CN1470701A - Cop-latch cover - Google Patents

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Publication number
CN1470701A
CN1470701A CNA031466540A CN03146654A CN1470701A CN 1470701 A CN1470701 A CN 1470701A CN A031466540 A CNA031466540 A CN A031466540A CN 03146654 A CN03146654 A CN 03146654A CN 1470701 A CN1470701 A CN 1470701A
Authority
CN
China
Prior art keywords
bottom line
shuttle
sleeve body
mentioned
shuttle sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA031466540A
Other languages
Chinese (zh)
Inventor
田岛郁夫
政史
长谷川政史
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TOWA INDUSTRIAL Co Ltd
Tokai Kogyo Sewing Machine Co Ltd
Original Assignee
TOWA INDUSTRIAL Co Ltd
Tokai Kogyo Sewing Machine Co Ltd
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 TOWA INDUSTRIAL Co Ltd, Tokai Kogyo Sewing Machine Co Ltd filed Critical TOWA INDUSTRIAL Co Ltd
Publication of CN1470701A publication Critical patent/CN1470701A/en
Pending legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B57/00—Loop takers, e.g. loopers
    • D05B57/26—Bobbin holders or casings; Bobbin holder or case guards; Bobbin discharge devices
    • 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
    • D05B57/16—Shuttles with bobbin casings guided in tracks
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B57/00—Loop takers, e.g. loopers
    • D05B57/28—Applications of bobbins for storing the lower thread
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B63/00—Devices associated with the loop-taker thread, e.g. for tensioning

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

Abstract

A robbin cover 40 is arranged at a robbin at the bottom of a pin plate, which is provided with a robbin cover body 42 and a bottom line guide device. The robbin cover body 42 takes in a bottom line robbin 50 inside. The bottom line guide device arranges a bottom line 52 of the bottom line robbin 50 at the pinhole of the pin plate through the robbin cover body. The bottom line guide device is provided with a bottom line guiding piece 44 fixed at the robbin cover body 42. The bottom line guiding piece 44 is provided with a guiding part 45 for turning the bottom line 52 to the pinhole. The guiding part 45 is arranged at a pinpoint bottom of a threading needle reaching the bottom dead point through the pinhole. Therefore, even in the occasion that the threading needle swings, the interference between the pinpoint and the bottom line guiding piece is prevented and the guide of the bottom line is processed stably and reliably.

Description

Shuttle sleeve
Technical field
The present invention relates to a kind of shuttle sleeve of in Sewing machines, accommodating the bottom line shuttle.
Background technology
The bottom line of drawing in the shuttle sleeve for make from the below of nail-plate position towards the nail hole for certain by the channeling conduct of bottom line guide.This bottom line guide generally uses the parts of coiled type, is fixed in the top of the front face side of shuttle sleeve.In addition, known have such technology (for example Japanese Utility Model is logined communique No. 2568827), wherein, by using the bottom line guide that spring materials such as steel wire is bent to S word shape, its shape simplified, and made bottom line be difficult for deviating from.
The bottom line guide has makes the guide part of direction of directional steering pin hole of the bottom line of drawing in the shuttle sleeve.This guide part preferably from its function consider to be configured to pin hole under.Yet, need avoid needle point and guide part interference by the eedle of pin hole decline, for this reason, the position of guide part is moved under pin hole towards the place ahead.
Made eedle produce the occasion of swing by certain reason in the process of making, the guide part of bottom line guide is interfered with the needle point of the eedle that arrives lower dead center, becomes the reason that pin fractures.Therefore, proposed not use separately the parts that form as the bottom line guide but form the bottom line gathering sill at shuttle sleeve self, make the technology that bottom line leads by this groove (Japan real open flat 6-31680 communique).Yet such bottom line gathering sill need form tunnel-like for bottom line is turned to, and there are restriction in direction, shape in place that the bottom line gathering sill is set and tunnel.For this reason, be unfavorable for stable and carry out the guiding of bottom line reliably and turn to.In addition, because the bottom line gathering sill is tunnel-shaped, so the operation that bottom line is passed is pretty troublesome.
The present invention makes in order to address the above problem, and its purpose is to provide a kind of shuttle sleeve of stablizing and carrying out the guiding of bottom line reliably.
Summary of the invention
The shuttle sleeve of the 1st aspect of the present invention is set to the shuttle that is disposed at the needle plate below; Wherein: have shuttle sleeve body and bottom line guider; This shuttle sleeve body is accommodated the bottom line shuttle in inside; This bottom line guider is used for will being wound up into the bottom line of bottom line shuttle towards the pin hole guiding of being located at above-mentioned needle plate by above-mentioned shuttle sleeve body; Above-mentioned bottom line guider has the bottom line guide that is fixed in above-mentioned shuttle sleeve body, this bottom line guide has the directional steering that is used to make bottom line to the guide part towards the direction of above-mentioned pin hole, the needle point below of the eedle when this guide part is in and arrives lower dead center by above-mentioned pin hole.
Constitute according to this, even produce the occasion of swing at eedle, its needle point can not interfered with the bottom line guide yet.For this reason, can not be subjected to the interference, stable and carry out the guiding of bottom line reliably of needle point.In addition, can prevent that the eedle that this interference causes from fractureing.
The bottom line guide is preferably in shuttle sleeve body front face side and is in substantially parallel relationship to the extension of needle plate face ground, and the bottom line guide is fixed an end at the shuttle sleeve body, and the other end forms above-mentioned guide part.
The design of the below of the needle point of the eedle when like this, being used to make guide part be positioned at the arrival lower dead center is easy.
In addition, the guide part of bottom line guide preferably becomes and can receive from being contained in the hook-type of the bottom line that the intrinsic bottom line shuttle of shuttle sleeve draws from the front face side of shuttle sleeve body.
Like this, it only is the simple operation of bottom line being guided to the guide part of hook-type from the front face side of shuttle sleeve body that operation that bottom line leads to the bottom line guide is become, and bottom line is difficult for deviating from from the bottom line guide.
In addition, the shuttle sleeve of the 2nd aspect of the present invention is set to the shuttle that is disposed at the needle plate below; Wherein: have shuttle sleeve body and bottom line guider; This shuttle sleeve body is accommodated the bottom line shuttle in inside; This bottom line guider is used for will being wound up into the bottom line of bottom line shuttle towards the pin hole guiding of being located at above-mentioned needle plate by above-mentioned shuttle sleeve body; Above-mentioned bottom line guider has the bottom line guide that is fixed in above-mentioned shuttle sleeve body and is located at the gathering sill of shuttle sleeve body, above-mentioned bottom line guide has the directional steering that is used to make bottom line to the guide part towards the direction of above-mentioned pin hole, this gathering sill carry out the bottom line of drawing from the bottom line shuttle from the bottom line shuttle to the guiding the bottom line guide.
According to this formation, bottom line arrives the bottom line guide from the bottom line shuttle through gathering sill, can be along not to rotatingly by sharp mouth being led reliably in the path that the hook of upper thread exerts an influence of being accompanied by shuttle (outer shuttle) by gathering sill.In addition, can bottom line be led in the direction that turns to of the bottom line that is suitable for being undertaken by the bottom line guide.For this reason, can stablize and carry out reliably the guiding of bottom line.
By the gathering sill of the 2nd aspect and the bottom line guide of the 1st aspect are made up, can stablize and carry out reliably the guiding of bottom line.
Description of drawings
Fig. 1 is the plane that the shuttle mechanism of Sewing machines is shown.
Fig. 2 is the front elevation that the shuttle mechanism of Sewing machines is shown.
Fig. 3 is the front elevation that shuttle sleeve is shown.
Fig. 4 is the plane that shuttle sleeve is shown.
Fig. 5 is the perspective view that shuttle sleeve is shown.
The specific embodiment
The following describes embodiments of the present invention.
Fig. 1 is the plane that the shuttle mechanism of Sewing machines is shown, and Fig. 2 is the front elevation that the shuttle mechanism of this Sewing machines is shown.Be positioned at sewing machine stand F (Fig. 2) top of the below of sewing machine head (not shown) by these shuttle supporting masses 10 that illustrate.At this fixing needle plate 12 above shuttle supporting mass 10, shuttle 30 is positioned at the below of this needle plate 12.As shown in Figure 2, have the pin hole 14 of inserting logical eedle 26 at needle plate 12, the needle point of eedle 26 drops to the front upper of shuttle 30 by this pin hole 14.
Lower shaft 16 is supported at position, rear at shuttle supporting mass 10 pivotally.In addition, the central part of shuttle supporting mass 10 relatively lower shaft 16 support shuttle axle 20 pivotally towards the direction of mutual axis orthogonal.Lower shaft 16 by as the motor (not shown) of the drive source of shuttle 30 towards a direction driving rotational.Relatively shuttle axle 20 with the revolution of this lower shaft 16 by being fixed in the engagement transmission of the helical gear 18,22 on each.
Shuttle 30 is installed on the end of shuttle axle 20, by the revolution of shuttle axle 20 make outer shuttle 32 in the outside of interior shuttle 36 towards a direction (in Fig. 2 for counterclockwise) revolution.At this moment, interior shuttle 36 can't help outer shuttle 32 join to the protuberance 38a of the shuttle frame 38 that will be fixed in shuttle supporting mass 10 pivotally in the front upper of shuttle 36.In addition, in interior shuttle 36, set the shuttle sleeve 40 of accommodating the bottom line shuttle.
Fig. 3 is the front elevation that shuttle sleeve 40 is shown, and Fig. 4 is the plane that shuttle sleeve 40 is shown, and Fig. 5 is the perspective view that shuttle sleeve 40 is shown.From these accompanying drawings as can be known, shuttle sleeve body 42 is the open circular cydariform of its rear side.The inside of relative shuttle sleeve body 42, bottom line shuttle 50 (Fig. 3) can be from open rear side turnover.But the bottom line shuttle 50 of accommodating is by the axle (not shown) free rotaring ground supporting that is in the central part in the shuttle sleeve body 42.
In the front upper of shuttle sleeve body 42, exist to be used to avoid the notch portion 42a that interferes with the needle point of eedle 26.In addition, be formed in the side of shuttle sleeve body 42 peripheries will roll up being drawn out to the line fairlead 42b (Fig. 5) of outside in the bottom line of bottom line shuttle 50.Equally, an end of below shuttle sleeve body 42 peripheries, using the clamp spring 42c of leaf spring by the screw fixed installation.Elastic force by this clamp spring 42c applies resistance to the bottom line by this place, produces predetermined tension force.
In the line fairlead 42b of shuttle sleeve body 42 peripheries side gathering sill 42f is set.The bottom line of outwards drawing from line fairlead 42b is directed to this gathering sill 42f.In addition, at the front face of shuttle sleeve body 42, the top 42d that faces toward notch portion 42a becomes parallel with the face of needle plate 12 substantially tabular surface.The position of close shuttle sleeve body 42 fronts of 42d forms recess 42e on this.
Bottom line guide 44 disposes abreast with top 42d substantially, and the one-sided wall of notch portion 42a is fixed in the one end, and the other end becomes the guide part 45 that bends to hook-type.Use metal wire rod (wire) at this bottom line guide 44, the cardinal principle central upper that guide part 45 is positioned at shuttle sleeve body 42 is under the cardinal principle of pin hole 14.
Guide part 45 forms the hook-type that turns back towards the anchor portion side of bottom line guide 44 then towards the 42 front bendings of shuttle sleeve body earlier.And the fore-end 45a of guide part 45 is slightly towards the below bending, enter into top 42d recess 42e (Fig. 3, Fig. 5).Between this fore-end 45a and recess 42e, guarantee the gap (Fig. 3) that bottom line passes through.The ground, needle point below of the eedle 26 when bottom line guide 44 makes its guide part 45 be in by pin hole 14 arrival lower dead center is installed.
Front face side at shuttle sleeve body 42 can the joint pin (not shown) handle knob 46 for the revolution fulcrum makes the leading section right-hand among the figure be provided with towards front pull-up ground.By this handles knob 46 towards the front pull-up, removing shuttle sleeve 40 mutually internally in the locking of shuttle 36, bottom line shuttle 50 is locked into the state that does not come off from shuttle sleeve 40.Can internal mutually shuttle 36 be pulled down by shuttle sleeve 40 with bottom line shuttle 50 thus.
In the shuttle sleeve 40 that constitutes like this, from line fairlead 42b be pulled out to outside the shuttle sleeve body 42 bottom line 52 (Fig. 3,5) gathering sill 42f by after be suspended to the guide part 45 of bottom line guide 44.The directional steering that is made bottom line 52 by this guide part 45 is with the pin hole 14 towards needle plate 12.Below the needle point of the eedle 26 when this guide part 45 is positioned at the arrival lower dead center as explained above in the start process of Sewing machines.For this reason, even the eedle in making 26 produces the occasion of the swing of fore-and-aft direction, its needle point is not interfered with guide part 45 yet, can prevent that the eedle that this interference causes from fractureing.
In addition, bottom line 52 makes line pass bottom line guide 44 by the simple operation that the front face side at shuttle sleeve body 42 is hooked into the guide part 45 of hook-type.And, the fore-end 45a of guide part 45 since relatively the recess 42e of shuttle sleeve body 42 have with gap slightly and enter, so the bottom line 52 that is hooked into guide part 45 is difficult for deviating from.

Claims (5)

1. a shuttle sleeve is set to the shuttle that is disposed at the needle plate below; It is characterized in that: have shuttle sleeve body and bottom line guider; This shuttle sleeve body is accommodated the bottom line shuttle in inside; This bottom line guider is used for will being wound up into the bottom line of bottom line shuttle towards the pin hole guiding of being located at above-mentioned needle plate by above-mentioned shuttle sleeve body; Above-mentioned bottom line guider has the bottom line guide that is fixed in above-mentioned shuttle sleeve body, this bottom line guide has the directional steering that is used to make bottom line to the guide part towards the direction of above-mentioned pin hole, the needle point below of the eedle when this guide part is in and arrives lower dead center by above-mentioned pin hole.
2. shuttle sleeve according to claim 1 is characterized in that: the bottom line guide is in substantially parallel relationship to needle plate face ground in shuttle sleeve body front face side and extends, and the bottom line guide is fixed an end at the shuttle sleeve body, and the other end forms above-mentioned guide part.
3. shuttle sleeve according to claim 1 and 2 is characterized in that: the guide part of bottom line guide becomes and can receive from being contained in the hook-type of the bottom line that the intrinsic bottom line shuttle of shuttle sleeve draws from the front face side of shuttle sleeve body.
4. according to any one described shuttle sleeve in the claim 1～3, it is characterized in that: the bottom line guider has the gathering sill of being located at the shuttle sleeve body, this gathering sill carry out the bottom line of drawing from the bottom line shuttle from the bottom line shuttle to the guiding the bottom line guide.
5. a shuttle sleeve is set to the shuttle that is disposed at the needle plate below; It is characterized in that: have shuttle sleeve body and bottom line guider; This shuttle sleeve body is accommodated the bottom line shuttle in inside; This bottom line guider is used for will being wound up into the bottom line of bottom line shuttle towards the pin hole guiding of being located at above-mentioned needle plate by above-mentioned shuttle sleeve body; Above-mentioned bottom line guider has the bottom line guide that is fixed in above-mentioned shuttle sleeve body and is located at the gathering sill of shuttle sleeve body, above-mentioned bottom line guide has the directional steering that is used to make bottom line to the guide part towards the direction of above-mentioned pin hole, this gathering sill carry out the bottom line of drawing from the bottom line shuttle from the bottom line shuttle to the guiding the bottom line guide.
CNA031466540A 2002-07-11 2003-07-10 Cop-latch cover Pending CN1470701A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002203024A JP2004041446A (en) 2002-07-11 2002-07-11 Bobbin case
JP203024/2002 2002-07-11

Publications (1)

Publication Number Publication Date
CN1470701A true CN1470701A (en) 2004-01-28

Family

ID=30437337

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA031466540A Pending CN1470701A (en) 2002-07-11 2003-07-10 Cop-latch cover

Country Status (3)

Country Link
JP (1) JP2004041446A (en)
KR (1) KR100636955B1 (en)
CN (1) CN1470701A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113906177A (en) * 2019-05-29 2022-01-07 李夏 Rotary drum box of sewing machine

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5021245B2 (en) * 2006-07-04 2012-09-05 株式会社廣瀬製作所 Bobbin case
WO2014103049A1 (en) * 2012-12-28 2014-07-03 株式会社広瀬製作所 Vertical full rotary hook
CN103966782B (en) 2014-05-13 2015-08-26 诸暨市新信机电科技有限公司 Embroidery machine bottom line broken string auto-induction apparatus and autostop method
CN103952872B (en) 2014-05-13 2015-07-08 诸暨市新信机电科技有限公司 Superhigh-speed embroidering machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113906177A (en) * 2019-05-29 2022-01-07 李夏 Rotary drum box of sewing machine

Also Published As

Publication number Publication date
KR20040007300A (en) 2004-01-24
KR100636955B1 (en) 2006-10-19
JP2004041446A (en) 2004-02-12

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication