US3362363A - Baste sewing process - Google Patents

Baste sewing process Download PDF

Info

Publication number
US3362363A
US3362363A US431004A US43100465A US3362363A US 3362363 A US3362363 A US 3362363A US 431004 A US431004 A US 431004A US 43100465 A US43100465 A US 43100465A US 3362363 A US3362363 A US 3362363A
Authority
US
United States
Prior art keywords
needle
sewing
stitch
bar
lateral
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
US431004A
Other languages
English (en)
Inventor
Bono Luigi
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.)
Necchi SpA
Original Assignee
Necchi SpA
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 Necchi SpA filed Critical Necchi SpA
Application granted granted Critical
Publication of US3362363A publication Critical patent/US3362363A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • D05B3/02—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 with mechanisms for needle-bar movement
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B65/00—Devices for severing the needle or lower thread
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B81/00—Sewing machines incorporating devices serving purposes other than sewing, e.g. for blowing air, for grinding

Definitions

  • ABSTRACT OF THE DISCLOSURE A method for baste stitching a fabric with a conventional home sewing machine which is adapted to sew a zig-zag pattern, comprising alternately shifting the needle bar from one side to the other of a central sewing axis while a fabric moves along said axis and sewing stitches in the fabric only while the needle bar is on one side of the axis but not while it is on the other side.
  • the present invention is directed to a process for forming basting stitches upon textile material through the use of a conventional, home Zig-Zag type of sewing machine and a means for adapting such a machine in order to carry out said process.
  • the presently disclosed process requires very simple means to obtain basting stitches with normal or conventional sewing machines.
  • This process is applied to family type sewing machines which are already disposed to perform zig-zag sewing and in which there exists a difference in phase of the needle relative to the rotating hook, this phase dilference being referred to the two extreme opposed lateral sewing positions relative to a central sewing position and the invention is characterized by the fact that the basting stitches are obtained by having the knotting of a stitch occur in only one lateral position of the needle while it is avoided or skipped in the opposite lateral position of the needle.
  • a preferred embodiment of a device which accomplishes the process of this invention comprises a rotating hook, a needle which cooperates with said hook in a known manner to form stitches, a needle bar upon which is fixed said needle, and control means adapted to transmit lateral displacements to said needle bar according to a pro-established sequence, and said device is characterized by the fact that the distance between the middle of the needle eye and the upper extremity of the needle tong (which generally is standard for needles used on home type sewing machines) is slightly less than said 3,362,363 Patented Jan. 9, 1968 standard distance.
  • the objects of the present invention generally are:
  • FIGS. 1 and 2 refer to the case of central sewing and schematically represent the relative positions between needle and hook gripping point at the instant in which the needle is at, respectively, its lowest point and at the succeeding instant in which the ascending needle encounters the hook gripping point.
  • FIGS. 1, 3, and 5 refer to the present invention and schematically represent the phase relationship between sewing needle and rotating gripping hook while the needle is at the bottom of its reciprocatory stroke and respectively for central line sewing, sewing to the right, and sewing to the left.
  • FIGS. 2, 4, and 6 schematically represent the situation which prevails respectively for the elements of FIGS. 1, 3, and 5 but subsequently in time, that is, while the needle is ascending and at the moment when the hook engages said needle.
  • FIGURE 7 is a schematic representation of a normal zig-zag stitch pattern
  • FIGURE 8 is a schematic representation of a baste stitch pattern derived from applying the process of this invention to the stitch pattern shown in FIGURE 7;
  • FIGURE 9 is a schematic representation of another stitch pattern obtained through use of a conventional automatic sewing machine.
  • FIGURE 10 is a schematic representation of a baste stitch pattern derived from applying the process of this invention to the stitch pattern of FIGURE 9;
  • FIGURE 11 is an actual illustration of the baste stitch shown schematically in FIGURE 10.
  • 1 indicates the sewing needle
  • 2 indicates the hook gripping point
  • 3 indicates the eye of needle 1
  • 4 indicates the circular trajectory travelled by thegripping point 2.
  • the needle 1 which is only schematically represented, includes a distinguishing feature relative to conventional needles used in conventional sewing machines.
  • the needle 1 is characterized by the fact that the distance between the median point of eye 3 and the top of the needle tong is slightly less than the corresponding distance on conventional needles used in home type sewing machines. As is known, in conventional needles this dis tance is universally standard.
  • FIG. 2 which refers to central sewing
  • the gripping point 2 encounters the ascending needle eye 3.
  • the formation of the stitch is uncertain at this point because the lower part of the loop outline is located, in this particular situation, at the same height as the gripping point 2. It may occur that either said point enters into the loop or that it passes under said loop, and these two possible occurrences respectively correspond to either the realization or non-realization of a coupling of the two threads for the formation of a stitch.
  • FIG. 4 refers to the case of right lateral sewing
  • the needle is in advanced phase relative to its position in FIG. 2.
  • the intersection between the point 2 and the needle 1 occurs, in this case, at a position on the needle above the eye 3, whereby the point 2 can definitely enter the loop and couple the two threads to form a stitch.
  • FIG. 6 refers to the case of left lateral sewing, and the needle is in retarded phase relative to its position in FIG. 2.
  • the point 2 following its circular trajectory, encounters or intersects the needle, which is performing its upward movement, at a position on the needle below the eye 3, whereby the point 2 definitely passes below the loop and thereby fails to couple the two threads together.
  • the difference in the distances, between the median point of the needle eye and the top of the needle tong, for the needle used herein as compared to a standard needle is such as to assure the above described relationship between the point 2 and the needle eye 3 as referred to FIGS. 4 and 6.
  • Stitches may be formed, therefore, having any desired length adapted to temporarily hold two pieces of textile together and to be easily unseamed.
  • the switching or changing over of the needle bar to position the needle either as shown in FIG. 3 or in FIG. 5, may be controlled or actuated either manually or automatically.
  • Manual changing over may be effected by maneuvering the appropriate control lever which is already provided in zig-zag sewing machines for laterally displacing the needle to its respective right and left sewing positions. Said lever is connected to the carriage of the needle bar through known linkage means.
  • Automatic changing over may be effected by means of a control member such as a cam which rotates in fixed phase relative to the reciprocating rectilinear movements of the needle bar.
  • Said cam can be mounted, in machines provided with an automatic sewing device, on the same shaft which carries the cams of the automatic sewing device.
  • the cam profile assumes the function of the manual control lever which would be used in a manual control means.
  • the sewing cycle is correlated to the cam profile which in turn determines the length of the basting stitch.
  • An analogous result may be obtained by providing means which act upon the connection between the needle bar and the main shaft of the machine to provide two different reciprocal positions of the needle bar. Said positions would be easily interchangeable, and one would correspond to normal sewing while the other would correspond to basting according to the above described principles.
  • FIGURES 7 and 8 schematically show the transition from a normal zig-zag stitching to a ba-ste stitching obtained through utilization of the afore-described process and apparatus. If, in a zig-zag sewing machine which is adapted to sew the pattern of FIGURE 7, the stitch control is set to obtain the maximum length of stitch and if it is provided that no knotting of the stitch occurs in one of the two lateral sewing positions of the needle, there results a straight stitching along the other lateral sewing position wherein the distance between two successive stitches is double that between two successive zig-zag stitches (FIGURE 8).
  • FIGURES 9 and 10 schematically show the transition from the normal stitching pattern produced by a conventional automatic sewing machine to the baste stitch pattern obtained through application of the process of this invention to this same machine. If, in an ornamental stitch pattern (FIGURE 9) wherein the sewing needle reciprocates at intervals a predetermined plural number of times while along one lateral sewing position and only once while along the other lateral position, the stitch knotting is avoided along said one position but effected only along said other position, there results the baste stitch pattern of FIGURE 10, which is pictorially shown in FIGURE 11.
  • a method for baste stitching a fabric with a zigzag sewing machine which comprises a sewing needle mounted on a needle bar, said bar being shiftable to place said needle at opposite lateral sewing positions relative to a central sewing position to provide normal zig-zag sewing, said method comprising the steps of:

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US431004A 1964-02-13 1965-02-08 Baste sewing process Expired - Lifetime US3362363A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT325464 1964-02-13

Publications (1)

Publication Number Publication Date
US3362363A true US3362363A (en) 1968-01-09

Family

ID=11104529

Family Applications (1)

Application Number Title Priority Date Filing Date
US431004A Expired - Lifetime US3362363A (en) 1964-02-13 1965-02-08 Baste sewing process

Country Status (4)

Country Link
US (1) US3362363A (it)
CH (1) CH415260A (it)
DE (2) DE1485254C3 (it)
GB (1) GB1079133A (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507236A (en) * 1966-02-18 1970-04-21 Janome Sewing Machine Co Ltd Stitch changing device in a zigzag sewing machine
US4155320A (en) * 1977-03-14 1979-05-22 Mefina S.A. Zig zag edge stitch

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56145888A (en) * 1980-04-11 1981-11-12 Brother Ind Ltd Sewing machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2218556A (en) * 1937-08-18 1940-10-22 Union Special Machine Co Lockstitch sewing machine
US2390288A (en) * 1941-07-11 1945-12-04 Ballamy Leslie Mark Needlebar mechanism for sewing machines
US2662495A (en) * 1950-10-05 1953-12-15 Singer Mfg Co Needle-bar drive for zig-zag sewing machines
US2706459A (en) * 1951-12-12 1955-04-19 White Sewing Machine Corp Needle bar clamp
US3081724A (en) * 1959-12-31 1963-03-19 Necchi Spa Zig-zag sewing machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2218556A (en) * 1937-08-18 1940-10-22 Union Special Machine Co Lockstitch sewing machine
US2390288A (en) * 1941-07-11 1945-12-04 Ballamy Leslie Mark Needlebar mechanism for sewing machines
US2662495A (en) * 1950-10-05 1953-12-15 Singer Mfg Co Needle-bar drive for zig-zag sewing machines
US2706459A (en) * 1951-12-12 1955-04-19 White Sewing Machine Corp Needle bar clamp
US3081724A (en) * 1959-12-31 1963-03-19 Necchi Spa Zig-zag sewing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507236A (en) * 1966-02-18 1970-04-21 Janome Sewing Machine Co Ltd Stitch changing device in a zigzag sewing machine
US4155320A (en) * 1977-03-14 1979-05-22 Mefina S.A. Zig zag edge stitch

Also Published As

Publication number Publication date
DE1948593U (de) 1966-10-27
DE1485254C3 (de) 1974-06-12
CH415260A (it) 1966-06-15
DE1485254A1 (de) 1969-06-04
GB1079133A (en) 1967-08-16
DE1485254B2 (de) 1973-11-15

Similar Documents

Publication Publication Date Title
US3362363A (en) Baste sewing process
US4122787A (en) Sewing method and machine
US3580199A (en) Embroidery stitching sewing machine
US2250696A (en) Sewing mechanism
US3301206A (en) Chain-stitch sewing machine
US2495069A (en) Article attaching machine
US3361100A (en) Basting device for zig-zag type sewing machines
US3374754A (en) Arrangement for basting on a sewing machine
US42770A (en) Improvement in sewing-machines
JP7397545B1 (ja) 縫製装置
US663752A (en) Embroidering attachment for sewing-machines.
US2018186A (en) Blind stitch sewing machine for seaming hems
US1985366A (en) Button sewing machine
US3447497A (en) Device for basting in lock-stitch sewing machines
US3476064A (en) Hosiery linking machine
US2599418A (en) Stitch-forming method and apparatus
US1565241A (en) Buttonhole-sewing machine
US1418223A (en) Buttonhole-sewing machine
US1322510A (en) Wolf arbettek
US2329639A (en) Rirbon trimming method
US2074310A (en) Ornamental seam sewing machine
US458434A (en) Machine
US737012A (en) Two-needle hemstitch sewing-machine.
US2232782A (en) Button-sewing machine
US1748709A (en) Needle-bar mechanism for sewing machines