US3760188A - Knitting pattern and the like and electro-optic scanning mechanism therefor - Google Patents

Knitting pattern and the like and electro-optic scanning mechanism therefor Download PDF

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Publication number
US3760188A
US3760188A US00208636A US3760188DA US3760188A US 3760188 A US3760188 A US 3760188A US 00208636 A US00208636 A US 00208636A US 3760188D A US3760188D A US 3760188DA US 3760188 A US3760188 A US 3760188A
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United States
Prior art keywords
pattern
fields
scanning
shorter
longer
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Expired - Lifetime
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US00208636A
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English (en)
Inventor
E Plath
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Mayer and Cie GmbH and Co
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Mayer and Cie GmbH and Co
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B37/00—Auxiliary apparatus or devices for use with knitting machines
    • D04B37/02—Auxiliary apparatus or devices for use with knitting machines with weft knitting machines

Definitions

  • Each 112/84, 1 66/154 A of the trace tracks consists of longer and shorter fields which alternate with each other and which have differ- [56] References Cited ent optical characteristics, for example, different light UNTED STATES PATENTS permeability or different degrees of light reflection.
  • This invention relates to a pattern for controlling knitting apparatus and the like and to an electro-optical device for scanning the pattern line-by-line and pointby-point.
  • This technique is not new, but is already known. For example, it has been employed with recorders to read line-by-line and point-by-point patterns with fields or sectors possessing optically different features, for example, in the scanningof fields that are painted with different colors, by means of an electro-optical scanning device.
  • a knitting pattern can be manufactured only by means of stitches, it is customary to provide the patterns on checkered drafting paper in different colors or with different imprints, and each checker of the pattern of a stitch corresponds with the knitting.
  • Such pattern drafts can be scanned by means of photoelectric devices, stitch-bystitch, that is to say, checker'by-checker.
  • the outgoing electric signals produced by the photoelectric device can be directed to control the operating lever of the knitting machine of the stitch-building knitting tools or usually to the pre-set course with which special pattern courses are established. Pattern signals are accumulated on such courses in such manner as to be adapted to be distributed to the knitting systems of the knitting machines.
  • the pattern signals may be released upon the transition in the adjoining pattern draft field..As a result, mistakes occur in the knitting of the fabric, in that the fabric does not correspond to the pattern.
  • the invention has among its objects the provision of a novel pattern draft and of a scanning device therefor, the draft and device operating in such manner as to overcome the disadvantages outlined above which were inherent in the prior art.
  • a pattern draft in accordance with the present invention is characterized as follows: It has parallel stroke traces disposed transversely to its length and spaced at equal intervals.
  • the draft has a plurality of equally spaced transverse lines of the pattern to be scanned, such lines alternating with the stroke traces of the pattern draft.
  • the stroke traces consist of a plurality of sets of longer and shorter fields, such longer and shorter fields alternating and having different optical features, as for example, different light penetratabilities or permeabilities or a different degree of light reflection.
  • the lines of the pattern that are to be scanned can be connected in an already known manner in a chain consisting of identical four-square or rectangular fields, the division of the fields of this chain being at the same time equal to the division of at least one adjoining stroke trace, consisting of fields of different lengths.
  • the lines to be scanned do not have to be connected, and the stroke traces can, for example, also be employed afterwards on a preferably multi-colored pattern drawing that does not have to be divided into fields.
  • the device for scanning the pattern line-by-line has at least one electro-optical scanning point that can be directed on one line of the pattern at a time.
  • the scanning point is inflexibly connected to a second one that is directed toward the adjoining trace track.
  • the scan ning pair can be continuously adjusted toward the direction of the lines in small intervals above the pattern.
  • the scanning point pair can be manufactured in such way that it can be coupled to an electronic equipment that, depending upon the scanning signals of the second scanning point that scans the trace track.
  • the electrooptical scanning points form light fields on the pattern lines or pick up the reflected light from the trace tracks in light-sensitive devices.
  • the equipment can also be coupled to a light flash device to illuminate the pattern, the light flash equipment being actuated by stroke signals of the second electro-optical scanning point.
  • FIG.1 is a view in plan of one portion of a pattern in accordance with the present invention.
  • FIG.2 is a schematic view in front elevation of an equipment for the scanning of a pattern in accordance with F161;
  • F103 is a schematic view in side elevation of the equipment illustrated in FIG.2;
  • FIG.4 is an enlarged view of a portion of the pattern shown in FIG.1.
  • the pattern shown in the drawings is formed of normal pattern draft paper and is manufactured in the form of a paper sheet strap that has longitudinally spaced perforations 1 1 along both of its edges.
  • the perforations 11 receive the pegs 16 of the transportation cylinder (FIG.2) of a scanning device.
  • the pattern is divided in the usual manner by transverse lines and by longitudinally extending lines or breaks into rectangular fields 12 each of which corresponds to a knitting stitch of a knitting machine.
  • the individual pattern field lines 13 are separated from each other by trace tracks 14.
  • These trace tracks 14 consist of uniform intervals of wide, black fields and narrower white fields 14b.
  • the narrower white fields 14b always lie above the middle portion of the adjoining pattern fields 12.
  • the pattern to be knitted is shown on the pattern draft by filling in the pattern fields 12 of the different pattern field lines 13 with different colors which show or represent the corresponding coloring of the knitted fabric to be made, or it may represent a specific stitch combination of such fabric.
  • the colored fields are designated by reference characters 12a.
  • F IGS.2 and 3 there is shown a device by which patterns in accordance with the invention may be scanned.
  • the pattern 10 is placed over a transportation cylinder 15 that is equipped with locked-in pegs 16 which are received in the edge perforations 11 of the pattern 10.
  • the movable slide 17 can be continuously shifted by a driving mechanism (not shown).
  • Slide 17 has on its bottom side a first electro-optical scanning point or device 18 and a second electro-optical scanning point or device 19, the optical axes of devices 18 and 19 being separated by the distance d in the direction transverse to the length of the pattern 10.
  • the two scanning devices 18 and 19 are displaced through the distance e in the direction transverse to the axis of the cylinder 15.
  • the distance e corresponds to the centerline distance between a pattern field line 13 and an adjoining trace track 14. This is to say that the first scanning device 18 serves to scan the pattern field lines 13, while the second scanning device 19 is scanning an adjoining trace track 14.
  • the scanning devices 18 and 19 are so constructed and arranged so that each scanning device forms a light field of constant brightness on the pattern and absorbs the light reflected from this light field, the intensity of the thus reflected light depending upon the color of the pattern.
  • Each of such scanning devices 18 and 19 transforms the thus-received reflected light into a corresponding electrical signal.
  • the slide 17 is held from travel in the direction longitudinally of the pattern 10, and that the pattern travels in the direction of its length.
  • the devices 18 and 19 as travelling longitudinally with respect to the pattern 10.
  • the light field 20 of the first scanning point 18, as shown in F164 passes through a pattern field line 13 with the same speed as the light field 21 of the second scanning device 19 passes a trace track 14.
  • F 16.4 it is assumed that light field 21 has been moved through the distance d in the direction f of the length of the pattern 10 and that light field 21 has been moved by the distance e in the direction transverse to the length of the pattern 10.
  • the two scanning devices 18 and 19 are coupled by means (not specifically shown) in the slide 17. Such two devices are so connected that, by the time of the arrival of the light field 21 of the second scanning device 19 in an area 14b of the trace track 14, the light field 20 of the first scanning device 18 will be disposed within the next adjacent pattern field line 13.
  • the transverse length a of the shorter light field 14b of the trace track 14 is chosen in comparison to the transverse length b of the light field of the first scanning device 18 and the length b of the light field 20 of the second scanning device 19 that the pattern signal emitted by the scanning device 18 persists only so long as the light field 20 is disposed above a middle area, having the length c plus a minus b of the pattern field 12.
  • the light fields are limited to a width f which is smaller than the width of the pattern field lines as well as the width of the trace tracks 14.
  • f width of the size f (c a b)
  • the remaining rim areas of the pattern field are not taken into consideration, and thus can also show color spots of the adjoining pattern fields without signalling a wrong pattern signal from the scanning device 18.
  • the scanning by the first scanning device 18 starts if, as shown in FIG.4, the light field 21 of the second scanning device 18 has completely reached the light field 14b of the trace track 14.
  • the scanning operation ends as soon as the scanning field 21 has passed through the distance a d and has again reached a dark field 14a of the trace track 14.
  • Any pattern drawing without division into individual pattern fields can also be used as a pattern.
  • Trace track lines can be placed on such drawing, preferably mechanically, at uniform intervals parallel to each other and thus a scanning formation can be obtained. With the aid of this trace track the pattern can be scanned as to stitches in the above-described manner. In this case, naturally some color overlaps can occur at the individual scanning devices. If this scanning procedure is employed in connection with circular knitting machines with fine needle division, the above-mentioned few pattern mistakes at pattern overlaps are not disturbing due to the fact that the stitches are small in comparison with the total knitting pattern.
  • any pattern drawings can be evaluated in this manner without spending too much time to transform it on checkered pattern paper for a knitting pattern formation.
  • the scanning mechanism in accordance with the invention can be equipped with several pairs of scanning devices constructed and arranged as above-described so that several pattern lines of a pattern can be scanned simultaneously.
  • thepattern lines are composed of a plurality of serially arranged four-sided pattern fields
  • the trace tracks contain a number of sets of longer and shorter fields equal to the number of the four-sided pattern fields, and the shorter fields of said sets are generally longitudinally aligned with the center lines of the four-sided fields.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Knitting Machines (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
US00208636A 1971-01-19 1971-12-16 Knitting pattern and the like and electro-optic scanning mechanism therefor Expired - Lifetime US3760188A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712102238 DE2102238B2 (de) 1971-01-19 1971-01-19 Mustervorlage, beispielsweise gestrickmustervorlage, zur punktweisen abtastung in zeilenrichtung mittels einer elektrooptischen ablesevorrichtung

Publications (1)

Publication Number Publication Date
US3760188A true US3760188A (en) 1973-09-18

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ID=5796233

Family Applications (1)

Application Number Title Priority Date Filing Date
US00208636A Expired - Lifetime US3760188A (en) 1971-01-19 1971-12-16 Knitting pattern and the like and electro-optic scanning mechanism therefor

Country Status (7)

Country Link
US (1) US3760188A (Direct)
CH (1) CH527308A (Direct)
DE (1) DE2102238B2 (Direct)
ES (1) ES396820A1 (Direct)
FR (1) FR2119630A5 (Direct)
GB (1) GB1352899A (Direct)
IT (1) IT943392B (Direct)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4105157A (en) * 1976-08-17 1978-08-08 Silver Seiko Ltd. Program reading apparatus
US4120045A (en) * 1975-09-27 1978-10-10 Dr. Ing. Rudolf Hell, Gmbh Apparatus and method for stepwise scanning of patterns according to a scanning raster
US4879884A (en) * 1987-02-02 1989-11-14 Orizio Paolo S.P.A. Universal double-cylinder, multi-yarn-feed circular knitting machine
US5339657A (en) * 1992-09-01 1994-08-23 Mcmurray Fabrics, Inc. Net having different size openings and method of making
US20050166428A1 (en) * 2002-09-06 2005-08-04 Henderson Manufacturing Co. Plow hitch for vehicle

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3086121A (en) * 1959-10-27 1963-04-16 Gen Electric Photosensitive code reading system
US3291994A (en) * 1964-11-16 1966-12-13 Sperry Rand Corp Sprocket signal generator with novel aperture arrangement for precise timing of signals
US3365714A (en) * 1964-10-12 1968-01-23 Fma Inc Incremental code block apparatus
US3444358A (en) * 1965-05-14 1969-05-13 Ex Cell O Corp Record reader
US3472287A (en) * 1965-10-29 1969-10-14 Morat Franz Control device for textile machines
US3530341A (en) * 1966-10-31 1970-09-22 Richard C Hutchinson Flexible tape optical programmer
US3562494A (en) * 1967-11-24 1971-02-09 Fmc Corp Code detecting and control circuit for sorting articles
US3596060A (en) * 1967-05-04 1971-07-27 Alexander Inc Optical scanning unit for mark sensing

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3086121A (en) * 1959-10-27 1963-04-16 Gen Electric Photosensitive code reading system
US3365714A (en) * 1964-10-12 1968-01-23 Fma Inc Incremental code block apparatus
US3291994A (en) * 1964-11-16 1966-12-13 Sperry Rand Corp Sprocket signal generator with novel aperture arrangement for precise timing of signals
US3444358A (en) * 1965-05-14 1969-05-13 Ex Cell O Corp Record reader
US3472287A (en) * 1965-10-29 1969-10-14 Morat Franz Control device for textile machines
US3530341A (en) * 1966-10-31 1970-09-22 Richard C Hutchinson Flexible tape optical programmer
US3596060A (en) * 1967-05-04 1971-07-27 Alexander Inc Optical scanning unit for mark sensing
US3562494A (en) * 1967-11-24 1971-02-09 Fmc Corp Code detecting and control circuit for sorting articles

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4120045A (en) * 1975-09-27 1978-10-10 Dr. Ing. Rudolf Hell, Gmbh Apparatus and method for stepwise scanning of patterns according to a scanning raster
US4105157A (en) * 1976-08-17 1978-08-08 Silver Seiko Ltd. Program reading apparatus
US4879884A (en) * 1987-02-02 1989-11-14 Orizio Paolo S.P.A. Universal double-cylinder, multi-yarn-feed circular knitting machine
US5339657A (en) * 1992-09-01 1994-08-23 Mcmurray Fabrics, Inc. Net having different size openings and method of making
US20050166428A1 (en) * 2002-09-06 2005-08-04 Henderson Manufacturing Co. Plow hitch for vehicle

Also Published As

Publication number Publication date
IT943392B (it) 1973-04-02
GB1352899A (en) 1974-05-15
DE2102238A1 (de) 1972-08-10
CH527308A (de) 1972-08-31
DE2102238B2 (de) 1973-01-18
ES396820A1 (es) 1976-06-16
FR2119630A5 (Direct) 1972-08-04

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