CN202644119U

CN202644119U - A sewing machine

Info

Publication number: CN202644119U
Application number: CN 201220061564
Authority: CN
Inventors: 安藤孝树; 河合泰典
Original assignee: Aisin Seiki Co Ltd
Current assignee: Aisin Corp
Priority date: 2011-02-24
Filing date: 2012-02-23
Publication date: 2013-01-02
Anticipated expiration: 2022-02-23
Also published as: JP5822056B2; EP2492386B1; JP2012170759A; EP2492386A1

Abstract

The utility model provides a sewing machine (1) which can be used when a workpiece (100) on a base (1b) is manually moved by a user to a desired position for processing a sewing product on the workpiece (100). The sewing machine (1) comprises a sewing needle (2) which processes the sewing products on the workpiece (100) disposed on the base (1b); driving sources (3, 3a, 3b) for driving the sewing needle (2); a control unit (4) for controlling the driving sources (3, 3a, 3b); and an operation unit (10) which is electrically connected to the control unit (4), changeably operate the sewing needle (2), and is configured to attached on a periphery (50a) of a frame part (50) so as to make the workpiece (100) be in a tensioning state.

Description

Sewing machines

Technical field

The disclosure relates generally to a kind of Sewing machines.

Background technology

Be equipped with and be commonly referred to freely-movable to make the Sewing machines of the function of function be known, this functional configuration become by workpiece is assemblied in make in the framework and on the base plate of Sewing machines manually motion make framework and process sewings.For example, at JP2010-207542A(hereinafter referred to as patent documentation 1) in, a kind of Sewing machines is disclosed, this Sewing machines comprise the downside place that is positioned at the sewing head sewing needle, side by side repeatedly press darning presser feet and buttonhole switch portion with disengaging movement with the motion of sewing needle on workpiece, this buttonhole switch portion is equipped near sewing needle and towards this sewing needle and be configured to control the beginning that buttonhole makes and stop.According to disclosed Sewing machines, the operator of Sewing machines is provided in buttonhole switch near place, the fixed position of sewing needle with finger-tip operated, makes the beginning of function and stops with control freely-movable when carrying out freely-movable and make.

According to the known Sewing machines in the patent documentation 1, when the operator carries out freely-movable and makes in the past on the workpiece processing sewings, the operator usually uses and makes framework and make framework with mobile back and forth between tensioning state that workpiece is provided and the both hands that are centered around the operator everywhere, so that make the sewing position that framework reaches to be needed.

In this case, make framework when for example moving to desired location for base plate or the base portion that extends platform when the operator with the hands grasps to make framework and make from opposite side, make operation and become and be more prone to.According to the Sewing machines of above-mentioned structure, the operator grasped by both hands make framework in finger tip control by a hand be used for beginning and the shutdown switch that freely-movable is made, this switch is provided in and is fixed near on the locational buttonhole switch lever of sewing needle.Therefore, the operator can face operating difficulties.Thus, need improved operation so that the operator can be easily and accurately to operate the processing sewings.There is not this improvement, the operator who then uses large model to make framework particularly points when less operator operates above-mentioned Sewing machines may face following situation: when the operator planned to center on the center processing sewings of making framework, operator's finger tip can not reach beginning and the shutdown switch of making for freely-movable.

Therefore, exist for the needs that improve in the use simplification when carrying out freely-movable with the hand travelling workpiece and make and allow simultaneously more fine to adjust the Sewing machines that sewing needle moves.

The utility model content

The purpose of this utility model provides a kind of improvement in the use simplification when carrying out freely-movable with the hand travelling workpiece and make and allows more fine to adjust simultaneously the Sewing machines of sewing needle motion.

According to an aspect of the present disclosure, be used for by manually the workpiece movable on the base portion being comprised at the Sewing machines of described workpiece processing sewings to desired location by the operator: sewing needle, the described sewing needle described workpiece on described base portion is processed sewings; Activate the drive source of described sewing needle; Control the control part of described drive source; And operating portion, described operating portion is connected electrically to described control part and operates changeably described sewing needle, and described operating portion is configured to be attached on the periphery of frame section, so that described workpiece is in tensioning state.

Substitute place, the fixed position on Sewing machines setting operation section as traditional Sewing machines, operating portion is arranged on be used to making workpiece be in the periphery of the frame section of tensioning state, and the operator of close Sewing machines grasps and the operating portion of the position of the hand of scaffold section so that the operator may operate in.Compared to traditional Sewing machines, make the close operator's of operating portion hand so that the operator can more easily control the motion of sewing needle more delicately.Even make framework and use and have large diameterly when making framework by grasping with palm the operator, the operator still can come with the finger tip of for example forefinger or middle finger control operation section.Therefore, when processing sewings on workpiece, the operator can sensitiveer and easily control the motion of sewing needle, in order to for example have the sewings of the required design of sewing pattern, embroidery and symbol in desired locations processing.

According to another aspect of the present disclosure, Sewing machines comprises the attachment part that is arranged between described operating portion and the described frame section, so that the operator is with respect to the direction on change operation surface to and fro between vertical direction and horizontal direction of the described frame section on the described base portion.

Between described operating portion and described frame section, attachment part is set so as the operator with respect to the direction on change operation surface to and fro between vertical direction and horizontal direction of the frame section on the base portion, thereby manually can change by changing attachment part the direction of operating surface with the operator of the Sewing machines of frame section, so that with simple structure theory be easy to operation changes operating portion to and fro between vertical direction and horizontal direction with respect to frame section according to operator's use simplification position.This Sewing machines provides selection according to operator's operation hobby, in order to operate for the operator provides more easily.Therefore, provide advantage for making operation has a design of minor variations with processing the operator of sewings with the control of larger sensitivity.

According to another aspect of the present disclosure, Sewing machines comprises the operating portion that is equipped with the variable resistance type console switch.

When operating portion adopted the variable resistance type console switch, the operator can for example make width (distance of mobile sewing needle), control the motion of sewing needle on the speed of mobile sewing needle and the speed that along continuous straight runs moves sewing needle in the continually varying mode along the vertical direction.Therefore, the operator for the more flexibly three-dimensional motion of needs control sewing needle provides advantage.

Sewing machines comprises the operating portion of the maintaining part that is equipped with clip-type more on the one hand according to of the present disclosure, and described maintaining part is configured to the object that is kept for keeping.Described operating portion be configured to by described maintaining part and the object that keeps attached with separate.

Be equipped with clip-type maintaining part operating portion can by maintaining part and the object that keeps attached with separate.For example, in the situation that do not use frame section to make workpiece be in tensioning state dealing workpiece processing for example during the sewings of embroidery by direct with the hand holding workpiece, maintaining part is holding workpiece directly as the operator.In this case, the operator can remain on operating portion the desired locations place near the hand of holding workpiece.When using the position of hand travelling workpiece, operating portion is mobile with the workpiece that is moved.In other words, operating portion is all the time near hand, location, in order to easily control flexibly the motion of sewing needle.

According to another aspect of the present disclosure, Sewing machines comprises the operating portion of the maintaining part that is equipped with the clip-type that is configured to direct holding workpiece.

The direct holding workpiece of operating portion of the maintaining part of clip-type is equipped with in the situation that do not use frame section to make workpiece be in tensioning state dealing workpiece processing for example during the sewings of embroidery by direct with the hand holding workpiece, as the operator.In this case, the operator can remain on operating portion the desired locations place near the hand of holding workpiece.When using the position of hand travelling workpiece, operating portion is mobile with the workpiece that is moved.In other words, operating portion is all the time near hand, location, in order to easily control flexibly the motion of sewing needle.

According to another aspect of the present disclosure, Sewing machines comprises from described frame section separates and is configured to be placed in operating portion in the tread portion, described tread portion is provided for carrying out operated by foot by the operator, to control changeably the motion of described sewing needle according to operator's operated by foot amount.

Be arranged in the tread portion and tread portion is configured to be trampled in the above in order to operate by the operator from making operating portion that framework separates, thereby the operator can control according to the amount that tread portion is pressed by the underfooting motion of sewing needle.Therefore, the operator can be according to the simplification choice for use of the operation operating portion as the foot controller that will be controlled by pin.

Description of drawings

From the detailed description of considering below with reference to accompanying drawing, above-mentioned and other feature of the present disclosure and characteristic will become clearer, in the accompanying drawing:

Fig. 1 is the stereogram according to the Sewing machines of the first embodiment;

Fig. 2 is the block diagram that the control system structure of Sewing machines shown in Figure 1 is shown;

Fig. 3 A is the diagram that is illustrated in operating portion with respect to the attached state of operating portion (that is, attachment structures A) of making frame side in the attached situation;

Fig. 3 B is the diagram that is illustrated in operating portion with respect to the attached state of operating portion (that is, attachment structures B) in the to make framework vertical attached situation;

Fig. 4 is operating portion with respect to making the stereogram with operating portion of making framework of framework when vertically attached;

Fig. 5 is that explanation is attached to the diagram of making the structure on the framework with operating portion in attached structure A;

Fig. 6 is the diagram that the operating portion shown in the Fig. 1 that is disassembled is shown, with the explanation internal structure;

Fig. 7 be according to the second embodiment with the stereogram of making frame shape all-in-one-piece operating portion;

Fig. 8 is the stereogram according to the operating portion of the 3rd embodiment, is illustrated in the position that equipment keeps the maintaining part of operating portion on the operating portion;

Fig. 9 is the diagram of the basic element of character that the clip structure of the maintaining part that is exaggerated is shown;

Figure 10 is explanation integrally is included in the operating portion of upper shell inside according to the one-tenth of the 4th embodiment diagram; And

Figure 11 is the cross-sectional view of upper shell shown in Figure 10, and the position that is included in the operating portion in the upper shell is described.

The specific embodiment

Embodiment hereinafter with reference to description of drawings Sewing machines 1.

The first embodiment of Sewing machines 1 below will be described.Fig. 1 is the stereogram according to the Sewing machines 1 of the first embodiment, and Fig. 2 is the block diagram that the control system structure of Sewing machines shown in Figure 11 is shown.

As shown in Figure 1, Sewing machines 1 comprises main body 1a and the operating portion 10 of Sewing machines 1, and the operator of Sewing machines 1 is by the motion of operating portion 10 control sewing needles 2.The main body 1a of Sewing machines 1 comprises base plate 1b, upright arm 1c, horizontal arm section 1d and sewing head 1e, base plate 1b is as base portion and have processing such as the flat upper surfaces for sewingss such as embroidery, upright arm 1c vertically erects from the end of base plate 1b, horizontal arm section 1d from the upper end of upright arm 1c towards and be parallel to base plate 1b and extend, sewing head 1e is from the free end of the horizontal arm section 1d that extends to downward-extension.

Be used for making the bottom that is attached to sewing head 1e such as the sewing needle 2 that is the sewings of embroidery.According to the Sewing machines 1 with this structure, sewing needle 2 is by drive source 3(the first drive source 3a and the second drive source 3b) up and down or about drive, drive source 3 is by controller 4 control as control part, as shown in Figure 2.

Extend platform K and can be attached on the free end as the base plate 1b of the base portion of the Sewing machines 1 shown in Fig. 1, for example be the operation of the sewings of embroidering so that carry out on the workpiece 100 processing.The upper surface that extends platform K is the continuous surface that is in par with the upper surface of base plate 1b.Extension platform K removably is affixed to and is assembled in the base plate 1b.Extending on platform K and the base plate 1b, when the processing sewings, using and make framework 50 as frame section.Extending on platform K and the base plate 1b, the operator can be manually to the direction of any desired---such as, more close operator, direction of feed or operator's left side and right side---the mobile framework 50 of making, to be used for processing sewings at the place, desired position, wherein make framework 50 and make workpiece 100 in the zone that is centered on by framework, be in tensioning state.

Be configured to manually adjust the motion of sewing needle 2 according to the operating portion 10 of the first embodiment, so that as the operator of Sewing machines 1 in the situation that operator when manually travelling workpiece 100 is commonly referred to the method for sewing that freely-movable makes, the operation of processing sewings is more prone to.

As shown in Figure 1, operating portion 10 optionally is attached on the periphery 50a that makes framework 50 of annular shape.

The outside of operating portion 10 is formed with housing 30, and housing 30 is made of two parts and is shaped so that the operator can firmly grasp operating portion 10.Operating portion 10 is equipped with console switch 20, and console switch 20 has can be by the operating surface 20a of operator's operation.Formed surface was outstanding when console switch 20 cooperatively interacted along a direction from two parts at housing 30.In Fig. 1, the direction of console switch formed Surface Vertical when cooperating with respect to two parts at housing 30 is outstanding.Housing 30 comprises the first housing 31 with U-shaped cross section and the second housing 32 that has equally the U-shaped cross section.The first housing 31 and the second housing 32 in separately end in conjunction with and by screw or similarly fixed component remain in this state.As shown in Figure 1, console switch 20 is arranged on the surface of operating portion 10 along described vertical direction, come operating operation switch 20 so that the operator can make framework 50 finger tip by for example at least one finger in the desired location in manipulation, these fingers can for example be forefinger, middle finger or thumb.Console switch 20 adopts the variable resistance type switch.Console switch 20 can be configured to the switch of other patterns except the variable resistor pattern, as long as this switch can detect operator's movement.For example, console switch 20 can be the switch of pressure sensitive, and the continually varying output with the pressure correlation that is provided by finger manipulation is provided the pressure sensitive switch.

Operating portion 10 according to the first embodiment adopts wire harness H1, and wire harness H1 is the line of setting up electrical connection between the main body 1a of Sewing machines 1.The method of setting up this connection is not limited to this, for example, and being connected and can setting up with wireless mode by radio communication between the operating portion 10 of Sewing machines 1 and the main body 1a, and do not utilize wire harness H1.

According to Sewing machines 1 disclosed herein, when operation during Sewing machines 1, the operator manually during the operating surface 20a of operating operation switch 20, the operation of console switch 20 is converted into the signal of telecommunication.The operation signal of conversion is delivered to controller 4 via wire harness H1 as inputing to, and controller 4 is used as control part and is built on the main body 1a of Sewing machines 1.When controller 4 received operation signal from operating portion 10, controller 4 sent indication driving the first drive source 3a and the second drive source 3b, thus control sewing needle 2.

When as shown in fig. 1 console switch 20 was subject to pressing at operating surface 20a place because of operator's operation, operating surface 20a was pushed in the housing 30 by pressure.Console switch 20 is configured to turn back to initial position when pressure relief.This operational movement is converted into the signal of telecommunication and inputs to as operation signal delivers to controller 4.

According to the first embodiment, sewing needle 2 is made variable-width ground control making moving through of operating period, makes width and be sewing needle 2 with respect to base plate 1b and the distance of extending platform K horizontal ground motion.Alternatively, the motion of sewing needle 2 for example can be controlled changeably by sewing velocity or needle stop position.

According to the simplification of operator's operation, operating portion 10 can be attached in upright position or horizontal level with respect to making framework 50.Operating portion 10 can be attached on the periphery 50a that makes framework 50 with the horizontal tectonics shown in Fig. 3 A or with the vertical structure shown in Fig. 3 B, and can freely change structure according to the simplification of operator's operation.Fig. 3 A illustrates attached structure A, and wherein operating portion 10 is attached to and makes on the framework 50 so that press operating operation switch 20 by along continuous straight runs.Fig. 3 B illustrates attached structure B, and wherein operating portion 10 is attached on the periphery 50a that makes framework 50, so that by along the vertical direction, namely press operating operation switch 20 along the direction vertical with respect to base plate 1b.

Below explanation is according to the structure of making framework 50 of the first embodiment.Fig. 4 is the stereogram that is attached to the operating portion 10 on the periphery 50a that makes framework 50 with attached structure B.Make framework 50 workpiece 100(is shown in broken lines) fill between upper frame and underframe, in the zone that is surrounded by framework, to make workpiece 100 be in tensioning state.Make framework 50 and comprise inner frame 51 and outside framework 52, when workpiece 100 is filled between (tuck down) said frame, inner frame 51 is to be positioned at inboard framework along the radial direction of making framework 50, and outside framework 52 is the frameworks that are positioned at the outside along the radial direction of making framework 50.When workpiece 100 being remained between inner frame 51 and the outside framework 52 and by screwing along clockwise direction when tightening the trip bolt 21 that is provided on the outside framework 52, the diameter of outside framework 52 reduces with respect to inner frame 51, makes on the framework 50 thereby workpiece 100 remained on.When screwing the screw 21 that tightens along the direction with the opposite direction that screws, workpiece 100 can be removed from making framework 50.

Next description operation section 10 and make attachment structures between the framework 50.As shown in Figure 4, operating portion 10 is attached on the periphery 50a that makes framework 50 via the attachment member 60 of being made by metal (or other materials, for example resin).In other words, be held between operating portion 10 and the attachment member 60, attachment member 60 and making between the framework 50 is held.Followingly based on Fig. 5 attached thin section is described.Fig. 5 is the diagram of the attachment structures of the attached structure of explanation A, and wherein major part is exaggerated.

In Fig. 5, the inner frame 51 of making framework 50 comprises bottom surface 54, be positioned at end face 55, the first extension 56 and second extension 57 of a side relative with bottom surface 54, bottom surface 54 has and is configured to place during making on the base plate 1b and the horizontal plane that contacts with base plate 1b face, the first extension 56 radially flatly extends internally from the interior section of end face 55, and the second extension 57 radially flatly extends out to the approaching length that is five times in the first extension 56 from the exterior section of end face 55.The end face of the end face of the first extension 56 and the second extension 57 is the parts that consist of the end face 55 of making framework 50.

Be assembled to the attachment member 60 of making on the framework 50 and keeping making framework 50 and comprise framework maintaining part 61 and housing maintaining part 62, framework maintaining part 61 is attached on the first extension 56 and the second extension 57 at the end face place of inner frame 51, and housing maintaining part 62 is extended vertically and is assembled at least one side of the operating portion 10 vertical configuration or the horizontal tectonics and keeps operating portion 10 from framework maintaining part 61.Framework maintaining part 61 is by engaging on the top surface side that is attached to inner frame 51 with the first extension 56 and second extension 57 of inner frame 51.Housing maintaining part 62 comprises with the form of the plate distolateral part of extending along lateral from framework maintaining part 61.As shown in Figure 5, this one distolateral be a side that when attachment member 60 is attached on the inner frame 51, is positioned at the outside in the radial direction of inner frame 51.Above-mentioned lateral is along the direction of the axial direction of inner frame 51 when attachment member 60 is attached on the inner frame 51.According to the first embodiment, as shown in Figure 5, be equipped with along straight up direction on the axial direction of inner frame 51 from the plate shape housing maintaining part 62 of this distolateral extension of framework maintaining part 61.According to the first embodiment, framework maintaining part 61 and housing maintaining part 62 are formed by metal, and it also can be formed by the other materials that for example is resin.

In addition, housing maintaining part 62 comprises the hook section 63 that is used as attachment part at distal side 62a.Attachment part 63 is L shaped, and when with the attached hook and being assembled on the housing 30 of operating portion 10 thereon time of operating portion 10.With respect to housing maintaining part 62 radially outwards outstanding hook section 63 be equipped with a plurality of, such as being two in the first embodiment, so that operating portion 10 is stably kept.Hook section 63 comprises that the 3rd extension 64 and the 4th extension 65, the three extensions 64 extend from distal side 62a and the part between the 62b of proximal lateral of housing maintaining part 62, and the 4th extension 65 vertically extends upward from the distal side of the 3rd extension 64.In other words, housing maintaining part 62, the 3rd extension 64 and the 4th extension 65 common key shapes that form.Form slot part 66 by the distal side 62a encirclement of the 3rd extension 64, the 4th extension 65 and housing maintaining part 62.Slot part 66 is configured to hook by opening 33 places on the sidepiece of the housing 30 that is formed at operating portion 10 and keeps operating portion 10, will further describe opening 33 after a while.On at least one side of operating portion 10, between housing maintaining part 62 and housing 30, be formed with two above-mentioned hooking structures.In Fig. 5, only in two configuration structures is shown.

Next attachment part in the hook section 63 that will be attached to attachment member of housing 30 is described.As shown in Figure 5, have separately first housing 31 in the cross section that basically takes the shape of the letter U and the second housing 32 in the separately fitting surface place combination at place, end, thereby and by for example be that the method for ultra-sonic welded keeps formation housing 30.According to the first embodiment, housing 30 is formed with opening 33 at the sidepiece that will be attached to housing maintaining part 62.According to the first embodiment, as shown in Figure 5, opening 33 is formed on the side of the second housing 32, and the second housing 32 is configured to firmly be kept by the operator.At the place, end of opening 33, the 32a of the section that folds into of the second housing 32 is assemblied between housing maintaining part 62 and the 4th extension 65, and remains on this.Fig. 5 illustrates and folds into similarly vertically formation of the 32a of section and housing maintaining part 62 and the 4th extension 65.

For operating portion 10 is attached on the attachment member 60, insert outwards outstanding hook section 63 in the opening 33 that is formed on the second housing 32 and slide section 10 straight down.Like this, fold on the slot part 66 that the 32a of section is inserted into hook section 63.Therefore, housing maintaining part 62 and operating portion 10 remain to each other and go up.

Next the internal structure of description operation section 10.As shown in Figure 6,10 one-tenth switch elements 40 that integrally are equipped with formation console switch 20 of operating portion.Switch element 40 is assembled into the second housing 32 sides.After having assembled switch element 40, cover the second housings 32 and utilize screw, make it remain on closure state by welding or other holding devices, to form operating portion 10 with the first housing 31.

Switch element 40 comprises the switch portion 41 as critical piece, variable resistance plate 42, the bar 43 that is used for contact accessory 43b, with spring 44, the operator uses finger operation switch section 41, the words that variable resistance plate pairs setting system is necessary are referred to as the 42a of variable resistance section of resistor board pattern (resister board pattern), 42b, variable resistance plate 42 detects based on the resistance value to the pressing quantity of switch portion 41, bar 43 is equipped with contact accessory 43b, contact accessory 43b dividing potential drop is by the 42a of variable resistance section, the relevant resistance value of the pressing quantity with switch portion 41 that 42b detects, spring 44 is arranged between the second housing 32 and the switch portion 41 and gets back to initial position with switch portion 41 bias voltages that will be subject to operator presses.

Switch portion 41 supporting centered by the first rotation section 32b that inwardly gives prominence to from the second housing 32 with being rotated, as shown in Figure 6.Switch portion 41 comprises the operating surface 41a with the surface that tilts smoothly, and when the operator operated Sewing machines 1, it was body part console switch on the 41a of this surface of left-hand finger for example that the operator uses.Operating surface 41a is arranged to from the outside outstanding state of the peripheral end of the housing 30 of operating portion 10.The operator for example press...with one's finger press and releasing operation surface 41a with operation Sewing machines 1, so that the operator can make when keeping inspection sewing state.

Spring 44 is assembled into the upper and switch portion 41 that will be subject to operator presses of the first rotation section 32b towards the direction bias voltage that returns initial position, and this direction be clockwise direction in Fig. 6.

Support with respect to the variable resistance plate 42 that remains on the second housing 32 inside with being rotated and rotate with the amount relevant with the pressing quantity of switch portion 41 with the bar 43 that is used for contact accessory 43b that the rotation of switch portion 41 is rotated relatively.Be used for end supporting centered by the second rotation section 43a of the bar 43 of contact accessory 43b, another end is arranged through press switching part 41 and moves with being rotated.In other words, support with being rotated an end that is used for the bar 43 of contact accessory 43b, and another end structure becomes to move rotationally with respect to maintained variable resistance plate 42 when the operating surface 41a of switch portion 41 is pressed.The bar 43 that is used for contact accessory 43b turns back to initial position by means of the biasing force of spring 44 when the pressure that comes self-pressing is disengaged.What the bar 43 that is used for contact accessory 43b was provided with conductive material in an end of the bar 43 that is used for contact accessory 43b and position between the other end contacts accessory 43b, and this conductive material for example is copper.When in order to operate during press switching part 41, contact accessory 43b is by rotating the direction that is pushed to variable resistance plate 42 with the bar 43 that is used for contact accessory 43b.Contact accessory 43b is connected to the 42a of variable resistance section, the 42b that is arranged on the variable resistance plate 42.When the bar 43 that is used for contact accessory 43b is pressed to operate, contact accessory 43b slidably motion on the 42a of variable resistance section, 42b.On the basis of this motion of contact accessory 43b, when on the terminal at the place, end that for example is applied to the 42a of variable resistance section, 42b for the predetermined voltage of 5V, location of short circuit changes and the internal resistance change of variable resistance plate 42.Therefore, detect continuously the corresponding voltage of operational ton with operating surface 41a.

Although according to the first embodiment, switch portion 41 is formed independently and is assembled with the bar 43 that is used for contact accessory 43b, switch portion 41 with can form and be assembled into parts for the bar 43 that contacts accessory 43b.In this case, in the time of can reducing the sum of parts and chief engineer.

Variable resistance plate 42 is arranged on the inside of operating portion 10 and the position that is pushed in switch portion 41, and is in other words as shown in Figure 6, and variable resistance plate 42 is arranged on the inside of operating portion 10 and on the rotation path of switch portion 41.Variable resistance plate 42 comprises resistor 42c, is connected electrically to the 42a(of the variable resistance section resistor board pattern on the resistor 42c) be connected electrically to the 42b(of variable resistance section resistor board pattern on the 42a of variable resistance section via contacting accessory 43b).The 42a(of variable resistance section resistor board pattern) is connected with the 42b(of variable resistance section resistor board pattern and electrically connects in the side that switch portion 41 is set.When contact accessory 43b motion, change as the position that is connected with the 42a of variable resistance section, 42b of location of short circuit so that the terminal of not short circuit---namely, the Ta of the first terminal section and the second portion of terminal Tb---between the resistance value change.The inside wire harness H2 of conductive material for example is connected among the Ta of the first terminal section and the second portion of terminal Tb each by soft soldering.In the other end of inner wire harness H2 each is connected electrically on the first connector A at the place, end on the longitudinal direction that is arranged on housing 30.

As shown in Figure 1, be arranged at the first connector A place on the operating portion 10 and be arranged at the second connector B place on the side of vertical lower position of main body 1a of Sewing machines 1, the relative end of exterior strands H1 is removably attached so that electrical connection to be provided.The second connector B is by another wire harness and controller 4 electrical connections that are arranged on Sewing machines 1 inside.

Controller 4 and drive source 3(the first drive source 3a and the second drive source 3b as control part) electrical connection, as shown in Figure 2.Controller 4 is according to the variation control drive source 3 of the internal resistance of the variable resistance plate 42 in the inside that is arranged on operating portion 10.

Drive source 3 comprises the first drive source 3a and the second drive source 3b, and the first drive source 3a is the drive source that sewing needle 2 is moved up and down, and the second drive source 3b drives sewing needle 2 along continuous straight runs reciprocating motions and makes width with control.Based on the order-driven drive source 3 that comes self-controller 4.

In the first embodiment, controller 4 sends instruction based on the variation of the resistance value of the variable resistance plate 42 that is arranged on operating portion 10 inside to the second drive source 3b, in order to control the second drive source 3b.Therefore, the operator can control by the operating surface 41a of operating operation section 10 and make width, namely controls the distance of mobile sewing needle 2.Except the distance that changes mobile sewing needle 2, the second drive source 3b can be configured to change the speed of mobile sewing needle 2 on above-below direction and horizontal direction, so that sewing needle 2 has sensitiveer three-dimensional motion.

According to the Sewing machines 1 of the first embodiment, the operator of Sewing machines 1 can be by utilizing the operating portion 10 that for example is controlled at the position of close hand for the finger of forefinger when making framework 50 manually grasping and support.In this example, the motion of the sensitivity of sewing needle 2 is easily controlled.Even when the operator use have large diameter when making framework 50, Sewing machines 1 according to the first embodiment also is favourable, because the operator can be controlled near the operating portion 10 that grasps the position of the hand of making framework 50, so that the operator can be with finger tip control operation section 10.Therefore, when processing on workpiece 100 during sewings, the operator can be more delicately and is easily controlled the motion of sewing needle 2, the sewings that need design with machining.

Operating portion 10 according to the first embodiment can be selected between the structure at top or the structure at sidepiece at operating surface 41a according to operator's operation simplification to the attached structure of making framework 50.The operator can be attached to operating portion 10 with the structure of selecting based on the simplification of operation and make on the framework 50.By selecting operating surface 41a that attached structure makes operating portion 10 near the finger tip that is used for operation, become easier by with the hands grasping the operation of making framework 50 and utilizing operator's processing of the motion of finger tip control sewing needle 2 to have the sewings of minor variations.

Adopt the variable resistance type switch be used for console switch 20 for low-cost, to provide the sensible motion (sewing needle 2 make width) of sewing needle 2 in the continually varying mode be favourable

Below explanation is according to the Sewing machines 1 of the second embodiment.Fig. 7 is the stereogram according to the operating portion 10 of the second embodiment.

As shown in Figure 7, except operating portion 10 by resin with make framework 50 forms, the structure of the second embodiment is similar to the structure of the first embodiment.Below the difference of main explanation the second embodiment and the first embodiment.

Operating portion 10 according to the second embodiment forms with the inner frame 51 of making framework 50, and operating portion 10 radially stretches out from the outer circumferential side of inner frame 51.The console switch 20 of operating portion 10 is arranged on the surface of far-end of the part of stretching out from inner frame 51.Be used for being connected electrically to one of them sidepiece that exterior strands H1 on the main body 1a of Sewing machines 1 is connected to the part of stretching out from inner frame 51.

According to the structure according to the second embodiment, because operating portion 10 forms with the inner frame 51 of making framework 50, it no longer is essential therefore being provided for operating portion 10 is attached to the attachment member 60 of making on the framework 50 among the first embodiment.Therefore, can simplify the structure of making the framework periphery, can reduce the cost that this structure is provided, and can improve the operation simplification of processing sewings by the mobile operator who makes framework 50.

Below explanation is according to the Sewing machines 1 of the 3rd embodiment.Fig. 8 is that explanation is according to the stereogram of the feature of the operating portion 10 of the 3rd embodiment.Fig. 9 is the diagram of the basic element of character that the clip structure that is exaggerated of the maintaining part 80 shown in Fig. 8 is shown.

As shown in Figure 8, except the maintaining part 80 that becomes clip structure was fixed to difference on the side of operating portion 10, the structure of the 3rd embodiment was similar to the structure of the first embodiment.Below the difference of main explanation the 3rd embodiment and the first embodiment.

Be removably attached to by the clip structure as maintaining part 80 according to the operating portion 10 of the 3rd embodiment and make on the framework 50, thereby keep in simple operation the workpiece 100 processed during toward workpiece 100 processing sewings the operator.

Maintaining part 80 is arranged on the surface, and this surface is for example on the side as the first housing 31 of a member of the housing 30 that consists of operating portion 10, as shown in Figure 8.Particularly, maintaining part 80 is arranged on the surface with the Surface Vertical of setting operation switch 20.

Maintaining part 80 comprises the first plate 81, the second plate 82 and the biasing member 83 as major part.The first plate 81 has and is positioned near the first end 81a of the first plate 81 and the pivot 81c of the second end 81b position in the middle, and the first plate 81 rotates centered by pivot 81c.The second plate 82 is configured to workpiece 100 be remained between the second plate 82 and the first plate 81 at first end 81a place.Biasing member 83 for example is torque spring, is used for the direction along the second plate 82---namely, and the first end 81a of the counter clockwise direction among Fig. 9---bias voltage the first plate 81.According to the 3rd embodiment, a surface of the first housing 31 (for example, the surface on the described side) is as the second plate 82, as shown in Figure 8.

When the operator with the second end 81b of the first plate 81 when the direction of the first housing 31 is pressed, the first plate 81 rotates along the clockwise direction among Fig. 9 centered by pivot 81c, namely along the first end 81a and the first housing 31(the second plate 82 of maintaining part 80) thus the direction rotation that between first end 81a and the first housing 31, limits the space separated.When inserting workpiece 100 in the above-mentioned space and remove pressure at the second end 81b place, the first end 81a of the first plate 81 turns back to initial position by the biasing force of biasing member 83, i.e. position shown in Fig. 9.As mentioned above, by simple structure and operation, operating portion 10 can easily be remained on the workpiece 100.

According to the structure of the 3rd embodiment so that when (for example processing sewings by direct making on the framework 50 holding workpieces 100 dealing workpiece 100 with hand rather than utilization, embroidery) time, the operator can remain on operating portion 10 near the position that grasps the hand of workpiece 100.In this case, when using the position of hand travelling workpiece 100, operating portion 10 is mobile with the workpiece 100 that is moved.In other words, operating portion is all the time near the hand location, in order to easily and delicately control the motion of sewing needle 2.

Below explanation is according to the Sewing machines 1 of the 4th embodiment.Figure 10 is that explanation is according to the diagram of the operating portion 10 in the inside that is included in the upper shell 91 that is used as tread portion of the 4th embodiment.Figure 11 is the in-built sectional view that illustrates according to the operating portion 10 of the 4th embodiment.

Except operating portion 10 is structured as for the difference with the foot controller 90 of pedal control device operation Sewing machines 1, the structure of the 4th embodiment is similar to the structure of the first embodiment.Below the difference of main explanation the 4th embodiment and the first embodiment.

According to the 4th embodiment, pull down from making framework 50 being removably attached to the operating portion as shown in Figure 1 10 of making on the framework 50.The 4th embodiment is characterised in that, the operator can be used as the upper shell 91(tread portion that is in detachable state that pedal operates) be arranged on the surface of console switch 20, so that the amount that the quantitative change of being pressed by operator's pin becomes console switch 20 to be pressed.

Foot controller 90 comprises the upper shell 91(tread portion as major part) and for the lower house 95 that holds operating portion 10, upper shell 91 has for the operator tramples superincumbent surperficial 92a, and operating portion 10 is arranged in the upset face place of surperficial 92a of upper shell 91 and the amount of being pressed by the underfooting according to upper shell 91 operates.

Upper shell 91 comprises having the 3rd plate 92 and the first periphery wall 93 from the peripheral part of the 3rd plate 92 to downward-extension of trampling superincumbent surperficial 92a for the operator.Upper shell 91 is the forms with box of lower openings.An end of upper shell 91 is supported rotationally by lower house 95, so that upper shell 91 rotates with respect to lower house 95.Upper shell 91 is configured to when the operator steps on surperficial 92a lower house 95 is contained in inside.On the opposed surface 92b as the upset face of the surperficial 92a of the 3rd plate 92, be provided with protuberance 92c so that the console switch 20 of press operating part 10.Protuberance 92c is arranged to the other end 92d near upper shell 91, namely near the free end relative with the end of being supported rotationally by lower house 95.Protuberance 92c is provided for more easily pressing operation switch 20.

Lower house 95 comprise provide the bottom the 4th plate 96 and from upwardly extending the second periphery wall 97 of the peripheral part of the 4th plate 96.Lower house 95 is forms of the box of upper opening.An end of lower house 95 is supported upper shell 91 rotationally.Lower house 95 is configured to be surrounded by upper shell 91 when the operator steps on surperficial 92a.In the inside of lower house 95, lower house 95 is provided with the open space 95a of placement operations section 10, and the align member 95b that is used for the position of maintenance operating portion 10 is arranged in open space 95a.

Along opening under the state that direction rotates operating portion 10 is inserted in the lower houses 95 with respect to lower house 95 at upper shell 91, then upper shell 91 is rotated so that operating portion 10 is contained in the foot controller 90 along closing direction.Operating portion 10 is located so that protuberance 92c operating of contacts switch 20.

As seeing from above, when being arranged to be configured to trample superincumbent upper shell 91(tread portion by the operator from making the operating portion 10 of making on the framework 50 that is removably attached to that framework 50 pulls down) be positioned at the surface of console switch 20 with detachable state, then the operator can be according to upper shell 91(tread portion) amount of being pressed by the underfooting comes operating operation switch 20.In this example, the operator can be according to the easiness choice for use of the operation operating portion 10 as the foot controller 90 that will be controlled by pin.

Claims

1. a Sewing machines (1), described Sewing machines (1) are used for processing sewings by manually the workpiece (100) on the base portion (1b) being moved to desired location by the operator at described workpiece (100), and described Sewing machines (1) comprising:

Sewing needle (2), described sewing needle (2) described workpiece (100) the processing sewings on described base portion (1b);

Activate the drive source (3,3a, 3b) of described sewing needle (2);

Control the control part (4) of described drive source (3,3a, 3b); And

Operating portion (10), described operating portion (10) are connected electrically to described control part (4) and operate changeably described sewing needle (2),

Described operating portion (10) is configured to be attached on the periphery (50a) of frame section (50), so that described workpiece (100) is in tensioning state.

2. Sewing machines according to claim 1 (1), wherein, between described operating portion (10) and described frame section (50), be furnished with attachment part (63), so that the operator is with respect to the direction of change operation surface (20a, 41a) to and fro between vertical direction and horizontal direction of the described frame section (50) on the described base portion (1b).

3. Sewing machines according to claim 1 and 2 (1), wherein, described operating portion (10) is equipped with variable resistance type console switch (20).

4. Sewing machines according to claim 1 and 2 (1), wherein, described operating portion (10) is equipped with the maintaining part (80) of the clip-type that is configured to the object that is kept for keeping, and described operating portion (10) be configured to by described maintaining part (80) and the object that keeps attached with separate.

5. Sewing machines according to claim 4 (1), wherein, described operating portion (10) is equipped with the described maintaining part (80) that is configured to directly keep the clip-type of described workpiece (100).

6. Sewing machines according to claim 1 and 2 (1), wherein, the described operating portion (10) of separating from described frame section (50) is configured to be placed in the tread portion (91), described tread portion (91) is provided for carrying out operated by foot by the operator, to control changeably the motion of described sewing needle (2) according to operator's operated by foot amount.