CN202786727U

CN202786727U - Oil tank for sewing machine

Info

Publication number: CN202786727U
Application number: CN 201120579968
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: 2013-03-13
Anticipated expiration: 2021-12-26
Also published as: JP2012135527A; CN102587051A; CN102587051B

Abstract

The utility model relates to a sewing machine capable of preventing oil leakage from an oil tank and an oil tank. The oil tank is fixed at a base part of the sew machine. The oil tank is divided into upper and lower two layers of an oil receiving part and an oil accommodating part. The oil receiving part receives oil falling from a column part of the sewing machine. The oil accommodating part accommodates oil for lubrication. The oil tank comprises an outer circumferential wall, a bottom wall, a first opposite wall, and an accommodating hole part. A box opening part is formed at the outer circumferential wall. The bottom wall opposite to the box opening part is disposed at the bottom of the oil tank. The first opposite wall is disposed at the inner side of the outer circumferential wall and a position away from the bottom wall between the box opening part and the bottom wall. The accommodating hole part is disposed on the first opposite wall.

Description

The use in sewing machine fuel tank

Technical field

The utility model relates to a kind of use in sewing machine fuel tank of accommodating oil.

Background technology

The Sewing machines that comprises fuel tank is known.Fuel tank is accommodated the oil be used to the lubricated usefulness of the mechanism that supplies to Sewing machines.For example No. 4135136 communique of Japanese Patent Laid disclosed at erection position and the Sewing machines that fell and can change between the position.Fuel tank comprises oily section and the trapped fuel section of connecing.Meet oily section and can accumulate oil.When Sewing machines being converted to from the erection position when falling the position, all oil that accumulates in meeting oily section can be accommodated by trapped fuel section.For example when Sewing machines is turned back to the erection position from the position of falling or during mobile Sewing machines, there is the large and problem that leak to the outside of fuel tank of oil vibration in the fuel tank.

The utility model content

The purpose of this utility model is to provide a kind of use in sewing machine fuel tank that can prevent from the fuel tank leakage of oil.

The use in sewing machine fuel tank of technical scheme 1 comprises diapire and erects the periphery wall that arranges from the periphery of this diapire, described fuel tank is accommodated oil by peristome, this oil is the oil that falls in the inside of the Sewing machines that can rotate centered by trunnion axis, described diapire comprises the first diapire and the second diapire, described the first diapire forms the essentially rectangular shape, described the second diapire is outstanding abreast from end and the described trunnion axis of described trunnion axis one side of described the first diapire, described periphery wall comprises the first side wall and the second sidewall, described the first side wall is connected with described the first diapire, described the second sidewall is connected with described the second diapire, described fuel tank comprise first-phase to wall and second-phase to wall, described first-phase is to the inboard of wall at described the first side wall, between described peristome and described the first diapire, leave on the position of described the first diapire relative with this first diapire, described second-phase to wall above described the second diapire with described the second sidewall be connected first-phase wall be connected, described first-phase is provided with hole section to wall, described first-phase is run through to wall in the direction from described peristome towards described diapire in this hole section, first end and the second end leave in described hole section, described first end be described first-phase to the end of described trunnion axis one side of wall, described the second end is that described first-phase is to the end of a side opposite with described first end of wall.

Fuel tank can be accommodated oil in the space between diapire and the relative wall.The oil that falls in Sewing machines inside by peristome arrive first-phase to wall, second-phase to wall.Arriving first-phase accumulates through via portion in the space between diapire and the relative wall the oil after the wall wall, second-phase.When rotating Sewing machines it being fallen, in the space between diapire and the relative wall, oil accumulates the side in trunnion axis.When falling Sewing machines, oil accumulates in the below of hole section.Therefore, oil can not leak to the outside from hole section.

In the use in sewing machine fuel tank of technical scheme 2, described first-phase has the first rake to the mask relative with described peristome of wall, this first rake from described periphery wall towards described hole section, tilt to the direction of described the first diapire, described second-phase has the second rake to the upper surface of wall, and this second rake is along with leaving described diapire from the end that wall connected with described first-phase towards the other end of a side opposite with this end.The oil that falls in Sewing machines inside and arrive relative wall flows to hole section along rake.Rake guides oil reliably to hole section.Therefore, oil accumulates in the space between diapire and the relative wall through via portion reliably.

In the use in sewing machine fuel tank of technical scheme 3, the described the first side wall that is positioned at a side opposite with described trunnion axis is formed with the through hole that a side of the relative described the first side wall of Xiang Yuqi runs through, can be by this through hole for oil supply.Fuel tank forms through hole at the periphery wall of a side opposite with the trunnion axis of Sewing machines.Therefore, when fell Sewing machines and from through hole to fuel tank when the oil supply, can not accumulate oil under the situation of leakage of oil.

In the use in sewing machine fuel tank of technical scheme 4, described second-phase to wall in, a part side opposite with described trunnion axis, that be connected with described the second sidewall is heaved upward.Therefore, fuel tank can enlarge second-phase to the space between wall and the second diapire, thereby can accumulate more oil.

In the use in sewing machine fuel tank of technical scheme 5, the described the first side wall of described the second sidewall one side is formed with the recessed recess of a side of the relative described the first side wall of Xiang Yuqi, described fuel tank comprises recess upper wall, cylindrical portion, cylinder hole, described recess upper wall and described first-phase connect wall and to described first-phase the identical direction of wall being extended, and expose from described recess, described cylindrical portion is erect from described recess upper wall and is arranged, and described cylinder hole runs through the inboard of described cylindrical portion along the vertical direction.Cylinder hole can pass bar, and the mechanism that this pole pair moves up and down the compress member of Sewing machines drives.Recess prevents that this bar is by the space between diapire and the relative wall.The oil that therefore, can prevent from accumulating in the space between diapire and the relative wall is attached to described bar.

In the use in sewing machine fuel tank of technical scheme 6, described first-phase is provided with slot part to wall, and this slot part forms on every side along described hole section.Slot part is removed the foreign matter of supporting by the arm in the oil that flows to hole section.Therefore, can in the space between diapire and the relative wall, accumulate the oil of removing foreign matter.

The use in sewing machine fuel tank of technical scheme 7 is provided with filtration members, and this filtration members is fixed in described slot part, and removes the foreign matter of supporting by the arm the oil the inside.Filtration members is removed the foreign matter of supporting by the arm in the oil of wearing via portion.Therefore, can in the space between diapire and the relative wall, accumulate the oil of removing foreign matter.

The use in sewing machine fuel tank of technical scheme 8 comprises the diapire recess, and this diapire recess gets on from the lower surface of described the first diapire is recessed upward.Fuel tank can be at the chimeric magnet of diapire recess.When chimeric when magnet is arranged, near iron powder that fuel tank can utilize magnet to adsorb the diapire recess to be contained in the oil of accommodating etc.

Description of drawings

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 internal structure of the outward appearance of Sewing machines 2 and pedestal part 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 when being in the erection position dissect to the apparent direction cutaway view.

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

Fig. 8 is the upward view that is in the pedestal part 21 when pulling down fuel tank 10 state.

Fig. 9 is the upward view of pedestal part 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 the II-II line along Figure 12 dissect to the 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 that is in the fuel tank 10 when filtration members 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 the sewing machine table 15.As shown in Figure 2, sewing machine table 15 partly has rectangular opening 151 in its substantial middle.Sewing machines 2 is arranged at the inboard of rectangular opening 151.Sewing machines 2 comprises pedestal part 21, uprights 22, horn section 23.Pedestal part 21 within it section comprises fuel tank 10, trapped fuel section 70 (with reference to Fig. 7), lower rotary shaft 36, bearing portion 50, rotating shuttle 46 etc.Fuel tank 10 is accommodated the oil of lubricated usefulness.Fuel tank 10 is arranged at the below of uprights 22.Sewing machines 2 was in when falling the position, and 70 pairs of oil along the rear portion drippage of uprights 22 inside of trapped fuel section are stored (with reference to Figure 14).Fuel tank 10, trapped fuel section 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 pedestal part 21.Horn section 23 extends to left from the top of uprights 22, and relative with pedestal part 21.The left part of horn section 23 thereunder comprises presser feet 48, eedle 42.The left part of horn section 23 within it section comprises depression bar 44, spring 45, clamp driving mechanism 63, presser feet driving mechanism 64 etc.Depression bar 44 extends in horn section 23 along the vertical direction, 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 upper end of 49 pairs of springs 45 of the section that grips that is arranged at the upper end of horn section 23 is fixed.45 pairs of depression bars 44 of spring are the 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 the 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 section 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).The operator operates the knee control member with 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 the below, and then spring 45 is depressed fastened component 93 with the application of force.The depression bar 44 that is connected with the fastened component 93 that descends and presser feet 48 are mobile downwards.Presser feet 48 after the decline is pressed compress.The part of extending to left of handle member 91 moves towards the top, and then handle member 91 will push away on the fastened component 93.The depression bar 44 and the presser feet 48 that are connected with the fastened component 93 that rises 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 section 23 (with reference to Fig. 2).Connection rotating shaft 33 extends in uprights 22 (with reference to Fig. 2) along the vertical direction.Lower rotary shaft 36 extends along left and right directions in pedestal part 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 makes rotating shaft 31 rotations.The left and right directions substantial middle part of the upper rotating shaft 31 of bearing portion 47 supportings.Bearing portion 47 is cylindrical.Bearing portion 47 can be introduced from the hole that is arranged at its front side the oil of lubricated usefulness.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 supporting shanks 43.Shank 43 extends in horn section 23 (with reference to Fig. 2) along the vertical direction.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 and gear 32 engagements.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.Connection rotating shaft 33 is delivered to lower rotary shaft 36 described later with the rotary driving force of upper rotating shaft 31.

The gear 37 of umbrella is arranged at the right-hand member of lower rotary shaft 36.Gear 37 and gear 35 engagements.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 supporting lower rotary shafts 36.Bearing portion 50 is cylindrical.Lower rotary shaft 36 passes 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 supplied with road 81 by first and is sucked the oil that is contained in aftermentioned fuel tank 10, and supplies with road 82 to second and send.Second supply with road 82 pedestal part 21 in from the machine frame of block bearing section 50 to right-hand extension, in the upside of fuel tank 10 complications upward.Second supplies with road 82 extends in uprights 22 (with reference to Fig. 2) upward, is connected with the hole of bearing portion 47 front sides.Upper rotating shaft 31 has the axis hole (not shown) that is communicated with the hole of bearing portion 47.This axis hole is communicated with the cross-drilled hole (not shown) that inside in upper rotating shaft 31 forms vertically.Upper rotating shaft 31 be fixed with gear 32 near have the hole that is communicated with this cross-drilled hole.The oil that plunger displacement pump is sent is supplied with road 82 by second and is flow in the bearing portion 47, and this oil can supply to gear 32 by axis hole, cross-drilled hole, near gear 32 holes that are formed at upper rotating shaft 31.The oil that supplies to gear 32 can suppress gear 32 and generate heat with the friction generation of gear 34, thereby can prevent sintering phenomenon.

Fuel tank 10 is arranged at

gear

35,37 below.Fuel tank 10 is accommodated to the oil of the lubricated usefulness of each driving mechanism supply of Sewing machines 2.When supplying with oil droplet that road 82, bearing portion 47 supply to gear 32 and fall by second, fuel tank 10 connect the oil that oily section 11 (aftermentioned) catches drippage.Along with

gear

32,34 rotation, oil becomes vaporific, and scatters towards periphery.The vaporific oil that scatters is splashed in the uprights 22.When the vaporific oil in being splashed to uprights 22 falls downwards, meet oily section 11 and catch the oil that falls.

With reference to Fig. 6, Fig. 7, to the erection position (with reference to Fig. 6) of Sewing machines 2 and be converted to the position of falling (with reference to Fig. 7) from the erection position and describe.Two place's linkages 27 are connected the rear portion of pedestal part 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 the hole 152 along left and right directions.In other words, trunnion axis 271 is set in a side of the rearward end of pedestal part 21 parallel with horn section 23.The end of the left and right directions of sewing machine table 15 supporting trunnion axis 271.One end of revolving member 272 is along the bent around of trunnion axis 271.Revolving member 272 can rotate around trunnion axis 271.The other end of revolving member 272 is connected with the rear portion of pedestal part 21.Sewing machines 2 can be centered by trunnion axis 271 in the erection position and fell and rotate between the position.

As shown in Figure 6, when Sewing machines 2 was in the erection position, the upper surface of pedestal part 21 was in identical height and position with the upper surface of sewing machine table 15.On sewing machine table 15, square column 153 is erect the rear that is arranged on Sewing machines 2.As shown in Figure 7,153 pairs of the square columns Sewing machines 2 that is in the position of falling supports.The operator is at Sewing machines 2 in the situation of the position of falling and carries out maintenance work.

With reference to Fig. 2, Fig. 3, Fig. 6～Figure 14, fuel tank 10 is described.The oil that falls from the mechanism of uprights 22 inside drops to 10 li of the fuel tanks of pedestal part 21.In pedestal part 21, the scope that oil may fall is that the oil of Fig. 8 falls section 215.In Fig. 8, grid lines represents that partly oil falls section 215.In Fig. 8, fuel tank 10 is not illustrated.

Fuel tank 10 is formed by translucent resin, is fixed in the pedestal part 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 erect from the edge of diapire 102 to vertical roughly.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 integral body of pedestal part 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 diapires 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 the adsorbed oil resettlement section 12 etc.The shape that the right side front end of the first diapire 1021, rear end are fillet.

The second diapire 1022 is the essentially rectangular shape that extends 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.

Sidewall

1011,1012,1014 height are roughly the

same.Sidewall

1013,1015,1016 height are roughly the same, and are

sidewall

1011,1012,1014 height roughly 1/2nd.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 the upper end from the pars intermedia of its short transverse.Height with parts sidewall 1014 connections and sidewall 1014 sidewall 1016 is identical.The part than the forward side of fore-and-aft direction central portion of sidewall 1016 is roughly the same with the height of sidewall 1015.

First-phase is located at roughly pars intermedia of

sidewall

1011,1012,1014 short transverse to wall 113.First-phase is overlooked in the form of a substantially rectangular shape to wall 113 and the first diapire 1021 almost parallels.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 inboard of periphery wall 101 to wall 113.Sidewall 1017 extends to vertical from the left end of first-phase to wall 113.The Length Ratio first-phase of the fore-and-aft direction of sidewall 1017 is short to the length of the fore-and-aft direction of wall 113.The front and back end of sidewall 1017 is not connected with sidewall 1012,1014.First-phase is connected the upper end of wall 113 with sidewall 1013.

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 opposite with first end 1136.Accepting hole section 1131 is located at than first-phase to the fore-and-aft direction forward side of central authorities of wall 113 and than left and right directions central authorities position on the right side.Accepting hole section 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 section 1131.Square neck is oblique down to a side of accepting hole section 1131 from

sidewall

1012,1014 for the first rake 1132.The first rake 1132 will drop to first-phase the oil of wall 113 upper surfaces will be directed to accepting hole section 1131.Slot part 1133 arranges around accepting hole section 1131.Slot part 1133 is removed the foreign matter that moves to dust in the oil of the first diapire 1021, line bits etc. through accepting hole sections 1131.The operator can utilize slot part 1133 that filtration members 1134 (with reference to Figure 15) is installed.Filtration members 1134 is again explanation in variation described later.

Recess 1135 be located at first-phase to wall 113 rear portions about two places.Recess 1135 is the sections that dodge that wall 113 contacted be used to the head of the not shown screw that prevents from being located at pedestal part 21 and first-phase.Basic courses department 112 is located at first-phase to the place ahead, left side of 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 inboards.Bar member 98 runs through cylinder hole 601.The height of cylindrical portion 60 and

sidewall

1011,1012,1014,1017 height are 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.Half heaves the second-phase that is connected with sidewall 1015 upward to the roughly front side of wall 114.Half is the second rake 1141 (with reference to Figure 13) to second-phase to the roughly rear side 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 section 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 section 11 is surrounded wall 114,

sidewall

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

usefulness sidewalls

1011,1012,1014,1017 covers oil and falls section 215 (with reference to Fig. 8).Connect oily section 11

usefulness sidewalls

1011,1012,1014,1017 upper end forms case peristome 103.Meeting oily section 11 catches from the oil of uprights 22 interior drippages by case peristome 103.The oil that supplies to the Sewing machines drive division is through the first rake 1132, accepting hole section 1131 and accumulate in oily resettlement section 12.The first rake 1132 is directed to accepting hole section 1131 with oil.Therefore, dropping to the oil that meets oily section 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 that is connected with sidewall 1013.The operator is converted to the position of falling with Sewing machines 2, and the flexible pipe (not shown) of oil being supplied with usefulness 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 on the 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 that gets on form.When Sewing machines 2 is converted to when falling the 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 the operator.Knee operating mechanism 99 comprises the trunnion axis that rotates by the operation of knee control member, the drive rod 992 that is fixed in trunnion axis.Sewing machine table 15 can support the trunnion axis of knee operating mechanism 99 near below the 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 hole and the oily resettlement section 12 of cylindrical portion 1223.Cylindrical portion 1223 and first is supplied with road 81 and is connected.Plunger displacement pump is supplied with the oil that road 81 sucts 12 inside, oily resettlement section by first.

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 given prominence to right-hand from the rear portion along fore-and-aft direction central authorities of sidewall 1011.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 that the axial region for screw 62 (with reference to Fig. 9) passes.Pedestal part 21 has screw with hole 29 (with reference to Fig. 8) with screw with position corresponding to hole 611.The operator is inserted into screw from screw fixed part 61 belows with the axial region of screw 62 and uses

hole

611,29, thereby makes fuel tank 10 be fixed in pedestal part 21 (with reference to Fig. 9).The operator pulls down fuel tank 10 by pulling down screw 62 from pedestal part 21.

As mentioned above, in fuel tank 10, connect the downside that oily section 11 covers uprights 22.Meet oily section 11 and catch the oil that supplies to gear 32.Oil resettlement section 12 is caught by accepting hole section 1131 and is accumulated in first-phase wall 113, second-phase the oil on the wall 114.Therefore, fuel tank 10 can reclaim the oil that supplies to gear 32 reliably.In the 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 the oily resettlement section 12 interior oil of accommodating 521.The first-phase of fuel tank 10 can prevent to wall 114 that to wall 113, second-phase the oil 521 that vibrates from leaking to the outside of oily resettlement section 12.

Below, the path of oil in Sewing machines 2 inner loop described.Oil resettlement section 12 accumulates oil in advance.Plunger displacement pump is supplied with road 82 to second and is sent oil by the first oil of supplying with in the oily resettlement section 12 of 81 suctions, road.Oil is lubricated

gear

32,34 etc., and passes the inside of uprights 22, falls downwards.Oil after falling is through the case peristome 103 of the fuel tank 10 of being located at uprights 22 belows, arrives the first-phase that meets oily section 11 to wall 113 etc.First-phase is directed into accepting hole section 1131 to the first rake 1132 of wall 113 with the oil that arrival meets oily section 11.Oil accumulates in oily resettlement section 12 through accepting hole section 1131.Sewing machines 2 will accumulate in the oil of oily resettlement section 12 and re-use as the oil that lubricates usefulness.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 when falling the position from the erection position describes.When Sewing machines 2 rearward turns to from the erection position when falling the position, oil 521 accumulates in the rear portion of oily resettlement section 12.The central shaft that rotates is that trunnion axis 271 is positioned at Sewing machines 2 rear sides.Therefore, oil 521 sides that in oily resettlement section 12, accumulate in trunnion axis 271.Accepting hole section 1131 is positioned at the position of leaving first end 1136.First end 1136 is that first-phase is to the end of trunnion axis 271 1 sides of wall 113.Therefore, oil 521 accumulates in the below of first-phase to the accepting hole section 1131 of wall 113, can not leak the outside from accepting hole section 1131 to oily resettlement section 12.

When Sewing machines 2 rotates to the erection position from the position of falling, accumulate in the oil 521 at 12 rear portions, oily resettlement section forwards mobile.The oil 521 that moves to splashes easily 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 that splashes from leaking to the outside of oily resettlement section 12.Accepting hole section 1131 is positioned at the position of leaving the second end 1137.The second end 1137 is that first-phase is to the end of the front side of wall 113.Therefore, the oil 521 that splashes can not leak the outside from accepting hole section 1131 to oily resettlement section 12.

Rake 1221 is set on the sidewall 1015 from the right side front end of the second diapire 1022.When Sewing machines 2 is converted to when falling the 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 guarantee to dispose the space of the mechanisms such as control device below knee operating mechanism 99.

With reference to Figure 14, the state that accumulates oil in trapped fuel section 70 is described.When the position long period of falling that represents at Figure 14 kept Sewing machines 2, the oil after mechanism is lubricated moved to gravity direction.The rear portion that Sewing machines 2 is arranged at the gravity direction of oil.Therefore, oil is along the rear portion drippage of Sewing machines 2 inside.The oil of drippage accumulates in trapped fuel section 70 through path 75.In Figure 14, accumulate in the oil of trapped fuel section 70 be called oil 76.When 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 section 70 and drip from the end in trapped fuel section 70 the place aheads.The case peristome 103 of fuel tank 10 is positioned at the below (being gravity direction) of trapped fuel section 70.Therefore, the oil behind the drippage 76 drops to the oily section 11 of connecing of fuel tank 10.Drop to the oil 76 that meets oily section 11 and arrive oily resettlement section 12 through accepting hole section 1131.Oil resettlement section 12 accumulates the oil 76 that falls from trapped fuel section 70.

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

Sidewall 1011～1014 is equivalent to the first side wall of the present utility model.Sidewall 1014～1016 is equivalent to the second sidewall of the present utility model.Accepting hole section 1131 is equivalent to hole of the present utility model section.Case peristome 103 is equivalent to peristome of the present utility model.Front aperture 1211 is equivalent to through hole of the present utility model.

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

Claims

1. use in sewing machine fuel tank, comprise diapire (102) and erect the periphery wall (101) that arranges from the periphery of this diapire (102), described fuel tank is accommodated oil by peristome (103), this oil is the oil that falls in the inside of the Sewing machines (2) that can rotate centered by trunnion axis (271), it is characterized in that

Described diapire comprises the first diapire (1021) and the second diapire (1022), and described the first diapire forms the essentially rectangular shape, and described the second diapire is outstanding abreast from end and the described trunnion axis of described trunnion axis one side of described the first diapire,

Described periphery wall comprises the first side wall (1011～1014) and the second sidewall (1014～1016), and described the first side wall is connected with described the first diapire, and described the second sidewall is connected with described the second diapire,

Described fuel tank comprise first-phase to wall (113) and second-phase to wall (114), described first-phase is to the inboard of wall at described the first side wall, between described peristome and described the first diapire, leave on the position of described the first diapire relative with this first diapire, described second-phase to wall above described the second diapire with described the second sidewall be connected first-phase wall be connected

Described first-phase is provided with hole section (1131) to wall, and described first-phase is run through to wall in the direction from described peristome towards described diapire in this hole section,

First end (1136) and the second end (1137) leave in described hole section, described first end be described first-phase to the end of described trunnion axis one side of wall, described the second end is that described first-phase is to the end of a side opposite with described first end of wall.

2. use in sewing machine fuel tank as claimed in claim 1, it is characterized in that, described first-phase has the first rake (1132) to the mask relative with described peristome of wall, this first rake from described periphery wall towards described hole section, tilt to the direction of described the first diapire

Described second-phase has the second rake (1141) to the upper surface of wall, and this second rake is along with leaving described diapire from the end that wall connected with described first-phase towards the other end of a side opposite with this end.

3. use in sewing machine fuel tank as claimed in claim 2, it is characterized in that, the through hole (1211) that the side of the relative described the first side wall (1014) of Xiang Yuqi of being formed with the described the first side wall (1012) that is positioned at a side opposite with described trunnion axis runs through can be by this through hole for oil supply.

4. use in sewing machine fuel tank as claimed in claim 3 is characterized in that, described second-phase to wall in, a part side opposite with described trunnion axis, that be connected with described the second sidewall (1015) is heaved upward.

5. use in sewing machine fuel tank as claimed in claim 4 is characterized in that, the described the first side wall (1013) of described the second sidewall one side is formed with the recessed recess (1213) of a side of the relative described the first side wall (1011) of Xiang Yuqi,

Described fuel tank comprises recess upper wall (112), cylindrical portion (60), cylinder hole (601), described recess upper wall and described first-phase connect wall and to described first-phase the identical direction of wall being extended, and expose from described recess, described cylindrical portion is erect from described recess upper wall and is arranged, and described cylinder hole runs through the inboard of described cylindrical portion along the vertical direction.

6. use in sewing machine fuel tank as claimed in claim 5 is characterized in that, described first-phase is provided with slot part (1133) to wall, and this slot part forms on every side along described hole section.

7. use in sewing machine fuel tank as claimed in claim 6 is characterized in that, is provided with filtration members (1134), and this filtration members is fixed in described slot part, and removes the foreign matter of supporting by the arm the oil the inside.

8. use in sewing machine fuel tank as claimed in claim 7 is characterized in that, comprises diapire recess (1212), and this diapire recess gets on from the lower surface of described the first diapire is recessed upward.