CN1495313A - Oil-leaking-proof device for sewing machine - Google Patents
Oil-leaking-proof device for sewing machine Download PDFInfo
- Publication number
- CN1495313A CN1495313A CNA031249159A CN03124915A CN1495313A CN 1495313 A CN1495313 A CN 1495313A CN A031249159 A CNA031249159 A CN A031249159A CN 03124915 A CN03124915 A CN 03124915A CN 1495313 A CN1495313 A CN 1495313A
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- Prior art keywords
- oil
- aforementioned
- containment member
- shank
- leakage device
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- 238000009958 sewing Methods 0.000 title claims abstract description 62
- 239000003921 oil Substances 0.000 claims abstract description 202
- 238000007789 sealing Methods 0.000 claims abstract description 97
- 239000010687 lubricating oil Substances 0.000 claims abstract description 42
- 230000002093 peripheral effect Effects 0.000 claims abstract description 22
- 238000006073 displacement reaction Methods 0.000 claims description 57
- 239000000463 material Substances 0.000 claims description 23
- 239000000428 dust Substances 0.000 abstract description 12
- 230000001050 lubricating effect Effects 0.000 abstract description 9
- 238000005299 abrasion Methods 0.000 abstract 2
- 230000003449 preventive effect Effects 0.000 abstract 1
- 230000008093 supporting effect Effects 0.000 description 53
- 230000000694 effects Effects 0.000 description 28
- 238000007790 scraping Methods 0.000 description 7
- 229920000459 Nitrile rubber Polymers 0.000 description 5
- 230000003746 surface roughness Effects 0.000 description 5
- 102220005308 rs33960931 Human genes 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 102200003959 rs11556986 Human genes 0.000 description 1
- 102200082816 rs34868397 Human genes 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/08—Arrangements for covering or protecting the ways
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Sealing Of Bearings (AREA)
Abstract
Provided is an oil leakage preventive structure of a sewing machine having high sealing performance and high durability.A guide member is inserted, and an oil seal part and a dust seal part of a seal member installed in the guide member contact with an outer peripheral surface of a driving shaft reciprocatingly displaced in the axial direction in a state of being lubricated with lubricating oil. The oil seal part prevents leakage of the lubricating oil by increasing sliding resistance when the driving shaft is displaced so as to separate from a lubricating position, and prevents abrasion by reducing the sliding resistance when the driving shaft is displaced so as to approach the lubricating position. The dust seal part prevents intrusion of a particulate by increasing the sliding resistance when the driving shaft is displaced so as to approach the lubricating position, and prevents the abrasion by reducing the sliding resistance when the driving shaft is displaced so as to separate from the lubricating position.
Description
Technical field
The anti-oil leakage device that the present invention relates to prevent to be supplied to the oil leak of driving shaft to use, this driving shaft pass be fixed on the ways on the sewing machine main body and be provided with, along the axis direction shift reciprocately.
Background technology
Figure 10 is the profile of the anti-oil leakage device 1 of expression prior art.In Sewing machines,, be arranged on the lower end of compressor arm 2 with the presser feet of needle plate co-operating, clamping sewn object.Compressor arm 2 can be supported along its axis direction A freedom with displacement by bearing components 3, is lubricated with lubricating oil between compressor arm 2 and bearing components 3.Owing to, might stain line and sewn object when this lubricating oil during along compressor arm 2 whereabouts, so, containment member 4 is remained on the bottom of bearing components 3, with the compressor arm butt it is sealed.
In addition, as other prior art,, the containment member of using in the valve stem of internal combustion engine that is called seal valve stem (man's cap used in ancient times axle シ one Le) is set can freely supporting with displacement on the bearing components of the shank that is provided with pin along its axis direction.This seal valve stem also is to be used to prevent the pollution to line and sewn object (opening flat 10-43456 communique with reference to the spy) that caused by lubricating oil.
In order to improve the quality of making goods, requirement can prevent the high structure of sealing of the pollution that caused by aforementioned lubricating oil reliably.In order to improve sealing, can increase the resistance to sliding of containment member 4 and compressor arm 2 or shank, improve scraping of lubricating oil and get effect, but like this, the wearing and tearing of containment member 4 are violent, exist the problem that durability greatly reduces.In aforementioned prior art, in order to reach sealing, only make containment member 4 and compressor arm 2 or shank butt simply, after improving sealing, can not form durability height, the long-time structure that keeps high leakproofness constantly.
Summary of the invention
Thereby, the objective of the invention is, a kind of anti-oil leakage device with Sewing machines of high sealing and high durability is provided.
The present invention is a kind of anti-oil leakage device of Sewing machines, comprising sewing machine main body 23, be fixed on the ways 29 of the ring-type on the sewing machine main body 23,30,61, in sewing machine main body 23, be supplied to lubricating oil, the aforementioned ways 29 of break-through, 30,61 driving shafts 12 that driven by shift reciprocately along axis direction, 60, be installed in ways 29,30, on 61, interior perimembranous and driving shaft 12, the containment member 33 of 60 the contacted ring-type of outer peripheral face, 34,34a, 34b, 66,66c, in the Sewing machines anti-oil leakage device of 66d, it is characterized by
On the interior perimembranous of aforementioned containment member 33,34,34a, 34b, 66,66c, 66d, form oil sealing portion 50,80, wherein, described oil sealing portion 50,80, compare with the resistance to sliding in the shift reciprocately of aforementioned driving shaft 12,60, near the direction displacement of the lubricated position 44,67 that is lubricated by lubricating oil the time, the resistance to sliding in the shift reciprocately of aforementioned driving shaft 12,60, to away from the direction displacement of aforementioned lubricated position 44,67 time is big.
The anti-oil leakage device of described Sewing machines, it is characterized by, on the interior perimembranous of aforementioned containment member 33,34,34a, 66,66c, compare with aforementioned oil sealing portion 50,80 away from lubricated position side, form oil seal part 52,82, wherein, described oil seal part 52,82, compare with the resistance to sliding in the shift reciprocately of aforementioned driving shaft 12,60, to away from the direction displacement of lubricated position 44,67 time, the resistance to sliding in the shift reciprocately of aforementioned driving shaft 12,60, near the direction displacement of aforementioned lubricated position 44,67 time is big.
The anti-oil leakage device of described Sewing machines is characterized by, and the oil sealing portion 50,51,80,81 of aforementioned containment member 33,34,66 is set up a plurality of along axis direction.
The anti-oil leakage device of described Sewing machines is characterized by, and the oil sealing portion 50,51,80,81 of aforementioned containment member 33,34,66 is set up a plurality of along axis direction.
The anti-oil leakage device of described Sewing machines is characterized by, and aforementioned containment member 33,34,34a, 34b, 66,66c, 66d are made of the flexible and flexible material of having of excellent in wear resistance.
The anti-oil leakage device of described Sewing machines is characterized by, and aforementioned containment member 33,34,34a, 66,66c are made of the flexible and flexible material of having of excellent in wear resistance.
The anti-oil leakage device of described Sewing machines is characterized by, and aforementioned containment member 33,34,66 is made of the flexible and flexible material of having of excellent in wear resistance.
The anti-oil leakage device of described Sewing machines is characterized by, and aforementioned containment member 33,34,66 is made of the flexible and flexible material of having of excellent in wear resistance.
The anti-oil leakage device of described Sewing machines is characterized by, and aforementioned driving shaft is the shank 12 that keeps pin to use, and aforementioned containment member 33,34,34a, 34b are installed on the aforementioned ways 29,30 by outer embedding.
The anti-oil leakage device of described Sewing machines is characterized by, and aforementioned driving shaft is the compressor arm 60 that keeps presser feet to use, and aforementioned containment member 66,66c, 66d are installed on the aforementioned ways 61 by embedded.The present invention is a kind of anti-oil leakage device of Sewing machines, has sewing machine main body; Be fixed to the annular ways on the sewing machine main body; In sewing machine main body supplying lubricating oil, pass aforementioned ways along the driven driving shaft in axis direction shift reciprocately ground; In the Sewing machines anti-oil leakage device of the annular seat component that be installed on the ways, interior perimembranous contacts with the outer peripheral face of driving shaft, it is characterized by,
On the interior perimembranous of aforementioned containment member, form oil sealing portion, described oil sealing portion, compare with the resistance to sliding in the shift reciprocately of aforementioned driving shaft, near the direction displacement of the lubricated position that is lubricated by lubricating oil the time, the resistance to sliding in the shift reciprocately of aforementioned driving shaft, to away from the direction displacement of lubricated position the time is big.
According to the present invention, under the state that passes ways, lubricated oil lubrication, the interior perimembranous that is installed in the containment member on the ways contacts with outer peripheral face along the driving shaft of axis direction shift reciprocately.Interior perimembranous at containment member is provided with oil sealing portion, oil sealing portion and driving axial are compared near the resistance to sliding of direction (following also be referred to as sometimes " the direction of closing ") displacement of lubricated position, and the resistance to sliding of driving axial during away from direction (following also be referred to as sometimes " away from the direction ") displacement of lubricated position is big.
At driving axial during, because the part of adhering to lubricating oil of driving shaft with respect to oil sealing portion, is displaced to till the position with lubricated position opposite side away from the direction displacement, so, the resistance to sliding height can improve scraping of lubricating oil and get effect, can prevent the leakage of lubricating oil reliably.Otherwise when the displacement of driving axial direction of closing, because the part of adhering to lubricating oil of driving shaft is positioned at the same side of lubricating the position with respect to oil sealing portion, so resistance to sliding is low, oil sealing portion is not easy wearing and tearing.Like this, the leakage for the lubricating oil of anti-oil leakage device can realize high leakproofness, and, can realize high durability.
According to the present invention, during away from the direction displacement, the resistance to sliding of oil sealing portion is increased, and prevents the leakage of lubricating oil reliably at driving axial, when the displacement of driving axial direction of closing, reduces the resistance to sliding of sealing, and oil sealing portion is not easy to wear.Like this, the leakage for the lubricating oil of anti-oil leakage device can realize high leakproofness, and, can realize high durability.
The present invention, it is characterized by, on the interior perimembranous of aforementioned containment member, forming oil seal part than aforementioned oil sealing portion further from lubricated position side, described oil seal part, in the shift reciprocately of aforementioned driving shaft, to compare with the resistance to sliding to away from the displacement of lubricated locality the time, the resistance to sliding in the shift reciprocately of aforementioned driving shaft near the displacement of lubricated locality the time is big.
According to the present invention, on the interior perimembranous of containment member, oil seal part is set, the structure of oil seal part is, and the resistance to sliding with driving axial during away from the displacement of direction is compared, and the resistance to sliding the during displacement of driving axial direction of closing is big.Because when the displacement of driving axial direction of closing, be positioned at the part of the opposition side of lubricated position with respect to the oil seal part of driving shaft, till moving on to lubricated position with respect to dustproof position, so can increase resistance to sliding, improve atomic scraping and get effect, can prevent the intrusion of particulate reliably to lubricated position.Otherwise, when driving axial during,, be positioned at the opposition side of lubricated position with respect to oil seal part owing to be positioned at the part of the opposition side of lubricated position with respect to the oil seal part of driving shaft away from the direction displacement, so, be difficult to wearing and tearing thereby can reduce the resistance to sliding oil seal part.Like this, the atomic intrusion for anti-oil leakage device can realize high sealing, and realizes high durability.
According to the present invention, when the displacement of driving axial direction of closing, improve the resistance to sliding of dustproof portion, prevent atomic intrusion reliably, during away from the direction displacement, reduce the resistance to sliding of oil seal part at driving axial, oil seal part is difficult to wearing and tearing.Like this, the atomic intrusion for anti-oil leakage device can realize high sealing, and realizes high durability.
The present invention is characterized by, and the oil sealing portion of aforementioned containment member is set up a plurality of along axis direction.
According to the present invention, a plurality of oil sealing portion is set along axis direction.Therefore, can obtain to get effect, improve sealing by scraping of producing of a plurality of oil sealing portion.In addition, can be reduced in the burden that seals in the oil sealing portion, like this, can reduce a resistance to sliding in the oil sealing portion, can suppress wearing and tearing, improve durability.
According to the present invention, when can utilizing a plurality of oil sealing portion to improve sealing, can reduce the burden of a sealing to sealing, can improve durability.
The present invention is characterized by, and aforementioned containment member is made of the flexible and flexible material of having of excellent in wear resistance.
According to the present invention, owing to the material of containment member by excellent in wear resistance constitutes, so, can improve durability.In addition, because containment member is to constitute by having flexible and flexible material, so, by its strain, when can be implemented in the displacement of driving axial direction of closing and to the time away from the direction displacement, the sealing that resistance to sliding is different.
The present invention is characterized by, and aforementioned driving shaft is the shank that keeps pin to use,
Aforementioned containment member is installed on the aforementioned ways by outer embedding.
According to the present invention, can realize with shank relatively, the leak-proof arrangement of high leakproofness and high-durability.
The present invention is characterized by, and aforementioned driving shaft is the compressor arm that keeps presser feet to use,
Aforementioned containment member is installed on the aforementioned ways by embedded.
According to the present invention, can realize with compressor arm relatively, the leak-proof arrangement of high leakproofness and high-durability.
Purpose of the present invention, characteristics and advantage will become apparent by following detailed and accompanying drawing.
Brief description of drawings
Fig. 1 is the profile of expression about the part of the structure of the shank of the anti-oil leakage device of the Sewing machines of a kind of form of implementation of the present invention.
Fig. 2 is the stereogram that expression has the Sewing machines of anti-oil leakage device.
Fig. 3 is the profile of structure of the shank of the relevant anti-oil leakage device of expression.
Fig. 4 is the profile of a part of structure of the compressor arm of the relevant anti-oil leakage device of expression.
Fig. 5 is the profile of structure of the compressor arm of the relevant anti-oil leakage device of expression.
Fig. 6 is the profile about the part of the structure of the shank of the anti-oil leakage device of the Sewing machines of another form of implementation of the present invention.
Fig. 7 is the profile about the part of the structure of the shank of the anti-oil leakage device of the Sewing machines of another form of implementation of the present invention.
Fig. 8 is the profile about the part of the structure of the compressor arm of the anti-oil leakage device of the Sewing machines of another form of implementation of the present invention.
Fig. 9 is the profile about the part of the structure of the compressor arm of the anti-oil leakage device of the Sewing machines of another form of implementation of the present invention.
Figure 10 is the profile of the anti-oil leakage device of expression prior art.
Symbol description
10,10a～10d anti-oil leakage device 11 Sewing machiness
12 shanks, 13 sewing machine main bodies
22 arms, 29,30 shank supporting members
33,34,34a, 34b shank containment member
50,51,80,81 oil sealing portions
52,82 oil seal part, 60 compressor arms
61 compressor arm supporting members
66,66c, 66d compressor arm containment member
The specific embodiment of invention
Describe the preferred embodiments of the present invention with reference to the accompanying drawings in detail.
Fig. 1 is the profile of a part of structure of shank 12 of the anti-oil leakage device 10 of relevant Sewing machines as a kind of form of implementation of the present invention.Fig. 2 is the stereogram that has the Sewing machines 11 of anti-oil leakage device 10.Fig. 3 is the profile of structure of the shank 12 of the relevant anti-oil leakage device 10 of expression.For example, Sewing machines 11 as industrial sewing machines, by needle plate 15 and presser feet 16 clamping sewn objects (omitting among the figure), one side by feeding tooth (omitting among the figure) to predetermined direction of feed B feeding, one side makes driving direction C1, the C2 reciprocating motion of pin 17 pin up and down, promptly can make sewn object.Below, the C1 with one of driving direction of pin is referred to as top C1 sometimes, and another direction C2 of pin is referred to as below C2.
In the part above the needle plate 15 that is disposed at arm 22, on the top 27 and bottom 28 that limits with pair of sidewalls portion in the inner space 31 of arm 22, the shank supporting member 29,30 of stationary annular respectively.Each needle plate supporting member 29,30 as ways disposes each axis along the vertical direction, is configured to coaxial.The described respectively shank 12 as drive member of shank supporting member 29,30 very of break-through coaxially, its axis L12 disposes along the vertical direction, 20 is provided with highlightedly downwards from arm 22 towards needle-bar as the bottom 25 of an end of axis direction to the major general.In this form of implementation, shank 12 is break-through arm 22 along the vertical direction, and is as the upper end 26 of another end of axis direction, outstanding upward from arm 22.
Shank 12 is by each 29,20 supportings of shank supporting member and guiding, can be along the free displacement of its axis L12, shank 12 is being formed cylindric by the outer peripheral face of the shaft portion 45 of each shank supporting member 29,30 guiding at least, each shank supporting member 29,30 is formed cylindric.Shank 12, the drive source outside scheming back and forth drive it to pin driving direction C1, C2 along axis L12 direction to its transferring power.In Sewing machines 11, to give go up spool (outside a figure) of shank 12 from the transmission of power that drive source comes, for example, rotate with rotary speed 6000min-1, shank 12, for example, about more than the 20mm, below the 50mm, be the stroke about below the above 33mm of 31mm in this form of implementation, be driven with the shift reciprocately of per minute 6000 times.At this moment, the highest order of shank 12 is moved speed, for example, and about 6000mm/ more than second, 6500mm/ are below second.
On the bottom 25 of this shank 12, pin 17 is set, pin 17 is by displacement drive.Pin 17 is provided with 3 in this form of implementation, but also can be provided with 1, more than 2 or 4.
For arrive shank 12 along sliding displacement, in arm 22 to shank 12 supplying lubricating oils, with lubricated between shank 12 and each the shank supporting member 29,30.Outside arm 22, the shank containment member 33,34 of ring-type is installed coaxially respectively on each shank supporting member 29,30 in order to prevent this oil leak.Be installed in the shank containment member 33 of the upside on the shank supporting member 29 of the upside on the top 27 of being located at arm 22, be arranged on the upper end of shank supporting member 29.In addition, be installed in the shank containment member 34 of the downside on the shank supporting member 30 of the downside on the bottom 28 of being located at arm 22, be arranged on the bottom of shank supporting member 30.Like this, each shank containment member 33,34, on the end of the lubricating oil supply position opposition side of setting and each shank supporting member 29,30, thereby being arranged on respect to arm 22 becomes on the end in the outside.That is, each shank supporting member 33,34 is arranged on foreign side's side of arm 22 with respect to shank 12 with lubricated position (only expressing the situation of the shank supporting member 30 of relevant downside among the figure) 44 between the shank supporting member 29,30.
Since each shank containment member 33,34, in direction along shank axis L12, thereby, along above-below direction, constituted symmetrically, thus the shank containment member 34 of the described downside of Fig. 1 is elaborated, for the detailed explanation of shank containment member 33 omissions of upside.The shank containment member 34 of downside has periphery base portion 40 roughly cylindraceous, and interior all contact sites 41 of being located at the inboard of periphery base portion 40, and the connecting portion 42 that connects periphery base portion 40 and interior all contact sites 41.Periphery base portion 40 is compared with interior all contact sites 41, and is side-prominent to the lubricated position 44 that is lubricated with lubricating oil.The bottom of shank supporting member 30 is embedded in this periphery base portion 40, and the inner peripheral surface 46 of periphery base portion 40 is closely contacted with the outer peripheral face 47 of shank supporting member 30, and shank containment member 34 is installed on the shank supporting member 30 by outer embedding.Lubricated position 44 is, shank 12 and shank supporting member 30 clamping lubricating oil and mutual opposed position on radial direction.
Under the state of being installed on the shank supporting member 30, interior all contact sites 41 as the interior perimembranous of shank containment member 34, be arranged on foreign side's side than lubricated position 44 more close arms 22, thereby be set at supply position side away from lubricating oil, foreign side's side in this lubricated position 44 contacts with the outer peripheral face 48 of shank 12.Interior all contact sites 41, have from connecting portion 42 and form zone 55 to the oil sealing of the cantilever beam structures of extending near the direction of lubricated position 44 and to radial direction, and from connecting portion 42 to forming zone 56 away from lubricated position 44 and to the dust seal of the inboard cantilever beam structures of extending of radial direction.
Form on the zone 55 at oil sealing, thus along axis direction along near and away from the direction of lubricated position 44, form one or morely, be two oil sealing portions 50,51 in this form of implementation.Each oil sealing portion 50,51 is formed on oil sealing and forms on 55 the interior circumferential portion of zone, be side-prominent in radial direction, at the prominent bar that the whole circumference direction is extended, along with side-prominent in radial direction, thin shape tapers off to a point.Each oil sealing portion 50,51, shown in imaginary line among Fig. 1, in the nature that does not have the external force effect, the inside diameter D 50 of each point, D51 is less than the profile D12 of shank 12.In this form of implementation, near the inside diameter D 50 of the oil sealing portion 50 of lubricating position 44 sides, less than inside diameter D 51 away from the oil sealing portion 51 of lubricating position 44 sides.
Dust seal form the zone 56 on, form one or more, be an oil seal part 52 in this form of implementation.Oil seal part 52 is configured in the side further from lubricated position 44 than each oil sealing portion 50,51.Oil seal part 52 is formed on dust seal and forms on 56 the interior circumferential portion of zone, be side-prominent in radial direction, at the prominent bar that the whole circumference direction is extended, along with side-prominent in radial direction, thin shape tapers off to a point.Oil seal part 52, shown in imaginary line among Fig. 1, in the nature that does not have the external force effect, the inside diameter D 52 of point is less than the profile D12 of shank 12.
This shank containment member 34 from the viewpoint of material, comprises the main body 58 that is made of the flexible and flexible material of having of excellent in wear resistance, and, the heartwood 59 that partly be embedded in the main body 58, the material higher than main body 58 rigidity constitutes.The material of main body 58 as concrete example, can list hydrogenated nitrile-butadiene rubber (HNBR), fluorubber (FKM), and acrylonitrile-butadiene rubber (NBR) etc., in this form of implementation, be hydrogenated nitrile-butadiene rubber.The material of these main bodys 58 as previously described, has flexible and elasticity, can carry out strain, simultaneously, be excellent on mar proof, and then, it is the material of ceiling temperature patience and lower limit temperature patience excellence, at least more than-20 ℃ ,+temperature range below 125 ℃, for example, for hydrogenated nitrile-butadiene rubber, more than-25 ℃ ,+environment below 140 ℃ under, character can not change and can stably use.Heartwood 59 for example, constitutes with cold-rolled steel sheets such as SPCC.This heartwood 59 is set to connecting portion 41 from periphery base portion 40 always, suppresses the distortion of periphery base portion 40 and connecting portion 41, all contact site 55 easy deformation in having only.
Under the state of this shank containment member 34 of shank 12 break-through, interior all contact sites 41 with to the mode of radius outside expansion by strain, each oil sealing portion 50,51 and oil seal part 52 flexibly contact with the outer peripheral face 48 of shank 12.Under the state that is provided with like this, each oil sealing portion 50,51, compare to the resistance to sliding that is near lubricated position 44 directions (following be referred to as sometimes " direction of closing ") in its shift reciprocately with shank 12, the resistance to sliding to away from the displacement of lubricated position 44 (following be referred to as sometimes " away from direction ") time becomes big.In addition, oil seal part 52 is compared with the resistance to sliding to away from the direction displacement time of shank 12 in its shift reciprocately, and it is big that the resistance to sliding when the direction of closing displacement becomes.
In more detail, when shank 12 during to the direction of closing displacement, for the oil sealing of cantilever beam structures, elastically deformable forms zone 55, to be out of shape away from shank 12 and along the mode that axis direction is stretched to the radius outside, oil sealing portion 50,51 contacts area with respect to shank 12 diminish, and resistance to sliding diminishes.In addition, when shank 12 to away from the direction displacement time, oil sealing forms zone 55, being out of shape near shank 12 and along the compressed mode of axis direction to inner sides of radius, oil sealing portion 50,51 increases with respect to the contact area of shank 12, resistance to sliding increases.In addition, when shank 12 to away from the direction displacement time, for the dust seal of cantilever beam structures, elastically deformable forms zone 56, to be out of shape away from shank 12 and along the mode that axis direction is stretched to the radial direction outside, oil seal part 52 diminishes with respect to the contact area of shank 12, and resistance to sliding diminishes.In addition, when shank 12 during to the direction of closing displacement, dust seal forms zone 56, to be out of shape near shank 12 and along the compressed mode of axis direction to the radial direction inboard, oil seal part 52 becomes big with respect to the contact area of shank 12, and it is big that resistance to sliding becomes.Here, direction of closing is the direction of keeping out of the way in arm 22, at shank member 34 places of downside, is top C1.In addition, be the direction of giving prominence to away from direction from arm 22, at shank containment member 34 places of downside, be below C2.
In addition, the carbon steel of shank 12 usefulness S40C, S45C and S50C etc. constitutes, and constitutes with S50C in this form of implementation.This shank 12 is at least by each shank supporting member 29,30 supporting, part in each shank containment member 33,34 contact, aforementioned outer peripheral face is formed shaft portion 45 cylindraceous, the dimensional tolerance of its profile is about 0.009mm, and its surface roughness, particularly, according to 10 mean roughness Rz of JIS0601-2001, in the scope about more than 0.4 μ m, below the 1.6 μ m, be formed very high precision.
In addition, the inner peripheral surface of the part that the shank supporting member 30 at periphery base portion 40 places of shank containment member 34 is embedded into, its dimensional tolerance is about 0.15mm.In addition, the part of the embedding shank containment member 34 of shank supporting member 30, the dimensional tolerance of outer peripheral face is about 0.03mm, surface roughness, particularly, according to 10 mean roughness Rz of JIS0601-2001, in the scope about more than 6.3 μ m, below the 12.5 μ m.
Fig. 4 is the profile of the part of the structure that is associated with the compressor arm 60 of anti-oil leakage device 10 of expression.Fig. 5 is the profile of the part of the structure that is associated with the compressor arm 60 of anti-oil leakage device 10 of expression.In the part above the needle plate 15 that is configured in arm 22, on bottom 28, with compressor arm supporting member 61 be fixed to be provided with shank supporting member 30 near.Compressor arm supporting member 61 as other ways is set up in the mode that axis is disposed along the vertical direction.Coaxially this compressor arm supporting member 61 of break-through, as the compressor arm 60 of another drive member, L60 disposes along the vertical direction with its axis, to the major general as the bottom 62 of an end of axis direction from arm 22 towards needle-bar 20 and outstanding downwards setting.
Compressor arm supporting member 61 is formed cylindric, and compressor arm 60 can be along the free displacement of its axis L60 by 61 supportings of compressor arm supporting member and guiding, and the outer peripheral face of the shaft portion 65 of the compacted at least bar supporting member guiding of compressor arm 60 is formed cylindric.Compressor arm 60 perhaps by the outer drive source transferring power of figure, is driven by shift reciprocately to pushing driving direction E1, E2 along axis L60 direction by operator's manual operation.In Sewing machines 11, compressor arm 60 is being made when action, and because of the reasons such as variation of the thickness of sewn object, for example shift reciprocately 1mm is above, the stroke of 2mm about following.The velocity of displacement of compressor arm 60 at this moment for example is that 100mm/ is about second.In addition, when needs carry out the configuration of sewn object and take out operation, for example, back and forth driven with the stroke about more than the 5mm, below the 8mm.
On the bottom 62 of this compressor arm 60, presser feet 16 is set, can be in the position that makes presser feet 16 with needle plate 15 co-operating clamping sewn objects, and remove between the position of this clamping, up and down pushing driving direction E1, E2 carry out displacement drive.Below, the E1 that will push one of driving direction sometimes is called top E1, and another direction E2 that pushes driving direction is called below E2.
For arrive compressor arm 60 along sliding displacement, arm 22 on compressor arm 60 supplying lubricating oil, will lubricate between compressor arm 60 and the compressor arm supporting member 61.Outside arm 22, the compressor arm containment member 66 of ring-type is installed coaxially on compressor arm supporting member 61 in order to prevent this oil leak.Compressor arm containment member 66 is set on the bottom of compressor arm supporting member 61.Like this, compressor arm containment member 66 be arranged on the end with the lubricating oil supply position opposition side of compressor arm supporting member 61, thereby being arranged on respect to arm 22 becomes on the end in the outside.That is, compressor arm containment member 66 with respect to the lubricated position 67 between compressor arm 60 and the compressor arm supporting member 61, is arranged on the outside of arm 22.
Compressor arm containment member 66 is similar to each shank containment member 33,34, has to be roughly periphery base portion 70 cylindraceous, is located at interior all contact sites 71 of the inboard of periphery base portion 70, connects the connecting portion 72 of periphery base portion 70 and interior all contact sites 71.Periphery base portion 70 and interior all contact sites 71 form the roughly the same size along axis direction.This compressor arm containment member 66, bottom at compressor arm supporting member 61, perimembranous is compared with remainder in the recess of keeping out of the way to the radial direction outside that is formed 69 in being embedded into, make the outer peripheral face 76 of periphery base portion 70 closely contact embedded being installed in the compressor arm supporting member 61 with the inner peripheral surface 77 of the recess 69 of compressor arm supporting member 61.Lubricated position 67 is compressor arms 60 with compressor arm supporting member 61 along radius clamping lubricating oil and the position of subtend.
Under the state of being installed on the compressor arm supporting member 61, interior all contact sites 71 as the interior perimembranous of compressor arm containment member 66, the outside than lubricated position 67 more close arms 22 is set, thereby be arranged on respect to the position of supplying lubricating oil away from side, the outside in this lubricated position 67 contacts with the outer peripheral face 78 of compressor arm 60.Interior all contact sites 71, have from connecting portion 72 and form zone 85, form zone 86 to the dust seal of the cantilever beam structures of extending away from the direction of lubricated position 67 and to the inboard of radial direction from connecting portion 72 to the oil sealing of the cantilever beam structures of extending with the approaching direction in lubricated position 67 and to the inner sides of radius direction.
Dust seal form the zone 86 on, form one or more, be an oil seal part 82 in this form of implementation.Oil seal part 82 is configured in the side away from lubricated position 67 than each oil sealing portion 80,81.Oil seal part 82 is formed on dust seal and forms on 86 the interior circumferential portion of zone, be side-prominent in radial direction, spread all over the prominent bar that whole circumferential direction is extended, along with outstanding, be formed tapering shape to radial direction.Oil seal part 82, shown in imaginary line among Fig. 4, in the nature that does not have the external force effect, the inside diameter D 82 of point is less than the profile D60 of compressor arm 60.
The compressor arm containment member 66 like this, about interior week contact 71, have and interior all contact sites 41 of each shank containment member 33,34 same arrangement with respect to lubricated position.In addition, compressor arm containment member 66 from the viewpoint of material, similarly, has main body 88, heartwood 89.The main body 88 of compressor arm containment member 66, constitute by main body 58 identical materials with each shank containment member 33,34, and, the heartwood 89 of compressor arm containment member 66, constitute by heartwood 59 same materials, have identical effect with each shank containment member 33,34.
This compressor arm containment member 66, under the state that compressor arm 60 passes, the same with each shank containment member 33,34, interior all contact sites 71 with to the mode of radial direction outside expansion by strain, each oil sealing portion 80,81 and oil seal part 82 are with outer peripheral face 78 Elastic Contact of compressor arm 60.Under the state that is provided with like this, each oil sealing portion 80,81, compare with compressor arm 60 resistance to sliding near the displacement of lubricated position 67 directions time the in its shift reciprocately, in its shift reciprocately, the resistance to sliding to away from the direction displacement of lubricated position 67 time becomes big.In addition, oil seal part 82 is compared with compressor arm 60 resistance to sliding to away from the displacement of lubricated position 67 directions time the in its shift reciprocately, and in its shift reciprocately, the resistance to sliding near the direction displacement of lubricated position 67 time becomes big.Like this, on each oil sealing portion 80,81 and oil seal part 82, produce the reason of the difference of aforementioned resistance to sliding, the same with 33,34 o'clock situation of each shank containment member, the distortion that is based on the displacement of compressor arm 60 causes, so omit its detailed description.
Here, the direction of approaching lubricated position 67 is the directions of keeping out of the way in the arm 22, i.e. top E1.In addition, away from the direction of lubricated position 67, be direction outstanding from arm 22, be below E2.
In addition, compressor arm 60, for example the chrome-molybdenum steel by SCM415 etc. constitutes.At least compacted bar supporting member 61 supporting of this compressor arm 60, form shaft portion 65 cylindraceous with the aforementioned outer peripheral face of compressor arm containment member 66 contacted parts, its appearance and size tolerance is about 0.009mm, and, surface roughness, specifically, according to 10 mean roughness Rz of JIS0601-2001, be formed on that 0.4 μ m is above, in the scope of 1.6 μ m about following, form very high precision.
In addition, the outer peripheral face that contacts with compressor arm supporting member 61 at periphery base portion 40 places of compressor arm containment member 66, its dimensional tolerance is about 0.15mm.In addition, the recess 69 that the compressor arm containment member 66 of compressor arm supporting member 61 embeds, the dimensional tolerance of inner peripheral surface is about 0.05mm, surface roughness, specifically, according to 10 mean roughness Rz of JIS0601-2001, be formed on that 6.3 μ m are above, in the scope of 12.5 μ m about following.
Anti-oil leakage device 10 according to described above form of implementation, passing each shank supporting member 29,30 and compressor arm supporting member 61 (below, sometimes general designation is made " ways "), under the state that is lubricated by lubricating oil, be installed to each ways 29 respectively, 30, shank containment member 33 on 61,34 and compressor arm containment member 66 (below, sometimes general designation is made " containment member ") interior all contact sites 41,71 with outer peripheral face 48 along the shank 12 of axis shift reciprocately and compressor arm 60 (below, general designation is made " driving shaft " sometimes), 78 contact.On interior all contact sites 41,71 of each containment member 33,34,66, oil sealing portion 50,51,80,81 is set, utilize each oil sealing portion 50,51,80,81 to prevent the leakage of lubricating oil.Each oil sealing portion 50,51,80,81, with driving shaft 12,60 near the direction of lubricated position 44,67 (below, sometimes being referred to as " direction of closing ") resistance to sliding during displacement compares, the resistance to sliding of driving shaft 12,60 to away from the direction of lubricated position 44,67 (below, be referred to as " away from direction " sometimes) displacement the time becomes big.
If it is big that resistance to sliding becomes, the scraping of lubricating oil got effect and increased, thereby improves the leakage effect that prevents of lubricating oil.Otherwise when resistance to sliding diminished, oil sealing portion 50,51,80,81 was not easy wearing and tearing, and durability increases.At driving shaft 12,60 to away from the direction displacement time, the part that driving shaft 12,60 adheres to lubricating oil is with respect to oil sealing portion 50,51,80,81, be displaced to position with lubricated position 44,67 opposition sides always, specifically, be displaced to the foreign side of arm 22, so, can improve resistance to sliding, increase scraping of lubricating oil and get effect, and can prevent the external leaks of lubricating oil reliably to arm 22.And, at this moment, in oil sealing portion 50,51,80,81, be attached with the lubricating oil that scrapes down from driving shaft, can suppress the wearing and tearing of oil sealing portion 50,51,80,81.Otherwise, when driving shaft 12,60 during to the direction of closing displacement, the part that driving shaft 12,60 adheres to lubricating oil, be in the same side with respect to oil sealing portion 50,51,80,81 and lubricated position, that is, be positioned at arm 22, so, even it is low also passable that the scraping of lubricating oil got effect, make resistance to sliding low, thereby oil sealing portion 50,51,80,81 is not easy wearing and tearing.Like this, for the leakage of the lubricating oil of anti-oil leakage device, can realize high sealing, and can realize high durability.Thereby, can prevent oil leak reliably outside arm 22, prevent to stain line and sewn object reliably, and, can reach this effect for a long time.Particularly, as previously described, can be suitable for very much the shank 12 that is driven by shift reciprocately with high speed and high cycle in the industrial sewing machines.
In addition, on interior all contact sites 41,71 of each containment member 33,34,66, oil seal part 52,82 is arranged on the side further from lubricated position 44,67 than oil sealing portion 52,82, utilizes this oil seal part 52,82 to prevent that the particulate of dust etc. from undesirably invading in the lubricated position 44,67. Oil seal part 52,82 is constituted as, and compares with the resistance to sliding of driving shaft 12,60 to away from the direction displacement time, and it is big that the resistance to sliding the during displacement of driving axial direction of closing becomes.
Big as resistance to sliding, scrape and get atomic effect raising, prevent that the effect that particulate is invaded from improving.Otherwise if resistance to sliding diminishes, oil seal part is not easy to wear, and durability improves.When driving shaft 12,60 during to the direction of closing displacement, oil seal part 52,82 with respect to driving shaft 12,60, be in the part of lubricated position 44,67 opposition sides, outside arm 22 the outstanding part of adhering to dust easily, be displaced to lubricated position 44,67, so, increase resistance to sliding, improve to scrape and get atomic effect, can prevent atomic intrusion reliably.Otherwise, at driving shaft 12,60 to away from the direction displacement time, from the outstanding part of the arm 22 of driving shaft 12,60, with respect to oil seal part 52,82, be positioned at and lubricated position 44,67 opposition sides, so, even particulate is scraped and is got effect and reduce also passable, reduce resistance to sliding, thereby oil seal part 52,82 is difficult to wearing and tearing.Like this, for atomic intrusion, can realize high sealing, and can realize high durability.
In addition, along axis direction, a plurality of oil sealing portion 50,51,80,81 is set.Whereby, obtain to utilize a plurality of oil sealing portion to scrape the effect of getting, can improve sealing.In addition, can reduce the burden that seals by an oil sealing portion, like this, reduce the resistance to sliding on a sealing, can suppress wearing and tearing, improve durability.
In addition, owing to each containment member 33,34,66 material by excellent in wear resistance constitutes, so can improve durability.In addition, as previously described, owing to constitute by the big material of Applicable temperature scope, so, even as previously described because with by at a high speed and the sliding-contact of the shank 12 of high cycle displacement drive, containment member 33,34,66 rises to the temperature about 70 ℃～80 ℃, performance can not change yet, and keeps high sealing.In addition, even wait in the winter time between freeze-up, particularly night etc. Sewing machines is stopped to place, during containment member 33,34,66 as lowering of temperature below the freezing point, performance also can not change, and keeps high sealing.
In addition, because driving shaft 12,60, ways 29,30,61 and containment member 33,34,66, be formed combination, dimensional accuracy and the surface roughness of foregoing material, so, the performance of each containment member 33,34,66 can be brought into play reliably, and then higher sealing can be arrived.Self-evident, between the driving shaft 12,60 and containment member 33,34,66 of moving contact, because aforementioned effect, can prevent the leakage of lubricating oil, and between the ways 29,30,61 and containment member 33,34,66 of quiet contact, owing to improve its dimensional accuracy, can prevent the leakage of lubricating oil.And, constituting on the periphery base portion 40,70 of quiet contact, heartwood 59,89 is set, even driving shaft 12,60 displacements also can prevent from the distortion that produced by its influence from can reach high leakproofness.
The profile of the part of Fig. 6 structure that to be expression relevant with the shank of the anti-oil leakage device 10a of the Sewing machines of another form of implementation of the present invention 12.The anti-oil leakage device 10a of this form of implementation, similar with the anti-oil leakage device 10 of the aforementioned form of implementation of Fig. 1～shown in Figure 5, below only its difference is described.In the anti-oil leakage device 10a of this form of implementation, replacement is shank containment member 33,34 set, that have two oil sealing portions 50,51 in the anti-oil leakage device 10 of aforementioned form of implementation, and the shank containment member 34a with an oil sealing portion 50 and oil seal part 52 is set.In Fig. 6, only express the shank containment member 34a of downside, but the shank containment member 34a of the downside of the shank containment member of upside and Fig. 6 forms symmetrically on above-below direction.In this structure,, can reach identical effect except that by being provided with the effect that a plurality of oil sealing portion obtains.
The profile of the part of Fig. 7 structure that to be expression relevant with the shank of the anti-oil leakage device 10b of the Sewing machines of another form of implementation of the present invention 12.The anti-oil leakage device 10b of this form of implementation, similar with the anti-oil leakage device 10 of the aforementioned form of implementation of Fig. 1～shown in Figure 5, below only its difference is described.In the anti-oil leakage device 10b of this form of implementation, replacement is shank containment member 33,34 that be provided with, that have oil seal part 52 in the anti-oil leakage device 10 of aforementioned form of implementation, and the shank containment member 34b that does not have oil seal part, has two oil sealing portions 50,51 is set.In Fig. 7, only express the shank containment member 34b of downside, but the shank containment member 34b of the downside of the shank containment member of upside and Fig. 7 forms symmetrically on above-below direction.In this structure,, can reach identical effect except that by the effect that the oil seal part acquisition is set.
The profile of the part of Fig. 8 structure that to be expression relevant with the compressor arm of the anti-oil leakage device 10c of the Sewing machines of another form of implementation of the present invention 60.The anti-oil leakage device 10c of this form of implementation, similar with the anti-oil leakage device 10 of the aforementioned form of implementation of Fig. 1～shown in Figure 5, below only its difference is described.In the anti-oil leakage device 10c of this form of implementation, the compressor arm containment member 66 with two oil sealing portions 80,81 that replacement is provided with in the anti-oil leakage device 10 of aforementioned form of implementation is provided with the compressor arm containment member 66c with a compressor arm oil sealing portion 80 and oil seal part 82.In this structure,, can reach identical effect except that by being provided with the effect that a plurality of oil sealing portion obtains.
The profile of the part of Fig. 9 structure that to be expression relevant with the compressor arm of the anti-oil leakage device 10d of the Sewing machines of another form of implementation of the present invention 60.The anti-oil leakage device 10d of this form of implementation, similar with the anti-oil leakage device 10 of the aforementioned form of implementation of Fig. 1～shown in Figure 5, below only its difference is described.In the anti-oil leakage device 10d of this form of implementation, the compressor arm containment member 66 with oil seal part 82 that replacement is provided with in the anti-oil leakage device 10 of aforementioned form of implementation is provided with the compressor arm containment member 66d that does not have oil seal part 82, has two oil sealing portions 80,81.In this structure,, can arrive identical effect except that by the effect that the oil seal part acquisition is set.
Aforementioned form of implementation, but be example of the present invention, within the scope of the invention, can change its structure.For example, aforementioned each form of implementation can be carried out suitable combination, in addition, for example also can oil sealing portion more than 3 be set, also plural oil seal part can be set along axis direction.In addition, also can be only to any one the enforcement anti-oil leakage device in shank 12 and the compressor arm 60.In addition, also can implement anti-oil leakage device with respect to the driving shaft outside shank 12 and the compressor arm 60.And then, also aforementioned containment member can be arranged on decorative thread running-on bar (Ornaments り yarn Le one パ rod) and roll (oblique yarn
り Shaft) etc. on, can prevent leakage of oil well.
The present invention under the situation that does not exceed its spirit or principal character, can be implemented with other various forms.Thereby aforementioned form of implementation is example only, and scope of the present invention is the content shown in the scope of claim, is not subjected to any restriction of specification text.And then, belong to the distortion and the change of claim, all comprise within the scope of the present invention.
Claims (10)
1, a kind of anti-oil leakage device of Sewing machines, comprising sewing machine main body (23), be fixed on the ways (29 of the ring-type on the sewing machine main body (23), 30,61), in sewing machine main body (23), be supplied to lubricating oil, the aforementioned ways (29 of break-through, 30,61) driving shaft (12 that is driven by shift reciprocately along axis direction, 60), be installed in ways (29,30,61) on, interior perimembranous and driving shaft (12, the containment member (33 of the contacted ring-type of outer peripheral face 60), 34,34a, 34b, 66,66c, in Sewing machines anti-oil leakage device 66d), it is characterized by
On the interior perimembranous of aforementioned containment member (33,34,34a, 34b, 66,66c, 66d), form oil sealing portion (50,80), wherein, described oil sealing portion (50,80), compare with the resistance to sliding in the shift reciprocately of aforementioned driving shaft (12,60), near the direction displacement of the lubricated position (44,67) that is lubricated by lubricating oil the time, the resistance to sliding in the shift reciprocately of aforementioned driving shaft (12,60), to away from the direction displacement of aforementioned lubricated position (44,67) time is big.
2, the anti-oil leakage device of Sewing machines as claimed in claim 1, it is characterized by, at aforementioned containment member (33,34,34a, 66, on interior perimembranous 66c), with aforementioned oil sealing portion (50,80) compare away from lubricated position side, form oil seal part (52,82), wherein, described oil seal part (52,82), with at aforementioned driving shaft (12,60) in the shift reciprocately, to away from lubricated position (44, resistance to sliding during 67) direction displacement is compared, at aforementioned driving shaft (12,60) in the shift reciprocately, to approaching aforementioned lubricated position (44, resistance to sliding during 67) direction displacement is big.
3, the anti-oil leakage device of Sewing machines as claimed in claim 1 is characterized by, and the oil sealing portion (50,51,80,81) of aforementioned containment member (33,34,66) is set up a plurality of along axis direction.
4, the anti-oil leakage device of Sewing machines as claimed in claim 2 is characterized by, and the oil sealing portion (50,51,80,81) of aforementioned containment member (33,34,66) is set up a plurality of along axis direction.
5, the anti-oil leakage device of Sewing machines as claimed in claim 1 is characterized by, and aforementioned containment member (33,34,34a, 34b, 66,66c, 66d) is made of the flexible and flexible material of having of excellent in wear resistance.
6, the anti-oil leakage device of Sewing machines as claimed in claim 2 is characterized by, and aforementioned containment member (33,34,34a, 66,66c) is made of the flexible and flexible material of having of excellent in wear resistance.
7, the anti-oil leakage device of Sewing machines as claimed in claim 3 is characterized by, and aforementioned containment member (33,34,66) is made of the flexible and flexible material of having of excellent in wear resistance.
8, the anti-oil leakage device of Sewing machines as claimed in claim 4 is characterized by, and aforementioned containment member (33,34,66) is made of the flexible and flexible material of having of excellent in wear resistance.
9, as the anti-oil leakage device of any one described Sewing machines in the claim 1～8, it is characterized by, aforementioned driving shaft is the shank (12) that keeps pin to use, and aforementioned containment member (33,34,34a, 34b) is installed on the aforementioned ways (29,30) by outer embedding.
10, as the anti-oil leakage device of any one described Sewing machines in the claim 1～8, it is characterized by, aforementioned driving shaft is the compressor arm (60) that keeps presser feet to use, and aforementioned containment member (66,66c, 66d) is installed on the aforementioned ways (61) by embedded.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP273242/2002 | 2002-09-19 | ||
| JP2002273242A JP2004105516A (en) | 2002-09-19 | 2002-09-19 | Oil leakage preventive device of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1495313A true CN1495313A (en) | 2004-05-12 |
Family
ID=32270043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031249159A Pending CN1495313A (en) | 2002-09-19 | 2003-09-19 | Oil-leaking-proof device for sewing machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2004105516A (en) |
| CN (1) | CN1495313A (en) |
| TW (1) | TW200415280A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383420C (en) * | 2004-05-28 | 2008-04-23 | 大和缝纫机制造株式会社 | Sealing structure |
| CN1840770B (en) * | 2005-02-28 | 2011-06-15 | 大和缝纫机制造株式会社 | Oil leakage-proof and dust-proof device of sewing machine |
| CN102352923A (en) * | 2011-09-30 | 2012-02-15 | 湖南中联重科车桥有限公司 | Seal structure |
| CN101542171B (en) * | 2006-11-14 | 2012-07-18 | 株式会社爱发科 | Substrate transfer device, and vacuum treating apparatus |
| TWI468569B (en) * | 2008-02-08 | 2015-01-11 | Yamato Sewing Machine Mfg | Crank arm type chain sewing machine blade drive device |
| CN106989177A (en) * | 2017-05-15 | 2017-07-28 | 常州绍鼎密封科技有限公司 | Tool rest shaft sealer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007009931A (en) * | 2005-06-28 | 2007-01-18 | Nok Corp | Sealing device |
-
2002
- 2002-09-19 JP JP2002273242A patent/JP2004105516A/en active Pending
-
2003
- 2003-09-17 TW TW092125603A patent/TW200415280A/en not_active IP Right Cessation
- 2003-09-19 CN CNA031249159A patent/CN1495313A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383420C (en) * | 2004-05-28 | 2008-04-23 | 大和缝纫机制造株式会社 | Sealing structure |
| CN1840770B (en) * | 2005-02-28 | 2011-06-15 | 大和缝纫机制造株式会社 | Oil leakage-proof and dust-proof device of sewing machine |
| CN101542171B (en) * | 2006-11-14 | 2012-07-18 | 株式会社爱发科 | Substrate transfer device, and vacuum treating apparatus |
| TWI468569B (en) * | 2008-02-08 | 2015-01-11 | Yamato Sewing Machine Mfg | Crank arm type chain sewing machine blade drive device |
| CN102352923A (en) * | 2011-09-30 | 2012-02-15 | 湖南中联重科车桥有限公司 | Seal structure |
| CN106989177A (en) * | 2017-05-15 | 2017-07-28 | 常州绍鼎密封科技有限公司 | Tool rest shaft sealer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004105516A (en) | 2004-04-08 |
| TW200415280A (en) | 2004-08-16 |
| TWI316570B (en) | 2009-11-01 |
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