EP2540894A1 - Hand controller unit, and sewing machine with embroidery function having hand controller unit - Google Patents
Hand controller unit, and sewing machine with embroidery function having hand controller unit Download PDFInfo
- Publication number
- EP2540894A1 EP2540894A1 EP12173678A EP12173678A EP2540894A1 EP 2540894 A1 EP2540894 A1 EP 2540894A1 EP 12173678 A EP12173678 A EP 12173678A EP 12173678 A EP12173678 A EP 12173678A EP 2540894 A1 EP2540894 A1 EP 2540894A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hand controller
- sewing machine
- embroidery
- controller unit
- unit
- 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.)
- Granted
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Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B19/00—Programme-controlled sewing machines
- D05B19/02—Sewing machines having electronic memory or microprocessor control unit
- D05B19/12—Sewing machines having electronic memory or microprocessor control unit characterised by control of operation of machine
- D05B19/14—Control of needle movement, e.g. varying amplitude or period of needle movement
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B39/00—Workpiece carriers
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
- D05C11/02—Machine needles
- D05C11/06—Needle-driving or control mechanisms
Definitions
- an operator of the sewing machine manipulates an embroidery frame in a state where the hand controller is fixedly fitted around the finger, and thus it may be difficult for the operator to manipulate the embroidery frame as the operator moves the finger on which the hand controller is fitted or a thumb used for operating the hand controller. Accordingly, it may be difficult for the operator to slightly and finely move an object on which embroidery is performed, and at the same time to operate the hand controller.
- an operator operates the hand controller with one hand, and thus it may be difficult for the operator to hold an object on which embroidery is performed with both hands. Accordingly, it may be difficult for the operator to slightly and finely move the object on which embroidery is performed.
- a hand controller unit attached to an embroidery frame and changing a stitch width or a sewing speed while a sewing machine is being operated includes a controller position setting unit which is movable relative to the embroidery frame and is configured to be fixed at a desired position.
- the operator may hold the embroidery frame with both hands while performing embroidery work, which makes it easy for the operator to move the embroidery frame slightly and finely.
- the hand controller unit is movable on the embroidery frame and is configured to be fixed at a desired position. Accordingly, when the operator changes a portion and/or an orientation of the embroidery in the embroidery frame, the operator may slide and move the hand controller unit to a desired position that facilitates the operation of the hand controller unit, and may fix the hand controller unit again at the desired position.
- the hand controller unit includes the ball bearings, and thus the hand controller unit moves smoothly on the embroidery frame.
- the controller position setting unit includes a cam configured to fix the hand controller unit on the embroidery frame and an operation lever for causing the cam to engage with and disengage from the embroidery frame.
- the controller position setting unit includes the operation lever and the cam. Accordingly, operability for attaching and removing the hand controller unit to and from the embroidery frame is more improved.
- the hand controller unit includes a hand controller provided with an operation switch that is manually operable by the operator at hand and includes an attachment member provided with the controller position setting unit.
- the hand controller unit includes a switch position selection unit for changing an attachment posture of the hand controller to the attachment member.
- the hand controller unit includes the switch position selection unit for changing the attachment posture of the hand controller to the attachment member. Accordingly, an attachment posture of the operation switch on the attachment member may be adjusted depending on a length of the finger and/or a range of movement of the finger of the operator so that a position, a height and/or an angle of the operation switch facilitates the operation.
- Fig. 1 is a perspective view explaining a state where an embroidery frame and a hand controller unit of an embodiment disclosed here are attached to a sewing machine with an embroidery function;
- Fig. 2 is a perspective view explaining an embroidery frame unit of the embodiment, which is illustrated in Fig. 1 ;
- Fig. 3A is an explanatory exploded view illustrating an entire attachment member of a hand controller unit of the embodiment
- Fig. 3B is a cross sectional-view explaining an accommodation portion of the embodiment
- Fig. 4A is a view explaining a selection lever of the embodiment, which is illustrated in Fig. 3A , in a slidable position;
- Fig. 4B is a view explaining the selection lever in a fixed position.
- a sewing machine 1 with an embroidery function (hereinafter also referred to as the sewing machine 1) is provided with an extension table 3 (i.e., a table) positioned at a lower left portion of the sewing machine 1 when viewed in Fig. 1 and is provided with an embroidery frame unit 10 arranged on the extension table 3.
- the embroidery frame unit 10 is arranged to be movable on the extension table 3 by an operator of the sewing machine 1 while embroidery work is performed, and to be removable from the extension table 3 after completion of the embroidery work.
- a harness 5, which is disposed between a hand controller unit 20 and the sewing machine 1 and which transmits operation signals from the hand controller unit 20 to the sewing machine 1, is connected to the hand controller unit 20 via a connector 7 and to the sewing machine 1 via another connector 7.
- a hand controller 21 is arranged in a lateral orientation so that a direction in which an operation switch 23 is operated corresponds to a horizontal direction, however, the hand controller 21 may be arranged in a vertical orientation so that the direction in which the operation switch 23 is operated corresponds to a vertical direction.
- the harness 5 is routed to be arranged in front of the sewing machine 1 and is connected to the sewing machine 1, that is, the harness 5 is arranged between the sewing machine 1 and the operator, and is connected to the sewing machine 1.
- the harness 5 may be routed to be arranged behind the sewing machine 1 in a manner that the harness 5 is held by an under surface of the extension table 3 and may be connected to the sewing machine 1.
- the harness 5 is connected via the corresponding connector 7 to the hand controller 21 and to the sewing machine 1, however, the harness 5 may be directly connected to the hand controller 21 and to the sewing machine 1 without using the connectors 7.
- the extension table 3 is employed in Fig. 1 , however, a normal table may be employed instead of the extension table 3.
- the terms "upper”, “under”, “front” and “rear”, and derivatives thereof are used based on the sewing machine 1, unless otherwise specified.
- an embroidery frame unit 10 includes the hand controller unit 20 which is slidably (movably) provided at a rail 13 provided on an embroidery frame 11.
- the hand controller unit 20 is made of resin having a high slidability, including, for example, polyacetal
- the embroidery frame 11 is made of resin having a high slidability, including, for example, polyphenylene ether
- the embroidery frame 11 includes an inner frame 12 and an outer frame 15.
- the rail 13 is provided on an upper portion of the inner frame 12.
- the outer frame 15 and the inner frame 12 are configured to clamp therebetween a fabric 19.
- the outer frame 15 includes a screw hole 17 provided at an outer periphery of the outer frame 15 at two positions at both circumferential sides relative to a joint portion 16 of the outer frame 15.
- a fixing finger screw 18 for opening/closing the joint portion 16 of the outer frame 15, is configured to be screwed into each screw hole 17.
- the hand controller unit 20 includes an attachment member 30 made of resin having a high slidability, including, for example, polyacetal.
- the attachment member 30 is slidable on the rail 13 and is configured to be fixed at a desired position on the rail 13.
- the hand controller unit 20 further includes the hand controller 21 for operating the sewing machine 1 to start/stop sewing, and for adjusting a stitch width, that is, an amount of a lateral movement of a needle, of the sewing machine 1.
- the attachment member 30 includes an under surface 31 for sliding on the rail 13 that has an approximate width of 23 millimeter, and a rail-holding hook 32, for example, plural rail-holding hooks 32, holding an under surface of the rail 13 in a manner that a minor clearance which is sufficient to restricts each rail-holding hook 32 from coming off the rail 13 is provided between the rail-holding hook 32 and the under surface of the rail 13.
- a rail-holding hook 32 slides on the under surface of the rail 13 while being in contact with the under surface of the rail 13.
- Each rail-holding hook 32 has an approximate width of 5 millimeters in a radial direction of the embroidery frame 11, an approximate length of 5 millimeters in a circumferential direction of the embroidery frame 11 and an approximate pitch of 19 millimeters between the adjacent rail-holding hooks 32 facing each other in the radial direction of the embroidery frame 11.
- the attachment member 30 further includes a hand controller-fixing tab 33, for example, plural hand controller-fixing tabs 33, provided on a side surface of the attachment member 30.
- Each hand control ler-fixing tab 33 is configured to be inserted into and fixed at an attachment hole 22 provided at the hand controller 21, and to come off the attachment hole 22.
- the hand controller 21 includes the operation switch 23 and the attachment hole 22, for example, plural attachment holes 22, into which the hand controller-fixing tab 33 is configured to be inserted and fixed thereat.
- the hand controller-fixing tabs 33 and the attachment holes 22 constitute a switch position selection unit where combinations of the hand cantrollar-fixing tabs 33 and the attachment holes 22 into which the hand controller-fxing tabs 33 are inserted are selectively changeable, and thus an attachment posture of the hand controller 21 to the attachment member 30 is changeable.
- the operation switch 23 is provided with a variable resistance 24, including, for example, a potentiometer which transmits an amount of operation to the sewing machine 1.
- the four ball bearings 39 are covered with a cover 40 in a manner that the four ball bearings 39 are sandwiched between the base 34 and the cover 40, and the base 34 and the cover 40 are fastened to each other by means of a screw 43, for example, two screws 43. Further, a rotation axis hole 52 of a selection lever 51 (i.e., operation lever) is fitted in a recessed portion 41 of the cover 40, and the selection lever 51 is rotatably mounted on the cover 40 by means of a lever pin 53.
- a selection lever 51 i.e., operation lever
- each accommodation portion 35 includes an opening portion 36, for example, four opening portions 36.
- Each opening portions 36 is formed in a manner that the corresponding ball bearing 39 rolls while part of each ball bearing 39 is in contact with the rail 13 (that is, an upper surface of the embroidery frame 11) and in a manner that the ball bearing 39 does not come off the attachment member 30 in a state where the hand controller unit 20 is attached to the rail 13.
- the opening portions 36 are provided with a pitch, in the radial direction of the embroidery frame 11, which restricts the ball bearings 39 from being in contact with the rack 14 provided at the center portion of the rail 13 and with a pitch, in the circumferential direction of the embroidery frame 11, which allows each ball bearing 39 to move on the rail 13 smoothly without rattling.
- a bearing-retaining boss 42 for example, four bearing-retaining bosses 42, are provided at an under surface of the cover 40 so that each ball bearing 39 is in contact with the rail 13 and with the under surface of the cover 40 (that is, an upper surface of the accommodation portion 35) when the ball bearing 39 rolls while the part of the ball bearing 39 is in contact with the rail 13.
- a slide-side locking tab 37 and a fix-side locking tab 38 both of which include flexibility are provided at an upper surface of the base 34.
- the selection lever 51 is engagable at the slide-side locking tab 37 when the selection lever 51 is at a slidable position after rotation, and the selection lever 51 is disengageable from the slide-side locking tab 37 before rotating toward the fixed position.
- the selection lever 51 is engagable at the fix-side locking tab 38 when being at a fixed position after rotation, and the selection lever 51 is disengageable from the fix-side locking tab 38 before rotating toward the slidable position.
- Each ball bearing 39 may be made of resin having a high slidability, including, for example, polyamide.
- the selection lever 51 includes a handle 54 and a cam 55.
- the handle 54 is for the operator to rotate the selection lever 51 so that the hand controller unit 20 is slidable on the rail 13 or is fixed at the rail 13.
- the cam 55 causes the hand controller unit 20 to be floated off the rail 13. That is, an under surface of the base 34 is floated off an upper surface of the rail 13.
- the cam 55 is formed with a protruding portion that performs spring properties by being flexed by approximately 1 millimeter in a height direction of the cam 55 when viewed in Figs. 4A and 4B in a case where the hand controller unit 20 floats off the rail 13.
- the selection lever 51 is made of resin including, for example, polyacetal that is hard to crack even under repeated stress that is generated when the cam 55 performs the spring properties.
- the handle 54 and the cam 55 are integrally formed with each other.
- the selection lever 51 and the cam 55 constitute the controller position setting unit 50.
- the operator is positioned in front of the sewing machine 1.
- the selection lever 51 is rotated to the slidable position and is engaged or locked at the slide-side locking tab 37 as illustrated in Fig. 4A .
- the rail 13 is brought to engage at the rail-holding hooks 32 so that the hand controller unit 20 is arranged at the rail 13.
- the neck portion 13a is provided at one position, however, the number of the neck portion 13a is not limited thereto.
- the fabric 19 on which the embroidery work is to be performed is clamped between the inner frame 12 of the embroidery frame 11 and the outer frame 15 of the embroidery frame 11.
- the fixing finger screw 18 is screwed into the screw holes 17 provided at two positions at the outer frame 15 and the joint portion 16 of the outer frame 15 is tightened so that the outer frame 15 is tightened around the inner frame 12 while the fabric 19 on which the embroidery work is to be performed is stretched.
- the embroidery frame unit 10, which is set and assembled in the above-described manner, is placed on the extension table 3 in a manner that the hand controller unit 20 is positioned at a side that corresponds to the operator's left hand. The operator holds the embroidery frame 11 with the operator's both hands while holding the hand controller unit 20, together with the embroidery frame 11, with the left hand.
- the operation switch 23 is operated with the left hand of the operator, however, the hand controller 21 may be attached to the attachment member 30 so that the operation switch 23 is operated with the right hand.
- the hand controller unit 20 is configured to be fixed at the rail 13 by using the sliding resistance, however, the configuration is not limited thereto.
- An end portion of the cam 55 may be configured to fit in the rack 14 provided at the center portion of the rail 13, so that the operator obtains a click feeding during movement of the hand controller unit 20 and so that the hand controller unit 20 returns to an original position more precisely in a case where the operator moves the hand controller unit 20 back to the original position.
- the selection lever 51 is rotated to the slidable position and is engaged or locked at the slide-side locking tab 37 as illustrated in Fig, 4A
- the hand controller unit 20 which is slidable on the rail 13 is moved to a desired position.
- the selection lever 51 is rotated to the fixed position and is engaged or locked at the fix-side locking tab 38 as illustrated in Fig. 4B .
- the hand controller unit 20 is fixed at the rail 13 and the operator may restart the embroidery work.
- the operator may slide and move the hand controller unit 20 to a desired position that facilitates the operation of the hand controller unit 20, and may fix the hand controller unit 20 again at the desired position.
- the hand controller unit 20 includes the ball bearings 39. Accordingly, the hand controller unit 20 moves smoothly on the embroidery frame unit 10.
- the controller position setting unit 50 includes the selection lever 51 and the cam 55. Accordingly, operability for engaging and disengaging the hand controller unit 20 at and from the rail 13 is more improved. For example, the cam 55 comes to be engaged at and disengaged from the rail 13 by rotating the selection lever 51.
- the sewing machine 1 with the embroidery function of the aforementioned embodiment includes the attachment hole 22 (i.e., the switch position selection unit) and the hand controller-fixing tab 33 (i.e., the switch position selection unit) both of which are for changing the attachment posture of the hand controller 21 to the attachment member 30. Accordingly, the attachment posture of the operation switch 23 on the attachment member 30 may be adjusted depending on the length of the finger and/or the range of the movement of the finger of the operator so that the position, a height and/or the angle of the operation switch 23 facilitate the operation.
Abstract
Description
- This disclosure generally relates to a hand controller unit, and a sewing machine with an embroidery function having the hand controller unit.
- A known operation switch for a sewing machine (a hand controller) is disclosed in
JP2002-28390A Patent reference 1 is provided with a base portion including a switch portion (an operation switch) for operating an operation of a sewing machine (a sewing machine with an embroidery function) and is provided with a pair of arm portions. Base end portions of the pair of arm portions are connected to the base portion, and distal end portions of the pair of arm portions face each other while allowing a cut-out therebetween. Thus, the pair of arm portions define, at an inner surface side thereof, a finger insertion hole which is configured so that a finger of a person is inserted, The switch portion includes a transmission unit for transmitting radio waves to be received by the machine. - A known sewing machine (a sewing machine provided with an embroidery function) having an automatic operation function of a finger-type controller is disclosed in JPH06-292788A (hereinafter referred to as Patent reference 2). According to the known sewing machine disclosed in the Patent reference 2, a sewing machine frame is provided with the finger-type controller (a hand controller), a sewing machine motor, an identical-speed detecting means, a starting operation means, a speed memory means and an automatic operation command means, a releasing means and a central processing unit controlling the finger-type controller, the sewing machine motor, the identical-speed detecting means, the starting operation means, the speed memory means and the automatic operation command means, the releasing means. The starting operation means and the releasing means are operated via an operation of the finger-type controller,
- According to the sewing machine disposed in the
Patent reference 1 an operator of the sewing machine manipulates an embroidery frame in a state where the hand controller is fixedly fitted around the finger, and thus it may be difficult for the operator to manipulate the embroidery frame as the operator moves the finger on which the hand controller is fitted or a thumb used for operating the hand controller. Accordingly, it may be difficult for the operator to slightly and finely move an object on which embroidery is performed, and at the same time to operate the hand controller. - According to the sewing machine disclosed in the Patent reference 2, an operator operates the hand controller with one hand, and thus it may be difficult for the operator to hold an object on which embroidery is performed with both hands. Accordingly, it may be difficult for the operator to slightly and finely move the object on which embroidery is performed.
- A need thus exists for a hand controller unit allowing an object on which embroidery is performed to be held with both hands of an operator and to be moved slightly and finely while the hand controller is operated manually at hand during operation of a sewing machine, and for a sewing machine with an embroidery function having the hand controller unit, which allows the object on which embroidery is performed to be held with both hands and to be moved slightly and finely while the hand controller is operated.
- According to an aspect of this disclosure, a hand controller unit attached to an embroidery frame and changing a stitch width or a sewing speed while a sewing machine is being operated includes a controller position setting unit which is movable relative to the embroidery frame and is configured to be fixed at a desired position.
- According to another aspect of this disclosure, a sewing machine with an embroidery function includes an embroidery frame unit including an embroidery frame manipulated on a table on which an embroidery work is performed and a hand controller unit manually operable by an operator of the sewing machine at hand, wherein the hand controller unit includes a controller position setting unit which is movable on the embroidery frame and is configured to be fixed at a desired position.
- According to the above described structure, the operator may hold the hand controller unit together with the embroidery frame with a palm and/or fingers of the operator, which makes operation of the hand controller unit easier.
- Further, the operator may hold the embroidery frame with both hands while performing embroidery work, which makes it easy for the operator to move the embroidery frame slightly and finely.
- Further, due to the controller position setting unit, the hand controller unit is movable on the embroidery frame and is configured to be fixed at a desired position. Accordingly, when the operator changes a portion and/or an orientation of the embroidery in the embroidery frame, the operator may slide and move the hand controller unit to a desired position that facilitates the operation of the hand controller unit, and may fix the hand controller unit again at the desired position.
- According to a further aspect of this disclosure, the hand controller unit includes a ball bearing being in contact with an upper surface of the embroidery frame.
- According to the above described structure, the hand controller unit includes the ball bearings, and thus the hand controller unit moves smoothly on the embroidery frame.
- According to a further aspect of this disclosure, the controller position setting unit includes a cam configured to fix the hand controller unit on the embroidery frame and an operation lever for causing the cam to engage with and disengage from the embroidery frame.
- According to the above described structure, the controller position setting unit includes the operation lever and the cam. Accordingly, operability for attaching and removing the hand controller unit to and from the embroidery frame is more improved.
- According to a further aspect of this disclosure, the hand controller unit includes a hand controller provided with an operation switch that is manually operable by the operator at hand and includes an attachment member provided with the controller position setting unit.
- According to a further aspect of this disclosure, the hand controller unit includes a switch position selection unit for changing an attachment posture of the hand controller to the attachment member.
- According to the above described structure, the hand controller unit includes the switch position selection unit for changing the attachment posture of the hand controller to the attachment member. Accordingly, an attachment posture of the operation switch on the attachment member may be adjusted depending on a length of the finger and/or a range of movement of the finger of the operator so that a position, a height and/or an angle of the operation switch facilitates the operation.
- The foregoing and additional features and characteristics of this disclosure will become more apparent from the following detailed description considered with the reference to the accompanying drawings, wherein:
-
Fig. 1 is a perspective view explaining a state where an embroidery frame and a hand controller unit of an embodiment disclosed here are attached to a sewing machine with an embroidery function; -
Fig. 2 is a perspective view explaining an embroidery frame unit of the embodiment, which is illustrated inFig. 1 ; -
Fig. 3A is an explanatory exploded view illustrating an entire attachment member of a hand controller unit of the embodiment; -
Fig. 3B is a cross sectional-view explaining an accommodation portion of the embodiment; -
Fig. 4A is a view explaining a selection lever of the embodiment, which is illustrated inFig. 3A , in a slidable position; and -
Fig. 4B is a view explaining the selection lever in a fixed position. - An embodiment of this disclosure will be explained hereunder with reference to
Figs. 1 to 4B . - As illustrated in
Fig. 1 , asewing machine 1 with an embroidery function (hereinafter also referred to as the sewing machine 1) is provided with an extension table 3 (i.e., a table) positioned at a lower left portion of thesewing machine 1 when viewed inFig. 1 and is provided with anembroidery frame unit 10 arranged on the extension table 3. Theembroidery frame unit 10 is arranged to be movable on the extension table 3 by an operator of thesewing machine 1 while embroidery work is performed, and to be removable from the extension table 3 after completion of the embroidery work. Aharness 5, which is disposed between ahand controller unit 20 and thesewing machine 1 and which transmits operation signals from thehand controller unit 20 to thesewing machine 1, is connected to thehand controller unit 20 via aconnector 7 and to thesewing machine 1 via anotherconnector 7. InFig. 1 , ahand controller 21 is arranged in a lateral orientation so that a direction in which anoperation switch 23 is operated corresponds to a horizontal direction, however, thehand controller 21 may be arranged in a vertical orientation so that the direction in which theoperation switch 23 is operated corresponds to a vertical direction. Further, inFig. 1 , theharness 5 is routed to be arranged in front of thesewing machine 1 and is connected to thesewing machine 1, that is, theharness 5 is arranged between thesewing machine 1 and the operator, and is connected to thesewing machine 1. However, theharness 5 may be routed to be arranged behind thesewing machine 1 in a manner that theharness 5 is held by an under surface of the extension table 3 and may be connected to thesewing machine 1. Further, inFig. 1 , theharness 5 is connected via thecorresponding connector 7 to thehand controller 21 and to thesewing machine 1, however, theharness 5 may be directly connected to thehand controller 21 and to thesewing machine 1 without using theconnectors 7. Further, the extension table 3 is employed inFig. 1 , however, a normal table may be employed instead of the extension table 3. In the embodiment, the terms "upper", "under", "front" and "rear", and derivatives thereof are used based on thesewing machine 1, unless otherwise specified. - As illustrated in
Fig. 2 , anembroidery frame unit 10 includes thehand controller unit 20 which is slidably (movably) provided at arail 13 provided on anembroidery frame 11. Thehand controller unit 20 is made of resin having a high slidability, including, for example, polyacetal, and theembroidery frame 11 is made of resin having a high slidability, including, for example, polyphenylene ether, Theembroidery frame 11 includes aninner frame 12 and anouter frame 15. Therail 13 is provided on an upper portion of theinner frame 12. Theouter frame 15 and theinner frame 12 are configured to clamp therebetween afabric 19. Theouter frame 15 includes ascrew hole 17 provided at an outer periphery of theouter frame 15 at two positions at both circumferential sides relative to ajoint portion 16 of theouter frame 15. Afixing finger screw 18 for opening/closing thejoint portion 16 of theouter frame 15, is configured to be screwed into eachscrew hole 17. Thehand controller unit 20 includes anattachment member 30 made of resin having a high slidability, including, for example, polyacetal. Theattachment member 30 is slidable on therail 13 and is configured to be fixed at a desired position on therail 13. Thehand controller unit 20 further includes thehand controller 21 for operating thesewing machine 1 to start/stop sewing, and for adjusting a stitch width, that is, an amount of a lateral movement of a needle, of thesewing machine 1. - The
attachment member 30 includes an undersurface 31 for sliding on therail 13 that has an approximate width of 23 millimeter, and a rail-holding hook 32, for example, plural rail-holding hooks 32, holding an under surface of therail 13 in a manner that a minor clearance which is sufficient to restricts each rail-holding hook 32 from coming off therail 13 is provided between the rail-holding hook 32 and the under surface of therail 13. Each rail-holdinghook 32 slides on the under surface of therail 13 while being in contact with the under surface of therail 13. Each rail-holdinghook 32 has an approximate width of 5 millimeters in a radial direction of theembroidery frame 11, an approximate length of 5 millimeters in a circumferential direction of theembroidery frame 11 and an approximate pitch of 19 millimeters between the adjacent rail-holdinghooks 32 facing each other in the radial direction of theembroidery frame 11. Theattachment member 30 further includes a hand controller-fixingtab 33, for example, plural hand controller-fixingtabs 33, provided on a side surface of theattachment member 30. Each hand control ler-fixingtab 33 is configured to be inserted into and fixed at anattachment hole 22 provided at thehand controller 21, and to come off theattachment hole 22. Thehand controller 21 includes theoperation switch 23 and theattachment hole 22, for example, plural attachment holes 22, into which the hand controller-fixingtab 33 is configured to be inserted and fixed thereat. The hand controller-fixingtabs 33 and the attachment holes 22 constitute a switch position selection unit where combinations of the hand cantrollar-fixingtabs 33 and the attachment holes 22 into which the hand controller-fxing tabs 33 are inserted are selectively changeable, and thus an attachment posture of thehand controller 21 to theattachment member 30 is changeable. Theoperation switch 23 is provided with avariable resistance 24, including, for example, a potentiometer which transmits an amount of operation to thesewing machine 1. In this embodiment, thehand controller 21 is configured to adjust the stitch width, however, thehand controller 21 may be configured to adjust a sewing speed of thesewing machine 1. Further, arack 14, which is for positioning thehand controller 21, may be provided at a center portion of therail 13 in the radial direction of theembroidery frame 11. Further, theattachment member 30 may include a fastening mechanism other than the hand controller-fixingtab 33, including, for example, a screw or a pin, Further, theattachment member 30 and thehand controller 21 may be integrally formed with each other. - As illustrated in
Figs. 3A and 3B , theattachment member 30 accommodates aball bearing 39, for example, fourball bearings 39, each made of metal. More specifically, eachball bearing 39 is accommodated in anaccommodation portion 35 formed at a base 34 which holds therail 13 in an up/down direction, that is, thebase 34 holds therail 13 at upper and lower portions of therail 13, in a manner that theball bearing 39 rolls inside thecorresponding accommodation portion 35. Thebase 34 is made of resin having a high slidability, including, for example, polyacetal. The fourball bearings 39 are covered with acover 40 in a manner that the fourball bearings 39 are sandwiched between the base 34 and thecover 40, and thebase 34 and thecover 40 are fastened to each other by means of ascrew 43, for example, twoscrews 43. Further, arotation axis hole 52 of a selection lever 51 (i.e., operation lever) is fitted in a recessedportion 41 of thecover 40, and theselection lever 51 is rotatably mounted on thecover 40 by means of alever pin 53. - An under surface of each
accommodation portion 35 includes an openingportion 36, for example, four openingportions 36. Each openingportions 36 is formed in a manner that the corresponding ball bearing 39 rolls while part of eachball bearing 39 is in contact with the rail 13 (that is, an upper surface of the embroidery frame 11) and in a manner that theball bearing 39 does not come off theattachment member 30 in a state where thehand controller unit 20 is attached to therail 13. The openingportions 36 are provided with a pitch, in the radial direction of theembroidery frame 11, which restricts theball bearings 39 from being in contact with therack 14 provided at the center portion of therail 13 and with a pitch, in the circumferential direction of theembroidery frame 11, which allows eachball bearing 39 to move on therail 13 smoothly without rattling. Further, a bearing-retainingboss 42, for example, four bearing-retainingbosses 42, are provided at an under surface of thecover 40 so that eachball bearing 39 is in contact with therail 13 and with the under surface of the cover 40 (that is, an upper surface of the accommodation portion 35) when theball bearing 39 rolls while the part of theball bearing 39 is in contact with therail 13. On the other hand, a slide-side locking tab 37 and a fix-side locking tab 38 both of which include flexibility are provided at an upper surface of thebase 34. Theselection lever 51 is engagable at the slide-side locking tab 37 when theselection lever 51 is at a slidable position after rotation, and theselection lever 51 is disengageable from the slide-side locking tab 37 before rotating toward the fixed position. Theselection lever 51 is engagable at the fix-side locking tab 38 when being at a fixed position after rotation, and theselection lever 51 is disengageable from the fix-side locking tab 38 before rotating toward the slidable position. Eachball bearing 39 may be made of resin having a high slidability, including, for example, polyamide. - As illustrated in
Figs. 4A and 4B , theselection lever 51 includes ahandle 54 and acam 55. Thehandle 54 is for the operator to rotate theselection lever 51 so that thehand controller unit 20 is slidable on therail 13 or is fixed at therail 13. When the operator fixes thehand controller unit 20 at therail 13, thecam 55 causes thehand controller unit 20 to be floated off therail 13. That is, an under surface of thebase 34 is floated off an upper surface of therail 13. Thecam 55 is formed with a protruding portion that performs spring properties by being flexed by approximately 1 millimeter in a height direction of thecam 55 when viewed inFigs. 4A and 4B in a case where thehand controller unit 20 floats off therail 13. Theselection lever 51 is made of resin including, for example, polyacetal that is hard to crack even under repeated stress that is generated when thecam 55 performs the spring properties. Thehandle 54 and thecam 55 are integrally formed with each other. Theselection lever 51 and thecam 55 constitute the controllerposition setting unit 50. - An operation of the
sewing machine 1 with the embroidery function, according to the embodiment will be explained hereunder. - In the state illustrated in
Fig. 1 , the operator is positioned in front of thesewing machine 1. In order to perform the embroidery work, in the state illustrated inFig. 1 , theselection lever 51 is rotated to the slidable position and is engaged or locked at the slide-side locking tab 37 as illustrated inFig. 4A . In this state, at aneck portion 13a provided at a predetermined position of therail 13 of theinner frame 12 and having an approximate width of 17 millimeters in the circumferential direction of theembroidery frame 11, therail 13 is brought to engage at the rail-holdinghooks 32 so that thehand controller unit 20 is arranged at therail 13. InFig. 2 , theneck portion 13a is provided at one position, however, the number of theneck portion 13a is not limited thereto. After thehand controller unit 20 is slid on therail 13 to a desired position, theselection lever 51 is rotated to the fixed position and is engaged or locked at the fix-side locking tab 38 as illustrated inFig. 4B , and thus thehand controller unit 20 is fixed at therail 13. At this time, thehand controller unit 20 is lifted up by means of thecam 55 formed at theselection lever 51, and thus therail 13 is sandwiched between each rail-holdinghook 32 formed at a lower portion of thehand controller unit 20 and thecam 55. Accordingly, thehand controller unit 20 is fixed at therail 13 by a sliding resistance generated while therail 13 is sandwiched between the rail-holdinghooks 32 and thecam 55 in the up/down direction. Next, thehand controller 21 is arranged in the vertical orientation as illustrated inFig. 2 . - Next, the
fabric 19 on which the embroidery work is to be performed is clamped between theinner frame 12 of theembroidery frame 11 and theouter frame 15 of theembroidery frame 11. After that, the fixingfinger screw 18 is screwed into the screw holes 17 provided at two positions at theouter frame 15 and thejoint portion 16 of theouter frame 15 is tightened so that theouter frame 15 is tightened around theinner frame 12 while thefabric 19 on which the embroidery work is to be performed is stretched. Theembroidery frame unit 10, which is set and assembled in the above-described manner, is placed on the extension table 3 in a manner that thehand controller unit 20 is positioned at a side that corresponds to the operator's left hand. The operator holds theembroidery frame 11 with the operator's both hands while holding thehand controller unit 20, together with theembroidery frame 11, with the left hand. In addition, the operator places the thumb of the left hand on theoperation switch 23 and manipulates an amount of pressing theoperation switch 23 so as to adjust the stitch width of thesewing machine 1, and at the same time the operator finely adjusts a stitching position, that is, a portion of the fabric at which the embroidery is provided, with both hands. In order to change the posture, a position and/or an angle of thehand controller 21 to theattachment member 30, the combinations of the hand controller-fixingtabs 33 and the attachment holes 22 into which the hand controller-fixingtabs 33 are inserted are changed according to the necessity including, for example, a length of the thumb and/or a range of movement of the thumb of the operator. Further, in a case where the operator grips theembroidery frame 11 firmly by using the thumb while operating theoperation switch 23 with a finger other than the thumb, thehand controller 21 may be attached to theattachment member 30 in the lateral orientation instead of the vertical orientation. - In the embodiment, the
operation switch 23 is operated with the left hand of the operator, however, thehand controller 21 may be attached to theattachment member 30 so that theoperation switch 23 is operated with the right hand. Further, in the embodiment, thehand controller unit 20 is configured to be fixed at therail 13 by using the sliding resistance, however, the configuration is not limited thereto. An end portion of thecam 55 may be configured to fit in therack 14 provided at the center portion of therail 13, so that the operator obtains a click feeding during movement of thehand controller unit 20 and so that thehand controller unit 20 returns to an original position more precisely in a case where the operator moves thehand controller unit 20 back to the original position. - In order to change the portion of the fabric at which the embroidery is provided and/or an orientation of the fabric, in a state illustrated in
Fig. 2 , theselection lever 51 is rotated to the slidable position and is engaged or locked at the slide-side locking tab 37 as illustrated inFig, 4A In this state, thehand controller unit 20 which is slidable on therail 13 is moved to a desired position. After thehand controller unit 20 is slid on therail 13 to the desired position, theselection lever 51 is rotated to the fixed position and is engaged or locked at the fix-side locking tab 38 as illustrated inFig. 4B . Thus, thehand controller unit 20 is fixed at therail 13 and the operator may restart the embroidery work. - Effects and advantages obtained according to the embodiment will be explained hereunder.
- According to the
sewing machine 1 with the embroidery function of the aforementioned embodiment, theembroidery frame unit 10 includes thehand controller unit 20 configured to adjust the stitch width. Accordingly, the operator may hold thehand controller unit 20 together with theembroidery frame 11 with the palm and/or fingers of the operator, which makes the operation of thehand controller unit 20 easier. At the same time, the operator may hold theembroidery frame 11 with both hands while performing the embroidery work, which makes it easy for the operator to move theembroidery frame 11 slightly and finely. Further, due to the controllerposition setting unit 50 provided at theattachment member 30, thehand controller unit 20 is movable on theembroidery frame 11 and is configured to be fixed at a desired position. Accordingly, when the operator changes the portion of the fabric at which the embroidery is provided and/or the orientation of the fabric in theembroidery frame unit 10, the operator may slide and move thehand controller unit 20 to a desired position that facilitates the operation of thehand controller unit 20, and may fix thehand controller unit 20 again at the desired position. - According to the
sewing machine 1 with the embroidery function of the aforementioned embodiment, thehand controller unit 20 includes theball bearings 39. Accordingly, thehand controller unit 20 moves smoothly on theembroidery frame unit 10. - According to the
sewing machine 1 with the embroidery function of the aforementioned embodiment, the controllerposition setting unit 50 includes theselection lever 51 and thecam 55. Accordingly, operability for engaging and disengaging thehand controller unit 20 at and from therail 13 is more improved. For example, thecam 55 comes to be engaged at and disengaged from therail 13 by rotating theselection lever 51. - The
sewing machine 1 with the embroidery function of the aforementioned embodiment includes the attachment hole 22 (i.e., the switch position selection unit) and the hand controller-fixing tab 33 (i.e., the switch position selection unit) both of which are for changing the attachment posture of thehand controller 21 to theattachment member 30. Accordingly, the attachment posture of theoperation switch 23 on theattachment member 30 may be adjusted depending on the length of the finger and/or the range of the movement of the finger of the operator so that the position, a height and/or the angle of theoperation switch 23 facilitate the operation.
Claims (6)
- A hand controller unit (20) attached to an embroidery frame (11) and changing a stitch width or a sewing speed while a sewing machine (1) is being operated, comprising;
a controller position setting unit (50) which is movable relative to the embroidery frame (11) and is configured to be fixed at a desired position. - A sewing machine (1) with an embroidery function, comprising:an embroidery frame unit (10) including an embroidery frame (11) manipulated on a table (3) on which an embroidery work is performed and a hand controller unit (20) manually operable by an operator of the sewing machine (1) at hand, whereinthe hand controller unit (20) includes a controller position setting unit (50) which is movable on the embroidery frame (11) and is configured to be fixed at a desired position.
- The sewing machine (1) with the embroidery function according to claim 2, wherein the hand controller unit (20) includes a ball bearing (39) being in contact with an upper surface of the embroidery frame (11).
- The sewing machine (1) with the embroidery function according to either claim 2 or 3, wherein the controller position setting unit (50) includes a cam (55) configured to fix the hand controller unit (20) on the embroidery frame (11) and an operation lever (51) for causing the cam (55) to engage with and disengage from the embroidery frame (11),
- The sewing machine (1) with the embroidery function according to any one of claims 2 through 4, wherein the hand controller unit (20) includes a hand controller (21) provided with an operation switch (23) that is manually operable by the operator at hand and includes an attachment member (30) provided with the controller position setting unit (50),
- The sewing machine (1) with the embroidery function according to any one of claims 2 through 5, wherein the hand controller unit (20) includes a switch position selection unit (22, 33) for changing an attachment posture of the hand controller (21) to the attachment member (30).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011145344A JP5884315B2 (en) | 2011-06-30 | 2011-06-30 | Sewing machine with embroidery function including hand controller unit and hand controller unit |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2540894A1 true EP2540894A1 (en) | 2013-01-02 |
EP2540894B1 EP2540894B1 (en) | 2014-07-16 |
Family
ID=46331081
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20120173678 Not-in-force EP2540894B1 (en) | 2011-06-30 | 2012-06-26 | Hand controller unit, and sewing machine with embroidery function having hand controller unit |
Country Status (2)
Country | Link |
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EP (1) | EP2540894B1 (en) |
JP (1) | JP5884315B2 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4408242A (en) * | 1980-09-29 | 1983-10-04 | Aisin Seiki Kabushiki Kaisha | Magnetic recording member for automatic embroidering machine |
US4672904A (en) * | 1984-09-17 | 1987-06-16 | Janome Sewing Machine Co., Ltd. | Device for attaching a memory cassette of a computerized sewing machine |
US4932342A (en) * | 1988-08-26 | 1990-06-12 | Janome Sewing Machine Industry Co., Ltd. | Embroidering system |
US6119611A (en) * | 1998-12-17 | 2000-09-19 | Brother Kogyo Kabushiki Kaisha | Sewing machine having nonvolatile and rewritable storing device |
JP2002028390A (en) | 2000-07-14 | 2002-01-29 | Aisin Seiki Co Ltd | Operating switch for sewing machine and sewing machine |
WO2009031780A1 (en) * | 2007-09-04 | 2009-03-12 | Myungwon Seo | Sewing machine |
EP2492386A1 (en) * | 2011-02-24 | 2012-08-29 | Aisin Seiki Kabushiki Kaisha | Sewing machine |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4515080Y1 (en) * | 1967-02-07 | 1970-06-24 | ||
JPS6067785U (en) * | 1983-10-17 | 1985-05-14 | リツカー株式会社 | Starting/stopping device for sewing machine drive motor |
-
2011
- 2011-06-30 JP JP2011145344A patent/JP5884315B2/en not_active Expired - Fee Related
-
2012
- 2012-06-26 EP EP20120173678 patent/EP2540894B1/en not_active Not-in-force
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4408242A (en) * | 1980-09-29 | 1983-10-04 | Aisin Seiki Kabushiki Kaisha | Magnetic recording member for automatic embroidering machine |
US4672904A (en) * | 1984-09-17 | 1987-06-16 | Janome Sewing Machine Co., Ltd. | Device for attaching a memory cassette of a computerized sewing machine |
US4932342A (en) * | 1988-08-26 | 1990-06-12 | Janome Sewing Machine Industry Co., Ltd. | Embroidering system |
US6119611A (en) * | 1998-12-17 | 2000-09-19 | Brother Kogyo Kabushiki Kaisha | Sewing machine having nonvolatile and rewritable storing device |
JP2002028390A (en) | 2000-07-14 | 2002-01-29 | Aisin Seiki Co Ltd | Operating switch for sewing machine and sewing machine |
WO2009031780A1 (en) * | 2007-09-04 | 2009-03-12 | Myungwon Seo | Sewing machine |
EP2492386A1 (en) * | 2011-02-24 | 2012-08-29 | Aisin Seiki Kabushiki Kaisha | Sewing machine |
Also Published As
Publication number | Publication date |
---|---|
JP2013009894A (en) | 2013-01-17 |
EP2540894B1 (en) | 2014-07-16 |
JP5884315B2 (en) | 2016-03-15 |
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