WO2018105405A1 - ミシン - Google Patents
ミシン Download PDFInfo
- Publication number
- WO2018105405A1 WO2018105405A1 PCT/JP2017/042055 JP2017042055W WO2018105405A1 WO 2018105405 A1 WO2018105405 A1 WO 2018105405A1 JP 2017042055 W JP2017042055 W JP 2017042055W WO 2018105405 A1 WO2018105405 A1 WO 2018105405A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sewing
- support arm
- needle
- sewing machine
- support member
- Prior art date
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Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B73/00—Casings
- D05B73/04—Lower casings
- D05B73/12—Slides; Needle plates
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/02—Presser-control devices
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C9/00—Appliances for holding or feeding the base fabric in embroidering machines
- D05C9/02—Appliances for holding or feeding the base fabric in embroidering machines in machines with vertical needles
- D05C9/04—Work holders, e.g. frames
- D05C9/06—Feeding arrangements therefor, e.g. influenced by patterns, operated by pantographs
Definitions
- the present invention relates to a sewing machine, and more particularly to a mechanism for supporting a sewing object in the sewing machine.
- FIG.6 and FIG.7 is a figure explaining the template 30 used for sewing of shoes as an example.
- the template 30 includes a lower plate 27 and an upper plate 29 attached to the lower plate 27 with a hinge.
- a pattern hole 26 corresponding to a pattern of stitching S for sewing the sewing mold K to the base fabric H is formed in the lower plate 27.
- the upper plate 29 has a punching hole 28 that substantially matches the shape of the sewing piece K, and the sewing piece K is positioned with respect to the base fabric H by the punching hole 28.
- the base fabric H is placed on the lower plate 27 in accordance with the guide pins 31 provided on the upper surface of the lower plate 27, the upper plate 29 sandwiches the placed base fabric H, and the By inserting the sewing piece K into the hole 28 of the upper plate 29, the base cloth H and the sewing piece K are set on the template 30. While the holding frame for holding the template 30 is moved based on the pattern data corresponding to the pattern of the stitching S, the stitching piece K is formed by applying the stitching S to the sewing piece K by a known sewing mechanism. It can be sewn to the base fabric H.
- Patent Document 1 supports a sewing object from below by an annular sleeve that can be displaced to a position protruding from a needle plate, thereby preventing or suppressing the displacement of the sewing object. It is disclosed.
- Patent Document 2 a cloth receiving device that can swing up and down is provided below the sewing work surface, and the sewing object is being sewn by holding the sewing object between both the cloth pressing device and the cloth receiving device. It is disclosed that it is not displaced downward.
- Patent Document 1 has a structure in which the annular sleeve is lifted by moving the slider having the inclined surface at the tip in the lateral direction and causing the inclined surface to enter the lower portion of the annular sleeve. It is difficult to change the size. Further, in the configuration of Patent Document 1, a lateral force is applied to the lower portion of the annular sleeve when the annular sleeve is lifted. Since there is a backlash between the annular sleeve and the insertion hole, the annular sleeve does not rise vertically but rises in an oblique posture due to the lateral force. This causes needle breakage due to contact between the annular sleeve and the sewing needle.
- the cloth receiving device of Patent Document 2 includes a cloth receiver at substantially the center of an arm-shaped cloth receiving base extending in the lateral direction, with one end of the cloth receiving base serving as a swing fulcrum, and the other end of the cloth receiving base being moved up and down. And the mechanism is complicated. Moreover, since the cloth receiving device of Patent Document 2 increases in size in the lateral direction, it is not suitable for a multi-head sewing machine in which a plurality of heads are arranged in parallel. Further, in the cloth receiving device of Patent Document 2, since the cloth receiving base is located in front of the hook, the cloth receiving base becomes an obstacle, and it is not possible to provide a known bobbin changing mechanism for removing the bobbin from the hook. .
- the cloth receiving device of Patent Document 2 uses the one end of the arm-shaped cloth receiving base extending in the lateral direction as a swing fulcrum, and swings the other end of the cloth receiving base up and down, so that Since the structure is switched to the lower retreat position, the cloth cradle does not move in parallel during the lifting and lowering.
- the cloth cradle is substantially horizontal only at a predetermined height position, and otherwise, the cloth cradle is inclined obliquely (see FIGS. 3 and 4 of Patent Document 2). Therefore, even if the height of the cloth cradle is changed in accordance with the thickness of the template in Patent Document 2, the position of the cloth cradle is displaced from the needle depending on the height of the cloth cradle.
- the present invention has been made in view of the above points, and an object of the present invention is to provide a sewing machine in which the height of a support member that supports a sewing object can be changed to a desired height.
- the present invention is a support member that can move up and down through an opening provided in a needle plate, and has an upper end surface for supporting an object to be sewn, and the upper end surface to allow passage of a needle that moves up and down.
- a sewing machine comprising: the support member including a provided needle hole; and an elevating mechanism that moves the support member up and down while maintaining the level of the upper end surface of the support member.
- the elevating mechanism moves the support member up and down while maintaining the level of the upper end surface of the support member. Therefore, even if the support member is moved to any height, the movement causes the needle to move up and down. The fall position and the needle hole are not displaced, and the upper end surface of the support member supports the sewing object in an appropriate posture, thereby preventing or suppressing the displacement of the sewing object. For this reason, for example, in sewing using a template, it is possible to deal with templates having various thicknesses. *
- the sewing machine of the present invention there is an excellent effect that the height of the support member that supports the sewing object can be changed to a desired height.
- FIG. 1 It is a front view of the sewing machine concerning one example of the present invention, and is a figure extracting and showing a mechanism provided below.
- the side view which looked at the sewing machine of FIG. 1 from arrow A.
- FIG. The top view which looked at the sewing machine of FIG.
- the exploded perspective view which extracts and shows a supporting member and a raising / lowering mechanism.
- A) is a figure explaining the retracted position of a supporting member
- B is a figure explaining the highest position of a supporting member.
- Comprising The disassembled perspective view of the template used for sewing. It is a figure explaining a prior art, Comprising: The figure which looked at the template of FIG. 6 from the top.
- FIG. 1 is a front view showing a partial cross section of a main part of a sewing machine according to an embodiment.
- the illustration of a sewing head provided above the sewing machine is omitted for the sake of convenience, and a sewing machine table 2 provided below the sewing machine. And the mechanism relevant to the pot base 1 is extracted and shown.
- 2 shows a side view of the sewing machine of FIG. 1 viewed from the arrow A
- FIG. 3 shows a plan view of the sewing machine of FIG.
- This sewing machine may be a single-head sewing machine having only one sewing head or a multi-head sewing machine having a plurality of sewing heads.
- a sewing head (not shown) of the sewing machine is provided with a needle bar (not shown) provided with a needle (reference numeral 50 in FIG. 5 described later) for sewing an object to be sewn (hereinafter also referred to as “sewing object”).
- the pot base 1 is disposed immediately below the sewing head.
- the pot base 1 is fixed to the upper surface of the lower frame 3 located below the sewing machine table 2.
- a needle plate 4 is fixed on the upper surface of the pot base 1 so as to substantially coincide with the upper surface of the sewing machine table 2, and a vertical hook 5 is disposed below the needle plate 4.
- the vertical hook 5 includes an inner hook and an outer hook, and the outer hook is rotatably supported by the pot base 1 and is rotated by the rotational force of the drive shaft 6 that is penetrated and supported by the pot base 1. .
- the inner hook is fitted in the outer hook so as to be relatively rotatable, and is prevented from rotating together with the outer hook by a hook support 7 attached to the pot base 1.
- the sewing machine of the present invention is a support member 19 that can move up and down through an opening 24 provided in the needle plate 4, and passes through an upper end surface 22 for supporting a sewing object and a needle 50 that moves up and down.
- the support member 19 including the needle hole 23 provided in the upper end surface 22 so as to allow, and the elevating mechanism 40 that moves the support member 19 up and down while maintaining the level of the upper end surface 22 of the support member 19. It is characterized by having.
- the support member 19 is referred to as a “support arm 19”
- the upper end surface 22 is referred to as a “cloth receiving surface 22”.
- FIG. 4 is an exploded perspective view showing an example of the support arm and the lifting mechanism.
- a square-shaped mounting base 8 is fixed to the right side surface of the pot base 1.
- the attachment base 8 is fixed to the pot base 1 with screws, for example, at the rear end portion 8b so that the front end portion 8a projects toward the front of the sewing machine.
- An elongate support base 9 extending in the vertical direction is fixed to the front end 8a of the mounting base 8.
- a guide member 12 composed of a slide rail 10 extending linearly along the vertical direction and a slide body 11 slidable along the slide rail 10 is fixed to the support base 9 by screws, for example. Yes.
- An elevating member 13 is attached to the sliding body 11.
- the elevating member 13 has a substantially L-shaped elongated shape that extends in the vertical direction as a whole and has an upper end bent leftward when viewed from the front of the sewing machine.
- the upper end portion of the elevating member 13 is a mounting surface 14 that is substantially parallel to the sewing machine table 2 (needle plate 4).
- the lower end of the elevating member 13 is connected to the free end of the drive lever 16 via the link lever 15.
- the drive lever 16 is fixed to an output shaft 18 of a motor 17 fixed to the front surface of the lower frame 3, and when the motor 17 is driven to reciprocate and swing the drive lever 16 within a predetermined angle range, It moves up and down along the slide rail 10.
- the mounting base 8, the support base 9, the guide member 12 (the slide rail 10 and the sliding body 11), the elevating member 13, the link lever 15, the drive lever 16, and the motor 17 are the elevating mechanism 40.
- a support arm 19 made of an arm member extending in the lateral direction with respect to the sewing machine is fixed to the attachment surface 14 at the upper end of the elevating member 13.
- the support arm 19 is fixed to the upper surface of the mounting surface 14 with a screw 20 at a connecting portion 19a at one end (right end when viewed from the front surface of the sewing machine). That is, as shown in FIG. 1 etc., the support arm 19 is attached to the elevating mechanism 40 (the upper end of the elevating member 13) at one end in a cantilever manner.
- the lifting mechanism 40 supports the support arm 19 in a direction substantially perpendicular to the slide rail 10.
- the support arm 19 includes an arm portion 19b extending from the coupling portion 19a so as to extend obliquely to the left when viewed from the front surface of the sewing machine, and at the tip of the horizontal portion 19c of the arm portion 19b (the left end when viewed from the front surface of the sewing machine).
- a support member 21 is provided.
- the support member 21 is formed of a cylindrical portion protruding upward, and includes a cloth receiving surface 22 on the upper surface thereof.
- the cloth receiving surface 22 is a portion for supporting the sewing product, and is formed so as to be substantially parallel to the sewing machine table 2 (needle plate 4).
- a needle hole 23 is provided in the center of the support member 21 so as to allow passage of a vertically moving needle (reference numeral 50 in FIG. 5).
- the support arm 19 is attached to the elevating mechanism 40 so that the needle hole 23 is located at the needle drop position. Therefore, the needle (reference numeral 50 in FIG. 5) passes through the needle hole 23 when passing through the workpiece supported by the cloth receiving surface 22.
- the needle plate 4 is provided with an opening 24 corresponding to the needle drop position and the support arm 19.
- a through hole 24 a through which the needle and the support member 21 are inserted and a through hole 24 b cut out along the shape of the support arm 19 are integrally formed. Therefore, the support arm 19 can move up and down through the opening 24 provided in the needle plate 4.
- the needle plate 4 is provided with a relief hole 25 at a corresponding position of the screw 20 so that the screw 20 does not hit the needle plate 4 when the support arm 19 is raised.
- the elevating mechanism 40 can move the support arm 19 up and down while maintaining the level of the cloth receiving surface 22 of the support arm 19.
- the sewing machine moves the upper thread attached to the needle (reference numeral 50 in FIG. 5) of the needle bar and the vertical hook 5 corresponding to the needle bar in accordance with the vertical drive of the needle bar (not shown).
- the set lower thread is intertwined, sewing is performed on the workpiece.
- parts may be superimposed and sewn on the product body (base fabric H).
- the template 30 shown in FIGS. 6 and 7 is used.
- the template 30 includes a lower plate 27 and an upper plate 29.
- the base fabric H is placed on the upper surface of the lower plate 27, and is sandwiched by the upper plate 29.
- the template 30 is held by a holding frame and is arranged at a position below the sewing head on the sewing work surface of the sewing machine, that is, the upper surface of the sewing machine table 2 (needle plate 4).
- the sewing machine sews the sewing piece K to the base fabric H by stitching S by performing a sewing operation while moving the holding frame that holds the template 30 based on the pattern data indicating the pattern of the stitching S. wear.
- the base fabric H placed on the upper surface of the lower plate 27 floats from the needle plate 4 by the thickness of the lower plate 27. For this reason, when the sewing using the template 30 is performed (when the needle penetrates the workpiece), the base cloth H is supported from below by the cloth receiving surface 22 of the support arm 19.
- FIG. 5A shows a state where the support arm 19 is lowered to the retracted position
- FIG. 5B shows a state where the support arm 19 is raised to the uppermost position
- reference numeral 27 denotes a lower plate of the template 30
- H denotes a base cloth
- 29 denotes an upper plate
- K denotes a sewn piece.
- the support arm 19 is located below the needle plate 4.
- the support arm 19 is lowered to a position where the upper surface of the needle plate 4 and the cloth receiving surface 22 of the support member 21 are flush with each other in order to prevent interference with the lower plate 27 of the template 30.
- the support arm 19 is inserted into the through hole 24b in the opening 24 of the needle plate 4, and the support member 21 is inserted through the through hole 24a and protrudes above the needle plate 4.
- the cloth receiving surface 22 abuts on the back surface of the base cloth H and supports the base cloth H from below.
- the uppermost position (height) of the support arm 19 can be set to a desired height by stroke control of the lifting mechanism 40.
- the height of the support arm 19 is set from, for example, a sewing machine operation panel (not shown). In one example, the height of the support arm 19 can be set in the range of 0 mm to 4 mm in accordance with the thickness of a general template (upper plate, lower plate).
- a control system (not shown) controls the swing angle of the drive lever 16 of the motor 17 based on a set value input from an operation panel (not shown). As the elevating member 13 attached to the sliding body 11 on the slide rail 10 rises according to the swing angle of the drive lever 16, the support arm 19 rises to a height corresponding to the set value. Thereby, the cloth receiving surface 22 at the tip of the support arm 19 protrudes above the needle plate 4 at a height corresponding to an arbitrary set value.
- the vertical movement of the support arm 19 is performed in synchronization with the raising and lowering of the needle 50 as an example.
- the support arm 19 repeats raising and lowering for each needle. That is, when the needle 50 is in the raised position, as shown in FIG. 5A, the support arm 19 is lowered to the retracted position, and when the needle 50 is lowered and stabbed into the sewing piece K, FIG. Thus, the support arm 19 is raised to the uppermost position.
- the tip of the needle 50 passes through the workpiece (the base cloth H and the sewing piece K) and passes through the needle hole 23 of the support arm 19.
- the base fabric H sinks due to the penetration resistance of the needle 50 or the like even when the base fabric H is floating from the needle plate 4.
- the displacement of the sewing product (base fabric H and sewing piece K) such as the posture deviation (inclination) of the sewing piece K associated with it is prevented or suppressed.
- hook 50 slipping off from the sewing piece K etc. can be prevented or suppressed. As a result, it is possible to prevent seam defects such as seam slippage and stitch skipping.
- the raising and lowering of the support arm 19 may not be synchronized with the raising and lowering of the needle 50, and the sewing operation may be performed while the support arm 19 is raised to the uppermost position in FIG.
- the sewing operation may be performed while the support arm 19 is raised to the uppermost position.
- the sewing machine moves the template 30 based on the pattern data while raising the support arm 19 to the uppermost position in FIG. And stitching S on the sewn piece K).
- the support arm 19 may be lowered to the retracted position each time.
- the support arm 19 is moved up and down while the cloth receiving surface 22 of the support arm 19 is maintained horizontal by the elevating mechanism 40, so that the support arm 19 is moved to any height.
- the needle drop position and the needle hole 23 are not shifted by the movement, and the support arm 19 supports the sewing product in an appropriate posture, thereby preventing or suppressing the displacement of the sewing product. it can. Therefore, for example, in the sewing using the template 30, the height of the support arm 19 can be changed to a desired height corresponding to the template having various thicknesses. Therefore, the present invention is suitable for sewing using the template 30.
- the structure in which the support arm 19 is attached to the lifting mechanism 40 in a cantilever manner makes it possible to arrange the lifting mechanism 40 on the side (the right side surface in FIG. 1) in the pot base 1. For this reason, the support arm 19 and the elevating mechanism 40 do not obstruct the front of the vertical shuttle 5. Therefore, even if the sewing machine of this embodiment is configured to include the support arm 19 and the lifting mechanism 40, it is possible to provide a well-known bobbin replacement mechanism that detaches the bobbin from the vertical shuttle 5. Further, the configuration in which the support arm 19 is moved up and down in the vertical direction by the slide rail 10 of the elevating mechanism 40 does not increase in size in the lateral direction. Therefore, the configuration of the support arm 19 and the lifting mechanism 40 shown in the embodiment is also suitable for a multi-head sewing machine in which a plurality of sewing heads are arranged in parallel.
- the support arm 19 can move up and down through an opening 24 provided in the needle plate 4 and allows the cloth receiving surface 22 for supporting the sewing object and the needle 50 moving up and down to pass therethrough.
- the elevating mechanism 40 is not limited to the mechanism composed of the slide rail 10, and the support arm 19 is moved up and down while maintaining the level of the cloth receiving surface 22 of the support arm 19 such as a rack and pinion mechanism, a belt, or a chain. Any mechanism may be used as long as it can move.
- the guide member 12 (slide rail 10 and sliding body 11) portion may be formed of an electric linear motor.
- the structure of the lifting mechanism 40 can be further simplified.
- the direction of the vertical movement of the support arm 19 by the lifting mechanism 40 is not limited to the vertical direction as long as the cloth receiving surface 22 is kept horizontal.
- the slide rail 10 may be disposed obliquely with respect to the vertical direction, and the support arm 19 may be moved up and down along the slide rail 10.
- the sewing performed by the sewing machine is not limited to the sewing using the template 30.
- the sewing machine according to the present invention is not limited to a normal sewing machine, but includes an embroidery machine and other special sewing machines within the scope thereof.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
Description
Claims (4)
- 針板に設けられた開口を通って上下動可能な支持部材であって、縫製対象物を支持するための上端面と、上下動する針の通過を許すように前記上端面に設けられた針孔とを含む前記支持部材と、
前記支持部材の前記上端面の水平を維持しつつ、該支持部材を上下動する昇降機構
を備えるミシン。 - 前記支持部材は、ミシンに対して横方向に延びるアーム部材からなり、該アーム部材の一端において前記昇降機構に片持ち状に取り付けられ、前記アーム部材の他端において前記上端面及び前記針孔を有する、請求項1に記載のミシン。
- 前記昇降機構は、直線状に延びたスライドレールを含み、前記支持部材を該スライドレールに対して略垂直方向に支持し、且つ、該支持部材を前記スライドレールに沿って上下動する、請求項1又は2に記載のミシン。
- 前記支持部材の最上位位置を可変設定できる、請求項1乃至3の何れかに記載のミシン。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201780003460.1A CN108401435B (zh) | 2016-12-08 | 2017-11-22 | 缝纫机 |
KR1020187008982A KR101996193B1 (ko) | 2016-12-08 | 2017-11-22 | 미싱 |
DE112017006209.8T DE112017006209T5 (de) | 2016-12-08 | 2017-11-22 | Nähmaschine |
JP2018554919A JP7022995B2 (ja) | 2016-12-08 | 2017-11-22 | ミシン |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016238577 | 2016-12-08 | ||
JP2016-238577 | 2016-12-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018105405A1 true WO2018105405A1 (ja) | 2018-06-14 |
Family
ID=62490986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2017/042055 WO2018105405A1 (ja) | 2016-12-08 | 2017-11-22 | ミシン |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP7022995B2 (ja) |
KR (1) | KR101996193B1 (ja) |
CN (1) | CN108401435B (ja) |
DE (1) | DE112017006209T5 (ja) |
TW (1) | TWI748010B (ja) |
WO (1) | WO2018105405A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0716365A (ja) * | 1993-06-30 | 1995-01-20 | Pegasus Sewing Mach Mfg Co Ltd | 2本針二重環縫いミシンの針板 |
JP2000197789A (ja) * | 1998-12-29 | 2000-07-18 | Brother Ind Ltd | ミシンの針板構造 |
JP2017184980A (ja) * | 2016-04-05 | 2017-10-12 | Juki株式会社 | ミシン |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS556671A (en) | 1978-06-30 | 1980-01-18 | Fujitsu Ltd | Data processing system |
DE8710148U1 (de) * | 1987-07-24 | 1987-09-17 | Pfaff Industriemaschinen Gmbh, 6750 Kaiserslautern | Nähmaschine mit einem Stichplatteneinsatz |
JPH04300581A (ja) * | 1991-03-29 | 1992-10-23 | Aisin Seiki Co Ltd | ミシンの布挟持装置 |
JPH10179971A (ja) * | 1996-12-26 | 1998-07-07 | Juki Corp | ミシンの針板 |
JP4300581B2 (ja) | 2004-11-05 | 2009-07-22 | Tdkラムダ株式会社 | コンデンサ寿命予測装置とこれを用いた電源装置 |
JP4702606B2 (ja) * | 2005-05-27 | 2011-06-15 | ブラザー工業株式会社 | 穴かがりミシンのスロートプレート高さ調整機構 |
-
2017
- 2017-11-22 DE DE112017006209.8T patent/DE112017006209T5/de active Pending
- 2017-11-22 CN CN201780003460.1A patent/CN108401435B/zh active Active
- 2017-11-22 KR KR1020187008982A patent/KR101996193B1/ko active IP Right Grant
- 2017-11-22 WO PCT/JP2017/042055 patent/WO2018105405A1/ja active Application Filing
- 2017-11-22 JP JP2018554919A patent/JP7022995B2/ja active Active
- 2017-11-30 TW TW106141822A patent/TWI748010B/zh active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0716365A (ja) * | 1993-06-30 | 1995-01-20 | Pegasus Sewing Mach Mfg Co Ltd | 2本針二重環縫いミシンの針板 |
JP2000197789A (ja) * | 1998-12-29 | 2000-07-18 | Brother Ind Ltd | ミシンの針板構造 |
JP2017184980A (ja) * | 2016-04-05 | 2017-10-12 | Juki株式会社 | ミシン |
Also Published As
Publication number | Publication date |
---|---|
TWI748010B (zh) | 2021-12-01 |
JP7022995B2 (ja) | 2022-02-21 |
CN108401435B (zh) | 2021-11-26 |
TW201825732A (zh) | 2018-07-16 |
KR101996193B1 (ko) | 2019-07-03 |
CN108401435A (zh) | 2018-08-14 |
KR20180080188A (ko) | 2018-07-11 |
DE112017006209T5 (de) | 2019-08-22 |
JPWO2018105405A1 (ja) | 2019-10-24 |
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