CN102560921B - Sewing machine and sewing machine table - Google Patents
Sewing machine and sewing machine table Download PDFInfo
- Publication number
- CN102560921B CN102560921B CN201110308265.4A CN201110308265A CN102560921B CN 102560921 B CN102560921 B CN 102560921B CN 201110308265 A CN201110308265 A CN 201110308265A CN 102560921 B CN102560921 B CN 102560921B
- Authority
- CN
- China
- Prior art keywords
- sewing machine
- machine table
- lower cover
- heating part
- cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
The present invention relates to a sewing machine with a ventilation channel, the ventilation channel enables the upper portion and the lower portion of the sewing machine to communicate with each other. The ventilation channel is configured at the periphery of heating parts mounted on a lower cover, and the heating part heats the peripheral air. The air rises and passes through the ventilation channel to escape over the sewing machine table. The heating parts can be cooled through contacting with the air passing through the ventilation channel. The heating of the heating parts does not stop below the sewing machine table. Operators can perform working under the condition of not being influenced by the heating of the heating parts.
Description
Technical field
The present invention relates to a kind of bottom by sewing machine main body outstanding below sewing machine table and cover with lower cover, and Sewing machines and the sewing machine table of heating part are installed at this lower cover.
Background technology
Sewing machines comprises the sewing machine main body being arranged on sewing machine table.Sewing machine main body comprises base, column, horn.Sewing machine table has peristome.Sewing machine main body is to be arranged on sewing machine table by the mode of base occlusion of openings portion.Column stands vertically on base.Horn extends abreast with the upper surface of base from the upper end of column.Horn supports eedle, presser feet at its cephalic par.Presser feet drops on base and presses processing cloth.Eedle rises, declines, and makes processing cloth with feed mechanism, the shuttle mechanism interaction of being located at base inside.
The Sewing machines that Japanese Laid-Open Patent Publication is recorded for 2000 No. 388 comprises lower cover.Lower cover is installed the circuit substrate that drives sewing machine main body to use at its lower surface.The installation portion of circuit substrate is controlled case and bag and is enclosed.Control cabinet has passage.Passage is arranged at the different position of above-below direction of control cabinet sidewall.
The circuit component that is disposed at circuit substrate is included in and in action, produces hot heating part.Control cabinet produces free convection by the passage of upper and lower in control cabinet.Heating part in control cabinet contacts with air mobile in control cabinet and is cooling under the effect of free convection.Air enters from the passage of bottom, from the passage on top, goes out.
Control cabinet covers the bottom of lower cover.Lower cover is positioned at the below of sewing machine table.The air contacting with heating part enters in control cabinet below sewing machine table, towards the below of sewing machine table, goes out.Although heating part contacts with the air of sewing machine table below repeatedly, air cannot abundant cooling heating part.
The heat that heating part sends is stuck in the below of sewing machine table.Heating part cannot normally move because of the hot impact of stagnating, thereby controls and have problems in the driving of Sewing machines.
Summary of the invention
The object of the invention is to being installed on the heating part of lower cover of sewing machine table below fully coolingly, and prevent the hot stagnation of sewing machine table below.
The Sewing machines of technical scheme 1 comprises: sewing machine table, and this sewing machine table has peristome;
Sewing machine main body, this sewing machine main body is arranged on described sewing machine table to stop up the mode of described peristome; And lower cover, this lower cover will cover from the bottom of the outstanding described sewing machine main body of described peristome, described lower cover is provided with heating part, the side that described sewing machine table is provided with described heating part at described lower cover has ventilation road, and this ventilation road is communicated with the upper and lower of described sewing machine table.
Sewing machines has the ventilation road that the upper and lower of sewing machine table is communicated with.Ventilation road is arranged near the heating part of installing at lower cover.The evolution of heat in action of heating part, the heat sending heats ambient air.Air rises and passes ventilation road and deviate to sewing machine table top.Heating part passes ventilation road with below from sewing machine table towards top and mobile air contacts.Because air mobile makes to generate heat dissipation of heat that part sends to sewing machine table top, the part that therefore generates heat can pass through successively to contact with new air and fully cooling.The heat that heating part sends is deviate to sewing machine table top, thereby can not be stuck in the below of sewing machine table.
In the Sewing machines of technical scheme 2, cut away a part for described peristome periphery to form on described ventilation road.
Sewing machines has notch part at the periphery of the peristome of sewing machine table.Ventilation road is formed between the sewing machine main body and notch part of occlusion of openings portion.Heating part is installed on the lower cover that the bottom from the outstanding described sewing machine main body of peristome is covered.Ventilation road can be formed near heating part simply.
In the Sewing machines of technical scheme 3,4, described lower cover has the installation portion that described sewing machine main body is driven to the circuit substrate of controlling use for installing, and this installation portion is arranged at the position away from described heating part.
Circuit substrate is positioned at the position away from described heating part below sewing machine table.Because the heat that sends of heating part is dispersed into sewing machine table top via ventilation road, so the circuit substrate impact of not being heated, can normally move.
In the Sewing machines of technical scheme 5 to 8, described sewing machine main body comprises: the column that is erected in described sewing machine table top; And the horn extending substantially in parallel with described sewing machine table from the top of described column, described heating part is installed on described lower cover to be located at the mode of the below of described column, and described ventilation road is arranged at the described sewing machine table of the contrary side of a side of extending with the described horn of described column.
Heating part is installed on the below of column, and ventilation road is arranged near column.Processing on ventilation Lu Buyu sewing machine table is overlapping.Air is not processed the obstruction of cloth and through ventilation road, is processed cloth and do not hinder ventilation road and move on sewing machine table.
In the Sewing machines of technical scheme 9, described heating part is so that the regeneration resistance that its mode contacting with the lower surface of described lower cover is installed.
During electricity when consuming sewing machine electromotor and slow down, regeneration resistance sends more heat transfer.Regeneration resistance so that its install with the mode that the lower surface of lower cover contacts.Because the heating of regeneration resistance is delivered to lower cover, and contact in larger scope with through the air on ventilation road, so the heating of the resistance of regenerating can diffuse to well above sewing machine table together with air.
The sewing machine table of technical scheme 10 has peristome, the part of sewing machine main body that this peristome can make to be arranged at sewing machine table top is outstanding downwards, described sewing machine table has ventilation road, this ventilation road be arranged near described peristome with the nonoverlapping position of described sewing machine main body, and the upper and lower of sewing machine table is communicated with.
Sewing machine table has the ventilation road that its upper and lower is communicated with.Sewing machine main body on ventilation road and sewing machine table is not overlapping.Sewing machine table so that near the mode that ventilation road is located at the heating part that lower cover installs use.Due to the heat that sends of heating part below sewing machine table towards above through ventilation road, under the effect of mobile air, reject heat to above sewing machine table, therefore generating heat part can be fully cooling.The heat that heating part sends is deviate to sewing machine table top, can not be stuck in the below of sewing machine table.
Accompanying drawing explanation
Fig. 1 is the front view of Sewing machines.
Fig. 2 is the stereogram that the past beneath is provided with the lower cover of circuit substrate.
Fig. 3 is the front view that the lower cover of circuit substrate is installed.
Fig. 4 is provided with the top view of the lower cover of circuit substrate from beneath.
Fig. 5 observes the stereogram of lower cover inside from top.
Fig. 6 is the stereogram from beneath lower cover lower surface.
Fig. 7 is the cutaway view that the VII-VII line along Fig. 3 dissects.
Fig. 8 is the cutaway view that the VIII-VIII line along Fig. 4 dissects.
Fig. 9 is the left view of substrate lid in closed condition.
Figure 10 is the left view of substrate lid in open mode.
Figure 11 observes the stereogram of presser feet handle holding state from top.
Figure 12 is the side view of linkage.
Figure 13 is the rearview of linkage.
Figure 14 is the key diagram of the variation of heat transmission protuberance.
Figure 15 is the key diagram of the variation of circuit substrate in installment state.
The specific embodiment
Below, with reference to accompanying drawing, the preferred embodiment of the present invention is described.The direction (front, rear, left and right) of below using in explanation represents with arrow in the drawings.
As shown in Figure 1, Sewing machines comprises the sewing machine main body 100 being arranged on sewing machine table 20.Sewing machine main body 100 comprises base 101, column 102, horn 103.Base 101 be take the mode that its long side direction is left and right directions and is installed on sewing machine table 20.
Sewing machine table 20 has the oblong openings portion 10 corresponding with base 101.Sewing machine main body 100 is to install by the mode of base 101 occlusion of openings portions 10.Base 101 within it portion comprises feed mechanism and shuttle mechanism (not shown).Feed mechanism and shuttle mechanism are covered by the lower cover 200 being installed under sewing machine table 20.Lower cover 200 is made by the metal material with heat conductivity, for example made of aluminum.
Column 102 the right part of base 101 towards above erect.Horn 103 extends towards left from the upper end of column 102.Horn 103 is at its cephalic par supporting needle rod 105 and presser bar 107.
The lower end of shank 105 and presser bar 107 is outstanding towards the below of horn 103.Shank 105 is installed eedle 106 in its lower end.Shank 105 and eedle 106 rise, decline by being located at the action of the needle bar drive device (not shown) in horn 103.Presser bar 107 is installed presser feet 108 in its lower end.Presser bar 107 and presser feet 108 are risen, are declined by the action of the presser bar lifting mechanisms 6 (with reference to Figure 11) in column 102, horn 103.
The presser feet 108 declining is pressed the processing cloth on base 101.Needle bar drive device is interactive with feed mechanism, shuttle mechanism by the driving of the included sewing machine electromotor (not shown) of sewing machine main body 100.Eedle 106 rises, declines and make the processing cloth on base 101.Sewing machine electromotor is installed on the right side of the column 102 of tegmentum 109 coverings.
As shown in Figure 2 to 4, lower cover 200 is at its lower surface mounting circuit substrate 300.Lower cover 200 has the first cap 210 and the second cap 220.As shown in Figure 1, the first cap 210 is positioned at the cephalic par side (left side) of horn 103.The second cap 220 is positioned at column 102 sides (right side).The first cap 210, the second cap 220 have the lower surface parallel with sewing machine table 20.The lower surface of the second cap 220 is positioned at top with respect to the lower surface of the first cap 210.As shown in Figure 3, Figure 4, circuit substrate 300 is installed on the lower surface of the second cap 220.The installation portion of circuit substrate 300 is covered by substrate lid 400 (with reference to Fig. 1).
Circuit substrate 300 comprises controls substrate 310 and power supply board 320.Control substrate 310, power supply board 320 configure a plurality of circuit component 312,322 on a face separately.As shown in Figure 6, the second cap 220 has a plurality of protuberances 203 at its lower surface.A plurality of protuberances 203 have identical height.Control substrate 310, power supply board 320 so that the configuration plane of circuit component 312,322 mode is downward placed on corresponding protuberance 203, and be screwed and be installed on each protuberance 203.As shown in Figure 3, control substrate 310, power supply board 320 is parallel with this lower surface on the position of the distance lower surface of the second cap 220 and the corresponding size of height of protuberance 203.Control substrate 310, power supply board 320 so that the configuration plane of circuit component 312,322 mode and sewing machine table 20 downward installed abreast.
In controlling the circuit component 312 of substrate 310, integrated circuit, resistance, the part that capacitor equal altitudes is lower are more.In the circuit component 322 of power supply board 320, the part that transformer equal altitudes is higher is more.Power supply board 320 is installed on the position away from the first cap 210 on the lower surface of the second cap 220.Control substrate 310 is installed near the first cap 210 on the lower surface of the second cap 220.
The circuit component 312 of controlling substrate 310 comprises than the low circuit component 313 of specified altitude To and the circuit component 314 higher than specified altitude To.In controlling the circuit component 312 of substrate 310, by lower circuit component 313 centralized configuration near the first cap 210, by higher circuit component 314 centralized configuration in the position away from the first cap 210.
While as mentioned above lower cover 200 being installed, power supply board 320 is positioned at right side, controls substrate 310 and is positioned at left side.Control substrate 310 and there is the low part configuration section of the lower circuit component of configuration 313 and the high part configuration section that configures higher circuit component 314.Low part configuration section is separated on left and right directions with high part configuration section, and the mode that the low part configuration section of take is right side as left side, high part configuration section is installed.While observing lower cover 200 integral body, higher circuit component 322,314 is positioned at right side, and lower circuit component 313 is positioned at left side.As shown in Figure 1, the right side that the substrate lid 400 that covers circuit substrate 300 installation portions has a higher circuit component of configuration 322,314 under, the left side of the lower circuit component 314 of configuration is in upper such stage portion.
Circuit substrate 300 configures the configuration plane of circuit component and the lower surface of lower cover 200 abreast.Circuit substrate 300, substrate lid 400 do not take larger space below sewing machine table 20.On circuit substrate 300, circuit component centralized configuration highly higher in circuit component is in right side, and highly lower circuit component centralized configuration is in left side.Operator is sitting in the place ahead of the operating area of eedle 106 and presser feet 108 belows and carries out operation.Because operator's pin is positioned at the side that highly lower circuit component is concentrated below sewing machine table 20, so circuit substrate 300, substrate lid 400 be not easy below sewing machine table 20 the pin collision with operator, can increase work efficiency.
As shown in Figure 3, Figure 4, control substrate 310 and comprise heating part 315.Heating part 315 is for example IPM (Intelligent Power Module: SPM).Heating part 315 is disposed at the central portion of the face towards top of controlling substrate 310.
As shown in Figure 6, lower cover 200 has contact site 240.Contact site 240 on the lower surface of the second cap 220 towards below outstanding.Contact site 240 has position, shape, the size corresponding with the heating part 315 of controlling substrate 310.As shown in Figure 3, the upper surface of heating part 315 contacts with contact site 240.The heat that heating part 315 sends is delivered to lower cover 200 via contact site 240.
As shown in Figure 5, lower cover 200 has the protuberance 257 of heat transmission in side bottom surface within it.Protuberance 257 is the linearity extending along fore-and-aft direction, and on left and right directions, is arranged with a plurality of.The formation position of protuberance 257 is corresponding with the contact site 240 of the second cap 220 lower surfaces.Protuberance 257 is larger with the area that its ambient air contacts, and it makes the heat that is delivered to lower cover 200 via contact site 240 distribute towards periphery.The heat that heating part 315 sends can distribute with the effect of protuberance 257 reliably by contact site 240.
While there is a plurality of heating part 315, in the position of each heating part 315, contact site 240, protuberance 257 are set.When the position of a plurality of heating parts 315 is nearer, contact site 240, protuberance 257 also can share.
As shown in Figure 1 and Figure 2, the peristome 10 of sewing machine table 20 has notch part 12.Notch part 12 is located at the central portion of oblong openings portion 10 right edge.The lid 109 of sewing machine main body 100 is positioned at notch part 12 tops.Between lid 109 and sewing machine table 20, there is gap S.Lid 109 does not stop up notch part 12.Notch part 12 forms the ventilation road being communicated with up and down of sewing machine table 20.
The second cap 220 comprises heating part 330.Heating part 330 is for example the regeneration resistance of the electricity while consuming sewing machine electromotor deceleration.As shown in Figure 2 to 4, heating part 330 is adhered to the right part of the second cap 220 lower surfaces.Heating part 330 is positioned near notch part 12.The heat that heating part 330 sends is in the interior generation free convection of notch part 12.Heating part 330 by with in notch part 12 from below towards above mobile wind contact and cooling.Notch part 12 arranges in mode corresponding to the position with heating part 330.For example, when heating part 330 is disposed at the rearward end of the second cap 220 lower surfaces, notch part 12 is located at the back side edge of peristome 10.
As shown in Figure 5, Figure 8, lower cover 200 is cuboid box of whole the opening on top.As mentioned above, lower cover 200 comprises the first cap 210 and the second cap 220.The first cap 210 forms deeplyer than the second cap 220 for taking in feed mechanism and shuttle mechanism.Therefore,, when lower cover 200 is installed on to sewing machine table 20, the lower surface of the first cap 210 than the lower surface of the second cap 220 more on the lower.
The first cap 210 and the second cap 220 are separated wall 230 and separate.The first cap 210 works as the oily reservoir that shuttle mechanism is lubricated.Partition wall 230 prevents that the oil in the first cap 210 from entering in the second cap 220.The first cap 210 has opening 211.Opening 211 is formed to lower surface from the left surface of the first cap 210, for being installed on the maintenance activities such as replacing of the shuttle of shuttle mechanism.
As shown in Figure 3, the lower surface of the first cap 210 is than being disposed at the second control substrate 310 of cap 220 lower surfaces, the installation position of power supply board 320 sets low h.Oil in the first cap 210 leaks into outside and flows to the second cap 220 along the lower surface of the first cap 210 from opening 211 sometimes.Because oil can be parked in the border of the first cap 210 and the second cap 220, so can not be attached to control substrate 310, power supply board 320.Control substrate 310, power supply board 320 can normally move.
As shown in Figure 6, the second cap 220 has outstanding wall 204.Outstanding wall 204 is outstanding from the following table faced downwards of the second cap 220.Outstanding wall 204 surrounds around the installation portion of controlling substrate 310, power supply board 320 from three directions.A remaining direction is surrounded by the stage portion between the first cap 210 and the second cap 220.
In making operation, operator trickles down the liquid such as drinking water on sewing machine table 20 sometimes.Unrestrained liquid can, along the side faced downwards drippage of lower cover 200, arrive the lower surface of the second cap 220.Outstanding wall 204 stops the liquid that arrives the second cap 220 lower surfaces.Because outstanding wall 204 surrounds the installation portion of controlling substrate 310, power supply board 320, so liquid can not be attached to control substrate 310, power supply board 320.Control substrate 310, power supply board 320 can normally move.
The upper opening of lower cover 200 is the rectangle identical with the peristome 10 of sewing machine table 20.As shown in Figure 8, the long limit Lh2 (left and right directions length) of long limit Lc2 (left and right directions length) the ratio open portion 10 of upper opening is long.As shown in Figure 7, the minor face Lh1 (fore-and-aft direction length) of the minor face Lc1 of upper opening (fore-and-aft direction length) ratio open portion 10 is long.Sewing machine table 20 has the lower edge of peristome 10 is carried out to deburring and the recess 22 that forms on its lower surface.
As shown in Figure 5, Figure 6, lower cover 200 has bolt installation portion 256 in four corners of opening at an upper portion thereof.As shown in Figure 7, Figure 8, lower cover 200, by its upper opening is aimed at the recess 22 under sewing machine table 20, is tightened on the bolt (not shown) through bolt installation portion 256 in the bolt hole that is formed at recess 22, and is installed on sewing machine table 20.
Substrate lid 400 is box-shaped lids that the installation portion of circuit substrate 300 (controlling substrate 310, power supply board 320) is covered.As shown in Figure 9, Figure 10, substrate lid 400 has along the outstanding axial region 402 of left and right directions the front side of opening at an upper portion thereof.The second cap 220 has support portion 207 (with reference to Fig. 6) on its lower surface.Outstanding wall 204 both ends of 207 front side, support portion are outstanding towards below.Support portion 207 has the supported hole of left and right directions.By the axial region of left and right 402, the supported hole through support portion 207 supports substrate lid 400.Substrate lid 400 by rotating to open and close the installation portion of circuit substrate 300 centered by axial region 402.
As shown in Figure 9, the lid of the substrate in closed condition 400 covers the installation portion of circuit substrate 300.The substrate lid 400 of closed condition prevents that the foreign matters such as dust are attached to circuit substrate 300 and prevent operator's pin contact circuit substrate 300.
As shown in the enlarged drawing in Fig. 7, Fig. 8, the upside opening of the substrate lid 400 of closing is in the inner side of outstanding wall 204.Substrate lid 400 inner sides at outstanding wall 204 form labyrinth part LS.Labyrinth part LS plays and makes to cross the function that the liquid of outstanding wall 204 stops.Liquid along lower cover 200 side drippages stops reliably because of outstanding wall 204 and the cooperative effect of labyrinth part LS, can not be attached to circuit substrate 300 (controlling substrate 310, power supply board 320).Circuit substrate 300 can normally action under the state of non-cohesive dust, liquid.
As shown in figure 10, substrate lid 400 by rotating and open towards the place ahead centered by axial region 402.Operator opens substrate lid 400 when the maintenance activities such as the inspection of circuit substrate 300, replacing.The installation portion of circuit substrate 300 exposes at the rear side of substrate lid 400.Operator can be covered at substrate 400 rear side enforcement maintenance activity.
Substrate lid 400 sometimes in making operation because vibration is opened.Substrate lid 400 rotates towards the place ahead, below sewing machine table 20, collides with operator's pin.Operator recognizes the unlatching of substrate lid 400, substrate can be covered to 400 and close to proceed to make operation.Operator's pin can not contact with circuit substrate 300, can prevent electric shock accidents etc.
As shown in Figure 5, lower cover 200 has handle support portion 52 in the inside bottom surface of the second cap 220.Handle support portion 52 stands vertically in the right back of heat transmission protuberance 257.Handle support portion 52 has the supported hole that runs through its cephalic par along fore-and-aft direction.Lower cover 200 has the axis hole 254 that runs through its anterior side.Axis hole 254 is arranged in a straight line with the supported hole of handle support portion 52.Handle support portion 52 and axis hole 254 support the rotating shaft 51 of presser feet handle 50.
As shown in figure 11, the leading section of rotating shaft 51 is given prominence to towards the outside of lower cover 200 through axis hole 254.Presser feet handle 50 has handle bar 53.Handle bar 53 is connected with the leading section of rotating shaft 51 by connector 54.The cephalic par that handle bar 53 extends towards lower left at it has the operation panel 56 of circular plate type.
Rotating shaft 51 is at lower cover 200 inner support connecting elementss 55.Connecting elements 55 swings by rotating shaft 51 rotations.Connecting elements 55 is connected its cephalic par towards right-hand extension with presser bar lifting mechanisms 6.The cephalic par of connecting elements 55 is pressed towards below with the spring force of the chimeric helical spring 57 of rotating shaft 51.
As shown in Figure 1, handle bar 53 is generally positioned at for 20 times and makes operation panel 56 towards the position of left at sewing machine table.Operator aims at knee with operation panel 56, in the mode towards right-hand pressing operation plate 56, operate.Operation panel 56 and handle bar 53 counter-clockwise swing centered by rotating shaft 51.Connecting elements 55 so that the mode that its cephalic par improves in the interior swing of lower cover 200.
As shown in figure 11, presser bar lifting mechanisms 6 comprises two L shaped handles 60,61.Centered by the axle of L shaped handle 60,61 fore-and-aft directions by support bends portion, swing.L shaped handle 60 is disposed at the upper inner of column 102.The end towards right-hand extension of L shaped handle 60 is connected with connecting elements 55 by the connecting rod 62 of above-below direction.L shaped handle 61 is disposed at the cephalic par inner side of horn 103.The end of extending towards below of L shaped handle 60 is connected with the end of extending towards top of L shaped handle 61 by the connecting rod 63 of left and right directions.The end of extending towards left of L shaped handle 61 is connected with presser bar 107.
As mentioned above, presser bar 107 rises, declines together with being installed on the presser feet 108 of its lower end.As shown in Figure 1, shown in Figure 11, presser feet 108 is under normal conditions in decline state.Operator operates presser feet handle 50 when making presser feet 108 increase.L shaped handle 60 is connected with connecting elements 55.L shaped handle 60 is (in Figure 11) swing counterclockwise by the operation of presser feet handle 50.L shaped handle 61 is connected with L shaped handle 60.L shaped handle 61 is (in Figure 11) swing clockwise by the operation of presser feet handle 50.Presser bar 107 is connected with L shaped handle 61.Presser bar 107 and presser feet 108 rise because operating presser feet handle 50.
The handle support portion 52 that presser feet handle 50 is located in lower cover 200 is supported, and is disposed at the front portion of lower cover 200.Presser feet handle 50 can be configured to towards the below of lower cover 200, not extend in long way, and therefore, operator's pin can not collide with handle support portion 52, can increase work efficiency.
As shown in Figure 1, setting operation pedal 30 below sewing machine table 20.Operator is for driving, stopping sewing machine electromotor and make the rotary speed variation of sewing machine electromotor trample operation to operating pedal 30 in making operation.Operating pedal 30 is connected with linkage 40 by connecting rod 31.As shown in figure 13, linkage 40 is located at the rear side of the second cap 220.
Linkage 40 comprises swing handle 41, helical spring 42, rotating shaft 43, locating part 44.Swing handle 41 use rotating shafts 43 and support its right part.Rotating shaft 43 is the axles that extend along fore-and-aft direction.Connecting rod 31 is connected with the left part that swings handle 41.42 pairs of helical springs swing handle 41 and apply the spring force towards top.Swing handle 41 collisions that locating part 44 swings by the spring force with because of helical spring 42 limit the swing position that swings handle 41.
Swing handle 41 is generally positioned at the swing position of limited 44 restriction.When operating pedal 30 is operated, connecting rod 31 will swing handle 41 and pull towards below.Swing handle 41 overcome helical spring 42 spring force and clockwise (in Figure 13) swing.Rotating shaft 43 is rotated by swinging the swing of handle 41.The rotation of rotating shaft 43 is delivered to the pedal sensor (not shown) of being located in the second cap 220.The signal that pedal sensor output is corresponding with the operational ton of operating pedal 30.Sewing machine electromotor drives, stops according to the output of pedal sensor, and rotary speed is changed.
Linkage 40 is disposed at the rear side of lower cover 200, does not occupy the bottom of lower cover 200.Because operator's pin can, in lower cover 200 times and linkage 40 collisions, therefore can not improve operator's operating efficiency.Because lower cover 200 is made of metal, therefore support link mechanism 40 stably.Lower cover 200 is able to take to act on because of the operation of operating pedal 30 the larger load of linkage 40.
As mentioned above, sewing machine table 20 has notch part 12 at the middle body of the right edge of peristome 10.Notch part 12 forms in the outside of base 101 the ventilation road that the upper and lower of sewing machine table 20 is communicated with.Lower cover 200 comprises the heating part 330 of the lower surface right part that is disposed at the second cap 220.The ventilation road that notch part 12 forms is positioned near heating part 330.
Electricity when heating part 330 (regeneration resistance) slows down in order to consume sewing machine electromotor and the evolution of heat.Heating part 330 heats the air of its periphery below sewing machine table 20.Air rises through ventilation road (notch part 12) and deviates to sewing machine table 20 tops.Heating part 330 contacts with the air through ventilation road repeatedly.Air mobile makes to generate heat dissipation of heat that part 330 sends to sewing machine table 20 tops.
Heating part 330 is adhered to the lower surface of the second cap 220.The heat sending due to heating part 330 is delivered to the second cap 220, and comprise the second cap 220 in a big way in contact with air, therefore the dissipation of heat that the energy of flow of air is sent heating part 330 is reliably to sewing machine table 20 tops, thus the abundant cooling heating part 330 of energy.
Because ventilation road is arranged at notch part 12 periphery of peristome 10, the road that therefore ventilates can be formed near heating part 330 simply.Notch part 12 is arranged at the right side of column 102.Notch part 12 is not with to carry out the processing cloth that feeding moves on sewing machine table 20 overlapping.The flowing of air do not processed cloth obstruction and through notch part 12.Processing cloth can not be stuck in notch part 12 and can carry out well feeding and move.
Because the heat that sends of heating part 330 is deviate to sewing machine table 20 tops, do not stagnate in the below of sewing machine table 20, the part 330 that therefore generates heat can normally action in the situation that of affected by heat not.
Heating part 330 is disposed at the position away from the installation portion of circuit substrate 300 at the lower surface of the second cap 220.Due to the do not generated heat impact of part 330 heating of circuit substrate 300, so circuit substrate 300 (controlling substrate 310, power supply board 320) can normally move.
The following describes the variation that embodiment to illustrating has carried out partial alteration above.
1) protuberance 257 of heat transmission is positioned near the of heating part 315, can be located at the appropriate location of lower cover 200.
As shown in figure 14, the protuberance 257 of variation is located at the rear surface of lower cover 200.The heat that heating part 315 sends is delivered to lower cover 200 via contact site 240.Because protuberance 257 contacts with the air of lower cover 200 rear sides with larger area, the heat that is therefore delivered to lower cover 200 can the heat radiation effectively by the effect of protuberance 257.
2) as shown in figure 15, the lower cover 200 of variation comprises framework 500 at the lower surface of the second cap 220.The lower surface of framework 500 and the second cap 220 is vertical and extend downwards.Circuit substrate 300 (controlling substrate 310, power supply board 320) is installed on the front side of framework 500 by protuberance 501.Framework 500 has contact site 240 in its front side.Heating part 315 contacts with contact site 240.The heat that heating part 315 sends is delivered to lower cover 200 via contact site 240 and framework 500 and dispels the heat to its periphery.Substrate lid 400A covers circuit substrate 300.
Circuit substrate 300 also can be installed on the rear side of framework 500.Circuit substrate 300 also can be in front side, the rear side separate configuration of framework 500.
Claims (6)
1. a Sewing machines, comprising:
Sewing machine table, this sewing machine table has peristome;
Sewing machine main body, this sewing machine main body is arranged on described sewing machine table to stop up the mode of described peristome; And
Lower cover, this lower cover will cover from the bottom of the outstanding described sewing machine main body of described peristome,
At described lower cover, heating part is installed, it is characterized in that,
Described sewing machine main body comprises: the column that is erected in described sewing machine table top; And the horn extending substantially in parallel with described sewing machine table from the top of described column,
Described heating part is installed on described lower cover to be located at the mode of the below of described column,
Near the contrary side of a side that described sewing machine table extends described column, with described horn has ventilation road, and this ventilation road is communicated with the upper and lower of described sewing machine table.
2. Sewing machines as claimed in claim 1, is characterized in that,
Cut away a part for the periphery of described peristome to form on described ventilation road.
3. Sewing machines as claimed in claim 1, is characterized in that,
Described lower cover has the installation portion that described sewing machine main body is driven to the circuit substrate of controlling use for installing,
This installation portion is arranged at the position away from described heating part.
4. Sewing machines as claimed in claim 2, is characterized in that,
Described lower cover has the installation portion that described sewing machine main body is driven to the circuit substrate of controlling use for installing,
This installation portion is arranged at the position away from described heating part.
5. the Sewing machines as described in any one in claim 1 to 4, is characterized in that,
Described heating part is so that the regeneration resistance that its mode contacting with the lower surface of described lower cover is installed.
6. a sewing machine table, has peristome, and the part of sewing machine main body that this peristome can make to be arranged at sewing machine table top is outstanding downwards, it is characterized in that,
Described sewing machine main body comprises: the column of erectting towards top; And start from the top of described column the horn extending,
Described sewing machine table has ventilation road, this ventilation road be arranged at the contrary side of a side of extending with described horn, with the nonoverlapping position of described column, and the upper and lower of sewing machine table is communicated with.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010220401A JP2012075449A (en) | 2010-09-30 | 2010-09-30 | Sewing machine table and sewing machine |
| JP2010-220401 | 2010-09-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102560921A CN102560921A (en) | 2012-07-11 |
| CN102560921B true CN102560921B (en) | 2014-12-10 |
Family
ID=46236461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110308265.4A Active CN102560921B (en) | 2010-09-30 | 2011-09-29 | Sewing machine and sewing machine table |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2012075449A (en) |
| CN (1) | CN102560921B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510300A (en) * | 2013-09-18 | 2014-01-15 | 苏州巨康缝制机器人有限公司 | Platen |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1239160A (en) * | 1998-06-12 | 1999-12-22 | 重机株式会社 | Control box of sewing machine |
| CN201491961U (en) * | 2009-08-24 | 2010-06-02 | 中国地质大学（武汉） | Notebook computer desk |
-
2010
- 2010-09-30 JP JP2010220401A patent/JP2012075449A/en active Pending
-
2011
- 2011-09-29 CN CN201110308265.4A patent/CN102560921B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1239160A (en) * | 1998-06-12 | 1999-12-22 | 重机株式会社 | Control box of sewing machine |
| CN201491961U (en) * | 2009-08-24 | 2010-06-02 | 中国地质大学（武汉） | Notebook computer desk |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012075449A (en) | 2012-04-19 |
| CN102560921A (en) | 2012-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104864502A (en) | Air conditioner | |
| CN102560921B (en) | Sewing machine and sewing machine table | |
| CN102443978B (en) | Lower cover of sewing machine and sewing machine thereof | |
| CN102443979B (en) | Lower cover of sewing machine and sewing machine thereof | |
| CN102443981B (en) | Lower cover of sewing machine and sewing machine thereof | |
| CN102443980B (en) | Lower cover of sewing machine and sewing machine thereof | |
| CN102443983B (en) | The lower cover of Sewing machines | |
| CN201960437U (en) | Auto welding electrode high speed bidirectional automatic grinding system equipment | |
| CN202626593U (en) | Control device for overlock machine | |
| CN102535051A (en) | Sewing machine, lower cover and platen of sewing machine | |
| CN117261641A (en) | New energy automobile wireless charging equipment | |
| CN206452223U (en) | A kind of universal generator's cover | |
| CN102443982A (en) | Lower cover of sewing machine and sewing machine thereof | |
| CN102443984A (en) | Lower cover of sewing machine and sewing machine thereof | |
| CN101509182B (en) | Sewing machine | |
| CN105880737B (en) | A kind of Figured aluminium plate striated surface rotary cutting apparatus | |
| CN202163626U (en) | Laminating machine | |
| CN215921725U (en) | Seal carving machine convenient to cool | |
| CN209364768U (en) | A kind of transverse direction plastic packaging machine waste discharge mechanism | |
| CN207692265U (en) | A kind of communication cabinet radiator | |
| CN201636055U (en) | Improved blade-rotating fan | |
| CN220094260U (en) | Protective cover structure for ball grinder | |
| JP2016145491A (en) | Construction machine | |
| CN218796959U (en) | Glue coating detection special machine for new energy battery tray | |
| CN103889190B (en) | The radiator structure of elevator control cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |