EP0337952B1 - Machine à coudre - Google Patents

Machine à coudre Download PDF

Info

Publication number
EP0337952B1
EP0337952B1 EP89810270A EP89810270A EP0337952B1 EP 0337952 B1 EP0337952 B1 EP 0337952B1 EP 89810270 A EP89810270 A EP 89810270A EP 89810270 A EP89810270 A EP 89810270A EP 0337952 B1 EP0337952 B1 EP 0337952B1
Authority
EP
European Patent Office
Prior art keywords
framework
branches
branch
machine according
receivers
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.)
Expired - Lifetime
Application number
EP89810270A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0337952A1 (fr
Inventor
Michel Combepine
Antonio Jimenez
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.)
Mefina SA
Original Assignee
Mefina SA
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 Mefina SA filed Critical Mefina SA
Publication of EP0337952A1 publication Critical patent/EP0337952A1/fr
Application granted granted Critical
Publication of EP0337952B1 publication Critical patent/EP0337952B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B73/00—Casings
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2209/00—Use of special materials
    • D05D2209/10—Particular use of plastics

Definitions

  • the present invention relates to a sewing machine comprising a frame having a column as well as a first and a second superimposed arm, projecting laterally on this column and carrying, the upper arm, a sewing needle and its control mechanism and , the lower arm, a drive mechanism for the sewing material and a loop sensor device.
  • the frame in fact forms a housing and has, inside, different bearing surfaces and bearings for receiving the various organs of the machine.
  • the external face of this case gives the machine an essential part of its "design".
  • an internal frame even simplified to the maximum, must ensure the rigidity of the machine to guarantee correct operation of its structural elements. If a plastic frame, in the form of a housing, can be made sufficiently rigid because of its structure and the thickness of its walls, this is not necessarily the case of an internal frame of general U-shape, especially if, without affecting the rigidity of the assembly, we want to reduce the weight and, therefore, the cost, while retaining optimal functional features.
  • the object of the present invention is precisely to provide a satisfactory solution to the objectives of simplification and rationalization mentioned above without however harming the rigidity of the sewing machine.
  • the subject of the present invention is a sewing machine as defined in particular by claim 1.
  • the frame B of the sewing machine illustrated in FIG. 1, contains a U-shaped frame, 1, visible in FIG. 2, comprising two rods 2 and 3, solid or tubular, passing through the openings of two parallel plates 4 and 5
  • These different elements of the frame 1 can be fixed to each other by welding or by gluing, for example. They can be made of various materials, metallic or not. It is also possible to envisage the use of reinforced composite materials, in particular of matrices of polymers reinforced with filaments or fibers, for example carbon, Kevlar® or glass.
  • the frame 1 is embedded in a molded plastic body 6, U-shaped, which comprises an upper arm 7, a lower arm 8 and a vertical column 9 connecting the upper 7 and lower 8 arms.
  • the column 9 of the frame B se stands on a plinth 10, made of plastic, formed in one piece, by molding, with the rest of the body.
  • the rods 2 and 3 project at the respective free ends of the arms 7 and 8 and thus offer positioning and fixing surfaces suitable for receiving the sewing mechanisms, upper and lower, of the sewing machine, symbolized, in this variant, by the two parallelepipeds M1 and M2 and representing, for example, respectively the control mechanism of the sewing needle of the machine and that ensuring the transport of the fabric and the formation of the stitch in cooperation with the needle.
  • rods 2 and 3 have a tubular structure, they can be used in particular for the passage of transmission, control or connection members, not shown, for the mechanisms M1 and M2, or even for the passage of connections electrics of all kinds.
  • Different plastic materials can be used for the production of the molded part of the frame B.
  • polyester in particular polyethylene terephthalate (PETP), in particular that of Du Pont sold under the brand Rynite®, loaded with 30 to 55% of fibers, in particular glass fibers, molding temperature being between 260 ° and 300 ° C.
  • PETP polyethylene terephthalate
  • Rynite® polyethylene terephthalate
  • crystalline polyesters such as the product sold by Rhône-Poulenc, under the brand Teschster® T 20,000 VM 45 or E 20,021 V 35, loaded in particular with 20 to 30% of glass fibers, the molding temperature. being from 230 ° to 300 ° C.
  • Nylon, type polyamide 6.6 can also be used, in particular that marketed by Schulman under the brand Schulamid ® loaded with 35 to 50% glass fibers or other fillers and molded at a temperature of 280 ° to 300 ° C.
  • plastics can be used, polymerizable cold or hot in particular. It is also possible to use expanded polymers such as polyurethane foams or other rigid foams at room temperature.
  • the molded part 6 of FIG. 1 is replaced by two shells 6 a , 6 b each having a pair of imprints 7 a ′, 8 a ′, respectively 7 a ⁇ , 8 a ⁇ , the cross section of which corresponds, for each of them, substantially to half the cross section of the rods 2 and 3, respectively, of the frame 1.
  • the rods 2 and 3 of the frame 1 are sandwiched between the shells 6 a , 6 b taking place in the cavities 7 a ′, 7 a ⁇ , for the rod 2, and 8 a ′, 8 a ⁇ , for the rod 3, the mutual fixing of the shells 6 a , 6 b and, consequently, that of the rods 2 and 3 of the frame 1 inside the cavities 7 a ′, 7 a ⁇ and 8 a ′, 8 a ⁇ , being produced by gluing.
  • the imprints 7 a ′, 7 a ⁇ , 8 a ′, 8 a ⁇ so that the housings which they delimit, and which are intended for the rods 2 and 3, have a section slightly smaller than that of the corresponding portion of the shaft to receive so as to provide a slight clearance between the mating faces 6 c, 6 c shells, once the rods 2 and 3 of frame 1 sandwiched between these shells.
  • the third embodiment visible in FIG. 5 differs from the previous one essentially by replacing the shell 6b (fig. 8) with three flanges 9a, 9b and 9c enclosing the rods 2 and 3 of the frame and thus ensuring their fixing in homologous housings of the shell 6a with screws 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
EP89810270A 1988-04-14 1989-04-07 Machine à coudre Expired - Lifetime EP0337952B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1375/88A CH675600A5 (forum.php) 1988-04-14 1988-04-14
CH1375/88 1988-04-14

Publications (2)

Publication Number Publication Date
EP0337952A1 EP0337952A1 (fr) 1989-10-18
EP0337952B1 true EP0337952B1 (fr) 1993-02-24

Family

ID=4208955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89810270A Expired - Lifetime EP0337952B1 (fr) 1988-04-14 1989-04-07 Machine à coudre

Country Status (6)

Country Link
US (1) US5140918A (forum.php)
EP (1) EP0337952B1 (forum.php)
JP (1) JPH01313088A (forum.php)
CH (1) CH675600A5 (forum.php)
DE (1) DE68904975T2 (forum.php)
ES (1) ES2038843T3 (forum.php)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH683353A5 (fr) * 1990-05-23 1994-02-28 Mefina Sa Machine à coudre.
CH684418A5 (fr) * 1990-11-29 1994-09-15 Mefina Sa Machine à coudre.
US6694902B2 (en) * 2001-09-27 2004-02-24 Brother Kogyo Kabushiki Kaisha Sewing machine frame having reinforced structure and sewing machine provided with the frame
US6796255B2 (en) * 2001-09-27 2004-09-28 Brother Kogyo Kabushiki Kaisha Sewing machine frame having reinforced structure and sewing machine provided with the frame
US20050204977A1 (en) * 2004-02-17 2005-09-22 Tseng Hsien Chang Sewing machine body and method for making the same
US20050178308A1 (en) * 2004-02-17 2005-08-18 Chang Tseng H. Sewing machine body
JP2006129944A (ja) * 2004-11-02 2006-05-25 Aisin Seiki Co Ltd ミシン
US7040243B1 (en) * 2004-12-07 2006-05-09 Tseng Hsien Chang Body structure for sewing machine
JP4971004B2 (ja) * 2007-03-29 2012-07-11 株式会社鈴木製作所 ミシンのフレーム構造
US7934611B2 (en) * 2008-04-04 2011-05-03 Target Brands, Inc. Rack accessories

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1395834A (fr) * 1964-03-06 1965-04-16 Mach A Coudre Cosson Perfectionnements aux machines à coudre
US3420200A (en) * 1966-02-03 1969-01-07 Singer Co Modular sewing machines
FR1537818A (fr) * 1967-07-17 1968-08-30 Mach A Coudre Cosson Perfectionnement aux machines à coudre
DE2558450A1 (de) * 1975-12-23 1977-07-07 Koemmerling Kunststoff Blend- und/oder fluegelrahmen fuer fenster und tueren aus kunststoff
GB1530875A (en) * 1976-11-15 1978-11-01 Western Stamping Corp Sewing machine
DE2722824B2 (de) * 1977-05-20 1979-06-28 Fa. Otto Fuchs, 5882 Meinerzhagen Füllmittel für zu biegende Hohlprofile
DE2908346A1 (de) * 1979-03-03 1980-09-11 Wilfried Ing Grad Droege Rahmen- und/oder strukturbauelement
JPS618866Y2 (forum.php) * 1981-01-14 1986-03-19
US4440434A (en) * 1981-12-24 1984-04-03 Aldo Celli Vehicle body construction
JPS618866U (ja) * 1984-02-28 1986-01-20 株式会社島津製作所 ガスクロマトグラフ−質量分析装置
EP0188888B1 (en) * 1984-12-22 1989-07-05 Jaguar Co., Ltd. Assembly construction for sewing machine
JPS61149198A (ja) * 1984-12-22 1986-07-07 ジャガー株式会社 ミシン
US4552081A (en) * 1985-06-03 1985-11-12 The Singer Company Skeletal frame sewing machine
JPS6350037A (ja) * 1986-08-20 1988-03-02 Sumitomo Eaton Noba Kk ウエハ用カセツト

Also Published As

Publication number Publication date
CH675600A5 (forum.php) 1990-10-15
DE68904975T2 (de) 1993-06-17
EP0337952A1 (fr) 1989-10-18
DE68904975D1 (de) 1993-04-01
ES2038843T3 (es) 1993-08-01
JPH01313088A (ja) 1989-12-18
US5140918A (en) 1992-08-25

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