CN100383420C - Sealing structure - Google Patents
Sealing structure Download PDFInfo
- Publication number
- CN100383420C CN100383420C CNB2005100759427A CN200510075942A CN100383420C CN 100383420 C CN100383420 C CN 100383420C CN B2005100759427 A CNB2005100759427 A CN B2005100759427A CN 200510075942 A CN200510075942 A CN 200510075942A CN 100383420 C CN100383420 C CN 100383420C
- Authority
- CN
- China
- Prior art keywords
- shank
- circumferential weld
- guide member
- sealing component
- base part
- 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
Links
- 238000007789 sealing Methods 0.000 title claims description 123
- 238000009958 sewing Methods 0.000 claims description 19
- 238000006073 displacement reaction Methods 0.000 abstract description 25
- 230000002093 peripheral effect Effects 0.000 abstract description 17
- 239000000428 dust Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 26
- 239000000314 lubricant Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 239000010687 lubricating oil Substances 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010417 needlework Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Images
Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B71/00—Lubricating or cooling devices
- D05B71/02—Loop-taker lubricating devices
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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
- F16C29/02—Sliding-contact bearings
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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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2205/00—Interface between the operator and the machine
- D05D2205/32—Safety devices; Security devices
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Sealing Devices (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Of Bearings (AREA)
Abstract
This invention provides a seal structure. A needle bar 12 is guided by a tubular needle bar receiving members 29 and 30 and reciprocatingly and displaceably driven in the axial direction. Needle bar seal members 33 and 34 comprise outer peripheral base parts 40, oil seal parts 50, and dust seal parts 52, and are fitted to the needle bar receiving members 29 and 30 by the outer peripheral base part 40. A contact face 53 supporting the axial displacements of the needle bar receiving members 29 and 30 is formed on the outer peripheral base part 40. Thus, the outer peripheral base part 40 can be prevented from being axially displaced relative to the needle bar receiving members 29 and 30. As a result, even if the needle bar seal members 33 and 34 are fitted to a needle bar 12 reciprocatingly and displaceably driven, the needle bar seal members 33 and 34 can be securely prevented from coming out of the needle bar receiving members 29 and 30.
Description
Technical field
The present invention relates to carry out the sealing configuration of the live axle of shift reciprocately along axial direction.
Background technique
Fig. 9 is the sectional drawing of the relevant structure part of the shank 2 of expression conventional art and sewing machine 1.Figure 10 is the exploded perspective view of the relevant structure part of the shank 2 of expression conventional art and sewing machine 1.Technology is is in the past recorded and narrated in the spy and is opened in the 2004-105516 communique.The spy opens the anti-locking apparatus of leakage of oil of the sewing machine of being recorded and narrated in the 2004-105516 communique 1, and possess: shank 2 is used for carrying out shift reciprocately by axial direction; Shank support member 3 is used for shank 2 is led by axial direction; Shank sealing component 4 is used for striking off the lubricant oil to shank 2 supplies.The inner peripheral surface 4a of shank sealing component 4 is received on the outer circumferential face 3a of shank support member 3 mutually, and shank sealing component 4 outer being set on the shank support member 3 are installed.
With regard to above-mentioned technology in the past, because shank sealing component 4 receives on the shank 2 that is driven by shift reciprocately by axial direction mutually, thereby driven by shift reciprocately by shank 2, shank sealing component 4 and shank 2 produce the effect of sliding frictions.According to the difference of this sliding friction, the worry that exists shank sealing component 4 to break away from from shank support member 3.
As the method that solves this problem, in above-mentioned technology in the past, 4 pairs of shank support members of shank sealing component 3 are adopted binder, come bonding shank sealing component 4 and shank support member 3, prevent that shank sealing component 4 breaks away from from shank support member 3.Because shank sealing component 4 is received on the shank 2 mutually, so along with use, shank sealing component 4 makes the effect decline of striking off lubricant oil from shank 2 because of wearing and tearing appear in sliding friction.In this case, shank sealing component 4 need be replaced with new shank sealing component 4, but, thereby need remove binder, be difficult to change operation because 4 pairs of shank support members 3 of shank sealing component are undertaken bondingly by binder.
Summary of the invention
Therefore, purpose of the present invention is used for preventing that sealing component breaks away from from guide member, and can changes sealing component for a kind of sealing configuration is provided.
Sealing configuration of the present invention comprises:
The guide member of tubular;
Live axle is used for coaxial break-through guide member, and carries out shift reciprocately at axial direction and drive;
Sealing component has the sealed department that the outer circumferential face elasticity of the base part that is installed on the guide member and interior perimembranous and live axle is joined;
It is characterized by,
On the either party among base part and the guide member, form abutted surface, be used for appointing the displacement of the opposing party's axial direction to support among base part and the guide member.
According to the present invention, live axle leads by the guide member of tubular, and is driven by shift reciprocately by axial direction.Sealing component has base part and sealed department, and utilizes base part to be installed on the guide member.If sealing component is installed on the guide member, then the interior perimembranous elasticity of sealed department is received on the outer circumferential face of live axle mutually, is therefore driven by shift reciprocately by live axle, can strike off on the outer circumferential face of live axle accompanying as lubricant oil and particulate.On the either party among base part and the guide member, form abutted surface, be used for appointing the displacement of the opposing party's axial direction to support among base part and the guide member.Owing to form this abutted surface, thereby live axle drives by shift reciprocately by axial direction, and utilizes the sliding friction of working on live axle and sealed department, can prevent that base part from carrying out displacement to guide portion by axial direction.Thereby, even if be arranged at sealing component on the live axle that is driven by shift reciprocately, can prevent really that also sealing component breaks away from from guide member.In addition, when sealing component was replaced with new sealing component, the worker can produce to the axial direction of guide member by making sealing component, allows sealing component break away from from guide member.In view of the above, when changing sealing component, can easily change.
In addition, of the present invention being characterized as forms the fitting projection that is used for forming abutted surface on any of base part and guide member,
Form the chimeric recess that is used for making the fitting projection embedding on the opposing party in appointing of base part and guide member.
According to the present invention, on the either party of base part and guide member, form the fitting projection that is used for forming abutted surface, and form the chimeric recess that is used for making the fitting projection embedding on the opposing party in appointing of base part and guide member.Thereby, can be embedded in the chimeric recess by fitting projection, prevent that really base part from carrying out displacement to guide member by axial direction.Thereby, adopt fitting projection and this simple structure of chimeric recess, just can prevent really that sealing component breaks away from from guide member.
Moreover, of the present invention being characterized as, live axle is a kind of shank that is used for keeping the sewing machine suture needle,
Sealing component is set on the guide member outward and installs.
According to the present invention, can relate to the suture needle of sewing machine, realize the sealing configuration that prevents that guide member breaks away from from sealing component.
Moreover, of the present invention being characterized as, live axle is a kind of circumferential weld shank that is used for keeping sewing machine circumferential weld pin,
Sealing component is set on the guide member outward and installs.
According to the present invention, can relate to the circumferential weld shank that is used for keeping sewing machine circumferential weld pin, realize the sealing configuration that prevents that guide member breaks away from from sealing component.
Moreover, of the present invention being characterized as, fitting projection and chimeric recess are provided with on the scope of circumferencial direction complete cycle respectively.
According to the present invention, fitting projection and chimeric recess can position, so that each axis of sealing component and guide member becomes coaxial.In view of the above, sealed department is appropriately received on the live axle mutually, can be realized in the scope of circumferencial direction, deviation not occurring and the structure of striking off effect of evenly bringing sealed department.In addition, because fitting projection and chimeric recess be provided with on the scope of circumferencial direction complete cycle respectively, thereby when by the worker guide member being installed sealing component, need not to carry out the location of circumferencial direction, therefore can easily install.
Description of drawings
Purpose of the present invention, characteristics and advantage will become more clear and definite by following detailed description and accompanying drawing.
Fig. 1 is the sectional drawing of expression as one embodiment of the present invention structure part relevant with the shank of sealing configuration.
Fig. 2 is the sectional drawing that amplifies an expression structure part relevant with the shank of sealing configuration.
Fig. 3 is the oblique drawing that expression possesses the sewing machine of sealing configuration.
Fig. 4 is the oblique drawing of the expression structure relevant with the shank of sealing configuration.
Fig. 5 is the oblique drawing of the expression structure relevant with the circumferential weld shank of sealing configuration.
Fig. 6 sees and the sectional drawing of the structure part that expression is relevant with the circumferential weld shank of sealing configuration from a positive side.
Fig. 7 is that one side is seen and the sectional drawing of the structure part that expression is relevant with the circumferential weld shank of sealing configuration from the plane.
Fig. 8 is the sectional drawing that amplifies an expression structure part relevant with the circumferential weld shank of sealing configuration.
Fig. 9 is the sectional drawing of an expression conventional art structure part relevant with sewing machine needle bar.
Figure 10 is the exploded perspective view of an expression conventional art structure part relevant with sewing machine needle bar.
Embodiment
Below, be reference with the accompanying drawing, describe preferred forms of the present invention in detail.
Fig. 1 is expression as the sectional drawing of the relevant structure part of the shank 12 of one embodiment of the present invention and sealing configuration 10.Fig. 2 is the sectional drawing that amplifies presentation graphs 1 part.Fig. 3 is the oblique drawing that expression possesses the sewing machine 11 of sealing configuration 10.Fig. 4 is the oblique drawing of the expression structure relevant with the shank 12 of sealing configuration.With reference to Fig. 3, for example the sewing machine 11 as industrial sewing machines utilizes needle plate 15 and pressing plate 16 to clamp sewn object (omitting diagram), and transmit to predetermined transporting direction B by feeding tooth (omit diagram), meanwhile make eedle 17 eedle driving direction C1, C2 up and down carry out reciprocating action, can make sewn object.Below, sometimes a side C1 of eedle driving direction is called top C1, the opposing party C2 of eedle driving direction is called below C2.
Sewing machine 11 possesses hollow sewing machine main body 23, plays a role the driving mechanism that this case drives eedle 17 grades in the inside harvesting etc. as case.Sewing machine main body 23 has: frame 20 is provided with needle plate 15; Pillar 21 is holded up from an end of frame 20; Arm 22 extends along frame 20 from the upper end portion of pillar 21; And form roughly C word shape.
With reference to Fig. 4, being disposed on the part above the needle plate 15 of arm 22, the inner space 31 of arm 22 is limited by pair of sidewalls portion and top 27 and bottom 28 and forms, and on top 27 and bottom 28, is fixed with the shank support member 29,30 of tubular respectively.Each shank support member 29,30 as guide member disposes each axis along the vertical direction, and is set to coaxial.These each shank support members 29,30 of break-through make it coaxial and as the shank 12 of live axle, L12 is configured by above-below direction with its axis, and make underpart 25 at least, be projected into the below from arm 22 towards frame 20 and be provided with as an end of axial direction.In the present embodiment, shank 12 is pressed above-below direction break-through arm 22, is projected into the top as the upper end portion 26 of axial direction the other end from arm 22.
Shank 12 is supported by each shank support member 29,30 and leads, and carries out displacement freely along its axis L12.Shank 12 by the outer circumferential face of each shank support member 29,30 shaft portions that led 45, forms cylindric at least.Each shank support member 29,30 forms cylindric.The never illustrated driving source of shank 12 transmits power, and is driven by shift reciprocately to eedle driving direction C1, the C2 of conduct along the direction of axis L12.On the underpart 25 of this shank 12, eedle 17 is set, and eedle 17 is by displacement drive.
In order to realize the smooth and easy displacement of shank 12, shank 12 by supplying lubricating oil in the arm 22, is lubricated between shank 12 and each the shank support member 29,30.In order to prevent this lubricant oil seepage outside arm 22, the shank sealing component 33,34 as the sealing component of tubular is installed respectively on each shank support member 29,30, make it coaxial.The top shank sealing component of installing on the set top shank support member 29 on the top 27 of arm 22 33 is arranged at the upper end portion of shank support member 29.In addition, the below shank sealing component of installing on the set below shank support member 30 on the bottom 28 of arm 22 34 is arranged at the underpart of shank support member 30.Like this, each shank sealing component 33,34 is arranged at the end with the position opposite side of each shank support member 29,30 supplying lubricating oils, promptly is the end that becomes the outside for arm 22.That is to say that each shank sealing component 33,34 is arranged on the outside of arm 22 with respect to the lubricated position 44 between shank 12 and the shank support member 29,30.
Because each shank sealing component 33,34 is with respect to the direction along the axis L12 of shank 12, promptly constitute with symmetric form with respect to above-below direction, thereby will be elaborated for below shank sealing component 34 shown in Figure 1, omit its detailed description for 33 of top shank sealing components.Below shank sealing component 34 has: as the periphery base part 40 of base part; In all linking parts 41, be arranged at the inboard of periphery base part 40; Linking department 42 is used for linking periphery base part 40 and interior all linking parts 41.Periphery base part 40 roughly forms cylindric, and compares with interior all linking parts 41, and is more outstanding to lubricated position 44 sides that are lubricated by lubricant oil.In this periphery base part 40, be inserted in the underpart of shank support member 30, and inner peripheral surface 46 close proximity that make periphery base part 40 are set on the shank support member 30 outside the shank sealing component 34 and install to the outer circumferential face 47 of shank support member 30.Lubricated position 44 are shanks 12 with shank support member 30 radially clamping lubricant oil relative position.Under the state that is installed on the shank support member 30, remove on the periphery base part 40 the residue inner peripheral surface 46b outside the inner peripheral surface 46 that the outer circumferential face 47 with shank support member 30 joined, it forms along with towards the underpart of axial direction and diameter dwindles gradually.
Under the state that is installed on the shank support member 30, be set to than the outside of arm rest portion 22 more, lubricated position 44 as interior all linking parts 41 of perimembranous in the shank sealing component 34, promptly with respect to a side of the position opposite of supplying lubricating oil, and touch in the outside of this lubricated position 44 on the outer circumferential face 48 of shank 12.Interior all linking parts 41 have oil sealing portion 50 and the oil seal part 52 as sealed department.Oil sealing portion 50 and oil seal part 52 elasticity are received on the outer circumferential face 48 of shank 12 mutually.
On periphery base part 40, form abutted surface 53, be used for the axial direction displacement of shank support member 30 is supported.Abutted surface 53 has the face with respect to the axial direction inclination of shank support member 30 at least.In the present embodiment, the fitting projection 54 that is used for forming abutted surface 53 is formed on the periphery base part 40, and forms on shank support member 30 and be used for chimeric recess 55 that fitting projection 54 is embedded.The 46a of inner peripheral surface portion of fitting projection 54 its periphery base parts 40, outstanding and comprising the shape of cutting on the imaginary plane of axis after the fitting projection 54 to radially inner side forms circular-arc.Fitting projection 54 is identical positions for the axial direction of periphery base part 40, and is provided with on the scope of circumferencial direction complete cycle.Under the state that is installed on the shank support member 30, fitting projection 54 is formed at than interior all linking parts 41 inboard of arm rest portion 22 more.In addition, fitting projection 54 is formed at the axial direction top of periphery base part 40.In addition, under the state that is installed on the shank support member 30, the position above more leaning at the inner peripheral surface 46 of periphery base part 40, than the inner peripheral surface 46 axial direction central parts on the outer circumferential face 47 of receiving shank support member 30 mutually forms fitting projection 54.The outer circumferential surface section 47a of chimeric recess 55 its shank support members 30, become spill and comprising shape after cutting fitting projection 54 on the imaginary plane of axis, form circular-arc to radially inner side.Chimeric recess 55 is identical positions for the axial direction of shank support member 30, and is provided with on the scope of circumferencial direction complete cycle.
Under the state to these shank sealing component 34 break-through shanks 12, interior all linking parts 41 carry out resiliently deformable to be made it to open to radial outside, and oil sealing portion 50 and oil seal part 52 elasticity are received on the outer circumferential face 48 of shank 12 mutually.
Fig. 5 is the oblique drawing of the expression structure relevant with the circumferential weld shank 60 of sealing configuration 10.Fig. 6 sees and the sectional drawing of the structure part that the circumferential weld shank 60 of expression and sealing configuration 10 is relevant from a positive side.Fig. 7 is that one side is seen and the sectional drawing of the structure part that the circumferential weld shank 60 of expression and sealing configuration 10 is relevant from the plane.Fig. 8 is the sectional drawing that amplifies the relevant structure part of the circumferential weld shank 60 of expression and sealing configuration 10.In Fig. 7,, a part is made section represent in order to be easy to understand.In the inside of frame 20, portion of circumferential weld pin mechanism 61 is set below needle plate 15.
The circumferential weld pin 62 that portion of circumferential weld pin (looper) mechanism 61 is possessed carries out following reach action and backward movement below needle plate 15, and this action is controlled as with the shift reciprocately of eedle 17 synchronous, this reach action is carried out displacement along the rear side of eedle lowering position to approach axis E1, and this backward movement is carried out displacement along the front side of eedle lowering position to stepping back direction E2.Circumferential weld pin 62 be used for move forward when action upward the C1 formed needlework ring of eedle 17 rear sides that carries out displacement catch on and pull out, and loop wire that self rear side keeps is caught on by the eedle 17 that C2 downwards carries out displacement, form needlework and loop wire in the inside of sewn object by the seam of other line loopers.
The axis L60 of circumferential weld shank 60 is configured to it, eedle driving direction C1, the C2 of eedle 17 and with sewn object feed direction B roughly the direction of quadrature be almost parallel.60 break-through of circumferential weld shank make it coaxial as the circumferential weld shank support member 66 of other guide members and are provided with, and an end that makes axial direction at least is from circumferential weld shank support member 66 outstanding settings.Circumferential weld shank 60 is supported by circumferential weld shank support member 66 and leads, and carries out displacement freely along its axis L60, and carries out angle displacement freely around axis.In addition, circumferential weld shank 60 is directed to by the slip along the slide block 73 of guide hole 74, and carries out displacement freely along axis L60, and this guide hole 74 is formed on the circumferential weld shank guider 65.
The outstanding circumferential weld pin connecting rod 77 that is provided with on a side of circumferential weld shank guider 65 part, and it becomes on the parallel lower shaft that is equipped with 68 at homonymy, and being situated between is linked by eccentric 71 before and after the circumferential weld pin and circumferential weld pin front-rear linkage 72.Adopt this structure, on circumferential weld shank guider 65 by with the corresponding circumferential weld pin of the rotation of lower shaft 68 before and after the action of eccentric 71, being situated between works push-pull effort by circumferential weld pin connecting rod 77.This active force is situated between from circumferential weld shank guider 65 and is sent on the circumferential weld shank 60 by slide block 73, and circumferential weld shank 60 is synchronized with the rotation that drives the lower shaft 68 of interlock with the shift reciprocately of eedle 17, swings around axle.
In circumferential weld shank 60 bottoms of being supported by circumferential weld shank guider 65, with the axis L60 of circumferential weld shank 60 roughly quadrature set circumferential weld needle shaft 69, the top that base part is sleeved on the circumferential weld pin swing arm 70 on the circumferential weld needle shaft 69 is bonded on the circumferential weld shank 60.Circumferential weld needle shaft 69 is a kind of swing axiss, be attached on the lower shaft 68 by not shown crank mechanism, and the corresponding axis that centers on the rotation of lower shaft 68 is swung.
According to the above-mentioned the sort of structure of portion of circumferential weld pin mechanism 61, circumferential weld shank 60 is swung around axis with circumferential weld shank guider 65, and specifies the advance and retreat action of stroke by axial direction along with the swing of circumferential weld pin swing arm 70.These actions follow the rotation around lower shaft 68 axis that drives interlock with the shift reciprocately of eedle 17 to produce.The circumferential weld pin 62 that is arranged on 60 1 ends of circumferential weld shank is mounted because of the intervention disalignment of circumferential weld punch block 64, so circumferential weld pin 62 is along being that major axis and the elliptical path with width corresponding with the angle of swinging are moved with advance and retreat direction E1, E2.Common actions by means of between the inboard shift reciprocately driving that produce and eedle 17 of this movement locus forms seam as described above.
In order to reach the smooth and easy displacement of circumferential weld shank 60, to circumferential weld shank 60 by supplying lubricating oils in the circumferential weld shank support member 66, between drip ring suture needle bar 60 and the circumferential weld shank support member 66.In order to prevent this lubricant oil seepage outside circumferential weld shank support member 66, the circumferential weld shank sealing component 75 of tubular as other sealing components is installed respectively on circumferential weld shank support member 66, make it coaxial.Circumferential weld shank sealing component 75 is arranged at the end of the position opposite side of circumferential weld shank support member 66 and supplying lubricating oil.
Circumferential weld shank sealing component 75 is similar with shank sealing component 33,34, to the structure of circumferential weld shank sealing component 75 additional with above-mentioned shank sealing component 33,34 in the corresponding identical reference marks of structure, only describe, then omit its explanation for identical structure for different structures.
Referring to Fig. 8, circumferential weld shank sealing component 75 has: as the periphery base part 80 of other base parts; In all linking parts 81, be arranged at the inboard of periphery base part 80; Linking department 82 is used for linking periphery base part 80 and interior all linking parts 81.Periphery base part 80 roughly forms cylindric, and compares more outstanding to lubricated position 76 sides that are lubricated by lubricant oil with interior all linking parts 81.This circumferential weld shank sealing component 75 is set on the following protrusion 90 in an end of circumferential weld shank support member 66, inner peripheral surface 86 close proximity that make periphery base part 80 are to the outer circumferential face 87 of the protrusion 90 of circumferential weld shank support member 66, outer being set on the circumferential weld shank support member 66 of circumferential weld shank sealing component 75 are installed, and this protrusion 90 is that peripheral part is compared with remainder to the radially inner side formation of shrinking back.Lubricated position 76 are circumferential weld shanks 60 with circumferential weld shank support member 66 radially at interval lubricant oil relative position.
Under the state that is installed on the circumferential weld shank support member 66, be set to a side as interior all linking parts 81 of perimembranous in the circumferential weld shank sealing component 75, and touch in the outside of this lubricated position 76 on the outer circumferential face 88 of circumferential weld shank 60 for the position opposite of supplying lubricating oil.Interior all linking parts 81 have oil sealing portion 83 and the oil seal part 84 as other sealed departments.Oil sealing portion 83 and oil seal part 84 elasticity are received on the outer circumferential face 88 of circumferential weld shank 60 mutually.
On periphery base part 80, form abutted surface 53, be used for the axial direction displacement of circumferential weld shank support member 66 is supported.Abutted surface 53 has at least the face that the axial direction with respect to circumferential weld shank support member 66 tilts.In the present embodiment, the fitting projection 54 that is used for forming abutted surface 53 is formed on the periphery base part 80, and forms on circumferential weld shank support member 66 and be used for chimeric recess 55 that fitting projection 54 is embedded.The inner peripheral surface portion of fitting projection 54 its periphery base parts 40, outstanding and comprising the shape of cutting on the imaginary plane of axis after the fitting projection 54 to radially inner side forms circular-arc.Fitting projection 54 is identical positions for the axial direction of periphery base part 80, and is provided with on the scope of circumferencial direction complete cycle.The outer circumferential surface section 87 of chimeric recess 55 its circumferential weld shank support members 66, become spill and comprising shape after cutting fitting projection 54 on the imaginary plane of axis, form circular-arc to radially inner side.Chimeric recess 55 is identical positions for the axial direction of circumferential weld shank support member 66, and is provided with on the scope of circumferencial direction complete cycle.Forming of fitting projection 54, the center of circular arc begin to become the position of radially inner side from the inner peripheral surface 86 of periphery base part 80.Circumferential weld shank sealing component 75 is for periphery base part 80, has the configuration structure identical with the periphery base part 40 of each shank sealing component 33,34.
In addition, sealing component 33,34,75 had been replaced with new sealing component at 33,34,75 o'clock, because the worker makes the axis of 33,34,75 pairs of guide members 29,30,66 of sealing component produce, thereby can easily allow sealing component 33,34,75 break away from from guide member 29,30,66.In view of the above, changing sealing component 33,34,75 o'clock, can easily change.
In addition, on periphery base part 40,80, form the fitting projection 54 that is used for forming abutted surface 53, on guide member 29,30,66, form the chimeric recess 55 that is used for making fitting projection 54 embeddings.Thereby, be embedded in the chimeric recess 55 by fitting projection 54, can prevent really that periphery base part 40,80 from carrying out displacement with respect to guide member 29,30,66 at axial direction.Thereby, adopt chimeric recess 55 and fitting projection 54 such simply connect airtight structure, just can prevent really that sealing component 33,34,75 breaks away from from guide member 29,30,66.
In addition, the inner peripheral surface portion of fitting projection 54 its periphery base parts 40,80, outstanding and comprising the shape of cutting in the imaginary plane of axis after the fitting projection 54 to radially inner side forms circular-arc.Thereby, when being installed to sealing component 33,34,75 on the guide member 29,30,66, collude on the outer circumferential surface section 40,80 that is suspended to guide member 29,30,66 without fitting projection 54, just be directed on the chimeric recess 55.In view of the above, the worker can easily be installed to sealing component 33,34,75 on the guide member 29,30,66.
In addition, fitting projection 54 and chimeric recess 55 are provided with on the scope of circumferencial direction complete cycle respectively.Thereby fitting projection 54 and chimeric recess 55 can position, so that each axis of sealing component 33,34,75 and guide member 29,30,66 becomes coaxial.In view of the above, sealed department 50,52,83,84 is appropriately received on the live axle mutually, can be realized not in the scope of circumferencial direction, producing deviation and the structure of striking off effect of evenly bringing sealed department 50,52,83,84.In addition, because fitting projection 54 and chimeric recess 55 are provided with on the scope of circumferencial direction complete cycle respectively, thereby guide member 29,30,66 was installed sealing components at 33,34,75 o'clock the worker, and need not to carry out the location of circumferencial direction, therefore can easily install.
In addition, fitting projection 54 and chimeric recess 55 also can be formed at respectively on the part of circumferencial direction.In addition, fitting projection 54 and chimeric recess 55 also can be respectively by axial direction vacate form at interval a plurality of.In view of the above, can obtain to prevent the effect that causes because of a plurality of fitting projection 54 and chimeric recess 55 to make to prevent that sealing component 33,34,75 is improved from the effect that guide member 29,30,66 breaks away to the displacement of axial direction.In addition, can also reduce the force of sliding friction on fitting projection 54 and the chimeric recess 55, the effect of anticreep is improved.
Under the state that is installed on the shank support member 30, fitting projection 54 is formed at than interior all linking parts 41 inboard of arm rest portion 22 more.Therefore, if shank 12 downwards C2 carried out displacement and driving, then in all linking parts 41 produce distortion towards below C2.In addition, if circumferential weld shank 60 has carried out displacement and driving to approach axis E1, then interior all linking parts 81 produce distortion towards approach axis E1.If interior all linking parts 41,81 have produced distortion, then linking department 42,82 its be deformed into, be that angle displacement is carried out at the center with the end of radial outside.Utilize the distortion of this linking department 42,82, underpart as an end of periphery base part 40,80 axial directions produces distortion towards radial outside, and produces distortion as the upper end portion of periphery base part 40,80 axial direction the other end towards radially inner side.Thereby, fitting projection 54 is formed on axial direction the other end of periphery base part 40,80, and the axial direction central part that is formed on the inner peripheral surface 46,86 that is joined on the outer circumferential face 47,87 than guide member 29,30,66 more depends on top C1 and steps back on the position of direction E2, therefore can keep tightlock status, the effect of anticreep is further enhanced.
In addition, in the above-described embodiment, abutted surface 53 has utilized fitting projection 54 to realize, but is not limited to this.In addition, in the above-described embodiment, the fitting projection 54 that is used for forming abutted surface 53 is formed on the periphery base part 40,80, and forms on guide member 29,30,66 and be used for chimeric recess 55 that fitting projection 54 is embedded, but is not limited to this.Also can allow the fitting projection 54 that is used for forming abutted surface 53 be formed on the guide member 29,30,66, and on periphery base part 40,80, form and be used for chimeric recess 55 that fitting projection 54 is embedded.Whereby, also can reach same effect.
In addition, because live axle 12,60, guide member 29,30,66 and sealing component 33,34,75 combinations by above-mentioned the sort of material, dimensional accuracy and surface roughness form, thereby can bring into play the performance of each sealing component 33,34,75 really, reach higher sealing, utilize the shift reciprocately of live axle 12,60 to drive simultaneously and prevent that sealing component 33,34,75 breaks away from from guide member 29,30,66.
In addition, fitting projection 55 is formed at the radially inner side of core along axial direction.Owing to be formed at the radially inner side of core, thereby can strengthen the power of fitting projection 55 towards the radially inner side extruding.Therefore, can prevent that fitting projection 55 breaks away from from chimeric recess 54.
Above-mentioned mode of execution is example of the present invention only, and can change structure within the scope of the invention.For example, can also be with the respective embodiments described above appropriate combination in addition, and the structure of oil sealing portion and oil seal part is not defined as above-mentioned mode of execution.In addition, also can only relate to any of shank 12 and circumferential weld shank 60, realize sealing configuration.In addition, also can relate to the live axle outside shank 12 and the circumferential weld shank 60, as be used for keeping the depression bar of pressing plate 16, implement sealing configuration.
The present invention can adopt other various modes to be implemented in the scope that does not break away from its aim or major character.Therefore, above-mentioned mode of execution is in all respects nothing but example, and scope of the present invention is shown in the scope of claim, the specification text is not carried out any restriction.Moreover, belong to the claim scope distortion and the change all within the scope of the invention.
Claims (4)
1. sealing configuration comprises:
The guide member of tubular;
Live axle, coaxial break-through guide member, and carry out shift reciprocately at axial direction and drive;
Sealing component has the sealed department that the outer circumferential face elasticity of the base part that is installed on the guide member and interior perimembranous and live axle is joined;
It is characterized in that,
On the either party of base part and guide member, form the fitting projection that is used for forming abutted surface,
Form the chimeric recess that is used for making the fitting projection embedding on the opposing party in appointing of base part and guide member.
2. sealing configuration according to claim 1 is characterized by,
Live axle is the shank that is used for keeping the suture needle of sewing machine,
Sealing component is set on the guide member outward and installs.
3. sealing configuration according to claim 1 is characterized by,
Live axle is the circumferential weld shank that is used for keeping the circumferential weld pin of sewing machine,
Sealing component is set on the guide member outward and installs.
4. sealing configuration according to claim 1 is characterized by,
Above-mentioned fitting projection and above-mentioned chimeric recess are provided with on the circumferencial direction complete cycle respectively.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004159321A JP2005337441A (en) | 2004-05-28 | 2004-05-28 | Seal structure |
| JP159321/2004 | 2004-05-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1702342A CN1702342A (en) | 2005-11-30 |
| CN100383420C true CN100383420C (en) | 2008-04-23 |
Family
ID=35491229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100759427A Expired - Fee Related CN100383420C (en) | 2004-05-28 | 2005-05-26 | Sealing structure |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2005337441A (en) |
| KR (1) | KR100956288B1 (en) |
| CN (1) | CN100383420C (en) |
| TW (1) | TWI284715B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6604070B2 (en) * | 2015-07-24 | 2019-11-13 | 株式会社ジェイテクト | SEALING DEVICE AND BEARING DEVICE PROVIDED WITH THE SAME |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2451736Y (en) * | 2000-12-07 | 2001-10-03 | 丘凯 | Pressure reducing elastic sealing ring |
| CN1086754C (en) * | 1998-11-25 | 2002-06-26 | 长瑜企业股份有限公司 | Sewing machine with coaxial in-time driven needle bar and upper circumferential sewing mechanism |
| CN1495313A (en) * | 2002-09-19 | 2004-05-12 | 大和缝纫机制造株式会社 | Oil-leaking-proof device for sewing machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4195854A (en) * | 1975-10-14 | 1980-04-01 | Jacques Bertin | Shaft seal assemblies |
| JPH023001U (en) * | 1988-06-20 | 1990-01-10 | ||
| JP3475611B2 (en) * | 1995-10-27 | 2003-12-08 | Ｎｏｋ株式会社 | Sealing device |
| JP2000167286A (en) * | 1998-12-08 | 2000-06-20 | Yamato Sewing Mach Co Ltd | Sewing machine |
| JP4581309B2 (en) * | 2001-09-14 | 2010-11-17 | Ｎｏｋ株式会社 | Valve stem seal |
| JP2004068888A (en) * | 2002-08-05 | 2004-03-04 | Nok Corp | Valve stem seal |
-
2004
- 2004-05-28 JP JP2004159321A patent/JP2005337441A/en active Pending
-
2005
- 2005-05-23 TW TW094116715A patent/TWI284715B/en not_active IP Right Cessation
- 2005-05-25 KR KR1020050044139A patent/KR100956288B1/en not_active IP Right Cessation
- 2005-05-26 CN CNB2005100759427A patent/CN100383420C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086754C (en) * | 1998-11-25 | 2002-06-26 | 长瑜企业股份有限公司 | Sewing machine with coaxial in-time driven needle bar and upper circumferential sewing mechanism |
| CN2451736Y (en) * | 2000-12-07 | 2001-10-03 | 丘凯 | Pressure reducing elastic sealing ring |
| CN1495313A (en) * | 2002-09-19 | 2004-05-12 | 大和缝纫机制造株式会社 | Oil-leaking-proof device for sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005337441A (en) | 2005-12-08 |
| CN1702342A (en) | 2005-11-30 |
| TWI284715B (en) | 2007-08-01 |
| KR100956288B1 (en) | 2010-05-10 |
| TW200609438A (en) | 2006-03-16 |
| KR20060049456A (en) | 2006-05-19 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yamato Sewing Machine (Ningbo) Co., Ltd. Assignor: Yamato Mishin Seizo K. K. Contract fulfillment period: 2008.6.10 to 2014.6.9 contract change Contract record no.: 2009990000598 Denomination of invention: Pressure sealing structure for float in pressure containers Granted publication date: 20080423 License type: Exclusive license Record date: 2009.6.3 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.6.10 TO 2014.6.9; CHANGE OF CONTRACT Name of requester: DAHE SARTORIUS( NINGBO ) CO., LTD. Effective date: 20090603 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080423 Termination date: 20130526 |