EP1541736A2 - Dispositif de verrouillage pour une bobine de fil de canette - Google Patents

Dispositif de verrouillage pour une bobine de fil de canette Download PDF

Info

Publication number
EP1541736A2
EP1541736A2 EP04405582A EP04405582A EP1541736A2 EP 1541736 A2 EP1541736 A2 EP 1541736A2 EP 04405582 A EP04405582 A EP 04405582A EP 04405582 A EP04405582 A EP 04405582A EP 1541736 A2 EP1541736 A2 EP 1541736A2
Authority
EP
European Patent Office
Prior art keywords
bobbin
locking element
coil
locking device
locking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04405582A
Other languages
German (de)
English (en)
Other versions
EP1541736B1 (fr
EP1541736A3 (fr
Inventor
Hans Flückiger
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.)
BERNINA International AG
Original Assignee
Fritz Gegauf AG
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 Fritz Gegauf AG filed Critical Fritz Gegauf AG
Publication of EP1541736A2 publication Critical patent/EP1541736A2/fr
Publication of EP1541736A3 publication Critical patent/EP1541736A3/fr
Application granted granted Critical
Publication of EP1541736B1 publication Critical patent/EP1541736B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B57/00Loop takers, e.g. loopers
    • D05B57/26Bobbin holders or casings; Bobbin holder or case guards; Bobbin discharge devices

Definitions

  • the invention relates to a locking device for a bobbin according to the preamble of Patent claim 1.
  • the bobbin of sewing machines can either be stored directly in the bobbin and is thus directly accessible or it can be inserted in a specially designed bobbin case, which in turn is mounted in the bobbin.
  • the present invention relates to a bobbin mounted directly in the bobbin; However, it can also be used for a coil mounted indirectly in a bobbin case.
  • a bobbin case for rotary gripper is known, in which the coil on a cylindrical bobbin, which is part of the bobbin case, pushed and held by a safety lever.
  • the safety lever designed as a two-armed lever, is held in the two positions (open position and working position) by a spring-loaded plate.
  • the locking is released by manually turning the lever by 90 ° into an axially parallel position. Thereafter, the coil can be lifted out of the bobbin.
  • a coil spring between the coil base, ie the underlying coil flange, and the bobbin. This pushes after release of the coil by the lever, the coil partially out of the bobbin.
  • the spring exerts during braking a braking torque on the coil, which varies depending on the design of the coil surface and can not be influenced. This can hinder the sewing process.
  • a spool holder in which the spool is held by a spring-loaded retaining mandrel passing through the spool.
  • the retaining pin can be brought by a quarter turn out of the holding in the removal position and dissolves completely together with the coil from the bobbin. The retaining pin must therefore be inserted into this when inserting a full bobbin and then secured.
  • An object of the present invention is the creation a locking device for a bobbin, held with the lower thread bobbin in the bobbin can be without uncontrollable braking forces on they act, and in addition an axial pushing out the coil or the bobbin case from the bobbin the unlocking causes.
  • the Holding position which caught the coil in the bobbin holds, dissolved and at the same time the partial ejection of the Coil can be initiated.
  • the locking of a new in the bobbin to be inserted coil is done by axial insertion of the coil in the bobbin, until these in the recess in the bobbin abuts. There are then no further interlocking actions necessary.
  • the held by the locking element coil is through Braking the locking element in no way, because the latter does not touch the coil frictionally.
  • the only two-part locking element is captive connected to the bobbin and remains even after removing the coil on the bobbin.
  • reference numeral 1 denotes a coil carrier for a coil 3.
  • the coil 3 may have flanges with or without weight-reducing holes.
  • the bobbin 1 comprises a bottom 5, which may be broken to reduce the mass of holes 7.
  • a hollow cylindrical spool 9 is formed with a central bore 10.
  • the bottom 5 In the shell of which two opposing and axially extending slots 11 and 13 are embedded.
  • the bottom 5 In the area of the slots 11, 13, the bottom 5 may be partially broken, so that recesses 15, 17 are formed.
  • the two recesses 15,17 are not connected to each other, but they are separated by a web 19 (Fig.2).
  • the web 19 is part of the bottom 5.
  • the axial extent of the first slot 11 is greater than the axial extent of the second slot 13, so that the upper ends 43,45 of the slots 11 and 13 do not have the same distance from the bottom 5 (see in particular Figure 2).
  • the two slots 11,13 form an anti-rotation and an axial stop for a locking element 21, which is biased by a coil spring, short spring 23.
  • the locking element 21 comprises two legs 25,27, on each of which an outwardly projecting foot 29,31 is formed.
  • the two legs 25,27 are spaced from each other in the substantially cylindrical lateral surface 22 of the locking element 21 and are connected to the feet 29,31 opposite ends with a handle plate 33.
  • the two legs 25,27 are produced by a slotted cylinder (see Figure 6).
  • a blind bore 32 in the locking element 21 forms a guide for the spring 23.
  • the handle plate 33 projects beyond the first leg 25 radially.
  • the outer surface 35 of the second leg 27 is flush with the rear edge 37 of the handle plate 33.
  • Below the first leg 25 projecting nose 39 is spaced from the lower edge of a handle plate 33 toward stepped shoulder 41.
  • the foot 41 is wedge-shaped and goes transition-free into the surface of the foot 25 over.
  • the two feet 29, 31 project beyond the jacket of the coil mandrel 9 when the locking element 21 is inserted into the bore 10 in the coil carrier 1 or into the coil mandrel 9 in the coil carrier 1. They are guided laterally in the two slots 11, 13 (cf., FIG. 2).
  • the spring 23 is supported on the bottom of the web 19 and the top of the underside of the handle plate 33.
  • the locking element 21 can assume two different extreme positions in the spool 9: The spool removal position according to FIG. 2 and the working position according to FIGS. 3 and 4. In the removal position for the coil 3 according to Figure 2, the locking element 21 is located by the force of the spring 23 in its maximum extended position.
  • the two feet 29, 31 abut against the two upper ends 43 and 45 of the slots 11 and 13 and prevent the locking element 21 from becoming detached from the spool 9. Because the first slot 11 has a greater axial extent upwards, but the two feet 29, 31 are arranged symmetrically on the locking element 21, the locking element 21 is forcibly moved into an inclined position (see FIG.
  • the handle plate 33 moves in the direction of the axis X, so that the rear edge 37 and the front edge 47 of the nose 39 come to lie at the same distance from the axis X.
  • This pivoting back of the nose 39 in the direction of the axis of rotation X causes the coil 3 is now freely guided axially over the locking element 21 and removed or placed.
  • this is inserted axially until the lower flange 49 of the coil 3 rests for the time being on the higher foot 29 of the locking element 21.
  • the locking element 21 is in the unlocked position thanks to play in the bore 10 in the spool 9 obliquely and thereby releases the coil 3.
  • the inclined position of the locking element 21 in the extended position according to FIG. 2 could also be achieved if, with the same axial length of the two slots 11, 13, the foot 31 facing the nose 39 would have a greater axial thickness (cf. Line 51 in FIG. 5).
  • this design has the disadvantage that the overall height of the bobbin 1 is correspondingly increased, the height of the coil 3 is reduced or the coil would have to be undercut in the central area, so that the additional axial height of the foot 31 can find room in the recess 15.
  • the locking element 121 is arranged peripherally on the coil carrier 101.
  • the bobbin 101 can also be produced without a central spool, and the locking element 121 is guided in an axial slot 104, which is embedded in the lateral surface 102 of the bobbin 101 (FIGS. 8 and 9).
  • the locking element 121 comprises a handle plate 133, a foot 129 and two legs 125 connecting the handle plate 133 and the foot 129.
  • the foot 129 and a nose 139 which is part of the handle plate 133, project beyond the surface of the leg 125 and act as stops for the lower flange 49 of the coil 3 and the upper flange of the coil 3.
  • the spring 23 is supported at its lower end on the bottom 105 of the bobbin 101.
  • the upper end of the spring 23 abuts against a paragraph 141 arranged at a distance from the underside of the handle plate 133 and the nose 139.
  • coil 3 are the flanges of the coil 3 with clearance between the foot 129 and the nose 139.
  • the paragraph 141 is applied to the upper end 106 of the axial slot 104 pressed by the spring 23 at.
  • Invention may be the locking element, similar as in Figures 1 to 5, within the spool 9 to be arranged vertically displaceable and a mechanism include, as with pens for the movement of Mine is used. With the ballpoint pen mechanics known scenes it is also possible to release a locking position by axial pressure and with a spring an axial feed movement trigger and on pressing the latch again to activate again.
  • the grip plates 33, 133 are designed in such a way that the lower thread can not catch on being pulled off and also the triggering properties are not impaired.
  • the handle plate 33,133 may be formed in the direction of the nose 39,139 out with a suit that the locking element 21,121, if it has been accidentally placed without coil 3 in the inserted position, when pushing a coil 3 is unlocked immediately by the hollow coil mandrel pushes and by reinserting the coil 3 again assumes the coil-locking position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
EP04405582A 2003-12-10 2004-09-16 Dispositif de verrouillage pour une bobine de fil de canette Expired - Lifetime EP1541736B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH21052003 2003-12-10
CH21052003 2003-12-10

Publications (3)

Publication Number Publication Date
EP1541736A2 true EP1541736A2 (fr) 2005-06-15
EP1541736A3 EP1541736A3 (fr) 2006-04-26
EP1541736B1 EP1541736B1 (fr) 2008-05-21

Family

ID=34468809

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04405582A Expired - Lifetime EP1541736B1 (fr) 2003-12-10 2004-09-16 Dispositif de verrouillage pour une bobine de fil de canette

Country Status (4)

Country Link
US (1) US7036444B2 (fr)
EP (1) EP1541736B1 (fr)
AT (1) ATE396293T1 (fr)
DE (1) DE502004007215D1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2103725A1 (fr) * 2008-03-19 2009-09-23 Dürkopp Adler AG Crochet pour une machine à coudre du type à double point noué
EP2138623A1 (fr) * 2008-06-24 2009-12-30 Dürkopp Adler AG Crochet pour une machine à coudre à double point noué
EP2221410A1 (fr) * 2009-02-17 2010-08-25 BERNINA International AG Dispositif de verrouillage d' un boîtier de canette
ITVI20100069A1 (it) * 2010-03-15 2011-09-16 Gilberto Cracco Gruppo crochet perfezionato, particolarmente per macchine da cucire.
EP2463430A1 (fr) * 2010-12-09 2012-06-13 BERNINA International AG Dispositif de verrouillage pour une boîte à canette
CN104278437A (zh) * 2013-07-03 2015-01-14 启翔股份有限公司 缝纫机水平旋梭

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012115595A (ja) * 2010-12-03 2012-06-21 Brother Ind Ltd ボビン及びミシン
USD843977S1 (en) * 2017-07-11 2019-03-26 Aiwu Wang Winder
JP1610198S (fr) * 2017-09-25 2018-07-30

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US663675A (en) * 1900-08-07 1900-12-11 Singer Mfg Co Bobbin-case holder and bobbin-ejector for sewing-machines.
US832414A (en) * 1905-11-16 1906-10-02 Wheeler & Wilson Mfg Co Sewing-machine bobbin-case.
US2813500A (en) * 1951-06-26 1957-11-19 Singer Mfg Co Bobbin-cases for sewing machines
US2848965A (en) * 1954-01-25 1958-08-26 White Sewing Machine Corp Sewing machine
US3381643A (en) * 1966-10-10 1968-05-07 Singer Co Bobbin-supporting assemblies for sewing machines
US4462324A (en) * 1983-11-07 1984-07-31 The Singer Company Bobbin and plunger assembly
CS262030B1 (en) * 1987-06-15 1989-02-10 Jaromir Dvoracek Bobbin case of a rotating looper with vertical axis of rotation
DE19510830C2 (de) 1995-03-24 2001-11-22 Duerkopp Adler Ag Spulenbremse für die Greiferfaden-Spule einer Doppelsteppstich-Nähmaschine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2103725A1 (fr) * 2008-03-19 2009-09-23 Dürkopp Adler AG Crochet pour une machine à coudre du type à double point noué
KR101534860B1 (ko) * 2008-03-19 2015-07-07 뒤르콥 아들러 악티엔게젤샤프트 록스티치 재봉틀용 후크
EP2138623A1 (fr) * 2008-06-24 2009-12-30 Dürkopp Adler AG Crochet pour une machine à coudre à double point noué
CN101613915B (zh) * 2008-06-24 2012-12-12 杜尔克普-阿德勒股份公司 用于双锁式线迹缝纫机的旋梭
EP2221410A1 (fr) * 2009-02-17 2010-08-25 BERNINA International AG Dispositif de verrouillage d' un boîtier de canette
CH700442A1 (de) * 2009-02-17 2010-08-31 Bernina Int Ag Verriegelungsvorrichtung für eine Spulenkapsel für eine Unterfadenspule.
ITVI20100069A1 (it) * 2010-03-15 2011-09-16 Gilberto Cracco Gruppo crochet perfezionato, particolarmente per macchine da cucire.
EP2463430A1 (fr) * 2010-12-09 2012-06-13 BERNINA International AG Dispositif de verrouillage pour une boîte à canette
US8622009B2 (en) 2010-12-09 2014-01-07 Bernina International Ag Locking mechanism for a bobbin case
CN104278437A (zh) * 2013-07-03 2015-01-14 启翔股份有限公司 缝纫机水平旋梭

Also Published As

Publication number Publication date
ATE396293T1 (de) 2008-06-15
US7036444B2 (en) 2006-05-02
US20050126461A1 (en) 2005-06-16
DE502004007215D1 (de) 2008-07-03
EP1541736B1 (fr) 2008-05-21
EP1541736A3 (fr) 2006-04-26

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