US3840949A - Method and apparatus for forming variegating projecting on a length of cloth - Google Patents

Method and apparatus for forming variegating projecting on a length of cloth Download PDF

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Publication number
US3840949A
US3840949A US00363821A US36382173A US3840949A US 3840949 A US3840949 A US 3840949A US 00363821 A US00363821 A US 00363821A US 36382173 A US36382173 A US 36382173A US 3840949 A US3840949 A US 3840949A
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Prior art keywords
cloth
loop
thread
retaining
guiding
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Expired - Lifetime
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US00363821A
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English (en)
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I Yoshihiro
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Individual
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Individual
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04D—TRIMMINGS; RIBBONS, TAPES OR BANDS, NOT OTHERWISE PROVIDED FOR
    • D04D11/00—Ribbon-threading apparatus or devices

Definitions

  • the loop forming and cloth projection binding steps preferably are repeated while the forming the loop around the retaining portions.
  • An oscillating rod adjusts the thread tension, and a feed needle reciprocates and oscillates relative to the cloth to catch portions of the cloth to form cloth projections which are bound by the formed loops.
  • the conventional variegation machine comprises a thin metal rod having, at one end, a small curved needle, with the other end of the thin metal rod being secured to a beam stand.
  • the variegation method for cloth generally comprises the steps of hooking the cloth on the small needle, binding the hooked portion of the cloth by a thread from a. bobbin, and binding together the bound portion of the cloth by the thread in order to link together a large number of bound portions.
  • the primary objective of the present invention is to provide a novel continuous method for variegating cloth and a novel machine for performing the method, in which the aforementioned disadvantages are obviated.
  • Another objective of the invention is to provide an For an understanding of the principles'of the inven tion,- reference is made to the following description of typical embodiments thereof as illustrated in theaccompanying drawings.
  • FIG. I is an exploded perspective view of the general mechanism of theapparatus for continuous variegation of cloth; a
  • FIGS. 2, 3, 4, 5, 6, 7, 8, 9, l0 and 11 are elevation views illustrating the operation of various portions of the mechanism, shown in FIG. 1, in performing the sequence of steps of the method of the invention;
  • FIG. 2a is a partial plan view, corresponding to FIG..
  • FIG. 3a is a partial plan view illustrating the operat- I
  • FIG. 5b isan elevation view of the control cams illustrating their relative angular relation with the parts of the mechanism occupying the positions shown in FIG. T
  • FIG. 6b is a view similar to FIG. 5b but illustrating the, relative angular relations of the cams with the parts occupying the positions shown in FIG. 6;
  • FIG. 7a is a partial plan view illustrating the movable member, a rotatable body and the cloth catching member with the parts occupyingthe positions shown in FIG. 7;
  • FIG. 7b is a view similar to FIGS. 5b and 6b illustrating the relative angular relations of the cams with the parts occupying the positions shown in FIG. 7;
  • FIG. 8a is a partial plan view illustrating the operating relation of the rotatable body and the cloth feed needle with the parts occupying the positions shown in FIG. 8;
  • FIG. 8b is an elevation view illustrating the angular relation of the control cams with the parts occupying the positions shown in FIG. 8;
  • FIG. 9a is a partial plan view illustrating the operating relation of the rotatable body and the cloth catching member with the parts occupying the positions shown in FIG. 9;
  • FIG. 10 is a perspective view, to a larger scale, showing the interrelation of parts occupying the positions shown in FIG. l1;-
  • FIGS. 12 and-13 are vertical sectional views illustrating two different positions of the rotatable body and the cloth catching member
  • FIG. 14 is'a vertical sectional view, corresponding to FIG. 12, of a modified embodiment of the rotatable body and the cloth catching member;
  • FIG. 15 is a plan view. taken essentially on the line xx of FIG. 14;
  • FIG. 16 is a vertical sectional view of the rotatable body and the cloth catching member shown in FIG. 14 but occupying relative positions corresponding to FIG.
  • FIG. l7 is a plan view taken essentially on the line y-yof FIG. 16;
  • FIG. 18 is a vertical sectional view of. the embodiment of the invention shown in FIGS. 14 through 17 illustrating a further position of the parts.
  • a longitudinally is formed with a rearwardly opening loop engaging notch b.
  • Member 1 is arranged to be reciprocated along member] is reciprocated and oscillated along guide grooves 10.
  • the apparatus illustrated in FIG. 1 further includes a rotating or rotatable body 5 contained within a large size container or housing 31 and oscillated by a crank portion 30 of main shaft 11.
  • a-connecting rod 32 interconnects crank portion 30 and a bent-outer end of a shaft 32' coaxial with rotatable guide grooves by linkage 13, 13 and 13" responsive to rotation of crank plate 12, while being also relatively oscillated by virtue of the cam shape of the guide grooves 10.
  • a hook lever 2 has a hook 2 at its upper end, and is pivotal about a pivot 2".
  • Hook lever 2 is pivoted re sponsive to rotation of a cam 15 secured on main shaft 11 and through the medium of a rod 16 engaged with cam 15, a crank 16' connected to rod 16, and a rod 16" connected between crank 16 and the lower end of hook lever 2.
  • hook rod or lever 2 is pivoted transversely of the path of movement of loop retaining member 1 and in front of member l, in order to hook a thread c into the hook 2' and to pull the thread across sloping surfaces l of plates 1' of member 1 and downwardly to engage thread 0 in the'engaging portions or notches b.
  • An'oscillatable hook member 3 is formed from a narrow plate or strip bent into a L-shape, and a thread passing hole or aperture 3' is formed in the upper end of the vertical leg of member 3. Thread 0 wound ona bobbin 19 is threaded through a thread tension controlling means 18, an aperture 4' in an oscillating rod 4,
  • a projection 3 of a generally triangular configuration, extends in coplanar'relation ilaterally from the vertical leg of member 3.
  • ' Member 3 is pivotal about a substantially vertical pivot 22, and is oscillated about pivot 22 responsive to rotation of a cam 20 fixed to shaft 11.
  • a rod 21 has one end engaged with cam 20 and its opposite end articulated to a lever 21 pivoted at 21" and having its other end articulated to the free end of the horizontal arm of member 3.
  • oscillat'able hook member 3 is oscillated through about 180 about the pivot 22, from one sideof movable member 1 to the opposite side thereof, for the purpose of engaging thread 0 in the front engaging portions or notches a of member 1 to form a thread loop a.
  • Oscillating rod 4 is oscillatableabout a pivot 4", at the end opposite that end formed with the thread passing hole 4', and rod 4 is formed with an elongated elliptical slot 23 substantially centrally thereof. Slot 23 re-,'
  • Oscillating plate 24 is oscillatable about a pivot 26 and; adjacent this pivot, is formed with a guide groove 27 having a quick return portion 27'.
  • An eccentric pin 28. on crank plate 12 is engaged in groove 27.
  • body 5 has a projecting hook portion 5'.whereby, when body 5 is oscillated, a forward I end d" of the thread loop d formed on member 1 is hooked on hook portion 5" and then the forward end d" is passed partly around body 5 and then drawn therefrom in order to bind a hooked portion of the cloth to provide a variegated cloth portion f.
  • a cloth catching needle 6 is formed on a lower end portion of a cloth catching member 7 in the form of a triangular plate, and is adapted to positively catch and hold the cloth 2 supplied by .a feeding needle 8.
  • a base portion'33 of cloth catching member 7 is slidable or'reciprocable into and out of an arm 35 of a stationary frame 34 within rotating or revolution body '5, and an oscillatable pin or catch '36 of stationary frame 34 is engaged in base portion33.
  • Mechanism 46 further includes a notched circular flat plate 47 and a pushing rod 48 which are operated, responsive to rotation of control cam 39, to reciprocate rod 48.
  • an end of rod 48 pushes sliding block 37 so that pin or catch 36 is oscillated to retract catching needle 6 from a notch 35' in arm 35 of stationary frame 34.
  • a cloth feeding needle 8 is oriented generally perpendicular to cloth catching needle 6, and is mounted for oscillation as well as reciprocation responsive to rotation of a control cam 40 secured to auxiliary shaft 44.
  • a'rod 49 has one end engaged with cam 40 and its opposite end articulated to a bent portion of a shaft 49'.
  • the opposite end of shaft 49' also has a bent portion articulated to one end of a lever 49" pivoted at 49".
  • a shorter arm of lever 49 is bent and its end is articulated'in an elongated slot 8 of cloth,
  • Motor 14 and sprocket 29 on shaft 11 are drivingly interconnected by an endless chain 51, and a sprocket 42 secured to main shaft]! is connected through an endless chain 52 to a sprocket 54 secured on auxiliary 5 shaft 44.
  • the teeth ratio of sprockets 42 and 43 is 1:2 so that, when main shaft 11 performs one revolution, auxiliary shaft 44 performs a half revolution and, when shaft 11 makes two revolutions, shaft 44 makes one revolution.
  • oscillating rod 4 is oscillated in a direction to slacken thread c.
  • hook rod or lever 2 Responsive to rotation of cam 15, hook rod or lever 2, as shown in FIGS. 2 and 2a, is pivoted, as a lever, in a direction essentially perpendicularly intersecting the path of movement of member 1 and in front of member I in order to hook thread into hook 2', guide thread 0 downwardly along the sloping surfaces 1" and finally engaging thread 0 with the rearwardly facing notches b.
  • hook member 2 As shown in FIG. 6, is
  • FIGS. 7, 7d and 7b when rotatable body 5 is now moved or rotated clockwise, hook protrusions5' hooks the front portion d" of loop d which 'up to this time has been engaged in notches a of loop retainingmember 1.
  • the clockwise rotation of rotatable body 5 is continued and, simultaneously, catching needle 6, responsive to rotation of cam 39, is moved in a direction to engage and lock the portion of the cloth e then on the pointed portion of feeding needle 8..
  • Oscillating rod'4 maintains thread'c stretched from the beginning of each cycle to thetime of catching of cloth e. However, at this time, rod 4 is swung in a direction to pull thread c and to disengage it from protrusion 5' when the hook protrusion 5 is moved to the position shown in FIGS. 8 and 8a,,From this position, body 5 is rotated in the opposite direction, or counterclockwise. Feed needle 8 is withdrawn due to rotation of cam 41, and is raised by rotation of cam 40 intothe original position.
  • the opening and closing of cloth catching member 6 can also be effected by the mechanism shown in FIGS. 14 through 18, constituting a modification of the invention.
  • base portion 33' of cloth catching member 7 is mounted to be reciprocated into and out of arm 35 of stationary frame 34 housed in rotating body 5.
  • Base portion 33 is flat and is provided with a rearwardly opening notch 55 therein.
  • bearing members 56, 56 there are mounted bearing members 56, 56.
  • An actuator 57 having a channel-shape cross-section, is oscillatably mounted in bearing members 56, 56, in a position directly above notchportion 55, by means of a pin 60,
  • Push rod 48' which is reciprocated, responsive to movement of cam 39, by thejneedle separating mechanism 46 and the flat plate 47, is mounted so asto move toward base portion 33 of cloth catching member 7 in order to enter into and be withdrawn from arm 35 of stationary frame 34.
  • Push rod 48' is made flat at its end portion 48", but its general configuration may be made convex.
  • end portion 48" of push rod and the other or second hoolt portion 59 of actuator 57 is inserted or dropped into the recess 63 formed in arm 35.
  • the first hook portion 58 of actuator 57 is disengaged from opening 62 of push rod 48', so that cloth catching needle is kept in the engaged position.
  • end portion 48" pushes against the inner edge 57' of actuator 57 to rotate actuator 57 clockwise and to disengage second hook portion 59 of the actuator from recess 63 of arm 35.
  • a pressing portion 64 of end portion 48" of push rod 48' abuts against 'a portion 65 formed on notch portion 55, base portion 33' is moved to the left to disengage catching needle 6 of cloth catching member 7 from notch 35'of arm 35.
  • a continuous method of forming a series of variegating projections on alength of cloth comprising the steps of, during each forming cycle, moving a thread loop retaining member, having forwardly and rearwardly facing thread retaining formations, forwardly along a guiding path;guiding a binding thread across the guiding path in advance of the thread loop retaining member for engaging the thread therewith to guide the thread into the rearwardly facing retaining formations; guiding the thread into the forwardly facing retaining formations to form a thread loop held in the retaining formations; hooking the rear end .of the loop on a cloth catching member to disengage the loop from the rearwardly facing retaining formations as the retaining member continues to move forwardly; feeding a portion of the cloth to the catching member for catching and retaining of a caught cloth projection by the catching member; hooking a front end of the loop on a rotatable body and rotating the body to draw the loop from the forwardly facing retaining formations; releasing the loop from the rotatable body and
  • a continuous method of forming a series of variegating projections on a length of cloth including the steps of, following the last repeated forming cycle, releasing the respective caught cloth projection from the catching member; and repeating the entire cycle of operations a number of times to form the series of variegating projections.
  • said tensioning member being movable between a forward thread guiding position and a rearward thread tensioning position; means operable, during movement of said loop retaining member forwardly along its guiding path, to move said loop tensioning member from its rearward thread tensioning position toward its forward thread guiding position; an oscillatable loop guiding body adjacent the forward end of said path; a cloth catching needle mounted on said oscillatable body for movement between an open cloth receiving position and a closed cloth retaining position; a cloth feeding needle mounted for reciprocation and oscillation in a substantially vertical plane intersecting said path and operable to catch a cloth and feed a caught cloth portion to said catching needle 'to the open position of the latter; means then operable to move said catching needle through its cloth retaining position to retain the caught cloth portion; and means, including said oscillatable body, operable to engage the loop on said thread retaining formations, to draw the loop from said thread retaining formations and to guide the loop over 9 said caught cloth portion; and
  • Forming apparatus including means operable to retain said cloth catching needle in its closed cloth retaining position during operation of 10 said loop retaining member, said loop forming means, said loop tensioning member, said oscillatable loop guiding body, said cloth'feeding needle, and said lastnamed means in forming at least one additional loop, guiding each' formed loop over the caught cloth portion and binding of each loop around the caught cloth portion.
  • said means for drawing the loop from said retaining formations and guiding the loop over the caught cloth portion includes a cloth catching member 'reciprocable longitudinally of said path relative to said rotatable body and carrying said cloth catching needle, said cloth catching member including a hook portion engageable with the rear end of the loop to disengage the loop from said rearwardly facing retaining formations as said retaining member is advanced forwardly along its guiding path, and further including a hook portion on said oscillatable body engageable with the forward end of the loop to draw the loop from the forwardly facing retaining formations during oscillation of said body in one direction and to release the loop for guiding over said oscillatable body and around the caught cloth portion, responsive to oscillation of said oscillatable body in the opposite direction.
  • said tensioning member is an oscillatable link pivotally mounted at one end and having the thread passing aperture at its opposite end.
  • said loop forming means comprises-a hook lever pivotally mounted intermediate its ends for pivotal movement across said guiding path, and an oscillatable hook member mounted for oscillation through an arc extend- 10 ing across said-guiding path, said hook member having a thread passing aperture therethrough through which the thread is passed in advance of engaging said hook lever.
  • said thread loop retaining member comprises a pair of laterally spaced parallel plates interconnected for conjoint movement along said guiding path; said plates being formed with downwardly and rearwardly sloping bottom surfaces at the forward end of said retaining member; said retaining formations comprising respective forwardly opening notches at the upper ends of said sloping surfaces and respective rearwardly opening notches at the lower ends of said sloping surfaces; said hook lever guiding the thread across the path for engagement with said sloping surfaces and movement into said rearwardly opening notches; said hook member guiding the thread.
  • Forming apparatus including first driving mechanism operable to cyclically reciprocate said thread loop retaining member along its guiding path, to cyclically operate said loop forming means, to cyclically move said tensioning member between its forward and rearward positions, to cyclically oscillate said loop guiding body, and to cyclically operate said loop drawing and guiding means; second driving mechanism operable to cyclically move said cloth catching needle between its open and closed positions and operable to cyclically reciprocate and oscillate said cloth feeding needle; and gearing interconnecting said first and second driving mechanisms and providing a gear ratio therebetween such that the cyclical speed of said first mechanism is equal to the cyclical speed of said second mechanism multiplied by the number of loops bound around each caught cloth portion.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Sewing Machines And Sewing (AREA)
US00363821A 1972-05-26 1973-05-25 Method and apparatus for forming variegating projecting on a length of cloth Expired - Lifetime US3840949A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47052284A JPS528910B2 (is") 1972-05-26 1972-05-26

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US3840949A true US3840949A (en) 1974-10-15

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US00363821A Expired - Lifetime US3840949A (en) 1972-05-26 1973-05-25 Method and apparatus for forming variegating projecting on a length of cloth

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US (1) US3840949A (is")
JP (1) JPS528910B2 (is")
DE (1) DE2326902A1 (is")
FR (1) FR2186982A5 (is")
GB (1) GB1434992A (is")
IT (1) IT990586B (is")

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507561A (en) * 1946-12-11 1950-05-16 Celanese Corp Method of producing differential color effects in fabrics, and the fabric
US2523690A (en) * 1945-12-10 1950-09-26 Finkelsteinas Jokubas Chenille looping machine for the manufacture of artificial furs

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2523690A (en) * 1945-12-10 1950-09-26 Finkelsteinas Jokubas Chenille looping machine for the manufacture of artificial furs
US2507561A (en) * 1946-12-11 1950-05-16 Celanese Corp Method of producing differential color effects in fabrics, and the fabric

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Publication number Publication date
FR2186982A5 (is") 1974-01-11
GB1434992A (en) 1976-05-12
JPS497589A (is") 1974-01-23
IT990586B (it) 1975-07-10
DE2326902A1 (de) 1973-12-13
JPS528910B2 (is") 1977-03-12

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