CN102587051B

CN102587051B - Sewing machine and oil tank

Info

Publication number: CN102587051B
Application number: CN201110463028.5A
Authority: CN
Inventors: 世古祥吾
Original assignee: Brother Industries Ltd
Current assignee: Brother Industries Ltd
Priority date: 2010-12-27
Filing date: 2011-12-26
Publication date: 2014-05-14
Anticipated expiration: 2031-12-26
Also published as: JP2012135527A; CN202786727U; CN102587051A

Abstract

The invention relates to a sewing machine and an oil tank, where oil leakage from the oil tank can be prevented. The oil tank is fixedly arranged at the bottom pedestal of the sewing machine. The oil tank is divided to two layers of an oil receiving part and an oil accommodating part. The oil receiving part receives oil falling from the column of the sewing machine. The oil accommodating accommodates oil for lubrication. The oil tank includes an external periphery wall, a bottom wall, a first opposite wall and an accommodating hole part. An open part is formed at the external periphery wall. The bottom wall opposite to the open part is arranged at the bottom of the oil tank. The first opposite wall is arranged at the inner side of the periphery wall, and the position between the open part and the bottom wall and separated from the bottom wall. The accommodating hole part is arranged at the first opposite wall.

Description

Sewing machines and fuel tank

Technical field

The present invention relates to a kind ofly accommodate oily fuel tank and comprise the Sewing machines of fuel tank.

Background technology

The Sewing machines that comprises fuel tank is known.Fuel tank is accommodated the oil of the lubricated use of the mechanism for being supplied to Sewing machines.For example No. 4135136 communique of Japanese Patent Laid disclosed at erection position and the Sewing machines that can change between position that fell.Fuel tank comprises oily portion and the trapped fuel portion of connecing.Meet oily portion and can accumulate oil.When Sewing machines being converted to from erection position while falling position, all oil accumulating in meeting oily portion can be accommodated by trapped fuel portion.For example, in the time that Sewing machines is turned back to erection position from the position of falling or when mobile Sewing machines, exist oil vibration in fuel tank compared with problem large and that leak to the outside of fuel tank.

Summary of the invention

The object of the present invention is to provide a kind of Sewing machines and fuel tank that can prevent from fuel tank leakage of oil.

The Sewing machines of technical scheme 1 comprises can accommodate oily fuel tank, and described fuel tank comprises: periphery wall, and this periphery wall forms peristome, and this peristome passes through for the oil falling in described Sewing machines inside; Diapire, this diapire is relative with described peristome; Relatively wall, this relative wall be located at the inner side of described periphery wall and be located at described peristome and described diapire between leave on the position of described diapire, and be the wall portion relative with described diapire; And hole portion, described relative wall is run through in the direction from described peristome towards described diapire in this hole portion.

This fuel tank can be accommodated oil in the space between diapire and relative wall.The oil falling in Sewing machines inside arrives relative wall through peristome.Arrive relative wall oil afterwards through via portion, accumulate the space between diapire and relative wall.The vibration of Sewing machines is delivered to the oil that the space between diapire and relative wall exists.Because Sewing machines comprises relative wall, even if therefore oil vibration also can not leaked to outside from peristome.Therefore, sewing function prevents that oil from leaking from fuel tank.

Falling that the sewing function of technical scheme 2 was fallen in erection position and from described erection position rotated between position centered by trunnion axis, described hole portion is positioned at the position of leaving first end, and this first end is the end of a side that is positioned at described trunnion axis of described relative wall.At Sewing machines, in the time falling position, oil accumulates the side in trunnion axis in the space between diapire and relative wall.At Sewing machines, in the time falling position, oil accumulates in the below of hole portion.Therefore, oil can not leak to outside from hole portion.

In the Sewing machines of technical scheme 3, described hole portion is positioned at the position of leaving the second end, and this second end is the end of a side contrary with described first end of described relative wall.In the time that Sewing machines turns to erection position from the position of falling, accumulate in the oil of trunnion axis one side of fuel tank and move to the direction of leaving trunnion axis.Mobile oil easily splashes in a side of the second end of fuel tank.Because hole portion is positioned at the position of leaving the second end, the oil therefore splashing can not leak to outside from hole portion.

In the Sewing machines of technical scheme 4, the mask relative with described peristome of described relative wall has rake, this rake from described periphery wall towards described hole portion, tilt to the direction of described diapire.The oil falling in Sewing machines inside and arrive relative wall flows towards hole portion along rake.Rake can guide oil reliably towards hole portion.Therefore, oil accumulates the space between diapire and relative wall reliably through via portion.

The Sewing machines of technical scheme 5,6 comprises filter member, and this filter member is located at described hole portion, and removes the foreign matter of supporting by the arm oil the inside.Filter member is removed the foreign matter of supporting by the arm in the oil of wearing via portion.Therefore, can accumulate the space between diapire and relative wall by removing foreign matter oil afterwards.

In technical scheme 7 to 10, in any one Sewing machines, described peristome is relative with the part that has oil to fall of described diapire.Therefore, oil can not fall to the outside of fuel tank.

In technical scheme 11 to 18, any one Sewing machines comprises knee operating mechanism in bottom, and this knee operating mechanism drives the compress member of pressing processing cloth, and described fuel tank has recess, and this recess prevents that described fuel tank and described knee operating mechanism from disturbing.Fuel tank disturbs and falls in for fear of itself and knee operating mechanism.Therefore, knee operating mechanism does not need to be disposed at the below of fuel tank.In the lower space that can guarantee to configure the mechanisms such as control device of knee operating mechanism.

The use in sewing machine fuel tank of technical scheme 19 comprises: periphery wall, and this periphery wall forms peristome, and this peristome passes through for the oil falling in Sewing machines inside; Diapire, this diapire is relative with described peristome; Relatively wall, this relative wall be located at the inner side of described periphery wall and be located at described peristome and described diapire between leave on the position of described diapire, and be the wall portion relative with described diapire; And hole portion, described relative wall is run through in the direction from described peristome towards described diapire in this hole portion.

Accompanying drawing explanation

Fig. 1 is the front view of Sewing machines 2.

Fig. 2 is the longitudinal section of Sewing machines 2.

Fig. 3 is the stereogram of the outward appearance of Sewing machines 2 and the internal structure of base portion 21.

Fig. 4 is the front view of the driving mechanism of presser feet 48.

Fig. 5 is the stereogram of the driving mechanism of Sewing machines 2 inside.

Fig. 6 be the I-I line along Fig. 9 of Sewing machines 2 in the time of erection position dissect to apparent direction cutaway view.

Fig. 7 is that the Sewing machines 2 of Fig. 6 moves to the cutaway view while falling position.

Fig. 8 is the upward view of the base portion 21 in the time pulling down fuel tank 10 state.

Fig. 9 is the upward view of base portion 21.

Figure 10 is the stereogram of fuel tank 10.

Figure 11 is the stereogram of fuel tank 10.

Figure 12 is the top view of fuel tank 10.

Figure 13 be dissect along the II-II line of Figure 12 to apparent direction cutaway view.

Figure 14 is the major part enlarged drawing of the Sewing machines 2 of Fig. 7.

Figure 15 is the stereogram of the fuel tank 10 in the time that filter member 1134 state is installed.

The specific embodiment

With reference to accompanying drawing, embodiments of the present invention are described.The face side of Fig. 1, rear side, upside, downside, left side, right side are respectively front side, rear side, right side, left side, upside, the downsides of Sewing machines 2.The face side of Figure 10, rear side, lower right side, upper left side, lower-left side, upper right side are respectively upside, downside, right side, left side, front side, the rear sides of fuel tank 10.

With reference to Fig. 1～Fig. 5, Sewing machines 2 is described.Sewing machines 2 is disposed on sewing machine table 15.As shown in Figure 2, sewing machine table 15 has rectangular opening 151 in its substantial middle part.Sewing machines 2 is arranged at the inner side of rectangular opening 151.Sewing machines 2 comprises base portion 21, uprights 22, horn portion 23.Base portion 21 comprises fuel tank 10, trapped fuel portion 70 (with reference to Fig. 7), lower rotary shaft 36, bearing portion 50, rotating shuttle 46 etc. therein.Fuel tank 10 is accommodated the oil of lubricated use.Fuel tank 10 is arranged at the below of uprights 22.Sewing machines 2 was in the time falling position, and trapped fuel portion 70 stores (with reference to Figure 14) to the oil of the rear portion drippage along uprights 22 inside.Fuel tank 10, trapped fuel portion 70, lower rotary shaft 36, bearing portion 50, rotating shuttle 46 etc. will be explained below.

Uprights 22 is erect setting upward from the right side of base portion 21.Horn portion 23 extends to left from the top of uprights 22, and relative with base portion 21.The left part of horn portion 23 thereunder comprises presser feet 48, eedle 42.The left part of horn portion 23 comprises depression bar 44, spring 45, clamp driving mechanism 63, presser feet driving mechanism 64 etc. therein.Depression bar 44 extends along the vertical direction in horn portion 23, and the lower end of the lower end slave arm 23 of depression bar 44 is outstanding downwards.Presser feet 48 is arranged at the lower end of depression bar 44.Spring 45 is connected with the upper end of depression bar 44.The portion that grips 49 that is arranged at the upper end of horn portion 23 is fixed the upper end of spring 45.Spring 45 is to depression bar 44 application of force downwards.Presser feet driving mechanism 64 drives depression bar 44, so that presser feet 48 moves up and down.Clamp driving mechanism 63 drives tension disk (not shown), thereby regulates the tension force of upper thread.

With reference to Fig. 4, presser feet driving mechanism 64 is described.Presser feet driving mechanism 64 comprises handle member 91, axle 92, fastened component 93, presser foot lifting lever 94.Fastened component 93 is arranged at the above-below direction substantial middle part of depression bar 44.Fastened component 93 is shaft-like, rearward extends.Depression bar 44 is screwed the front side of fastened component 93.Handle member 91 is installed on the lower right side of fastened component 93.Handle member 91 is tortuous board members.Axle 92 is supported to the meanders of handle member 91 can swing.Presser foot lifting lever 94 is arranged at the rear side of handle member 91.Presser foot lifting lever 94 manually makes presser feet 48 move up and down for operator.

The upper end of the part of extending upward of handle member 91 is connected with the left end of connecting rod 95.Connecting rod 95 in the inside of horn portion 23 to right-hand extension.The right-hand member of connecting rod 95 is connected with the handle member 97 that is arranged at uprights 22 inside.Handle member 97 is tortuous board members.Axle 96 is supported to the meanders of handle member 97 can swing.Bar member 98 is connected with the right-hand member to right-hand extension of handle member 97.Bar member 98 extends to the below of fuel tank 10 by the cylinder hole 601 (with reference to Fig. 9) of fuel tank 10.Knee operating mechanism 99 is connected with the lower end of bar member 98.Knee operating mechanism 99 is connected with the operable knee control member of operator (not shown).Operator operates knee control member by knee portions of leg regions.Knee operating mechanism 99 rotates along with the operation of knee control member.Bar member 98 moves up and down along with the rotation of knee operating mechanism 99.Handle member 91,97, connecting rod 95 move along with moving up and down of bar member 98.The part of extending to left of handle member 91 moves towards below, and spring 45 is depressed fastened component 93 with the application of force.The depression bar 44 and the presser feet 48 that are connected with the fastened component 93 declining move downwards.Presser feet 48 after decline is pressed compress.The part of extending to left of handle member 91 moves towards top, and handle member 91 will push away on fastened component 93.The depression bar 44 and the presser feet 48 that are connected with the fastened component 93 rising are moved upward.

With reference to Fig. 5, the driving mechanism of Sewing machines 2 is described.Sewing machines 2 comprises rotating shaft 31, connection rotating shaft 33, lower rotary shaft 36.Upper rotating shaft 31 is extended along left and right directions in horn portion 23 (with reference to Fig. 2).Connection rotating shaft 33 extends along the vertical direction in uprights 22 (with reference to Fig. 2).Lower rotary shaft 36 extends along left and right directions in base portion 21 (with reference to Fig. 2).Motor of sewing machine (not shown) is arranged at the right-hand member of rotating shaft 31.Motor of sewing machine rotates rotating shaft 31.The left and right directions substantial middle part of the upper rotating shaft 31 of bearing portion 47 supporting.Bearing portion 47 is cylindrical.Bearing portion 47 can be introduced from being arranged at the hole of its front side the oil of lubricated use.Described later second supplies with road 82 is connected with the hole of being located at bearing portion 47 front sides.

The gear 32 of umbrella is arranged at the right side of rotating shaft 31 and bearing portion 47.Shank up-down mechanism 41 is arranged at the left end of rotating shaft 31.Shank up-down mechanism 41 supports shank 43.Shank 43 extends along the vertical direction in horn portion 23 (with reference to Fig. 2).Eedle 42 is arranged at the lower end of shank 43.Shank up-down mechanism 41 drives along with the rotation of upper 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 arranged at the upper end of connection rotating shaft 33.Gear 34 engages with gear 32.Connection rotating shaft 33 rotates along with the rotation of upper rotating shaft 31.The gear 35 of umbrella is arranged at the lower end of connection rotating shaft 33.The rotary driving force of upper rotating shaft 31 is delivered to lower rotary shaft 36 described later by connection rotating shaft 33.

The gear 37 of umbrella is arranged at the right-hand member of lower rotary shaft 36.Gear 37 engages with gear 35.Lower rotary shaft 36 rotates along with the rotation of connection rotating shaft 33.Rotating shuttle 46 (with reference to Fig. 3) is arranged at the left end of lower rotary shaft 36.Rotating shuttle 46 drives along with the rotation of lower rotary shaft 36, with the synchronously rotation that moves up and down of eedle 42.Bearing portion 50 is arranged at the right side of rotating shuttle 46.Bearing portion 50 supports lower rotary shaft 36.Bearing portion 50 is cylindrical.Lower rotary shaft 36 is through the hole of running through bearing portion 50 along left and right directions.Plunger displacement pump (not shown) is arranged at the inside of bearing portion 50.Plunger displacement pump is sucked and is contained in the oil of aftermentioned fuel tank 10 by the first supply road 81, and sends to the second supply road 82.Second supply with road 82 base portion 21 in from the machine frame of block bearing portion 50 to right-hand extension, in the upside of fuel tank 10 complications upward.Second supplies with road 82 extends upward in uprights 22 (with reference to Fig. 2), is connected with the hole of bearing portion 47 front sides.Upper rotating shaft 31 has the axis hole (not shown) being communicated with the hole of bearing portion 47.This axis hole is communicated with the cross-drilled hole (not shown) forming vertically in the inside of upper rotating shaft 31.Upper rotating shaft 31 has the hole being communicated with this cross-drilled hole near that is fixed with gear 32.The oil that plunger displacement pump is sent flow in bearing portion 47 by the second supply road 82, and this oil can be supplied to gear 32 by the axis hole, cross-drilled hole, near gear 32 holes that are formed at upper rotating shaft 31.The oil that is supplied to gear 32 can suppress gear 32 and produce heating with the friction of gear 34, thereby can prevent sintering phenomenon.

Fuel tank 10 is arranged at the below of gear 35,37.Fuel tank 10 is accommodated the oil of the lubricated use of supplying with to each driving mechanism of Sewing machines 2.When the oil droplet that is supplied to gear 32 by the second supply road 82, bearing portion 47 falls, the oil that meets oily portion 11 (aftermentioned) and catch drippage of fuel tank 10.Along with the rotation of

gear

32,34, oil becomes vaporific, and scatters towards periphery.The vaporific oil scattering is splashed in uprights 22.In the time being splashed to vaporific oil in uprights 22 and falling downwards, meet oily portion 11 and catch the oil falling.

With reference to Fig. 6, Fig. 7, the erection position (with reference to Fig. 6) to Sewing machines 2 and be converted to the position of falling (with reference to Fig. 7) from erection position and describe.Two place's linkages 27 are connected the rear portion of base portion 21 with the rear portion of rectangular opening 151.Linkage 27 comprises trunnion axis 271 and revolving member 272.Sewing machine table 15 has the hole 152 in the face of rectangular opening 151.Trunnion axis 271 is arranged in hole 152 along left and right directions.In other words, trunnion axis 271 is set in a side of the rearward end of base portion 21 parallel with horn portion 23.Sewing machine table 15 supports the end of the left and right directions of trunnion axis 271.One end of revolving member 272 is bending along the surrounding of trunnion axis 271.Revolving member 272 can rotation around trunnion axis 271.The other end of revolving member 272 is connected with the rear portion of base portion 21.Sewing machines 2 can be centered by trunnion axis 271 in erection position and fell and rotate between position.

As shown in Figure 6, Sewing machines 2 in the time of erection position, the upper surface of base portion 21 with the upper surface of sewing machine table 15 in identical height and position.On sewing machine table 15, square column 153 is erect the rear that is arranged on Sewing machines 2.As shown in Figure 7, square column 153 supports the Sewing machines 2 in the position of falling.Operator carries out maintenance work in the situation that falling position at Sewing machines 2.

With reference to Fig. 2, Fig. 3, Fig. 6～Figure 14, fuel tank 10 is described.The oil falling from the mechanism of uprights 22 inside drops to the fuel tank 10 of base portion 21.In base portion 21, the scope that oil may fall is that the oil of Fig. 8 falls portion 215.In Fig. 8, coating black part represents that oil falls portion 215.In Fig. 8, fuel tank 10 is not illustrated.

Fuel tank 10 is formed by translucent resin, is fixed on the base portion 21 of uprights 22 belows.Fuel tank 10 comprise diapire 102, periphery wall 101, first-phase to wall 113, second-phase to wall 114 etc.Periphery wall 101 is from the edge of diapire 102 to roughly vertical setting.First-phase is connected with periphery wall 101 respectively wall 114 wall 113, second-phase.Diapire 102 comprises the first diapire 1021, the second diapire 1022.The first diapire 1021 is formed at the fore-and-aft direction entirety of base portion 21, roughly rectangular shape.The second diapire 1022 is outstanding to left from the left side rear end part of the first diapire 1021.

Recess 1213 is located at the fore-and-aft direction substantial middle part of the first diapire 1021 left ends.Other parts of recess 1213 to the first diapire 1021 left ends are distolateral recessed to the right.Diapire recess 1212 is located at the rear side lower surface of the recess 1213 of the first diapire 1021.Diapire recess 1212 gets on from the rectangular shape of the lower surface of the first diapire 1021 ground is recessed upward.Not shown magnet is embedded in diapire recess 1212 from the outside of fuel tank 10.Magnet can be near diapire recess 1212 iron powder in the oil in adsorbed oil resettlement section 12 etc.The right side front end of the first diapire 1021, the shape that rear end is fillet.

The second diapire 1022 is the essentially rectangular shape extending along left and right directions.The right-hand member of the second diapire 1022 is connected with the rear left end of the first diapire 1021.Periphery wall 101 is connected with the outer peripheral edges of the first diapire 1021, the second diapire 1022.Periphery wall 101 is to roughly vertical setting.Periphery wall 101 has sidewall 1011～1016 etc.Sidewall 1011 is connected with the right-hand member of the first diapire 1021.Sidewall 1012 is connected with the front end of the first diapire 1021.Sidewall 1013 is connected with the left end of the first diapire 1021.Sidewall 1014 is connected with the rear end of the first diapire 1021, the rear end of the second diapire 1022.Sidewall 1015 is connected with the front end of the second diapire 1022.Sidewall 1016 is connected with the left end of the second diapire 1022.The height of

sidewall

1011,1012,1014 is roughly the same.The height of

sidewall

1013,1015,1016 is roughly the same, and is the height roughly 1/2nd of

sidewall

1011,1012,1014.Sidewall 1013 is shapes that the first diapire 1021 is extended to vertical, has recess 1213.The left end portion of sidewall 1012 is outstanding towards left to upper end from the pars intermedia of its short transverse.The part connecting with sidewall 1014 of sidewall 1016 is identical with the height of sidewall 1014.Sidewall 1016 more roughly the same with the height of sidewall 1015 than the part of the forward side of fore-and-aft direction central portion.

First-phase is located at the roughly pars intermedia of short transverse of

sidewall

1011,1012,1014 to wall 113.First-phase, to wall 113 and the first diapire 1021 almost parallels, is overlooked shape in the form of a substantially rectangular.First-phase is located between case peristome 103 (aftermentioned) and the first diapire 1021 to wall 113 and is left the position of the first diapire 1021.First-phase is relative with the first diapire 1021 in the inner side of periphery wall 101 to wall 113.Sidewall 1017 extends to vertical the left end of wall 113 from first-phase.The length of the fore-and-aft direction of the Length Ratio first-phase of the fore-and-aft direction of sidewall 1017 to wall 113 is short.The front and back end of sidewall 1017 is not connected with sidewall 1012,1014.First-phase is connected with the upper end of sidewall 1013 wall 113.

First-phase has first end 1136, the second end 1137, the first rake 1132, slot part 1133, recess 1135, basic courses department 112 to wall 113.First end 1136 is ends of trunnion axis 271 1 sides.The second end 1137 is ends of a side contrary with first end 1136.Accepting hole portion 1131 is located at than first-phase to the central forward side of the fore-and-aft direction of wall 113 and than left and right directions central authorities position on the right side.Accepting hole portion 1131 is positioned at the position of leaving periphery wall 101, first end 1136, the second end 1137.First-phase is run through along the vertical direction to wall 113 in accepting hole portion 1131.Square neck is oblique down for the side of the first rake 1132 from

sidewall

1012,1014 to accepting hole portion 1131.The first rake 1132 is directed to accepting hole portion 1131 by dropping to first-phase to the oil of wall 113 upper surfaces.Slot part 1133 around arranges along accepting hole portion 1131.Slot part 1133 is removed the foreign matter that moves to dust, line bits etc. in the oil of the first diapire 1021 through accepting hole portions 1131.Operator can utilize slot part 1133 that filter member 1134 (with reference to Figure 15) is installed.Filter member 1134 illustrates in variation described later again.

Recess 1135 is located at left and right two places of first-phase to wall 113 rear portions.Recess 1135 is the portions that dodge that the head for preventing the not shown screw of being located at base portion 21 contacts wall 113 with first-phase.Basic courses department 112 is located at the left side front of first-phase to wall 113.Basic courses department 112 is positioned at the left side of sidewall 1013, i.e. the top of recess 1213 forming portions.The cylindrical portion 60 of extending is upward erect and is arranged at basic courses department 112.Cylindrical portion 60 has cylinder hole 601.Cylinder hole 601 is holes of running through along the vertical direction cylindrical portion 60 inner sides.Bar member 98 runs through cylinder hole 601.The height of the height of cylindrical portion 60 and

sidewall

1011,1012,1014,1017 is roughly the same.Second-phase is located at the top of the second diapire 1022 to wall 114.Second-phase is connected wall 113 with sidewall 1014～1016, first-phase wall 114.Second-phase is heaved upward to the roughly front side half of wall 114.Second-phase is second rakes 1141 (with reference to Figure 13) to the roughly rear side half of wall 114.The second rake 1141 is more smooth, and its right-hand member is lower than left end.Second-phase is connected wall 113 with first-phase the right-hand member of wall 114.

Fuel tank 10 has oily resettlement section 12, meets oily portion 11.Oil resettlement section 12 is surrounded wall 114, sidewall 1011～1016 wall 113, second-phase by the first diapire 1021, the second diapire 1022, first-phase.Meeting oily portion 11 is surrounded wall 114,

sidewall

1011,1012,1014～1017 wall 113, second-phase by first-phase.Connect oily portion 11

use sidewalls

1011,1012,1014,1017 covering oil and fall portion 215 (with reference to Fig. 8).The upper end that connects oily portion 11

use sidewalls

1011,1012,1014,1017 forms case peristome 103.Meeting oily portion 11 catches from the oil of uprights 22 interior drippages by case peristome 103.The oil that is supplied to Sewing machines drive division is through the first rake 1132, accepting hole portion 1131 and accumulate in oily resettlement section 12.Oil is directed to accepting hole portion 1131 by the first rake 1132.Therefore, dropping to the oil that meets oily portion 11 can accumulate reliably in oily resettlement section 12.The sidewall 1012 that forms oily resettlement section 12 has front aperture 1211.Front aperture 1211 runs through sidewall 1012 in the part being connected with sidewall 1013.Sewing machines 2 is converted to the position of falling by operator, and the flexible pipe (not shown) of oil being supplied with to use is inserted into front aperture 1211 and supplies oil supply to fuel tank 10.

Fuel tank 10 has rake 1221, cylindrical portion 1223.Rake 1221 is set to sidewall 1015 from the right side front end of the second diapire 1022.Rake 1221 so that the second diapire 1022 upward the recessed mode getting on form.When Sewing machines 2 is converted to while falling position, rake 1221 can prevent that fuel tank 10 and knee operating mechanism 99 (with reference to Fig. 2) from disturbing.Knee operating mechanism 99 is connected with the knee control member of knee portions of leg regions operation with operator.Knee operating mechanism 99 comprises the trunnion axis rotating by the operation of knee control member, the drive rod 992 that is fixed on trunnion axis.Sewing machine table 15 can support the trunnion axis of knee operating mechanism 99 near below rectangular opening 151 rotationally.The bar member 98 of presser feet driving mechanism 64 runs through cylinder hole 601, puts on the drive rod 992 of knee operating mechanism 99.

Cylindrical portion 1223 is extended from sidewall 1016 to left.Be formed at the internal communication of the Yu You resettlement section, hole 12 of cylindrical portion 1223.Cylindrical portion 1223 and first is supplied with road 81 and is connected.Plunger displacement pump sucts the oil of 12 inside, oily resettlement section by the first supply road 81.

Fuel tank 10 has three place's screw fixed parts 61 (with reference to Figure 10).A screw fixed part 61 is located at the upper end of sidewall 1011.This screw fixed part 61 is from the rear portion along fore-and-aft direction central authorities of sidewall 1011 to right-hand outstanding.Two screw fixed parts 61 are located at the upper end of sidewall 1017.This screw fixed part 61 is outstanding to left from front portion, the rear portion of the fore-and-aft direction central authorities of sidewall 1017 respectively.Each screw fixed part 61 has the screw hole 611 of passing for the axial region of screw 62 (with reference to Fig. 9).Base portion 21 is being used hole 29 (with reference to Fig. 8) with screw with having screw on position corresponding to hole 611.Operator is inserted into the axial region of screw 62 from screw fixed part 61 belows screw and uses

hole

611,29, thereby makes fuel tank 10 be fixed on base portion 21 (with reference to Fig. 9).Operator, by pulling down screw 62, pulls down fuel tank 10 from base portion 21.

As mentioned above, in fuel tank 10, meet oily portion 11 and cover the downside of uprights 22.Meet oily portion 11 and catch the oil that is supplied to gear 32.Oil resettlement section 12 is caught and is accumulated in first-phase wall 113, second-phase the oil on wall 114 by accepting hole portion 1131.Therefore, fuel tank 10 can reclaim the oil that is supplied to gear 32 reliably.In explanation, the oil that accommodate oily resettlement section 12 is called oil 521 (with reference to Fig. 6) below.The vibration of Sewing machines 2 is delivered to interior the accommodated oil 521 in oily resettlement section 12.The first-phase of fuel tank 10 can prevent to wall 114 that to wall 113, second-phase the oil 521 of vibration from leaking to the outside of oily resettlement section 12.

Below, oil is described in the path of Sewing machines 2 inner loop.Oil resettlement section 12 accumulates oil in advance.Plunger displacement pump sucks the oil in oily resettlement section 12 by the first supply road 81, sends oil to the second supply road 82.Oil is lubricated

gear

32,34 etc., and passes the inside of uprights 22, falls downwards.Oil after falling is through being located at the case peristome 103 of fuel tank 10 of uprights 22 belows, arriving the first-phase that meets oily portion 11 to wall 113 etc.The oil that first-phase meets oily portion 11 to the first rake 1132 of wall 113 by arrival is directed into accepting hole portion 1131.Oil accumulates in oily resettlement section 12 through accepting hole portion 1131.Sewing machines 2 re-uses the oil accumulating in oily resettlement section 12 as the oil of lubricated use.Therefore, oil is in Sewing machines 2 inner loop.

With reference to Fig. 7, Figure 14, the trend that Sewing machines 2 is converted to the oil 521 while falling position from erection position describes.When Sewing machines 2 rearward turns to from erection position while falling position, oil 521 accumulates in the rear portion of oily resettlement section 12.The central shaft rotating is that trunnion axis 271 is positioned at Sewing machines 2 rear sides.Therefore, oil 521 accumulates the side in trunnion axis 271 in oily resettlement section 12.Accepting hole portion 1131 is positioned at the position of leaving first end 1136.First end 1136 is ends of trunnion axis 271 one sides of first-phase to wall 113.Therefore, oil 521 accumulates the below of the accepting hole portion 1131 to wall 113 in first-phase, can not leak the outside from accepting hole portion 1131 to oily resettlement section 12.

In the time that Sewing machines 2 rotates to erection position from the position of falling, accumulate in the oil 521 at 12 rear portions, oily resettlement section and forwards move.The oil 521 moving to easily splashes in the front portion of oily resettlement section 12.First-phase is located at the front portion of oily resettlement section 12 to wall 113.First-phase prevents that to wall 113 oil 521 splashing from leaking to the outside of oily resettlement section 12.Accepting hole portion 1131 is positioned at the position of leaving the second end 1137.The second end 1137 is ends of the front side of first-phase to wall 113.Therefore the oil 521, splashing can not leak the outside from accepting hole portion 1131 to oily resettlement section 12.

Rake 1221 is set to sidewall 1015 from the right side front end of the second diapire 1022.When Sewing machines 2 is converted to while falling position, rake 1221 can prevent that fuel tank 10 and knee operating mechanism 99 (with reference to Fig. 2) from disturbing.Therefore, knee operating mechanism 99 does not need to be disposed at the below of fuel tank 10, can below knee operating mechanism 99, guarantee to configure the space of the mechanisms such as control device.

With reference to Figure 14, describe accumulating oily state in trapped fuel portion 70.In the time that the position long period of falling representing at Figure 14 keeps Sewing machines 2, the oil after mechanism is lubricated moves to gravity direction.There is the rear portion of Sewing machines 2 at oily gravity direction.Therefore, oil is along the rear portion drippage of Sewing machines 2 inside.The oil of drippage accumulates in trapped fuel portion 70 through path 75.In Figure 14, accumulate in the oil of trapped fuel portion 70 and be called oil 76.In the time that Sewing machines 2 turns to erection position (with reference to Fig. 6) from the position of falling, accumulate in the oil 76 of trapped fuel portion 70 and drip from the end in trapped fuel portion 70 fronts.The case peristome 103 of fuel tank 10 is positioned at the below (being gravity direction) of trapped fuel portion 70.Therefore, the oil 76 after drippage drops to the oily portion 11 of connecing of fuel tank 10.Drop to the oil 76 that meets oily portion 11 and arrive oily resettlement section 12 through accepting hole portions 1131.Oil resettlement section 12 accumulates the oil 76 falling from trapped fuel portion 70.

As mentioned above, trapped fuel portion 70 accumulates oil 76 in the time falling position at Sewing machines 2.Therefore, at Sewing machines 2, in the time falling position, oil 76 can not leak the outside from the sidewall of fuel tank 10 1014 to Sewing machines 2.

Accepting hole portion 1131 is equivalent to hole of the present invention portion.Case peristome 103 is equivalent to peristome of the present invention.The first rake 1132 is equivalent to rake of the present invention.Rake 1221 is equivalent to recess of the present invention.

Filter member 1134 also can be located at accepting hole portion 1131.Below with reference to Figure 15, filter member 1134 is described.Filter member 1134 shown in Figure 15 is woven wires.Filter member 1134 is overlooked rounded.Filter member 1134 has the fixed part (not shown) with slot part 1133 (with reference to Figure 10) correspondingly-shaped.Filter member 1134 can be inserted into slot part 1133 by this fixed part and fix.Filter member 1134 is removed the foreign matter the oil through move to oily resettlement section 12 after accepting hole portion 1131 from meeting oily portion 11.Therefore, oily resettlement section 12 can accumulate the oil of having removed foreign matter.Filter member 1134 can be also for example resin.Filter member 1134 also can be fixed on the slot part around the front aperture 1211 that is for example formed on sidewall 1012.

Claims

1. a Sewing machines, comprises and can accommodate oily fuel tank (10), and it is characterized in that, described fuel tank comprises:

Periphery wall (101), this periphery wall forms peristome (103), and this peristome passes through for the oil falling in described Sewing machines inside;

Diapire (102), this diapire is relative with described peristome;

Relatively wall (113), this relative wall be located at the inner side of described periphery wall and be located at described peristome and described diapire between leave on the position of described diapire, and be the wall portion relative with described diapire; And

Hole portion (1131), described relative wall is run through in the direction from described peristome towards described diapire in this hole portion,

The described oil falling in described Sewing machines inside arrives described relative wall through described peristome, passes through afterwards described hole portion, accumulates the space between described diapire and described relative wall.

2. Sewing machines as claimed in claim 1, is characterized in that, what described sewing function was fallen in erection position and from described erection position fell rotates between position centered by trunnion axis (271),

Described hole portion is positioned at the position of leaving first end (1136), and this first end is the end of a side that is positioned at described trunnion axis of described relative wall.

3. Sewing machines as claimed in claim 2, is characterized in that, described hole portion is positioned at the position of leaving the second end (1137), and this second end is the end of a side contrary with described first end of described relative wall.

4. Sewing machines as claimed any one in claims 1 to 3, it is characterized in that, the mask relative with described peristome of described relative wall has rake (1132), this rake from described periphery wall towards described hole portion, tilt to the direction of described diapire.

5. Sewing machines as claimed any one in claims 1 to 3, is characterized in that, comprises filter member (1134), and this filter member is located at described hole portion, and removes the foreign matter of supporting by the arm oil the inside.

6. Sewing machines as claimed in claim 4, is characterized in that, comprises filter member (1134), and this filter member is located at described hole portion, and removes the foreign matter of supporting by the arm oil the inside.

7. Sewing machines as claimed any one in claims 1 to 3, is characterized in that, described peristome is relative with the part (215) that has oil to fall of described diapire.

8. Sewing machines as claimed in claim 4, is characterized in that, described peristome is relative with the part (215) that has oil to fall of described diapire.

9. Sewing machines as claimed in claim 5, is characterized in that, described peristome is relative with the part (215) that has oil to fall of described diapire.

10. Sewing machines as claimed in claim 6, is characterized in that, described peristome is relative with the part (215) that has oil to fall of described diapire.

11. Sewing machiness as claimed any one in claims 1 to 3, is characterized in that, described Sewing machines comprises knee operating mechanism (99) in bottom, and this knee operating mechanism drives the compress member (48) of pressing processing cloth,

Described fuel tank has recess (1221), and this recess prevents that described fuel tank and described knee operating mechanism from disturbing.

12. Sewing machiness as claimed in claim 4, is characterized in that, described Sewing machines comprises knee operating mechanism (99) in bottom, and this knee operating mechanism drives the compress member (48) of pressing processing cloth,

13. Sewing machiness as claimed in claim 5, is characterized in that, described Sewing machines comprises knee operating mechanism (99) in bottom, and this knee operating mechanism drives the compress member (48) of pressing processing cloth,

14. Sewing machiness as claimed in claim 6, is characterized in that, described Sewing machines comprises knee operating mechanism (99) in bottom, and this knee operating mechanism drives the compress member (48) of pressing processing cloth,

15. Sewing machiness as claimed in claim 7, is characterized in that, described Sewing machines comprises knee operating mechanism (99) in bottom, and this knee operating mechanism drives the compress member (48) of pressing processing cloth,

16. Sewing machiness as claimed in claim 8, is characterized in that, described Sewing machines comprises knee operating mechanism (99) in bottom, and this knee operating mechanism drives the compress member (48) of pressing processing cloth,

17. Sewing machiness as claimed in claim 9, is characterized in that, described Sewing machines comprises knee operating mechanism (99) in bottom, and this knee operating mechanism drives the compress member (48) of pressing processing cloth,

18. Sewing machiness as claimed in claim 10, is characterized in that, described Sewing machines comprises knee operating mechanism (99) in bottom, and this knee operating mechanism drives the compress member (48) of pressing processing cloth,

19. 1 kinds of use in sewing machine fuel tanks, is characterized in that, comprising:

Periphery wall (101), this periphery wall forms peristome (103), and this peristome passes through for the oil falling in Sewing machines inside;

Diapire (102), this diapire is relative with described peristome;