CN102733116B - Sewing machine - Google Patents
Sewing machine Download PDFInfo
- Publication number
- CN102733116B CN102733116B CN201210214463.9A CN201210214463A CN102733116B CN 102733116 B CN102733116 B CN 102733116B CN 201210214463 A CN201210214463 A CN 201210214463A CN 102733116 B CN102733116 B CN 102733116B
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- CN
- China
- Prior art keywords
- horn
- sewing machine
- cooling fan
- machine electromotor
- extraneous gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
This sewing machine includes the sewing machine motor 15 provided in one end part of an arm portion 4, and a cooling fan 16 driven by the sewing machine motor 15, wherein the cooling fan 16 is disposed at a position near the sewing machine motor 15, and is configured to generate an air flow flowing in parallel with the axis of the sewing machine motor 15 in a direction separating from the sewing machine motor 15, and an outside air intake port 21 for drawing outside air sucked into the cooling fan 16 is formed in a motor cover 11 attached to a leg post portion 3.
Description
The application is dividing an application of applicant's application for a patent for invention that be " 200910004100.0 " in submission on 02 09th, 2009, application number, that denomination of invention is " Sewing machines ".
Technical field
The sewing machine electromotor that the present invention relates to a kind of driving main shaft is arranged at the Sewing machines of horn inside.
Background technology
Sewing machines has the frame that the pillar of erectting by the upper surface at base supports the base end part of horn.Horn within it portion has main shaft.Main shaft is rotated by the driving of sewing machine electromotor.Main shaft drives is arranged at needle bar drive device, thread take-up tension lever driving mechanism of the leading section of horn etc.
The type of drive of Sewing machines has direct drive mode.The Sewing machines of direct drive mode makes sewing machine electromotor be arranged at horn inside.The direct driving main shaft of sewing machine electromotor.Main shaft has cooling fan.The cooling sewing machine electromotor that is disposed at horn inside of cooling fan.
The leading section of horn (the other end that is equivalent to technical scheme 1) is provided with the peristome passing for thread take-up tension lever, and cooling fan is from suction extraneous gas such as this peristomes, thereby generation is to the mobile air stream of sewing machine electromotor.Sewing machine electromotor is arranged at the base end part (end that is equivalent to technical scheme 1) of the horn of shore supports.The air stream that cooling fan produces is before the leading section from horn arrives base end part, and temperature rising is carried out in the heating of the slide unit by horn inside.Sewing machines is in the past that the air stream after temperature rises blows to sewing machine electromotor, is therefore difficult to cooling sewing machine electromotor effectively.
The Sewing machines that Japanese Laid-Open Patent Publication is recorded for 2006 No. 326032 has the extraneous gas suction inlet being provided with on the upper arm of the mid portion of the length direction of horn.Cooling fan is disposed at the base end side of horn with respect to extraneous gas suction inlet.Small-sized fan is disposed at the opposition side (front of horn) of cooling fan across extraneous gas suction inlet.Cooling fan sucks extraneous gas from extraneous gas suction inlet, produces to the mobile air stream of sewing machine electromotor.Extraneous gas suction inlet be positioned at the base end part that is arranged at horn sewing machine electromotor near, the temperature that therefore suppresses to blow to the air stream of sewing machine electromotor rises, thereby can improve cooling effect.
Small-sized fan sucks extraneous gas from extraneous gas suction inlet, produces to the mobile air stream of the front of horn.The air stream that small-sized fan produces make horn leading section in press to malleation (pressure higher than atmospheric pressure), can anti-principal vertical line bits, cotton-wool etc. enters horn inside.
The Sewing machines that Japanese Laid-Open Patent Publication is recorded for 2006 No. 326032 has the extraneous gas suction inlet that is installed on two fans (cooling fan and small-sized fan) of main shaft and sucks extraneous gas special use, therefore has complex structure, problem that cost is high.
Summary of the invention
The object of the invention is to carry out the sewing machine electromotor of cooling horn inside effectively by thering is the simple structure of a cooling fan.
The Sewing machines of technical scheme 1 comprises the pillar of the upper surface that is erected in base, one end is by the horn of described shore supports, the sewing machine electromotor of driving main shaft and the cooling fan of cooling described sewing machine electromotor, this cooling fan is fixed on main shaft, it is inner that described cooling fan and described sewing machine electromotor are disposed at described horn, there is the extraneous gas suction inlet forming in a part for described pillar, make described cooling fan and sewing machine electromotor adjacent and configure, described cooling fan is from described extraneous gas suction inlet to described pillar with the inner extraneous gas that sucks of horn, produce the surrounding of the described sewing machine electromotor of process to the mobile air stream in the other end of described horn.
Cooling fan sucks extraneous gas from the extraneous gas suction inlet being arranged at the part of pillar, produces the air stream mobile from an end to the other end horn is inner.Sewing machine electromotor is disposed at an end of the horn that is supported on pillar top.Under the state of the low temperature of the air stream that cooling fan produces before temperature rises, pass through sewing machine electromotor around, effectively cooling sewing machine electromotor.Air flow after cooling sewing machine electromotor is to the other end of horn, and from for for thread take-up tension lever through and the peristome etc. that is arranged at horn the other end flows out to outside.The interior pressure of the other end of horn becomes malleation by the effect of air stream, can anti-principal vertical line bits, cotton-wool etc. enters horn inside.
In the Sewing machines of technical scheme 2, described cooling fan has the diameter larger than the diameter of described sewing machine electromotor.
The air stream that cooling fan produces around flows through the whole of the diameter sewing machine electromotor less than cooling fan, effectively cooling sewing machine electromotor.
In the Sewing machines of technical scheme 3, described extraneous gas suction inlet doubles as for the peristome that spanner passes that backstitches protruding from before described pillar.
Extraneous gas suction inlet doubles as for backstitching spanner through required peristome.Therefore in Sewing machines, without the peristome that the special use of suction extraneous gas is set, maybe can reduce the peristome that sucks extraneous gas special use, can achieve the goal by simple structure.
In the Sewing machines of technical scheme 4 or 5, the horn inside between described cooling fan and the other end of described horn is provided with the wall of a part of blocking described air stream.
Wall blocks a part for the air stream of cooling fan generation, and restriction arrives the air mass flow of the other end of horn.Therefore operating personnel are difficult for touching the wind that peristome through passing for thread take-up tension lever etc. blows to the outside of horn, can cosily make.Wall energy enough prevents flow backwards a go back to end of horn of the air after the other end of horn temperature rises.Air after sewing machine electromotor can not rise with temperature contacts, the function cooling sewing machine electromotor effectively of therefore sewing.
In the Sewing machines of technical scheme 6 or 7, described wall doubles as the parts of bearings of the bearing that supports described main shaft.
Parts of bearings is the required parts of the bearing of supports main shaft.Because parts of bearings doubles as wall, therefore in Sewing machines without special-purpose wall is set, can simplified structure.
Accompanying drawing explanation
Fig. 1 is the isometric front view of Sewing machines of the present invention.
Fig. 2 is the rear isometric view that the Sewing machines of the present invention of back side lid is not installed.
Fig. 3 amplifies the part of sewing machine electromotor and cooling fan and the stereogram that represents.
The specific embodiment
Below with reference to the accompanying drawing that represents better embodiment, the present invention is described in detail.
Fig. 1 be take the outside of paper and is positive.As shown in Figure 1, the frame F of Sewing machines 1 of the present invention has base 2, pillar 3 and horn 4.The form setting that pillar 3 is erect upward with the right side part at base 2.The base end part of the upper support horn 4 of pillar 3 (end).The leading section of horn 4 (the other end) extends to left with the form relative with base 2.
The frame F of Sewing machines 1 has thread take-up tension lever 7 and the shank 8 of the leading section of being located at horn 4.Thread take-up tension lever 7 comes direction up and down to swing by the action of the thread take-up tension lever driving mechanism (not shown) of horn 4 inside.The front end of thread take-up tension lever 7 is given prominence to outside from the longer peristome 6 of above-below direction of being located at horn 4 front surfaces.Shank 8 comes direction up and down to move back and forth by the action of the needle bar drive device (not shown) of horn 4 inside.Suture needle 9 is installed on the lower end of the shank 8 outstanding to the below of horn 4.As shown in Figure 2, the frame F of Sewing machines 1 has the main shaft 20 of the form configuration that direction is extended to the left and right with the inside at horn 4.Main shaft 20 is connected with sewing machine electromotor 15.Sewing machine electromotor 15 is disposed at the inner side of the base end part of the horn 4 that is supported on pillar 3 tops.Main shaft 20 rotates by the driving of sewing machine electromotor 15.The left end of main shaft 20 is connected with thread take-up tension lever driving mechanism with needle bar drive device.Needle bar drive device and thread take-up tension lever driving mechanism move by the rotation of main shaft 20.As shown in Figures 2 and 3, main shaft 20 has near cooling fan 16 and the belt pulley 18 being installed on sewing machine electromotor 15.The frame F of Sewing machines 1 has the lower shaft (not shown) of the form configuration that direction is extended to the left and right with the inside at base 2.Lower shaft is connected with main shaft 20 by being wound in the belt (not shown) of belt pulley 18.Lower shaft rotates by the rotation of main shaft 20, and drives rotating shuttle and the feed mechanism (not shown) that is arranged at base 2 ends (left part).The frame F of Sewing machines 1 is provided with feeding adjusting knob 10 on pillar 3.Operating personnel can change by the operation of feeding adjusting knob 10 actuating quantity of the feed mechanism of the left part of being located at base 2.This change is carried out for the feeding amount of the processing cloth (not shown) of adjusting base 2 upper surfaces.
The frame F of Sewing machines 1 is provided with manual pulley 14 in the right part of horn 4.Manual pulley 14 is installed on to the end of main shaft 20 outstanding outside the right part of horn 4.Operating personnel can be by the operation of manual pulley 14 manual rotation main shaft 20.Suture needle 9 comes direction up and down to move by the action of needle bar drive device, and in order to confirm the down position of this suture needle 9, the manual rotation of main shaft 20 is carried out when sewing starts.
Cooling fan 16 is installed on than belt pulley 18 near sewing machine electromotor 15 side places.Cooling fan 16 is adjacent with sewing machine electromotor 15.Cooling fan 16 rotates by the rotation of main shaft 20.By the rotation of cooling fan 16, at the inner air stream producing from sewing machine electromotor 15 departure directions of horn 4.The air stream that cooling fan 16 produces flows to right-hand (among Fig. 2) from left.The diameter of cooling fan 16 is greater than the diameter of sewing machine electromotor 15.
Frame F has peristome (not shown) on the sidewall (the right wall side in Fig. 1) of pillar 3 parts.The formation position of peristome is near and the below of the installation site of sewing machine electromotor 15.Motor lid 11 covers described peristome.As illustrated in fig. 1 and 2, the motor lid 11 as pillar 3 parts has extraneous gas suction inlet 12a and the 12b being respectively equipped with in the bottom of front panel 11a and rear board 11b.Extraneous gas suction inlet 12a and 12b are the holes of the longer rectangle of above-below direction.The extraneous gas suction inlet 12a being provided with on front panel 11a doubles as the peristome that spanner 13 passes that backstitches extending for the inside from pillar 3.
When carrying out the backstitching of the temporary transient reversion of feed direction of processing cloth, operation backstitches spanner 13.As shown in Figure 1, backstitch spanner 13 through extraneous gas suction inlet 12a, and parallel with the front surface of pillar 3 and extend to left.When backstitching, operating personnel depress the front end that backstitches spanner 13 downwards.
The described peristome of the sidewall of pillar 3 parts by frame F, the internal communication of extraneous gas suction inlet 12a and 12b and pillar 3 and horn 4.When cooling fan 16 is rotated, Sewing machines 1 comes to pillar 3 and the inner extraneous gas that sucks of horn 4 by extraneous gas suction inlet 12a and 12b.
As shown in Figure 3, main shaft 20 has bearing 19 in the left side of belt pulley 18.As shown in Figure 2, bearing 19 is supported on the inner side of the base end part of horn 4 by parts of bearings 17.The inner face of the bottom of parts of bearings 17 and horn 4 is close to.The top of parts of bearings 17 and both sides are not close to the inner face of horn 4, and and the inner face of horn 4 between be provided with less gap.Parts of bearings 17 forms the wall of a part of blocking the air stream that the rotation because of cooling fan 16 produces.The air stream that cooling fan 16 produces flows out to the leading section of horn 4 through being formed at the top of parts of bearings 17 and the gap of both sides.
Cooling effect to Sewing machines 1 of the present invention describes.
Making in action of Sewing machines 1, the rotation of the main shaft 20 driving by sewing machine electromotor 15, cooling fan 16 rotates all the time.The cooling fan 16 of rotation sucks extraneous gas from being located at extraneous gas suction inlet 12a and the 12b of motor lid 11 to pillar 3 and horn 4 inside by the peristome of pillar 3 sidewalls, and produces to the mobile air stream of the leading section of horn 4.From the air stream of extraneous gas suction inlet 12a and 12b suction, the inner rising of pillar 3, through the surrounding of sewing machine electromotor 15, flow.Sewing machine electromotor 15 with just suck after the low extraneous gas of temperature contact, so Sewing machines 1 cooling sewing machine electromotor 15 effectively.
The diameter of cooling fan 16 is greater than the diameter of sewing machine electromotor 15.Therefore the air flow that cooling fan 16 produces to whole sewing machine electromotor 15 around.Cooling fan 16 is cooling sewing machine electromotor 15 effectively.
The air stream that cooling fan 16 produces arrives the leading section of horn 4 through the top of parts of bearings 17 and the gap of both sides.Arrive the air stream of horn 4 leading sections through flowing out to outside in order to be located at peristome 6 grades of horn 4 front surfaces for thread take-up tension lever 7 passes.Because of the effect of air stream, in the leading section of horn 4, press to malleation, therefore can anti-principal vertical line bits, cotton-wool etc. enters horn 4 inside.
At the extraneous gas suction inlet 12a of the front panel 11a of motor lid 11 upper shed, double as for backstitching the peristome that spanner 13 passes.Therefore in Sewing machines 1, without the peristome that the special use of suction extraneous gas is set, maybe can reduce the peristome that sucks extraneous gas special use, can simplified structure.
Parts of bearings 17 conducts are blocked to the wall of a part for the mobile air stream of the leading section of horn 4 and are worked.This wall energy reduces the air quantity that peristome 6 grades from passing for thread take-up tension lever 7 are blown away to the front portion of horn 4, therefore can alleviate the unhappy sensation that operating personnel feel when touching wind.
The air stream mobile to horn 4 leading sections passes through with high speed on the top of parts of bearings 17 and the gap of both sides.Air after horn 4 leading section temperature rise can not flow back to the base end part of the horn 4 that disposes sewing machine electromotor 15.Described wall doubles as for the required parts of bearings 17 of the bearing 19 of supports main shaft 20.Therefore in Sewing machines 1 without special-purpose wall is set, can simplified structure.
The following describes the alter mode that embodiment to illustrating has carried out partial alteration above.
1) extraneous gas suction inlet 12a and 12b also can be formed in the other parts of the motor lids 11 such as side panel of motor lid 11.Extraneous gas suction inlet 12a and 12b also can be formed on the front surface of pillar 3 or on rear surface.
2) described wall also can be arranged with parts of bearings for 17 minutes.As long as this wall, disposing between the base end part of horn 4 and the leading section of horn 4 of cooling fan 16, just can be arranged at position arbitrarily.
Known from described detailed explanation, Sewing machines of the present invention has the extraneous gas suction inlet of a part that is formed at pillar, and in the base end part of the horn of shore supports, has near the cooling fan being disposed at sewing machine electromotor.Cooling fan sucks extraneous gas from extraneous gas suction inlet, and the surrounding that produces process sewing machine electromotor is to the mobile air stream of horn leading section.Sewing machine electromotor be positioned at extraneous gas suction inlet near, so air stream blows on sewing machine electromotor under the low state of the temperature just having sucked.Thereby sewing function is cooling Sewing machines effectively.
Claims (2)
1. a Sewing machines, comprising:
Pillar, this pillar is erected in the upper surface of base;
Horn, an end of this horn is by described shore supports;
Sewing machine electromotor, this sewing machine electromotor driving main shaft; With
Cooling fan, the cooling described sewing machine electromotor of this cooling fan,
Described cooling fan is fixed on main shaft, and described cooling fan and described sewing machine electromotor are disposed at the inside of described horn, it is characterized in that:
Have extraneous gas suction inlet, this extraneous gas suction inlet is formed in a part for described pillar,
Make described cooling fan and sewing machine electromotor adjacent and configure,
The inside of described cooling fan from described extraneous gas suction inlet to described pillar and horn sucks extraneous gas, produces the surrounding of the described sewing machine electromotor of process to the mobile air stream in the other end of described horn,
Horn inside between described cooling fan and the other end of described horn is provided with the wall of a part of blocking described air stream,
The bottom of described wall and the inner face of described horn are close to, and between the top of described wall and both sides and the inner face of described horn, are provided with gap,
Described wall doubles as the parts of bearings of the bearing that supports described main shaft.
2. Sewing machines as claimed in claim 1, is characterized in that: described cooling fan has the diameter larger than the diameter of described sewing machine electromotor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008030547A JP2009189412A (en) | 2008-02-12 | 2008-02-12 | Sewing machine |
| JP2008-030547 | 2008-02-12 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100041000A Division CN101509182B (en) | 2008-02-12 | 2009-02-09 | Sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102733116A CN102733116A (en) | 2012-10-17 |
| CN102733116B true CN102733116B (en) | 2014-11-05 |
Family
ID=41001705
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210214463.9A Expired - Fee Related CN102733116B (en) | 2008-02-12 | 2009-02-09 | Sewing machine |
| CN2009100041000A Expired - Fee Related CN101509182B (en) | 2008-02-12 | 2009-02-09 | Sewing machine |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100041000A Expired - Fee Related CN101509182B (en) | 2008-02-12 | 2009-02-09 | Sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2009189412A (en) |
| CN (2) | CN102733116B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705586B (en) * | 2009-11-02 | 2012-10-03 | 顾飞龙 | Fan assembly structure of direct drive motor of sewing machine |
| CN101736540B (en) * | 2009-12-02 | 2013-05-01 | 顾飞龙 | Mechanism heat-dissipating device of sewing machine adopting direct drive motor |
| CN104047119A (en) * | 2014-05-23 | 2014-09-17 | 王水争 | Air pressure countercurrent bag sewing machine |
| CN110396775A (en) * | 2019-08-19 | 2019-11-01 | 宁波申洲针织有限公司 | A kind of automatic spelling body rib |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003019379A (en) * | 2001-05-01 | 2003-01-21 | Juki Corp | Cooling device for sewing machine |
| CN1676728B (en) * | 2004-03-29 | 2012-03-28 | 杜尔克普—阿德勒股份公司 | Sewing machine |
| JP2006326032A (en) * | 2005-05-27 | 2006-12-07 | Brother Ind Ltd | Dust-proof device of sewing machine |
| JP2007260060A (en) * | 2006-03-28 | 2007-10-11 | Brother Ind Ltd | Dust removal structure of sewing machine |
-
2008
- 2008-02-12 JP JP2008030547A patent/JP2009189412A/en active Pending
-
2009
- 2009-02-09 CN CN201210214463.9A patent/CN102733116B/en not_active Expired - Fee Related
- 2009-02-09 CN CN2009100041000A patent/CN101509182B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009189412A (en) | 2009-08-27 |
| CN101509182B (en) | 2012-10-24 |
| CN102733116A (en) | 2012-10-17 |
| CN101509182A (en) | 2009-08-19 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20220209 |
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| CF01 | Termination of patent right due to non-payment of annual fee |