CN101575777B - Sewing machine - Google Patents
Sewing machine Download PDFInfo
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- CN101575777B CN101575777B CN 200910138843 CN200910138843A CN101575777B CN 101575777 B CN101575777 B CN 101575777B CN 200910138843 CN200910138843 CN 200910138843 CN 200910138843 A CN200910138843 A CN 200910138843A CN 101575777 B CN101575777 B CN 101575777B
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- Prior art keywords
- vibration suppression
- handwheel
- sewing machines
- suppression parts
- vibration
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Abstract
The invention relates to a sewing machine for reducing vibrating noise produced by spider handle. The spider handle of the sewing machine includes an axis interconnecting part connected to the sewing machine main shaft and a barrel part. The barrel part has rubber-like outside vibration suppression components which are in face contact with the inner circumference surface of the barrel part and areclosely configured on the inner surface of the end wall part of the barrel part. The outside vibration suppression components absorb the vibration of the barrel part transferred from the main shaft o f the sewing machine through a shaft connection part.
Description
Technical field
The present invention relates to a kind of Sewing machines, especially reduce the Sewing machines of noise of generation of vibration of the handwheel of the end be fixed in machine spindle.
Background technology
In the past, various Sewing machiness comprise pedestal part, erect in pedestal part the column sections be provided with from the upper end of column sections with the form relative with pedestal part to horn section that left extends.Inside in horn section is equipped with machine spindle.Column sections side in horn section is equipped with sewing machine electromotor.The output shaft of sewing machine electromotor is connected with machine spindle.Sewing machine electromotor drives the machine spindle rotation.
One end of machine spindle is fixed in handwheel.Handwheel is equipped on the outside of horn section.The other end of machine spindle and the shank up-down mechanism mechanism that is connected with thread take-up tension lever is connected.The shank up-down mechanism moves up and down shank.The thread take-up tension lever luffing mechanism swings up and down thread take-up tension lever.A plurality of bearings and ball bearing support machine spindle rotationally around the axle center on sewing machine stand.In sewing, shank up-down mechanism and thread take-up tension lever luffing mechanism drive by the rotation of machine spindle, and shank and thread take-up tension lever move up and down.When described situation, the driving of shank up-down mechanism and thread take-up tension lever luffing mechanism becomes the reason of vibration.This vibration is delivered to handwheel by machine spindle, so handwheel also can vibrate.
In the manual rotating device that Japanese Patent Publication is put down in writing for No. 3614550, handwheel is fixed in an end of hand wheel shaft.Hand wheel shaft rotatably and is slidably inserted logical handwheel bearing.In manual rotating device, between handwheel and handwheel bearing, dispose helical spring.Helical spring is to leaving handwheel bearing direction to the handwheel application of force.The handwheel gear is fixed in the other end of hand wheel shaft.Operating personnel overcome after helical spring compresses into handwheel, the handwheel gear just with the mainshaft gear engagement of being fixed in upper axle (machine spindle).When under the state that operating personnel are keeping compressing into during rotation hand wheel, but the manual rotation main shaft.
Central portion at the length direction of hand wheel shaft is provided with the handwheel roller, and the breach that this handwheel roller can form with the end face at the handwheel bearing engages.When operating personnel decontroled handwheel on the roller position relative with breach, the roller of handwheel bearing just was sticked in breach by the helical spring application of force, and the handwheel gear leaves mainshaft gear.Therefore, the Sewing machines of described communique is not easy to vibration is delivered to handwheel by upper axle.
But the Sewing machines of described communique need to separate independently hand wheel shaft with upper axle.Therefore, Sewing machines need to be connected upper axle/remove with hand wheel shaft mechanism, thus there are the maximization of device and the problem that cost increases.The Sewing machines of described communique is difficult to be applied to have the existing Sewing machines of the handwheel that is fixed in machine spindle.
In the Sewing machines with the handwheel that is fixed in machine spindle, the cylinder section of the free end side of handwheel is tempestuously vibration sometimes, and produces the above noise of 80db.Noise is delivered to the position far away of the side of handwheel with directive property, thus the problem that exists working environment to worsen.
Summary of the invention
The object of the invention is to reduce vibrating noise that the handwheel of Sewing machines produces, can reduce vibrating noise, also can be applied to the reduction etc. of the vibrating noise of existing handwheel with simple structure.
The Sewing machines of technical scheme 1 comprises handwheel, this handwheel is fixed in an end of machine spindle, and can be equipped on manually the outside of horn section, described handwheel has axle connecting portion and cylinder section, described axle connecting portion is fixed on the described machine spindle, described cylinder section with respect to described axle connecting portion in a side opposite with described horn section, this Sewing machines is provided with the first vibration suppression parts, this the first vibration suppression parts suppress to be delivered to from described machine spindle the vibration of described cylinder section, cylinder section is made of end wall and side wall portion, this end wall is connected with a side of axle connecting portion, described side wall portion extends to a side opposite with horn section from end wall, inner peripheral surface at side wall portion is provided with the first vibration suppression parts, and described the first vibration suppression parts are made of elastomeric material.The first vibration suppression parts absorb the vibration that is delivered to a section from machine spindle.
In sewing, the vibration that swings up and down generation according to the thread take-up tension lever that moves up and down and driven by the thread take-up tension lever luffing mechanism of the shank that is driven by the shank up-down mechanism is delivered to handwheel by machine spindle.The first vibration suppression parts of being located at a section absorb the vibration that is delivered to.Therefore the function of sewing reduces the noise of the generation of vibration of handwheel.This noise countermeasure can be carried out at an easy rate with the simple structure that is provided with the first vibration suppression parts in cylinder section, also can be applied on the handwheel of existing Sewing machines.In this noise countermeasure, the weight of handwheel increases hardly.Therefore, Sewing machines does not have influence on the High Rotation Speed of machine spindle.
In addition, the first vibration suppression parts can suppress the vibration of the side wall portion of cylinder section.
The Sewing machines of technical scheme 2 has the second vibration suppression parts, and this second vibration suppression component configuration becomes and the inner face butt of the side opposite with horn section of end wall or close.
Therefore the second vibration suppression parts absorb the vibration of the end wall of a section that is delivered to.Thereby the sewing function further suppresses the vibration of handwheel, further reduces the noise of the generation of vibration of handwheel.
The Sewing machines of technical scheme 3 is provided with endless member and fixed part, and this endless member covers the first vibration suppression parts and the second vibration suppression parts from a side opposite with horn section, and described fixed part is fixed in the axle connecting portion with endless member.
Therefore, endless member can interdict the noise that handwheel produces, and can reduce significantly the noise of the generation of vibration of handwheel.
The Sewing machines of technical scheme 4 is provided with the 3rd vibration suppression parts, and the 3rd vibration suppression component configuration is between axle connecting portion and endless member.
The 3rd vibration suppression parts absorb the vibration that is delivered to the axle connecting portion.Therefore, the sewing function further suppresses the vibration of handwheel.
In the Sewing machines of technical scheme 5, fixed part is made of bolt member, and Sewing machines is provided with the 4th vibration suppression parts, and for reducing the vibration that is delivered to endless member from bolt member, the 4th vibration suppression parts are installed on the bolt member.
Because the 4th vibration suppression parts can suppress the vibration of endless member significantly, the function of therefore sewing further suppresses the vibration of handwheel.
In the Sewing machines of technical scheme 6 and 7, the ease for operation when guaranteeing the manual operation handwheel forms recess in the inboard of endless member.
Therefore, Sewing machines can under the state of the sound isolation property energy that does not lose endless member, be guaranteed easy the to be affected property of handwheel.
In the Sewing machines of technical scheme 8, the first vibration suppression parts are made of synthetic resin or rubber.
Therefore, can realize at an easy rate the first vibration suppression parts with simple structure.
In the Sewing machines of technical scheme 9, the second vibration suppression parts are made of synthetic resin or rubber.
Therefore, can realize at an easy rate the second vibration suppression parts with simple structure.
In the Sewing machines of technical scheme 10, the 3rd vibration suppression parts are made of synthetic resin or rubber.
Therefore, can realize at an easy rate the 3rd vibration suppression parts with simple structure.
In the Sewing machines of technical scheme 11, the 4th vibration suppression parts are made of synthetic resin or rubber.
Therefore, can realize at an easy rate the 4th vibration suppression parts with simple structure.
Description of drawings
Fig. 1 is the front view of the Sewing machines of embodiments of the invention.
Fig. 2 is the handwheel amplification view on every side of Sewing machines.
Fig. 3 is the right side view that outboard vibrations suppresses parts.
Fig. 4 is the left side view of inserting the endless member that is leading to cylindrical shell.
Fig. 5 is the right side view of inboard vibration suppression parts.
The specific embodiment
The present invention will be described below with reference to the accompanying drawing that represents preferred embodiments.
As shown in Figure 1, industrial sewing machines M comprises pedestal part 1, column sections 2 and horn section 3.Column sections 2 is erect in the right end portion of pedestal part 1 and is arranged.Horn section 3 extends to left from the upper end of column sections 2, and relative with pedestal part 1.
As shown in Figure 2, machine spindle 10 is equipped on the inside of horn section 3.Sewing machine electromotor (not shown) drives machine spindle 10 rotations.A plurality of bearings and ball bearing 12 support machine spindle 10 rotationally around the axle center on sewing machine stand F.Horn section 3 has shank up-down mechanism and the thread take-up tension lever mechanism that fluctuates in its leading end side inner.The shank up-down mechanism moves up and down shank 6, in the lower end of this shank 6 eedle 7 is installed.The thread take-up tension lever luffing mechanism swings up and down thread take-up tension lever 5.The shank up-down mechanism mechanism that is connected with thread take-up tension lever is connected with the left part of machine spindle 10, and moves linkedly with the rotation of machine spindle 10.Section has the lower shaft (not shown) that is connected with machine spindle 10 to pedestal part 1 within it, the wire loop that is connected with this lower shaft catches with shuttle (not shown) and feed dog mechanism (not shown) etc.
The below describes handwheel 20.The material of handwheel 20 is aluminium alloys.As shown in Figure 2, handwheel 20 has cylinder section 21, path wall section 24, axle connecting portion 25 and the horn section side tube part 27 of ring-type integratedly.Cylinder section 21 has the side wall portion 22 of tubular and the end wall 23 of extending from the horn section side end of side wall portion 22 to the machine spindle side.Be extended with the path wall section 24 of tubular at the interior Zhou Duan of end wall 23, the horn section side end axle connecting portion 25 fixing with the outside that is embedded in machine spindle 10 of this path wall section 24 links to each other.The bolt hole of axle connecting portion 25 (not shown) and the bolt (not shown) that is inserted into the bolt hole 11 of machine spindle 10 are fixed in handwheel 20 on the machine spindle 10.
As shown in Figures 2 and 3, the outboard vibrations that is equipped with rubber system in the inboard of cylinder section 21 suppresses parts 30.Outboard vibrations suppresses parts 30 and has formed annulus 32 (this is equivalent to the second vibration suppression parts) and surrounding wall portion 31 (this is equivalent to the first vibration suppression parts).The annulus 32 of outboard vibrations inhibition parts 30 is close with the inner face of end wall 23, and surrounding wall portion 31 contacts with the inner peripheral surface face of side wall portion 22.
Such as Fig. 2 and shown in Figure 4, the endless member 35 of synthetic resin is installed on axle connecting portion 25 with the form of the end face of the inner face that covers cylinder section 21 and axle connecting portion 25.Endless member 35 sets with the form that suppresses parts 30, path wall section 24 and axle connecting portion 25 along cylinder section 21, outboard vibrations.Endless member 35 is made of periphery ring portion 36, interior all ring portions 37 and connecting portion 38.Periphery ring portion 36 forms the external peripheral zone of endless member 35.In Fig. 2, interior all ring portions 37 form than periphery ring portion 36 to the outstanding interior all side parts of left.Connecting portion 38 is outstanding from interior all ring portions 37 to left.Endless member 35 is embedded under the state of hole section 33 that outboard vibrations suppresses parts 30 in interior all ring portions 37 and sets.The outer peripheral face of periphery ring portion 36 contacts with the inner peripheral surface face of surrounding wall portion 31, and the interior plane-plane contact of the left surface of periphery ring portion 36 and annulus 32.
Connecting portion 38 has recess 39 and two bolts hole 40 of the end that can take in machine spindle 10.Two bolts hole 40 are inserted respectively the cylindrical shell 41 (this is equivalent to the 4th vibration suppression parts) of the rubber system that is connected with, and the cylindrical shell 41 of these two rubber systems is separately installed with bolt member 42.Ease for operation when guaranteeing manual operation handwheel 20 is formed with recess 43 in the inboard of peripheral ring section 36.
Such as Fig. 2 and shown in Figure 5, between axle connecting portion 25 and endless member 35, be equipped with the inboard vibration suppression parts 45 (this is equivalent to the 3rd vibration suppression parts) of the roughly ring-type of rubber system.Inboard vibration suppression parts 45 contact with the right flank of axle connecting portion 25 and 38 of the connecting portions of endless member 35 respectively.Inboard vibration suppression parts 45 have for machine spindle 10 to be inserted logical hole section 46 and inserts two logical breach 47 for two bolt members 42 (this is equivalent to fixed part).Horn section side tube part 27 within it side has position of rotation detecting sensor (not shown) for detection of the position of rotation of handwheel 20.
The below describes the effect of the Sewing machines M of top explanation.
Sewing machines M is in sewing, and the shank up-down mechanism drives up and down shank 6, and the thread take-up tension lever luffing mechanism swings up and down thread take-up tension lever 5.Shank up-down mechanism and thread take-up tension lever luffing mechanism produce vibration.This vibration is delivered to machine spindle 10.The vibration that is delivered to machine spindle 10 is delivered to handwheel 20.Because outboard vibrations suppresses parts 30, inboard vibration suppression parts 45, endless member 35 and two cylindrical shells 41 and suppresses to be delivered to the vibration of handwheel 20, so can reduce the noise of the generation of vibration of handwheel 20.
The below carries out simple explanation to the measurement result of the noise of the generation of vibration of handwheel 20.The noise that does not have the Sewing machines M in the past of outboard vibrations inhibition parts 30, inboard vibration suppression parts 45, endless member 35 and two cylindrical shells 41 is about 82.5db, and the noise of Sewing machines M of the present invention is about 78db.
As mentioned above, handwheel 20 has a section 21 and axle connecting portion 25.It is rubber systems that outboard vibrations suppresses parts 30, and has annulus 32 and surrounding wall portion 31.Annulus 32 sets with the state of the inner face of the end wall 23 that is close to a section 21.Surrounding wall portion 31 forms one with annulus 32, and contacts with the inner peripheral surface face of side wall portion 22.Outboard vibrations suppresses parts 30 can absorb the vibration that is delivered to a section 21 by axle connecting portion 25.Is formed by the material different from cylinder section 21 because outboard vibrations suppresses parts 30, therefore vibrate with the vibration number different from the vibration of cylinder section 21.Thereby outboard vibrations suppresses the vibration that parts 30 can suppress a section 21.
As mentioned above, because Sewing machines M can suppress the vibration of handwheel 20, therefore can reduce the noise of the generation of vibration of handwheel 20.The simple structure that Sewing machines M can be provided with the inner face in cylinder section 21 outboard vibrations inhibition parts 30 reduces noise at an easy rate.Described noise countermeasure can be applicable on the handwheel 20 of existing Sewing machines.Suppress parts 30 even outboard vibrations is set separately, the weight of handwheel 20 also increases hardly, thereby does not have influence on the High Rotation Speed of machine spindle 10.
In Sewing machines M, plastic endless member 35 sets with the form that suppresses the inner face of parts 30, path wall section 24 and axle connecting portion 25 along cylinder section 21, outboard vibrations and cover the inner face of these parts.Because endless member 35 can interdict the noise that handwheel 20 produces, therefore can reduce significantly the noise of the generation of vibration of handwheel 20.
Sewing machines M is provided with the inboard vibration suppression parts 45 of rubber system between axle connecting portion 25 and endless member 35.Inboard vibration suppression parts 45 absorb the vibration that is delivered to axle connecting portion 25.Because inboard vibration suppression parts 45 are formed by the material different from axle connecting portion 25, therefore vibrate with the vibration number different from the vibration of axle connecting portion 25.Thereby inboard vibration suppression parts 45 can suppress the vibration of axle connecting portion 25.Sewing machines M can further suppress the vibration of handwheel 20.
In Sewing machines M, by two bolt members 42 endless member 35 is connected connection with the axle connecting portion.The cylindrical shell 41 that is installed on respectively the rubber system of two bolt members 42 reduces the vibration that is delivered to endless member 35 from bolt member 42.Cylindrical shell 41 can suppress the vibration of endless member 35 significantly, and then can further suppress the vibration of handwheel 20.
Ease for operation when guaranteeing manual operation handwheel 20 has formed recess 43 in the inboard of endless member 35.Therefore, Sewing machines M can under the state of the sound isolation property energy that does not lose endless member 35, guarantee the ease for operation of handwheel 20.
The below to partial alteration the variation of above-described embodiment describe.
1) as the vibration suppression parts, the outboard vibrations that also can be replaced by the parts of the ring-type of the inner peripheral surface that only contacts side wall portion 22 setting in the inboard of cylinder section 21 suppresses parts 30.During described situation, Sewing machines can save endless member 35, inboard vibration suppression parts 45, bolt member 42 and cylindrical shell 41.Therefore, the sewing function further suppresses the increase of the weight of handwheel 20.
2) outboard vibrations inhibition parts 30, inboard vibration suppression parts 45 and cylindrical shell 41 also can be made of the synthetic resin material.As long as elastomeric material all can.
3) the outboard vibrations annulus 32 that suppresses parts 30 also can be adapted to the inner face butt with end wall 23.
4) end wall 23 of cylinder section 21 also can form directly and be connected with axle connecting portion 25.
Claims (11)
1. a Sewing machines comprises handwheel, and this handwheel is fixed in an end of machine spindle, and can be equipped on manually the outside of horn section, it is characterized in that:
Described handwheel (20) has axle connecting portion (25) and cylinder section (21), described axle connecting portion (25) is fixed on the described machine spindle (10), described cylinder section (21) is positioned at a side opposite with described horn section (3) with respect to described axle connecting portion (25)
This Sewing machines (M) is provided with the first vibration suppression parts (31), and these the first vibration suppression parts (31) suppress to be delivered to from described machine spindle (10) vibration of described cylinder section (21),
Described cylinder section (21) is made of end wall (23) and side wall portion (22), described end wall (23) is connected with a side of described axle connecting portion (25), described side wall portion (22) extends to a side opposite with described horn section (3) from described end wall (23), inner peripheral surface at described side wall portion (22) is provided with described the first vibration suppression parts (31)
Described the first vibration suppression parts (31) are made of elastomeric material.
2. Sewing machines as claimed in claim 1 is characterized in that: have the second vibration suppression parts (32), these the second vibration suppression parts (32) are configured to and the inner face butt of described end wall (23) or close.
3. Sewing machines as claimed in claim 2, it is characterized in that: be provided with endless member (35) and fixed part (42), described endless member (35) covers described the first vibration suppression parts (31) and described the second vibration suppression parts (32) from a side opposite with described horn section (3), and described fixed part (42) is fixed in described axle connecting portion (25) with described endless member (35).
4. Sewing machines as claimed in claim 3, it is characterized in that: be provided with the 3rd vibration suppression parts (45), the 3rd vibration suppression parts (45) are disposed between described axle connecting portion (25) and the described endless member (35).
5. Sewing machines as claimed in claim 4, it is characterized in that: described fixed part (42) is made of bolt member (42), described Sewing machines (M) is provided with the 4th vibration suppression parts (41), for reducing the vibration that is delivered to described endless member (35) from described bolt member (42), described the 4th vibration suppression parts (41) are installed on the described bolt member (42).
6. such as claim 3 or 4 described Sewing machiness, it is characterized in that: the ease for operation when guaranteeing the described handwheel of manual operation (20) is formed with recess (43) in the inboard of described endless member (35).
7. Sewing machines as claimed in claim 5 is characterized in that: the ease for operation when guaranteeing the described handwheel of manual operation (20) is formed with recess (43) in the inboard of described endless member (35).
8. such as claim 1 or 3 described Sewing machiness, it is characterized in that: described the first vibration suppression parts (31) are made of synthetic resin or rubber.
9. Sewing machines as claimed in claim 2 or claim 3, it is characterized in that: described the second vibration suppression parts (32) are made of synthetic resin or rubber.
10. Sewing machines as claimed in claim 4, it is characterized in that: described the 3rd vibration suppression parts (45) are made of synthetic resin or rubber.
11. Sewing machines as claimed in claim 5 is characterized in that: described the 4th vibration suppression parts (41) are made of synthetic resin or rubber.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008121341 | 2008-05-07 | ||
| JP2008-121341 | 2008-05-07 | ||
| JP2008121341A JP2009268681A (en) | 2008-05-07 | 2008-05-07 | Sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101575777A CN101575777A (en) | 2009-11-11 |
| CN101575777B true CN101575777B (en) | 2013-01-16 |
Family
ID=41270840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910138843 Expired - Fee Related CN101575777B (en) | 2008-05-07 | 2009-04-30 | Sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2009268681A (en) |
| CN (1) | CN101575777B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109837663B (en) * | 2017-11-24 | 2021-02-05 | 杰克缝纫机股份有限公司 | Sewing machine and noise reduction device thereof |
| CN108315894A (en) * | 2018-04-08 | 2018-07-24 | 苏州胜璟电磁科技有限公司 | A kind of balancing point electromagnet |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3552338A (en) * | 1969-06-06 | 1971-01-05 | Singer Co | Means for elimination of end play in a sewing machine |
| CN1123348A (en) * | 1994-07-27 | 1996-05-29 | 兄弟工业株式会社 | Vibration control device for sewing machine |
| JP2552423Y2 (en) * | 1991-09-25 | 1997-10-29 | ブラザー工業株式会社 | sewing machine |
| CN2853852Y (en) * | 2005-12-28 | 2007-01-03 | 上海申贝(集团)股份有限公司 | Shokc-proof connection device for head |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2363807A (en) * | 1941-05-24 | 1944-11-28 | Union Special Machine Co | Sewing machine |
| JPS5463954A (en) * | 1977-10-28 | 1979-05-23 | Mitsubishi Electric Corp | Sewing machine |
-
2008
- 2008-05-07 JP JP2008121341A patent/JP2009268681A/en active Pending
-
2009
- 2009-04-30 CN CN 200910138843 patent/CN101575777B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3552338A (en) * | 1969-06-06 | 1971-01-05 | Singer Co | Means for elimination of end play in a sewing machine |
| JP2552423Y2 (en) * | 1991-09-25 | 1997-10-29 | ブラザー工業株式会社 | sewing machine |
| CN1123348A (en) * | 1994-07-27 | 1996-05-29 | 兄弟工业株式会社 | Vibration control device for sewing machine |
| CN2853852Y (en) * | 2005-12-28 | 2007-01-03 | 上海申贝(集团)股份有限公司 | Shokc-proof connection device for head |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2002-153692A 2002.05.28 |
| JP第2552423号Y2 1997.10.29 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101575777A (en) | 2009-11-11 |
| JP2009268681A (en) | 2009-11-19 |
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