CN202466157U - Sewing machine - Google Patents
Sewing machine Download PDFInfo
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- CN202466157U CN202466157U CN2011205799703U CN201120579970U CN202466157U CN 202466157 U CN202466157 U CN 202466157U CN 2011205799703 U CN2011205799703 U CN 2011205799703U CN 201120579970 U CN201120579970 U CN 201120579970U CN 202466157 U CN202466157 U CN 202466157U
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- lubricating oil
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Abstract
The utility model relates to a sewing machine capable of preventing heating and preventing lubricating oil leaked out of a bearing from polluting the surrounding. A lower rotating shaft is arranged inside a base part, and a bearing part arranged at the left side of the lower rotating shaft is used for supporting the lower rotating shaft; bearing support parts arranged inside the base part are used for supporting the bearing part, and bearing hole parts through which the lower rotating shaft penetrates are arranged at the bearing support parts arranged at the left side and the right side of the bearing part; a lubricating oil groove part is arranged around the inner circumferential wall of the bearing hole part, and the lubricating oil supplied to the bearing part through a first supply path is leaked to the outside along a gap between the through hole of the bearing part and the lower rotating shaft; and the leaked lubricating oil is received by the lubricating oil groove part, and a discharging path connected with the lubricating oil groove part is used for discharging the lubricating oil accumulated in the lubricating oil groove part.
Description
Technical field
The utility model relates to a kind of Sewing machines that lubricant is supplied to bearing.
Background technology
The lubricant that supplies in the bearing is outside to bearing through the clearance leakage between rotating shaft and the bearing sometimes, and above-mentioned bearing supports the rotating shaft of mechanisms such as the gear of driving Sewing machines and shuttle.The lubricant that leaks pollutes sewn object and suture sometimes.The Sewing machines that Japanese Patent Laid discloses 1997 No. 164285 communique is put down in writing comprises the oil seal that is embedded in the gap between rotating shaft and the bearing, can prevent that lubricant from leaking into the bearing outside.
In above-mentioned Sewing machines, oil seal is contacted with rotating shaft.Therefore, when rotating shaft is rotated, because of the friction between rotating shaft and the oil seal, the oil seal heating.Exist the heat of oil seal to be passed to sewing machine main body, thereby make the operator produce the problem of discomfort.
The utility model content
The purpose of the utility model is to provide a kind of can preventing to generate heat and can prevent the lubricant contamination Sewing machines on every side from the bearing leakage.
The Sewing machines of technical scheme 1 comprises: bearing portion, and this bearing portion supports the rotating shaft of rotating along with the driving of Sewing machines; Supply with the road, this supply road supplies to lubricant the part that contacts with above-mentioned rotating shaft at least of above-mentioned bearing portion; And bearings portion; This bearings portion has the dead eye portion of accommodating above-mentioned bearing portion; Length on the above-mentioned rotor shaft direction in edge of the above-mentioned dead eye portion of above-mentioned bearings portion is longer than the length of above-mentioned bearing portion; The end outside of above-mentioned bearings portion on the above-mentioned rotating shaft bearing of trend of above-mentioned bearing portion is formed with the lubricant slot part, and this lubricant slot part is along the internal perisporium setting of above-mentioned dead eye portion, and the above-mentioned lubricant that supplies to above-mentioned bearing portion via above-mentioned supply road is accepted.
Be located at the lubricant slot part of the dead eye portion of bearings portion and can accept the lubricant that leaks from bearing portion.Therefore, the sewing function prevents that lubricant from leaking into the outside from bearings portion.Can be not contaminated around the bearings portion of Sewing machines.Sewing machines need not be provided with and prevent that lubricant from leaking into outside oil seal.Heating when therefore, the sewing function prevents the rotating shaft rotation.The operator can cosily make operation.
The Sewing machines of technical scheme 2 comprises the resettlement section of accommodating above-mentioned lubricant and being connected with above-mentioned supply road, and the above-mentioned lubricant that above-mentioned supply road will be contained in above-mentioned resettlement section supplies to the part that contacts with above-mentioned rotating shaft at least of above-mentioned bearing portion.Therefore, the sewing function lubricant that will be contained in the resettlement section supplies to bearing portion.Sewing machines need be from outside supply of lubricant.
The Sewing machines of technical scheme 3 comprises discharges the road, and this is discharged road and is connected with above-mentioned lubricant slot part, and the above-mentioned lubricant that above-mentioned lubricant slot part is accepted is from the portion's discharge outwardly of above-mentioned lubricant slot part, and above-mentioned resettlement section is connected with above-mentioned discharge road.The lubricant that the sewing function is accepted the lubricant slot part is discharged.Therefore, the sewing function prevents that a large amount of lubricants from lodging in the lubricant slot part and overflow.The sewing function is utilized the resettlement section to reclaim and is discharged the lubricant that discharge on the road.Therefore, the lubricant of recovery can be utilized as the lubricant that supplies to bearing portion again.
The Sewing machines of technical scheme 4～6 comprises the supply member of rope form, and this supply member comprises: be disposed at the part in the above-mentioned lubricant slot part; And the part that is disposed at the position that is connected with the drive division of above-mentioned Sewing machines, the above-mentioned lubricant that above-mentioned supply member is accepted above-mentioned lubricant slot part supplies to above-mentioned drive division.Supply member can directly supply to the drive division in the Sewing machines with the lubricant that the lubricant slot part is accepted.Therefore, Sewing machines need not be provided with the mechanism's (pump, stream) that the lubricant that is contained in the resettlement section is supplied to drive division, can simplify the inner structure of Sewing machines.Especially when driving part is near bearings portion, can further simplify the inner structure of Sewing machines.
The above-mentioned bearing portion of the Sewing machines of technical scheme 7 comprises pump, and this pump utilizes the rotary driving force of above-mentioned rotating shaft, above-mentioned lubricant is supplied to the drive division of above-mentioned Sewing machines via above-mentioned supply road.Therefore, the sewing function lubricant that will supply to bearing portion reliably supplies to drive division.When the lubricant that supplies to pump when bearing portion leaks, the sewing function utilizes the lubricant slot part to accept the lubricant of leakage.
In the Sewing machines of technical scheme 8, above-mentioned resettlement section is the fuel tank that can accommodate above-mentioned lubricant, and above-mentioned fuel tank comprises: periphery wall, the peristome that the above-mentioned lubricant that this periphery wall formation confession falls in above-mentioned Sewing machines inside passes through; Diapire, this diapire is relative with above-mentioned peristome; The subtend wall, this subtend wall is located at the inboard of above-mentioned periphery wall, and is located at the position of leaving above-mentioned diapire between above-mentioned peristome and the above-mentioned diapire, is the wall portion relative with above-mentioned diapire; And accepting hole portion, this accepting hole portion is along running through above-mentioned subtend wall from above-mentioned peristome towards the direction of above-mentioned diapire.Lubricant after the use drops on the subtend wall through peristome.Therefore, fuel tank can reclaim the lubricant after the use reliably.The lubricant that falls on the subtend wall accumulates in the space between diapire and the subtend wall through accepting hole portion.When Sewing machines vibrates, lodge in the lubricant vibration in the space between diapire and the subtend wall.Owing to be provided with the subtend wall, therefore, even if the lubricant vibration, lubricant can not leak into the outside from the resettlement section yet.Therefore, the sewing function prevents that lubricant from leaking into the outside of resettlement section.
Description of drawings
Fig. 1 is the front view of Sewing machines 1.
Fig. 2 is the stereogram of internal structure of outward appearance and the pedestal part 21 of Sewing machines 1.
Fig. 3 is the stereogram of the driving mechanism of Sewing machines 1 inside.
Fig. 4 is that the I-I alignment of Fig. 2 is looked cutaway view.
Fig. 5 is the upward view in the pedestal part 21 of Sewing machines 1.
Fig. 6 is the stereogram of fuel tank 10.
Fig. 7 is the stereogram of fuel tank 10.
Fig. 8 is the plane of fuel tank 10.
Fig. 9 is that the V-V alignment of Fig. 8 is looked cutaway view.
Figure 10 is that the II-II alignment of Fig. 5 is looked cutaway view.
Figure 11 is that the III-III alignment of Fig. 4 is looked cutaway view.
Figure 12 is that IV-IV alignment of Fig. 4 is looked cutaway view.
The specific embodiment
Describe with reference to the embodiment of accompanying drawing the utility model.The paper face side of Fig. 1, paper rear side, upside, downside, left side, right side are respectively front side, rear side, right side, left side, upside, the downsides of Sewing machines 1.
With reference to Fig. 1, Fig. 2, the overall structure of Sewing machines 1 is described.As shown in Figure 1, Sewing machines 1 comprises pedestal part 21, uprights 22, horn portion 23.Pedestal part 21 is extended along left and right directions.Pedestal part 21 is located on the not shown workbench.As shown in Figure 2, pedestal part 21 portion within it is provided with the fuel tank 10 of accommodating lubricating oil, rotating shuttle 46 etc.Uprights 22 is extended towards the top from pedestal part 21 right-hand members.Horn portion 23 extends towards left from uprights 22 upper ends, and relative with pedestal part 21.Horn portion 23 is provided with eedle 42 (with reference to Fig. 1) below its left end.Eedle 42 moves back and forth up and down according to the driving of motor of sewing machine (not shown).Horn portion 23 is provided with slit 45 in its left end front side.Slit 45 extends along the vertical direction.Thread take-up tension lever 44 is given prominence to towards outside from slit 45.Thread take-up tension lever 44 moves up and down along slit 45 along with moving up and down of eedle 42.
With reference to Fig. 3～Fig. 5, the driving mechanism of Sewing machines 1 is described.As shown in Figure 3, Sewing machines 1 comprises rotating shaft 31, links rotating shaft 33, lower rotary shaft 36, horizontal cloth pushing shaft 38, cloth pushing shaft 39 up and down.Last rotating shaft 31 is extended along left and right directions in horn portion 23 (with reference to Fig. 1).Linking rotating shaft 33 extends in uprights 22 (with reference to Fig. 1) along the vertical direction.Lower rotary shaft 36 extends along left and right directions in pedestal part 21 (with reference to Fig. 1).Horizontal cloth pushing shaft 38 is located in the pedestal part 21 and is leaned on lower rotary shaft 36 rear sides.Cloth pushing shaft 39 is located in the pedestal part 21 and is leaned on lower rotary shaft 36 front sides up and down.
Motor of sewing machine is located at rotating shaft 31 right-hand members.Bearing portion 47 partly supports rotating shaft 31 on this in the left and right directions substantial middle of last rotating shaft 31.Bearing portion 47 is cylindrical.Bearing portion 47 is taken into lubricating oil from the hole of being located at its front side.After state the second supply road 82 and be connected with this hole.The second supply road 82 is taken into this hole with lubricating oil.Bearing portion 47 is taken into lubricating oil in the hole of being located in the rotating shaft 31 (not shown).The hole make bearing portion 47 with after link to each other near the gear 32 of the umbrella stated.The hole supplies to gear 32 with lubricating oil from the hole (not shown) of being located near the last rotating shaft 31 the gear 32.The right side of last rotating shaft 31 part of rotating shaft 31 on bearing portion 47 supports and lean on gear 32 left sides to be provided with crank 17.
Sewing machines 1 has the shank up-down mechanism 41 that eedle 42 is moved up and down.Shank up-down mechanism 41 is located at rotating shaft 31 left ends.41 pairs of shanks 43 that in horn portion 23 (with reference to Fig. 1), extend along the vertical direction of shank up-down mechanism support.Eedle 42 is located at shank 43 lower ends.Last rotating shaft 31 is rotated along with the driving of motor of sewing machine.Shank up-down mechanism 41 drives along with the rotation of last rotating shaft 31.Shank 43 moves up and down along with the driving of shank up-down mechanism 41.
The gear 34 of umbrella is located at and is linked rotating shaft 33 upper ends.Gear 34 and 32 engagements of the gear of being located at rotating shaft 31.Linking rotating shaft 33 rotates along with the rotation of last rotating shaft 31.The gear 35 of umbrella is located at and is linked rotating shaft 33 lower ends.The rotary driving force that binding rotating shaft 33 will be gone up rotating shaft 31 is delivered to lower rotary shaft 36.
The gear 37 of umbrella is located at lower rotary shaft 36 right-hand members.Gear 37 and gear 35 engagements of being located at binding rotating shaft 33 lower ends.Lower rotary shaft 36 rotates along with the rotation that links rotating shaft 33.Bearing portion 48 is located at the left and right directions substantial middle part of lower rotary shaft 36.Bearing portion 48 supports lower rotary shaft 36.Bearing portion 48 is cylindrical.Rotating shuttle 46 (with reference to Fig. 2) is located at lower rotary shaft 36 left ends.Rotating shuttle 46 drives along with the rotation of lower rotary shaft 36, and synchronously rotates with moving up and down of eedle 42.
The bearing portion 50 that is located at rotating shuttle 46 right sides supports lower rotary shaft 36.Bearing portion 50 is cylindrical.Through hole 51 runs through bearing portion 50 inside along left and right directions.Lower rotary shaft 36 passes through hole 51 (with reference to Fig. 4).The diameter of the diameter of through hole 51 and lower rotary shaft 36 is roughly the same.Bearing portion 50 comprises plunger displacement pump 53 (with reference to Fig. 4).The lubricating oil of stating fuel tank 10 after plunger displacement pump 53 will be contained in sucks via the first supply road 81, and it is seen off towards the second supply road 82.See lubricating oil inflow bearing portion 47 off to the second supply road 82.Discharging road 83 will discharge towards fuel tank 10 from the lubricating oil that plunger displacement pump 53 spills.
Crank 17 is located at rotating shaft 31.Bar 18 extends from crank 17 towards the rear and towards the below.Bar 18 is connected with horizontal cloth pushing shaft 38.Bar 19 extends towards the place ahead and towards the below from crank 17.Bar 19 is connected with cloth pushing shaft 39 up and down.Horizontal cloth pushing shaft 38 and cloth pushing shaft 39 swing when crank 17 rotations up and down.Horizontal cloth feeding mechanism 380 is located at horizontal cloth pushing shaft 38 lefts.Cloth feeding mechanism 390 is located at cloth pushing shaft 39 lefts up and down up and down.Feed dog 49 is located at the horizontal cloth feeding mechanism 380 and the fore-and-aft direction substantial middle of cloth feeding mechanism 390 up and down.Feeding tooth 49 along with horizontal cloth pushing shaft 38 and up and down the swing of cloth pushing shaft 39 by via horizontal cloth feeding mechanism 380 and 390 drivings of cloth feeding mechanism up and down.Feeding tooth 49 is in the machining cloth (not shown) that transmits on the fore-and-aft direction on the pedestal part 21.
With reference to Fig. 5～Figure 10, fuel tank 10 is described.Fuel tank 10 is formed by translucent resin, and it is fixed in the pedestal part 21 of uprights 22 belows.
Diapire 102 has first diapire 1021, second diapire 1022.First diapire 1021 is formed in the whole zone of fore-and-aft direction of pedestal part 21, in the form of a substantially rectangular.Second diapire 1022 is outstanding towards left from the left side rear end part of first diapire 1021.
Recess 1213 is located at the fore-and-aft direction substantial middle part of first diapire, 1021 left ends.Other part of recess 1213 to the first diapires 1021 left ends caves in towards the right-hand member side.Diapire recess 1212 is located at the recess 1213 rear side lower surfaces of first diapire 1021.Diapire recess 1212 forms the rectangle of the depression from first diapire, 1021 lower surfaces towards the top.Magnet (not shown) embeds diapire recess 1212 from the outside of fuel tank 10.Therefore, can the iron powder that contain in the lubricating oil in the lubricating oil resettlement section 12 etc. be adsorbed onto near the diapire recess 1212.First diapire, 1021 right side front ends, rear end form the shape behind the excision bight.
Periphery wall 101 has sidewall 1011～1016 etc.Sidewall 1011 is connected with first diapire, 1021 right-hand members.Sidewall 1012 is connected with first diapire, 1021 front ends.Sidewall 1013 is connected with first diapire, 1021 left ends.Sidewall 1014 is connected with first diapire, 1021 rear ends, second diapire, 1022 rear ends.Sidewall 1015 is connected with second diapire, 1022 front ends.Sidewall 1016 is connected with second diapire, 1022 left ends.The height of sidewall 1011,1012,1014 is roughly the same.The height of sidewall 1013,1015,1016 is roughly the same, and be sidewall 1011,1012,1014 height roughly 1/2nd.Sidewall 1013 forms the shape that first diapire 1021 is extended towards vertical, therefore has recess 1213.The upper end of sidewall 1012 left end portion is outstanding towards left from the pars intermedia of short transverse.The part with sidewall 1014 connects of sidewall 1016 forms the height identical with sidewall 1014.Sidewall 1016 form the height roughly the same than the part of the forward side of fore-and-aft direction central portion with sidewall 1015.
The short transverse that the first subtend wall 113 is located at sidewall 1011,1012,1014 is pars intermedia roughly.The first subtend wall 113 and first diapire, 1021 almost parallels.The first subtend wall 113 is located between the case peristome 103 (afterwards stating) and first diapire 1021, and is located at the position of leaving first diapire 1021.The first subtend wall 113 is relative with first diapire 1021 in the inboard of periphery wall 101.Sidewall 1017 extends towards vertical from the first subtend wall, 113 left ends.The fore-and-aft direction length of sidewall 1017 is shorter than the fore-and-aft direction length of the first subtend wall 113.The front and back end of sidewall 1017 is not connected with sidewall 1012, sidewall 1014.The first subtend wall 113 is connected with sidewall 1013 upper ends.
The first subtend wall 113 is provided with accepting hole portion 1131 on the front side of fore-and-aft direction central authorities, the right side of left and right directions central authorities.Periphery wall 101 leaves in accepting hole portion 1131.The first subtend wall 113 comprises first rake 1132.Square neck is oblique down towards accepting hole portion 1131 sides from sidewall 1012,1014 for first rake 1132.The lubricating oil that first rake 1132 will fall to the upper surface of the first subtend wall 113 guides towards accepting hole portion 1131.The first subtend wall 113 is provided with slot part 1133.Slot part 1133 is around accepting hole portion 1131.Slot part 1133 is the grooves that are provided with towards the below from the upper surface of the first subtend wall 113.When lubricating oil moved towards first diapire 1021 through accepting hole portion 1131, slot part 1133 was removed foreign matters such as the dust that contains in the lubricating oil, the end of a thread.The operator can utilize slot part 1133 Laian County's fixed filters (not shown).
The second subtend wall 114 is located at the top of second diapire 1022.The second subtend wall 114 is connected with sidewall 1015, sidewall 1016, sidewall 1014, the first subtend wall 113.Roughly front side half one of the second subtend wall 114 swells towards the top.Roughly rear side half one of the second subtend wall 114 is second rakes 1141 (with reference to Fig. 9).Second rake 1141 is smooth, and right-hand member is lower than left end.The second subtend wall, 114 right-hand members are connected with the first subtend wall 113.
Drip towards the below in uprights 22 (with reference to Fig. 1) via the second supply road 82 and the lubricating oil that bearing portion 47 supplies to gear 32 (with reference to Fig. 3).Lubricating oil carrier 11 can be accepted the lubricating oil of drippage.When supply has the gear 32 of lubricating oil to rotate with gear 34, lubricating oil can become vaporific and disperse to around.The vaporific lubricating oil that disperses can disperse in uprights 22.The vaporific lubricating oil that disperses drips, and drips towards the below.Lubricating oil carrier 11 can be accepted the lubricating oil of drippage.
The lubricating oil that supplies to the Sewing machines drive division accumulates lubricating oil resettlement section 12 through first rake 1132, accepting hole portion 1131.
As stated, the lubricating oil carrier 11 of fuel tank 10 is positioned at uprights 22 downsides.Lubricating oil carrier 11 can be accepted the lubricating oil that supplies to gear 32.Therefore, fuel tank 10 can reclaim the lubricating oil that supplies to gear 32 reliably.The lubricating oil that fuel tank 10 can will lodge on the first subtend wall 113, the second subtend wall 114 is accommodated lubricating oil resettlement section 12 via accepting hole portion 1131.When Sewing machines 1 vibration, be contained in the lubricating oil vibration in the lubricating oil resettlement section 12.The first subtend wall 113, the second subtend wall 114 can prevent that oil leak from arriving the outside of lubricating oil resettlement section 12.
With reference to Fig. 4, Fig. 5, Figure 11, Figure 12, bearing portion 50 is described with periphery.As shown in Figure 4, bearing portion 50 has the through hole 51 that extends about the edge.Lower rotary shaft 36 passes through hole 51 inside.Bearings portion 61 is located in the pedestal part 21, from covering on every side and spring bearing portion 50.Bearings portion 61 has dead eye portion 62,63.Dead eye portion 62 is located at the right side of bearing portion 50.Dead eye portion 63 is located at the left side of bearing portion 50.Lower rotary shaft 63 passes dead eye portion 62,63.The diameter of dead eye portion 62,63 and the external diameter of bearing portion 50 are roughly the same.Dead eye portion 62 is communicated with dead eye portion 63.Lubricating oil slot part 64 is slot parts of being located at the internal perisporium of dead eye portion 62.Lubricating oil slot part 64 is positioned at the left side of bearing portion 50 left ends.Lubricating oil slot part 65 is slot parts of being located at the internal perisporium of dead eye portion 63.Lubricating oil slot part 65 is positioned at the right side of bearing portion 50 right-hand members.
Shown in figure 11, plunger displacement pump 53 is located at bearing portion 50 inside.Plunger displacement pump 53 comprises cam 54, plunger 55, spring 56, flows into road 57, flows out road 58.Cam 54 is eccentric cams.Cam 54 is disposed at the top of hole portion 52, and this hole portion 52 is located at bearing portion 50 downsides.Cam 54 is parts of lower rotary shaft 36.In the part suitable with cam 54 of lower rotary shaft 36, the distance from the center to the circumference of specific part is shorter than the distance from the center to the circumference of other part.Plunger 55 is located in the hole portion 52.Spring 56 is located in the hole portion 66.56 pairs of plungers 55 of spring are the application of force towards the top.
Flowing into road 57 is streams that extend towards the center of bearing portion 50 the perisporium front side (left side of Figure 11) from bearing portion 50.Flowing into road 57 is connected with through hole 51.Stream 68 is towards flowing into road 57 supplying lubricating oils.Stream 68 extends towards the top from bearings portion 61 lower ends, and is connected with inflow road 57.Stream 68 lower ends are connected with the first supply road 81.As shown in Figure 5, the first supply road 81 is connected with fuel tank 10.
Shown in figure 11, flowing out road 58 is the streams that extend towards bearing portion 50 rears (Figure 11 right side) from through hole 51.Flow out road 58 in bearing portion 50 towards left (rear side of Figure 11) bending.Also the center position towards bearing portion 50 is crooked to flow out road 58.Flowing out road 58 is connected with the portion of accumulating 59 (with reference to Fig. 4).Accumulate the inwall that portion 59 is located at through hole 51.Accumulate portion 59 and form concavity.Lubricating oil flows out from flowing out road 58, and lodges in the portion of accumulating 59.The lubricating oil that accumulates flows out towards the outside of bearing portion 50 via not shown stream.This stream extends in bearings portion 61 from the portion of accumulating 59 towards the below.This stream lower end is connected (with reference to Fig. 5) with the second supply road 82.As shown in Figure 3, the second supply road 82 in pedestal part 21 from bearings portion 61 towards right-hand extension, and fuel tank 10 upsides towards above crooked.Extend towards the top in uprights 22 (with reference to Fig. 2) on the second supply road 82, and be connected with the hole of bearing portion 47 front sides.
As shown in Figure 4, lower rotary shaft 36 inside are located on the 3rd supply road 69.The 3rd supply road 69 is the streams that in lower rotary shaft 36, extend vertically, and the 3rd supply road 69 right-hand members are connected with the portion that accumulates 59 that is located at through hole 51.Rotating shuttle 46 (with reference to Fig. 2) is located at lower rotary shaft 36 left sides.The 3rd supply road 69 left ends are connected to rotating shuttle 46 inside.The lubricating oil that the 3rd supply road 69 can will lodge in the portion of accumulating 59 supplies to rotating shuttle 46.
Shown in figure 12, stream 71 extends towards the top from bearings portion 61 lower ends.Stream 71 upper ends are connected with lubricating oil slot part 65 downsides of being located at bearings portion 61.Stream 71 lower ends are connected with discharge road 83.Discharge road 83 and be connected (with reference to Fig. 5) with fuel tank 10.Link stream 67 and be located at the coupling part rear side (right side of Figure 12) of lubricating oil slot part 65 and stream 71.Linking stream 67 extends along left and right directions in bearings portion 61.Linking stream 67 left ends is connected with lubricating oil slot part 64 (with reference to Fig. 4).Linking stream 67 right-hand members is connected with lubricating oil slot part 65.
Like Fig. 3, shown in Figure 4, supply member 91 is rope form.The a part of flood lubrication oil groove portion 64 of supply member 91.As shown in Figure 3, supply member 91 rear ends get in the hole of being located in the horizontal cloth pushing shaft 38.Supply member 91 supplies to horizontal cloth feeding mechanism 380 via horizontal cloth pushing shaft 38 with the lubricating oil in the lubricating oil slot part 64.
In the hole about supply member 91 front ends get into and are located in the cloth pushing shaft 39.Supply member 91 can be via cloth feeding mechanism 390 about cloth pushing shaft 39 supplies to the lubricating oil in the lubricating oil slot part 64 up and down.
With reference to Figure 11, Figure 12, the driving principle of plunger displacement pump 53 is described.When cam 54 rotated along with the rotation of lower rotary shaft 36, plunger 55 moved towards the below.When plunger 55 when move the below, the pressure of being located in the hole portion 52 of bearing portion 50 reduce.Therefore, lubricating oil via the first supply road 81, stream 68, flow into road 57 in fuel tank 10 (with reference to Fig. 5) ostium portion 52.Lubricating oil in the ostium portion 52 arrives the lower rotary shaft 36 of rotation and the contact portion between the through hole 51 in the bearing portion 50.Therefore, Sewing machines 1 can suppress the heating that produces because of friction, thereby can prevent sintering phenomenon.
When lower rotary shaft 36 was further rotated, plunger 55 moved towards the top.Plunger 55 is released the lubricating oil in the hole portion 52 towards flowing out road 58.Flow out to the lubricating oil that flows out road 58 and lodge in the portion of accumulating 59 (with reference to Fig. 4).The lubricating oil that plunger 55 is released will lodge in the lubricating oil of the portion of accumulating 59 and see off towards the second supply road 82.As shown in Figure 3, the lubricating oil that passes out to the second supply road 82 flows into the hole of being located in the rotating shaft 31 (not shown).Bearing portion 47 will be from the second supply road lubricating oil of 82 ostiums supply to gear 32.The heating that friction when the lubricating oil that supplies to gear 32 can suppress to rotate with gear 34 because of gear 32 produces, thus sintering phenomenon can be prevented.The lubricating oil that plunger 55 is released will lodge in the lubricating oil of the portion of accumulating 59 and see off towards the 3rd supply road 69 (with reference to Fig. 4).See lubricating oil inflow rotating shuttle 46 off to the 3rd supply road 69.Rotating shuttle 46 drives swimmingly.Therefore, plunger displacement pump 53 can supply to the driving mechanism in the Sewing machines 1 with the lubricating oil that is contained in fuel tank 10 reliably.
Along with the driving of plunger displacement pump 53, the part of lubricating oil flows into bearing portion 50 from fuel tank 10.The part of lubricating oil arrives bearing portion 50 left sides and right side along bearing portion 50 interior through hole 51 and the clearance leakages between the lower rotary shaft 36 sometimes.As shown in Figure 4, be located at the lubricating oil slot part 64 in bearing portion 50 left sides and can accept the lubricating oil that leaks into bearing portion 50 left sides.Be located at the lubricating oil slot part 65 on bearing portion 50 right sides and can accept the lubricating oil that leaks into bearing portion 50 right sides.Therefore, lubricating oil slot part 64,65 can prevent that lubricating oil from leaking into the outside from bearings portion 61.The lubricating oil that lubricating oil slot part 64 is accepted flows into lubricating oil slot part 65 via linking stream 67 (with reference to Figure 12).The lubricating oil that lodges in lubricating oil slot part 65 is discharged from bearings portion 61 via discharging road 83, flows into fuel tank 10 then.Therefore, lubricating oil slot part 64,65 can not accumulate a large amount of lubricating oil.Sewing machines 1 can prevent that lubricating oil from overflowing from lubricating oil slot part 64,65.Can and be utilized again as the lubricating oil that supplies to bearing portion 50 via the lubricating oil of discharging road 83 inflow fuel tanks 10.
As described above said, Sewing machines 1 can utilize lubricating oil slot part 64,65 to accept the lubricating oil that leaks from bearing portion 50.Sewing machines 1 can prevent that lubricating oil from leaking into the outside from bearings portion 61.Therefore, around Sewing machines 1 can prevent to leak into outside lubricant pollution from bearings portion 61.Sewing machines 1 need not be set to prevent that oil leak from arriving the outside and normally used oil seal of bearings portion 61.Therefore, Sewing machines 1 can prevent the heat that the friction because of lower rotary shaft 36 and oil seal produces.Because Sewing machines 1 does not generate heat, so the operator can cosily make operation.
The utility model also can carry out various distortion except above-mentioned embodiment.Lubricating oil also can be other material that can prevent frictional heat, wearing and tearing.For example also can use grease.Also can lubricating oil be supplied to the driving mechanism beyond the gear 32 via the second supply road 82.For example can lubricating oil be supplied to gear 35,37.Bearing portion 50 also can not comprise plunger displacement pump 53.Under above-mentioned situation, other pump is located in the fuel tank 10.Perhaps, plunger displacement pump is located at other bearing portion.
The external diameter of the also comparable bearing of the diameter portion 50 of dead eye portion 62,63 is little.Lubricating oil slot part 64,65 can be accepted more reliably from bearing portion 50 and leak into outside lubricating oil.Therefore, Sewing machines 1 can prevent lubricant pollution bearings portion 61 around.
Can the lubricating oil that the lubricating oil carrier 11 of fuel tank 10 is accepted directly not supplied to the driving mechanism in the Sewing machines 1 via bearing portion 50 yet.For example shown in Figure 3, the supply member 92 of the rope form of distolateral flood lubrication oil carrier 11 also can be set.Another of supply member 92 is distolateral also can be connected with shank up-down mechanism 41.Sewing machines 1 also can make lubricating oil move towards shank up-down mechanism 41 along supply member 92, thereby lubricating oil is supplied to shank up-down mechanism 41.
The bearing portion 50 of Fig. 3 is equivalent to the bearing portion of the utility model, and the first supply road 81 is equivalent to the supply unit of the utility model.The lubricating oil slot part 64,65 of Fig. 4 is equivalent to the lubricant slot part of the utility model, and fuel tank 10 is equivalent to the resettlement section of the utility model.The horizontal cloth feeding mechanism 380 of Fig. 3, cloth feeding mechanism 390 is equivalent to the drive division of the utility model up and down.The plunger displacement pump 53 of Figure 11 is equivalent to the pump of the utility model.
Claims (8)
1. Sewing machines comprises:
Bearing portion (50), this bearing portion supports the rotating shaft (36) of rotating along with the driving of Sewing machines;
Supply with road (81), this supply road supplies to lubricant the part that contacts with said rotating shaft at least of said bearing portion; And
Bearings portion (61), this bearings portion have the dead eye portion (62,63) of accommodating said bearing portion,
It is characterized in that,
Length on the said rotor shaft direction in edge of the said dead eye portion of said bearings portion is longer than the length of said bearing portion,
The end outside of said bearings portion on the said rotating shaft bearing of trend of said bearing portion is formed with lubricant slot part (64,65); This lubricant slot part is along the internal perisporium setting of said dead eye portion, and the said lubricant that supplies to said bearing portion via said supply road is accepted.
2. Sewing machines as claimed in claim 1 is characterized in that,
Comprise the resettlement section (10) of accommodating said lubricant and being connected with said supply road,
The said lubricant that said supply road will be contained in said resettlement section supplies to the part that contacts with said rotating shaft at least of said bearing portion.
3. Sewing machines as claimed in claim 2 is characterized in that,
Comprise and discharge road (83), this is discharged road and is connected with said lubricant slot part, and the said lubricant that said lubricant slot part is accepted is from the portion's discharge outwardly of said lubricant slot part,
Said resettlement section is connected with said discharge road.
4. Sewing machines as claimed in claim 1 is characterized in that,
Comprise the supply member (91) of rope form, this supply member comprises: be disposed at the part in the said lubricant slot part; And the part that is disposed at the position that is connected with the drive division (380,390) of said Sewing machines,
The said lubricant that said supply member is accepted said lubricant slot part supplies to said drive division.
5. Sewing machines as claimed in claim 2 is characterized in that,
Comprise the supply member (91) of rope form, this supply member comprises: be disposed at the part in the said lubricant slot part; And the part that is disposed at the position that is connected with the drive division (380,390) of said Sewing machines,
The said lubricant that said supply member is accepted said lubricant slot part supplies to said drive division.
6. Sewing machines as claimed in claim 3 is characterized in that,
Comprise the supply member (91) of rope form, this supply member comprises: be disposed at the part in the said lubricant slot part; And the part that is disposed at the position that is connected with the drive division (380,390) of said Sewing machines,
The said lubricant that said supply member is accepted said lubricant slot part supplies to said drive division.
7. like each described Sewing machines in the claim 1 to 6, it is characterized in that,
Said bearing portion comprises pump (53), and this pump utilizes the rotary driving force of said rotating shaft, said lubricant is supplied to the drive division of said Sewing machines via said supply road.
8. Sewing machines as claimed in claim 2 is characterized in that,
Said resettlement section is the fuel tank that can accommodate said lubricant,
Said fuel tank comprises:
Periphery wall (101), the peristome (103) that the said lubricant that this periphery wall formation confession falls in said Sewing machines inside passes through;
Diapire (102), this diapire is relative with said peristome;
Subtend wall (113), this subtend wall is located at the inboard of said periphery wall, and is located at the position of leaving said diapire between said peristome and the said diapire, is the wall portion relative with said diapire; And
Accepting hole portion (1131), this accepting hole portion is along running through said subtend wall from said peristome towards the direction of said diapire.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-291195 | 2010-12-27 | ||
| JP2010291195A JP2012135530A (en) | 2010-12-27 | 2010-12-27 | Sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202466157U true CN202466157U (en) | 2012-10-03 |
Family
ID=46673491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205799703U Expired - Fee Related CN202466157U (en) | 2010-12-27 | 2011-12-26 | Sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2012135530A (en) |
| CN (1) | CN202466157U (en) |
-
2010
- 2010-12-27 JP JP2010291195A patent/JP2012135530A/en active Pending
-
2011
- 2011-12-26 CN CN2011205799703U patent/CN202466157U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012135530A (en) | 2012-07-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20171226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |