheel 33 and tensioning pulley 34.
As shown in figure 12, top board 2a has opening 2f in its right back portion.Opening 2f is positioned at the top of belt wheel receiving room 61.Opening 2f arranges for the driving belt 25 that is hung on shaft pulley 31 for volume passes.As shown in figure 13, opening 2f is covered by upper cover plate 63.Upper cover plate 63(is equivalent to the top sound-insulation member) with opening 2f obturation, thus the acoustical leakage in the inhibition belt wheel receiving room 61.Upper cover plate 63 can disassemble, and the surface is equipped with sound absorption part (omitting diagram) within it.The sound absorption part is used for absorbing the sound in the belt wheel receiving room 61 and prevents that it from leaking into the outside.Can be after upper cover plate 63 be disassembled, driving belt 25 is drawn out to that top board 2a goes up and volume is hung on shaft pulley 31.Can after be disassembled, belt shaft 40 and handwheel 41 carry out the volume of driving belt 25 and hang.Upper cover plate 63 is cut a part for fear of interfering with driving belt 25.
As shown in figure 14, lower cover 62 also can have concavo-convex 64.Sound in the concavo-convex 64 meeting diffuse reflection belt wheel receiving rooms 61.Therefore, concavo-convex 64 can suppress the sympathetic response of belt wheel receiving room 61, and make and leak into outside sound from lower cover 62 and spread out.Concavo-convex 64 also can be formed at antetheca 2b, rear wall 2c, left wall 2d and right wall 2e.
Claims (7)
1. Sewing machines, this Sewing machines (1) has:
Last axle (21), it is supported in the horn (4) and with shank (11) and thread take-up tension lever (13) and is connected;
Support (2), its feed cloth tooth (10) and rotating shuttle (15) arrange;
Pillar (3), it links up above-mentioned support and above-mentioned horn; And
Lower shaft (22) and rotary shuttle shaft (23), they are bearing in the above-mentioned support side by side, and are parallel with above-mentioned upward axle,
This Sewing machines is characterised in that to have:
Motor (24), it is configured in the above-mentioned support, is used for driving above-mentioned lower shaft;
Control substrate (5), it disposes in the mode that spreads all over a whole side opposite with the operating personnel in the inside of above-mentioned pillar and above-mentioned horn, can control the driving of above-mentioned motor;
Last shaft pulley (31), it is arranged at the above-mentioned axle of going up, with axle one rotation on this;
Following shaft pulley (32), it is arranged at above-mentioned lower shaft, with this lower shaft one rotation;
Rotary shuttle shaft belt wheel (33), it is arranged at above-mentioned rotary shuttle shaft, with this rotary shuttle shaft one rotation;
Driving belt (25), it is hung on above-mentioned shaft pulley and the above-mentioned shaft pulley down gone up with rolling up in interior week, and the periphery volume is hung on above-mentioned rotary shuttle shaft belt wheel;
Tensioning pulley (34), itself and above-mentioned down shaft pulley and above-mentioned rotary shuttle shaft belt wheel are supported in the above-mentioned support side by side, and above-mentioned driving belt is rolled up in it between above-mentioned shaft pulley down and rotary shuttle shaft belt wheel and is hung on this tensioning pulley in week;
Belt wheel receiving room (61), its by surround with antetheca (2b), rear wall (2c), left wall (2d) He Youbi (2e) above-mentioned shaft pulley down around, above-mentioned rotary shuttle shaft belt wheel around and above-mentioned tensioning pulley around be arranged at above-mentioned support; And
Bottom sound-insulation member (62), its opening obturation with this belt wheel receiving room bottom is got up.
2. Sewing machines according to claim 1 is characterized in that,
Above-mentioned control substrate has substrate (50) and heat generating components (60), and this substrate is installed in the above-mentioned horn in the mode of one face towards above-mentioned horn inside, and this heat generating components is configured on another face of this substrate,
This Sewing machines has:
Cover (6), it covers a side opposite with the operating personnel of above-mentioned pillar and above-mentioned horn, installs for above-mentioned substrate;
Inner cover (8), it covers a face side of aforesaid substrate and the inside of above-mentioned cover;
Radiator (54), its another face side at aforesaid substrate contacts with above-mentioned heat generating components; And
Fin (55), its be arranged on this radiator on the surface of above-mentioned horn outside.
3. Sewing machines according to claim 1 is characterized in that,
This Sewing machines has top sound-insulation member (63) that the opening obturation on above-mentioned belt wheel receiving room top is got up.
4. Sewing machines according to claim 2 is characterized in that,
This Sewing machines has top sound-insulation member (63) that the opening obturation on above-mentioned belt wheel receiving room top is got up.
5. according to each described Sewing machines in the claim 1～4, it is characterized in that,
Above-mentioned motor is arranged on the outer surface of above-mentioned belt wheel receiving room in above-mentioned support.
6. according to each described Sewing machines in the claim 1～4, it is characterized in that,
This Sewing machines has the tension force additional mechanism providing additional operation, this tension force additional mechanism providing additional operation to above-mentioned tensioning pulley to the direction application of force away from above-mentioned down shaft pulley and above-mentioned rotary shuttle shaft belt wheel, thereby to above-mentioned driving belt additional tension,
The mentioned strain additional mechanism providing additional operation has:
Supporting plate (35), it is used for the above-mentioned tensioning pulley of supporting, can swing centered by the bolster (35a) parallel with the rotating shaft (34a) of this tensioning pulley; And
Extension spring (18), its to the position of separating with above-mentioned bolster on this supporting plate to the direction application of force away from above-mentioned shaft pulley down and above-mentioned rotary shuttle shaft belt wheel.
7. Sewing machines according to claim 5 is characterized in that,
This Sewing machines has the tension force additional mechanism providing additional operation, this tension force additional mechanism providing additional operation to above-mentioned tensioning pulley to the direction application of force away from above-mentioned down shaft pulley and above-mentioned rotary shuttle shaft belt wheel, thereby to above-mentioned driving belt additional tension,
The mentioned strain additional mechanism providing additional operation has:
Supporting plate (35), it is used for the above-mentioned tensioning pulley of supporting, can swing centered by the bolster (35a) parallel with the rotating shaft (34a) of this tensioning pulley; And
Extension spring (18), its to the position of separating with above-mentioned bolster on this supporting plate to the direction application of force away from above-mentioned shaft pulley down and above-mentioned rotary shuttle shaft belt wheel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012082897A JP2013212188A (en) | 2012-03-30 | 2012-03-30 | Sewing machine |
| JP2012-082897 | 2012-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203229743U true CN203229743U (en) | 2013-10-09 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320145308 Expired - Lifetime CN203229743U (en) | 2012-03-30 | 2013-03-27 | Sewing machine |
| CN201310102629.2A Expired - Fee Related CN103361903B (en) | 2012-03-30 | 2013-03-27 | Sewing machines |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310102629.2A Expired - Fee Related CN103361903B (en) | 2012-03-30 | 2013-03-27 | Sewing machines |
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| Country | Link |
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| JP (1) | JP2013212188A (en) |
| CN (2) | CN203229743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105483950A (en) * | 2016-01-18 | 2016-04-13 | 杰克缝纫机股份有限公司 | Sewing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105624932A (en) * | 2015-12-29 | 2016-06-01 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN108085887B (en) * | 2016-11-21 | 2024-04-19 | 宁波富菱缝纫设备有限公司 | Transmission mechanism of sewing machine and installation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5228162A (en) * | 1992-02-27 | 1993-07-20 | Wu Kun Lien | Transmission and balancing mechanism for the workpiece supporting arm of a stitching machine |
| JP2000245984A (en) * | 1999-02-26 | 2000-09-12 | Juki Corp | Device for driving shuttle for sewing machine |
| CN2623729Y (en) * | 2003-02-09 | 2004-07-07 | 张武雄 | Clutch device for rotating shuttle drive shaft of sewing machine |
| CN101021034B (en) * | 2007-03-20 | 2011-09-14 | 新杰克缝纫机股份有限公司 | Three-needle lock stitch seam plaining machine |
| JP5149575B2 (en) * | 2007-09-20 | 2013-02-20 | Ｊｕｋｉ株式会社 | sewing machine |
| JP2010000233A (en) * | 2008-06-20 | 2010-01-07 | Tokai Ind Sewing Mach Co Ltd | Hook driving device for sewing machine and multi-head sewing machine |
-
2012
- 2012-03-30 JP JP2012082897A patent/JP2013212188A/en active Pending
-
2013
- 2013-03-27 CN CN 201320145308 patent/CN203229743U/en not_active Expired - Lifetime
- 2013-03-27 CN CN201310102629.2A patent/CN103361903B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105483950A (en) * | 2016-01-18 | 2016-04-13 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN105483950B (en) * | 2016-01-18 | 2020-08-04 | 杰克缝纫机股份有限公司 | Sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103361903A (en) | 2013-10-23 |
| CN103361903B (en) | 2015-08-05 |
| JP2013212188A (en) | 2013-10-17 |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131009 |
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| CX01 | Expiry of patent term |