US3012442A - Manually operable pattern selector device for an ornamental stitch sewing machine - Google Patents

Manually operable pattern selector device for an ornamental stitch sewing machine Download PDF

Info

Publication number
US3012442A
US3012442A US827008A US82700859A US3012442A US 3012442 A US3012442 A US 3012442A US 827008 A US827008 A US 827008A US 82700859 A US82700859 A US 82700859A US 3012442 A US3012442 A US 3012442A
Authority
US
United States
Prior art keywords
transmission
rocker
sewing machine
selector device
ornamental
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
US827008A
Other languages
English (en)
Inventor
Grunke Erich
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3012442A publication Critical patent/US3012442A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B19/00—Programme-controlled sewing machines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18288—Cam and lever
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18296—Cam and slide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams
    • Y10T74/2102—Adjustable

Definitions

  • the present invention relates to ornamental stitch sewing machines and particularly to devices for the selection 'of predetermined ornamental stitches to be sewn by the machines.
  • ornamental stitch devices comprise a number of rotating pattern cam discs and a transmission' rocker connected to one or more devices for influencing the formation of the ornamental seam and carrying a handoperated pattern selector.
  • the known pattern selectors arranged on the transmission rocker are, however, comparatively complicated to operate and are suitable only for scanning a small number of pattern cam discs.
  • the primary object of the present invention is to provide a device for the selection of possible sewing patterns which is of simple construction yet is not subjected to any limitations in connection with the use of greatly varying contours of cam discs.
  • an extremely simple construction of the selector switch is obtained by the feature that an operating shaft journalled to rotate on the transmission rocker is provided. with a helix or Worm of coarse pitch, the ridge of which forms the contact surface for the transmission members associated with the cam discs, it being possible to provide the worm with at least one inclined side face which operates as an ascending surface for the pointed end of the appropriate transmission member during the switching operation.
  • FIGURE 1 is a view in elevation of one embodiment.
  • FIGURE 2 is a section on the line 11-11 of FIG- URE 1.
  • FIGURE 3 is a section on an enlarged scale taken on the line III-HI of FIGURE 1.
  • FIGURE 4 is a view in front elevation of the control knob of the selector device shown in FIGURE 1.
  • FIGURE 5 is a view in elevation partly in section of a second embodiment.
  • FIGURE 6 is a section taken on the line VIVI of FIGURE 5.
  • FIGURE 7 shows a detail constituted by an insertion blade which is constructed difierently from that of the device illustrated in FIGURE 5.
  • FIGURE 8 is a view in elevation of a third embodiment of the invention.
  • FIGURE 9 is a section on the line IX-IX of FIG- URE 8.
  • transmission rocker arm 3 is pivotally mounted on a spindle 2 of a bearing block 1 in a fixed housing on an ornamental sewing machine.
  • the rocker 3 has a bore 4 which serves for the attachment of rods (not shown) for establishing the required connection with known devices of the sewing machine which influence the ornamental seam formation thereof.
  • the swinging movements of the transmission rocker 3 about its spindle 2 thus have the necessary efiect on the shape and appearance of the ornamental seam to be sewn.
  • each cam disc 5 is associated with a transmission member 6 each of which is constructed as a pin, the individual transmission members being arranged to slide longitudinally independently of one another in a guide 7 in a fixed housing.
  • a control shaft 8 which is provided over a part of its length, namely in the region of the transmission members 6, with a coarse pitch endless helix 0r worm 9.
  • any given point of the ridge 10 of the worm 9 lies adjacent one of the cam'discs 5, whilst by submitting the entire transmission rocker 3 to the action of a draw spring 11 (FIGURE 2) the worm 9 at the point in question is maintained in contact with a pointed end 12 of the approriate transmission member 6.
  • the cam'disc associated with this member thus determines, as it rotates, the swinging movement of the transmission rocker 3, whilst the other cam discs remain inoperative since the transmission means 6 associated with them lie out of contact with the worm 9.
  • a short portion of the shaft 8 is constructed as a hexagon 13 which is engaged by a leaf spring 16 which is mounted on the transmission rocker 3 by means of a screw 14 and abuts against a pin 15 on said rocker.
  • the control shaft 8 is held in each of its selected angular positions about its own axis in which one of the transmission means 6 co-operates with the worm screw 9.
  • the worm 9 has an inclined flank 19.
  • the ends 12 of the transmission means 6 may ride up flank 19.
  • the transmission rocker 6 would have to be raised from the transmission members 6 before switching over to a particular pattern. 1
  • the described arrangement has the further advantage that it contributes to a very simple construction of the actual selector device in the form of the worm 9, the ridge or operative contact surface of which includes contact positions for the transmission members 6 which are only slightlyoifset radially, namely, from the inoperative surface.
  • the ridge or operative contact surface of which includes contact positions for the transmission members 6 which are only slightlyoifset radially, namely, from the inoperative surface.
  • those of the respective transmission means other than that in contact with the ridge surface remain inoperative because the transmission means 6 at the ends remote from the cam discs 5 are provided with pointed ends '12.
  • a bearing block 101 in a fixed housing has a spindle 102 about which is pivotally mounted a transmission rocker 103.
  • a bore 104 is formed for the attachment of a connecting rod to the devices (not shown)for infiuencing the shape and appearance'of the ornamental stitching which is to be performed by the sewing machine.
  • five pattern cam discs 105 are also arranged on a common driving shaft (not shown). act on an equal number of pins or the like transmission means 106 journalled in front of them and arranged to slide independently of each other in a guide 107 (FIG- URE 6) in a fixed housing.
  • a hollow bush 120 mounted on the transmission rocker 103 is internally provided with a slot or other supporting means 121' (FIGURE 5 for an interchangeable blade 122, havingtwo shoulders 123 formed thereon, and which may be inserted into the bush 120 until the shoulders abut against the end of the bush.
  • the blade 122 has perforations 124 for the passage therethrough of the pointed ends 1112 (FIGURE 6) of such transmission members 106 which are. to remain inoperative, whilst, in the region of the particular transmission member 106 which is to establish the operative connection with the cam disc associated therewith the blade 122 is not perforated (FIGURE 5) so that it serves as an effective contact surface, which is pressed by the force of a spring, 111 (FIGURE 6), located between the rocker arm 103 and the fixed guide 107, against this single transmission member to hold the latter against its cam disc 105.
  • This particular cam disc as it rotates thus determines the required swinging movement of the transmission rocker 103.
  • FIGURE 7 shows an insertion blade 122a which illutsrates this. It differs from the blade 1-22 of FIGURE 5 in that it .has a different formation and arrangement of perforations 124a.
  • the arrangement shown in this embodiment has the further advantage that, by means of a set of differently They constructed blades, a selection of a comparatively large 7 struction and by the fact that the perforations in the the invention, as set forth in the appended claims.
  • longitudinal surfaces of the selected blade are only very slightly displaced relatively to the imperforate contact surface or surfaces effective at the time. Despite their very slight lateral displacement, they remain inoperative because the transmission members 106 at their ends 112 remote from the cam discs are pointed.
  • a bearing bl0ck'201 in a fixed housing has a spindle 202 for pivotally mounting a transmission rocker 203 with respect to the block.
  • a bore 204 is formed in the rocker 203 to serve for the attachment of a connecting rod to the devices (not shown) for effecting the selected ornamental seam.
  • twelve patterncam discs .205 are arranged on a common driving shaft (not shown). They act on an equal number of transmission members 206 journalled in front of them and arranged to slide independently of one another in a guide 207 in a fixed housing.
  • a control member 225 which, in the manner of a crank shaft, has crank cheeks 226 (FIGURE 8) and is fitted with connecting members 227 which correspond to the crank pins and are eccentrically arranged.
  • the connecting member 227 which happens to be nearest to the cam disc 205 by turning the control members 225 by means of an operating knob 218, serves as a contact surface for the pointed end 212 (FIGURE 9) of the appropriate transmission member 206, and the other cam discs remain inoperative.
  • An additional advantage of this arrangement lies in that any one of a very large number of pattern cam discs can be selectively scanned.
  • the appropriate effective contact surface in the form of an eccentric connecting member 227 has in fact only a very small annular clearance from the connecting members adjacent thereto. Despite their extremely slight radial displacement the latter remain inoperative because the transmission members 206 on the side remote from the cam discs 205 are provided withpointed ends 212.
  • control device for the selection of the patterns of stitching to be performed may be fitted in any desired position in or on the sewing machine itself.
  • it may be placed in the same position in an ornamental sewing machine as the selector control of the zigzag sewing machine according to United Kingdom Patent No. 792,328, ie on the arm and beneath a flap of the cover thereof as illustrated in FIGURES 2 and 9 of the drawings of said patent.
  • a manually operable pattern selector device for an ornamental stitch sewing machine compn'singa plurality of coaxial conjointly rotatable axially adjacent pattern cam discs; a single transmission rocker pivoted about an axis in spaced parallel relation to that of said cam discs and having a free portion'adapted to be connected to ornamental seam formation influencing means of a sewing machine; a plurality of substantially identical reciprocable transmission members equal in number to said cam discs and each associated with a different respective cam disc for reciprocation thereby; said transmission members being disposed between said cam discs and a selector portion of said transmission rocker spaced from both its pivot axis and said free portion, and having operating ends extending toward said selector portion and substantially equidistant from the pivot axis of said transmission rocker; selector means displaceably mounted in said selector portion of said transmission rocker and extending along said operating ends, said selector means having contact surface portions each associated With a ditferent respective transmission member and each selectively positionable in engagement with the operating end of
  • said Worm is provided with at least one oblique side for forming an ascending surface for sa d transmission members to bring said transmission members selectively into operative engagement for displacing said transmission rocker.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US827008A 1958-07-15 1959-07-14 Manually operable pattern selector device for an ornamental stitch sewing machine Expired - Lifetime US3012442A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0026176 1958-07-15

Publications (1)

Publication Number Publication Date
US3012442A true US3012442A (en) 1961-12-12

Family

ID=7091914

Family Applications (1)

Application Number Title Priority Date Filing Date
US827008A Expired - Lifetime US3012442A (en) 1958-07-15 1959-07-14 Manually operable pattern selector device for an ornamental stitch sewing machine

Country Status (5)

Country Link
US (1) US3012442A (es)
CH (1) CH372904A (es)
ES (1) ES250780A1 (es)
FR (1) FR1229585A (es)
GB (1) GB899648A (es)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247817A (en) * 1960-12-08 1966-04-26 Janome Sewing Machine Co Ltd Ornamental stitch sewing machine
US3511196A (en) * 1965-12-30 1970-05-12 Schmid Arthur Drive assembly incorporating stitch size adjustment device for automatic pattern-stitch sewing machine
US3714893A (en) * 1972-03-15 1973-02-06 Weber Marking Systems Inc Rotary label printing machine with adjustable rotor cam for separating the printing couple

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2706973A (en) * 1952-11-29 1955-04-26 Eaton Mfg Co Automatically adjustable valve mechanism
FR1139759A (fr) * 1954-09-18 1957-07-04 Messerschmitt Ag Machine à coudre à zigzag avec automatique pour points de feston
US2810360A (en) * 1954-12-08 1957-10-22 Singer Mfg Co Ornamental stitch sewing machines
US2854935A (en) * 1953-11-19 1958-10-07 Pfaff Ag G M Automatic shifting mechanism for sewing machines adapted for embroidery work

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2706973A (en) * 1952-11-29 1955-04-26 Eaton Mfg Co Automatically adjustable valve mechanism
US2854935A (en) * 1953-11-19 1958-10-07 Pfaff Ag G M Automatic shifting mechanism for sewing machines adapted for embroidery work
FR1139759A (fr) * 1954-09-18 1957-07-04 Messerschmitt Ag Machine à coudre à zigzag avec automatique pour points de feston
US2810360A (en) * 1954-12-08 1957-10-22 Singer Mfg Co Ornamental stitch sewing machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247817A (en) * 1960-12-08 1966-04-26 Janome Sewing Machine Co Ltd Ornamental stitch sewing machine
US3511196A (en) * 1965-12-30 1970-05-12 Schmid Arthur Drive assembly incorporating stitch size adjustment device for automatic pattern-stitch sewing machine
US3714893A (en) * 1972-03-15 1973-02-06 Weber Marking Systems Inc Rotary label printing machine with adjustable rotor cam for separating the printing couple

Also Published As

Publication number Publication date
CH372904A (de) 1963-10-31
ES250780A1 (es) 1960-06-16
GB899648A (en) 1962-06-27
FR1229585A (fr) 1960-09-08

Similar Documents

Publication Publication Date Title
US2862468A (en) Ornamental stitch sewing machines
US2684649A (en) Device for embroidering automatically with zigzag sewing machines
US2832302A (en) Sewing machine
US3012442A (en) Manually operable pattern selector device for an ornamental stitch sewing machine
US2810360A (en) Ornamental stitch sewing machines
US2969756A (en) Sewing machines
US3469422A (en) Knitting machine size changer
US3177835A (en) Automatic pattern zigzag sewing machine
US3067702A (en) Automatic and hand-operated apparatus for use in rotary type zigzag sewing machines
US2106434A (en) Knitting machinery
US3217677A (en) Ornamental stitch sewing machine
US3433092A (en) Pattern cam selecting arrangement
US4313389A (en) Sewing machine with a pattern selecting device
US2007863A (en) Sewing machine
US3053207A (en) Sewing machine
US3455258A (en) Automatic feed changing device in zigzag sewing machine
GB1517456A (en) Zig-zag sewing machine
DE3519849C1 (de) Blindstichnaehmaschine
US3034462A (en) Ornamental stitch sewing machine
US3208417A (en) Selector locking arrangement for sewing machines
US3313257A (en) Stitch control arrangement for a zig-zag sewing machine
US2334154A (en) Feed regulator for sewing machines
US3053206A (en) Sewing machines having ornamental stitch devices
DE755852C (de) Rundstrickmaschine mit zwei Nadelzylindern
DE912138C (de) Fadenfuehrerwechselvorrichtung fuer Rundstrickmaschinen