WO2014192108A1 - Needle-handler position adjusting device - Google Patents

Needle-handler position adjusting device Download PDF

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Publication number
WO2014192108A1
WO2014192108A1 PCT/JP2013/064947 JP2013064947W WO2014192108A1 WO 2014192108 A1 WO2014192108 A1 WO 2014192108A1 JP 2013064947 W JP2013064947 W JP 2013064947W WO 2014192108 A1 WO2014192108 A1 WO 2014192108A1
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WO
WIPO (PCT)
Prior art keywords
pin
needle
axis
axial direction
adjusting device
Prior art date
Application number
PCT/JP2013/064947
Other languages
French (fr)
Japanese (ja)
Inventor
中村　潔
潤 畑中
Original Assignee
株式会社広瀬製作所
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社広瀬製作所 filed Critical 株式会社広瀬製作所
Priority to EP13885878.2A priority Critical patent/EP3006616B1/en
Priority to CN201380076935.1A priority patent/CN105247129B/en
Priority to PCT/JP2013/064947 priority patent/WO2014192108A1/en
Priority to JP2015519551A priority patent/JP6343278B2/en
Publication of WO2014192108A1 publication Critical patent/WO2014192108A1/en

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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B57/00—Loop takers, e.g. loopers
    • D05B57/08—Loop takers, e.g. loopers for lock-stitch sewing machines
    • D05B57/10—Shuttles
    • D05B57/14—Shuttles with rotary hooks
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B55/00—Needle holders; Needle bars
    • D05B55/06—Needle guides; Needle protectors
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B69/00—Driving-gear; Control devices

Definitions

  • the present invention relates to a needle shift position adjusting device for adjusting the position of a needle shift plate provided in an outer rotary hook of a horizontal full rotation hook with respect to a sewing needle.
  • FIG. 9 is a cross-sectional view showing a typical prior art needle shift position adjusting device.
  • This prior art is described in, for example, Patent Document 1.
  • This figure shows a part of the side surface viewed from the front side perpendicular to the rotation axis of the outer hook.
  • This prior art needle shift position adjusting device appropriately adjusts the distance between the arc-shaped needle receiving portion 2 which is a needle-slip plate whose base end portion is fixed to the outer hook and the distal end portion 1 is a free end with respect to the sewing needle.
  • the movable pin 3 which is the first pin that supports the distal end 1 of the needle receiving portion 2 with the one end 3a and the other end 3b of the movable pin 3 are arranged on the outer hook.
  • the adjusting screw 5 that is a second pin disposed in a state of being screwed into the screw hole 6 of the outer hook so that the conical end surface of the one end portion 5a contacts the sphere 4.
  • the movable pin 3, the sphere 4, and the adjustment screw 5 are fine metal parts each having a diameter of about 3 mm, and the movement of the adjustment screw 5 in the axial direction due to the screwing and unscrewing of the adjustment screw 5 is performed. Is transmitted to the movable pin 3 disposed in the axial direction orthogonal to the sphere 4 via the spherical body 4, and the distal end portion 1 of the needle receiving portion 2 is perpendicular to the rotation axis of the outer hook by the one end portion 3 a of the movable pin 3. On the imaginary plane, when the outer shuttle rotates, the amount of deflection due to the elastic deformation of the needle receiving portion 2 can be changed by slightly pressing from the inner side of the tangent to the imaginary circle drawn by the tip portion 1.
  • the conventional needle shift position adjusting device transmits the displacement of the adjusting screw 5 to the movable pin 3 through the spherical body 4 by the operation of screwing and unscrewing the adjusting screw 5, and the movable pin 3 is moved to the needle. It is configured to be able to adjust the position of the needle receiving portion 2 with respect to the sewing needle by moving the needle receiving portion 2 in the radial direction by moving the needle receiving portion 2 in a direction approaching and separating from the receiving portion 2. Yes.
  • the movement of the adjustment screw 5 is transmitted to the movable pin 3 via the sphere 4, so that the one end portion 5 a of the adjustment screw 5 and the other end portion 3 b of the movable pin 3 are connected to each other.
  • the spherical body 4 makes point contact, and one end portion 5a of the adjusting screw 5 and the other end portion 3b of the movable pin 3 are deformed or worn at a contact position with the spherical body 4 by long-term use.
  • the adjustment screw 5 is moved in order to adjust the needle moving position in a state where such deformation or wear has occurred, the contact position between the conical end surface of the one end portion 5a of the adjustment screw 5 and the sphere 4 will shift.
  • the spherical body 4 is in contact with the deformed or worn position of the conical end face in the axial direction of the adjusting pin 5 and a different position around the axial line, and the movable pin 3 is raised according to the amount of movement of the adjusting screw 5.
  • the needle position adjusting device of the prior art is composed of the movable pin 3, the sphere 4 and the adjusting screw 5 which are minute parts having a diameter of about 3 mm, the number of parts is large, and when the deformation and wear occur. It takes time and effort to replace the battery, and there is a problem of poor maintainability.
  • An object of the present invention is to provide a needle moving position adjusting device capable of finely adjusting a deflection amount of a needle moving plate with high accuracy and smoothly.
  • Another object of the present invention is to provide a needle position adjusting device that can reduce the number of parts, simplify the configuration, and improve maintainability.
  • the present invention has a sword tip portion that is fixed to a lower shaft that is rotationally driven around a rotation axis parallel to the axis of a needle bar to which a sewing needle is attached, and that has a tapered shape with the tip portion directed downstream in the rotation direction.
  • a needle shifter provided in a horizontal full rotation hook provided with an outer rotary hook provided with a tapered needle shifter plate having a tip portion facing the upstream side in the rotation direction and downstream of the sword tip in the rotation direction.
  • a position adjusting device comprising: A first pin held on the outer hook so as to be displaceable in a first axis direction intersecting a radius line centered on the rotation axis on a virtual one plane perpendicular to the rotation axis; An end surface that supports a tip end portion of the needle moving plate is formed at one end in one axial direction, and a first pin that has a conical first contact surface formed at the other end in the first axial direction; A second pin screwed to the outer hook so as to be displaceable in a second axial direction perpendicular to the first axis, and is disposed at one end of the second axial direction on a first contact surface of the first pin.
  • a tool fitting in which a conical second contact surface is formed and a tool for screwing and unscrewing the second pin in the second axial direction is fitted to the other end in the second axial direction And a second pin provided with a portion.
  • the end surface of the first pin is a plane perpendicular to the first axis.
  • the end surface of the first pin is a curved surface that is convexly curved toward the other end in the first axial direction.
  • the tip portion of the needle moving plate is a curved surface that is convexly curved toward the end surface of the first pin.
  • the outer rotary hook in the horizontal full rotation rotary hook, is fixed to the lower shaft that is rotationally driven around the rotation axis parallel to the axis of the needle bar to which the sewing needle is attached.
  • the outer hook has a sword tip that tapers toward the downstream side in the rotation direction, and the taper is tapered toward the upstream side in the rotation direction on the downstream side in the rotation direction from the sword tip portion.
  • a needle moving plate is disposed. In order to adjust the position of the needle moving plate with respect to the sewing needle, the needle moving plate is displaced in the direction close to or away from the moving path of the sewing needle attached to the needle bar.
  • a needle shift position adjusting device is provided.
  • the needle shift position adjusting device includes a first pin and a second pin.
  • the first pin is held on an outer hook so as to be displaceable in a first axis direction intersecting a radius line centered on the rotation axis on a virtual plane perpendicular to the rotation axis, and is held at one end in the first axis direction.
  • the second pin is screwed to the outer hook so as to be displaceable in the second axial direction orthogonal to the first axis, and has a conical shape that contacts the first contact surface of the first pin at one end in the second axial direction.
  • the second contact surface is formed, and a tool fitting portion to which a tool for screwing and screwing the second pin in the second axial direction is fitted at the other end portion in the second axial direction.
  • the tool when the needle moving plate is moved away from the sewing needle, the tool is fitted to the tool fitting portion of the second pin and operated in the direction in which the second pin is screwed out.
  • the second contact surface of the second pin moves in a direction away from the first contact surface of the first pin, but since the first pin is elastically pressed by the tip of the needle moving plate, The first pin moves in the reverse direction, that is, in the direction close to the second axis, while maintaining the state where the first contact surface is in contact with the second contact surface of the second pin.
  • the movement of the first pin in the direction close to the second axis corresponds to the amount of movement of the second pin in the second axis direction, and is the distance corresponding to the operation amount in the direction of screwing out the second pin.
  • the first pin can be retracted in the first axis direction.
  • the second pin is moved in the first axial direction in accordance with the operation amount of the second pin being screwed or retreated, and the amount of deflection of the needle moving plate can be finely adjusted smoothly with high accuracy.
  • the amount of deflection of the needle moving plate can be changed by the first pin and the second pin without using a sphere as in the prior art, the number of parts can be reduced and the configuration can be simplified. .
  • the parts such as the first pin and the second pin can be easily exchanged, and the maintainability can be improved.
  • the end surface of the first pin is a plane perpendicular to the first axis, it is possible to smoothly move the tip portion of the needle moving plate in contact with the end surface of the first pin. Accordingly, the deflection of the needle moving plate can be smoothly changed according to the movement of the first pin, and the amount of bending of the needle moving plate can be finely adjusted smoothly with higher accuracy.
  • the end surface of the first pin is a curved surface that is convexly curved toward the other end portion in the first axial direction, the tip portion of the needle moving plate is displaced on the end surface of the first pin due to vibration or the like. It is possible to prevent the needle gathering plate from fluctuating undesirably during sewing.
  • the tip portion of the needle moving plate is a curved surface that is convexly curved toward the end surface of the first pin, so that the tip portion of the needle moving plate is in contact with the end surface of the first pin.
  • tip part of a needle gathering board can suppress a shift
  • FIG. 2 is a partial enlarged cross-sectional view of the vicinity of a needle shift position adjusting device of a horizontal full rotation hook as viewed from above in FIG. 1. It is a top view which shows the state in which the inner hook 18 was accommodated in the horizontal full rotation hook shown in FIG. It is a side view of the inner hook 18.
  • FIG. 5 is a cross-sectional view taken along a section line VV in FIG. 3.
  • FIG. 3 is an enlarged cross-sectional view seen from a section line VI-VI in FIG. 2.
  • FIG. 5 is a graph showing the relationship between the movement amount ⁇ y of the second pin 22 and the movement amount ⁇ x of the first pin 21. It is an expanded sectional view which shows the structure of 10 A of needle
  • FIG. 1 is a cross-sectional view of a horizontal full rotation hook 11 provided with a needle shift position adjusting device 10 according to an embodiment of the present invention.
  • FIG. 2 shows the vicinity of the needle shift position adjusting device 10 of the horizontal full rotation hook 11. It is a partial expanded sectional view seen from above.
  • FIG. 3 is a plan view showing a state in which the inner shuttle 18 is accommodated in the horizontal full rotation shuttle 11 shown in FIG. 1,
  • FIG. 4 is a side view of the inner shuttle 18, and FIG. It is sectional drawing seen from -V.
  • the main sewing machine is provided with a needle bar 13 to which the sewing needle 12 is detachably attached, and a lower shaft 14 that is rotationally driven in the rotation direction A around the rotation axis L2 parallel to the axis L1 of the needle bar 13.
  • the lower shaft 14 has a sword tip 15 that tapers toward the downstream side in the rotational direction A, and has a tip portion on the downstream side in the rotational direction A with respect to the sword tip 15 and on the upstream side in the rotational direction A.
  • a horizontal full rotation hook 11 provided with an outer hook 17 on which a needle moving plate 16 that is tapered toward the inner side and an inner hook 18 accommodated in the outer hook 17 are provided.
  • a needle shift position adjusting device 10 according to the embodiment is provided.
  • the needle shift position adjusting device 10 is held on the outer hook 17 so as to be displaceable in the direction of the first axis L11 intersecting with one radial line centered on the rotation axis L2 on a virtual one plane perpendicular to the rotation axis L2.
  • the first pin 21 and the outer pin 17 include a second pin 22 screwed to be displaceable in the direction of the second axis L12 perpendicular to the first axis L11.
  • the second axis L12 of the second pin 22 is on the outer open end side from the first axis L11 on the imaginary plane including the rotation axis L2 of the outer hook 17 and the first axis L11 of the first pin 21, that is, FIG. Is inclined at an angle ⁇ in a direction away from the rotation axis L2.
  • This angle ⁇ is selected from 30 ° to 45 °, for example.
  • the outer hook 17 is disposed above the mounting portion 31 with an attachment portion 31 in which an insertion hole 30 into which the upper end portion of the lower shaft 14 is inserted is formed coaxially with the rotation axis L ⁇ b> 2.
  • a rail groove 33 is formed on one side of the axis L2 direction and extends along an annular shape on the inner peripheral portion, and has a peripheral wall portion 34 on which the sword tip 15 is provided on the outer peripheral portion.
  • the inner hook 18 is accommodated in the space surrounded by the attachment portion 31 and the peripheral wall portion 34 of the outer hook 17, the inner hook 18 is accommodated.
  • the inner shuttle 18 is prevented from rotating by a rotation stop member (not shown) connected to the machine body of the sewing machine so as not to rotate following the rotation of the outer shuttle 17 in the rotation direction A.
  • the needle gathering plate 16 is an arc-shaped part, one end of which is screwed to the outer hook 17 and the other end is a free end.
  • the inner hook 18 has a bottom portion 32 disposed in the vicinity of the attachment portion 31 and a peripheral wall portion 40 continuous from the peripheral edge portion of the bottom portion 32 to one side in the rotation axis L2 direction.
  • a rail 41 extending along an annular shape that fits in the rail groove 33 of the outer hook 17 is formed.
  • a stud 35 is erected in a substantially cylindrical shape coaxially with the rotation axis L2 on the bottom 32, and the guide shaft 36 and the guide shaft 36 are directed upward in the opening of the stud 35, that is, in FIG. And a latch spring 37 that elastically presses.
  • the latch spring 37 is realized by a cylindrical compression coil spring.
  • a latch pin 38 is provided at the free end portion arranged on the outer hook opening end side of the stud 35, and the latch pin 38 is inserted through the base end portion of the latch piece 39, and the latch piece 39 is connected to the free end portion of the stud 35.
  • One end of the latch spring 37 abuts on the base end of the latch piece 39, and the other end of the latch spring 37 is supported by an annular step surface formed on the inner periphery of the stud 35.
  • the latch piece 39 is angularly displaceable about the axis of the latch pin 38, and is in two positions: an open position substantially parallel to the stud 35 and a closed position substantially parallel to one radial line extending from the stud 35 to the peripheral wall portion 34. Configured to be stable.
  • the stud 35 is fitted with a substantially truncated cone-shaped presser spring 42 that expands from the bottom 32 toward the opening end.
  • the presser spring 42 elastically presses the bobbin 43 accommodated in the inner hook 18 toward the open end, thereby suppressing the shakiness of the bobbin 43 in the inner hook 18 in the axis L2 direction. It is configured to prevent a change in tension of the lower thread wound around the bobbin 43 due to rattling.
  • FIG. 6 is an enlarged cross-sectional view taken along section line VI-VI in FIG.
  • the first pin 21 has an end surface 23 that supports the distal end portion 16a of the needle moving plate 16 at one end portion 21a in the first axis L11 direction, and a conical first contact at the other end portion 21b in the first axis L11 direction.
  • a surface 24 is formed.
  • the end surface 23 of the first pin 21 is a plane perpendicular to the first axis L11. Since the end face 23 is flat in this way, the tip end portion 16a of the needle gathering plate 16 can be smoothly moved on the end face 23, whereby the deflection of the needle gathering plate 16 is changed to the movement of the first pin 21. Accordingly, the amount of deflection of the needle moving plate 16 can be finely adjusted smoothly with high accuracy.
  • the second pin 22 has a conical second contact surface 25 that contacts the first contact surface 24 of the first pin 21 at one end 22a in the second axis L12 direction, and the other end 22b in the second axis L12 direction. Further, a tool fitting in which a hexagonal column-like fitting hole 26a for fitting a hexagonal wrench, for example, which is a tightening tool for screwing and screwing the second pin 22 in the direction of the second axis L12 is formed. A portion 26 is provided.
  • the end surface 23 of the first pin 21 is a plane perpendicular to the first axis L11, but in other embodiments of the present invention, the end surface 23 is convexly curved toward the other end 21b in the first axis L11 direction. It may be a curved surface.
  • the tip end portion 16a of the needle gathering plate 16 is prevented from being displaced on the end face 23 due to vibration during sewing, and the tip portion 16a of the needle gathering plate 16 can be stably supported.
  • the tip portion 16 a of the needle moving plate 16 is a curved surface that is convexly curved toward the end surface 23 of the first pin 21.
  • a curved surface may be realized by a part of a spherical surface, for example.
  • An angle ⁇ (hereinafter referred to as “vertical angle”) ⁇ corresponding to the cone apex angle of the first contact surface 24 of the first pin 21 is selected from 60 ° to 120 °, preferably from 80 ° to 100 °. It is.
  • the apex angle ⁇ of the second contact surface 25 of the second pin 22 is a complementary angle of the apex angle ⁇ of the first contact surface 24, and is selected from 120 ° to 60 °, preferably 100 ° to 80 °. To be elected.
  • the first pin 21 has a right cylindrical outer peripheral surface with a diameter D1 of, for example, 3 mm to 6 mm.
  • An insertion hole 46 through which the first pin 21 is movably guided along the first axis L11 is formed in a portion connected to the attachment portion 31 and the peripheral wall portion 34 of the outer hook 17.
  • the inner peripheral surface of the insertion hole 46 is a cylindrical surface having an inner diameter that is slightly larger than the outer peripheral surface of the first pin 21 within a tolerance range.
  • an external thread is engraved on the outer peripheral portion of the second pin 22, and the diameter (nominal diameter) D2 is selected to be 2 mm to 4 mm, for example.
  • a threaded hole 47 in which an internal thread that engages with an external thread of the second pin 22 is formed along the second axis L12 is formed in a portion connected to the mounting portion 31 and the peripheral wall portion 34 of the outer hook 17.
  • FIG. 7 is a graph showing the relationship between the movement amount ⁇ y of the second pin 22 and the movement amount ⁇ x of the first pin 21.
  • the engaging portion of the tightening tool such as the wrench described above is fitted into the fitting hole 26a of the tool fitting portion 26 of the second pin 22, and the second pin 22 is moved along the second axis L12 in addition to the first pin 21.
  • a tool such as a hexagon wrench is fitted into the tool fitting portion 26 of the second pin 22 so that the second pin 22
  • the second contact surface 25 of the second pin 22 presses the first contact surface 24 of the first pin 21 in the direction of the first axis L11, and the second axis L12 of the second pin 22.
  • the first pin 21 is moved in the direction of the first axis L11 by a distance corresponding to the amount of movement in the direction to press the distal end portion 16a of the needle gathering plate 16, and the side where the needle gathering plate 16 is close to the sewing needle 12 And the sewing needle 12 can be guided to the optimum needle moving position by the needle moving plate 16.
  • the needle moving plate 16 when the needle moving plate 16 is moved in a direction away from the sewing needle 12, the tool is fitted to the tool fitting portion 26 of the second pin 22, and the second pin 22 is screwed out.
  • the second contact surface 25 of the second pin 22 moves in a direction away from the first contact surface 24 of the first pin 21. Since it is elastically pressed by 16a, the 1st pin 21 adjoins the 2nd axis L12, maintaining the state where the 1st contact surface 24 contacted the 2nd contact surface 25 of the 2nd pin 22 Move in the direction.
  • Such movement of the first pin 21 in the direction approaching the second axis L12 corresponds to the amount of movement of the second pin 22 in the direction of the second axis L12, and the operation amount in the direction in which the second pin 22 is screwed out.
  • the first pin 21 can be retracted in the direction of the first axis L11 by a distance corresponding to.
  • the first pin 21 is moved in the first axial direction in accordance with the operation amount of the second pin 22 being screwed or retreated, and the amount of deflection of the needle moving plate 16 can be finely adjusted smoothly with high accuracy. it can. Further, since the amount of deflection of the needle moving plate 16 can be changed by the first pin 21 and the second pin 22 without using a sphere as in the prior art, the number of parts is reduced and the configuration is simplified. be able to. Parts such as the first pin 21 and the second pin 22 can be easily exchanged, and maintainability can be improved.
  • FIG. 8 is an enlarged cross-sectional view showing a configuration of a needle shifting position adjusting apparatus 10A according to another embodiment of the present invention. Note that portions corresponding to the above-described embodiment are denoted by the same reference numerals, and redundant description is omitted.
  • the apex angle ⁇ of the first contact surface 24 of the first pin 21 is selected to be 110 ° to 150 °, preferably 120 ° to 140 °.
  • the apex angle ⁇ of the second contact surface 25 of the second pin 22 is a complement angle of the apex angle ⁇ of the first contact surface 24, and is selected from 70 ° to 30 °, preferably 60 ° to 40 °. To be elected.
  • the diameter D1 of the first pin 21 and the diameter (nominal diameter) D2 of the second pin 22 are the same as in the above-described embodiment.
  • the movement amount ⁇ y of the first pin 21 is made smaller than the movement amount ⁇ x of the second pin 22 as shown by the line m2 in FIG. Fine adjustment can be made with high accuracy.
  • the end surface 23 of the first pin 21 may be formed of a curved surface that is convexly curved toward the other end portion 21b in the first axis L11 direction.
  • the distal end portion 16a of the needle moving plate 16 is configured by a curved surface that is convexly curved toward the end surface 23 of the first pin 21.
  • the tip 16a of the needle moving plate 16 can be smoothly moved while being in contact with the end surface 23 of the first pin 21, and the first pin can be moved by vibration of the tip 16a of the needle moving plate 16 or the like. It is possible to suppress the deviation on the end face 23 of 21 and to prevent undesired fluctuations in the deflection of the needle moving plate 16.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Surgical Instruments (AREA)

Abstract

Provided is a needle-handler position adjusting device that enables fine adjustments to the curvature of a needle guard (16) to be performed smoothly and accurately, and in which the number of parts is reduced to enable simplified configuration and improved maintenance properties. An outer shuttle (17) is provided with: a first pin (21) that is held so as to be displaceable in the direction of a first axis (L11), which is on a hypothetical plane that is perpendicular to a rotary axis (L2) and which intersects with a half-diameter line that centers on the rotary axis (L2); and a second pin (22) that is screwed so as to be displaceable in the direction of a second axis (L12), which is orthogonal to the first axis (L11). In the first pin (21), an end face (23) that supports an apical part (16a) of the needle guard (16) is formed at one end (21a) in the direction of the first axis (L11), and a conical first contacting face (24) is formed at the other end (21b) in the direction of the first axis (L11). In the second pin (22), a conical second contacting face (25) that contacts the first contacting face (24) of the first pin (21) is formed at one end (22a) in the direction of the second axis (L12), and a tool fitting part (26), to which a tool for screwing the second pin (22) forwards or backwards in the direction of the second axis (L12) is fitted, is disposed to the other end (22b) in the direction of the second axis (L12).

Description

針寄せ位置調整装置Needle shifting position adjustment device
　本発明は、水平全回転かまの外かまに備えられる針寄せ板の縫い針に対する位置を調整するための針寄せ位置調整装置に関する。 The present invention relates to a needle shift position adjusting device for adjusting the position of a needle shift plate provided in an outer rotary hook of a horizontal full rotation hook with respect to a sewing needle.
　水平全回転かまを備えるミシンを用いる縫製作業においては、縫い針を太いものから細いものに変更して、縫い針と針受部との間の間隔が大きくなった場合、および縫い針を細いものから太いものに変更して、縫い針と針受部とが近付き過ぎた場合などには、針糸を保持して往復動する縫い針が、針糸の張力変化によって撓みが変化しても、縫い針が外かまに接触して損傷しないように、外かまの針受部と縫い針との間隔を適正となるように調整する必要がある。そのため、従来から、外かまには針寄せ位置調整装置が装備されている。 In sewing work using a sewing machine with a horizontal full-rotation rotary hook, if the sewing needle is changed from a thicker one to a thinner one and the interval between the sewing needle and the needle receiving part increases, and if the sewing needle is a thin one When the sewing needle and the needle holder are too close to each other, the sewing needle that holds the needle thread and moves back and forth will change even if the deflection of the needle thread changes due to the tension change of the needle thread. It is necessary to adjust the distance between the needle receiving portion of the outer hook and the sewing needle so that the sewing needle does not come into contact with the outer hook and be damaged. Therefore, conventionally, the outer shuttle has been equipped with a needle shift position adjusting device.
　図９は、典型的な従来技術の針寄せ位置調整装置を示す断面図であり、この従来技術は、たとえば特許文献１に記載されている。同図は、外かまの回転軸線に垂直手前側から見た側面の一部を示している。この従来技術の針寄せ位置調整装置は、基端部が外かまに固定され、先端部１が自由端とされる針寄り板である弧状の針受部２の縫い針に対する間隔を適性に調整するために、針受部２の前記先端部１を一端部３ａで支持する第１ピンである可動ピン３と、可動ピン３の他端部３ｂに接触するように、前記外かまに配設される球体４と、球体４に一端部５ａの円錐状の端面が接触するように、外かまのねじ孔６に螺合させた状態で配設される第２ピンである調整ねじ５とを備える。 FIG. 9 is a cross-sectional view showing a typical prior art needle shift position adjusting device. This prior art is described in, for example, Patent Document 1. This figure shows a part of the side surface viewed from the front side perpendicular to the rotation axis of the outer hook. This prior art needle shift position adjusting device appropriately adjusts the distance between the arc-shaped needle receiving portion 2 which is a needle-slip plate whose base end portion is fixed to the outer hook and the distal end portion 1 is a free end with respect to the sewing needle. In order to do this, the movable pin 3 which is the first pin that supports the distal end 1 of the needle receiving portion 2 with the one end 3a and the other end 3b of the movable pin 3 are arranged on the outer hook. And the adjusting screw 5 that is a second pin disposed in a state of being screwed into the screw hole 6 of the outer hook so that the conical end surface of the one end portion 5a contacts the sphere 4. Prepare.
　前記可動ピン３、球体４および調整ねじ５は、直径がそれぞれ３ｍｍ程度の微細な金属製の部品であり、調整ねじ５の螺進および螺退による軸線方向の移動を、該調整ねじ５の軸線に直交する軸線方向に配設された可動ピン３に球体４を介して伝達し、この可動ピン３の一端部３ａによって、針受部２の先端部１を、外かまの回転軸線に垂直な仮想一平面上において、外かまが回転したときに前記先端部１が描く仮想円に対する接線よりも僅かに内側から押圧して、針受部２の弾性変形による撓み量を変化させることができる。 The movable pin 3, the sphere 4, and the adjustment screw 5 are fine metal parts each having a diameter of about 3 mm, and the movement of the adjustment screw 5 in the axial direction due to the screwing and unscrewing of the adjustment screw 5 is performed. Is transmitted to the movable pin 3 disposed in the axial direction orthogonal to the sphere 4 via the spherical body 4, and the distal end portion 1 of the needle receiving portion 2 is perpendicular to the rotation axis of the outer hook by the one end portion 3 a of the movable pin 3. On the imaginary plane, when the outer shuttle rotates, the amount of deflection due to the elastic deformation of the needle receiving portion 2 can be changed by slightly pressing from the inner side of the tangent to the imaginary circle drawn by the tip portion 1.
　したがって、調整ねじ５にドライバなどのねじ締め工具を掛合して螺進する方向へ回すと、調整ねじ５は球体４に近接する方向へ移動し、球体４から可動ピン３に作用する押圧力が大きくなって、可動ピン３が針受部２側に向けて移動し、また調整ねじ５を螺退する方向へ回して球体４から離反する方向へ移動させると、球体４から可動ピン３に作用する押圧力が小さくなり、可動ピン３は、針受部２の弾性回復力によって押し返され、針受部２から後退する方向へ移動する。 Therefore, when a screw tightening tool such as a screwdriver is engaged with the adjustment screw 5 and rotated in the direction of screwing, the adjustment screw 5 moves in a direction close to the sphere 4 and the pressing force acting on the movable pin 3 from the sphere 4 is increased. When the movable pin 3 becomes larger and moves toward the needle receiving portion 2 side, and the adjustment screw 5 is rotated in the direction of screwing and moved away from the sphere 4, the sphere 4 acts on the movable pin 3. The pressing force is reduced, and the movable pin 3 is pushed back by the elastic recovery force of the needle receiving portion 2 and moves in a direction of retreating from the needle receiving portion 2.
　このように従来技術の針寄せ位置調整装置は、調整ねじ５を螺進および螺退させる操作によって、調整ねじ５の変位を、球体４を介して可動ピン３へ伝達し、可動ピン３を針受部２に近接する方向および離反する方向へ移動させて、針受部２の撓み量を半径方向に変化させ、縫い針に対する針受部２の位置を調整することができるように構成されている。 As described above, the conventional needle shift position adjusting device transmits the displacement of the adjusting screw 5 to the movable pin 3 through the spherical body 4 by the operation of screwing and unscrewing the adjusting screw 5, and the movable pin 3 is moved to the needle. It is configured to be able to adjust the position of the needle receiving portion 2 with respect to the sewing needle by moving the needle receiving portion 2 in the radial direction by moving the needle receiving portion 2 in a direction approaching and separating from the receiving portion 2. Yes.
特開２００４－２２９８７４号公報JP 2004-229874 A
　前述の従来技術の針寄り位置調整装置では、調整ねじ５の移動は球体４を介して可動ピン３に伝達されるので、調整ねじ５の一端部５ａおよび可動ピン３の他端部３ｂには、球体４が点接触し、長期の使用によって調整ねじ５の一端部５ａおよび可動ピン３の他端部３ｂが球体４との接触位置において変形または摩耗する。 In the above-described prior art needle position adjustment device, the movement of the adjustment screw 5 is transmitted to the movable pin 3 via the sphere 4, so that the one end portion 5 a of the adjustment screw 5 and the other end portion 3 b of the movable pin 3 are connected to each other. The spherical body 4 makes point contact, and one end portion 5a of the adjusting screw 5 and the other end portion 3b of the movable pin 3 are deformed or worn at a contact position with the spherical body 4 by long-term use.
　このような変形または摩耗が生じた状態で、針寄せ位置を調整するため、調整ねじ５を移動させると、調整ねじ５の一端部５ａの円錐状の端面と球体４との接触位置がずれるため、球体４は、前記円錐状の端面の前記変形または摩耗した位置とは調整ピン５の軸線方向および該軸線まわりの異なる位置に接触し、可動ピン３を調整ねじ５の移動量に応じて高精度で移動させることができなくなり、針受部２の半径方向の撓み量を高精度で円滑に微調整することが困難になってしまうという問題がある。 If the adjustment screw 5 is moved in order to adjust the needle moving position in a state where such deformation or wear has occurred, the contact position between the conical end surface of the one end portion 5a of the adjustment screw 5 and the sphere 4 will shift. The spherical body 4 is in contact with the deformed or worn position of the conical end face in the axial direction of the adjusting pin 5 and a different position around the axial line, and the movable pin 3 is raised according to the amount of movement of the adjusting screw 5. There is a problem that it becomes impossible to move with accuracy, and it becomes difficult to finely adjust the amount of bending in the radial direction of the needle receiver 2 smoothly with high accuracy.
　また、前記従来技術の針寄せ位置調整装置は、直径が３ｍｍ程度の微小部品である可動ピン３と球体４と調整ねじ５とによって構成されるため、部品点数が多く、前記変形および摩耗した際の交換にも手間を要し、メンテナンス性が悪いという問題がある。 In addition, since the needle position adjusting device of the prior art is composed of the movable pin 3, the sphere 4 and the adjusting screw 5 which are minute parts having a diameter of about 3 mm, the number of parts is large, and when the deformation and wear occur. It takes time and effort to replace the battery, and there is a problem of poor maintainability.
　本発明の目的は、針寄せ板の撓み量を高精度で円滑に微調整することができる針寄せ位置調整装置を提供することである。 An object of the present invention is to provide a needle moving position adjusting device capable of finely adjusting a deflection amount of a needle moving plate with high accuracy and smoothly.
　本発明の他の目的は、部品点数を削減して構成を簡素化し、メンテナンス性を向上することができる針寄せ位置調整装置を提供することである。 Another object of the present invention is to provide a needle position adjusting device that can reduce the number of parts, simplify the configuration, and improve maintainability.
　本発明は、縫い針が取付けられる針棒の軸線に平行な回転軸線まわりに回転駆動される下軸に固定され、前記回転方向下流側に先端部を向けて先細状となる剣先部を有し、前記剣先部よりも前記回転方向下流側に、前記回転方向上流側に先端部を向けて先細状となる針寄せ板が配設される外かまとを備える水平全回転かまに設けられる針寄せ位置調整装置であって、
　前記外かまに、前記回転軸線に垂直な仮想一平面上で、前記回転軸線を中心とする一半径線に交差する第１軸線方向に変位可能に保持される第１ピンであって、前記第１軸線方向一端部に、前記針寄せ板の先端部を支持する端面が形成され、前記第１軸線方向他端部に、円錐状の第１接触面が形成される第１ピンと、
　前記外かまに、前記第１軸線に直交する第２軸線方向に変位可能に螺着される第２ピンであって、前記第２軸線方向一端部に、前記第１ピンの第１接触面に接触する円錐状の第２接触面が形成され、前記第２軸線方向他端部に、該第２ピンを前記第２軸線方向に螺進および螺退させるための工具を嵌合させる工具嵌合部が設けられる第２ピンと、を含むことを特徴とする針寄せ位置調整装置である。 The present invention has a sword tip portion that is fixed to a lower shaft that is rotationally driven around a rotation axis parallel to the axis of a needle bar to which a sewing needle is attached, and that has a tapered shape with the tip portion directed downstream in the rotation direction. A needle shifter provided in a horizontal full rotation hook provided with an outer rotary hook provided with a tapered needle shifter plate having a tip portion facing the upstream side in the rotation direction and downstream of the sword tip in the rotation direction. A position adjusting device comprising:
A first pin held on the outer hook so as to be displaceable in a first axis direction intersecting a radius line centered on the rotation axis on a virtual one plane perpendicular to the rotation axis; An end surface that supports a tip end portion of the needle moving plate is formed at one end in one axial direction, and a first pin that has a conical first contact surface formed at the other end in the first axial direction;
A second pin screwed to the outer hook so as to be displaceable in a second axial direction perpendicular to the first axis, and is disposed at one end of the second axial direction on a first contact surface of the first pin. A tool fitting in which a conical second contact surface is formed and a tool for screwing and unscrewing the second pin in the second axial direction is fitted to the other end in the second axial direction And a second pin provided with a portion.
　また本発明において、前記第１ピンの前記端面は、前記第１軸線に垂直な平面であることが好ましい。 In the present invention, it is preferable that the end surface of the first pin is a plane perpendicular to the first axis.
　また本発明において、前記第１ピンの前記端面は、前記第１軸線方向他端部に向って凸に湾曲する曲面であることが好ましい。 In the present invention, it is preferable that the end surface of the first pin is a curved surface that is convexly curved toward the other end in the first axial direction.
　また本発明において、前記針寄せ板の前記先端部は、前記第１ピンの前記端面に向って凸に湾曲した曲面であることが好ましい。 In the present invention, it is preferable that the tip portion of the needle moving plate is a curved surface that is convexly curved toward the end surface of the first pin.
　本発明によれば、水平全回転かまにおいて、縫い針が取付けられる針棒の軸線に平行な回転軸線まわりに回転駆動される下軸には、外かまが固定される。外かまは、前記回転方向下流側に先端部を向けて先細状となる剣先部を有し、この剣先部よりも前記回転方向下流側には、前記回転方向上流側に先端部を向けて先細状となる針寄せ板が配設される。このような水平全回転かまの外かまには、針寄せ板を針棒に取付けられる縫い針の移動経路に近接または離反する方向に変位させて、縫い針に対する針寄せ板の位置を調整するために、針寄せ位置調整装置が設けられる。 According to the present invention, in the horizontal full rotation rotary hook, the outer rotary hook is fixed to the lower shaft that is rotationally driven around the rotation axis parallel to the axis of the needle bar to which the sewing needle is attached. The outer hook has a sword tip that tapers toward the downstream side in the rotation direction, and the taper is tapered toward the upstream side in the rotation direction on the downstream side in the rotation direction from the sword tip portion. A needle moving plate is disposed. In order to adjust the position of the needle moving plate with respect to the sewing needle, the needle moving plate is displaced in the direction close to or away from the moving path of the sewing needle attached to the needle bar. In addition, a needle shift position adjusting device is provided.
　前記針寄せ位置調整装置は、第１ピンと第２ピンとを含んで構成される。第１ピンは、外かまに、回転軸線に垂直な仮想一平面上で、回転軸線を中心とする一半径線に交差する第１軸線方向に変位可能に保持され、第１軸線方向一端部には、針寄せ板の先端部を支持する端面が形成され、第１軸線方向他端部には、円錐状の第１接触面が形成される。 The needle shift position adjusting device includes a first pin and a second pin. The first pin is held on an outer hook so as to be displaceable in a first axis direction intersecting a radius line centered on the rotation axis on a virtual plane perpendicular to the rotation axis, and is held at one end in the first axis direction. Is formed with an end face that supports the tip end portion of the needle moving plate, and a conical first contact face is formed at the other end portion in the first axial direction.
　また第２ピンは、外かまに、第１軸線に直交する第２軸線方向に変位可能に螺着され、第２軸線方向一端部には、第１ピンの第１接触面に接触する円錐状の第２接触面が形成され、第２軸線方向他端部に、該第２ピンを前記第２軸線方向に螺進および螺退させるための工具が嵌合する工具嵌合部が設けられる。 The second pin is screwed to the outer hook so as to be displaceable in the second axial direction orthogonal to the first axis, and has a conical shape that contacts the first contact surface of the first pin at one end in the second axial direction. The second contact surface is formed, and a tool fitting portion to which a tool for screwing and screwing the second pin in the second axial direction is fitted at the other end portion in the second axial direction.
　針寄せ板を縫い針に対して近接する方向に移動させる場合には、第２ピンの工具嵌合部に、たとえばレンチなどの工具を嵌合させて、第２ピンが螺進する方向に操作することによって、第２ピンの第２接触面が第１ピンの第１接触面を第１軸線方向に押圧し、第２ピンの第２軸線方向への移動量に対応する距離だけ第１ピンを第１軸線方向へ移動させて、針寄せ板の先端部を押圧し、針寄せ板を縫い針に近接する側へ移動させて、針寄せ板によって縫い針を最適な針寄せ位置に案内することができる。 When moving the needle moving plate in the direction approaching the sewing needle, for example, a tool such as a wrench is fitted to the tool fitting portion of the second pin, and the second pin is operated in the screwing direction. By doing so, the second contact surface of the second pin presses the first contact surface of the first pin in the first axial direction, and the first pin has a distance corresponding to the amount of movement of the second pin in the second axial direction. Is moved in the direction of the first axis, the tip of the needle moving plate is pressed, the needle moving plate is moved to the side close to the sewing needle, and the sewing needle is guided to the optimum needle moving position by the needle moving plate. be able to.
　また、針寄せ板を縫い針に対して離反する方向へ移動させる場合には、第２ピンの工具嵌合部に前記工具を嵌合させて、第２ピンが螺退する方向に操作することによって、第２ピンの第２接触面が第１ピンの第１接触面から離反する方向へ移動するが、第１ピンは、針寄せ板の先端部によって弾発的に押圧されているので、第１ピンは、第１接触面を第２ピンの第２接触面に接触した状態を維持したまま、前記螺進する方向は逆方向、すなわち第２軸線に近接する方向へ移動する。このような第１ピンの第２軸線に近接する方向の移動は、第２ピンの第２軸線方向への移動量に対応し、第２ピンを螺退させる方向の操作量に対応する距離だけ、第１ピンを第１軸線方向へ待避させることができる。 Further, when the needle moving plate is moved away from the sewing needle, the tool is fitted to the tool fitting portion of the second pin and operated in the direction in which the second pin is screwed out. Thus, the second contact surface of the second pin moves in a direction away from the first contact surface of the first pin, but since the first pin is elastically pressed by the tip of the needle moving plate, The first pin moves in the reverse direction, that is, in the direction close to the second axis, while maintaining the state where the first contact surface is in contact with the second contact surface of the second pin. The movement of the first pin in the direction close to the second axis corresponds to the amount of movement of the second pin in the second axis direction, and is the distance corresponding to the operation amount in the direction of screwing out the second pin. The first pin can be retracted in the first axis direction.
　このように第２ピンの螺進または螺退させる操作量に応じて第２ピンを第１軸線方向へ移動させ、針寄せ板の撓み量を高精度で円滑に微調整することができる。また、前記従来技術のように球体を用いずに、針寄せ板の撓み量を第１ピンおよび第２ピンによって変化させることができるので、部品点数を削減して構成を簡素化することができる。第１ピンおよび第２ピンなどの部品の交換を容易に行うことができ、メンテナンス性を向上することができる。 In this way, the second pin is moved in the first axial direction in accordance with the operation amount of the second pin being screwed or retreated, and the amount of deflection of the needle moving plate can be finely adjusted smoothly with high accuracy. In addition, since the amount of deflection of the needle moving plate can be changed by the first pin and the second pin without using a sphere as in the prior art, the number of parts can be reduced and the configuration can be simplified. . The parts such as the first pin and the second pin can be easily exchanged, and the maintainability can be improved.
　また本発明によれば、第１ピンの端面が第１軸線に垂直な平面であるので、針寄せ板の先端部を第１ピンの端面に接触させた状態で円滑に移動させることができる。これによって針寄せ板の撓みを第１ピンの移動に応じて円滑に変化させることができ、針寄せ板の撓み量をより高精度で円滑に微調整することができる。 Further, according to the present invention, since the end surface of the first pin is a plane perpendicular to the first axis, it is possible to smoothly move the tip portion of the needle moving plate in contact with the end surface of the first pin. Accordingly, the deflection of the needle moving plate can be smoothly changed according to the movement of the first pin, and the amount of bending of the needle moving plate can be finely adjusted smoothly with higher accuracy.
　また本発明によれば、第１ピンの端面が第１軸線方向他端部に向って凸に湾曲する曲面であるので、針寄せ板の先端部が振動などによって第１ピンの端面上でずれてしまうことが抑制され、針寄せ板の撓みが縫製時に不所望に変動することが防がれる。 Further, according to the present invention, since the end surface of the first pin is a curved surface that is convexly curved toward the other end portion in the first axial direction, the tip portion of the needle moving plate is displaced on the end surface of the first pin due to vibration or the like. It is possible to prevent the needle gathering plate from fluctuating undesirably during sewing.
　また本発明によれば、針寄せ板の先端部は、第１ピンの端面に向って凸に湾曲した曲面であるので、針寄せ板の先端部を第１ピンの端面に接触させた状態で円滑に移動させることができるともに、針寄せ板の先端部が振動などによって第１ピンの端面上でずれを抑制して、針寄せ板の撓みの不所望な変動を防止することができる。 Further, according to the present invention, the tip portion of the needle moving plate is a curved surface that is convexly curved toward the end surface of the first pin, so that the tip portion of the needle moving plate is in contact with the end surface of the first pin. While being able to move smoothly, the front-end | tip part of a needle gathering board can suppress a shift | offset | difference on the end surface of a 1st pin by vibration etc., and can prevent the undesired fluctuation | variation of the deflection of a needle gathering board.
　本発明の目的、特色、および利点は、下記の詳細な説明と図面とからより明確になるであろう。
本発明の一実施形態の針寄せ位置調整装置が設けられる水平全回転かまの断面図である。 水平全回転かまの針寄せ位置調整装置付近を図１の上方から見た一部の拡大断面図である。 図１に示す水平全回転かまに内かま１８が収容された状態を示す平面図である。 内かま１８の側面図である。 図３の切断面線Ｖ－Ｖから見た断面図である。 図２の切断面線ＶＩ－ＶＩから見た拡大断面図である。 第２ピン２２の移動量δｙと第１ピン２１の移動量δｘとの関係を示すグラフである。 本発明の他の実施形態の針寄せ位置調整装置１０Ａの構成を示す拡大断面図である。 典型的な従来技術の針寄せ位置調整装置を示す断面図である。 Objects, features, and advantages of the present invention will become more apparent from the following detailed description and drawings.
It is sectional drawing of the horizontal full rotation shuttle provided with the needle | hook approach position adjustment apparatus of one Embodiment of this invention. FIG. 2 is a partial enlarged cross-sectional view of the vicinity of a needle shift position adjusting device of a horizontal full rotation hook as viewed from above in FIG. 1. It is a top view which shows the state in which the inner hook 18 was accommodated in the horizontal full rotation hook shown in FIG. It is a side view of the inner hook 18. FIG. 5 is a cross-sectional view taken along a section line VV in FIG. 3. FIG. 3 is an enlarged cross-sectional view seen from a section line VI-VI in FIG. 2. 5 is a graph showing the relationship between the movement amount δy of the second pin 22 and the movement amount δx of the first pin 21. It is an expanded sectional view which shows the structure of 10 A of needle | hook moving position adjustment apparatuses of other embodiment of this invention. It is sectional drawing which shows the typical needle | hook approach position adjustment apparatus of a prior art.
　図１は、本発明の一実施形態の針寄せ位置調整装置１０が設けられる水平全回転かま１１の断面図であり、図２は水平全回転かま１１の針寄せ位置調整装置１０付近を図１の上方から見た一部の拡大断面図である。図３は図１に示す水平全回転かま１１に内かま１８が収容された状態を示す平面図であり、図４は内かま１８の側面図であり、図５は図３の切断面線Ｖ－Ｖから見た断面図である。 FIG. 1 is a cross-sectional view of a horizontal full rotation hook 11 provided with a needle shift position adjusting device 10 according to an embodiment of the present invention. FIG. 2 shows the vicinity of the needle shift position adjusting device 10 of the horizontal full rotation hook 11. It is a partial expanded sectional view seen from above. FIG. 3 is a plan view showing a state in which the inner shuttle 18 is accommodated in the horizontal full rotation shuttle 11 shown in FIG. 1, FIG. 4 is a side view of the inner shuttle 18, and FIG. It is sectional drawing seen from -V.
　本縫ミシンには、縫い針１２が着脱可能に取付けられる針棒１３と、針棒１３の軸線Ｌ１に平行な回転軸線Ｌ２まわりに回転方向Ａに回転駆動される下軸１４とが設けられる。下軸１４には、回転方向Ａ下流側に先端部を向けて先細状となる剣先部１５を有し、剣先部１５よりも回転方向Ａ下流側に、該回転方向Ａ上流側に先端部を向けて先細状となる針寄せ板１６が配設される外かま１７と、外かま１７に収容される内かま１８とを備える水平全回転かま１１が設けられ、この水平全回転かま１１に本実施形態の針寄せ位置調整装置１０が設けられる。 The main sewing machine is provided with a needle bar 13 to which the sewing needle 12 is detachably attached, and a lower shaft 14 that is rotationally driven in the rotation direction A around the rotation axis L2 parallel to the axis L1 of the needle bar 13. The lower shaft 14 has a sword tip 15 that tapers toward the downstream side in the rotational direction A, and has a tip portion on the downstream side in the rotational direction A with respect to the sword tip 15 and on the upstream side in the rotational direction A. There is provided a horizontal full rotation hook 11 provided with an outer hook 17 on which a needle moving plate 16 that is tapered toward the inner side and an inner hook 18 accommodated in the outer hook 17 are provided. A needle shift position adjusting device 10 according to the embodiment is provided.
　針寄せ位置調整装置１０は、外かま１７に、回転軸線Ｌ２に垂直な仮想一平面上で、回転軸線Ｌ２を中心とする一半径線に交差する第１軸線Ｌ１１方向に変位可能に保持される第１ピン２１と、外かま１７に、第１軸線Ｌ１１に直交する第２軸線Ｌ１２方向に変位可能に螺着される第２ピン２２とを含む。 The needle shift position adjusting device 10 is held on the outer hook 17 so as to be displaceable in the direction of the first axis L11 intersecting with one radial line centered on the rotation axis L2 on a virtual one plane perpendicular to the rotation axis L2. The first pin 21 and the outer pin 17 include a second pin 22 screwed to be displaceable in the direction of the second axis L12 perpendicular to the first axis L11.
　第２ピン２２の第２軸線Ｌ１２は、外かま１７の回転軸線Ｌ２および第１ピン２１の第１軸線Ｌ１１を含む仮想一平面上において、第１軸線Ｌ１１から外かま開放端側、すなわち図５の上方へ向かって回転軸線Ｌ２から離反する方向に角度θを成して傾斜する。この角度θは、たとえば３０°～４５°に選ばれる。 The second axis L12 of the second pin 22 is on the outer open end side from the first axis L11 on the imaginary plane including the rotation axis L2 of the outer hook 17 and the first axis L11 of the first pin 21, that is, FIG. Is inclined at an angle θ in a direction away from the rotation axis L2. This angle θ is selected from 30 ° to 45 °, for example.
　外かま１７は、下軸１４の上端部が挿入する挿入孔３０が回転軸線Ｌ２と同軸に形成される取付け部３１と、取付け部３１の上方に間隔をあけて配置され、取付け部３１に回転軸線Ｌ２方向一方側に連なり、内周部に円環状に沿って延びる軌溝３３が形成されるとともに、外周部に剣先部１５が設けられる周壁部３４とを有する。 The outer hook 17 is disposed above the mounting portion 31 with an attachment portion 31 in which an insertion hole 30 into which the upper end portion of the lower shaft 14 is inserted is formed coaxially with the rotation axis L <b> 2. A rail groove 33 is formed on one side of the axis L2 direction and extends along an annular shape on the inner peripheral portion, and has a peripheral wall portion 34 on which the sword tip 15 is provided on the outer peripheral portion.
　外かま１７の取付部３１と周壁部３４とに囲まれた空間には、内かま１８が収容される。内かま１８は、ミシンの機体に連結された図示しない回り止め部材によって、外かま１７の回転方向Ａへの回転に追従して回転しないように回り止めされている。 In the space surrounded by the attachment portion 31 and the peripheral wall portion 34 of the outer hook 17, the inner hook 18 is accommodated. The inner shuttle 18 is prevented from rotating by a rotation stop member (not shown) connected to the machine body of the sewing machine so as not to rotate following the rotation of the outer shuttle 17 in the rotation direction A.
　針寄せ板１６は、弧状に形成されて一端が外かま１７にねじ止めされ、他端が自由端とされた部品であり、その外周側に上下方向に往復動する縫い針１２の移動経路が位置するように位置決めされている。 The needle gathering plate 16 is an arc-shaped part, one end of which is screwed to the outer hook 17 and the other end is a free end. The movement path of the sewing needle 12 that reciprocates in the vertical direction on the outer peripheral side thereof. Positioned to be located.
　内かま１８は、取付け部３１に近接して配置される底部３２と、底部３２の周縁部から回転軸線Ｌ２方向一方側に連なる周壁部４０とを有する。周壁部４０の外周部には、外かま１７の軌溝３３に嵌合する円環状に沿って延びる軌条４１が形成される。 The inner hook 18 has a bottom portion 32 disposed in the vicinity of the attachment portion 31 and a peripheral wall portion 40 continuous from the peripheral edge portion of the bottom portion 32 to one side in the rotation axis L2 direction. On the outer peripheral portion of the peripheral wall portion 40, a rail 41 extending along an annular shape that fits in the rail groove 33 of the outer hook 17 is formed.
　底部３２には、回転軸線Ｌ２と同軸に略円筒状にスタッド３５が立設され、スタッド３５内には、案内軸３６と、案内軸３６をスタッド３５の開口端、すなわち図１の上方へ向けて弾発的に押圧するラッチばね３７とが設けられる。ラッチばね３７は、円筒状の圧縮コイルばねによって実現される。 A stud 35 is erected in a substantially cylindrical shape coaxially with the rotation axis L2 on the bottom 32, and the guide shaft 36 and the guide shaft 36 are directed upward in the opening of the stud 35, that is, in FIG. And a latch spring 37 that elastically presses. The latch spring 37 is realized by a cylindrical compression coil spring.
　スタッド３５の外かま開口端側に配置される遊端部には、ラッチピン３８が設けられ、このラッチピン３８はラッチ片３９の基端部を挿通し、ラッチ片３９をスタッド３５の遊端部に角変位可能に連結する。ラッチ片３９の基端部には、ラッチばね３７の一端部が弾発的に当接し、ラッチばね３７の他端部はスタッド３５に内周部に形成される円環状の段差面によって支持され、ラッチ片３９をラッチピン３８の軸線まわりに角変位可能な状態で、スタッド３５にほぼ平行な開放位置と、スタッド３５から周壁部３４とにわたる一半径線にほぼ平行な閉鎖位置との２位置で安定するように構成される。 A latch pin 38 is provided at the free end portion arranged on the outer hook opening end side of the stud 35, and the latch pin 38 is inserted through the base end portion of the latch piece 39, and the latch piece 39 is connected to the free end portion of the stud 35. Connect to be angularly displaceable. One end of the latch spring 37 abuts on the base end of the latch piece 39, and the other end of the latch spring 37 is supported by an annular step surface formed on the inner periphery of the stud 35. The latch piece 39 is angularly displaceable about the axis of the latch pin 38, and is in two positions: an open position substantially parallel to the stud 35 and a closed position substantially parallel to one radial line extending from the stud 35 to the peripheral wall portion 34. Configured to be stable.
　スタッド３５には、底部３２から開口端側にむかって拡径する略円錐台状の押えばね４２が装着される。この押えばね４２は、内かま１８に収容されるボビン４３を開放端側へ弾発的に押圧し、これによってボビン４３の内かま１８内における軸線Ｌ２方向のがたつきを抑制し、このがたつきによって該ボビン４３に巻回される下糸の張力変化を防止するように構成されている。 The stud 35 is fitted with a substantially truncated cone-shaped presser spring 42 that expands from the bottom 32 toward the opening end. The presser spring 42 elastically presses the bobbin 43 accommodated in the inner hook 18 toward the open end, thereby suppressing the shakiness of the bobbin 43 in the inner hook 18 in the axis L2 direction. It is configured to prevent a change in tension of the lower thread wound around the bobbin 43 due to rattling.
　図６は、図２の切断面線ＶＩ－ＶＩから見た拡大断面図である。第１ピン２１は、第１軸線Ｌ１１方向一端部２１ａに、針寄せ板１６の先端部１６ａを支持する端面２３が形成され、第１軸線Ｌ１１方向他端部２１ｂに、円錐状の第１接触面２４が形成される。第１ピン２１の端面２３は、第１軸線Ｌ１１に垂直な平面である。このように端面２３が平面であるので、針寄せ板１６の先端部１６ａを端面２３上で円滑に移動することが可能であり、これによって針寄せ板１６の撓みを第１ピン２１の移動に応じて円滑に変化させ、針寄せ板１６の撓み量を高精度で円滑に微調整することができる。 FIG. 6 is an enlarged cross-sectional view taken along section line VI-VI in FIG. The first pin 21 has an end surface 23 that supports the distal end portion 16a of the needle moving plate 16 at one end portion 21a in the first axis L11 direction, and a conical first contact at the other end portion 21b in the first axis L11 direction. A surface 24 is formed. The end surface 23 of the first pin 21 is a plane perpendicular to the first axis L11. Since the end face 23 is flat in this way, the tip end portion 16a of the needle gathering plate 16 can be smoothly moved on the end face 23, whereby the deflection of the needle gathering plate 16 is changed to the movement of the first pin 21. Accordingly, the amount of deflection of the needle moving plate 16 can be finely adjusted smoothly with high accuracy.
　第２ピン２２は、第２軸線Ｌ１２方向一端部２２ａに、第１ピン２１の第１接触面２４に接触する円錐状の第２接触面２５が形成され、第２軸線Ｌ１２方向他端部２２ｂに、該第２ピン２２を第２軸線Ｌ１２方向に螺進および螺退させるための締付け工具である、たとえば六角レンチを嵌合させるための六角柱状の嵌合孔２６ａが形成される工具嵌合部２６が設けられる。 The second pin 22 has a conical second contact surface 25 that contacts the first contact surface 24 of the first pin 21 at one end 22a in the second axis L12 direction, and the other end 22b in the second axis L12 direction. Further, a tool fitting in which a hexagonal column-like fitting hole 26a for fitting a hexagonal wrench, for example, which is a tightening tool for screwing and screwing the second pin 22 in the direction of the second axis L12 is formed. A portion 26 is provided.
　第１ピン２１の端面２３は、本実施形態では、第１軸線Ｌ１１に垂直な平面であるが、本発明の他の実施形態では、第１軸線Ｌ１１方向他端部２１ｂに向って凸に湾曲する曲面であってもよい。これによって、針寄せ板１６の先端部１６ａが縫製時の振動などによって端面２３上でずれることが防がれ、安定に針寄せ板１６の先端部１６ａを支持することができる。 In the present embodiment, the end surface 23 of the first pin 21 is a plane perpendicular to the first axis L11, but in other embodiments of the present invention, the end surface 23 is convexly curved toward the other end 21b in the first axis L11 direction. It may be a curved surface. As a result, the tip end portion 16a of the needle gathering plate 16 is prevented from being displaced on the end face 23 due to vibration during sewing, and the tip portion 16a of the needle gathering plate 16 can be stably supported.
　また、針寄せ板１６の先端部１６ａは、第１ピン２１の端面２３に向って凸に湾曲した曲面である。このような曲面は、たとえば球面の一部によって実現されてもよい。これによって、針寄せ板１６の先端部１６ａが縫製時の振動などによって前記平面状または曲面状の端面２３上でずれることが防がれ、安定に針寄せ板１６の先端部１６ａを支持することができる。 Further, the tip portion 16 a of the needle moving plate 16 is a curved surface that is convexly curved toward the end surface 23 of the first pin 21. Such a curved surface may be realized by a part of a spherical surface, for example. As a result, the tip end portion 16a of the needle gathering plate 16 is prevented from shifting on the planar or curved end surface 23 due to vibration during sewing, and the tip portion 16a of the needle gathering plate 16 is stably supported. Can do.
　第１ピン２１の第１接触面２４の円錐の頂角に対応する角度（以下、「頂角」と記す）αは、６０°～１２０°に選ばれ、好ましくは８０°～１００°に選ばれる。また第２ピン２２の第２接触面２５の頂角βは、第１接触面２４の頂角αの補角であって、１２０°～６０°に選ばれ、好ましくは１００°～８０°に選ばれる。 An angle α (hereinafter referred to as “vertical angle”) α corresponding to the cone apex angle of the first contact surface 24 of the first pin 21 is selected from 60 ° to 120 °, preferably from 80 ° to 100 °. It is. The apex angle β of the second contact surface 25 of the second pin 22 is a complementary angle of the apex angle α of the first contact surface 24, and is selected from 120 ° to 60 °, preferably 100 ° to 80 °. To be elected.
　第１ピン２１は、直径Ｄ１がたとえば３ｍｍ～６ｍｍの直円筒状の外周面を有する。外かま１７の取付け部３１および周壁部３４に連なる部分には、第１軸線Ｌ１１に沿って第１ピン２１が移動可能に案内される挿通孔４６が形成される。この挿通孔４６の内周面は、第１ピン２１の外周面よりも公差の範囲で僅かに大きい内径の円筒面から成る。 The first pin 21 has a right cylindrical outer peripheral surface with a diameter D1 of, for example, 3 mm to 6 mm. An insertion hole 46 through which the first pin 21 is movably guided along the first axis L11 is formed in a portion connected to the attachment portion 31 and the peripheral wall portion 34 of the outer hook 17. The inner peripheral surface of the insertion hole 46 is a cylindrical surface having an inner diameter that is slightly larger than the outer peripheral surface of the first pin 21 within a tolerance range.
　また第２ピン２２の外周部には、外ねじが刻設され、直径（呼び径）Ｄ２はたとえば２ｍｍ～４ｍｍに選ばれる。外かま１７の取付け部３１および周壁部３４に連なる部分には、第２軸線Ｌ１２に沿って第２ピン２２の外ねじに螺合する内ねじが刻設されたねじ孔４７が形成される。 Further, an external thread is engraved on the outer peripheral portion of the second pin 22, and the diameter (nominal diameter) D2 is selected to be 2 mm to 4 mm, for example. A threaded hole 47 in which an internal thread that engages with an external thread of the second pin 22 is formed along the second axis L12 is formed in a portion connected to the mounting portion 31 and the peripheral wall portion 34 of the outer hook 17.
　図７は、第２ピン２２の移動量δｙと第１ピン２１の移動量δｘとの関係を示すグラフである。第２ピン２２の工具嵌合部２６の嵌合孔２６ａに前述のレンチなどの締付け工具の掛合部を嵌合させて、第２ピン２２を第２軸線Ｌ１２に沿って第１ピン２１の他端部２１ｂを押圧する方向Ｃ１に螺進させると、第１ピン２１は、ラインｍ１で示すように、第２ピン２２の第２軸線Ｌ１２方向への移動量δｘに対応する移動量δｙ（＝δｘ・ｔａｎ（β／２））だけ第１軸線Ｌ１１方向の一方側Ｃ１１へ移動する。 FIG. 7 is a graph showing the relationship between the movement amount δy of the second pin 22 and the movement amount δx of the first pin 21. The engaging portion of the tightening tool such as the wrench described above is fitted into the fitting hole 26a of the tool fitting portion 26 of the second pin 22, and the second pin 22 is moved along the second axis L12 in addition to the first pin 21. When the end 21b is screwed in the pressing direction C1, the first pin 21 moves δy (=) corresponding to the moving amount δx of the second pin 22 in the direction of the second axis L12, as indicated by the line m1. It moves to one side C11 in the direction of the first axis L11 by (δx · tan (β / 2)).
　このような構成において、使用する縫い針１２を太いものから細いものに変更したために縫い針１２と針寄せ板１６との間の間隔が大きくなった場合、または、他の理由で縫い針１２と針寄せ板１６との間の間隔が大きくなった場合には、その間隔を適正範囲内となるように小さくする調整を行う。また、使用する縫い針１２を細いものから太いものに変更することによって、縫い針１２と針寄せ板１６とが近付き過ぎてその間隔が小さくなり過ぎた場合には、その間隔を適正範囲となるように大きくする調整を行う。 In such a configuration, when the sewing needle 12 to be used is changed from a thick one to a thin one so that the interval between the sewing needle 12 and the needle moving plate 16 becomes large, or for other reasons, When the interval between the needle moving plate 16 is increased, adjustment is performed to reduce the interval so as to be within an appropriate range. In addition, when the sewing needle 12 to be used is changed from a thin one to a thick one, and the distance between the sewing needle 12 and the needle moving plate 16 becomes too close and the distance becomes too small, the distance becomes an appropriate range. Make adjustments to make it larger.
　針寄せ板１６を縫い針１２に対して近接する方向に移動させる場合には、第２ピン２２の工具嵌合部２６に、たとえば六角レンチなどの工具を嵌合させて、第２ピン２２が螺進する方向に操作することによって、第２ピン２２の第２接触面２５が第１ピン２１の第１接触面２４を第１軸線Ｌ１１方向に押圧し、第２ピン２２の第２軸線Ｌ１２方向への移動量に対応する距離だけ、第１ピン２１を第１軸線Ｌ１１方向へ移動させて、針寄せ板１６の先端部１６ａを押圧し、針寄せ板１６を縫い針１２に近接する側へ移動させて、針寄せ板１６によって縫い針１２を最適な針寄せ位置に案内することができる。 When moving the needle moving plate 16 in the direction approaching the sewing needle 12, a tool such as a hexagon wrench is fitted into the tool fitting portion 26 of the second pin 22 so that the second pin 22 By operating in the screwing direction, the second contact surface 25 of the second pin 22 presses the first contact surface 24 of the first pin 21 in the direction of the first axis L11, and the second axis L12 of the second pin 22. The first pin 21 is moved in the direction of the first axis L11 by a distance corresponding to the amount of movement in the direction to press the distal end portion 16a of the needle gathering plate 16, and the side where the needle gathering plate 16 is close to the sewing needle 12 And the sewing needle 12 can be guided to the optimum needle moving position by the needle moving plate 16.
　また、針寄せ板１６を縫い針１２に対して離反する方向へ移動させる場合には、第２ピン２２の工具嵌合部２６に前記工具を嵌合させて、第２ピン２２が螺退する方向に操作することによって、第２ピン２２の第２接触面２５が第１ピン２１の第１接触面２４から離反する方向へ移動するが、第１ピン２１は、針寄せ板１６の先端部１６ａによって弾発的に押圧されているので、第１ピン２１は、第１接触面２４を第２ピン２２の第２接触面２５に接触した状態を維持したまま、第２軸線Ｌ１２に近接する方向へ移動する。 Further, when the needle moving plate 16 is moved in a direction away from the sewing needle 12, the tool is fitted to the tool fitting portion 26 of the second pin 22, and the second pin 22 is screwed out. By operating in the direction, the second contact surface 25 of the second pin 22 moves in a direction away from the first contact surface 24 of the first pin 21. Since it is elastically pressed by 16a, the 1st pin 21 adjoins the 2nd axis L12, maintaining the state where the 1st contact surface 24 contacted the 2nd contact surface 25 of the 2nd pin 22 Move in the direction.
　このような第１ピン２１の第２軸線Ｌ１２に近接する方向の移動は、第２ピン２２の第２軸線Ｌ１２方向への移動量に対応し、第２ピン２２を螺退させる方向の操作量に対応する距離だけ、第１ピン２１を第１軸線Ｌ１１方向へ待避させることができる。 Such movement of the first pin 21 in the direction approaching the second axis L12 corresponds to the amount of movement of the second pin 22 in the direction of the second axis L12, and the operation amount in the direction in which the second pin 22 is screwed out. The first pin 21 can be retracted in the direction of the first axis L11 by a distance corresponding to.
　このように第２ピン２２の螺進または螺退させる操作量に応じて第１ピン２１を第１軸線方向へ移動させ、針寄せ板１６の撓み量を高精度で円滑に微調整することができる。また、前記従来技術のように球体を用いずに、針寄せ板１６の撓み量を第１ピン２１および第２ピン２２によって変化させることができるので、部品点数を削減して構成を簡素化することができる。第１ピン２１および第２ピン２２などの部品の交換を容易に行うことができ、メンテナンス性を向上することができる。 In this way, the first pin 21 is moved in the first axial direction in accordance with the operation amount of the second pin 22 being screwed or retreated, and the amount of deflection of the needle moving plate 16 can be finely adjusted smoothly with high accuracy. it can. Further, since the amount of deflection of the needle moving plate 16 can be changed by the first pin 21 and the second pin 22 without using a sphere as in the prior art, the number of parts is reduced and the configuration is simplified. be able to. Parts such as the first pin 21 and the second pin 22 can be easily exchanged, and maintainability can be improved.
　図８は、本発明の他の実施形態の針寄せ位置調整装置１０Ａの構成を示す拡大断面図である。なお、前述の実施形態に対応する部分には同一の参照符を付し、重複する説明は省略する。本実施形態の針寄せ位置調整装置１０Ａは、第１ピン２１の第１接触面２４の頂角αが、１１０°～１５０°に選ばれ、好ましくは１２０°～１４０°に選ばれる。また第２ピン２２の第２接触面２５の頂角βは、第１接触面２４の頂角αの補角であって、７０°～３０°に選ばれ、好ましくは６０°～４０°に選ばれる。第１ピン２１の直径Ｄ１および第２ピン２２の直径（呼び径）Ｄ２は、前述の実施形態と同様である。 FIG. 8 is an enlarged cross-sectional view showing a configuration of a needle shifting position adjusting apparatus 10A according to another embodiment of the present invention. Note that portions corresponding to the above-described embodiment are denoted by the same reference numerals, and redundant description is omitted. In the needle shift position adjusting device 10A of the present embodiment, the apex angle α of the first contact surface 24 of the first pin 21 is selected to be 110 ° to 150 °, preferably 120 ° to 140 °. The apex angle β of the second contact surface 25 of the second pin 22 is a complement angle of the apex angle α of the first contact surface 24, and is selected from 70 ° to 30 °, preferably 60 ° to 40 °. To be elected. The diameter D1 of the first pin 21 and the diameter (nominal diameter) D2 of the second pin 22 are the same as in the above-described embodiment.
　このような構成によれば、第２ピン２２の移動量δｘに対して第１ピン２１の移動量δｙを、図７のラインｍ２で示すように小さくし、針寄せ板１６の撓み量をより高精度で微調整することができる。 According to such a configuration, the movement amount δy of the first pin 21 is made smaller than the movement amount δx of the second pin 22 as shown by the line m2 in FIG. Fine adjustment can be made with high accuracy.
　本発明の他の実施形態では、第１ピン２１の端面２３が第１軸線Ｌ１１方向他端部２１ｂに向って凸に湾曲する曲面で構成されてもよい。これによって、針寄せ板１６の先端部１６ａが振動などによって第１ピン２１の端面２３上でずれてしまうことが抑制され、針寄せ板１６の撓みが縫製時に不所望に変動することが防がれる。 In another embodiment of the present invention, the end surface 23 of the first pin 21 may be formed of a curved surface that is convexly curved toward the other end portion 21b in the first axis L11 direction. As a result, it is possible to prevent the distal end portion 16a of the needle moving plate 16 from being displaced on the end surface 23 of the first pin 21 due to vibration or the like, and to prevent the bending of the needle moving plate 16 from undesirably changing during sewing. It is.
　本発明の他の実施形態では、針寄せ板１６の先端部１６ａが第１ピン２１の端面２３に向って凸に湾曲した曲面で構成される。これによって、針寄せ板１６の先端部１６ａを第１ピン２１の端面２３に接触させた状態で、円滑に移動させることができるともに、針寄せ板１６の先端部１６ａの振動などによって第１ピン２１の端面２３上でずれることを抑制して、針寄せ板１６の撓みの不所望な変動を防止することができる。 In another embodiment of the present invention, the distal end portion 16a of the needle moving plate 16 is configured by a curved surface that is convexly curved toward the end surface 23 of the first pin 21. As a result, the tip 16a of the needle moving plate 16 can be smoothly moved while being in contact with the end surface 23 of the first pin 21, and the first pin can be moved by vibration of the tip 16a of the needle moving plate 16 or the like. It is possible to suppress the deviation on the end face 23 of 21 and to prevent undesired fluctuations in the deflection of the needle moving plate 16.
　本発明は、その精神または主要な特徴から逸脱することなく、他のいろいろな形態で実施できる。したがって、前述の実施形態はあらゆる点で単なる例示に過ぎず、本発明の範囲は請求の範囲に示すものであって、明細書本文には何ら拘束されない。さらに、請求の範囲に属する変形や変更は全て本発明の範囲内のものである。 The present invention can be implemented in various other forms without departing from the spirit or main features thereof. Therefore, the above-described embodiment is merely an example in all points, and the scope of the present invention is shown in the scope of claims, and is not restricted by the text of the specification. Further, all modifications and changes belonging to the claims are within the scope of the present invention.
　１０，１０Ａ　位置調整装置
　１１　水平全回転かま
　１２　縫い針
　１３　針棒
　１４　下軸
　１５　剣先部
　１６　針寄せ板
　１７　外かま
　１８　内かま
　２１　第１ピン
　２１ａ　第１ピン２１の一端部
　２１ｂ　第１ピン２１の他端部
　２２　第２ピン
　２２ａ　第２ピン２２の一端部
　２２ｂ　第２ピン２２の他端部
　２３　端面
　２４　第１接触面
　２５　第２接触面
　２６　工具嵌合部
　２６ａ　嵌合孔
　３０　挿入孔 DESCRIPTION OF SYMBOLS 10,10A Position adjustment apparatus 11 Horizontal full rotation hook 12 Sewing needle 13 Needle bar 14 Lower shaft 15 Blade tip part 16 Needle tip plate 17 Outer hook 18 Inner hook 21 First pin 21a One end part 21b First pin 21 Other end portion 22 Second pin 22a One end portion 22b of the second pin 22 The other end portion 23 of the second pin 22 23 End surface 24 First contact surface 25 Second contact surface 26 Tool fitting portion 26a Fitting hole 30 Insertion hole
　３１　取付け部
　３２　底部
　３３　軌溝
　３４　周壁部
　３５　スタッド
　３６　案内軸
　３７　ラッチばね
　３８　ラッチピン
　３９　ラッチ片
　４０　周壁部
　４１　軌条
　４２　押えばね
　４３　ボビン
　４６　挿通孔
　４７　ねじ孔
　Ａ　回転方向
　Ｌ１　針棒１３の軸線
　Ｌ２　回転軸線
　Ｌ１１　第１軸線
　Ｌ１２　第２軸線 31 Mounting portion 32 Bottom portion 33 Rail groove 34 Peripheral wall portion 35 Stud 36 Guide shaft 37 Latch spring 38 Latch pin 39 Latch piece 40 Peripheral wall portion 41 Rail 42 Presser spring 43 Bobbin 46 Insertion hole 47 Screw hole A Rotation direction L1 Axis L2 of needle bar 13 Rotation axis L11 1st axis L12 2nd axis

Claims (4)

  1. 　縫い針が取付けられる針棒の軸線に平行な回転軸線まわりに回転駆動される下軸に固定され、前記下軸の回転方向下流側に先端部を向けて先細状となる剣先部を有する外かまであって、前記剣先部よりも前記回転方向下流側に、前記回転方向上流側に先端部を向けて先細状となる針寄せ板が配設される外かまを備える水平全回転かまに設けられる針寄せ位置調整装置であって、
    　前記外かまに、前記回転軸線に垂直な仮想一平面上で、前記回転軸線を中心とする一半径線に交差する第１軸線方向に変位可能に保持される第１ピンであって、前記第１軸線方向一端部に、前記針寄せ板の先端部を支持する端面が形成され、前記第１軸線方向他端部に、円錐状の第１接触面が形成される第１ピンと、
    　前記外かまに、前記第１軸線に直交する第２軸線方向に変位可能に螺着される第２ピンであって、前記第２軸線方向一端部に、前記第１ピンの第１接触面に接触する円錐状の第２接触面が形成され、前記第２軸線方向他端部に、該第２ピンを前記第２軸線方向に螺進および螺退させるための工具を嵌合させる工具嵌合部が設けられる第２ピンと、を含むことを特徴とする針寄せ位置調整装置。     It is fixed to a lower shaft that is driven to rotate around a rotation axis parallel to the axis of the needle bar to which the sewing needle is attached, and has an outer sword tip that tapers toward the downstream side in the rotation direction of the lower shaft. Furthermore, it is provided in a horizontal all-rotation rotary hook provided with an outer hook in which a tapered end plate is disposed with the tip portion directed toward the upstream side in the rotational direction on the downstream side in the rotational direction from the sword tip. A needle position adjustment device,
    A first pin held on the outer hook so as to be displaceable in a first axis direction intersecting a radius line centered on the rotation axis on a virtual one plane perpendicular to the rotation axis; An end surface that supports a tip end portion of the needle moving plate is formed at one end in one axial direction, and a first pin that has a conical first contact surface formed at the other end in the first axial direction;
    A second pin screwed to the outer hook so as to be displaceable in a second axial direction perpendicular to the first axis, and is disposed at one end of the second axial direction on a first contact surface of the first pin. A tool fitting in which a conical second contact surface is formed and a tool for screwing and unscrewing the second pin in the second axial direction is fitted to the other end in the second axial direction And a second pin provided with a portion.
  2. 　前記第１ピンの前記端面は、前記第１軸線に垂直な平面であることを特徴とする請求項１に記載の針寄せ位置調整装置。 The needle shift position adjusting device according to claim 1, wherein the end surface of the first pin is a plane perpendicular to the first axis.
  3. 　前記第１ピンの前記端面は、前記第１軸線方向他端部に向って凸に湾曲する曲面であることを特徴とする請求項１に記載の針寄せ位置調整装置。 The needle shift position adjusting device according to claim 1, wherein the end surface of the first pin is a curved surface that is convexly curved toward the other end in the first axial direction.
  4. 　前記針寄せ板の前記先端部は、前記第１ピンの前記端面に向って凸に湾曲した曲面であることを特徴とする請求項１～３のいずれか１つに記載の針寄せ位置調整装置。 The needle shift position adjusting device according to any one of claims 1 to 3, wherein the tip portion of the needle shift plate is a curved surface that is convexly curved toward the end surface of the first pin. .
PCT/JP2013/064947 2013-05-29 2013-05-29 Needle-handler position adjusting device WO2014192108A1 (en)

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EP13885878.2A EP3006616B1 (en) 2013-05-29 2013-05-29 Needle-handler position adjusting device
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PCT/JP2013/064947 WO2014192108A1 (en) 2013-05-29 2013-05-29 Needle-handler position adjusting device
JP2015519551A JP6343278B2 (en) 2013-05-29 2013-05-29 Needle shifting position adjustment device

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6414378U (en) * 1987-04-23 1989-01-25
JP2003000981A (en) * 2001-06-18 2003-01-07 Sabun Kogyosho:Kk Horizontally rotating shuttle of sewing machine
JP2004229874A (en) 2003-01-30 2004-08-19 Sabun Kogyosho:Kk Horizontal rotary hook of sewing machine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD104574A1 (en) * 1973-01-22 1974-03-12
JP3866970B2 (en) * 2001-12-20 2007-01-10 Ｊｕｋｉ株式会社 Lockstitch machine with cloth edge cutting device
ITMI20020456A1 (en) * 2002-03-06 2003-09-08 Daniele Cerliani VERTICAL AXIS CROCHET FOR KNITTED STITCH SEWING MACHINE WITH NEEDLE-SAVING SHEET ADJUSTABLE SCREW PERIPHERAL
JP2005261847A (en) * 2004-03-22 2005-09-29 Hirose Mfg Co Ltd Shuttle and outside shuttle of sewing machine
JP4455175B2 (en) * 2004-06-08 2010-04-21 Ｊｕｋｉ株式会社 Sewing machine opener
JP4702606B2 (en) * 2005-05-27 2011-06-15 ブラザー工業株式会社 Hole throat plate throat plate height adjustment mechanism
JP2008000830A (en) * 2006-06-20 2008-01-10 Mitsubishi Materials Corp Insert for spherical surface cutter and insert detachable type spherical surface cutter
JP5048287B2 (en) * 2006-08-17 2012-10-17 株式会社廣瀬製作所 Full rotation pot
CN201686830U (en) * 2010-05-28 2010-12-29 启翔针车（上海）有限公司 Adjusting device for protective faller of mrotating shuttle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6414378U (en) * 1987-04-23 1989-01-25
JP2003000981A (en) * 2001-06-18 2003-01-07 Sabun Kogyosho:Kk Horizontally rotating shuttle of sewing machine
JP2004229874A (en) 2003-01-30 2004-08-19 Sabun Kogyosho:Kk Horizontal rotary hook of sewing machine

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